CN210077603U - Endoscope parameter acquisition system - Google Patents
Endoscope parameter acquisition system Download PDFInfo
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- CN210077603U CN210077603U CN201822175604.6U CN201822175604U CN210077603U CN 210077603 U CN210077603 U CN 210077603U CN 201822175604 U CN201822175604 U CN 201822175604U CN 210077603 U CN210077603 U CN 210077603U
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Abstract
The utility model provides an endoscope parameter acquisition system, it includes: the light outlet of the endoscope optical fiber is provided with a measuring unit, and the illuminating and exciting unit is used for providing white light for illumination for the optical fiber and sending exciting light to the measuring unit so that the measuring unit emits fluorescence; the fluorescence signal acquisition unit is used for acquiring the fluorescence signal emitted by the measurement unit, converting the fluorescence signal into an electric signal and displaying the electric signal in real time through the display unit. The endoscope is provided with a measuring unit added with a fluorescent adhesive at a light outlet of an optical fiber, the fluorescent adhesive fills the periphery of hundreds of tiny optical fibers and the light outlet of the optical fiber, the fluorescence emitted by the fluorescent adhesive can be influenced by temperature to change certain parameters emitting fluorescence, and the parameters which can be indirectly calculated by only using a fluorescent signal collecting unit to collect the change of the fluorescent wavelength of a fluorescent signal and the time length are as follows: temperature, pressure, flow, etc. to provide more parameters for the doctor to detect in the operation, provide good operation environment for the patient's purpose.
Description
Technical Field
The utility model relates to a medical device, in particular to an endoscope acquisition system.
Background
Endoscope systems are widely used in the fields of medical treatment and the like, and comprise two major parts, namely an endoscope camera system; the endoscope camera system picks up internal images of a human body through an endoscope and then displays the internal images on a display screen for a doctor to observe and use, and the endoscope lighting system is adopted; the endoscope illumination light source is connected to the endoscope light source interface through the light guide beam, and the front end of the endoscope emits light to illuminate an operation area so as to provide illumination of the operation area for the endoscope camera system.
The current endoscope has only two functions, providing a transmission image channel and a light illumination channel. However, the more parameters in the human body are known or observed by a doctor in the operation process, the more beneficial the doctor performs the operation, and the more important the doctor provides a good operation environment for the patient, for example, real-time temperature feedback of the operation area in the human body and real-time temperature monitoring of an endoscope in the human body are; pressure feedback of the surgical area within the body, etc. If the temperature of the endoscope rises and can scald patients, doctors cannot sense the abnormal change of the temperature in the human body cavity, and reasonable countermeasures cannot be taken; improper control of the pressure in the human body cavity can also cause great influence on the operation, for example, insufficient pressure in the cavity can cause the narrow visual field of the operation of a doctor, the operation space of a surgical instrument is limited to bring risks to the operation, and overhigh pressure in the cavity can cause damage to the visceral tissues of a patient.
In the related art, an endoscope probe capable of measuring the temperature of a human body is also disclosed, and the temperature inside the human body is measured by the endoscope probe. However, the endoscope is adhered with a temperature-sensitive fluorescent material at the front end, and the adhesion at the front end of the endoscope is inconvenient, for example, since the adhesion at the front end of the endoscope inevitably affects the image display quality of the endoscope, the detail of the tissue with reduced definition cannot be distinguished, the operation of a doctor is affected by the displayed image fog, so that the doctor is difficult to distinguish the boundary of the visceral organs, and the misoperation of the doctor is caused. This adhesion also affects the passage of illumination light, decreases the illumination brightness, blocks light of a certain wavelength, and the like, and ultimately affects the quality of an image displayed by the endoscopic imaging system. Furthermore, because the endoscope is a surgical instrument which is used for many times after being sterilized, the performance of the endoscope may be reduced in the using process due to the sterilizing effect, and even the endoscope falls into the human body in the operation, which causes unnecessary damage to the patient. The doping of temperature fluorescent materials in the plano-concave lens at the tip of the endoscope also causes the quality of the displayed image to be reduced, and increases the accidental risk of the operation of the doctor.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides an endoscope which can provide more parameters for the doctor to detect during the operation and provide a good operation environment for the patient.
To achieve the above and other related objects, the present invention provides an endoscope parameter acquisition system, comprising: the endoscope is internally provided with an image transmission channel, optical fibers are arranged around the image transmission channel, a measuring unit is arranged at a light outlet of each optical fiber, and a light source interface of the endoscope is connected with the light guide beam; the illumination and excitation unit is used for providing white light for illumination for the optical fiber and emitting exciting light to the measurement unit so as to enable the measurement unit to emit fluorescence; and the fluorescent signal acquisition unit is used for acquiring the fluorescent signal emitted by the measurement unit, converting the fluorescent signal into an electric signal and displaying the electric signal in real time through the display unit.
Preferably, the illumination and excitation unit comprises a signal processing control unit, the signal processing control unit is connected with a first drive controller and a second drive controller, the first drive controller is connected with a white light source, the drive controller is connected with a modulated laser light source, light emitted by the white light source and excitation light emitted by the modulated laser light source sequentially pass through a dichroic filter, a transflective filter and a converging lens group and then are focused on a light inlet of the light guide beam, and the dichroic filter is used for transmitting white light emitted by the white light source, reflecting the excitation light emitted by the modulated excitation light source and enabling the light path centers of the dichroic filter and the converging lens to coincide; the transflective filter is used for transmitting the light coming from the direction of the bicolor sheet and reflecting the light coming from the direction of the light guide beam.
Preferably, the fluorescence signal acquisition unit comprises a first photodetector, a lens group and an optical filter, wherein the optical filter is used for filtering white light and exciting light in the light guide beams reflected by the transflective filter and allowing fluorescence emitted by the measurement unit to pass through; the lens is used for focusing the transmitted fluorescence on a first photoelectric detector, the first photoelectric detector is connected with the signal processing control unit, and the signal processing control unit is connected with the display unit.
Preferably, the device further comprises a second photodetector, the second photodetector is connected with the signal processing control unit, and the second photodetector is used for collecting an excitation light signal emitted by the reflection modulation excitation light source and converting the excitation light signal into an electrical signal.
Preferably, the white light source can be a xenon lamp, a halogen lamp, a white LED, a tri-color red, green and blue LED, a white LED plus a red LED, or a combination of other light sources capable of forming white light.
Preferably, the measuring unit is a fluorescent agent or a fiber grating temperature sensor.
Preferably, the modulation excitation light source is a laser light source or an LED light source.
As described above, the endoscope parameter acquisition system has the following advantageous effects: this endoscope encapsulates the optic fibre around the endoscope image channel, the measurement element who has added the fluorescence adhesive is set up at the light-emitting outlet of optic fibre, the fluorescence adhesive fills in around several hundred tiny optic fibres and the light-emitting outlet department of optic fibre, the fluorescence that this fluorescence adhesive sent can receive the influence of temperature and change some parameters that send fluorescence, for example, the wavelength that sends fluorescence after the temperature change changes, the intensity that sends fluorescence also can change, it also can change to send fluorescence time length, and the wavelength of fluorescence and the time length of sending fluorescence can not receive the influence of transmission channel leaded light beam, the fluorescence wavelength change that only needs to use fluorescence signal acquisition unit to gather fluorescence signal like this and the parameter that time length can indirect calculation like: temperature, pressure, flow, etc. to provide more parameters for the doctor to detect in the operation, provide good operation environment for the patient's purpose.
Drawings
Fig. 1 is a schematic structural view of an endoscope according to an embodiment of the present invention.
Fig. 2 is a schematic view of the overall structure of the embodiment of the present invention.
Element number description: 1. an endoscope card holder; 2. an image transmission channel; 3. an optical fiber; 4. a measuring unit; 5. an endoscope; 6. conducting light beam guiding; 7. a transflective filter sheet; 8. an optical filter; 9. a lens group; 10. A first photodetector; 11. a signal processing control unit; 12. a first drive controller; 13. a white light source; 14. a two-color patch; 15. modulating an excitation light source; 16. a second drive controller; 17. a second photodetector; 18. a display unit; 19. a converging lens group.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 and 2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 1 and 2, the present patent discloses an endoscope parameter acquisition system, which includes: an endoscope 5, and an illumination and excitation unit and a fluorescence signal acquisition unit connected to the endoscope 5 via a light guide 6. The structure of the endoscope 5 is shown in fig. 1, one end of the endoscope is an endoscope card holder 1, the endoscope card holder 1 is used for connecting with an image display device, the center of the endoscope 5 is an image transmission channel 2, and an illumination channel consisting of a plurality of tiny optical fibers 3 is arranged around the image transmission channel 2. The measuring unit 4 is arranged at the light outlet of the optical fiber 3, the measuring unit 4 is added with a fluorescent adhesive, the fluorescent adhesive is filled around hundreds of small optical fibers 3 and at the light outlet of the optical fibers, and the fluorescent light emitted by the fluorescent adhesive can be influenced by the temperature to change certain parameters of the emitted fluorescent light, for example, the wavelength of the emitted fluorescent light changes after the temperature changes, the intensity of the emitted fluorescent light also changes, and the time for emitting the fluorescent light also changes. The light source interface of the endoscope 5 is connected to the light guide bundle 6. The illumination and excitation unit is used for providing white light for illumination for the optical fiber and sending excitation light to the measurement unit 4 so that the measurement unit 4 emits fluorescence; and the fluorescence signal acquisition unit is used for acquiring the fluorescence signal emitted by the measurement unit, converting the fluorescence signal into an electric signal and displaying the electric signal in real time through the display unit 18.
As a specific embodiment, the lighting and excitation unit includes a signal processing control unit 11, and the signal processing control unit 11 is connected to the first driving controller 12 and the second driving controller 16. The first driving controller 12 is connected with the white light source 13, the first driving controller 12 controls the white light source 13 to emit light, the second driving controller 16 is connected with the modulated laser light source 15, and the second driving controller 16 controls the modulated laser light source 15 to emit light. The white light emitted from the white light source 13 and the excitation light emitted from the modulated laser light source 15 sequentially pass through the dichroic filter 14, the transflective filter 7 and the converging lens group 19 and are focused on the light inlet of the light guide beam 6. The dichroic filter 14 transmits white light from the white light source 13 and reflects excitation light from the modulated excitation light source 15, and the centers of the light paths of the white light and the excitation light coincide with each other. The transflective filter 7 is used for transmitting the light coming from the dichroic filter 14 and reflecting the light coming from the light guide 6, and the converging lens group 19 is used for focusing the light transmitted from the dichroic filter 14 on the light inlet of the light guide 6.
The fluorescence signal acquisition unit comprises a first photoelectric detector 10, a lens group 9 and an optical filter 8, wherein the optical filter 8 is used for filtering white light and exciting light in the light guide beams reflected by the transflective filter 7 and allowing the measurement unit 4 to emit fluorescence to pass through; the lens 9 is used for focusing the transmitted fluorescence on the first photoelectric detector 10, the first photoelectric detector 10 is connected with the signal processing control unit 11, the first photoelectric detector 10 is used for detecting the intensity, power and wavelength of the light and converting the fluorescence into a fluorescence electric signal, the signal processing control unit 11 is connected with the display unit 18, and the display unit 18 is used for displaying the measurement result.
The acquisition system further comprises a second photoelectric detector 17, the second photoelectric detector 17 is connected with the signal processing control unit 11, the second photoelectric detector 17 is used for acquiring an excitation light signal emitted by the reflection modulation excitation light source 15 and converting the excitation light signal into an electric signal, so that the excitation light can be detected in real time through the second photoelectric detector 17, and the detection precision can be further improved through comparison between the excitation light and a fluorescence electric signal.
The white light source 13 may be a xenon lamp, a halogen lamp, a white light LED, a tri-color red-green-blue LED, a white light LED plus a red LED, or any other combination of light sources capable of forming white light. The white light source functions in two ways: the fluorescence excitation light source is used for providing an illumination light source required by the endoscope and is used for mutually matching with the modulation excitation light source 15 to excite the fluorescent agent of the measurement unit 4 to serve as an excitation light source. The measuring unit 4 can be filled with fluorescent agent or a fiber grating temperature sensor. The modulated excitation light source 15 is a laser light source or an LED light source.
The endoscope acquisition system has the working principle that: the signal processing control unit 11 respectively controls a first driving controller 12 and a second driving controller 16 of the two light sources, the white light source 13 can be always in a normally bright state, and can also be in a pulse light emitting working state in cooperation with a fluorescence excitation light source, light emitted by the white light source 13 penetrates through the dichroic filter 14, light emitted by the modulated excitation light source 15 is refracted through the dichroic filter 14 and then coincides with a white light path penetrating through the dichroic filter 14, the two coincident lights penetrate through the transflective filter 7 and are focused on a light inlet of the light guide beam 6 through the converging lens group 19, the light guide beam 6 is connected to a light source interface of the endoscope 5, the white light emits light from the front end of the endoscope 5 to illuminate an operation area, the modulated excitation light irradiates on the measuring unit 4 through the optical fiber 3 inside the endoscope 5, a fluorescent agent in the measuring unit 4 emits fluorescence due to the irradiation of the excitation light, and the fluorescence is transmitted to the light guide beam 6, the fluorescence is refracted by the converging lens group 19 through the transflective filter 7 to the optical filter 8, the fluorescence is filtered by the optical filter 8 and is converged on the first photoelectric detector 10 through the non-fluorescent transmitting lens group 9, the first photoelectric detector 10 converts the fluorescence into a fluorescence electric signal, and the fluorescence electric signal is subjected to operation processing by the signal processing control unit 11 and then is sent to the display unit 18 for real-time display.
In the system, a fluorescent adhesive is added to a measuring unit 4, the fluorescent adhesive is filled around hundreds of tiny optical fibers and at light outlets of the optical fibers, and the fluorescence emitted by the fluorescent adhesive can be influenced by temperature to change certain parameters of the emitted fluorescence, for example, the wavelength of the emitted fluorescence changes after the temperature changes, the intensity of the emitted fluorescence also changes, and the time for the emitted fluorescence also changes. The light guide bundle 6 is a light channel for connecting the endoscope and the endoscope light source, and the light guide bundle is also packaged together by hundreds of tiny optical fibers and only serves as a light transmission channel. According to the use characteristics of the endoscope light source or the method for not changing the use mode of the endoscope light source at present, the fluorescence measurement parameter cannot be the fluorescence intensity, because different specifications of the light guide beam 6 or the use time of the light guide beam can influence the light transmission efficiency, the measured fluorescence intensity is inaccurate, and the wavelength and the fluorescence emitting time of the fluorescence cannot be influenced by the light guide beam of the transmission channel. Therefore, the actual temperature value of the fluorescence test point can be calculated by measuring the offset of the fluorescence wavelength or the fluorescence time. Similarly, parameters which can be indirectly calculated according to the measured fluorescence wavelength change and the time length can be as follows: temperature, pressure, flow rate, etc. The measuring unit 4 can be a fluorescent agent or a fiber grating temperature sensor which is available on the market, and the modulated excitation light can be selected from a laser light source, an LED light source and the like according to different modulated excitation light sources 15 which are required by selecting different fluorescent agents.
This endoscope encapsulates the optic fibre around the endoscope image channel, the measurement element who has added the fluorescence adhesive is set up at the light-emitting outlet of optic fibre, the fluorescence adhesive fills in around several hundred tiny optic fibres and the light-emitting outlet department of optic fibre, the fluorescence that this fluorescence adhesive sent can receive the influence of temperature and change some parameters that send fluorescence, for example, the wavelength that sends fluorescence after the temperature change changes, the intensity that sends fluorescence also can change, it also can change to send fluorescence time length, and the wavelength of fluorescence and the time length of sending fluorescence can not receive the influence of transmission channel leaded light beam, the fluorescence wavelength change that only needs to use fluorescence signal acquisition unit to gather fluorescence signal like this and the parameter that time length can indirect calculation like: temperature, pressure, flow, etc. to provide more parameters for the doctor to detect in the operation, provide good operation environment for the patient's purpose. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. An endoscopic parameter acquisition system, comprising:
the endoscope (5) is internally provided with an image transmission channel, optical fibers are arranged around the image transmission channel, a measuring unit is arranged at a light outlet of each optical fiber, and a light source interface of the endoscope is connected with the light guide beam;
the illumination and excitation unit is used for providing white light for illumination for the optical fiber and emitting exciting light to the measurement unit so as to enable the measurement unit to emit fluorescence;
and the fluorescent signal acquisition unit is used for acquiring the fluorescent signal emitted by the measurement unit, converting the fluorescent signal into an electric signal and displaying the electric signal in real time through the display unit.
2. The endoscopic parameter acquisition system of claim 1 wherein: the illumination and excitation unit comprises a signal processing control unit, the signal processing control unit is connected with a first drive controller and a second drive controller, the first drive controller is connected with a white light source, the drive controller is connected with a modulated laser light source, light emitted by the white light source and excitation light emitted by the modulated laser light source sequentially pass through a bicolor sheet, a transflective filter sheet and a converging lens group and then are focused on a light inlet of the light guide beam, the bicolor sheet is used for transmitting white light emitted by the white light source (13), reflecting the excitation light emitted by the modulated excitation light source (15) and enabling the centers of the light paths of the bicolor sheet and the white light source to coincide; the transflective filter is used for transmitting the light coming from the direction of the bicolor sheet (14) and reflecting the light coming from the direction of the light guide beam (6).
3. The endoscopic parameter acquisition system of claim 2 wherein: the fluorescence signal acquisition unit comprises a first photoelectric detector, a lens group and an optical filter, wherein the optical filter is used for filtering white light and exciting light in the light guide beams reflected by the transflective filter and allowing fluorescence emitted by the measurement unit to pass through; the lens is used for focusing the transmitted fluorescence on a first photoelectric detector, the first photoelectric detector is connected with the signal processing control unit, and the signal processing control unit is connected with the display unit.
4. The endoscopic parameter acquisition system of claim 2 wherein: the device also comprises a second photoelectric detector, wherein the second photoelectric detector is connected with the signal processing control unit and is used for collecting an excitation light signal emitted by the reflection modulation excitation light source (15) and converting the excitation light signal into an electric signal.
5. An endoscopic parameter acquisition system as claimed in any one of claims 2, 3 or 4, wherein: the white light source can be a xenon lamp, a halogen lamp, a white light LED, a three-color red-green-blue LED, a white light LED plus a red LED, or a combination of light sources capable of forming white light.
6. An endoscopic parameter acquisition system as claimed in any one of claims 2, 3 or 4, wherein: the measuring unit is a fluorescent agent or a fiber grating temperature sensor.
7. An endoscopic parameter acquisition system as claimed in any one of claims 2, 3 or 4, wherein: the modulation excitation light source is a laser light source or an LED light source.
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| CN201822175604.6U CN210077603U (en) | 2018-12-24 | 2018-12-24 | Endoscope parameter acquisition system |
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| CN201822175604.6U CN210077603U (en) | 2018-12-24 | 2018-12-24 | Endoscope parameter acquisition system |
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| CN210077603U true CN210077603U (en) | 2020-02-18 |
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Address after: 215000 No.8 Zhujiawan street, Suzhou City, Jiangsu Province (room 1001, room 1002, room 1003, room 1004, block B, building 2) Patentee after: SUZHOU CARING MEDICAL Co.,Ltd. Address before: 4 / F, No.6 Yuping Road, science and Technology City, Suzhou high tech Zone, Jiangsu Province 215000 Patentee before: SUZHOU CARING MEDICAL Co.,Ltd. |
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