WO2021169872A1 - 组织成分无创检测方法、装置、***及可穿戴设备 - Google Patents

组织成分无创检测方法、装置、***及可穿戴设备 Download PDF

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WO2021169872A1
WO2021169872A1 PCT/CN2021/077058 CN2021077058W WO2021169872A1 WO 2021169872 A1 WO2021169872 A1 WO 2021169872A1 CN 2021077058 W CN2021077058 W CN 2021077058W WO 2021169872 A1 WO2021169872 A1 WO 2021169872A1
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light
light intensity
measured
value
measured part
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PCT/CN2021/077058
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English (en)
French (fr)
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徐可欣
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先阳科技有限公司
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Priority to JP2022551695A priority Critical patent/JP7462354B2/ja
Priority to EP21760200.2A priority patent/EP4111961A4/en
Priority to US17/802,650 priority patent/US20230010403A1/en
Priority to CA3169517A priority patent/CA3169517A1/en
Priority to AU2021225292A priority patent/AU2021225292B2/en
Priority to KR1020227033329A priority patent/KR20220147637A/ko
Publication of WO2021169872A1 publication Critical patent/WO2021169872A1/zh

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    • A61B5/1455Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
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    • A61B5/4869Determining body composition
    • A61B5/4872Body fat

Definitions

  • the present disclosure belongs to the technical field of spectral detection, and in particular relates to a non-invasive detection method, device, system and wearable device for tissue components.
  • tissue components include blood sugar, fat, and white blood cells.
  • the change in the concentration of the tissue component to be tested in the tested object itself is not large, so the effective signal to be tested is relatively weak.
  • it is extremely susceptible to interference from the human body background and changes in the measurement environment. The interference may even conceal the information of the tissue composition to be measured, making it difficult to extract weak signals under the interference of large background noise.
  • a reference measurement method based on floating reference theory is proposed. That is to say, for the tissue composition to be measured, there is a certain source detection distance. Because the absorption effect and scattering effect have the same degree of influence on the intensity of diffuse scattered light, but the direction is opposite, therefore, the output position corresponding to the source detection distance The sensitivity of the diffuse light intensity value to the change of the tissue component concentration to be measured is zero.
  • the exit position with the above characteristics can be called the reference position (or reference position), and the corresponding source detection distance is the reference distance.
  • the intensity value of diffuse scattered light emitted at the exit position corresponding to the source detection distance has the greatest sensitivity to changes in the concentration of the tissue component to be measured.
  • the exit position with the above characteristics can be called the measurement position, and the corresponding source detection distance is the measurement distance. Since the diffuse light intensity value corresponding to the reference distance reflects the response caused by other interferences in addition to the change in the concentration of the tissue component to be tested during the detection process, the diffuse light intensity value corresponding to the measurement distance reflects the tissue to be tested The response of the components, and the response of other interferences other than the components of the tissue to be measured, therefore, the above requirements require accurate determination of the reference position and/or the measurement position.
  • the central incidence is usually adopted, and the photosensitive surface is arranged at a limited distance from the center of the incident beam to receive the diffuse reflection light intensity value emitted from the surface of the measured part.
  • the above-mentioned limited source detection distance is determined based on the average parameters of most of the measured objects. On this basis, it is further determined which source detection distance is used as the reference distance, and which source detection distance is used as the measurement distance.
  • the related technology has at least the following problems, and the detection accuracy of the related technology is not high.
  • One aspect of the present disclosure provides a method for determining distance in non-invasive detection of tissue components, the method including:
  • the source detection distance corresponding to the first light intensity measurement value is used as the measurement distance
  • the source detection distance corresponding to the first light intensity reference value is used as the reference distance
  • the first light intensity measurement value is The first light intensity value at which the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be tested is the largest
  • the first light intensity reference value is the first light intensity value with the smallest absolute value of the light intensity change caused by the change in the concentration of the tissue component to be tested
  • a light intensity value, where the light intensity change caused by the change in the concentration of the tissue component to be measured is the change between the first light intensity value and the corresponding preset light intensity preset value.
  • Another aspect of the present disclosure provides a method for determining distance in non-invasive detection of tissue components, the method including:
  • the measured part of the measured object obtain the relationship between the tissue optical parameter at each preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured, wherein the number of the preset wavelength is at least one;
  • Another aspect of the present disclosure provides a method for non-invasive detection of tissue components, the method comprising:
  • each of the measurement The distance and each of the reference distances are determined according to the distance determination method in the non-invasive detection of tissue components as described above, and the number of the preset wavelengths is at least one;
  • the concentration of the tissue component to be measured is determined.
  • tissue component non-invasive detection device which includes:
  • the first acquisition module is configured to acquire the first light intensity value of each preset wavelength at each source detection distance for the measured part of the measured object, wherein the number of the source detection distance is at least two, The number of the preset wavelength is at least one;
  • the first determining module is configured to determine the first light intensity measurement value and the first light intensity measurement value from each of the first light intensity values corresponding to the preset wavelength according to the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured /Or the first light intensity reference value, the source detection distance corresponding to the first light intensity measurement value is used as the measurement distance, and the source detection distance corresponding to the first light intensity reference value is used as the reference distance, where
  • the first light intensity measurement value is the first light intensity value at which the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured is the largest, and the first light intensity reference value is the light intensity caused by the change in the concentration of the tissue component to be measured
  • the first light intensity value with the smallest absolute value of the change, and the light intensity change caused by the change in the concentration of the tissue component to be measured is the change between the first light intensity value and the corresponding preset light intensity preset value quantity.
  • Another aspect of the present disclosure provides a device for determining a distance in the non-invasive detection of tissue components, the device comprising:
  • the second acquisition module is configured to acquire the tissue optical parameter at each preset wavelength and the tissue optical parameter change relationship caused by the change in the concentration of the tissue component to be measured for the measured part of the measured object, wherein the preset wavelength The number of is at least one;
  • the second determining module is configured to determine each measurement distance and/or each reference distance according to the relationship between the tissue optical parameter at each preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured.
  • tissue component non-invasive detection device which includes:
  • the third acquisition module is configured to acquire the second light intensity measurement value at the measurement distance of each preset wavelength and/or the second light intensity reference value at the reference distance for the measured part of the object under test, wherein, each of the measured distances and each of the reference distances is determined according to the distance determining device in the non-invasive detection of tissue components as described above, and the number of the preset wavelengths is at least one; and
  • the third determining module is configured to determine the concentration of the tissue component to be measured according to the second light intensity measurement value and/or the second light intensity reference value at each of the preset wavelengths.
  • a wearable device which includes: a body and the tissue component non-invasive detection device of the present disclosure as described above; the tissue component non-invasive detection device is provided on the body;
  • the wearable device is worn on the measured part.
  • tissue component non-invasive detection system which includes the wearable device and terminal described in the present disclosure; the third determining module communicates with the third acquiring module and the terminal respectively connect;
  • the wearable device is worn on the tested part
  • the third acquisition module is configured to acquire the second light intensity measurement value of each preset wavelength at the measurement distance, and/or the second light intensity reference at the reference distance, for the measured part of the object to be measured Value, wherein each of the measured distances and each of the reference distances is determined according to the distance determining device in the non-invasive detection of tissue components as described above, and the number of the preset wavelengths is at least one;
  • the third determining module is configured to process each of the second light intensity measurement values at each of the preset wavelengths and/or each of the second light intensity reference values to obtain each of the processed preset wavelengths. Set each of the second light intensity measurement values and/or each of the second light intensity reference values under wavelengths, and combine the processed second light intensity measurement values and/or each of the second light intensity measurement values under each of the preset wavelengths and/ Or send each of the light intensity reference values to the terminal;
  • the terminal is configured to determine the concentration of the tissue component to be tested according to each of the second light intensity measurement values at each of the preset wavelengths and/or each of the second light intensity reference values after processing.
  • Fig. 1 is a flowchart of a method for determining distance in non-invasive detection of tissue components according to an embodiment of the present disclosure
  • Fig. 2 is a schematic diagram of a target ring beam formed on the surface of a measured part according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of obtaining a first light intensity value based on a photosensitive surface according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a target circular beam formed by scanning a spot light spot according to an embodiment of the present disclosure
  • Fig. 5 is a schematic diagram of a target circular beam formed by beam projection according to an embodiment of the present disclosure
  • Fig. 6 is another schematic diagram of obtaining a first light intensity value based on a photosensitive surface according to an embodiment of the present disclosure
  • FIG. 7 is another schematic diagram of obtaining a first light intensity value based on a photosensitive surface according to an embodiment of the present disclosure
  • FIG. 8 is another schematic diagram of obtaining a first light intensity value based on a photosensitive surface according to an embodiment of the present disclosure
  • Fig. 9 is a schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • Fig. 10 is another schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • FIG. 11 is a flowchart of another method for determining distance in non-invasive detection of tissue components according to an embodiment of the present disclosure
  • FIG. 12 is a flowchart of yet another method for determining distance in non-invasive detection of tissue components according to an embodiment of the present disclosure
  • FIG. 13 is a flowchart of a method for non-invasive detection of tissue components according to an embodiment of the present disclosure
  • FIG. 14 is a schematic diagram of a measurement ring light beam and a reference ring light beam formed on the surface of a measured part according to an embodiment of the present disclosure
  • 15 is a schematic diagram of acquiring a second light intensity measurement value and a second light intensity reference value based on a photosensitive surface according to an embodiment of the present disclosure
  • 16 is another schematic diagram of acquiring a second light intensity measurement value and a second light intensity reference value based on a photosensitive surface according to an embodiment of the present disclosure
  • FIG. 17 is another schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • FIG. 19 is a flowchart of yet another method for non-invasive detection of tissue components according to an embodiment of the present disclosure.
  • 20 is a schematic structural diagram of a distance determining device in non-invasive detection of tissue components according to an embodiment of the present disclosure
  • FIG. 21 is a schematic structural diagram of a first acquisition module according to an embodiment of the present disclosure.
  • Fig. 22 is a schematic structural diagram of a first forming sub-module according to an embodiment of the present disclosure
  • FIG. 23 is a schematic structural diagram of another distance determining device in non-invasive detection of tissue components according to an embodiment of the present disclosure.
  • FIG. 24 is a schematic structural diagram of another distance determining device in non-invasive detection of tissue components according to an embodiment of the present disclosure.
  • FIG. 25 is a schematic structural diagram of another distance determining device in non-invasive detection of tissue components according to an embodiment of the present disclosure.
  • FIG. 26 is a schematic structural diagram of another distance determining device in non-invasive detection of tissue components according to an embodiment of the present disclosure.
  • FIG. 27 is a schematic structural diagram of another distance determining device in non-invasive detection of tissue components according to an embodiment of the present disclosure.
  • FIG. 28 is a schematic diagram of another type of non-contacting of the photosensitive surface and the surface of the tested part according to an embodiment of the present disclosure
  • FIG. 29 is a schematic diagram of another non-contacting of the photosensitive surface and the surface of the tested part according to an embodiment of the present disclosure.
  • FIG. 30 is another schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • FIG. 31 is a schematic diagram of still another shielding interference light according to an embodiment of the present disclosure.
  • Fig. 32 is a schematic structural diagram of a tissue component non-invasive detection device according to an embodiment of the present disclosure.
  • FIG. 33 is a schematic structural diagram of a third acquisition module according to an embodiment of the present disclosure.
  • FIG. 34 is a schematic structural diagram of a second forming sub-module according to an embodiment of the present disclosure.
  • FIG. 35 is a schematic diagram of still another shielding interference light according to an embodiment of the present disclosure.
  • FIG. 36 is a schematic structural diagram of a wearable device according to an embodiment of the present disclosure.
  • Fig. 37 is a schematic structural diagram of a tissue component non-invasive detection system according to an embodiment of the present disclosure.
  • the inventor found that because the reference distance and the measurement distance vary depending on the wavelength, the object to be measured, and the part to be measured, therefore, if the measured part of the object is To determine the reference distance and measurement distance corresponding to each preset wavelength, it is necessary to set the photosensitive surface at each source detection distance from the center of the incident beam.
  • the above puts forward very high requirements on the production level of the photodetector. In other words, the above depends on the manufacturing level of the photodetector.
  • limited by the current level of photodetector production it is difficult to set the photosensitive surface at each source detection distance from the center of the incident beam. It can only be set at a limited source detection distance based on the average parameters of most measured objects. Photosensitive surface.
  • the inventor proposes a scheme of changing the arrangement of the light source and the photosensitive surface, which will be described below in conjunction with specific embodiments.
  • FIG. 1 is a flowchart of a method for determining distance in non-invasive detection of tissue components according to an embodiment of the present disclosure. This embodiment may be suitable for improving the detection accuracy of the concentration of tissue components to be tested.
  • the method includes operations S110 to S120.
  • the first light intensity value of each preset wavelength at each source detection distance is obtained for the measured part of the measured object, where the number of source detection distances is at least two, and the number of preset wavelengths Is at least one.
  • the source detection distance can indicate the distance between the light source and the emitting position.
  • the light source described here can be understood as the light beam formed on the surface of the measured part.
  • the emitting position can indicate the position of the emitted light intensity.
  • the intensity value is the light intensity value emitted from the surface of the measured part after the beam passes through the measured part.
  • the light intensity value described in the embodiment of the present disclosure all refers to the diffuse reflection light intensity value, and the light intensity value used to determine the measured distance and the reference distance in the embodiment of the present disclosure is the first light intensity value.
  • the source detection distance may indicate the distance between the light source and the photosensitive surface.
  • the photosensitive surface described here may be in contact with the measured part, or may not be in contact with the measured part, and it can be set according to the actual situation, which is not specifically limited here.
  • the photosensitive surface can be used to receive the light intensity value emitted from the surface of the measured part.
  • At least one first light intensity value of each preset wavelength at each source detection distance can be obtained, that is, when the measured part of the measured object is determined, for each preset wavelength Set the wavelength, and obtain at least one first light intensity value of the preset wavelength at each source detection distance.
  • Each first light intensity value mentioned here may be a first light intensity value obtained through an in vivo experiment, a first light intensity value obtained through a Monte Carlo simulation, or a first light intensity value obtained through an in vitro experiment.
  • Different first light intensity values of the same preset wavelength at the same source detection distance correspond to different concentrations of the tissue components to be tested, that is, at least one first light intensity value of the same preset wavelength at the same source detection distance is obtained. The concentration of the tissue component to be measured corresponding to the first light intensity value is different.
  • each first light intensity value is the first light intensity value obtained through in vivo experiments or the first light intensity value obtained through in vitro experiments
  • obtain each preset wavelength at The first light intensity value at each source detection distance can be understood as follows: for the measured part of the object to be measured, at least two target circular beams corresponding to each preset wavelength are formed on the surface of the measured part , Different target ring beams have different source detection distances, each source detection distance is the inner radius or outer radius of the target ring beam, and different target ring beams have the same geometric center. Based on the photosensitive surface corresponding to the geometric center, at least one first light intensity value emitted from the surface of the measured part after each target ring beam passes through the measured part.
  • the tissue component to be tested is blood glucose
  • the above-mentioned in vivo test may include OGTT (Oral Glucose Tolerance Test).
  • each first light intensity value is the first light intensity value obtained by Monte Carlo simulation
  • the first light intensity of each preset wavelength at each source detection distance is obtained for the measured part of the measured object
  • the value can be understood as follows: for the measured part of the object to be measured, the tissue optical parameters and skin structure parameters of each preset wavelength under the three-layer skin tissue model are obtained. Based on Monte Carlo simulation, according to various tissue optical parameters, various skin tissue structural parameters, changes in tissue optical parameters caused by changes in the concentration of tissue components to be tested, preset at least two source detection distances and preset number of incident photons, Determine the first light intensity value of each preset wavelength at each source detection distance.
  • the three-layer skin tissue model can be understood as including the epidermis, dermis and subcutaneous tissue.
  • the tissue optical parameters may include the absorption coefficient, scattering coefficient, various anisotropy factors, and average refractive index of each skin layer.
  • the skin tissue structure parameter can be understood as the thickness of each layer of skin tissue, that is, the thickness of the epidermal layer, the thickness of the dermis layer, and the thickness of the subcutaneous tissue as described above.
  • the change relationship of the tissue optical parameter caused by the change in the concentration of the tissue component to be measured may include the change relationship of the absorption coefficient caused by the change in the concentration of the tissue component to be measured and the reduced scattering coefficient change relationship caused by the change in the concentration of the tissue component to be measured.
  • the tissue components to be tested can include blood sugar, fat, and white blood cells.
  • the first light intensity measurement value and/or the first light intensity reference value are determined from each first light intensity value corresponding to the preset wavelength according to the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured
  • the source detection distance corresponding to the first light intensity measurement value is used as the measurement distance
  • the source detection distance corresponding to the first light intensity reference value is used as the reference distance
  • the first light intensity measurement value is the concentration of the tissue component to be measured
  • the first light intensity reference value is the first light intensity value with the smallest absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured.
  • the change in light intensity caused by the change in the concentration of tissue components is the change between the first light intensity value and the corresponding preset light intensity preset value.
  • the measurement distance is the source detection distance with the greatest sensitivity to changes in the concentration of the tissue component to be measured for the diffusely scattered light intensity value emitted from the emission position corresponding to the source detection distance
  • the reference distance is the emission position corresponding to the source detection distance
  • the sensitivity of the emitted diffuse light intensity value to the change in the concentration of the measured tissue component is zero.
  • the sensitivity of the diffuse light intensity value to the change in the measured tissue component concentration is the light intensity change and the change in the measured tissue component concentration.
  • the measurement distance is the source detection distance with the largest absolute value of the light intensity change from the emission position corresponding to the source detection distance
  • the reference distance corresponds to the source detection distance
  • the source detection distance at which the absolute value of the light intensity change from the exit position is the smallest.
  • the aforementioned diffuse reflection light intensity value is the first light intensity value.
  • the first light intensity measurement value and/or the first light intensity reference can be determined from the first light intensity values corresponding to the preset wavelength according to the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured
  • the source detection distance corresponding to the first light intensity measurement value is used as the measurement distance
  • the source detection distance corresponding to the first light intensity reference value is used as the reference distance
  • the first light intensity measurement value is the concentration of the tissue component to be measured
  • the first light intensity reference value is the first light intensity value with the smallest absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured.
  • the change in light intensity caused by the change in the concentration of tissue components is the change between the first light intensity value and the corresponding preset light intensity preset value.
  • Each preset value of light intensity can be understood as the value of light intensity emitted from the surface of the tested part when the concentration of the tissue component to be tested is the preset concentration.
  • each first light intensity value can be a first light intensity value obtained through an in vivo experiment
  • each preset light intensity value can be a light intensity value obtained by the measured object in an fasting state. If each first light intensity value is the first light intensity value obtained through Monte Carlo simulation or the first light intensity value obtained through an in vitro experiment, then each preset light intensity value can be when the preset concentration is zero. , The value of light intensity emitted from the surface of the measured part.
  • the first light intensity measurement value is determined from each first light intensity value corresponding to the preset wavelength according to the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured, and/or,
  • the first light intensity reference value can be understood as follows. For each preset wavelength, the first light intensity measurement value can be determined from each first light intensity value corresponding to the preset wavelength. Alternatively, the first light intensity measurement value and the first light intensity reference value may be determined from each first light intensity value corresponding to the preset wavelength. Alternatively, the first light intensity reference value may be determined from each first light intensity value corresponding to the preset wavelength. It can be understood that for all preset wavelengths, there are the following situations.
  • Case 1 Only the first light intensity measurement value corresponding to each preset wavelength is determined; Case 2: The first light intensity measurement value and the first light intensity reference value corresponding to each wavelength are determined; Case 3: Confirm The first light intensity measurement value corresponding to a part of the preset wavelength is determined, and the first light intensity reference value corresponding to another part of the preset wavelength is determined; case four, the first light intensity corresponding to a part of the preset wavelength is determined The measured value and the first light intensity reference value, and the first light intensity reference value corresponding to another part of the preset wavelength is determined; case 5. The first light intensity measurement value and the first light intensity corresponding to a part of the preset wavelength are determined The light intensity reference value, and the first light intensity measurement value corresponding to another part of the preset wavelength is determined.
  • Case 1 Only the measurement distance corresponding to each preset wavelength is determined; Case 2: The measurement distance and reference distance corresponding to each wavelength are determined; Case 3: The measurement distance corresponding to a part of the preset wavelength is determined, and , Determine the reference distance corresponding to another part of the preset wavelength; case four, determine the measurement distance and reference distance corresponding to a part of the preset wavelength, and determine the reference distance corresponding to another part of the preset wavelength; case five, The measurement distance and the reference distance corresponding to a part of the preset wavelength are determined, and the measurement distance corresponding to another part of the preset wavelength is determined. For each preset wavelength, determining the measurement distance and/or reference distance corresponding to the preset wavelength can be set according to actual conditions, which is not specifically limited here.
  • ⁇ i represents a preset wavelength, i ⁇ [1, M], M represents the number of preset wavelengths, and M ⁇ 1.
  • ⁇ j represents the source detection distance, j ⁇ [2, N], N represents the number of the source detection distance, N ⁇ 2.
  • T k represents the concentration of the tissue component to be tested, k ⁇ [1, P], P represents the number of the concentration of the tissue component to be tested, P ⁇ 1. It is represented by the preset density T 0 corresponding to each preset value of light intensity.
  • a first light intensity value of each preset wavelength ⁇ i at each source detection distance ⁇ j can be obtained for the measured part of the object to be measured
  • N first light intensity values at each tissue concentration T k to be tested can be obtained
  • P first light intensity value sets can be obtained, and each first light intensity value set includes N first light intensity values
  • each first light intensity value in the first light intensity value set can be Calculate with the light intensity preset value to determine the absolute value of the N light intensity changes caused by the changes in the concentration of the tissue components to be tested.
  • the change in the concentration of the tissue components to be tested can be represented by T k -T 0 .
  • the first light intensity value corresponding to the maximum absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured is taken as the first light intensity measurement value, and the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured is taken The minimum corresponding first light intensity value is used as the first light intensity reference value.
  • a first light intensity measurement value and a first light intensity reference value corresponding to the concentration T k of each component to be measured can be obtained.
  • the Source of the first light intensity value measured at different concentrations of tissue T k of the component corresponding to the same distance to be measured the first lower concentrations T k different tissue components to be tested
  • the source detection distance corresponding to the light intensity reference value is also the same.
  • the source detection distance corresponding to the first light intensity measurement value may be used as the measurement distance
  • the source detection distance corresponding to the first light intensity reference value may be used as the reference distance.
  • the first light intensity value at each source detection distance corresponding to each preset wavelength can be obtained for the measured part of the object to be measured, it is possible to accurately determine the first light intensity.
  • the intensity measurement value and/or the first light intensity reference value thereby realizing the accurate determination of the measurement distance and/or the reference distance.
  • the accurate determination of the measured distance and/or the reference distance provides a basis for the concentration of the tissue components to be measured, thereby improving the detection accuracy.
  • operation 110 may include the following operations.
  • For the measured part of the object to be measured at least two target circular beams corresponding to each preset wavelength are formed on the surface of the measured part.
  • the source detection distance of the different target circular beams is different, and each source detection The distance is the inner radius or outer radius of the target ring beam, and different target ring beams have the same geometric center.
  • Based on the photosensitive surface corresponding to the geometric center the first light intensity value emitted from the surface of the measured part after each target ring beam passes through the measured part is obtained.
  • a dynamic and variable size target ring beam can be used to enter, and a photosensitive surface is set at a position corresponding to the center of the target ring beam.
  • Different targets The ring beam can be at the same geometric center. This is because the size of the different target ring beams is different.
  • the size includes the inner radius and the outer radius, and the photosensitive surface is set at a position corresponding to the center of each target ring beam. Therefore, each first received by the photosensitive surface The light intensity value will be generated by the light beam incident from the corresponding target ring and passing through the corresponding transmission path.
  • the photosensitive surface and the target ring beam of each size will also correspond to a source detection distance.
  • the measured part of each measured object can be obtained in the above-mentioned manner.
  • Each first light intensity value corresponding to each preset wavelength can then accurately determine the reference distance and/or measurement distance corresponding to each preset wavelength for the measured part of the object to be measured.
  • the transmitting and receiving methods of the target ring beam and the photosensitive surface greatly reduce the requirements on the photodetector, thereby reducing the manufacturing cost and easy implementation.
  • continuous detection is realized.
  • the so-called continuous detection can be understood as the continuity of the source detection distance.
  • each target ring beam can be formed on the surface of the measured part with the same geometric center. It should be noted that the inner radius and outer radius of the annular beam of different targets are different. Both the inner radius and the outer radius refer to the radius.
  • the size of each target ring beam can be set according to actual conditions, and is not specifically limited here.
  • Different first light intensity values of the same preset wavelength under the same target ring beam correspond to different concentrations of the tissue components to be tested, that is, at least one first light intensity value of the same preset wavelength under the same target ring beam is obtained ,
  • the concentration of the tissue components to be tested corresponding to different first light intensity values is different.
  • the ring widths of different target circular beams can be the same or different, and can be specifically set according to actual conditions, which is not specifically limited here.
  • the ring width of each target ring beam can be understood as the difference between the outer radius of each target ring beam and the inner radius of each target ring beam.
  • Each target ring beam can be formed by a spot light spot or by beam projection.
  • the target ring beams corresponding to different preset wavelengths can be the same or different, and can be specifically set according to actual conditions, which is not specifically limited here.
  • FIG. 2 is a schematic diagram of a target ring beam formed on the surface of the measured part according to an embodiment of the present disclosure.
  • S target circular beams from inside to outside corresponding to each preset wavelength are formed, S ⁇ 2.
  • the ring width of each target ring beam can be 0.1mm.
  • the interval between two adjacent target circular beams may be 0.1 mm.
  • Different target ring beams have the same geometric center.
  • a photosensitive surface is provided, and the photosensitive surface can receive the first light intensity value emitted from the surface of the measured part after each target ring beam passes through the measured part.
  • FIG. 3 is a schematic diagram of obtaining a first light intensity value based on a photosensitive surface according to an embodiment of the present disclosure.
  • Method 1 Press the preset wavelength. That is, for each preset wavelength, each target ring beam is formed on the surface of the measured part. For each target ring beam formed, the target ring beam is obtained at the center of the target ring beam based on the photosensitive surface. The first light intensity value emitted from the surface of the measured part after the ring beam passes through the measured part. In this way, the first light intensity value corresponding to each target circular beam at the preset wavelength can be obtained. In the same way, the first light intensity value corresponding to each target circular beam at each preset wavelength can be obtained; mode two, according to the target circular beam.
  • different preset wavelengths sequentially form a target ring beam of the same size on the surface of the measured part.
  • each preset wavelength forms a target ring beam of the same size
  • the target ring beam of the same size is obtained after passing through the measured part.
  • the first light intensity value emitted from the surface.
  • the first light intensity values corresponding to the above-mentioned target circular beam of the same size at each preset wavelength can be obtained.
  • the first light intensity values corresponding to the target circular beams of different sizes at each preset wavelength can be obtained.
  • the first light intensity value at each source detection distance corresponding to each preset wavelength can be obtained by adjusting the size of the target circular beam, and therefore, it is possible to accurately determine the first light intensity.
  • the measured value and the first light intensity reference value thereby realizing the accurate determination of the measured distance and the reference distance.
  • the transmitting and receiving modes of the target ring beam and the photosensitive surface greatly reduce the requirements for the photodetector, thereby reducing the production cost and easy implementation. At the same time, continuous detection is realized.
  • each target ring beam is formed by spot-shaped spot scanning or formed by beam projection.
  • each target ring beam can be formed in the following two ways: method one, spot-shaped spot scanning formation; method two, beam projection formation.
  • mode one see Figure 4.
  • FIG. 4 is a schematic diagram of a target circular beam formed by scanning a spot light spot according to an embodiment of the present disclosure.
  • mode two see Figure 5.
  • FIG. 5 is a schematic diagram of a target circular beam formed by beam projection according to an embodiment of the present disclosure.
  • the photosensitive surface is in contact or non-contact with the surface of the measured part.
  • the form of non-invasive detection of tissue components may include contact detection and non-contact detection.
  • the contact detection can prevent the interference light from being received by the photosensitive surface, thereby further improving the detection accuracy.
  • Non-contact detection can avoid the influence of interfering factors such as temperature and pressure on the change of light intensity, which can further improve the detection accuracy.
  • the photosensitive surface is set in contact with the surface of the tested part, it can be considered that the form of non-invasive detection of tissue components is contact detection. It can be understood that the above-mentioned interference light can be prevented from being received by the photosensitive surface, and the detection accuracy can be further improved.
  • the first light intensity value can be obtained according to whether the photosensitive surface passes through the light guide part, and if the first light intensity value is obtained through the light guide part, whether the light guide part is in contact with The surface contact of the tested part determines the form of non-invasive detection of tissue components.
  • the light guide part includes a first end of the light guide part and a second end of the light guide part. The distance between the first end of the light guide part and the surface of the measured part is greater than the distance between the second end of the light guide part and the surface of the measured part. The first end of the light guide part and the second end of the light guide part are two opposite end surfaces.
  • the second end of the light guide is in contact or contact with the surface of the measured part.
  • the second end of the light guide part is the entrance of the light beam, that is, the light beam emitted after the target ring beam passes through the surface of the measured part will enter the light guide part through the second end of the light guide part and be transmitted to the first light guide part. end.
  • the photosensitive surface if the photosensitive surface is not in contact with the surface of the measured part, and the photosensitive surface does not obtain the first light intensity value through the light guide portion, it can be considered that the form of non-invasive detection of tissue components is non-contact detection. If the photosensitive surface obtains the first light intensity value through the light guide portion, in order to achieve non-contact between the photosensitive surface and the surface of the measured part, the photosensitive surface needs to be arranged at the first end of the light guide portion. On this basis, the form of non-invasive detection of tissue components is determined according to whether the second end of the light guide part is in contact with the surface of the tested part.
  • the form of non-invasive detection of tissue components is contact detection. If the second end of the light guide is in non-contact with the surface of the tested part, it can be considered that the form of non-invasive detection of tissue components is non-contact detection.
  • contact detection can include the following two methods.
  • Method 1 The photosensitive surface is in contact with the surface of the tested part.
  • FIG. 6 is another schematic diagram of obtaining the first light intensity value based on the photosensitive surface according to an embodiment of the present disclosure.
  • the photosensitive surface array is in contact with the surface of the tested part; the second way, the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in contact with the surface of the tested part.
  • FIG. 7 is another schematic diagram of obtaining the first light intensity value based on the photosensitive surface according to another embodiment of the present disclosure.
  • the second end of the light guide part is in contact with the surface of the measured part.
  • Non-contact detection can include the following two methods.
  • Method 1 The photosensitive surface is not in contact with the surface of the measured part, and the photosensitive surface does not pass through the light guide portion to obtain the first light intensity value. See Figure 3. In Figure 3, the photosensitive surface does not pass through the light guide portion to obtain the first light intensity value; mode two, the photosensitive surface is arranged at the first end of the light guide portion, and the second end of the light guide portion is not in contact with the surface of the measured part.
  • FIG. 8 is another schematic diagram of obtaining the first light intensity value based on the photosensitive surface according to an embodiment of the present disclosure. In FIG. 8, the second end of the light guide part is not in contact with the surface of the measured part.
  • non-contact between the photosensitive surface and the surface of the measured part can be realized by the following ways: the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in contact with the surface of the measured part or Non-contact, the first end of the light guide portion and the second end of the light guide portion are opposite end surfaces.
  • the photosensitive surface in order to achieve non-contact between the photosensitive surface and the surface of the measured part, the photosensitive surface may be disposed on the first end of the light guide portion.
  • the first end of the light guide part is in non-contact with the surface of the measured part, that is, a photosensitive surface can be provided on the first end surface of the light guide part in non-contact with the surface of the measured part.
  • the second end of the light guide part opposite to the first end of the light guide part can be in contact with the surface of the measured part, or it can be non-contact with the surface of the measured part. It can be set according to the actual situation. limited.
  • the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in contact with the surface of the measured part, it can be considered that the form of non-invasive detection of tissue components is contact detection. See Figure 7. If the photosensitive surface is arranged at the first end of the light guide part and the second end of the light guide part is not in contact with the surface of the tested part, it can be considered that the form of non-invasive detection of tissue components is non-contact detection. See Figure 8.
  • the photosensitive surface is not in contact with the surface of the measured part.
  • the following operations may also be included. Shield interference light.
  • part of the target ring beam after the target ring beam is transmitted to the tested part, part of the target ring beam will be directly reflected on the surface of the tested part to form surface reflected light.
  • Diffuse scattered light emitted from the surface of the measurement site ie, the first light intensity value.
  • the effective information can be understood as the response caused by the change in the concentration of the tissue component to be tested during the detection process is called effective information. Therefore, the surface reflected light can be As interference light. Since diffusely scattered light interacts with skin tissue and carries effective information, diffusely scattered light can be used as effective light.
  • each target ring beam passing through the measured part based on the photosensitive surface corresponding to the geometric center
  • the interference light is shielded, so that based on the photosensitive surface, each target ring beam is obtained after passing through the measured part.
  • the first light intensity value emitted The following two methods can be used to shield the interference light.
  • Method 1 If the photosensitive surface is not in contact with the surface of the measured part, and the photosensitive surface does not obtain the first light intensity value through the light guide part, the first light intensity value can be set in the gap area between the photosensitive surface and the surface of the measured part.
  • the light blocking part, and the first light blocking part is in contact with the surface of the measured part.
  • the photosensitive surface is arranged inside the first light blocking part.
  • the first light blocking portion is integrated with the photosensitive surface or the first light blocking portion is separate from the photosensitive surface.
  • FIG. 9 is a schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • Method 2 If the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is not in contact with the surface of the measured part, there can be a gap between the light guide part and the surface of the measured part
  • the area is provided with a second light blocking part, the first end of the second light blocking part is in contact with the second end of the light guide part, and the second end of the second light blocking part is in contact with the surface of the tested part.
  • the second end and the first end of the second light blocking portion are opposite end surfaces.
  • the distance between the first end of the second light blocking part and the surface of the measured part is greater than the distance between the second end of the second light blocking part and the surface of the measured part.
  • FIG. 10 is another schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • the interference light is shielded before the first light intensity value emitted from the surface of the measured part after each target ring beam passes through the measured part, so that only Diffuse light. Since the diffusely scattered light carries effective information, the detection accuracy is further improved.
  • FIG. 11 is a flowchart of another method for determining the distance in the non-invasive detection of tissue components according to an embodiment of the present disclosure. This embodiment may be suitable for improving the detection accuracy of the concentration of a tissue component to be tested.
  • the method includes operations S210 to S220.
  • At least two target circular beams corresponding to each preset wavelength are formed on the surface of the measured part.
  • the source detection distances of different target ring beams are different, each source detection distance is the inner radius or outer radius of the target ring beam, the different target ring beams have the same geometric center, and the number of preset wavelengths is at least one.
  • Each target ring beam is formed by spot-shaped spot scanning or formed by beam projection.
  • the photosensitive surface is in contact or non-contact with the surface of the measured part.
  • the non-contact of the photosensitive surface and the surface of the measured part can be realized by the following methods: the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in contact or non-contact with the surface of the measured part. The first end and the second end of the light guide portion are opposite end surfaces. If the photosensitive surface is not in contact with the surface of the measured part, the following operations may also be included before operation S220. Shield interference light.
  • the first light intensity measurement value and/or the first light intensity reference are determined from each first light intensity value corresponding to the preset wavelength according to the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured Value, the source detection distance corresponding to the first light intensity measurement value is used as the measurement distance, and the source detection distance corresponding to the first light intensity reference value is used as the reference distance.
  • the first light intensity measurement value is the first light intensity value at which the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured is the largest
  • the first light intensity reference value is the concentration change of the tissue component to be measured.
  • the first light intensity value at which the absolute value of the light intensity change is the smallest, and the light intensity change caused by the change in the concentration of the tissue component to be measured is the change between the first light intensity value and the corresponding preset light intensity preset value quantity.
  • the size of the target ring beam can be adjusted to obtain the first light intensity value at each source detection distance corresponding to each preset wavelength, it is possible to accurately determine the first light intensity.
  • the intensity measurement value and/or the first light intensity reference value thereby realizing the accurate determination of the measurement distance and the reference distance.
  • the accurate determination of the measured distance and the reference distance provides a basis for the concentration of the tissue components to be measured, thereby improving the detection accuracy.
  • the transmitting and receiving modes of the target ring beam and the photosensitive surface greatly reduce the requirements for the photodetector, thereby reducing the production cost and easy implementation. At the same time, continuous detection is realized.
  • FIG. 12 is a flowchart of another method for determining distance in non-invasive detection of tissue components according to an embodiment of the present disclosure. This embodiment may be suitable for improving the detection accuracy of the concentration of tissue components to be tested.
  • the method includes the following operations S310 to S320.
  • the relationship between the tissue optical parameter at each preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured is acquired for the measured part of the measured object, where the number of preset wavelengths is at least one .
  • each measurement distance and/or each reference distance is determined according to the relationship between the tissue optical parameter at each preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured.
  • human tissue can be simplified as a complex medium composed of scatterers and scattering background.
  • absorption and scattering will occur, and the absorption will directly cause light.
  • Energy attenuation, scattering will affect the distribution of light energy by changing the direction of photon transmission.
  • the intensity of diffuse scattered light emitted on the surface of the measured part is the result of the combined effect of the two.
  • absorption and scattering are determined by tissue optics.
  • the changes in the optical parameters of the tissue caused by the changes in the parameters and the concentration of the components of the tissue to be measured are reflected. According to the above, the measurement distance and the reference distance are determined by the absorption and scattering effects in different situations.
  • the tissue optical parameter corresponding to each preset wavelength and the change relationship of the tissue optical parameter caused by the change in the concentration of the tissue component to be measured can be obtained.
  • the relationship between the above-mentioned tissue optical parameter and the change of the tissue optical parameter caused by the change in the concentration of the tissue component to be measured can be referred to the above description.
  • the measurement corresponding to each preset wavelength can be determined according to the relationship between the tissue optical parameters at each preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured Distance and/or reference distance. That is, for each preset wavelength, the measurement distance and/or reference distance corresponding to the preset wavelength are determined according to the relationship between the tissue optical parameter corresponding to the preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured.
  • the foregoing may be based on the floating reference theory, and determine the measurement distance and/or reference distance corresponding to each preset wavelength according to the relationship between the tissue optical parameters at each preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured. It should be noted that the above premises are all under the condition that the measured part of the measured object is determined. In other words, the above-mentioned measured distance and reference distance corresponding to each preset wavelength are the measured part corresponding to the measured object.
  • the corresponding measurement distance and/or reference distance can be determined through the relationship between the tissue optical parameter and the tissue optical parameter change caused by the change in the concentration of the component to be measured.
  • FIG. 13 is a flowchart of a method for non-invasive detection of tissue components according to an embodiment of the present disclosure. This embodiment may be suitable for improving the detection accuracy of the concentration of tissue components to be tested.
  • the method includes operations S410 to S420.
  • each preset wavelength obtained at a measurement distance, and/or a second light intensity reference value at a reference distance, where each The number of measurement distances and each reference distance are determined according to the distance determination method in the non-invasive detection of tissue components according to the embodiment of the present disclosure, and the number of preset wavelengths is at least one.
  • the second light intensity measurement value and/or the second light intensity reference value corresponding to each preset wavelength can be obtained .
  • the second light intensity measurement value may be the second light intensity value of each preset wavelength at the measurement distance.
  • the second light intensity reference value may be the second light intensity value of each preset wavelength at the reference distance.
  • the measurement distances of different preset wavelengths may be the same or different.
  • the reference distance of different preset wavelengths may be the same or different.
  • each measurement distance and each reference distance can be preliminarily performed on at least one first light intensity value corresponding to each source detection distance for each preset wavelength. Determined by analysis. That is, for each preset wavelength, at least one first light intensity value corresponding to each source detection distance is obtained, and each first light intensity value is analyzed to determine a measurement distance and/or a measurement distance at the preset wavelength. Reference distance. That is, for the measured part of the measured object, at least one first light intensity value of each preset wavelength at each source detection distance is acquired.
  • the source detection distance corresponding to the first light intensity measurement value is used as the measurement distance
  • the source detection distance corresponding to the first light intensity reference value is used as the reference distance.
  • the source detection distance of different target ring beams is different, and each source detection distance is the inner radius of the target ring beam Or outer radius, different target ring beams have the same geometric center. Based on the photosensitive surface corresponding to the geometric center, obtain at least one first light intensity value emitted from the surface of the measured part after each target ring beam passes through the measured part; method two, for the measured part of the measured object , Obtain the tissue optical parameters and skin structure parameters of each preset wavelength under the three-layer skin tissue model.
  • various tissue optical parameters Based on Monte Carlo simulation, according to various tissue optical parameters, various skin tissue structural parameters, changes in tissue optical parameters caused by changes in the concentration of tissue components to be tested, preset at least two source detection distances and preset number of incident photons, Determine the first light intensity value of each preset wavelength at each source detection distance.
  • the second method is to obtain the relationship between the tissue optical parameters at each preset wavelength and the tissue optical parameter changes caused by the concentration of the tissue component to be tested for the tested part of the tested object. Determine each measurement distance and/or each reference distance according to the relationship between the tissue optical parameters at each preset wavelength and the tissue optical parameter changes caused by the concentration of the tissue component to be measured.
  • the second light intensity measurement value at the measurement distance of each preset wavelength is acquired, and/or the second light intensity reference value at the reference distance. It can be understood as follows that for each preset wavelength, a second light intensity measurement value at a measurement distance from the preset wavelength can be obtained. Alternatively, the second light intensity reference value at a reference distance from the preset wavelength may be obtained. Alternatively, the second light intensity measurement value at the measurement distance from the preset wavelength and the second light intensity reference value at the reference distance may be acquired. For all preset wavelengths, there are the following situations.
  • Case 1 Only the second light intensity measurement value corresponding to each preset wavelength is obtained; Case 2: The second light intensity measurement value and the second light intensity reference value corresponding to each wavelength are obtained; Case 3: Obtain The second light intensity measurement value corresponding to a part of the preset wavelength is obtained, and the second light intensity reference value corresponding to another part of the preset wavelength is obtained; case four, the second light intensity corresponding to a part of the preset wavelength is obtained The measured value and the second light intensity reference value, and the second light intensity reference value corresponding to another part of the preset wavelength is acquired; case 5, the second light intensity measurement value and the second light intensity corresponding to a part of the preset wavelength are acquired The light intensity reference value, and the second light intensity measurement value corresponding to another part of the preset wavelength is acquired. For each preset wavelength, obtaining the second light intensity measurement value and/or the second light intensity reference value corresponding to the preset wavelength can be set according to actual conditions, and is not specifically limited here.
  • both the second light intensity measurement value and/or the second light intensity reference value can be accurately determined, according to the accurately determined second light intensity measurement value and/or the second light intensity reference value , Determine the concentration of the components of the tissue to be tested, all of which can improve the detection accuracy.
  • the concentration of the tissue component to be measured is determined according to the second light intensity measurement value and/or the second light intensity reference value at each preset wavelength.
  • the tissue component to be tested can be determined according to the second light intensity measurement value and/or the second light intensity reference value at each preset wavelength
  • Case 1 Only the second light intensity measurement value corresponding to each preset wavelength is acquired.
  • the concentration of the tissue component to be tested can be determined according to the second light intensity measurement value at each preset wavelength.
  • Case 2 The second light intensity measurement value and the second light intensity reference value corresponding to each wavelength are obtained.
  • the difference calculation can be used to determine the concentration of the tissue component to be tested. That is, for each preset wavelength, the second light intensity measurement value at the preset wavelength and the second light intensity reference value are subjected to a differential operation to obtain a light intensity difference value. According to the light intensity difference value at each preset wavelength, the concentration of the tissue component to be tested is determined. The reason for performing the above difference operation is. Since the second light intensity measurement value corresponding to the reference distance reflects the response caused by other interferences in addition to the concentration change of the tissue component to be measured during the detection process, the second light intensity measurement value corresponding to the measurement distance reflects the response caused by other interferences.
  • the reference measurement can be used, that is, the second light intensity reference value corresponding to the reference distance can be used to the second light intensity corresponding to the measured distance
  • the measured value is corrected to eliminate the common mode interference to the greatest extent, thereby further improving the detection accuracy.
  • Case 3 The second light intensity measurement value corresponding to a part of the preset wavelength is acquired, and the second light intensity reference value corresponding to another part of the preset wavelength is acquired.
  • the concentration of the tissue component to be measured can be determined according to the second light intensity measurement value and the second light intensity reference value at each preset wavelength.
  • Case 4 The second light intensity measurement value and the second light intensity reference value corresponding to a part of the preset wavelength are acquired, and the second light intensity reference value corresponding to another part of the preset wavelength is acquired.
  • the difference calculation can be used to determine the concentration of the tissue component to be tested. That is, for the preset wavelength at which the second light intensity measurement value and the second light intensity reference value are obtained, the second light intensity measurement value at the preset wavelength and the second light intensity reference value are differentially calculated to obtain the light intensity Strong difference value.
  • the concentration of the tissue component to be tested is determined according to the light intensity difference value at a part of the preset wavelength and the second light intensity reference value at the other preset wavelength.
  • the second light intensity reference value corresponding to the reference distance can be used to correct the second light intensity measurement value corresponding to the measurement distance, so as to eliminate common mode interference to the greatest extent and further improve the detection accuracy.
  • the second light intensity measurement value and the second light intensity reference value corresponding to a part of the preset wavelength are acquired, and the second light intensity measurement value corresponding to another part of the preset wavelength is acquired.
  • the difference calculation can be used to determine the concentration of the tissue component to be tested. That is, for the preset wavelength at which the second light intensity measurement value and the second light intensity reference value are obtained, the second light intensity measurement value at the preset wavelength and the second light intensity reference value are differentially calculated to obtain the light intensity Strong difference value.
  • the concentration of the tissue component to be tested is determined according to the light intensity difference value at a part of the preset wavelength and the second light intensity measurement value at the other preset wavelength.
  • the second light intensity reference value corresponding to the reference distance can be used to correct the second light intensity measurement value corresponding to the measurement distance, so as to eliminate common mode interference to the greatest extent and further improve the detection accuracy.
  • the measured distance and/or reference distance corresponding to each preset wavelength can be accurately obtained for the measured part of the object to be measured, according to the accurately determined measured distance and/or reference distance , to achieve the accurate determination of the second light intensity measurement value and/or the second light intensity reference value. Since the concentration of the tissue component to be tested is determined according to the accurately determined second light intensity measurement value and/or the second light intensity reference value, the detection accuracy is improved.
  • operation 410 may operate as follows.
  • a measuring ring beam and/or a reference ring beam corresponding to each preset wavelength are formed on the surface of the measured part.
  • the inner radius or the outer radius is the corresponding measurement distance
  • the inner radius or the outer radius of each reference ring beam is the corresponding reference distance
  • each measurement ring beam and each reference ring beam have the same geometric center.
  • the second light intensity reference value emitted from the surface of the tested part after measuring the part is obtained from the photosensitive surface corresponding to the geometric center.
  • the following method can be used.
  • the surface of the measured part can be combined with Each preset wavelength corresponds to a measurement ring beam and/or a reference ring beam, that is, when the measured part of the object to be measured is determined, each preset wavelength corresponds to a measurement ring beam And/or a reference ring beam.
  • the inner radius or outer radius of each measuring ring beam is the corresponding measuring distance, that is, each measuring ring beam can be a beam whose source detection distance from the exit position is the corresponding measuring distance.
  • each reference ring beam can be a beam whose source detection distance from the exit position is the corresponding reference distance. Since there is a photosensitive surface corresponding to the exit position, each measuring ring beam can be a beam whose source detection distance from the photosensitive surface is the corresponding measurement distance, and each reference circular beam can be a source detection distance from the photosensitive surface Is the beam of the corresponding reference distance.
  • the measurement ring beam corresponds to the measurement distance, and the reference ring beam corresponds to the reference distance. It should be noted that each measuring ring beam and each reference ring beam can be formed by spot-shaped spot scanning or by beam projection.
  • FIG. 14 is a schematic diagram of a measuring ring beam and a reference ring beam formed on the surface of a measured part according to an embodiment of the present disclosure.
  • a measuring ring beam and a reference ring beam corresponding to each preset wavelength are formed on the surface of the measured part.
  • the measuring ring beam and the reference ring beam have the same Geometric center.
  • a photosensitive surface is set at the position corresponding to the geometric center. The photosensitive surface can receive the second light intensity measurement value emitted from the surface of the measured part after each measuring ring beam passes through the measured part, and each beam reference The second light intensity reference value emitted from the surface of the measured part after the circular beam passes through the measured part.
  • FIG. 15 is a schematic diagram of acquiring a second light intensity measurement value and a second light intensity reference value based on a photosensitive surface according to an embodiment of the present disclosure.
  • the above-mentioned measurement distance and/or reference distance are accurately determined, and therefore, the measurement distance and/or reference distance are accurately determined according to the method of forming the measurement ring beam and/or the reference ring beam , To achieve the accurate determination of the second light intensity measurement value and/or the second light intensity reference value. Since the concentration of the tissue component to be tested is determined according to the accurately determined second light intensity measurement value and/or the second light intensity reference value, the detection accuracy is improved.
  • each measurement ring beam is formed by spot-shaped spot scanning or formed by beam projection
  • each reference ring beam is formed by spot-shaped spot scanning or formed by beam projection
  • each measurement ring beam and each reference ring beam can be formed in the following two ways.
  • Method one point-shaped spot scanning formation
  • method two beam projection formation.
  • mode one see Figure 4.
  • mode two see Figure 5.
  • operation 420 may include the following operations. For each preset wavelength, the second light intensity measurement value at the preset wavelength and the second light intensity reference value are subjected to a differential operation to obtain a light intensity difference value. According to the light intensity difference value at each preset wavelength, the concentration of the tissue component to be tested is determined.
  • the second light intensity measurement value at the preset wavelength and the second light intensity reference value may be differentially calculated to obtain the preset wavelength.
  • the difference value of the light intensity at the wavelength Based on this, the light intensity difference value at each preset wavelength can be obtained, and the method of determining the concentration of the tissue component to be measured according to the light intensity difference value at each preset wavelength.
  • the above-mentioned determination of the concentration of the tissue component to be measured according to the light intensity difference value at each preset wavelength can be understood as follows.
  • the light intensity difference value at each preset wavelength can be input into the pre-trained tissue component prediction model , Get the predicted result, which is the concentration of the tissue component to be tested.
  • the specific calculation process is detailed in the patent document with the publication number CN1699973A and the publication date on November 23, 2005, which will not be detailed here.
  • the second light intensity reference value corresponding to the reference distance reflects the response caused by other interferences in addition to the change in the concentration of the tissue component to be measured during the detection process, and the second light intensity reference value corresponding to the measured distance
  • the second light intensity measurement value reflects the response of the tissue component to be measured and the response of other interferences except the tissue component to be measured. Therefore, the reference measurement is adopted, that is, the second light intensity reference value pair corresponding to the reference distance and the measurement distance are adopted.
  • the corresponding second light intensity measurement value is corrected to eliminate the common mode interference to the greatest extent, thereby further improving the detection accuracy.
  • the photosensitive surface is in contact with or non-contact with the surface of the tested part.
  • the form of non-invasive detection of tissue components may include contact detection and non-contact detection.
  • Contact detection can include the following two methods.
  • Method 1 The photosensitive surface is in contact with the surface of the tested part.
  • FIG. 16 is another schematic diagram of acquiring the second light intensity measurement value and the second light intensity reference value based on the photosensitive surface according to an embodiment of the present disclosure.
  • the photosensitive surface is in contact with the surface of the measured part; the second way, the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in contact with the surface of the measured part. See Figure 7.
  • Non-contact detection can include the following two methods.
  • Method 1 The photosensitive surface is not in contact with the surface of the measured part, and the photosensitive surface does not pass through the light guide portion to obtain the first light intensity value.
  • Method two the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is non-contact with the surface of the tested part. See Figure 8. It should be noted that the description of the contact detection and the non-contact detection can be referred to the corresponding part above, which will not be described in detail here.
  • non-contact between the photosensitive surface and the surface of the measured part can be achieved by the following methods: the photosensitive surface is arranged at the first end of the light guide portion, and the second The end is in contact or non-contact with the surface of the measured part, and the first end of the light guide part and the second end of the light guide part are opposite end faces.
  • the photosensitive surface in order to achieve non-contact between the photosensitive surface and the surface of the measured part, may be disposed on the first end of the light guide portion. It should be noted that for the description of arranging the photosensitive surface on the first end of the light guide portion, please refer to the corresponding part above, which will not be described in detail here.
  • the photosensitive surface is not in contact with the surface of the measured part. Based on the photosensitive surface corresponding to the geometric center, the second light intensity measurement value emitted from the surface of the measured part after each beam of the measuring ring passes through the measured part is obtained, and/or, each reference ring beam passes After the measured part, before the second light intensity reference value emitted from the surface of the measured part, the following operations may also be included. Shield interference light.
  • part of the measuring circle beam and the reference circle beam will be directly reflected on the surface of the measured part to form surface reflection light
  • the diffusely scattered light emitted from the surface of the measured part that is, the second light intensity measurement value and the second light intensity reference value.
  • the effective information can be understood as the response caused by the change in the concentration of the tissue component to be tested during the detection process is called effective information. Therefore, the surface reflected light can be As interference light. Since diffusely scattered light interacts with skin tissue and carries effective information, diffusely scattered light can be used as effective light.
  • the photosensitive surface is not in contact with the surface of the measured part, surface reflected light may be generated. Based on this, in order to further improve the detection accuracy, it is possible to obtain each measuring ring beam passing through the measured part based on the photosensitive surface corresponding to the geometric center Then, the second light intensity measurement value emitted from the surface of the measured part, and/or, after each reference ring beam passes through the measured part, before the second light intensity reference value emitted from the surface of the measured part , Adopt the method of shielding interference light, so that based on the photosensitive surface, obtain the second light intensity measurement value and/ Or the second light intensity reference value. The following two methods can be used to shield the interference light.
  • Method 1 If the photosensitive surface is not in contact with the surface of the measured part, and the photosensitive surface does not obtain the second light intensity measurement value and the second light intensity reference value through the light guide, then the surface of the photosensitive surface and the measured part can be A first light-blocking part is provided in the gap area between, and the first light-blocking part is in contact with the surface of the measured part.
  • the photosensitive surface is arranged inside the first light blocking part.
  • the first light blocking portion is integrated with the photosensitive surface or the first light blocking portion is separate from the photosensitive surface.
  • FIG. 17 is another schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • Method 2 If the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is not in contact with the surface of the measured part, there can be a gap between the light guide part and the surface of the measured part
  • the area is provided with a second light blocking part, the first end of the second light blocking part is in contact with the second end of the light guide part, and the second end of the second light blocking part is in contact with the surface of the tested part.
  • the second end and the first end of the second light blocking portion are opposite end surfaces. The distance between the first end of the second light blocking part and the surface of the measured part is greater than the distance between the second end of the second light blocking part and the surface of the measured part. See Figure 10.
  • the second light intensity measurement value and the second measured value of light emitted from the surface of the measured part are obtained after each measuring ring beam and/or each reference ring beam passes through the measured part.
  • the interference light is shielded, so that only the diffusely scattered light is obtained by the photosensitive surface. Since the diffusely scattered light carries effective information, the detection accuracy is further improved.
  • FIG. 18 is a flowchart of another non-invasive detection method of tissue components according to an embodiment of the present disclosure. This embodiment may be suitable for improving the detection accuracy of the concentration of a tissue component to be tested.
  • the method includes operations S510 to S570.
  • At least two target circular beams corresponding to each preset wavelength are formed on the surface of the measured part.
  • the source detection distances of different target ring beams are different, each source detection distance is the inner radius or outer radius of the target ring beam, the different target ring beams have the same geometric center, and the number of preset wavelengths is at least one.
  • Each target ring beam is formed by spot-shaped spot scanning or formed by beam projection.
  • the first light intensity measurement value and the first light intensity reference value are determined from each first light intensity value corresponding to the preset wavelength according to the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured,
  • the source detection distance corresponding to the first light intensity measurement value is taken as the measurement distance
  • the source detection distance corresponding to the first light intensity reference value is taken as the reference distance.
  • the first light intensity measurement value is the first light intensity value at which the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured is the largest
  • the first light intensity reference value is the concentration change of the tissue component to be measured.
  • the first light intensity value at which the absolute value of the light intensity change is the smallest, and the light intensity change caused by the change in the concentration of the tissue component to be measured is the change between the first light intensity value and the corresponding preset light intensity preset value quantity.
  • a measuring circular beam and a reference circular beam corresponding to each preset wavelength are formed on the surface of the measured part.
  • each measuring ring beam is the corresponding measurement distance
  • the inner radius or outer radius of each reference ring beam is the corresponding reference distance
  • each measuring ring beam is Each reference ring beam is at the same geometric center.
  • Each measuring ring beam is formed by spot-shaped spot scanning or formed by beam projection
  • each reference ring beam is formed by spot-shaped spot scanning or formed by beam projection.
  • a difference operation is performed on the second light intensity measurement value at the preset wavelength and the second light intensity reference value to obtain a light intensity difference value.
  • the concentration of the tissue component to be tested is determined according to the light intensity difference value at each preset wavelength.
  • the photosensitive surface is in contact or non-contact with the surface of the measured part.
  • the non-contact of the photosensitive surface and the surface of the tested part can be achieved by the following methods.
  • the photosensitive surface is arranged at the first end of the light guide part, the second end of the light guide part is in contact or non-contact with the surface of the measured part, and the first end of the light guide part and the second end of the light guide part are opposite end faces.
  • the photosensitive surface is not in contact with the surface of the measured part, the following operations may also be included before operation S520. Shield interference light. And, before operation S550, the following operations may also be included. Shield interference light.
  • the first light intensity value at each source detection distance corresponding to each preset wavelength can be obtained by adjusting the size of the target ring beam. Therefore, the accurate determination of the first light intensity measurement value and/or the first light intensity reference value is achieved, and thus the measurement distance and/or the reference distance are accurately determined.
  • the accurately determined measurement distance and/or reference distance combined with the method of forming the measurement ring beam and/or the reference ring beam, the second light intensity measurement value and/or the second light intensity reference are realized Accurate determination of the value.
  • the concentration of the tissue component to be tested is determined according to the accurately determined second light intensity measurement value and/or the second light intensity reference value, the detection accuracy is improved.
  • the differential operation the common mode interference in the second light intensity reference value and the second light intensity measurement value is eliminated, thereby further improving the detection accuracy.
  • the transmitting and receiving modes of the target ring beam and the photosensitive surface greatly reduce the requirements for the photodetector, thereby reducing the production cost and easy implementation. At the same time, continuous detection is realized.
  • FIG. 19 is a flowchart of yet another method for non-invasive detection of tissue components according to an embodiment of the present disclosure. This embodiment may be suitable for improving the detection accuracy of the concentration of a tissue component to be tested.
  • the method includes operations S610 to S660.
  • the relationship between the tissue optical parameter at each preset wavelength and the tissue optical parameter change caused by the concentration of the tissue component to be measured is acquired for the measured part of the measured object, where the number of preset wavelengths is at least one.
  • each measurement distance and each reference distance are determined according to the relationship between the tissue optical parameter at each preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured.
  • a measurement circular beam and a reference circular beam corresponding to each preset wavelength are formed on the surface of the measured part.
  • each measuring ring beam is the corresponding measurement distance
  • the inner radius or outer radius of each reference ring beam is the corresponding reference distance
  • each measuring ring beam is Each reference ring beam is at the same geometric center.
  • Each measuring ring beam is formed by spot-shaped spot scanning or formed by beam projection
  • each reference ring beam is formed by spot-shaped spot scanning or formed by beam projection.
  • the photosensitive surface is in contact or non-contact with the surface of the tested part.
  • the non-contact of the photosensitive surface and the surface of the measured part can be realized by the following methods: the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in contact or non-contact with the surface of the measured part.
  • the first end and the second end of the light guide portion are opposite end surfaces.
  • a difference operation is performed on the second light intensity measurement value at the preset wavelength and the second light intensity reference value to obtain a light intensity difference value.
  • the concentration of the tissue component to be tested is determined according to the light intensity difference value at each preset wavelength.
  • the following operations may be further included before operation S640. Shield interference light.
  • the method for determining the distance in the non-invasive detection of tissue components described in the embodiments of the present disclosure can be executed by the device for determining the distance in the non-invasive detection of tissue components, and the method for non-invasive detection of tissue components can be executed by the device for non-invasive detection of tissue components.
  • the device and the tissue component non-invasive detection device can be implemented by software and/or hardware, and the tissue component non-invasive detection device can be configured in a wearable device, such as a smart watch.
  • FIG. 20 is a schematic structural diagram of a distance determining device in the non-invasive detection of tissue components according to an embodiment of the present disclosure. This embodiment may be suitable for improving the detection accuracy of the concentration of a tissue component to be measured.
  • the device 1 for determining the distance in the non-invasive detection of tissue components includes a first acquiring module 10 and a first determining module 11.
  • the structure and working principle will be described below in conjunction with the drawings.
  • the first acquisition module 10 is configured to acquire the first light intensity value of each preset wavelength at each source detection distance for the measured part of the measured object, wherein the number of source detection distances is at least two, and Let the number of wavelengths be at least one.
  • the first determining module 11 is configured to determine the first light intensity measurement value and/or the first light intensity measurement value from each first light intensity value corresponding to the preset wavelength according to the absolute value of the light intensity change caused by the change in the concentration of the tissue component to be measured
  • a light intensity reference value, the source detection distance corresponding to the first light intensity measurement value is used as the measurement distance, and the source detection distance corresponding to the first light intensity reference value is used as the reference distance, where the first light intensity measurement value is to be
  • the light intensity change caused by the concentration of the tissue component to be measured is the change between the first light intensity value and the corresponding preset light intensity preset value.
  • the specific processing process of the first obtaining module 10 and the first determining module 11 can be referred to the description of the corresponding part of the distance determination method in the non-invasive detection of tissue components, which will not be described in detail here.
  • the first acquisition module 10 includes a first formation sub-module 100 and a first acquisition sub-module 101.
  • the first forming sub-module 100 is configured to form at least two target ring beams corresponding to each preset wavelength on the surface of the tested part of the object to be tested, wherein the different target ring beams
  • the source detection distance is different, each source detection distance is the inner radius or outer radius of the target ring beam, and the different target ring beams have the same geometric center.
  • the first acquiring sub-module 101 is configured to acquire the first light intensity value emitted from the surface of the measured part after each target ring beam passes through the measured part based on the photosensitive surface corresponding to the geometric center.
  • the specific processing process of the first forming sub-module 100 and the first obtaining sub-module 101 can be referred to the description of the corresponding part of the distance determination method in the non-invasive detection of tissue components, which will not be described in detail here.
  • the first forming sub-module 100 includes a light source emitting unit 1000, a beam adjusting unit 1001, and a control unit 1002.
  • the control unit 1002 may be respectively communicatively connected with the light source emitting unit 1000 and the beam adjusting unit 1001.
  • the control unit 1002 is configured to control the light source emitting unit 1000 and the beam adjustment unit 1001 to cooperate to form at least two pieces corresponding to each preset wavelength on the surface of the measured part of the measured object according to the corresponding working state instructions. Beam target ring beam.
  • the working state instruction may be an instruction to control the working state of the light source emitting unit 1000 and the beam adjusting unit 1001.
  • the control unit 1002 can make the light source emitting unit 1000 and the beam adjustment unit 1001 cooperate together according to the corresponding working state instructions to form at least two pieces corresponding to each preset wavelength. Beam target ring beam. It can be understood that the above-mentioned control unit 1002 cooperates with the light source emitting unit 1000 and the beam adjusting unit 1001 according to the corresponding working state instruction to form each target circular beam at each preset wavelength.
  • the beam adjustment unit 1001 includes a MEMS (Microelectromechanical Systems, microelectromechanical systems) scanning mirror 10010.
  • MEMS Microelectromechanical Systems, microelectromechanical systems
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident
  • the light beam is projected to the MEMS scanning mirror 10010, and the MEMS scanning mirror 10010 is controlled to convert each incident light beam into a corresponding target ring beam according to the corresponding operating state instruction, and project each target ring beam to the measured part.
  • the light source emitting unit 1000 and the MEMS scanning mirror 10010 can cooperate to form each target circular beam under the control of the control unit 1002.
  • the MEMS scanning mirror 10010 may be a two-dimensional MEMS scanning mirror.
  • the control unit 1002 synchronously controls the light source emitting unit 1000 and the MEMS scanning mirror 10010, and adopts a progressive scan method to realize a two-dimensional scanned image composed of preset pixels. If the trajectory formed by the preset pixels is If it is the target ring, the two-dimensional scanned image is the target ring image.
  • the above scanning method allows the display time and space coordinates of the preset pixel points in the target ring image to be determined.
  • the spatial coordinates of the preset pixel points in the target ring image are determined by the deflection angle of the MEMS scanning mirror 10010.
  • the display time of the preset pixel points in the target ring image is determined by the light source emitting unit 1000.
  • the light source emitting unit 1000 and the MEMS scanning mirror 10010 can be synchronously controlled by the control unit 1002 to realize the correspondence between the display time of the preset pixel point and the space coordinate.
  • the preset pixel points are different, target ring images with different sizes will be formed. Projecting the target ring images of different sizes to the measured part forms a target ring beam of different sizes.
  • the spatial coordinates and display time of the above-mentioned preset pixel points may be embodied in the working state instruction.
  • the beam adjustment unit 1001 includes a scanning galvanometer assembly 10011.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident
  • the beam is projected to the scanning galvanometer assembly 10011, and the scanning galvanometer assembly 10011 is controlled to convert each incident beam into a corresponding target ring beam according to the corresponding operating state command, and project each target ring beam to the measured part .
  • the light source emitting unit 1000 and the scanning galvanometer assembly 10011 can cooperate to form each target circular beam under the control of the control unit 1002. That is, the control unit 1002 controls the incident light beams corresponding to each preset wavelength emitted by the light source emitting unit 1000 according to the working state instructions, and projects each incident light beam through the scanning galvanometer assembly 10011 controlled by the control unit 1002 according to the working state instructions At the scanning position, the incident beam is a point-shaped spot at the scanning position. Through the 360° circular scanning of the point-shaped spot, the size of the target ring beam formed by scanning can be changed, that is, target ring beams of different sizes are formed.
  • the scanning galvanometer assembly 10011 includes a first dual-axis scanning galvanometer 100110 and a second dual-axis scanning galvanometer 100111.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident The light beam is projected to the first dual-axis scanning galvanometer 100110.
  • the control unit 1002 is configured to control the first dual-axis scanning galvanometer 100110 to deflect along the X axis by a first preset angle according to the corresponding working state instruction, so as to realize that each incident beam is deflected by the first preset angle along the X axis direction, and deflects The subsequent incident beams are projected to the second biaxial scanning galvanometer 100111.
  • the control unit 1002 is configured to control the second dual-axis scanning galvanometer 100111 to deflect a second preset angle along the Y-axis direction according to the working state instruction to form each target ring beam, and project each target ring beam to the test subject Location.
  • the scanning galvanometer assembly 10011 includes a first two-axis scanning galvanometer 100110 and a second two-axis scanning galvanometer 100111, and the control unit 1002 can control the first two-axis scanning galvanometer 100110 and the second two-axis scanning
  • the deflection direction of the galvanometer 100111 is changed to realize a 360° rotation of the incident beam, that is, to realize a circular scan.
  • the control unit 1002 can control the change of the deflection angles of the first dual-axis scanning galvanometer 100110 and the second dual-axis scanning galvanometer 100111 to achieve scanning to form a target ring beam with a variable size, that is, to form target circles of different sizes. Ring beam.
  • control unit 1002 can control the first dual-axis scanning galvanometer 100110 to deflect a first predetermined angle along the X-axis, so that each incident beam is deflected along the X-axis direction with the first dual-axis scanning galvanometer 100110 by a first predetermined angle.
  • the deflected incident beams are projected to the second biaxial scanning galvanometer 100111.
  • the control unit 1002 can control the second dual-axis scanning galvanometer 100111 to deflect a second preset angle along the Y-axis, so that the deflected incident beams are deflected by the second dual-axis scanning galvanometer 100111 along the Y-axis direction by a second preset angle. , Forming each target ring beam.
  • the above-mentioned first predetermined angle and the second predetermined angle may be configured to determine that the incident light beam is projected to the scanning position, and the incident light beam is a point-shaped spot at the scanning position.
  • the control unit 1002 can control the deflection angle and the deflection direction of the first dual-axis scanning galvanometer 100110 and the second dual-axis scanning galvanometer 100111 to realize the 360° rotation of the point-shaped light spot on the surface of the measured part, that is, to realize the circular scanning.
  • control unit 1002 can control the first dual-axis scanning galvanometer 100110 and the second dual-axis scanning galvanometer 100111 to deflect different deflection angles and deflection directions according to different working state instructions, so as to realize the formation of different sizes Target ring beam.
  • the size of the first biaxial scanning galvanometer 100110 may be smaller than the size of the second biaxial scanning galvanometer 100111.
  • the size of the galvanometer that the incident light beam projects first can be small, and only needs to be larger than the size of the incident light beam.
  • the galvanometer that the incident beam projects first can be called the first biaxial scanning galvanometer.
  • the rear-projected galvanometer can be called the second biaxial scanning galvanometer. Since the X-axis scanning speed is fast, and the low-mass galvanometer has low inertia, the first dual-axis scanning galvanometer can be configured as X-axis scanning.
  • the size of the second dual-axis scanning galvanometer needs to be larger than that of the first dual-axis scanning galvanometer.
  • the first dual-axis scanning galvanometer 100110 may be used as the first dual-axis scanning galvanometer.
  • the second dual-axis scanning galvanometer 100111 can be used as a second dual-axis scanning galvanometer. Based on the above, the first dual-axis scanning galvanometer 100110 may be configured as X-axis scanning.
  • the second dual-axis scanning galvanometer 100111 may be configured for Y-axis scanning.
  • the beam adjustment unit 1001 includes a rotating mirror 10012 and a first voltage focusing lens 10013.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength at the measured position of the object under test, and project each incident light beam according to the corresponding working state instruction To the rotating mirror 10012.
  • the control unit 1002 is configured to control the rotating mirror 10012 to rotate at different angles according to the corresponding operating state instructions to convert each incident light beam into a corresponding original ring light beam, and project each original ring light beam to the first voltage Focusing lens 10013.
  • the control unit 1002 is configured to control the first voltage focusing lens 10013 to adjust the inner radius or the outer radius of each original ring beam to the corresponding source detection distance according to the corresponding working state instruction, and obtain each target ring beam, and Project each target ring beam to the measured part.
  • the light source emitting unit 1000, the rotating mirror 10012, and the first voltage focusing lens 10013 can cooperate to form each target circular beam under the control of the control unit 1002.
  • the light source emitting unit 1000 can be configured to emit each incident light beam at each preset wavelength, and each incident light beam is converted into a corresponding original circular light beam by the rotating mirror 10012 to continue transmission, that is, the control unit 1002 can
  • the rotating mirror 10012 is controlled to realize a 360° rotating scan of each incident beam to form an original annular beam.
  • Each original ring beam passes through the first voltage focusing lens 10013 to form a corresponding target ring beam.
  • the size of the original circular beam is adjusted to achieve the formation of target circular beams of different sizes.
  • each operating state instruction is generated by the control unit 1000 according to the first state relationship table, and the first state relationship table stores the measured part of the object under test and each beam corresponding to each preset wavelength. Correspondence between the target circular beam and the working voltage of the first voltage focusing lens 10013.
  • the same original circular beams at different preset wavelengths pass through the first voltage focusing lens 10013 of the same working voltage.
  • the size of the target ring beam formed is different.
  • a target ring beam of the same size is formed, and the working voltage of the first voltage-adjusting lens 10013 needs to be adjusted according to the preset wavelength , That is, the working voltage of the first voltage focusing lens 10013 has a corresponding relationship with each target ring beam corresponding to each preset wavelength.
  • a first state relationship table can be constructed in advance.
  • the first state relationship table stores the target ring beams and the first voltage focusing lens 10013 corresponding to each preset wavelength for the measured part of the object to be measured. Correspondence between the working voltage.
  • the control unit 1002 may generate a working state instruction according to the first state relationship table, and then control the working state of the rotating mirror 10012, the first voltage focusing lens 10013, and the light source emitting unit 1000 according to the working state instruction.
  • the aforementioned beam adjustment unit 1001 may include a MEMS scanning mirror 10010.
  • the beam adjustment unit 1001 may include a scanning galvanometer assembly 10011.
  • the beam adjustment unit 1001 may include a rotating mirror 10012 and a first voltage focusing lens 10013. Under the control of the control unit 1002, the foregoing respectively cooperate with the light source emitting unit 1000 to realize the formation of a target circular beam by means of spot-shaped spot scanning.
  • the beam adjustment unit 1001 includes a micro lens array 10014 and an imaging lens 10015.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident
  • the light beams are projected to the micro lens array 10014, and the micro lens array 10014 is controlled to convert each incident light beam into a corresponding target ring beam according to the corresponding working state command, and each target ring beam is projected to the target ring beam through the imaging lens 10015 Measure the location.
  • the light source emitting unit 1000 and the micro lens array 10014 can cooperate to form each target circular light beam under the control of the control unit 1002. That is, the control unit 1002 controls the incident light beams corresponding to each preset wavelength emitted by the light source emitting unit 1000 according to the working state instructions, and the control unit 1002 controls the micro lens array 10014 to form a target ring with each beam according to the working state instructions.
  • the micro lens corresponding to the light beam is in the open state, and the micro lens in the open state reflects each incident light beam to form a corresponding target ring light beam. Through the imaging lens 10015, each target ring beam is projected to the measured part.
  • the micro lenses on the micro lens array 10014 in the open state it is possible to form target circular beams of different sizes.
  • the beam adjustment unit 1001 further includes a beam expander lens group 10016.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident The light beam is projected to the beam expander lens group 10016.
  • the beam expander lens group 10016 is configured to expand each incident light beam, and project the expanded incident light beams to the micro lens array 10014, so that the projection of each incident light beam on the micro lens array 10014 covers the micro lens Array 10014.
  • the control unit 1002 is configured to control the microlens array 10014 to convert each incident light beam into a corresponding target ring light beam according to the corresponding working state instruction, and project each target ring light beam to the measured part through the imaging lens 10015.
  • the micro lens array 10014 in order to realize the projection of the incident light beam on the micro lens array 10014, the micro lens array 10014 can be covered, and the beam expander lens group 10016 may be provided to expand the incident light beam through the beam expand lens group 10016.
  • each operating state instruction is generated by the control unit 1002 according to the second state relationship table, and the second state relationship table stores the measured part of the object under test, and each beam corresponding to each preset wavelength The corresponding relationship between the target ring beam and the micro lens in the micro lens array 10014 in the open state.
  • the target circular beams of the same size at different preset wavelengths have different sizes after passing through the imaging lens 10015. , That is, on the surface of the measured part, the original size of the target circular beam of the same size, due to the imaging lens 10015, has a different size.
  • micro-mirror has a corresponding relationship with each target ring beam corresponding to each preset wavelength.
  • a second state relationship table can be constructed in advance.
  • the second state relationship table stores the target ring beam corresponding to each preset wavelength for the measured part of the object to be measured. Correspondence between the state of the micro-lens.
  • the control unit 1002 may generate a working state instruction according to the second state relationship table, and then control the working state of the micro lens array 10014 and the light source emitting unit 1000 according to the working state instruction.
  • the beam adjustment unit 1001 includes a cone lens 10017 and a second voltage focusing lens 10018.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength at the measured position of the object under test, and project each incident light beam according to the corresponding working state instruction To the conical lens 10017.
  • the cone lens 10017 is configured to convert each incident beam into each cone beam, and project each cone beam to the second voltage focusing lens 10018, so as to be displayed as each before the second voltage focusing lens 10018 takes an image.
  • the original circular ring beam is configured to convert each incident beam into each cone beam, and project each cone beam to the second voltage focusing lens 10018, so as to be displayed as each before the second voltage focusing lens 10018 takes an image.
  • the control unit 1002 is configured to control the second voltage focusing lens 10018 to adjust the inner radius or the outer radius of each original ring beam to the corresponding source detection distance according to the corresponding operating state instruction, and obtain each target ring beam, and Project each target ring beam to the measured part.
  • the light source emitting unit 1000 and the second voltage focusing lens 10018 can cooperate to form each target circular beam under the control of the control unit 1002.
  • the light source emitting unit 1000 can be configured to emit incident light beams at various preset wavelengths. Each incident light beam passes through the cone lens 10017 and then is converted into a corresponding cone beam to continue transmission. Each cone beam is on the receiving surface. The upper projection is the corresponding original ring beam. Each original ring beam passes through the second voltage focusing lens 10018 to form a corresponding target ring beam.
  • target circular beams of different sizes can be formed.
  • the ring width of the target circular beam may be determined by the spot size of the incident beam.
  • each operating state instruction is generated by the control unit 1002 according to the third state relationship table, and the third state relationship table stores the measured part of the object under test and each beam corresponding to each preset wavelength. Correspondence between the target circular beam and the working voltage of the second voltage focusing lens 10018.
  • the same original circular beams at different preset wavelengths pass through the second voltage focusing lens 10018 of the same working voltage.
  • the size of the target ring beam formed is different.
  • a target ring beam of the same size is formed. It is necessary to adjust the working voltage of the second voltage focusing lens 10018 according to the preset wavelength That is, the working voltage of the second voltage focusing lens 10018 has a corresponding relationship with each target ring beam corresponding to each preset wavelength.
  • a third state relationship table can be constructed in advance.
  • the third state relationship table stores the target ring beams and the second voltage focusing lens 10018 corresponding to each preset wavelength for the measured part of the object to be measured. Correspondence between the working voltage.
  • the control unit 1002 may generate a working state instruction according to the third state relationship table, and then control the working state of the second voltage focusing lens 10018 and the light source emitting unit 1000 according to the working state instruction.
  • the aforementioned beam adjustment unit 1001 may include a micro lens array 10014 and an imaging lens 10015.
  • the beam adjustment unit 1001 may include a cone lens 10017 and a first voltage adjustment lens 10016. Under the control of the control unit 1002, the foregoing respectively cooperate with the light source emitting unit 1000 to realize the formation of a target circular beam by means of beam projection.
  • the photosensitive surface is in contact with the surface of the measured part, or the photosensitive surface is not in contact with the surface of the measured part.
  • contact detection may include the following two methods.
  • Method 1 The photosensitive surface is in contact with the surface of the tested part.
  • Method two the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in contact with the surface of the measured part. See Figure 7.
  • Non-contact detection can include the following two methods.
  • Method 1 The photosensitive surface is not in contact with the surface of the measured part, and the photosensitive surface does not pass through the light guide portion to obtain the first light intensity value. See Figure 3. In Figure 3, the photosensitive surface does not pass through the light guide portion to obtain the first light intensity value; mode two, the photosensitive surface is arranged at the first end of the light guide portion, and the second end of the light guide portion is not in contact with the surface of the measured part. See Figure 8.
  • the device 1 for determining the distance in the non-invasive detection of tissue components further includes a light guide 12.
  • the photosensitive surface is arranged at the first end of the light guide part 12, the second end of the light guide part 12 is in contact or non-contact with the surface of the measured part, and the first end of the light guide part 12 and the second end of the light guide part 12 are Opposite end face.
  • the photosensitive surface in order to achieve non-contact between the photosensitive surface and the surface of the measured part, may be provided on the first end of the light guide portion 12.
  • FIG. 28 is a schematic diagram of another type of non-contacting of the photosensitive surface and the surface of the tested part according to an embodiment of the present disclosure. If the photosensitive surface is arranged at the first end of the light guide part and the second end of the light guide part is not in contact with the surface of the tested part, it can be considered that the form of non-invasive detection of tissue components is non-contact detection.
  • FIG. 29 is a schematic diagram of another non-contacting of the photosensitive surface and the surface of the tested part according to an embodiment of the present disclosure. It should be noted that, for the description of arranging the photosensitive surface on the first end of the light guide portion 12, please refer to the corresponding part above, which will not be described in detail here.
  • the photosensitive surface is not in contact with the surface of the measured part.
  • the device 1 for determining the distance in the non-invasive detection of tissue components further includes a first light blocking portion 13.
  • the first light blocking portion 13 is disposed in the gap area between the photosensitive surface and the surface of the measured part, and the first light blocking portion 13 is in contact with the surface of the measured part.
  • the photosensitive surface is arranged inside the first light blocking portion 13.
  • the first light blocking portion 13 is integrated with the photosensitive surface or the first light blocking portion 13 is separate from the photosensitive surface.
  • the photosensitive surface if the photosensitive surface is not in contact with the surface of the measured part, surface reflected light may be generated. Based on this, in order to further improve the detection accuracy, it is necessary to shield the interference light, and the following methods may be adopted.
  • the device can also be provided with a first light blocking part 13, specifically the first light blocking part 13 is disposed in the gap area between the photosensitive surface and the surface of the measured part, and the first light blocking part 13 is disposed on the photosensitive surface.
  • the photosensitive surface is located inside the first light blocking portion 13. At the same time, it is ensured that the first light blocking portion 13 is in contact with the surface of the measured part.
  • FIG. 30 is another schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • the first light blocking portion 13 may be integrated with the photosensitive surface, that is, the first light blocking portion 13 may serve as the periphery of the photosensitive surface, which is integrated with the photosensitive surface.
  • the first light blocking portion 13 may also be separate from the photosensitive surface. The above can be set according to the actual situation, which is not specifically limited here.
  • the light-sensitive surface can only acquire diffusely scattered light. Since the diffusely scattered light carries effective information, the detection accuracy is further improved.
  • the device 1 for determining the distance in the non-invasive detection of tissue components further includes a second light blocking portion 14.
  • the second light blocking portion 14 is provided in the gap area between the light guiding portion 12 and the surface of the measured part, the first end of the second light blocking portion 14 is in contact with the second end of the light guiding portion 12, and the second light blocking portion
  • the second end of 14 is in contact with the surface of the measured part, and the second end of the second light blocking portion 14 and the first end of the second light blocking portion 14 are opposite end surfaces.
  • the form of non-invasive detection of tissue components is non-contact ⁇ Type detection. Since non-contact detection is used, surface reflection light may be generated. Therefore, in order to further improve the detection accuracy, it is necessary to shield the interference light. The following methods can be adopted.
  • the device 1 for determining the distance in the non-invasive detection of tissue components can also be provided with a second light blocking portion 14 to contact the first end of the second light blocking portion 14 with the second end of the light guiding portion 12 to the second light blocking portion 14 The second end is in contact with the surface of the measured part to ensure that the interference light is difficult to enter the light guide portion 12 and then be received by the photosensitive surface.
  • FIG. 31 is another schematic diagram of shielding interference light according to an embodiment of the present disclosure.
  • the light-sensitive surface can only acquire diffusely scattered light. Since the diffusely scattered light carries effective information, the detection accuracy is further improved.
  • FIG. 20 is a schematic structural diagram of a distance determining device in the non-invasive detection of tissue components according to an embodiment of the present disclosure. This embodiment can be suitably configured to improve the detection accuracy of the concentration of the tissue component to be tested.
  • the device 1 for determining the distance in the non-invasive detection of tissue components includes a second acquiring module 15 and a second determining module 16.
  • the structure and working principle will be described below in conjunction with the drawings.
  • the second acquisition module 15 is configured to acquire the tissue optical parameter at each preset wavelength and the tissue optical parameter change relationship caused by the change in the concentration of the tissue component to be measured for the measured part of the measured object.
  • the number is at least one.
  • the second determining module 16 is configured to determine each measurement distance and/or each reference distance according to the relationship between the tissue optical parameter at each preset wavelength and the tissue optical parameter change caused by the change in the concentration of the tissue component to be measured.
  • the specific processing process of the second acquisition module 15 and the second determination module 16 can be referred to the description of the corresponding part of the distance determination method in the non-invasive detection of tissue components, which will not be described in detail here.
  • FIG. 32 is a schematic structural diagram of a tissue component non-invasive detection device according to an embodiment of the present disclosure. This embodiment can be suitably configured to improve the detection accuracy of the tissue component concentration to be measured.
  • the tissue component non-invasive detection device 2 includes a third acquisition module 17 and a third determination module 18.
  • the structure and working principle will be described below in conjunction with the drawings.
  • the third acquiring module 17 is configured to acquire the second light intensity measurement value at the measurement distance of each preset wavelength and/or the second light intensity reference value at the reference distance for the measured part of the object under test , wherein each measured distance and each reference distance are determined by the distance determining device in the non-invasive detection of tissue components according to the embodiment of the present disclosure, and the number of preset wavelengths is at least one.
  • the third determining module 18 is configured to determine the concentration of the tissue component to be measured according to the second light intensity measurement value and/or the second light intensity reference value at each preset wavelength.
  • the specific processing process of the third acquisition module 17 and the third determination module 18 can be referred to the description of the corresponding part of the non-invasive detection method of tissue components above, which will not be described in detail here.
  • the third acquisition module 17 includes a second formation sub-module 170 and a second acquisition sub-module 171.
  • the second forming sub-module 170 is configured to form a measuring ring beam and/or a reference ring beam corresponding to each preset wavelength on the surface of the measured part of the measured object, on the surface of the measured part, Among them, the inner radius or outer radius of each measurement ring beam is the corresponding measurement distance, the inner radius or outer radius of each reference ring beam is the corresponding reference distance, each measurement ring beam and each reference ring The beam is at the same geometric center.
  • the second acquiring sub-module 171 is configured to acquire, based on the photosensitive surface corresponding to the geometric center, the second light intensity measurement value emitted from the surface of the measured part after each measuring ring beam passes through the measured part, and/or , The second light intensity reference value emitted from the surface of the tested part after each reference ring beam passes through the tested part.
  • the specific processing process of the second forming sub-module 170 and the second obtaining sub-module 171 can be referred to the description of the corresponding part of the non-invasive detection method of tissue components above, which will not be described in detail here.
  • the second forming sub-module 170 includes a light source emitting unit 1000, a beam adjusting unit 1001, and a control unit 1002.
  • the control unit 1002 may be respectively communicatively connected with the light source emitting unit 1000 and the beam adjusting unit 1001.
  • the control unit 1002 is configured to control the light source emitting unit 1000 and the beam adjusting unit 1001 to cooperate to form a beam corresponding to each preset wavelength on the surface of the measured part of the measured object according to the corresponding working state instruction Measuring ring beam and/or a reference ring beam.
  • the working state instruction may be an instruction to control the working state of the light source emitting unit 1000 and the beam adjusting unit 1001.
  • the control unit 1002 can make the light source emitting unit 1000 and the beam adjustment unit 1001 cooperate together according to the corresponding operating state instructions to form a beam corresponding to each preset wavelength Measuring ring beam and/or a reference ring beam.
  • the above-mentioned control unit 1002 cooperates with the light source emitting unit 1000 and the beam adjusting unit 1001 according to the corresponding operating state instructions to form a measuring ring beam and/or a reference ring beam at each preset wavelength.
  • the beam adjustment unit 1001 may include a MEMS scanning mirror 10010.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident
  • the light beam is projected to the MEMS scanning mirror 10010, and the MEMS scanning mirror 10010 is controlled to convert each incident light beam into a corresponding measurement ring beam and/or reference ring beam according to the corresponding operating state command, and each beam is measured And/or each reference ring beam is projected to the measured part.
  • the light source emitting unit 1000 and the MEMS scanning mirror 10010 can cooperate to form each measurement ring beam and/or each reference ring beam under the control of the control unit 1002.
  • the MEMS scanning mirror 10010 may be a two-dimensional MEMS scanning mirror. That is, the control unit 1002 synchronously controls the light source emitting unit 1000 and the MEMS scanning mirror 10010, and adopts a progressive scan method to realize a two-dimensional scanned image composed of preset pixels. If the trajectory formed by the preset pixels is a measuring circle, then The two-dimensional scanned image is the measurement circle image. And, if the trajectory formed by the preset pixel points is a reference circle, the two-dimensional scanned image is the reference circle image.
  • the scanning method described above allows the display time and space coordinates of the preset pixel points in the measurement ring image to be determined, and the display time and space coordinates of the preset pixel points in the reference ring beam are determined.
  • the spatial coordinates of the preset pixel points in the measured annulus image and the spatial coordinates of the preset pixel points in the reference annulus image are determined by the deflection angle of the MEMS scanning mirror 10010.
  • the display time of the preset pixel points in the measured ring image and the spatial coordinates of the preset pixels in the reference ring image are determined by the light source emitting unit 1000.
  • the light source emitting unit 1000 and the MEMS scanning mirror 10010 can be synchronously controlled by the control unit 1002 to realize the correspondence between the display time of the preset pixel point and the space coordinate.
  • the preset pixel points are different, the corresponding measurement circle image and reference circle image will be formed.
  • Each measurement ring image and each reference ring image are respectively projected to the measured part, that is, each measurement ring light beam and each reference ring light beam are formed.
  • the spatial coordinates and display time of the above-mentioned preset pixel points may be embodied in the working state instruction.
  • the beam adjustment unit 1001 includes a scanning galvanometer assembly 10011.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident
  • the light beam is projected to the scanning galvanometer assembly 10011, and the scanning galvanometer assembly 10011 is controlled to convert each incident light beam into a corresponding measurement ring beam and/or reference ring beam according to the corresponding working state instruction, and each beam is measured
  • the ring beam and/or each reference ring beam is projected to the measured part.
  • the light source emitting unit 1000 and the scanning galvanometer assembly 10011 can cooperate to form each measurement ring beam and/or each reference ring beam under the control of the control unit 1002. That is, the control unit 1002 controls a measuring circular beam and/or a reference circular beam corresponding to each preset wavelength emitted by the light source emitting unit 1000 according to the working state instruction, and the control unit 1002 is instructed according to the working state
  • the controlled scanning galvanometer assembly 10011 projects each incident light beam to the scanning position.
  • the incident light beam is a point-shaped spot at the scanning position. Through the 360° circular scanning of the point-shaped spot, the size of the circular beam formed by the scanning can be changed. That is, the corresponding measurement ring beam and/or reference ring beam are formed.
  • the scanning galvanometer assembly 10011 includes a first dual-axis scanning galvanometer 100110 and a second dual-axis scanning galvanometer 100111.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident The light beam is projected to the first dual-axis scanning galvanometer 100110.
  • the control unit 1002 is configured to control the first dual-axis scanning galvanometer 100110 to deflect along the X axis by a first preset angle according to the corresponding working state instruction, so as to realize that each incident beam is deflected by the first preset angle along the X axis direction, and deflects The subsequent incident beams are projected to the second biaxial scanning galvanometer 100111.
  • the control unit 1002 is configured to control the second dual-axis scanning galvanometer 100111 to deflect a second preset angle along the Y-axis direction according to the working state command to form each measurement ring beam and/or each reference ring beam, and combine each The measuring circle beam and/or each reference circle beam are projected to the measured part.
  • the scanning galvanometer assembly 10011 includes a first two-axis scanning galvanometer 100110 and a second two-axis scanning galvanometer 100111
  • the control unit 1002 can control the first two-axis scanning galvanometer 100110 and the second two-axis scanning Galvo mirror 100111 to achieve 360° deflection of the incident beam.
  • the control unit 1002 can control the first dual-axis scanning galvanometer 100110 to deflect a first predetermined angle along the X-axis, so that each incident beam is deflected along the X-axis direction with the first dual-axis scanning galvanometer 100110 by a first predetermined angle.
  • the deflected incident beams are projected to the second biaxial scanning galvanometer 100111.
  • the control unit 1002 can control the second dual-axis scanning galvanometer 100111 to deflect a second preset angle along the Y-axis, so that the deflected incident beams are deflected by the second dual-axis scanning galvanometer 100111 along the Y-axis direction by a second preset angle.
  • the above-mentioned first predetermined angle and the second predetermined angle may be configured to determine that the incident light beam is projected to the scanning position, and the incident light beam is a point-shaped spot at the scanning position.
  • the control unit 1002 can control the deflection angle and the deflection direction of the first dual-axis scanning galvanometer 100110 and the second dual-axis scanning galvanometer 100111 to realize the 360° rotation of the point-shaped light spot on the surface of the measured part, that is, to realize the circular scanning.
  • scanning is realized to form a ring beam with a variable size, that is, a corresponding measurement ring beam and/or reference ring beam are formed.
  • control unit 1002 can control the first dual-axis scanning galvanometer 100110 and the second dual-axis scanning galvanometer 100111 to deflect different deflection angles and deflection directions according to different working state instructions, so as to realize the formation of each beam measurement The ring beam and/or each reference ring beam.
  • the size of the first biaxial scanning galvanometer 100110 may be smaller than the size of the second biaxial scanning galvanometer 100111.
  • the size of the galvanometer that the incident light beam projects first can be small, and only needs to be larger than the size of the incident light beam.
  • the galvanometer that the incident beam projects first can be called the first biaxial scanning galvanometer.
  • the rear-projected galvanometer can be called the second biaxial scanning galvanometer. Since the X-axis scanning speed is fast, and the low-mass galvanometer has low inertia, the first dual-axis scanning galvanometer can be configured as X-axis scanning.
  • the size of the second dual-axis scanning galvanometer needs to be larger than that of the first dual-axis scanning galvanometer.
  • the first dual-axis scanning galvanometer 100110 may be used as the first dual-axis scanning galvanometer.
  • the second dual-axis scanning galvanometer 100111 can be used as a second dual-axis scanning galvanometer. Based on the above, the first dual-axis scanning galvanometer 100110 may be configured as X-axis scanning.
  • the second dual-axis scanning galvanometer 100111 may be configured for Y-axis scanning.
  • the beam adjustment unit 1001 includes a rotating mirror 10012 and a first voltage focusing lens 10013.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength at the measured position of the object under test, and project each incident light beam according to the corresponding working state instruction To the rotating mirror 10012.
  • the control unit 1002 is configured to control the rotating mirror 10012 to rotate at different angles according to the corresponding operating state instructions to convert each incident light beam into a corresponding original ring light beam, and project each original ring light beam to the first voltage Focusing lens 10013.
  • the control unit 1002 is configured to control the first voltage focusing lens 10013 to adjust the inner radius or the outer radius of each original circular ring beam to a corresponding measurement distance according to the corresponding operating state instruction to obtain each measurement circular beam, and/ Or, adjust the inner radius or outer radius of each original ring beam to the corresponding reference distance to obtain each reference ring beam, and project each measurement ring beam and/or each reference ring beam to the target Measure the location.
  • the light source emitting unit 1000, the rotating mirror 10012, and the first voltage focusing lens 10013 can be controlled by the control unit 1002 to cooperate to form each measurement ring beam and/or each reference ring beam .
  • the light source emitting unit 1000 can be configured to emit incident light beams at various preset wavelengths, and each incident light beam is converted into a corresponding original circular beam by the rotating mirror 10012 and continues to be transmitted, that is, the control unit 1002 can control the rotation
  • the mirror 10012 realizes 360° rotation scanning of each incident beam to form an original circular beam.
  • Each original ring beam passes through the first voltage focusing lens 10013 to form a corresponding measurement ring beam and/or reference ring beam.
  • the size of the original circular ring beam is adjusted to realize the formation of each measurement circular beam and/or each reference circular beam.
  • each operating state instruction is generated by the control unit 1000 according to the fourth state relationship table, and the fourth state relationship table stores the measured part of the object under test and each beam corresponding to each preset wavelength. Measure the correspondence between the annular light beam and the working voltage of the first voltage focusing lens 10013, and/or the correspondence between each reference annular light beam and the working voltage of the first voltage focusing lens 10013.
  • a fourth state relationship table can be constructed in advance, and the fourth state relationship table stores the measured part of the object under test, and the measurement ring beams and the first voltage corresponding to each preset wavelength.
  • the control unit 1002 may generate a working state instruction according to the fourth state relationship table, and then control the working state of the rotating mirror 10012, the first voltage focusing lens 10013 and the light source emitting unit 1000 according to the working state instruction.
  • the aforementioned beam adjustment unit 1001 may include a MEMS scanning mirror 10010.
  • the beam adjustment unit 1001 may include a scanning galvanometer assembly 10011.
  • the beam adjustment unit 1001 may include a rotating mirror 10012 and a first voltage focusing lens 10013. Under the control of the control unit 1002, the above-mentioned respectively cooperate with the light source emitting unit 1000 to realize the formation of the measurement circular beam and/or the reference circular beam by means of spot-shaped spot scanning.
  • the beam adjustment unit 1001 includes a micro lens array 10014 and an imaging lens 10015.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident
  • the light beam is projected to the micro lens array 10014, and the micro lens array 10014 is controlled to convert each incident light beam into a corresponding measurement ring light beam and/or reference ring light beam according to the corresponding working state command, and each beam is converted through the imaging lens 10015
  • the measuring ring beam and/or each reference ring beam are projected to the measured part.
  • the light source emitting unit 1000 and the micro lens array 10014 can cooperate to form each measurement ring beam and/or each reference ring beam under the control of the control unit 1002. That is, the control unit 1002 controls the incident light beams corresponding to each preset wavelength emitted by the light source emitting unit 1000 according to the work state instructions, and the control unit 1002 controls the micro lens array 10014 to form and each beam measurement ring according to the work state instructions.
  • the light beam and/or the micro lens corresponding to each reference ring beam is in the open state, and the micro lens in the open state reflects each incident light beam to form a corresponding measurement ring beam and/or each reference ring beam.
  • each of the measuring circular beams and/or each of the reference circular beams is projected to the measured part.
  • the above-mentioned control of the micro lens on the micro lens array 10014 in the open state realizes the formation of each measuring ring light beam and/or each reference ring light beam.
  • the beam adjustment unit 1001 further includes a beam expander lens group 10016.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength on the surface of the measured part on the surface of the measured part according to the corresponding working state instructions, and to make each beam incident The light beam is projected to the beam expander lens group 10016.
  • the beam expander lens group 10016 is configured to expand each incident light beam, and project the expanded incident light beams to the micro lens array 10014, so that the projection of each incident light beam on the micro lens array 10014 covers the micro lens Array 10014.
  • the control unit 1002 is configured to control the micro lens array 10014 to convert each incident light beam into a corresponding measurement ring light beam and/or reference ring light beam according to the corresponding working state instruction, and to convert each measurement ring light beam through the imaging lens 10015 And/or each reference ring beam is projected to the measured part.
  • the micro lens array 10014 in order to realize the projection of the incident light beam on the micro lens array 10014, the micro lens array 10014 can be covered, and the beam expander lens group 10016 may be provided to expand the incident light beam through the beam expand lens group 10016.
  • each operating state instruction is generated by the control unit 1002 according to the fifth state relationship table.
  • the fifth state relationship table stores the measured part of the object under test and each beam corresponding to each preset wavelength.
  • the correspondence relationship between the annular light beam and the micro lens in the micro lens array 10014 in the open state, and/or the correspondence between each reference annular light beam and the micro lens in the open state in the micro lens array 10014 is measured.
  • a fifth state relationship table can be constructed in advance, and the fifth state relationship table stores the measurement ring beams and micro lens arrays corresponding to each preset wavelength for the measured part of the object to be measured. Correspondence between the microlenses in the open state in 10014, and/or the correspondence between each reference ring beam and the microlenses in the open state in the microlens array 10014.
  • the control unit 1002 can generate a working state instruction according to the fifth state relationship table, and then control the working state of the micro lens array 10014 and the light source emitting unit 1000 according to the working state instruction.
  • the beam adjustment unit 1001 includes a cone lens 10017 and a second voltage focusing lens 10018.
  • the control unit 1002 is configured to control the light source emitting unit 1000 to emit incident light beams corresponding to each preset wavelength at the measured position of the object under test, and project each incident light beam according to the corresponding working state instruction To the conical lens 10017.
  • the cone lens 10017 is configured to convert each incident beam into each cone beam, and project each cone beam to the second voltage focusing lens 10018, so as to be displayed as each before the second voltage focusing lens 10018 takes an image.
  • the original circular ring beam is configured to convert each incident beam into each cone beam, and project each cone beam to the second voltage focusing lens 10018, so as to be displayed as each before the second voltage focusing lens 10018 takes an image.
  • the control unit 1002 is configured to control the second voltage focusing lens 10018 to adjust the inner radius or the outer radius of each original ring beam to the corresponding measurement distance according to the corresponding working state instruction, and to obtain each measurement ring beam, and/ Or, adjust the inner radius or outer radius of each original ring beam to the corresponding reference distance to obtain each reference ring beam, and project each measurement ring beam and/or each reference ring beam to the target Measure the location.
  • the light source emitting unit 1000 and the second voltage focusing lens 10018 may cooperate to form each measurement ring beam and/or each reference ring beam under the control of the control unit 1002.
  • the light source emitting unit 1000 can be configured to emit incident light beams at various preset wavelengths. Each incident light beam passes through the cone lens 10017 and then is converted into a corresponding cone beam to continue transmission. Each cone beam is on the receiving surface. The upper projection is the corresponding original ring beam. Each original ring beam passes through the second voltage focusing lens 10018 to form a corresponding measurement ring beam and/or reference ring beam.
  • each measurement ring beam and/or each reference ring beam can be formed.
  • each operating state instruction is generated by the control unit 1002 according to the sixth state relationship table, and the sixth state relationship table stores the measured part of the object under test, and each beam corresponding to each preset wavelength The corresponding relationship between the annular light beam and the operating voltage of the second voltage focusing lens 10018, and/or the correspondence between each reference annular light beam and the operating voltage of the second voltage focusing lens 10018 is measured.
  • a sixth state relationship table can be constructed in advance, and the sixth state relationship table stores the measured part of the object to be measured, and the measurement ring beams and the second voltage corresponding to each preset wavelength.
  • the control unit 1002 may generate a working state instruction according to the sixth state relationship table, and then control the working state of the second voltage focusing lens 10018 and the light source emitting unit 1000 according to the working state instruction.
  • the third determination module 18 includes a differential numerator module and a determination sub-module.
  • the differential molecule module is configured to perform a differential operation on the second light intensity measurement value at the preset wavelength and the second light intensity reference value for each of the preset wavelengths to obtain a light intensity difference value.
  • the determining sub-module is configured to determine the concentration of the tissue component to be tested according to the light intensity difference value at each preset wavelength.
  • the specific processing process of the differential molecule module and the determining sub-module can be referred to the description of the corresponding part of the non-invasive detection method of tissue components above, which will not be described in detail here.
  • the photosensitive surface is in contact with the surface of the measured part, or the photosensitive surface is not in contact with the surface of the measured part.
  • contact detection may include the following two methods.
  • Method 1 The photosensitive surface is in contact with the surface of the tested part. Refer to Figure 16; Method two, the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in contact with the surface of the measured part. See Figure 7.
  • Non-contact detection can include the following two methods.
  • Method 1 The photosensitive surface is not in contact with the surface of the measured part, and the photosensitive surface does not pass through the light guide portion to obtain the first light intensity value. See Fig. 15; Mode two, the photosensitive surface is arranged at the first end of the light guide part, and the second end of the light guide part is in non-contact with the surface of the tested part. See Figure 8.
  • the tissue component non-invasive detection device 2 further includes a light guide part 12.
  • the photosensitive surface is arranged at the first end of the light guide part 12, the first end of the light guide part 12 is in non-contact with the surface of the measured part, and the second end of the light guide part 12 is in contact or non-contact with the surface of the measured part.
  • the first end of the light portion 12 and the second end of the light guide portion 12 are opposite end surfaces.
  • the photosensitive surface is not in contact with the surface of the measured part.
  • the tissue component non-invasive detection device 2 further includes a first light blocking portion 13.
  • the first light blocking portion 13 is disposed in the gap area between the photosensitive surface and the surface of the measured part, and the first light blocking portion 13 is in contact with the surface of the measured part.
  • the photosensitive surface is arranged inside the first light blocking portion 13.
  • the first light blocking portion 13 is integrated with the photosensitive surface or the first light blocking portion 13 is separate from the photosensitive surface.
  • the specific description of the first light blocking portion 13 can be referred to the corresponding part above, which will not be repeated here.
  • the tissue component non-invasive detection device 2 further includes a second light blocking portion 14.
  • the second light blocking portion 14 is provided in the gap area between the light guiding portion 12 and the surface of the measured part, the first end of the second light blocking portion 14 is in contact with the second end of the light guiding portion 12, and the second light blocking portion
  • the second end of 14 is in contact with the surface of the measured part, and the second end of the second light blocking portion 14 and the first end of the second light blocking portion 14 are opposite end surfaces.
  • the description of the second light blocking portion 14 can be referred to the corresponding part above, which will not be described in detail here.
  • FIG. 36 is a schematic structural diagram of a wearable device according to an embodiment of the present disclosure. This embodiment can be suitably configured to improve the detection accuracy of the concentration of the tissue component to be measured.
  • the wearable device 3 includes a body 30 and the tissue component non-invasive detection device 2 according to the embodiment of the present disclosure.
  • the tissue component non-invasive detection device 2 is arranged on the main body 30, and the tissue component non-invasive detection device 2 includes a third acquisition module 17 and a third determination module 18.
  • the structure and working principle will be described below in conjunction with the drawings.
  • the wearable device 3 is worn on the measured part.
  • the third acquiring module 17 is configured to acquire the second light intensity measurement value at the measurement distance of each preset wavelength and/or the second light intensity reference value at the reference distance for the measured part of the object under test , wherein each measurement distance and each reference distance are determined according to the device according to the embodiment of the present disclosure, and the number of preset wavelengths is at least one.
  • the third determining module 18 is configured to determine the concentration of the tissue component to be measured according to the second light intensity measurement value and/or the second light intensity reference value at each preset wavelength.
  • the tissue component non-invasive detection device 2 can be set on the main body 30.
  • the wearable device 3 can be worn on the tested part.
  • the tissue component non-invasive detection device 2 is used for detection, it is susceptible to the influence of the detection conditions, which affects the detection accuracy. Therefore, in order to ensure the stability of the detection conditions and further improve the detection accuracy, the tissue component non-invasive detection device 2 can be used for detection. Fixed so that the positional relationship between the tested part and the tissue component non-invasive detection device 2 is a preset relationship.
  • the position can be fixed by arranging the tissue component non-invasive detection device 1 on the main body 30, which can ensure the stability of the detection conditions, and thus can improve the detection accuracy.
  • the structure and working principle of the tissue component non-invasive detection device 2 can be referred to the description of the non-invasive detection device 2 above, and will not be described in detail here.
  • the wearable device 3 may further include a display module, which may be communicatively connected with the third determination module 18, the third determination module 18 may send the concentration of the tissue component to be measured to the display module, and the display module may The concentration of the tissue component to be tested is displayed, so that the tested object can obtain the concentration of the tissue component to be tested through the display module.
  • the wearable device 3 may also include a voice module, which may be communicatively connected with the third determination module 18, and the third determination module 18 may send the concentration of the tissue component to be tested to the voice module, and the voice module may be based on the tissue component to be tested. Generate a voice command and play the voice command so that the tested object can learn the concentration of the tissue component to be tested.
  • the detection device can be set on a wearable device, which can be easily worn and fixed on the tested part, which can ensure the stability of the detection conditions. , Improve the stability of the detection conditions, in addition, also achieve portable detection.
  • the measured distance and/or reference distance corresponding to each preset wavelength can be accurately obtained for the measured part of the object to be measured
  • the first measurement distance and/or reference distance can be obtained according to the accurately determined measurement distance and/or reference distance.
  • Accurate determination of the second light intensity measurement value and/or the second light intensity reference value Since the concentration of the tissue component to be tested is determined according to the accurately determined second light intensity measurement value and/or the second light intensity reference value, the detection accuracy is improved.
  • FIG. 37 is a schematic structural diagram of a tissue component non-invasive detection system according to an embodiment of the present disclosure. This embodiment can be suitably configured to improve the detection accuracy of the tissue component concentration to be measured.
  • the tissue component non-invasive detection system includes the wearable device 3 and the terminal 4 described in the embodiment of the present disclosure.
  • the wearable device 3 includes a main body 30 and a tissue component non-invasive detection device 2, and the tissue component non-invasive detection device 2 is disposed on the main body 30.
  • the tissue component non-invasive detection device 2 includes a third acquisition module 17 and a third determination module 18.
  • the third determining module 18 may be respectively communicatively connected with the third acquiring module 17 and the terminal 4.
  • the wearable device 3 is worn on the measured part.
  • the third acquiring module 17 is configured to acquire the second light intensity measurement value at the measurement distance of each preset wavelength, and/or the second light intensity measurement value at the reference distance for the measured part of the object under test , wherein each measurement distance and each reference distance are determined according to the device according to the embodiment of the present disclosure, and the number of preset wavelengths is at least one.
  • the third determining module 18 is configured to process each second light intensity measurement value at each preset wavelength and/or each second light intensity reference value to obtain the processed second light intensity at each preset wavelength
  • the measured value and/or each second light intensity reference value, and each processed second light intensity measurement value and/or each light intensity reference value at each preset wavelength are sent to the terminal 4.
  • the terminal 4 is configured to determine the concentration of the tissue component to be measured according to the processed second light intensity measurement values at each preset wavelength and/or each second light intensity reference value.
  • the wearable device 3 and the terminal 4 may be used in cooperation to determine the concentration of the tissue component to be tested. That is, the third determining module 18 processes each second light intensity measurement value at each preset wavelength and/or each second light intensity reference value to obtain the processed second light intensity measurement value at each preset wavelength And/or each second light intensity reference value, and send each processed second light intensity measurement value and/or each light intensity reference value at each preset wavelength to the terminal 4, and the terminal 4 can send the processed respective Each second light intensity measurement value at the preset wavelength and/or each second light intensity reference value determines the concentration of the tissue component to be tested.
  • the processing operations of the third determination module 18 on each second light intensity measurement value and/or each second light intensity reference value may include current-voltage conversion and amplification, analog-to-digital conversion, and the like.
  • the terminal 4 can use the same method as the non-invasive detection method of tissue components described in the embodiments of the present disclosure, and determine the concentration of the tissue component to be tested according to the processed second light intensity measurement values and/or the second light intensity reference values. , I won’t go into details here.
  • the structure and working principle of the wearable device 3 please refer to the description of the wearable device 3 above, which will not be described in detail here.
  • the terminal 4 may also display the concentration of the component to be tested, so that the tested object can know the concentration of the tissue component to be tested.
  • the terminal 4 may also generate a voice command, which includes the concentration of the tissue component to be tested, and broadcasts the voice command, so that the tested object can learn the concentration of the tissue component to be tested.
  • a cloud server and the wearable device 3 may also be used to determine the concentration of the tissue component to be tested.

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Abstract

本公开提供了组织成分无创检测方法、装置、***及可穿戴设备,该方法包括:针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,其中,源探距离的数量为至少两个,预设波长的数量为至少一个;以及,根据待测组织成分浓度变化引起的光强变化量的绝对值,从与预设波长对应的各第一光强值中确定第一光强测量值和/或第一光强参考值,将与第一光强测量值对应的源探距离作为测量距离,将与第一光强参考值对应的源探距离作为参考距离,其中,第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值。

Description

组织成分无创检测方法、装置、***及可穿戴设备 技术领域
本公开属于光谱检测技术领域,尤其涉及组织成分无创检测方法、装置、***及可穿戴设备。
背景技术
近红外光谱检测方法具有快速、无创伤和信息多维化等特点,因此,通常采用近红外光谱检测方法进行组成成分检测,其中,组织成分包括血糖、脂肪和白细胞等。但是,由于待测组织成分本身吸收较弱,被测对象自身的待测组织成分浓度的变化幅度也不大,因此,待测的有效信号较弱。并且,其极易受到人体背景以及测量环境变化的干扰,上述干扰甚至会掩盖待测组织成分的信息,进而使得在大的背景噪声干扰下,微弱信号的提取难以实现。
为了解决上述问题,提出了基于浮动基准理论的参考测量方法。即针对待测组织成分而言,存在某一源探距离,由于吸收作用和散射作用对漫散射光强的影响程度相同而方向相反,因此,导致与该源探距离对应的出射位置所出射的漫散射光强值对待测组织成分浓度变化的灵敏度为零。可以将具有上述特点的出射位置称为参考位置(或称基准位置),相应的源探距离为参考距离。同样的,针对待测组织成分而言,也存在某一源探距离,在与该源探距离对应的出射位置所出射的漫散射光强值对待测组织成分浓度变化的灵敏度最大。可将具有上述特点的出射位置称为测量位置,相应的源探距离为测量距离。由于与参考距离对应的漫散射光强值反映了检测过程中除待测组织成分的浓度变化以外,由其它干扰所引起的响应,而与测量距离对应的漫散射光强值反映了待测组织成分的响应,以及,除待测组织成分外的其它干扰的响应,因此,上述要求准确确定参考位置和/或测量位置。
在相关技术中,通常采用中心入射,距入射光束的中心的有限个源探距离处设置感光面的方式来接收从被测部位的表面所出射的漫反射光强值。其中,上述有限个源探距离是根据大多数被测对象的平均参数确定的。在此基础上,进一步确定将哪个源探距离处作为参考距离,以及,将哪个源探距离作为测量距离。
在实现本公开构思的过程中,发明人发现相关技术中至少存在如下问题,采用相关技术的检测精度不高。
发明内容
本公开的一个方面提供了一种组织成分无创检测中距离确定方法,该方法包括:
针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,其中, 所述源探距离的数量为至少两个,所述预设波长的数量为至少一个;以及
根据待测组织成分浓度引起的光强变化量的绝对值,从与所述预设波长对应的各个所述第一光强值中确定第一光强测量值和/或第一光强参考值,将与所述第一光强测量值对应的源探距离作为测量距离,将与所述第一光强参考值对应的源探距离作为参考距离,其中,所述第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,所述第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,所述待测组织成分浓度变化引起的光强变化量为所述第一光强值与对应的预设的光强预设值之间的变化量。
本公开的另一方面提供了一种组织成分无创检测中距离确定方法,该方法包括:
针对被测对象的被测部位,获取在每个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,其中,所述预设波长的数量为至少一个;以及
根据各个所述预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定各个测量距离和/或各个参考距离。
本公开的另一方面提供了一种组织成分无创检测方法,该方法包括:
针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个所述测量距离和每个所述参考距离是根据如上所述的组织成分无创检测中距离确定方法所确定的,所述预设波长的数量为至少一个;以及
根据各个所述预设波长下的所述第二光强测量值和/或所述第二光强参考值,确定待测组织成分的浓度。
本公开的另一方面提供了一种组织成分无创检测装置,该装置包括:
第一获取模块,配置为针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,其中,所述源探距离的数量为至少两个,所述预设波长的数量为至少一个;以及
第一确定模块,配置为根据待测组织成分浓度变化引起的光强变化量的绝对值,从与所述预设波长对应的各所述第一光强值中确定第一光强测量值和/或第一光强参考值,将与所述第一光强测量值对应的源探距离作为测量距离,将与所述第一光强参考值对应的源探距离作为参考距离,其中,所述第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,所述第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,所述待测组织成分浓度变化引起的光强变化量为所述第一光强值与对应的预设的光强预设值之间的变化量。
本公开的另一方面提供了一种组织成分无创检测中距离确定装置,该装置包括:
第二获取模块,配置为针对被测对象的被测部位,获取在每个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,其中,所述预设波长的数量为至少一个;以及
第二确定模块,配置为根据各个所述预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定各个测量距离和/或各个参考距离。
本公开的另一方面提供了一种组织成分无创检测装置,该装置包括:
第三获取模块,配置为针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个所述测量距离和每个所述参考距离是根据如上所述的组织成分无创检测中距离确定装置所确定的,所述预设波长的数量为至少一个;以及
第三确定模块,配置为根据各个所述预设波长下的所述第二光强测量值和/或所述第二光强参考值,确定待测组织成分的浓度。
本公开的另一方面提供了一种可穿戴设备,该设备包括:本体和本公开如上所述的组织成分无创检测装置;所述组织成分无创检测装置设置于所述本体上;
所述可穿戴设备佩戴于被测部位。
本公开的另一方面提供了一种组织成分无创检测***,该***包括本公开如上所述的可穿戴设备和终端;所述第三确定模块分别与所述第三获取模块和所述终端通信连接;
所述可穿戴设备佩戴于被测部位;
所述第三获取模块,配置为针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个所述测量距离和每个所述参考距离是根据如上所述的组织成分无创检测中距离确定装置所确定的,所述预设波长的数量为至少一个;
所述第三确定模块,配置为对各个所述预设波长下的各个所述第二光强测量值和/或各个所述第二光强参考值进行处理,得到处理后的各个所述预设波长下的各个所述第二光强测量值和/或各个所述第二光强参考值,并将处理后的各个所述预设波长下的各个所述第二光强测量值和/或各个所述光强参考值发送至所述终端;
所述终端,配置为根据处理后的各个所述预设波长下的各个所述第二光强测量值和/或各个所述第二光强参考值,确定待测组织成分的浓度。
附图说明
图1是根据本公开实施例的一种组织成分无创检测中距离确定方法的流程图;
图2是根据本公开实施例的一种形成在被测部位的表面的目标圆环光束的示意图;
图3是根据本公开实施例的一种基于感光面获取第一光强值的示意图;
图4是根据本公开实施例的一种由点状光斑扫描形成目标圆环光束的示意图;
图5是根据本公开实施例的一种由光束投影形成目标圆环光束的示意图;
图6是根据本公开实施例的另一种基于感光面获取第一光强值的示意图;
图7是根据本公开实施例的再一种基于感光面获取第一光强值的示意图;
图8是根据本公开实施例的又一种基于感光面获取第一光强值的示意图;
图9是根据本公开实施例的一种屏蔽干扰光的示意图;
图10是根据本公开实施例的另一种屏蔽干扰光的示意图;
图11是根据本公开实施例的另一种组织成分无创检测中距离确定方法的流程图;
图12是根据本公开实施例的再一种组织成分无创检测中距离确定方法的流程图;
图13是根据本公开实施例的一种组织成分无创检测方法的流程图;
图14是根据本公开实施例的一种形成在被测部位的表面的测量圆环光束和参考圆环光束的示意图;
图15是根据本公开实施例的一种基于感光面获取第二光强测量值和第二光强参考值的示意图;
图16是根据本公开实施例的另一种基于感光面获取第二光强测量值和第二光强参考值的示意图;
图17是根据本公开实施例的再一种屏蔽干扰光的示意图;
图18是根据本公开实施例的另一种组织成分无创检测方法的流程图;
图19是根据本公开实施例的再一种组织成分无创检测方法的流程图;
图20是根据本公开实施例的一种组织成分无创检测中距离确定装置的结构示意图;
图21是根据本公开实施例的一种第一获取模块的结构示意图;
图22是根据本公开实施例的一种第一形成子模块的结构示意图;
图23是根据本公开实施例的另一种组织成分无创检测中距离确定装置的结构示意图;
图24是根据本公开实施例的再一种组织成分无创检测中距离确定装置的结构示意图;
图25是根据本公开实施例的又一种组织成分无创检测中距离确定装置的结构示意图;
图26是根据本公开实施例的还一种组织成分无创检测中距离确定装置的结构示意图;
图27是根据本公开实施例的还一种组织成分无创检测中距离确定装置的结构示意图;
图28是根据本公开实施例的再一种感光面与被测部位的表面非接触的示意图;
图29是根据本公开实施例的又一种感光面与被测部位的表面非接触的示意图;
图30是根据本公开实施例的又一种屏蔽干扰光的示意图;
图31是根据本公开实施例的还一种屏蔽干扰光的示意图;
图32是根据本公开实施例的一种组织成分无创检测装置的结构示意图;
图33是根据本公开实施例的一种第三获取模块的结构示意图;
图34是根据本公开实施例的一种第二形成子模块的结构示意图;
图35是根据本公开实施例的还一种屏蔽干扰光的示意图;
图36是根据本公开实施例的一种可穿戴设备的结构示意图;以及
图37是根据本公开实施例的一种组织成分无创检测***的结构示意图。
具体实施方式
下面结合附图对本公开的实施方式作进一步说明。
在实现本公开构思的过程中,发明人发现由于参考距离和测量距离因波长而异,因被测对象而异,以及,因被测部位而异,因此,如果针对被测对象的被测部位,确定与每个预设波长对应的参考距离和测量距离,则需要在距入射光束的中心的各个源探距离处设置感光面。上述对光电检测器的制作水平提出了很高的要求。换句话说,上述依赖于光电检测器的制作水平。而受限于当前光电检测器的制作水平,难以实现在距入射光束的中心的各个源探距离处设置感光面,只能根据大多数被测对象的平均参数,在有限个源探距离处设置感光面。由此导致采用相关技术难以针对被测对象的被测部位,准确确定与每个预设波长对应的参考距离和测量距离,进而使得检测精度不高。
为了提高检测精度,需要准确确定参考距离和/或测量距离。为了解决该问题,发明人提出一种采用改变光源和感光面的设置方式的方案,下面将结合具体实施例进行说明。
图1是根据本公开实施例的一种组织成分无创检测中距离确定方法的流程图,本实施例可以适用于提高待测组织成分浓度的检测精度的情况。
如图1所示,该方法包括操作S110~S120。
在操作S110,针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,其中,源探距离的数量为至少两个,预设波长的数量为至少一个。
根据本公开的实施例,源探距离可以表示光源与出射位置之间的距离,这里所述的光源可以理解为形成在被测部位的表面的光束,出射位置可以指出射光强值的位置,光强值为光束通过被测部位后,从被测部位的表面所出射的光强值。需要说明的是,本公开实施例所述的光强值均指漫反射光强值,并且,本公开实施例中用于确定测量距离和参考距离的光强值为第一光强值。还需要说明的是,上述如果与出射位置对应设置有感光面,则源探距离可以 表示光源与感光面之间的距离。其中,这里所述的感光面可以与被测部位接触,也可以与被测部位非接触,可以根据实际情况进行设定,在此不作具体限定。感光面可以用于接收从被测部位的表面所出射的光强值。
针对被测对象的被测部位,可以获取每个预设波长在每个源探距离下的至少一个第一光强值,即在被测对象的被测部位确定的情况下,针对每个预设波长,获取该预设波长在每个源探距离下的至少一个第一光强值。这里所述的每个第一光强值可以为通过在体实验获得的第一光强值、通过蒙特卡罗模拟得到的第一光强值或通过离体实验得到的第一光强值。同一预设波长在同一源探距离下的不同第一光强值所对应的待测组织成分的浓度不同,即获得同一预设波长在同一源探距离下的至少一个第一光强值,不同第一光强值对应的待测组织成分的浓度不同。
如果每个第一光强值为通过在体实验获得的第一光强值或通过离体实验得到的第一光强值,则针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,可以作如下理解,针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的至少两束目标圆环光束,不同目标圆环光束的源探距离不同,每个源探距离为目标圆环光束的内半径或外半径,不同目标圆环光束同几何中心。基于对应于几何中心的感光面,获取各束目标圆环光束通过被测部位后,从被测部位的表面所出射的至少一个第一光强值。需要说明的是,如果所述待测组织成分为血糖,则上述所述的在体实验可以包括OGTT(Oral Glucose Tolerance Test,口服葡萄糖耐量实验)。
如果每个第一光强值为通过蒙特卡罗模拟得到的第一光强值,则针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,可以作如下理解,针对被测对象的被测部位,获取每个预设波长在三层皮肤组织模型下的组织光学参数和皮肤结构参数。基于蒙特卡罗模拟,根据各个组织光学参数、各个皮肤组织结构参数、待测组织成分浓度变化所引起的组织光学参数变化关系、预设的至少两个源探距离和预设的入射光子数,确定每个预设波长在每个源探距离下的第一光强值。其中,蒙特卡罗模拟能够实现生物组织中随机散射的光学传播路径模拟,可以得到漫散射光强值的空间分布及被吸收的光子部分在组织内的分布情况。三层皮肤组织模型可以理解为包括表皮层、真皮层和皮下组织。组织光学参数可以包括各个皮肤层的吸收系数、散射系数、各个向异性因子和平均折射率等。皮肤组织结构参数可以理解为各层皮肤组织的厚度,即上文所述的表皮层的厚度、真皮层的厚度和皮下组织的厚度。待测组织成分浓度变化引起的组织光学参数变化关系可以包括待测组织成分浓度变化引起的吸收系数变化关系和待测组织成分浓度变化引起的约化散射系数变化关系。待测组织成分可以包括血糖、脂肪和白细胞等。
在操作S120,根据待测组织成分浓度变化引起的光强变化量的绝对值,从与预设波长对应的各第一光强值中确定第一光强测量值和/或第一光强参考值,将与第一光强测量值对应的源探距离作为测量距离,将与第一光强参考值对应的源探距离作为参考距离,其中,第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,待测组织成分浓度变化引起的光强变化量为第一光强值与对应的预设的光强预设值之间的变化量。
根据本公开的实施例,由于测量距离为源探距离对应的出射位置所出射的漫散射光强值对待测组织成分浓度变化的灵敏度最大的源探距离,参考距离为源探距离对应的出射位置所出射的漫散射光强值对待测组织成分浓度变化的灵敏度为零的源探距离,其中,漫散射光强值对待测组织成分浓度变化的灵敏度为光强变化量与待测组织成分浓度变化量的比值,因此,当待测组织成分浓度变化量确定时,测量距离为源探距离对应的出射位置所出射的光强变化量的绝对值最大的源探距离,参考距离为源探距离对应的出射位置所出射的光强变化量的绝对值最小的源探距离。上述所述的漫反射光强值为第一光强值。
基于上述,可以根据待测组织成分浓度变化引起的光强变化量的绝对值,从与预设波长对应的各第一光强值中确定第一光强测量值和/或第一光强参考值,将与第一光强测量值对应的源探距离作为测量距离,将与第一光强参考值对应的源探距离作为参考距离,其中,第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,待测组织成分浓度变化引起的光强变化量为第一光强值与对应的预设的光强预设值之间的变化量。每个光强预设值可以理解为待测组织成分的浓度为预设浓度时,从被测部位的表面所出射的光强值。其中,如果每个第一光强值可以为通过在体实验获得的第一光强值,则每个光强预设值可以为被测对象在空腹状态下获得的光强值。如果每个第一光强值为通过蒙特卡罗模拟得到的第一光强值或通过离体实验得到的第一光强值,则每个光强预设值可以为预设浓度为零时,从被测部位的表面所出射的光强值。
根据本公开的实施例,根据待测组织成分浓度变化引起的光强变化量的绝对值,从与预设波长对应的各第一光强值中确定第一光强测量值,和/或,第一光强参考值,可以作如下理解,针对每个预设波长,可以从与该预设波长对应的各第一光强值中确定第一光强测量值。或者,可以从与该预设波长对应的各第一光强值中确定第一光强测量值和第一光强参考值。或者,可以从与该预设波长对应的各第一光强值中确定第一光强参考值。可以理解到,针对全部预设波长,存在如下情况。
情况一、仅确定出与每个预设波长对应的第一光强测量值;情况二、确定出与每个波长 对应的第一光强测量值和第一光强参考值;情况三、确定出与一部分预设波长对应的第一光强测量值,以及,确定出与另一部分预设波长对应的第一光强参考值;情况四、确定出与一部分预设波长对应的第一光强测量值和第一光强参考值,以及,确定出与另一部分预设波长对应的第一光强参考值;情况五、确定出与一部分预设波长对应的第一光强测量值和第一光强参考值,以及,确定出与另一部分预设波长对应的第一光强测量值。
在此基础上,从测量距离和参考距离角度来说,针对全部预设波长,存在如下情况。情况一、仅确定出与每个预设波长对应的测量距离;情况二、确定出与每个波长对应的测量距离和参考距离;情况三、确定出与一部分预设波长对应的测量距离,以及,确定出与另一部分预设波长对应的参考距离;情况四、确定出与一部分预设波长对应的测量距离和参考距离,以及,确定出与另一部分预设波长对应的参考距离;情况五、确定出与一部分预设波长对应的测量距离和参考距离,以及,确定出与另一部分预设波长对应的测量距离。针对每个预设波长,确定与该预设波长对应的测量距离和/或参考距离可以根据实际情况进行设定,在此不作具体限定。
示例性的,如λ i表示预设波长,i∈[1,M],M表示预设波长的数量,M≥1。ρ j表示源探距离,j∈[2,N],N表示源探距离的数量,N≥2。T k表示待测组织成分的浓度,k∈[1,P],P表示待测组织成分的浓度的数量,P≥1。用每个光强预设值所对应的预设浓度T 0表示。
当待测组织成分的浓度为T k时,针对被测对象的被测部位,可以获取每个预设波长λ i在每个源探距离ρ j下的一个第一光强值
Figure PCTCN2021077058-appb-000001
可以理解到,针对每个预设波长λ i,可以获取每个待测组织浓度T k下的N个第一光强值
Figure PCTCN2021077058-appb-000002
相应的,针对每个预设波长λ i,可以获取P个第一光强值集合,每个第一光强值集合包括N个第一光强值
Figure PCTCN2021077058-appb-000003
针对每个预设波长λ i,针对每个第一光强值集合,可以将该第一光强值集合中的每个第一光强值
Figure PCTCN2021077058-appb-000004
与光强预设值进行运算,确定N个由待测组织成分浓度变化引起的光强变化量的绝对值。从N个由待测组织成分浓度变化引起的光强变化量的绝对值中,确定待测组织成分浓度变化引起的光强变化量的绝对值的最大值,以及,待测组织成分浓度变化引起的光强变化量的绝对值的最小值。其中,待测组织成分浓度变化可以用T k-T 0表示。将与待测组织成分浓度变化引起的光强变化量的绝对值最大对应的第一光强值 作为第一光强测量值,将与待测组织成分浓度变化引起的光强变化量的绝对值最小对应的第一光强值作为第一光强参考值。可以理解到,针对每个预设波长λ i,可以获得与每个待测成分的浓度T k对应的一个第一光强测量值和一个第一光强参考值。但针对每个预设波长λ i来说,不同待测组织成分的浓度T k下的第一光强测量值所对应的源探距离相同,不同待测组织成分的浓度T k下的第一光强参考值对应的源探距离也相同。上述可以将第一光强测量值对应的源探距离作为测量距离,将与第一光强参考值对应的源探距离作为参考距离。
根据本公开实施例的技术方案,由于针对被测对象的被测部位,可以获取与每个预设波长对应的各个源探距离下的第一光强值,因此,实现了准确确定第一光强测量值和/或第一光强参考值,进而实现了测量距离和/或参考距离的准确确定。在此基础上,通过测量距离和/或参考距离的准确确定,为待测组织成分浓度提供了基础,进而提高了检测精度。
根据本公开的实施例,操作110可以包括如下操作。针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的至少两束目标圆环光束,其中,不同目标圆环光束的源探距离不同,每个源探距离为目标圆环光束的内半径或外半径,不同目标圆环光束具有同一几何中心。基于对应于几何中心的感光面,获取各目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值。
根据本公开的实施例,为了准确确定测量距离和参考距离,可以采用动态的和可变尺寸的目标圆环光束入射,在与目标圆环光束的中心对应位置处设置感光面的方式,不同目标圆环光束可以同几何中心。这是由于不同目标圆环光束的尺寸不同,尺寸包括内半径和外半径,而感光面均设置在与每束目标圆环光束的中心对应的位置,因此,感光面接收到的每个第一光强值将是由对应的目标圆环光束入射,经过对应的传输路径后产生的。感光面与每个尺寸的目标圆环光束也将对应一个源探距离。
根据本公开的实施例,由于测量距离和参考距离因波长而异、因被测对象和因被测部位而异,因此,针对每个被测对象的被测部位,均可以采用上述方式获取与每个预设波长对应的各个第一光强值,进而可以针对被测对象的被测部位,准确确定与每个预设波长对应的参考距离和/或测量距离。
根据本公开的实施例,上述目标圆环光束和感光面的发射和接收方式大大降低了对光电检测器的要求,进而降低了制作成本,也易于实现。同时,实现了连续检测。所谓连续检测可以理解为源探距离的连续。
基于上述,实现方式如下。针对被测对象的被测部位,在被测部位的表面,形成与每个 预设波长对应的不同尺寸的目标圆环光束,将感光面设置在与每束目标圆环光束的中心对应的位置,基于感光面,接收每束目标圆环光束通过被测部位后,从被测部位的表面所出射的至少一个第一光强值。其中,各束目标圆环光束可以同几何中心形成在被测部位的表面。需要说明的是,不同目标圆环光束的内半径和外半径均不同。内半径和外半径均指的是半径。每束目标圆环光束的尺寸可以根据实际情况进行设定,在此不作具体限定。同一预设波长在同一目标圆环光束下的不同第一光强值所对应的待测组织成分的浓度不同,即获得同一预设波长在同一目标圆环光束下的至少一个第一光强值,不同第一光强值对应的待测组织成分的浓度不同。此外,不同目标圆环光束的环宽可以相同,也可以不同,具体可以根据实际情况进行设定,在此不作具体限定。其中,每束目标圆环光束的环宽可以理解为每束目标圆环光束的外半径与每束目标圆环光束的内半径之差。每束目标圆环光束可以由点状光斑形成或者由光束投影形成。不同预设波长对应的各目标圆环光束可以相同,也可以不同,具体可以根据实际情况进行设定,在此不作具体限定。
示例性的,如图2所示,图2是根据本公开实施例的一种形成在被测部位的表面的目标圆环光束的示意图。针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的由内至外的S束目标圆环光束,S≥2。每束目标圆环光束的环宽可以为0.1mm。相邻两束目标圆环光束的间隔可以为0.1mm。不同目标圆环光束具有同一几何中心。在与几何中心对应的位置,设置感光面,该感光面可接收每束目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值。上述可以基于感光面,分别接收到S束不同的目标圆环光束通过被测部位后,从被测部位的表面所出射的至少S个第一光强值。如图3所示,图3是根据本公开实施例的一种基于感光面获取第一光强值的示意图。
此外,为了获得与每个预设波长对应的第一光强值,可以采用如下两种方式。方式一、按预设波长。即针对每个预设波长,在被测部位的表面,形成各束目标圆环光束,每形成一束目标圆环光束,则在该目标圆环光束的中心,基于感光面,获取该目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值。由此可以获得该预设波长下,与每束目标圆环光束对应的第一光强值。采用同样方式,可以获得每个预设波长下,与每束目标圆环光束对应的第一光强值;方式二、按目标圆环光束。即不同预设波长,在被测部位的表面,依次形成同一尺寸的目标圆环光束。当每个预设波长形成同一尺寸的目标圆环光束,便在上述目标圆环光束的中心,基于感光面,获取上述同一尺寸的目标圆环光束分别通过被测部位后,从被测部位的表面所出射的第一光强值。由此可以获得各个预设波长下,分别与上述同一尺寸的目标圆环光束对应的第一光强值。采用同样方式,可以获得在各个预设波长下,分别与 不同尺寸的目标圆环光束对应的第一光强值。
根据本公开的实施例,上述由于可以通过调节目标圆环光束的尺寸,获取与每个预设波长对应的各个源探距离下的第一光强值,因此,实现了准确确定第一光强测量值和第一光强参考值,进而实现了测量距离和参考距离的准确确定。此外,目标圆环光束和感光面的发射和接收方式大大降低了对光电检测器的要求,进而降低了制作成本,也易于实现。同时,实现了连续检测。
根据本公开的实施例,每束目标圆环光束由点状光斑扫描形成或由光束投影形成。
根据本公开的实施例,每束目标圆环光束可以通过如下两种方式形成:方式一、点状光斑扫描形成;方式二、光束投影形成。其中,针对方式一,可以参见图4。如图4所示,图4是根据本公开实施例的一种由点状光斑扫描形成目标圆环光束的示意图。针对方式二,可以参见图5。如图5所示,图5是根据本公开实施例的一种由光束投影形成目标圆环光束的示意图。
根据本公开的实施例,感光面与被测部位的表面接触或非接触。
根据本公开的实施例,组织成分无创检测的形式可以包括接触式检测和非接触式检测。其中,接触式检测可以避免干扰光被感光面接收到,进而可以实现进一步提高检测精度。非接触式检测可以避免温度和压力等干扰因素对光强值变化的影响,进而可以实现进一步提高检测精度。
如果设置感光面与被测部位的表面接触,则可以认为组织成分无创检测的形式为接触式检测。可以以理解到,上述可以避免干扰光被感光面接收到,进而可以实现进一步提高检测精度。
如果设置感光面与被测部位的表面非接触,则可以根据感光面是否通过导光部获取第一光强值,以及,如果通过导光部获取第一光强值,则导光部是否与被测部位的表面接触,确定组织成分无创检测的形式。其中,导光部包括导光部的第一端和导光部的第二端。导光部的第一端距被测部位的表面的距离大于导光部的第二端距被测部位的表面的距离。导光部的第一端和导光部的第二端为相对的两个端面。导光部的第二端与被测部位的表面接触或接触。导光部的第二端为光束的入口,即目标圆环光束通过被测部位的表面后所出射的光束将通过导光部的第二端进入导光部并传输至导光部的第一端。
根据本公开的实施例,如果感光面与被测部位的表面非接触,且,感光面未通过导光部获取第一光强值,则可以认为组织成分无创检测的形式为非接触式检测。如果感光面通过导光部获取第一光强值,则为了实现感光面与被测部位的表面非接触,便需要将感光面设置于导光部的第一端。在此基础上,根据导光部的第二端是否与被测部位的表面接触,确定组织 成分无创检测的形式。即如果导光部的第二端与被测部位的表面接触,则可以认为组织成分无创检测的形式为接触式检测。如果导光部的第二端与被测部位的表面非接触,则可以认为组织成分无创检测的形式为非接触式检测。
综上,接触式检测可以包括如下两种方式。方式一、感光面与被测部位的表面接触。如图6所示,图6是根据本公开实施例的另一种基于感光面获取第一光强值的示意图。图6中感光面阵列与被测部位的表面接触;方式二、感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面接触。如图7所示,图7是根据本公开实施例的再一种基于感光面获取第一光强值的示意图。图7中导光部的第二端与被测部位的表面接触。
非接触式检测可以包括如下两种方式。方式一、感光面与被测部位的表面非接触,且,感光面未通过导光部获取第一光强值。可以参见图3。图3中感光面未通过导光部获取第一光强值;方式二、感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面非接触。如图8所示,图8是根据本公开实施例的又一种基于感光面获取第一光强值的示意图。图8中导光部的第二端与被测部位的表面非接触。
根据本公开的实施例,可以通过如下方式实现感光面与被测部位的表面非接触:感光面设置于导光部的第一端,导光部的第二端与被测部位的表面接触或非接触,导光部的第一端与导光部的第二端为相对的端面。
根据本公开的实施例,为了实现感光面与被测部位的表面非接触,则可以将感光面设置于导光部的第一端上。其中,导光部的第一端与被测部位的表面非接触,即可以在导光部与被测部位的表面非接触的第一端面上设置感光面。与导光部的第一端相对的导光部的第二端可以与被测部位的表面接触,也可以与被测部位的表面非接触,具体可以根据实际情况进行设定,在此不作具体限定。如果感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面接触,则可以认为组织成分无创检测的形式为接触式检测。可以参见图7。如果感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面非接触,则可以认为组织成分无创检测的形式为非接触式检测。可以参见图8。
根据本公开的实施例,感光面与被测部位的表面非接触。在基于对应于几何中心的感光面,获取各束目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值之前,还可以包括如下操作。屏蔽干扰光。
根据本公开的实施例,目标圆环光束传输至被测部位后,部分目标圆环光束将在被测部位的表面直接反射形成表面反射光,部分目标圆环光束通过被测部位后,从被测部位的表面所出射的漫散射光(即第一光强值)。其中,由于表面反射光没有与组织发生作用,将不携带有效信息,有效信息可以理解为检测过程中由待测组织成分的浓度变化所引起的响应称为有 效信息,因此,可以将表面反射光作为干扰光。而由于漫散射光与皮肤组织发生了作用,携带有有效信息,因此,可以将漫散射光作为有效光。
如果感光面与被测部位的表面非接触,则可能产生表面反射光,基于此,为了进一步提高检测精度,可以在基于对应于几何中心的感光面,获取各束目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值之前,采用屏蔽干扰光的方式,使得基于感光面,获取各束目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值。可以采用如下两种方式屏蔽干扰光。
方式一、如果感光面与被测部位的表面非接触,且,感光面未通过导光部获取第一光强值,则可以在感光面与被测部位的表面之间的间隙区域设置第一挡光部,且,第一挡光部与被测部位的表面接触。感光面设置于第一挡光部的内部。第一挡光部与感光面一体或第一挡光部与感光面分立。如图9所示,图9是根据本公开实施例的一种屏蔽干扰光的示意图;
方式二、如果感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面非接触,则可以在导光部与被测部位的表面之间的间隙区域设置第二挡光部,第二挡光部的第一端与导光部的第二端接触,第二挡光部的第二端与被测部位的表面接触,第二挡光部的第二端与第二挡光部的第一端为相对的端面。第二挡光部的第一端距被测部位的表面的距离大于第二挡光部的第二端距被测部位的表面的距离。如图10所示,图10是根据本公开实施例的另一种屏蔽干扰光的示意图。
根据本公开的实施例,上述通过在获取各束目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值之前,屏蔽干扰光,从而使得获取到的仅为漫散射光。由于漫散射光携带有有效信息,因此,进一步提高了检测精度。
图11是根据本公开实施例的另一种组织成分无创检测中距离确定方法的流程图,本实施例可以适用于提高待测组织成分浓度的检测精度的情况。
如图11所示,该方法包括操作S210~S220。
在操作S210,针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的至少两束目标圆环光束。
根据本公开的实施例,不同目标圆环光束的源探距离不同,每个源探距离为目标圆环光束的内半径或外半径,不同目标圆环光束同几何中心,预设波长的数量为至少一个。每束目标圆环光束由点状光斑扫描形成或由光束投影形成。
在操作S220,基于对应于几何中心的感光面,获取各束目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值。
根据本公开的实施例,感光面与被测部位的表面接触或非接触。可以通过如下方式实现 感光面与被测部位的表面非接触:感光面设置于导光部的第一端,导光部的第二端与被测部位的表面接触或非接触,导光部的第一端与导光部的第二端为相对的端面。如果感光面与被测部位的表面非接触,则在操作S220之前,还可以包括如下操作。屏蔽干扰光。
在操作S230,根据待测组织成分浓度变化引起的光强变化量的绝对值,从与预设波长对应的各个第一光强值中确定第一光强测量值和/或第一光强参考值,将与第一光强测量值对应的源探距离作为测量距离,将与第一光强参考值对应的源探距离作为参考距离。
根据本公开的实施例,第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,待测组织成分浓度变化引起的光强变化量为第一光强值与对应的预设的光强预设值之间的变化量。
根据本公开实施例的技术方案,由于可以通过调节目标圆环光束的尺寸,获取与每个预设波长对应的各个源探距离下的第一光强值,因此,实现了准确确定第一光强测量值和/或第一光强参考值,进而实现了测量距离和参考距离的准确确定。在此基础上,通过测量距离和参考距离的准确确定,为待测组织成分浓度提供了基础,进而提高了检测精度。此外,目标圆环光束和感光面的发射和接收方式大大降低了对光电检测器的要求,进而降低了制作成本,也易于实现。同时,实现了连续检测。
图12是根据本公开实施例的再一种组织成分无创检测中距离确定方法的流程图,本实施例可以适用于提高待测组织成分浓度的检测精度的情况。
如图12所示,该方法包括如下操作S310~S320。
在操作S310,针对被测对象的被测部位,获取在每个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,其中,预设波长的数量为至少一个。
在操作S320,根据各个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定各个测量距离和/或各个参考距离。
根据本公开的实施例,由于对人体而言,人体组织可以以简化为由散射体和散射背景构成的复杂介质,当入射光束进入组织后会发生吸收作用和散射作用,吸收作用会直接导致光能量衰减,散射作用则会通过改变光子传输的方向来影响光能量分布,在被测部位的表面出射的漫散射光强值是两者共同作用的结果,其中,吸收作用和散射作用由组织光学参数和待测组织成分浓度变化引起的组织光学参数变化体现,而根据上文所述可知,测量距离和参考距离是由吸收作用和散射作用在不同情况下所确定,因此,针对被测对象的被测部位,为了获取与每个预设波长对应的测量距离和参考距离,可以获取与每个预设波长对应的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系。上述所述的组织光学参数和待 测组织成分浓度变化引起的组织光学参数变化关系可以参见上文说明。
在获得与每个预设波长对应的组织光学参数后,可以根据各个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定与各个预设波长对应的测量距离和/或参考距离。即针对每个预设波长,根据与该预设波长对应的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定与该预设波长对应的测量距离和/或参考距离。上述可以基于浮动基准理论,根据各个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定与各个预设波长对应的测量距离和/或参考距离。需要说明的是,上述前提均是在被测对象的被测部位确定的情况下。换句话说,上述与各个预设波长对应的测量距离和参考距离是对应被测对象的被测部位。
根据本公开的实施例,上述可以通过组织光学参数和待测成分浓度变化引起的组织光学参数变化关系,确定出对应的测量距离和/或参考距离。
图13是根据本公开实施例的一种组织成分无创检测方法的流程图,本实施例可以适用于提高待测组织成分浓度的检测精度的情况。
如图13所示,该方法包括操作S410~S420。
在操作S410,针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个测量距离和每个参考距离是根据本公开实施例所述的组织成分无创检测中距离确定方法所确定的,预设波长的数量为至少一个。
根据本公开的实施例,为了确定待测组织成分的浓度,针对被测对象的被测部位,可以获取与每个预设波长对应的第二光强测量值和/或第二光强参考值。其中,第二光强测量值可以为每个预设波长在测量距离下的第二光强值。第二光强参考值可以为每个预设波长在参考距离下的第二光强值。需要说明的是,不同预设波长的测量距离可能相同,也可能不同。不同预设波长的参考距离可能相同,也可能不同。每个测量距离和每个参考距离可以根据本公开实施例所述的方法确定,可以采用如下两种方式。
方式一、针对被测对象的被测部位,每个测量距离和每个参考距离可以由预先针对每个预设波长,对获得的与每个源探距离对应的至少一个第一光强值进行分析所确定。即针对每个预设波长,获得与每个源探距离对应的至少一个第一光强值,对各个第一光强值进行分析,以确定该预设波长下的一个测量距离和/或一个参考距离。即针对被测对象的被测部位,获取每个预设波长在每个源探距离下的至少一个第一光强值。根据待测组织成分浓度变化引起的光强变化量的绝对值,从与预设波长对应的各个第一光强值中确定第一光强测量值和/或第一光强参考值,将与第一光强测量值对应的源探距离作为测量距离,将与第一光强参考值对应 的源探距离作为参考距离。上述所述的针对被测对象的被测部位,获取每个预设波长在每个源探距离下的至少一个第一光强值,可以作如下理解,方式一、针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的至少两束目标圆环光束,不同目标圆环光束的源探距离不同,每个源探距离为目标圆环光束的内半径或外半径,不同目标圆环光束具有同一几何中心。基于对应于几何中心的感光面,获取各束目标圆环光束通过被测部位后,从被测部位的表面所出射的至少一个第一光强值;方式二、针对被测对象的被测部位,获取每个预设波长在三层皮肤组织模型下的组织光学参数和皮肤结构参数。基于蒙特卡罗模拟,根据各个组织光学参数、各个皮肤组织结构参数、待测组织成分浓度变化所引起的组织光学参数变化关系、预设的至少两个源探距离和预设的入射光子数,确定每个预设波长在每个源探距离下的第一光强值。
方式二、针对被测对象的被测部位,获取在每个预设波长下的组织光学参数和待测组织成分浓度引起的组织光学参数变化关系。根据各个预设波长下的组织光学参数和待测组织成分浓度引起的组织光学参数变化关系,确定各个测量距离和/或各个参考距离。
根据本公开的实施例,针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,可以作如下理解,针对每个预设波长,可以获取与该预设波长在测量距离下的第二光强测量值。或者,可以获取与该预设波长在参考距离下的第二光强参考值。或者,可以获取与该预设波长在测量距离下的第二光强测量值,以及,在参考距离下的第二光强参考值。针对全部预设波长,存在如下情况。
情况一、仅获取到与每个预设波长对应的第二光强测量值;情况二、获取到与每个波长对应的第二光强测量值和第二光强参考值;情况三、获取到与一部分预设波长对应的第二光强测量值,以及,获取到与另一部分预设波长对应的第二光强参考值;情况四、获取到与一部分预设波长对应的第二光强测量值和第二光强参考值,以及,获取到与另一部分预设波长对应的第二光强参考值;情况五、获取到与一部分预设波长对应的第二光强测量值和第二光强参考值,以及,获取到与另一部分预设波长对应的第二光强测量值。针对每个预设波长,获取与该预设波长对应的第二光强测量值和/或第二光强参考值可以根据实际情况进行设定,在此不作具体限定。
根据本公开的实施例,由于第二光强测量值和/或第二光强参考值均可以实现准确确定,因此,根据准确确定的第二光强测量值和/或第二光强参考值,确定待测组织成分浓度,均可以实现提高检测精度。
在操作S420,根据各个预设波长下的第二光强测量值和/或第二光强参考值,确定待测组织成分的浓度。
根据本公开的实施例,在获得各个预设波长下的各个光强值后,可以根据各个预设波长下的第二光强测量值和/或第二光强参考值,确定待测组织成分的浓度,即针对全部预设波长,存在如下情况。
情况一、仅获取到与每个预设波长对应的第二光强测量值。在此情况下,可以根据各个预设波长下的第二光强测量值,确定待测组织成分的浓度。
情况二、获取到与每个波长对应的第二光强测量值和第二光强参考值。在此情况下,可以采用差分运算,确定待测组织成分的浓度。即针对每个预设波长,将预设波长下的第二光强测量值和第二光强参考值进行差分运算,得到光强差分值。根据各个预设波长下的光强差分值,确定待测组织成分的浓度。上述执行差分运算的原因在于。由于与参考距离对应的第二光强测量值反映了检测过程中除待测组织成分的浓度变化以外,由其它干扰所引起的响应,而与测量距离对应的第二光强测量值反映了待测组织成分的响应,以及,除待测组织成分外的其它干扰的响应,因此,可以采用参考测量,即可以采用参考距离对应的第二光强参考值对与测量距离对应的第二光强测量值进行修正,以实现最大程度的消除共模干扰,进而进一步提高检测精度。
情况三、获取到与一部分预设波长对应的第二光强测量值,以及,获取到与另一部分预设波长对应的第二光强参考值。在此情况下,可以根据各个预设波长下的第二光强测量值和第二光强参考值,确定待测组织成分的浓度。
情况四、获取到与一部分预设波长对应的第二光强测量值和第二光强参考值,以及,获取到与另一部分预设波长对应的第二光强参考值。在此情况下,可以采用差分运算,确定待测组织成分的浓度。即针对获取到第二光强测量值和第二光强参考值的预设波长来说,将该预设波长下的第二光强测量值和第二光强参考值进行差分运算,得到光强差分值。根据一部分预设波长下的光强差分值和另一部预设波长下的第二光强参考值,确定待测组织成分的浓度。上述采用参考测量,即可以采用参考距离对应的第二光强参考值对与测量距离对应的第二光强测量值进行修正,以实现最大程度的消除共模干扰,进而进一步提高检测精度。
情况五、获取到与一部分预设波长对应的第二光强测量值和第二光强参考值,以及,获取到与另一部分预设波长对应的第二光强测量值。在此情况下,可以采用差分运算,确定待测组织成分的浓度。即针对获取到第二光强测量值和第二光强参考值的预设波长来说,将该预设波长下的第二光强测量值和第二光强参考值进行差分运算,得到光强差分值。根据一部分预设波长下的光强差分值和另一部预设波长下的第二光强测量值,确定待测组织成分的浓度。上述采用参考测量,即可以采用参考距离对应的第二光强参考值对与测量距离对应的第二光强测量值进行修正,以实现最大程度的消除共模干扰,进而进一步提高检测精度。
根据本公开实施例的技术方案,由于针对被测对象的被测部位,可以准确获取与每个预设波长对应测量距离和/或参考距离,因此,根据准确确定的测量距离和/或参考距离,实现了第二光强测量值和/或第二光强参考值的准确确定。由于根据准确确定的第二光强测量值和/或第二光强参考值,确定待测组织成分浓度,因此,提高了检测精度。
根据本公开的实施例,操作410可以如下操作。针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的一束测量圆环光束和/或一束参考圆环光束,其中,每束测量圆环光束的内半径或外半径为对应的测量距离,每束参考圆环光束的内半径或外半径为对应的参考距离,每束测量圆环光束和每束参考圆环光束具有同一几何中心。基于对应于几何中心的感光面,获取每束测量圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值,和/或,每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强参考值。
根据本公开的实施例,为了获取第二光强测量值和/或第二光强参考值,可以采用如下方式,针对被测对象的被测部位,在该被测部位的表面,可以形成与每个预设波长对应的一束测量圆环光束和/或一束参考圆环光束,即在被测对象的被测部位确定的情况下,每个预设波长对应形成一束测量圆环光束和/或一束参考圆环光束。其中,每束测量圆环光束的内半径或外半径为对应的测量距离,即每束测量圆环光束可以为距出射位置的源探距离为对应的测量距离的光束。每束参考圆环光束的内半径或外半径为对应的参考距离,即每束参考圆环光束可以为距出射位置的源探距离为对应的参考距离的光束。由于与出射位置对应设置有感光面,因此,每束测量圆环光束可以为距感光面的源探距离为对应的测量距离的光束,每束参考圆环光束可以为距感光面的源探距离为对应的参考距离的光束。测量圆环光束与测量距离对应,参考圆环光束与参考距离对应。需要说明的是,每束测量圆环光束和每束参考圆环光束可以由点状光斑扫描形成或由光束投影形成。
示例性的,如图14所示,图14是根据本公开实施例的一种形成在被测部位的表面的测量圆环光束和参考圆环光束的示意图。针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的一束测量圆环光束和一束参考圆环光束,测量圆环光束和参考圆环光束具有同一几何中心。在与几何中心对应的位置,设置感光面,该感光面可以接收每束测量圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值,以及,每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强参考值。如图15所示,图15是根据本公开实施例的一种基于感光面获取第二光强测量值和第二光强参考值的示意图。
根据本公开的实施例,上述由于测量距离和/或参考距离的准确确定,因此,根据准确确定的测量距离和/或参考距离,并结合形成测量圆环光束和/或参考圆环光束的方式,实现了第 二光强测量值和/或第二光强参考值的准确确定。由于根据准确确定的第二光强测量值和/或第二光强参考值,确定待测组织成分浓度,因此,提高了检测精度。
根据本公开的实施例,每束测量圆环光束由点状光斑扫描形成或由光束投影形成,以及,每束参考圆环光束由点状光斑扫描形成或由光束投影形成。
根据本公开的实施例,每束测量圆环光束和每束参考圆环光束均可以通过如下两种方式形成。方式一、点状光斑扫描形成;方式二、光束投影形成。其中,针对方式一,可以参见图4。针对方式二,可以参见图5。
根据本公开的实施例,操作420可以包括如下操作。针对每个预设波长,将预设波长下的第二光强测量值和第二光强参考值进行差分运算,得到光强差分值。根据各个预设波长下的光强差分值,确定待测组织成分的浓度。
根据本公开的实施例,为了进一步提高检测精度,可以采用针对每个预设波长,将该预设波长下的第二光强测量值和第二光强参考值进行差分运算,得到该预设波长下的光强差分值。基于此,可以获得各个预设波长下的光强差分值,根据各个预设波长下的光强差分值,确定待测组织成分浓度的方式。上述所述的根据各个预设波长下的光强差分值,确定待测组织成分的浓度,可以作如下理解,可以将各个预设波长下的光强差分值输入预先训练生成的组织成分预测模型中,得到预测结果,该预测结果即是待测组织成分的浓度。具体计算过程详见公开号为CN1699973A,公开日为2005年11月23日的专利文件,在此不再具体赘述。
根据本公开的实施例,上述由于与参考距离对应的第二光强参考值反映了检测过程中除待测组织成分的浓度变化以外,由其它干扰所引起的响应,而与测量距离对应的第二光强测量值反映了待测组织成分的响应,以及,除待测组织成分外的其它干扰的响应,因此,采用参考测量,即采用参考距离对应的第二光强参考值对与测量距离对应的第二光强测量值进行修正,实现了最大程度的消除共模干扰,进而进一步提高了检测精度。
如图7和图8,以及,图15和图16所示,根据本公开的实施例,感光面与被测部位的表面接触或非接触。
根据本公开的实施例,组织成分无创检测的形式可以包括接触式检测和非接触式检测。接触式检测可以包括如下两种方式。方式一、感光面与被测部位的表面接触。如图16所示,图16是根据本公开实施例的另一种基于感光面获取第二光强测量值和第二光强参考值的示意图。图16中感光面与被测部位的表面接触;方式二、感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面接触。可以参见图7。
非接触式检测可以包括如下两种方式。方式一、感光面与被测部位的表面非接触,且,感光面未通过导光部获取第一光强值。可以参见图15;方式二、感光面设置于导光部的第一 端,且,导光部的第二端与被测部位的表面非接触。可以参见图8。需要说明的是,对接触式检测和非接触式检测的说明可以参见上文对应部分,在此不再具体赘述。
如图7和图8所示,根据本公开的实施例,可以通过如下方式实现感光面与被测部位的表面非接触:感光面设置于导光部的第一端,导光部的第二端与被测部位的表面接触或非接触,导光部的第一端与导光部的第二端为相对的端面。
根据本公开的实施例,为了实现感光面与被测部位的表面非接触,则可以将感光面设置于导光部的第一端上。需要说明的是,对将感光面设置于导光部的第一端上的说明可以参见上文对应部分,在此不再具体赘述。
根据本公开的实施例,感光面与被测部位的表面非接触。在基于对应于几何中心的感光面,获取每束测量圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值,和/或,每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强参考值之前,还可以包括如下操作。屏蔽干扰光。
根据本公开的实施例,测量圆环光束和/或参考圆环光束传输至被测部位后,部分测量圆环光束和参考圆环光束将在被测部位的表面直接反射形成表面反射光,部分测量圆环光束和参考圆环光束通过被测部位后,从被测部位的表面所出射的漫散射光(即第二光强测量值和第二光强参考值)。其中,由于表面反射光没有与组织发生作用,将不携带有效信息,有效信息可以理解为检测过程中由待测组织成分的浓度变化所引起的响应称为有效信息,因此,可以将表面反射光作为干扰光。而由于漫散射光与皮肤组织发生了作用,携带有有效信息,因此,可以将漫散射光作为有效光。
如果感光面与被测部位的表面非接触,则可能产生表面反射光,基于此,为了进一步提高检测精度,可以在基于对应于几何中心的感光面,获取每束测量圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值,和/或,每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强参考值之前,采用屏蔽干扰光的方式,使得基于感光面,获取每束测量光束和/或每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值和/或第二光强参考值。可以采用如下两种方式屏蔽干扰光。
方式一、如果感光面与被测部位的表面非接触,且,感光面未通过导光部获取第二光强测量值和第二光强参考值,则可以在感光面与被测部位的表面之间的间隙区域设置第一挡光部,且,第一挡光部与被测部位的表面接触。感光面设置于第一挡光部的内部。第一挡光部与感光面一体或第一挡光部与感光面分立。如图17所示,图17是根据本公开实施例的再一种屏蔽干扰光的示意图;
方式二、如果感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面非 接触,则可以在导光部与被测部位的表面之间的间隙区域设置第二挡光部,第二挡光部的第一端与导光部的第二端接触,第二挡光部的第二端与被测部位的表面接触,第二挡光部的第二端与第二挡光部的第一端为相对的端面。第二挡光部的第一端距被测部位的表面的距离大于第二挡光部的第二端距被测部位的表面的距离。可以参见图10。
根据本公开的实施例,上述通过在获取每束测量圆环光束和/或每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值和第二光强参考值之前,屏蔽干扰光,从而使得感光面获取到的仅为漫散射光。由于漫散射光携带有有效信息,因此,进一步提高了检测精度。
图18是根据本公开实施例的另一种组织成分无创检测方法的流程图,本实施例可以适用于提高待测组织成分浓度的检测精度的情况。
如图18所示,该方法包括操作S510~S570。
在操作S510,针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的至少两束目标圆环光束。
根据本公开的实施例,不同目标圆环光束的源探距离不同,每个源探距离为目标圆环光束的内半径或外半径,不同目标圆环光束同几何中心,预设波长的数量为至少一个。每束目标圆环光束由点状光斑扫描形成或由光束投影形成。
在操作S520,基于对应于几何中心的感光面,获取各束目标圆环光束通过被测部位后,从被测部位的表面所出射的第一光强值。
在操作S530,根据待测组织成分浓度变化引起的光强变化量的绝对值,从与预设波长对应的各个第一光强值中确定第一光强测量值和第一光强参考值,将与第一光强测量值对应的源探距离作为测量距离,将与第一光强参考值对应的源探距离作为参考距离。
根据本公开的实施例,第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,待测组织成分浓度变化引起的光强变化量为第一光强值与对应的预设的光强预设值之间的变化量。
在操作S540,针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的一束测量圆环光束和一束参考圆环光束。
根据本公开的实施例,每束测量圆环光束的内半径或外半径为对应的测量距离,每束参考圆环光束的内半径或外半径为对应的参考距离,每束测量圆环光束和每束参考圆环光束同几何中心。每束测量圆环光束由点状光斑扫描形成或由光束投影形成,以及,每束参考圆环光束由点状光斑扫描形成或由光束投影形成。
在操作S550,基于对应于几何中心的感光面,获取每束测量圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值,以及,每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强参考值。
在操作S560,针对每个预设波长,将预设波长下的第二光强测量值和第二光强参考值进行差分运算,得到光强差分值。
在操作S570,根据各个预设波长下的光强差分值,确定待测组织成分的浓度。
根据本公开的实施例,感光面与被测部位的表面接触或非接触。可以通过如下方式实现感光面与被测部位的表面非接触。感光面设置于导光部的第一端,导光部的第二端与被测部位的表面接触或非接触,导光部的第一端与导光部的第二端为相对的端面。如果感光面与被测部位的表面非接触,则在操作S520之前,还可以包括如下操作。屏蔽干扰光。以及,在操作S550之前,还可以包括如下操作。屏蔽干扰光。
根据本公开实施例的技术方案,由于针对被测对象的被测部位,通过调节目标圆环光束的尺寸,可以获取与每个预设波长对应的各个源探距离下的第一光强值,因此,实现了第一光强测量值和/或第一光强参考值的准确确定,进而实现了测量距离和/或参考距离的准确确定。在此基础上,根据准确确定的测量距离和/或参考距离,并结合形成测量圆环光束和/或参考圆环光束的方式,实现了第二光强测量值和/或第二光强参考值的准确确定。由于根据准确确定的第二光强测量值和/或第二光强参考值,确定待测组织成分浓度,因此,提高了检测精度。通过差分运算,消除了第二光强参考值和第二光强测量值中的共模干扰,进而进一步提高了检测精度。此外,目标圆环光束和感光面的发射和接收方式大大降低了对光电检测器的要求,进而降低了制作成本,也易于实现。同时,实现了连续检测。
图19是根据本公开实施例的再一种组织成分无创检测方法的流程图,本实施例可以适用于提高待测组织成分浓度的检测精度的情况。
如图19所示,该方法包括操作S610~S660。
在操作S610,针对被测对象的被测部位,获取在每个预设波长下的组织光学参数和待测组织成分浓度引起的组织光学参数变化关系,其中,预设波长的数量为至少一个。
在操作S620,根据各个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定各个测量距离和各个参考距离。
在操作S630,针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的一束测量圆环光束和一束参考圆环光束。
根据本公开的实施例,每束测量圆环光束的内半径或外半径为对应的测量距离,每束参考圆环光束的内半径或外半径为对应的参考距离,每束测量圆环光束和每束参考圆环光束同 几何中心。每束测量圆环光束由点状光斑扫描形成或由光束投影形成,以及,每束参考圆环光束由点状光斑扫描形成或由光束投影形成。感光面与被测部位的表面接触或非接触。可以通过如下方式实现感光面与被测部位的表面非接触:感光面设置于导光部的第一端,导光部的第二端与被测部位的表面接触或非接触,导光部的第一端与导光部的第二端为相对的端面。
在操作S640,基于对应于几何中心的感光面,获取每束测量圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值,以及,每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强参考值。
在操作S650,针对每个预设波长,将预设波长下的第二光强测量值和第二光强参考值进行差分运算,得到光强差分值。
在操作S660,根据各个预设波长下的光强差分值,确定待测组织成分的浓度。
根据本公开的实施例,如果感光面与被测部位的表面非接触,则在操作S640之前,还可以包括如下操作。屏蔽干扰光。
本公开实施例所述的组织成分无创检测中距离确定方法可以由组织成分无创检测中距离确定装置来执行,组织成分无创检测方法可以由组织成分无创检测装置来执行,组织成分无创检测中距离确定装置和组织成分无创检测装置可以以采用软件和/或硬件的方式实现,组织成分无创检测装置可以以配置于可穿戴设备中,如智能手表。
图20是根据本公开实施例的一种组织成分无创检测中距离确定装置的结构示意图,本实施例可适用于提高待测组织成分浓度的检测精度的情况。
如图20所示,该组织成分无创检测中距离确定装置1包括第一获取模块10和第一确定模块11。下面将结合附图对其结构和工作原理进行说明。
第一获取模块10,配置为针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,其中,源探距离的数量为至少两个,预设波长的数量为至少一个。
第一确定模块11,配置为根据待测组织成分浓度变化引起的光强变化量的绝对值,从与预设波长对应的各第一光强值中确定第一光强测量值和/或第一光强参考值,将与第一光强测量值对应的源探距离作为测量距离,将与第一光强参考值对应的源探距离作为参考距离,其中,第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,待测组织成分浓度引起的光强变化量为第一光强值与对应的预设的光强预设值之间的变化量。
根据本公开的实施例,第一获取模块10和第一确定模块11的具体处理过程,可以参见上文针对组织成分无创检测中距离确定方法相应部分的说明,在此不再具体赘述。
如图21所示,根据本公开的实施例,第一获取模块10包括第一形成子模块100和第一 获取子模块101。
第一形成子模块100,配置为针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的至少两束目标圆环光束,其中,不同目标圆环光束的源探距离不同,每个源探距离为目标圆环光束的内半径或外半径,不同目标圆环光束同几何中心。
第一获取子模块101,配置为基于对应于几何中心的感光面,获取各束目标圆环光束通过所述被测部位后,从所述被测部位的表面所出射的第一光强值。
根据本公开的实施例,第一形成子模块100和第一获取子模块101的具体处理过程,可以参见上文针对组织成分无创检测中距离确定方法相应部分的说明,在此不再具体赘述。
如图22所示,根据本公开的实施例,第一形成子模块100包括光源发射单元1000、光束调节单元1001和控制单元1002。控制单元1002可以分别与光源发射单元1000和光束调节单元1001通信连接。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000和光束调节单元1001配合形成与每个预设波长对应的至少两束目标圆环光束。
根据本公开的实施例,工作状态指令可以为控制光源发射单元1000和光束调节单元1001的工作状态的指令。针对被测对象的被测部位,在被测部位的表面,控制单元1002可以根据对应的工作状态指令使光源发射单元1000和光束调节单元1001共同配合,形成与每个预设波长对应的至少两束目标圆环光束。可以以理解到,上述控制单元1002根据对应的工作状态指令,使光源发射单元1000和光束调节单元1001共同配合,形成的是各个预设波长下的各束目标圆环光束。
如图23所示,根据本公开的实施例,光束调节单元1001包括MEMS(Microelectromechanical Systems,微机电***)扫描镜10010。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至MEMS扫描镜10010,以及,根据对应的工作状态指令控制MEMS扫描镜10010将各束入射光束转换为对应的目标圆环光束,并将各束目标圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000和MEMS扫描镜10010可以在控制单元1002的控制下,配合形成各束目标圆环光束。其中,MEMS扫描镜10010可以为二维MEMS扫描镜。
根据本公开的实施例,控制单元1002同步控制光源发射单元1000和MEMS扫描镜10010,采用逐行扫描的方式,实现由预设像素点组成的二维扫描图像,如果预设像素点形成的轨迹 为目标圆环,则该二维扫描图像即为目标圆环图像。上述扫描方式使得目标圆环图像中预设像素点的显示时间与空间坐标得以确定。其中,目标圆环图像中预设像素点的空间坐标由MEMS扫描镜10010的偏角确定。目标圆环图像中预设像素点的显示时间由光源发射单元1000确定。即可以通过控制单元1002同步控制光源发射单元1000和MEMS扫描镜10010,实现预设像素点的显示时间与空间坐标的对应。当预设像素点不同时,将形成尺寸不同的目标圆环图像。将尺寸不同的目标圆环图像投影至被测部位,即形成尺寸不同的目标圆环形光束。需要说明的是,上述预设像素点的空间坐标和显示时间可以体现在工作状态指令中。
如图24所示,根据本公开的实施例,光束调节单元1001包括扫描振镜组件10011。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至扫描振镜组件10011,以及,根据对应的工作状态指令控制扫描振镜组件10011将各束入射光束转换为对应的目标圆环光束,并将各束目标圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000和扫描振镜组件10011可以在控制单元1002的控制下,配合形成各束目标圆环光束。即由控制单元1002根据工作状态指令,控制光源发射单元1000发出的与每个预设波长对应的入射光束,通过由控制单元1002根据工作状态指令控制的扫描振镜组件10011将各束入射光束投射到扫描位置,入射光束在扫描位置为点状光斑,通过对点状光斑的360°环形扫描,且扫描形成的目标圆环光束的尺寸可以变,即形成尺寸不同的目标圆环光束。
如图24所示,根据本公开的实施例,扫描振镜组件10011包括第一双轴扫描振镜100110和第二双轴扫描振镜100111。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至第一双轴扫描振镜100110。
控制单元1002,配置为根据对应的工作状态指令控制第一双轴扫描振镜100110沿X轴偏转第一预设角度,实现各束入射光束沿X轴方向偏转第一预设角度,并将偏转后的各束入射光束投射至第二双轴扫描振镜100111。
控制单元1002,配置为根据工作状态指令控制第二双轴扫描振镜100111沿Y轴方向偏转第二预设角度,形成各束目标圆环光束,并将各束目标圆环光束投射至被测部位。
根据本公开的实施例,扫描振镜组件10011包括第一双轴扫描振镜100110和第二双轴扫描振镜100111,控制单元1002可以控制第一双轴扫描振镜100110和第二双轴扫描振镜100111的偏转方向的改变,以实现对入射光束的360°旋转,即实现环形扫描。并且,控制单元1002 可以控制第一双轴扫描振镜100110和第二双轴扫描振镜100111的偏转角度的改变,以实现扫描形成尺寸可以变的目标圆环光束,即形成不同尺寸的目标圆环光束。其中,控制单元1002可以控制第一双轴扫描振镜100110沿X轴偏转第一预设角度,实现各束入射光束随第一双轴扫描振镜100110沿X轴方向偏转第一预设角度,并将偏转后的各束入射光束投射至第二双轴扫描振镜100111。控制单元1002可以控制第二双轴扫描振镜100111沿Y轴偏转第二预设角度,实现偏转后的各束入射光束随第二双轴扫描振镜100111沿Y轴方向偏转第二预设角度,形成各束目标圆环光束。上述所述的第一预设角度与第二预设角度可以配置为确定入射光束投射到扫描位置,入射光束在扫描位置为点状光斑。控制单元1002可以控制第一双轴扫描振镜100110和第二双轴扫描振镜100111的偏转角度和偏转方向,实现点状光斑在被测部位的表面的360°旋转,即实现环形扫描。并且,实现扫描形成尺寸可以变的目标圆环光束,即形成不同尺寸的目标圆环光束。
根据本公开的实施例,控制单元1002可以根据不同的工作状态指令,控制第一双轴扫描振镜100110和第二双轴扫描振镜100111偏转不同的偏转角度和偏转方向,实现形成尺寸不同的目标圆环光束。
根据本公开的实施例,第一双轴扫描振镜100110的尺寸可以小于第二双轴扫描振镜100111的尺寸。通常入射光束先投射的振镜的尺寸可以以很小,只需比入射光束的尺寸大即可以。其中,入射光束先投射的振镜可以称为第一个双轴扫描振镜。相应的,后投射的振镜可以称为第二个双轴扫描振镜。由于X轴扫描速度快,而质量小的振镜惯性小,因此,第一个双轴扫描振镜可以配置为X轴扫描。由于第二个双轴扫描振镜要接收第一个双轴扫描振镜扫描的全部范围,因此,第二个双轴扫描振镜的尺寸需要比第一个双轴扫描振镜的尺寸大,可以配置为Y轴扫描。在本公开实施例中,第一双轴扫描振镜100110可以作为第一个双轴扫描振镜使用。第二双轴扫描振镜100111可以作为第二个双轴扫描振镜使用。基于上述,第一双轴扫描振镜100110可以配置为X轴扫描。第二双轴扫描振镜100111可以配置为Y轴扫描。
如图25所示,根据本公开的实施例,光束调节单元1001包括旋转反射镜10012和第一电压调焦透镜10013。
控制单元1002,配置为针对被测对象的被测部位,在被测部位,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至旋转反射镜10012。
控制单元1002,配置为根据对应的工作状态指令控制旋转反射镜10012以不同角度旋转,以将各束入射光束转换为对应的原始圆环光束,并将各束原始圆环光束投射至第一电压调焦 透镜10013。
控制单元1002,配置为根据对应的工作状态指令控制第一电压调焦透镜10013将各束原始圆环光束的内半径或外半径调节至对应的源探距离,得到各束目标圆环光束,并将各束目标圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000、旋转反射镜10012和第一电压调焦透镜10013可以在控制单元1002的控制下,配合形成各束目标圆环光束。如图25所示,光源发射单元1000可以配置为发出各个预设波长下的各束入射光束,各束入射光束通过旋转反射镜10012转换为对应的原始圆环光束继续传输,即控制单元1002可以控制旋转反射镜10012实现对各束入射光束的360°旋转扫描形成原始圆环光束。各束原始圆环光束通过第一电压调焦透镜10013后形成对应的目标圆环光束。上述通过控制第一电压调焦透镜10013的焦距,调节原始圆环光束的尺寸,以实现形成尺寸不同的目标圆环光束。
根据本公开的实施例,每个工作状态指令由控制单元1000根据第一状态关系表生成,第一状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束目标圆环光束与第一电压调焦透镜10013的工作电压之间的对应关系。
根据本公开的实施例,由于不同预设波长的目标圆环形光束的色散不同,因此,使得不同预设波长下的同一原始圆环光束,通过同一工作电压的第一电压调焦透镜10013后,形成的目标圆环光束的尺寸是不同的。为了实现不同预设波长下的同一原始圆环光束,通过第一电压调焦透镜10013后,形成尺寸相同的目标圆环光束,需要根据预设波长,调节第一电压调焦透镜10013的工作电压,即第一电压调焦透镜10013的工作电压与每个预设波长对应的各束目标圆环光束具有对应关系。
基于上述,可以预先构建第一状态关系表,第一状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束目标圆环光束与第一电压调焦透镜10013的工作电压之间的对应关系。控制单元1002可以根据第一状态关系表,生成工作状态指令,进而根据工作状态指令,控制旋转反射镜10012、第一电压调焦透镜10013和光源发射单元1000的工作状态。
根据本公开的实施例,上述光束调节单元1001可以包括MEMS扫描镜10010。或者,光束调节单元1001可以包括扫描振镜组件10011。或者,光束调节单元1001可以包括旋转反射镜10012和第一电压调焦透镜10013。在控制单元1002的控制下,上述分别与光源发射单元1000配合,实现通过点状光斑扫描的方式形成目标圆环光束。
如图26所示,根据本公开的实施例,光束调节单元1001包括微镜片阵列10014和成像透镜10015。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作 状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至微镜片阵列10014,以及,根据对应的工作状态指令控制微镜片阵列10014将各束入射光束转换为对应的目标圆环光束,并通过成像透镜10015将各束目标圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000和微镜片阵列10014可以在控制单元1002的控制下,配合形成各束目标圆环光束。即由控制单元1002根据工作状态指令,控制光源发射单元1000发出的与每个预设波长对应的入射光束,通过由控制单元1002根据工作状态指令控制微镜片阵列10014上形成与各束目标圆环光束所对应的微镜片处于开状态,处于开状态的微镜片将各束入射光束反射出去,形成对应的各束目标圆环光束。通过成像透镜10015将各束目标圆环光束投射至被测部位。上述通过控制微镜片阵列10014上处于开状态的微镜片,实现形成尺寸不同的目标圆环光束。
如图26所示,根据本公开的实施例,光束调节单元1001还包括扩束透镜组10016。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至扩束透镜组10016。
扩束透镜组10016,配置为对各束入射光束进行扩束,并将扩束后的各束入射光束投射至微镜片阵列10014,以使各束入射光束在微镜片阵列10014的投射覆盖微镜片阵列10014。
控制单元1002,配置为根据对应的工作状态指令控制微镜片阵列10014将各束入射光束转换为对应的目标圆环光束,并通过成像透镜10015将各束目标圆环光束投射至被测部位。
根据本公开的实施例,为了实现入射光束在微镜片阵列10014上的投射可以覆盖微镜片阵列10014,可以将设置扩束透镜组10016,通过扩束透镜组10016对入射光束进行扩束实现。
根据本公开的实施例,每个工作状态指令由控制单元1002根据第二状态关系表生成,第二状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束目标圆环光束与微镜片阵列10014中处于开状态的微镜片之间的对应关系。
根据本公开的实施例,由于不同预设波长的目标圆环形光束的色散不同,因此,使得不同预设波长下的尺寸相同的目标圆环形光束,通过成像透镜10015后,尺寸变得不同,即在被测部位的表面,原本尺寸相同的目标圆环光束,由于成像透镜10015,尺寸变得不同。为了实现在被测部位的表面,不同预设波长均可以形成同一目标圆环光束,需要根据预设波长,调节微镜片阵列10014上处于开状态的微镜片,即微镜片阵列10014上处于开状态的微镜片与每个预设波长对应的各束目标圆环光束具有对应关系。
基于上述,可以预先构建第二状态关系表,第二状态关系表存储有针对被测对象的被测 部位,与每个预设波长对应的各束目标圆环光束与微镜片阵列10014中处于开状态的微镜片之间的对应关系。控制单元1002可以根据第二状态关系表,生成工作状态指令,进而根据工作状态指令,控制微镜片阵列10014和光源发射单元1000的工作状态。
如图27所示,根据本公开的实施例,光束调节单元1001包括锥透镜10017和第二电压调焦透镜10018。
控制单元1002,配置为针对被测对象的被测部位,在被测部位,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至锥透镜10017。
锥透镜10017,配置为将各束入射光束转换为各束锥形光束,并将各束锥形光束投射至第二电压调焦透镜10018,以在第二电压调焦透镜10018成像前显示为各束原始圆环光束。
控制单元1002,配置为根据对应的工作状态指令控制第二电压调焦透镜10018将各束原始圆环光束的内半径或外半径调节至对应的源探距离,得到各束目标圆环光束,并将各束目标圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000和第二电压调焦透镜10018可以在控制单元1002的控制下,配合形成各束目标圆环光束。如图27所示,光源发射单元1000可以配置为发出各个预设波长下的入射光束,各束入射光束通过锥透镜10017后转换为对应的锥形光束继续传输,各束锥形光束在接收面上投射为对应的原始圆环光束。各束原始圆环光束通过第二电压调焦透镜10018后形成对应的目标圆环光束。上述通过控制第二电压调焦透镜10018的焦距,实现形成尺寸不同的目标圆环光束。
根据本公开的实施例,目标圆环光束的环宽可以由入射光束的光斑大小确定。
根据本公开的实施例,每个工作状态指令由控制单元1002根据第三状态关系表生成,第三状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束目标圆环光束与第二电压调焦透镜10018的工作电压之间的对应关系。
根据本公开的实施例,由于不同预设波长的目标圆环形光束的色散不同,因此,使得不同预设波长下的同一原始圆环光束,通过同一工作电压的第二电压调焦透镜10018后,形成的目标圆环光束的尺寸是不同的。为了实现不同预设波长下的同一原始圆环光束,通过第二电压调焦透镜10018后,形成尺寸相同的目标圆环光束,需要根据预设波长,调节第二电压调焦透镜10018的工作电压,即第二电压调焦透镜10018的工作电压与每个预设波长对应的各束目标圆环光束具有对应关系。
基于上述,可以预先构建第三状态关系表,第三状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束目标圆环光束与第二电压调焦透镜10018的工作电压之间 的对应关系。控制单元1002可以根据第三状态关系表,生成工作状态指令,进而根据工作状态指令,控制第二电压调焦透镜10018和光源发射单元1000的工作状态。
根据本公开的实施例,上述光束调节单元1001可以包括微镜片阵列10014和成像透镜10015。或者,光束调节单元1001可以包括锥透镜10017和第一电压调节透镜10016。在控制单元1002的控制下,上述分别与光源发射单元1000配合,实现通过光束投影的方式形成目标圆环光束。
如图3,以及,图6~图8所示,根据本公开的实施例,感光面与被测部位的表面接触,或者,感光面与被测部位的表面非接触。
根据本公开的实施例,接触式检测可以包括如下两种方式。方式一、感光面与被测部位的表面接触。可以参见图6;方式二、感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面接触。可以参见图7。
非接触式检测可以包括如下两种方式。方式一、感光面与被测部位的表面非接触,且,感光面未通过导光部获取第一光强值。可以参见图3。图3中感光面未通过导光部获取第一光强值;方式二、感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面非接触。可以参见图8。
如图28和29所示,根据本公开的实施例,该组织成分无创检测中距离确定装置1还包括导光部12。感光面设置于导光部12的第一端,导光部12的第二端与被测部位的表面接触或非接触,导光部12的第一端与导光部12的第二端为相对的端面。
根据本公开的实施例,为了实现感光面与被测部位的表面非接触,则可以将感光面设置于导光部12的第一端上。如图28所示,图28是根据本公开实施例的再一种感光面与被测部位的表面非接触的示意图。如果感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面非接触,则可以认为组织成分无创检测的形式为非接触式检测。如图29所示,图29是根据本公开实施例的又一种感光面与被测部位的表面非接触的示意图。需要说明的是,对将感光面设置于导光部12的第一端上的说明可以参见上文对应部分,在此不再具体赘述。
如图30所示,根据本公开的实施例,感光面与被测部位的表面非接触。该组织成分无创检测中距离确定装置1还包括第一挡光部13。第一挡光部13设置于感光面与被测部位的表面之间的间隙区域,且,第一挡光部13与被测部位的表面接触。感光面设置于第一挡光部13的内部。第一挡光部13与感光面一体或第一挡光部13与感光面分立。
根据本公开的实施例,如果感光面与被测部位的表面非接触,则可能产生表面反射光,基于此,为了进一步提高检测精度,需要屏蔽干扰光,可以采用如下方式。该装置还可以设置第一挡光部13,具体将第一挡光部13设置于感光面与被测部位的表面之间的间隙区域, 且,将第一挡光部13设置于感光面的周围,使得感光面位于第一挡光部13的内部。同时,确保第一挡光部13与被测部位的表面接触。如图30所示,图30是根据本公开实施例的又一种屏蔽干扰光的示意图。
根据本公开的实施例,第一挡光部13可以与感光面是一体的,即第一挡光部13可以作为感光面的***,其与感光面是一体的。此外,第一挡光部13也可以与感光面是分立的。上述可以根据实际情况进行设定,在此不作具体限定。
根据本公开的实施例,上述使得感光面获取到的仅为漫散射光。由于漫散射光携带有有效信息,因此,进一步提高了检测精度。
如图31所示,根据本公开的实施例,导光部12的第二端与被测部位的表面非接触。该组织成分无创检测中距离确定装置1还包括第二挡光部14。第二挡光部14设置于导光部12与被测部位的表面之间的间隙区域,第二挡光部14的第一端与导光部12的第二端接触,第二挡光部14的第二端与被测部位的表面接触,第二挡光部14的第二端与第二挡光部14的第一端为相对的端面。
根据本公开的实施例,如果感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面非接触,则可以认为组织成分无创检测的形式为非接触式检测。由于采用非接触式检测,将可能产生表面反射光,因此,为了进一步提高检测精度,需要屏蔽干扰光,可以采用如下方式。该组织成分无创检测中距离确定装置1还可以设置第二挡光部14,将第二挡光部14的第一端与导光部12到的第二端接触,第二挡光部14的第二端与被测部位的表面接触,以确保干扰光难以进入导光部12进而被感光面接收到。如图31所示,图31是根据本公开实施例的还一种屏蔽干扰光的示意图。
根据本公开的实施例,上述使得感光面获取到的仅为漫散射光。由于漫散射光携带有有效信息,因此,进一步提高了检测精度。
图20是根据本公开实施例的一种组织成分无创检测中距离确定装置的结构示意图,本实施例可以适配置为提高待测组织成分浓度的检测精度的情况。
如图20所示,该组织成分无创检测中距离确定装置1包括第二获取模块15和第二确定模块16。下面将结合附图对其结构和工作原理进行说明。
第二获取模块15,配置为针对被测对象的被测部位,获取在每个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,其中,预设波长的数量为至少一个。
第二确定模块16,配置为根据各个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定各个测量距离和/或各个参考距离。
根据本公开的实施例,第二获取模块15和第二确定模块16的具体处理过程,可以参见上文针对组织成分无创检测中距离确定方法相应部分的说明,在此不再具体赘述。
图32是根据本公开实施例的一种组织成分无创检测装置的结构示意图,本实施例可以适配置为提高待测组织成分浓度的检测精度的情况。
如图32所示,该组织成分无创检测装置2包括第三获取模块17和第三确定模块18。下面将结合附图对其结构和工作原理进行说明。
第三获取模块17,配置为针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个测量距离和每个参考距离是根据本公开实施例所述的组织成分无创检测中距离确定装置所确定的,预设波长的数量为至少一个。
第三确定模块18,配置为根据各个预设波长下的第二光强测量值和/或第二光强参考值,确定待测组织成分的浓度。
根据本公开的实施例,第三获取模块17和第三确定模块18的具体处理过程,可以参见上文针对组织成分无创检测方法相应部分的说明,在此不再具体赘述。
如图33所示,根据本公开的实施例,第三获取模块17包括第二形成子模块170和第二获取子模块171。
第二形成子模块170,配置为针对被测对象的被测部位,在被测部位的表面,形成与每个预设波长对应的一束测量圆环光束和/或一束参考圆环光束,其中,每束测量圆环光束的内半径或外半径为对应的测量距离,每束参考圆环光束的内半径或外半径为对应的参考距离,每束测量圆环光束和每束参考圆环光束同几何中心。
第二获取子模块171,配置为基于对应于几何中心的感光面,获取每束测量圆环光束通过被测部位后,从被测部位的表面所出射的第二光强测量值,和/或,每束参考圆环光束通过被测部位后,从被测部位的表面所出射的第二光强参考值。
根据本公开的实施例,第二形成子模块170和第二获取子模块171的具体处理过程,可以参见上文针对组织成分无创检测方法相应部分的说明,在此不再具体赘述。
如图34所示,根据本公开的实施例,第二形成子模块170包括光源发射单元1000、光束调节单元1001和控制单元1002。控制单元1002可以分别与光源发射单元1000和光束调节单元1001通信连接。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000和光束调节单元1001配合形成与每个预设波长对应的一束测量圆环光束和/或一束参考圆环光束。
根据本公开的实施例,工作状态指令可以为控制光源发射单元1000和光束调节单元1001的工作状态的指令。针对被测对象的被测部位,在被测部位的表面,控制单元1002可以根据对应的工作状态指令使光源发射单元1000和光束调节单元1001共同配合,形成与每个预设波长对应的一束测量圆环光束和/或一束参考圆环光束。上述控制单元1002根据对应的工作状态指令,使光源发射单元1000和光束调节单元1001共同配合,形成的是各个预设波长下的一束测量圆环光束和/或一束参考圆环光束。
如图23所示,根据本公开的实施例,光束调节单元1001可以包括MEMS扫描镜10010。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至MEMS扫描镜10010,以及,根据对应的工作状态指令控制MEMS扫描镜10010将各束入射光束转换为对应的测量圆环光束和/或参考圆环光束,并将各束测量圆环光束和/或各束参考圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000和MEMS扫描镜10010可以在控制单元1002的控制下,配合形成各束测量圆环光束和/或各束参考圆环光束。其中,MEMS扫描镜10010可以为二维MEMS扫描镜。即控制单元1002同步控制光源发射单元1000和MEMS扫描镜10010,采用逐行扫描的方式,实现由预设像素点组成的二维扫描图像,如果预设像素点形成的轨迹为测量圆环,则该二维扫描图像即为测量圆环图像。以及,如果预设像素点形成的轨迹为参考圆环,则该二维扫描图像即为参考圆环图像。上述扫描方式使得测量圆环图像中预设像素点的显示时间与空间坐标得以确定,以及,参考圆环光束中预设像素点的显示时间与空间坐标得以确定。其中,测量圆环图像中预设像素点的空间坐标,以及,参考圆环图像中预设像素点的空间坐标均由MEMS扫描镜10010的偏角确定。测量圆环图像中预设像素点的显示时间,以及,参考圆环图像中预设像素点的空间坐标均由光源发射单元1000确定。即可以通过控制单元1002同步控制光源发射单元1000和MEMS扫描镜10010,实现预设像素点的显示时间与空间坐标的对应。当预设像素点不同时,将形成对应的测量圆环图像和参考圆环图像。将各测量圆环图像和各参考圆环图像分别投影至被测部位,即形成各束测量圆环光束和各束参考圆环光束。需要说明的是,上述预设像素点的空间坐标和显示时间可以体现在工作状态指令中。
如图24所示,根据本公开的实施例,光束调节单元1001包括扫描振镜组件10011。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至扫描振镜组件10011,以及,根据对应的工作状态指令控制扫描振镜组件10011将各束 入射光束转换为对应的测量圆环光束和/或参考圆环光束,并将各束测量圆环光束和/或各束参考圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000和扫描振镜组件10011可以在控制单元1002的控制下,配合形成各束测量圆环光束和/或各束参考圆环光束。即由控制单元1002根据工作状态指令,控制光源发射单元1000发出的与每个预设波长对应的一束测量圆环光束和/或一束参考圆环光束,通过由控制单元1002根据工作状态指令控制的扫描振镜组件10011将各束入射光束投射到扫描位置,入射光束在扫描位置为点状光斑,通过对点状光斑的360°环形扫描,且扫描形成的圆环光束的尺寸可以变,即形成对应的测量圆环光束和/或参考圆环光束。
如图24所示,根据本公开的实施例,扫描振镜组件10011包括第一双轴扫描振镜100110和第二双轴扫描振镜100111。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至第一双轴扫描振镜100110。
控制单元1002,配置为根据对应的工作状态指令控制第一双轴扫描振镜100110沿X轴偏转第一预设角度,实现各束入射光束沿X轴方向偏转第一预设角度,并将偏转后的各束入射光束投射至第二双轴扫描振镜100111。
控制单元1002,配置为根据工作状态指令控制第二双轴扫描振镜100111沿Y轴方向偏转第二预设角度,形成各束测量圆环光束和/或各束参考圆环光束,并将各束测量圆环光束和/或各束参考圆环光束投射至被测部位。
根据本公开的实施例,扫描振镜组件10011包括第一双轴扫描振镜100110和第二双轴扫描振镜100111,控制单元1002可以控制第一双轴扫描振镜100110和第二双轴扫描振镜100111,以实现对入射光束的360°偏转。其中,控制单元1002可以控制第一双轴扫描振镜100110沿X轴偏转第一预设角度,实现各束入射光束随第一双轴扫描振镜100110沿X轴方向偏转第一预设角度,并将偏转后的各束入射光束投射至第二双轴扫描振镜100111。控制单元1002可以控制第二双轴扫描振镜100111沿Y轴偏转第二预设角度,实现偏转后的各束入射光束随第二双轴扫描振镜100111沿Y轴方向偏转第二预设角度,形成各束测量圆环光束和/或各束参考圆环光束。上述所述的第一预设角度与第二预设角度可以配置为确定入射光束投射到扫描位置,入射光束在扫描位置为点状光斑。控制单元1002可以控制第一双轴扫描振镜100110和第二双轴扫描振镜100111的偏转角度和偏转方向,实现点状光斑在被测部位的表面的360°旋转,即实现环形扫描。并且,实现扫描形成尺寸可以变的圆环光束,即形成对应的测量圆 环光束和/或参考圆环光束。
根据本公开的实施例,控制单元1002可以根据不同的工作状态指令,控制第一双轴扫描振镜100110和第二双轴扫描振镜100111偏转不同的偏转角度和偏转方向,实现形成各束测量圆环光束和/或各束参考圆环光束。
根据本公开的实施例,第一双轴扫描振镜100110的尺寸可以小于第二双轴扫描振镜100111的尺寸。通常入射光束先投射的振镜的尺寸可以以很小,只需比入射光束的尺寸大即可以。其中,入射光束先投射的振镜可以称为第一个双轴扫描振镜。相应的,后投射的振镜可以称为第二个双轴扫描振镜。由于X轴扫描速度快,而质量小的振镜惯性小,因此,第一个双轴扫描振镜可以配置为X轴扫描。由于第二个双轴扫描振镜要接收第一个双轴扫描振镜扫描的全部范围,因此,第二个双轴扫描振镜的尺寸需要比第一个双轴扫描振镜的尺寸大,可以配置为Y轴扫描。在本公开实施例中,第一双轴扫描振镜100110可以作为第一个双轴扫描振镜使用。第二双轴扫描振镜100111可以作为第二个双轴扫描振镜使用。基于上述,第一双轴扫描振镜100110可以配置为X轴扫描。第二双轴扫描振镜100111可以配置为Y轴扫描。
如图25所示,根据本公开的实施例,光束调节单元1001包括旋转反射镜10012和第一电压调焦透镜10013。
控制单元1002,配置为针对被测对象的被测部位,在被测部位,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至旋转反射镜10012。
控制单元1002,配置为根据对应的工作状态指令控制旋转反射镜10012以不同角度旋转,以将各束入射光束转换为对应的原始圆环光束,并将各束原始圆环光束投射至第一电压调焦透镜10013。
控制单元1002,配置为根据对应的工作状态指令控制第一电压调焦透镜10013将各束原始圆环光束的内半径或外半径调节至对应的测量距离,得到各束测量圆环光束,和/或,将各束原始圆环光束的内半径或外半径调节至对应的参考距离,得到各束参考圆环光束,并将各束测量圆环光束和/或各束参考圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000、旋转反射镜10012和第一电压调焦透镜10013可以在控制单元1002的控制下,配合形成各束测量圆环光束和/或各束参考圆环光束。如图25所示,光源发射单元1000可以配置为发出各个预设波长下的入射光束,各束入射光束通过旋转反射镜10012转换为对应的原始圆环光束继续传输,即控制单元1002可以控制旋转反射镜10012实现对各束入射光束的360°旋转扫描形成原始圆环光束。各束原始圆环光束通 过第一电压调焦透镜10013后形成对应的测量圆环光束和/或参考圆环光束。上述通过控制第一电压调焦透镜10013的焦距,调节原始圆环光束的尺寸,以实现形成各束测量圆环光束和/或各束参考圆环光束。
根据本公开的实施例,每个工作状态指令由控制单元1000根据第四状态关系表生成,第四状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束测量圆环光束与第一电压调焦透镜10013的工作电压之间的对应关系,和/或,各束参考圆环光束与第一电压调焦透镜10013的工作电压之间的对应关系。
根据本公开的实施例,可以预先构建第四状态关系表,第四状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束测量圆环光束与第一电压调焦透镜10013的工作电压之间的对应关系,和/或,各束参考圆环光束与第一电压调焦透镜10013的工作电压之间的对应关系。控制单元1002可以根据第四状态关系表,生成工作状态指令,进而根据工作状态指令,控制旋转反射镜10012、第一电压调焦透镜10013和光源发射单元1000的工作状态。
根据本公开的实施例,上述光束调节单元1001可以包括MEMS扫描镜10010。或者,光束调节单元1001可以包括扫描振镜组件10011。或者,光束调节单元1001可以包括旋转反射镜10012和第一电压调焦透镜10013。在控制单元1002的控制下,上述分别与光源发射单元1000配合,实现通过点状光斑扫描的方式形成测量圆环光束和/或参考圆环光束。
如图26所示,根据本公开的实施例,光束调节单元1001包括微镜片阵列10014和成像透镜10015。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至微镜片阵列10014,以及,根据对应的工作状态指令控制微镜片阵列10014将各束入射光束转换为对应的测量圆环光束和/或参考圆环光束,并通过成像透镜10015将各束测量圆环光束和/或各束参考圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000和微镜片阵列10014可以在控制单元1002的控制下,配合形成各束测量圆环光束和/或各束参考圆环光束。即由控制单元1002根据工作状态指令,控制光源发射单元1000发出的与每个预设波长对应的入射光束,通过由控制单元1002根据工作状态指令控制微镜片阵列10014上形成与各束测量圆环光束和/或各束参考圆环光束所对应的微镜片处于开状态,处于开状态的微镜片将各束入射光束反射出去,形成对应的各束测量圆环光束和/或各束参考圆环光束。通过成像透镜10015将各束测量圆环光束和/或各束参考圆环光束投射至被测部位。上述通过控制微镜片阵列10014上处于开状态的微镜 片,实现形成各束测量圆环光束和/或各束参考圆环光束。
如图26所示,根据本公开的实施例,光束调节单元1001还包括扩束透镜组10016。
控制单元1002,配置为针对被测对象的被测部位,在被测部位的表面,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至扩束透镜组10016。
扩束透镜组10016,配置为对各束入射光束进行扩束,并将扩束后的各束入射光束投射至微镜片阵列10014,以使各束入射光束在微镜片阵列10014的投射覆盖微镜片阵列10014。
控制单元1002,配置为根据对应的工作状态指令控制微镜片阵列10014将各束入射光束转换为对应的测量圆环光束和/或参考圆环光束,并通过成像透镜10015将各束测量圆环光束和/或各束参考圆环光束投射至被测部位。
根据本公开的实施例,为了实现入射光束在微镜片阵列10014上的投射可以覆盖微镜片阵列10014,可以将设置扩束透镜组10016,通过扩束透镜组10016对入射光束进行扩束实现。
根据本公开的实施例,每个工作状态指令由控制单元1002根据第五状态关系表生成,第五状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束测量圆环光束与微镜片阵列10014中处于开状态的微镜片之间的对应关系,和/或,各束参考圆环光束与微镜片阵列10014中处于开状态的微镜片之间的对应关系。
根据本公开的实施例,可以预先构建第五状态关系表,第五状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束测量圆环光束与微镜片阵列10014中处于开状态的微镜片之间的对应关系,和/或,各束参考圆环光束与微镜片阵列10014中处于开状态的微镜片之间的对应关系。控制单元1002可以根据第五状态关系表,生成工作状态指令,进而根据工作状态指令,控制微镜片阵列10014和光源发射单元1000的工作状态。
如图27所示,根据本公开的实施例,光束调节单元1001包括锥透镜10017和第二电压调焦透镜10018。
控制单元1002,配置为针对被测对象的被测部位,在被测部位,根据对应的工作状态指令控制光源发射单元1000发出与每个预设波长对应的入射光束,并将各束入射光束投射至锥透镜10017。
锥透镜10017,配置为将各束入射光束转换为各束锥形光束,并将各束锥形光束投射至第二电压调焦透镜10018,以在第二电压调焦透镜10018成像前显示为各束原始圆环光束。
控制单元1002,配置为根据对应的工作状态指令控制第二电压调焦透镜10018将各束原始圆环光束的内半径或外半径调节至对应的测量距离,得到各束测量圆环光束,和/或,将各束原始圆环光束的内半径或外半径调节至对应的参考距离,得到各束参考圆环光束,并将各 束测量圆环光束和/或各束参考圆环光束投射至被测部位。
根据本公开的实施例,光源发射单元1000和第二电压调焦透镜10018可以在控制单元1002的控制下,配合形成各束测量圆环光束和/或各束参考圆环光束。如图27所示,光源发射单元1000可以配置为发出各个预设波长下的入射光束,各束入射光束通过锥透镜10017后转换为对应的锥形光束继续传输,各束锥形光束在接收面上投射为对应的原始圆环光束。各束原始圆环光束通过第二电压调焦透镜10018后分别形成对应的测量圆环光束和/或参考圆环光束。上述通过控制第二电压调焦透镜10018的焦距,实现形成各束测量圆环光束和/或各束参考圆环光束。
根据本公开的实施例,每个工作状态指令由控制单元1002根据第六状态关系表生成,第六状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束测量圆环光束与第二电压调焦透镜10018的工作电压之间的对应关系,和/或,各束参考圆环光束与第二电压调焦透镜10018的工作电压之间的对应关系。
根据本公开的实施例,可以预先构建第六状态关系表,第六状态关系表存储有针对被测对象的被测部位,与每个预设波长对应的各束测量圆环光束与第二电压调焦透镜10018的工作电压之间的对应关系,和/或,各束参考圆环光束与第二电压调焦透镜10018的工作电压之间的对应关系。控制单元1002可以根据第六状态关系表,生成工作状态指令,进而根据工作状态指令,控制第二电压调焦透镜10018和光源发射单元1000的工作状态。
根据本公开的实施例,第三确定模块18包括差分子模块和确定子模块。
差分子模块,配置为针对每个所述预设波长,将预设波长下的第二光强测量值和第二光强参考值进行差分运算,得到光强差分值。
确定子模块,配置为根据各个预设波长下的光强差分值,确定待测组织成分的浓度。
根据本公开的实施例,差分子模块和确定子模块的具体处理过程,可以参见上文针对组织成分无创检测方法相应部分的说明,在此不再具体赘述。
如图7和图8,以及,图15和图16所示,根据本公开的实施例,感光面与被测部位的表面接触,或者,感光面与被测部位的表面非接触。
根据本公开的实施例,接触式检测可以包括如下两种方式。方式一、感光面与被测部位的表面接触。可以参见图16;方式二、感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面接触。可以参见图7。非接触式检测可以包括如下两种方式。方式一、感光面与被测部位的表面非接触,且,感光面未通过导光部获取第一光强值。可以参见图15;方式二、感光面设置于导光部的第一端,且,导光部的第二端与被测部位的表面非接触。可以参见图8。
如图28和29所示,根据本公开的实施例,该组织成分无创检测装置2还包括导光部12。感光面设置于导光部12的第一端,导光部12的第一端与被测部位的表面非接触,导光部12的第二端与被测部位的表面接触或非接触,导光部12的第一端与导光部12的第二端为相对的端面。
根据本公开的实施例,需要说明的是,对将感光面设置于导光部12的第一端上的说明可以参见上文对应部分,在此不再具体赘述。
如图35所示,根据本公开的实施例,感光面与被测部位的表面非接触。该组织成分无创检测装置2还包括第一挡光部13。第一挡光部13设置于感光面与被测部位的表面之间的间隙区域,且,第一挡光部13与被测部位的表面接触。感光面设置于第一挡光部13的内部。第一挡光部13与感光面一体或第一挡光部13与感光面分立。
根据本公开的实施例,针对第一挡光部13的具体说明可以参见上文对应部分,在此不再具体赘述。
如图31所示,根据本公开的实施例,导光部12的第二端与被测部位的表面非接触。该组织成分无创检测装置2还包括第二挡光部14。第二挡光部14设置于导光部12与被测部位的表面之间的间隙区域,第二挡光部14的第一端与导光部12的第二端接触,第二挡光部14的第二端与被测部位的表面接触,第二挡光部14的第二端与第二挡光部14的第一端为相对的端面。
根据本公开的实施例,对将第二挡光部14的说明可以参见上文对应部分,在此不再具体赘述。
图36是根据本公开实施例的一种可穿戴设备的结构示意图,本实施例可以适配置为提高待测组织成分浓度的检测精度的情况。
如图36所示,该可穿戴设备3包括本体30和本公开实施例所述的组织成分无创检测装置2。组织成分无创检测装置2设置于本体上30上,组织成分无创检测装置2包括第三获取模块17和第三确定模块18。下面结合附图对其结构和工作原理进行说明。
可穿戴设备3佩戴于被测部位。
第三获取模块17,配置为针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个测量距离和每个参考距离根据本公开实施例所述的装置所确定,预设波长的数量为至少一个。
第三确定模块18,配置为根据各个预设波长下的第二光强测量值和/或第二光强参考值,确定待测组织成分的浓度。
根据本公开的实施例,组织成分无创检测装置2可以设置在本体30上,当需要采用组织 成分无创检测装置2进行组织成分检测时,可以将可穿戴设备3佩带于被测部位。并且,由于采用组织成分无创检测装置2进行检测,易受到检测条件的影响,进而影响检测精度,因此,为了保证检测条件的稳定,以进一步提高检测精度,可以将该组织成分无创检测装置2进行固定,以使被测部位与组织成分无创检测装置2之间的位置关系为预设关系。上述可以通过将组织成分无创检测装置1设置在本体30上实现位置的固定,可以实现保证检测条件的稳定性,进而可以提高检测精度。此外,组织成分无创检测装置2的结构和工作原理参见上文针对无创检测装置2的说明,在此不再具体赘述。
根据本公开的实施例,可穿戴设备3还可以包括显示模块,显示模块可以与第三确定模块18通信连接,第三确定模块18可以将待测组织成分的浓度发送至显示模块,显示模块可以显示待测组织成分的浓度,以使被测对象可以通过显示模块获知待测组织成分的浓度。此外,可穿戴设备3还可以包括语音模块,语音模块可以与第三确定模块18通信连接,第三确定模块18可以将待测组织成分的浓度发送至语音模块,语音模块可以根据待测组织成分的浓度,生成语音指令,并播放该语音指令,以使被测对象可以获知待测组织成分的浓度。
本实施例的技术方案,由于检测装置的体积的大幅度减小,使得检测装置可以设置在可穿戴设备上,进而容易佩戴与固定在被测部位上,可以保证检测条件的稳定性,相应的,提高了检测条件的稳定性,此外,也实现了便携检测。在此基础上,由于针对被测对象的被测部位,可以准确获取与每个预设波长对应测量距离和/或参考距离,因此,根据准确确定的测量距离和/或参考距离,实现了第二光强测量值和/或第二光强参考值的准确确定。由于根据准确确定的第二光强测量值和/或第二光强参考值,确定待测组织成分浓度,因此,提高了检测精度。
图37是根据本公开实施例的一种组织成分无创检测***的结构示意图,本实施例可以适配置为提高待测组织成分浓度的检测精度的情况。
如图37所示,该组织成分无创检测***包括本公开实施例所述的可穿戴设备3和终端4。可穿戴设备3包括本体30和组织成分无创检测装置2,组织成分无创检测装置2设置于本体上30上。组织成分无创检测装置2包括第三获取模块17和第三确定模块18。第三确定模块18可以分别与第三获取模块17和终端4通信连接。下面结合附图对其结构和工作原理进行说明。
可穿戴设备3佩戴于被测部位。
第三获取模块17,配置为针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强测量值,其中,每个测量距离和每个参考距离根据本公开实施例所述的装置所确定,预设波长的数量为至少一个。
第三确定模块18,配置为对各个预设波长下的各第二光强测量值和/或各第二光强参考值进行处理,得到处理后的各个预设波长下的各第二光强测量值和/或各第二光强参考值,并将处理后的各个预设波长下的各第二光强测量值和/合伙各光强参考值发送至终端4。
终端4,配置为根据处理后的各个预设波长下的各第二光强测量值和/或各第二光强参考值,确定待测组织成分的浓度。
根据本公开的实施例,与上文不同的是,为了降低组织成分无创检测装置2的成本,可以采用可穿戴设备3与终端4配合的方式实现确定待测组织成分的浓度。即第三确定模块18对各个预设波长下的各第二光强测量值和/或各第二光强参考值进行处理,得到处理后的各个预设波长下的各第二光强测量值和/或各第二光强参考值,并将处理后的各个预设波长下的各第二光强测量值和/或各光强参考值发送至终端4,终端4可以根据处理后的各个预设波长下的各第二光强测量值和/或各第二光强参考值,确定待测组织成分的浓度。其中,第三确定模块18对各第二光强测量值和/或各第二光强参考值的处理操作可以包括电流电压转换及放大和模数转换等。终端4可以采用与本公开实施例所述的组织成分无创检测方法相同的方法,根据处理后的各第二光强测量值和/或各第二光强参考值,确定待测组织成分的浓度,在此不再具体赘述。此外,可穿戴设备3的结构和工作原理参见上文针对可穿戴设备3的说明,在此不再具体赘述。
根据本公开的实施例,终端4还可以显示待测组成成分的浓度,以使被测对象可以获知待测组织成分的浓度。终端4还可以生成语音指令,语音指令包括待测组织成分的浓度,并播放该语音指令,以使被测对象可以获知待测组织成分的浓度。
根据本公开的实施例,除了采用终端4与可穿戴设备3配合的方式实现确定待测组织成分的浓度外,还可以采用云服务器与可穿戴设备3配合的方式实现确定待测组织成分的浓度。
以上所述本公开的具体实施方式,并不构成对本公开保护范围的限定。任何根据本公开的技术构思所作出的各种其他相应的改变与变形,均应包含在本公开权利要求的保护范围内。

Claims (52)

  1. 一种组织成分无创检测中距离确定方法,包括:
    针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,其中,所述源探距离的数量为至少两个,所述预设波长的数量为至少一个;以及
    根据待测组织成分浓度引起的光强变化量的绝对值,从与所述预设波长对应的各个所述第一光强值中确定第一光强测量值和/或第一光强参考值,将与所述第一光强测量值对应的源探距离作为测量距离,将与所述第一光强参考值对应的源探距离作为参考距离,其中,所述第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,所述第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,所述待测组织成分浓度变化引起的光强变化量为所述第一光强值与对应的预设的光强预设值之间的变化量。
  2. 根据权利要求1所述的方法,其中,所述针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,包括:
    针对所述被测对象的被测部位,在所述被测部位的表面,形成与每个所述预设波长对应的至少两束目标圆环光束,其中,不同所述目标圆环光束的源探距离不同,每个所述源探距离为所述目标圆环光束的内半径或外半径,不同所述目标圆环光束具有同一几何中心;以及
    基于对应于所述几何中心的感光面,获取各束所述目标圆环光束通过所述被测部位后,从所述被测部位的表面所出射的第一光强值。
  3. 根据权利要求2所述的方法,其中,每束所述目标圆环光束由点状光斑扫描形成或由光束投影形成。
  4. 根据权利要求2或3所述的方法,其中,所述感光面与所述被测部位的表面接触或非接触。
  5. 根据权利要求4所述的方法,其中,通过如下方式实现所述感光面与所述被测部位的表面非接触:
    所述感光面设置于导光部的第一端,所述导光部的第二端与所述被测部位的表面接触或非接触,所述导光部的第二端与所述导光部的第一端为相对的端面。
  6. 根据权利要求4所述的方法,其中,所述感光面与所述被测部位的表面非接触;
    在所述基于对应于所述几何中心的感光面,获取各束所述目标圆环光束通过所述被测部位后,从所述被测部位的表面所出射的第一光强值之前,所述方法还包括:
    屏蔽干扰光。
  7. 一种组织成分无创检测中距离确定方法,包括:
    针对被测对象的被测部位,获取在每个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,其中,所述预设波长的数量为至少一个;以及
    根据各个所述预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定各个测量距离和/或各个参考距离。
  8. 一种组织成分无创检测方法,包括:
    针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个所述测量距离和每个所述参考距离是根据权利要求1~6中任一项所述的方法或权利要求7所述的方法所确定的,所述预设波长的数量为至少一个;以及
    根据各个所述预设波长下的所述第二光强测量值和/或所述第二光强参考值,确定待测组织成分的浓度。
  9. 根据权利要求8所述的方法,其中,所述针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,包括:
    针对所述被测对象的被测部位,在所述被测部位的表面,形成与每个所述预设波长对应的一束测量圆环光束和/或一束参考圆环光束,其中,每束所述测量圆环光束的内半径或外半径为对应的测量距离,每束所述参考圆环光束的内半径或外半径为对应的参考距离,每束所述测量圆环光束和每束所述参考圆环光束具有同一几何中心;以及
    基于对应于所述几何中心的感光面,获取每束所述测量圆环光束通过所述被测部位后,从所述被测部位的表面所出射的第二光强测量值,和/或,每束所述参考圆环光束通过所述被测部位后,从所述被测部位的表面所出射的第二光强参考值。
  10. 根据权利要求9所述的方法,其中,每束所述测量圆环光束由点状光斑扫描形成或由光束投影形成,以及,每束所述参考圆环光束由点状光斑扫描形成或由光束投影形成。
  11. 根据权利要求8~10中任一项所述的方法,其中,所述根据各个所述预设波长下的所述第二光强测量值和/或所述第二光强参考值,确定待测组织成分的浓度,包括:
    针对每个所述预设波长,将所述预设波长下的所述第二光强测量值和所述第二光强参考值进行差分运算,得到光强差分值;以及
    根据各个所述预设波长下的所述光强差分值,确定所述待测组织成分的浓度。
  12. 根据权利要求9或10所述的方法,其中,所述感光面与所述被测部位的表面接触或非接触。
  13. 根据权利要求12所述的方法,其中,通过如下方式实现所述感光面与所述被测部位 的表面非接触:
    所述感光面设置于导光部的第一端,所述导光部的第二端与所述被测部位的表面接触或非接触,所述导光部的第二端与所述导光部的第一端为相对的端面。
  14. 根据权利要求12所述的方法,其中,所述感光面与所述被测部位的表面非接触;
    在所述根据各个所述预设波长下的所述第二光强测量值和/或所述第二光强参考值,确定待测组织成分的浓度之前,所述方法还包括:
    屏蔽干扰光。
  15. 一种组织成分无创检测中距离确定装置,包括:
    第一获取模块,配置为针对被测对象的被测部位,获取每个预设波长在每个源探距离下的第一光强值,其中,所述源探距离的数量为至少两个,所述预设波长的数量为至少一个;以及
    第一确定模块,配置为根据待测组织成分浓度变化引起的光强变化量的绝对值,从与所述预设波长对应的各所述第一光强值中确定第一光强测量值和/或第一光强参考值,将与所述第一光强测量值对应的源探距离作为测量距离,将与所述第一光强参考值对应的源探距离作为参考距离,其中,所述第一光强测量值为待测组织成分浓度变化引起的光强变化量的绝对值最大的第一光强值,所述第一光强参考值为待测组织成分浓度变化引起的光强变化量的绝对值最小的第一光强值,所述待测组织成分浓度变化引起的光强变化量为所述第一光强值与对应的预设的光强预设值之间的变化量。
  16. 根据权利要求15所述的装置,其中,所述第一获取模块,包括:
    第一形成子模块,配置为针对所述被测对象的被测部位,在所述被测部位的表面,形成与每个所述预设波长对应的至少两束目标圆环光束,其中,不同所述目标圆环光束的源探距离不同,每个所述源探距离为所述目标圆环光束的内半径或外半径,不同所述目标圆环光束具有同一几何中心;以及
    第一获取子模块,配置为基于对应于所述几何中心的感光面,获取各束所述目标圆环光束通过所述被测部位后,从所述被测部位的表面所出射的第一光强值。
  17. 根据权利要求16所述的装置,其中,所述第一形成子模块包括光源发射单元、光束调节单元和控制单元;所述控制单元分别与所述光源发射单元和所述光束调节单元通信连接;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元和所述光束调节单元配合形成与每个所述预设波长对应的至少两束目标圆环光束。
  18. 根据权利要求17所述的装置,其中,所述光束调节单元包括MEMS扫描镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述MEMS扫描镜,以及,根据对应的所述工作状态指令控制所述MEMS扫描镜将各束所述入射光束转换为对应的目标圆环光束,并将各束所述目标圆环光束投射至所述被测部位。
  19. 根据权利要求17所述的装置,其中,所述光束调节单元包括扫描振镜组件;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述扫描振镜组件,以及,根据对应的所述工作状态指令控制所述扫描振镜组件将各束所述入射光束转换为对应的目标圆环光束,并将各束所述目标圆环光束投射至所述被测部位。
  20. 根据权利要求19所述的装置,其中,所述扫描振镜组件包括第一双轴扫描振镜和第二双轴扫描振镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述第一双轴扫描振镜;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述第一双轴扫描振镜沿X轴偏转第一预设角度,实现各束所述入射光束沿X轴方向偏转所述第一预设角度,并将偏转后的各束所述入射光束投射至所述第二双轴扫描振镜;
    所述控制单元,配置为根据所述工作状态指令控制所述第二双轴扫描振镜沿Y轴方向偏转第二预设角度,形成各束所述目标圆环光束,并将各束所述目标圆环光束投射至所述被测部位。
  21. 根据权利要求17所述的装置,其中,所述光束调节单元包括旋转反射镜和第一电压调焦透镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述旋转反射镜;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述旋转反射镜以不同角度旋转,以将各束所述入射光束转换为对应的原始圆环光束,并将各束所述原始圆环光束投射至所述第一电压调焦透镜;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述第一电压调焦透镜将各束 所述原始圆环光束的内半径或外半径调节至对应的源探距离,得到各束所述目标圆环光束,并将各束所述目标圆环光束投射至所述被测部位。
  22. 根据权利要求21所述的装置,其中,每个所述工作状态指令由所述控制单元根据第一状态关系表生成,所述第一状态关系表存储有针对所述被测对象的被测部位,与每个所述预设波长对应的各束所述目标圆环光束与所述第一电压调焦透镜的工作电压之间的对应关系。
  23. 根据权利要求17所述的装置,其中,所述光束调节单元包括微镜片阵列和成像透镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述微镜片阵列,以及,根据对应的所述工作状态指令控制所述微镜片阵列将各束所述入射光束转换为对应的目标圆环光束,并通过所述成像透镜将各束所述目标圆环光束投射至所述被测部位。
  24. 根据权利要求23所述的装置,其中,所述光束调节单元还包括扩束透镜组;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述扩束透镜组;
    所述扩束透镜组,配置为对各束所述入射光束进行扩束,并将扩束后的各束所述入射光束投射至所述微镜片阵列,以使各束所述入射光束在所述微镜片阵列的投射覆盖所述微镜片阵列;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述微镜片阵列将各束所述入射光束转换为对应的目标圆环光束,并通过所述成像透镜将各束所述目标圆环光束投射至所述被测部位。
  25. 根据权利要求24所述的装置,其中,每个所述工作状态指令由所述控制单元根据第二状态关系表生成,所述第二状态关系表存储有针对所述被测对象的被测部位,与每个所述预设波长对应的各束所述目标圆环光束与所述微镜片阵列中处于开状态的微镜片之间的对应关系。
  26. 根据权利要求17所述的装置,其中,所述光束调节单元包括锥透镜和第二电压调焦透镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述锥透镜;
    所述锥透镜,配置为将各束所述入射光束转换为各束锥形光束,并将各束所述锥形光束 投射至所述第二电压调焦透镜,以在所述第二电压调焦透镜成像前显示为各束原始圆环光束;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述第二电压调焦透镜将各束所述原始圆环光束的内半径或外半径调节至对应的源探距离,得到各束所述目标圆环光束,并将各束所述目标圆环光束投射至所述被测部位。
  27. 根据权利要求26所述的装置,其中,每个所述工作状态指令由所述控制单元根据第三状态关系表生成,所述第三状态关系表存储有针对所述被测对象的被测部位,与每个所述预设波长对应的各束所述目标圆环光束与所述第二电压调焦透镜的工作电压之间的对应关系。
  28. 根据权利要求15~27中任一项所述的装置,其中,所述感光面与所述被测部位的表面接触或非接触。
  29. 根据权利要求28所述的装置,还包括导光部;
    所述感光面设置于所述导光部的第一端,所述导光部的第二端与所述被测部位的表面接触或非接触,所述导光部的第二端与所述导光部的第一端为相对的端面。
  30. 根据权利要求28所述的装置,其中,所述感光面与所述被测部位的表面非接触;还包括第一挡光部;
    所述第一挡光部设置于所述感光面与所述被测部位的表面之间的间隙区域,且,所述第一挡光部与所述被测部位的表面接触;所述感光面设置于所述第一挡光部的内部;所述第一挡光部与所述感光面一体或所述第一挡光部与所述感光面分立。
  31. 根据权利要求29所述的装置,其中,所述导光部的第二端与所述被测部位的表面非接触;还包括第二挡光部;
    所述第二挡光部设置于所述导光部与所述被测部位的表面之间的间隙区域,所述第二挡光部的第一端与所述导光部的第二端接触,所述第二挡光部的第二端与所述被测部位的表面接触,所述第二挡光部的第二端与所述第二挡光部的第一端为相对的端面。
  32. 一种组织成分无创检测中距离确定装置,包括:
    第二获取模块,配置为针对被测对象的被测部位,获取在每个预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,其中,所述预设波长的数量为至少一个;以及
    第二确定模块,配置为根据各个所述预设波长下的组织光学参数和待测组织成分浓度变化引起的组织光学参数变化关系,确定各个测量距离和/或各个参考距离。
  33. 一种组织成分无创检测装置,包括:
    第三获取模块,配置为针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个所述测量距离和每个所 述参考距离是根据权利要求15~31中任一项所述的装置或权利要求32所述的装置所确定的,所述预设波长的数量为至少一个;以及
    第三确定模块,配置为根据各个所述预设波长下的所述第二光强测量值和/或所述第二光强参考值,确定待测组织成分的浓度。
  34. 根据权利要求33所述的装置,其中,所述第三获取模块,包括:
    第二形成子模块,配置为针对所述被测对象的被测部位,在所述被测部位的表面,形成与每个所述预设波长对应的一束测量圆环光束和/或一束参考圆环光束,其中,每束所述测量圆环光束的内半径或外半径为对应的测量距离,每束所述参考圆环光束的内半径或外半径为对应的参考距离,每束所述测量圆环光束和每束所述参考圆环光束具有同一几何中心;以及
    第二获取子模块,配置为基于对应于所述几何中心的感光面,获取每束所述测量圆环光束通过所述被测部位后,从所述被测部位的表面所出射的第二光强测量值,和/或,每束所述参考圆环光束通过所述被测部位后,从所述被测部位的表面所出射的第二光强参考值。
  35. 根据权利要求34所述的装置,其中,所述第二形成子模块包括光源发射单元、光束调节单元和控制单元;所述控制单元分别与所述光源发射单元和所述光束调节单元通信连接;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元和所述光束调节单元配合形成与每个所述预设波长对应的一束测量圆环光束和/或一束参考圆环光束。
  36. 根据权利要求35所述的装置,其中,所述光束调节单元包括MEMS扫描镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述MEMS扫描镜,以及,根据对应的所述工作状态指令控制所述MEMS扫描镜将各束所述入射光束转换为对应的测量圆环光束和/或参考圆环光束,并将各束所述测量圆环光束和/或各束所述参考圆环光束投射至所述被测部位。
  37. 根据权利要求35所述的装置,其中,所述光束调节单元包括扫描振镜组件;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述扫描振镜组件,以及,根据对应的所述工作状态指令控制所述扫描振镜组件将各束所述入射光束转换为对应的测量圆环光束和/或参考圆环光束,并将各束所述测量圆环光束和/或各束所述参考圆环光束投射至所述被测部位。
  38. 根据权利要求37所述的装置,其中,所述扫描振镜组件包括第一双轴扫描振镜和第二双轴扫描振镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述第一双轴扫描振镜;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述第一双轴扫描振镜沿X轴偏转第一预设角度,实现各束所述入射光束沿X轴方向偏转所述第一预设角度,并将偏转后的各束所述入射光束投射至所述第二双轴扫描振镜;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述第二双轴扫描振镜沿Y轴方向偏转第二预设角度,实现偏转后的各束所述入射光束沿Y轴方向偏转所述第二预设角度,形成各束所述测量圆环光束和/或各束所述参考圆环光束,并将各束所述测量圆环光束和/或各束所述参考圆环光束投射至所述被测部位。
  39. 根据权利要求35所述的装置,其中,所述光束调节单元包括旋转反射镜和第一电压调焦透镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述旋转反射镜;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述旋转反射镜以不同角度旋转,以将各束所述入射光束转换为对应的原始圆环光束,并将各束所述原始圆环光束投射至所述第一电压调焦透镜;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述第一电压调焦透镜将各束所述原始圆环光束的内半径或外半径调节至对应的测量距离,得到各束所述测量圆环光束,和/或,将各束所述原始圆环光束的内半径或外半径调节至对应的参考距离,得到各束所述参考圆环光束,并将各束所述测量圆环光束和/或各束所述参考圆环光束投射至所述被测部位。
  40. 根据权利要求39所述的装置,其中,每个所述工作状态指令由所述控制单元根据第四状态关系表生成,所述第四状态关系表存储有针对所述被测对象的被测部位,与每个所述预设波长对应的各束所述测量圆环光束与所述第一电压调焦透镜的工作电压之间的对应关系,和/或,各束所述参考圆环光束与所述第一电压调焦透镜的工作电压之间的对应关系。
  41. 根据权利要求35所述的装置,其中,所述光束调节单元包括微镜片阵列和成像透镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述微镜片阵列,以及,根据对应的所述工作状态指令控制所述微镜片阵列将各束所述入射光束转换为对应的测量圆环光束和/或参考圆环光束,并通过所述成像 透镜将各束所述测量圆环光束和/或各束所述参考圆环光束投射至所述被测部位。
  42. 根据权利要求41所述的装置,其中,所述光束调节单元还包括扩束透镜组;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位的表面,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述扩束透镜组;
    所述扩束透镜组,配置为对各束所述入射光束进行扩束,并将扩束后的各束所述入射光束投射至所述微镜片阵列,以使各束所述入射光束在所述微镜片阵列的投射覆盖所述微镜片阵列;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述微镜片阵列将各束所述入射光束转换为对应的测量圆环光束和/或参考圆环光束,并通过所述成像透镜将各束所述测量圆环光束和/或各束所述参考圆环光束投射至所述被测部位。
  43. 根据权利要求42所述的装置,其中,每个所述工作状态指令由所述控制单元根据第五状态关系表生成,所述第五状态关系表存储有针对所述被测对象的被测部位,与每个所述预设波长对应的各束所述测量圆环光束与所述微镜片阵列中处于开状态的微镜片之间的对应关系,和/或,各束所述参考圆环光束与所述微镜片阵列中处于开状态的微镜片之间的对应关系。
  44. 根据权利要求35所述的装置,其中,所述光束调节单元包括锥透镜和第二电压调焦透镜;
    所述控制单元,配置为针对所述被测对象的被测部位,在所述被测部位,根据对应的工作状态指令控制所述光源发射单元发出与每个所述预设波长对应的入射光束,并将各束所述入射光束投射至所述锥透镜;
    所述锥透镜,配置为将各束所述入射光束转换为各束锥形光束,并将各束所述锥形光束投射至所述第二电压调焦透镜,以在所述第二电压调焦透镜成像前显示为各束原始圆环光束;
    所述控制单元,配置为根据对应的所述工作状态指令控制所述第二电压调焦透镜将各束所述原始圆环光束的内半径或外半径调节至对应的测量距离,得到各束所述测量圆环光束,和/或,将各束所述原始圆环光束的内半径或外半径调节至对应的参考距离,得到各束所述参考圆环光束,并将各束所述测量圆环光束和/或各束所述参考圆环光束投射至所述被测部位。
  45. 根据权利要求44所述的装置,其中,每个所述工作状态指令由所述控制单元根据第六状态关系表生成,所述第六状态关系表存储有针对所述被测对象的被测部位,与每个所述预设波长对应的各束所述测量圆环光束与所述第二电压调焦透镜的工作电压之间的对应关系,和/或,所述参考圆环光束与各束所述第二电压调焦透镜的工作电压之间的对应关系。
  46. 根据权利要求33~45中任一项所述的装置,其中,所述第三确定模块,包括:
    差分子模块,配置为针对每个所述预设波长,将所述预设波长下的所述第二光强测量值和所述第二光强参考值进行差分运算,得到光强差分值;以及
    确定子模块,配置为根据各个所述预设波长下的所述光强差分值,确定所述待测组织成分的浓度。
  47. 根据权利要求33~45中任一项所述的装置,其中,所述感光面与所述被测部位的表面接触或非接触。
  48. 根据权利要求47所述的装置,还包括导光部;
    所述感光面设置于所述导光部的第一端,所述导光部的第二端与所述被测部位的表面接触或非接触,所述导光部的第一端与所述导光部的第二端为相对的端面。
  49. 根据权利要求47所述的装置,其中,所述感光面与所述被测部位的表面非接触;还包括第一挡光部;
    所述第一挡光部设置于所述感光面与所述被测部位的表面之间的间隙区域,且,所述第一挡光部与所述被测部位的表面接触;所述感光面设置于所述第一挡光部的内部;所述第一挡光部与所述感光面一体或所述第一挡光部与所述感光面分立。
  50. 根据权利要求48所述的装置,其中,所述导光部的第二端与所述被测部位的表面非接触;还包括第二挡光部;
    所述第二挡光部设置于所述导光部与所述被测部位的表面之间的间隙区域,所述第二挡光部的第一端与所述导光部的第二端接触,所述第二挡光部的第二端与所述被测部位的表面接触,所述第二挡光部的第二端与所述第二挡光部的第一端为相对的端面。
  51. 一种可穿戴设备,包括:本体和权利要求33~50中任一项所述的组织成分无创检测装置;所述组织成分无创检测装置设置于所述本体上;
    所述可穿戴设备佩戴于被测部位。
  52. 一种组织成分无创检测***,包括权利要求51所述的可穿戴设备和终端;所述第三确定模块分别与所述第三获取模块和所述终端通信连接;
    所述可穿戴设备佩戴于被测部位;
    所述第三获取模块,配置为针对被测对象的被测部位,获取每个预设波长在测量距离下的第二光强测量值,和/或,在参考距离下的第二光强参考值,其中,每个所述测量距离和每个所述参考距离是根据权利要求15~31中任一项所述的装置或权利要求32所述的装置所确定的,所述预设波长的数量为至少一个;
    所述第三确定模块,配置为对各个所述预设波长下的各个所述第二光强测量值和/或各个 所述第二光强参考值进行处理,得到处理后的各个所述预设波长下的各个所述第二光强测量值和/或各个所述第二光强参考值,并将处理后的各个所述预设波长下的各个所述第二光强测量值和/或各个所述光强参考值发送至所述终端;
    所述终端,配置为根据处理后的各个所述预设波长下的各个所述第二光强测量值和/或各个所述第二光强参考值,确定待测组织成分的浓度。
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CN113303793B (zh) 2022-08-26
CN115153533A (zh) 2022-10-11
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KR20220147637A (ko) 2022-11-03
US20230010403A1 (en) 2023-01-12
AU2021225292B2 (en) 2024-01-04
EP4111961A4 (en) 2023-07-05
JP7462354B2 (ja) 2024-04-05
CN113303793A (zh) 2021-08-27
CA3169517A1 (en) 2021-09-02
AU2021225292A1 (en) 2022-10-13

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