CN215348915U - Flexible array pulse wave sensing device - Google Patents
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Abstract
The utility model discloses a flexible array pulse wave sensing device, and relates to the technical field of human body life health monitoring equipment. The utility model discloses a flexible array pulse wave sensing device which comprises a sensor module, a data acquisition processing and transmission module, a power supply module and a protective shell, wherein the sensor module comprises a first flexible substrate and a piezoelectric/triboelectric flexible array sensing unit, the piezoelectric/triboelectric flexible array sensing unit is positioned on the first flexible substrate, the piezoelectric/triboelectric flexible array sensing unit is provided with a plurality of piezoelectric/triboelectric sensors which are arranged in an array manner, and the piezoelectric/triboelectric flexible array sensing unit is used for detecting pulse wave signals of the radial artery size, closing position and size position of a wrist of a detected person. The flexible array pulse wave sensing device has the advantages of high sensitivity, low power consumption, capability of ensuring that pulse wave signals of the cun position, the guan position and the chi position of a detected person are effectively collected, softness, skin adhesion, comfort in wearing and convenience in use.
Description
Technical Field
The utility model relates to the technical field of human body life health monitoring equipment, in particular to a flexible array pulse wave sensing device.
Background
The current society develops rapidly, and people's living standard is also followed many health problems simultaneously to showing and improving. Both Chinese and Western medicine researches prove that the waveform and the conduction rate of the pulse wave are directly related to the blood circulation of the cardiovascular vessels in the human body. The pulse detection of traditional Chinese medicine has a history of more than two thousand years in China, but the traditional Chinese medicine pulse diagnosis is greatly influenced by experience and subjective factors of doctors, and a unified diagnosis standard is difficult to establish. With the vigorous development of flexible materials in recent decades, experts and scholars develop different pulse condition diagnostic instruments for pulse wave diagnosis, so that pulse diagnosis is objective.
However, in view of current development, the existing pulse wave detection sensor cannot simultaneously realize the three positions of cunguan chi and chi which have high detection sensitivity, are convenient to wear and can be accurately positioned. In order to realize accurate positioning of the three positions of the inch, the meter and the ruler, the array is required to be introduced, and data loss of sensitive parts during detection cannot be caused by simultaneous sensing of multiple points of the array type sensor. The three positions of the inch-off size are accurately positioned by the array sensor introduced in the patents with the publication numbers of CN106963351B and CN105147261B and the publication number of CN105640513A, but because the sensitivity of the existing sensor is not high enough, an inflatable and deflatable air bag device is additionally introduced, the sensor is pressurized by the air bag during detection to acquire pulse wave signals, and the power consumption is high.
Therefore, how to make the pulse wave sensor have higher sensitivity, and the flexibility, the low power consumption, the convenient use are the hotspots and difficulties in this research field.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to provide a flexible array pulse wave sensing device, which solves the technical problems that the array sensor in the prior art is not high enough in sensitivity, an inflatable and deflatable air bag device needs to be additionally introduced, the sensor is pressurized through an air bag during detection to acquire pulse wave signals, and the power consumption is high. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.
In order to achieve the purpose, the utility model provides the following technical scheme:
the flexible array pulse wave sensing device comprises a sensor module, a data acquisition processing and transmission module, a power supply module and a protective shell, wherein the sensor module is connected with the data acquisition processing and transmission module, the data acquisition processing and transmission module is also connected with the power supply module, and the protective shell is coated on the periphery of the sensor module, the data acquisition processing and transmission module and the power supply module; the sensor module comprises a first flexible substrate and a piezoelectric/triboelectric flexible array sensing unit, wherein the piezoelectric/triboelectric flexible array sensing unit is positioned on the first flexible substrate and is provided with a plurality of piezoelectric/triboelectric sensors which are arranged in an array manner, and the piezoelectric/triboelectric flexible array sensing unit is used for detecting pulse wave signals of radial artery size, radial artery closing and radial artery size at the wrist of a detected person.
According to a preferred embodiment, the piezoelectric/triboelectric flexible array sensing unit comprises a flexible piezoelectric sensing unit and a second flexible substrate, the second flexible substrate is positioned on one side of the flexible piezoelectric sensing unit far away from the first flexible substrate, the flexible piezoelectric sensing unit is provided with a plurality of piezoelectric sensors arranged in an array mode, the flexible piezoelectric sensing unit is made of piezoelectric materials, and the surface of the second flexible substrate is plated with a metal electrode layer.
According to a preferred embodiment, the metal electrode layer is a titanium layer, a copper layer or a platinum layer, the thickness of the titanium layer is 10-15 nm, the thickness of the copper layer is 180-220 nm, and the thickness of the platinum layer is 8-12 nm.
According to a preferred embodiment, the piezoelectric material of the flexible piezoelectric sensing unit is a PVDF piezoelectric film; the flexible material of the second flexible substrate is a PI or PET flexible film.
According to a preferred embodiment, the thickness of the PVDF piezoelectric film is 90-130 μm.
According to a preferred embodiment, the flexible piezoelectric sensing unit comprises a first flexible piezoelectric sensing assembly, a second flexible piezoelectric sensing assembly and a third flexible piezoelectric sensing assembly, wherein the first flexible piezoelectric sensing assembly, the second flexible piezoelectric sensing assembly and the third flexible piezoelectric sensing assembly are arranged in parallel and respectively provided with a plurality of piezoelectric sensors arranged in an array manner, and the first flexible piezoelectric sensing assembly, the second flexible piezoelectric sensing assembly and the third flexible piezoelectric sensing assembly are respectively attached to the inch, the close and the ulnar of the radial artery at the wrist of the detected person and used for detecting pulse wave signals at the inch, the close and the ulnar.
According to a preferred embodiment, the first flexible piezoelectric sensing assembly, the second flexible piezoelectric sensing assembly and the third flexible piezoelectric sensing assembly respectively comprise 24 piezoelectric sensors, the 24 piezoelectric sensors are arranged in 3 transverse rows and 8 longitudinal rows, and the piezoelectric sensors are connected through electrode wires.
According to a preferred embodiment, each of the first, second and third flexible piezoelectric sensing assemblies has a size of 3mm by 3mm, and a space between two adjacent piezoelectric sensors is less than 1 mm.
According to a preferred embodiment, the protective shell is made of rubber, silica gel, soft PVC or thermoplastic elastomer TPE.
According to a preferred embodiment, the flexible array pulse wave sensing device is a sheet structure, and the flexible array pulse wave sensing device is a temperature sensing device, a blood oxygen sensing device and/or a blood pressure sensing device.
The flexible array pulse wave sensing device provided by the utility model at least has the following beneficial technical effects:
according to the flexible array pulse wave sensing device, pulse wave signals of the radial artery cun, guan and chi positions of the wrist of a detected person are detected through the piezoelectric/triboelectric flexible array sensing units of the piezoelectric/triboelectric sensors arranged in an array mode, firstly, the piezoelectric/triboelectric flexible array sensing units greatly enhance the sensitivity of the sensors through the combination of piezoelectric and triboelectric effects, so that the pulse wave signals can be effectively detected under the condition of no external pressure, and the flexible array pulse wave sensing device has the advantage of low power consumption; secondly, the piezoelectric/triboelectric flexible array sensing unit is provided with a plurality of piezoelectric/triboelectric sensors which are arranged in an array manner, so that the piezoelectric/triboelectric flexible array sensing unit can ensure that pulse wave signals of the radial artery cun, guan and chi positions of the wrist of the detected person are effectively acquired; thirdly, the sensor module of the utility model uses flexible material as the substrate, and has the advantages of softness, skin-close, comfortable wearing and convenient use.
The flexible array pulse wave sensing device solves the technical problems that the sensitivity of an array sensor in the prior art is not high enough, an inflatable and deflatable air bag device needs to be additionally introduced, the sensor is pressurized through an air bag during detection to acquire pulse wave signals, and the power consumption is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an overall schematic view of a preferred embodiment of the flexible array pulse wave sensing device of the present invention;
FIG. 2 is a side view of a preferred embodiment of the flexible array pulse wave sensing device of the present invention;
FIG. 3 is an exploded view of a preferred embodiment of the flexible array pulse wave sensing device of the present invention;
FIG. 4 is an exploded schematic view of a preferred embodiment of the sensor module of the present invention;
fig. 5 is a test example display diagram of the flexible array pulse wave sensing device of the present invention.
In the figure: 1. a sensor module; 11. a first flexible substrate; 12. a flexible piezoelectric sensing unit; 121. a first flexible piezoelectric sensing component; 122. a second flexible piezoelectric sensing component; 123. a third flexible piezoelectric sensing component; 13. a second flexible substrate; 2. the data acquisition processing and transmission module; 3. a power supply module; 4. and (4) protecting the shell.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The flexible array pulse wave sensing device of the present embodiment will be described in detail with reference to fig. 1 to 5.
Aiming at the technical problems that the sensitivity of an array sensor in the prior art is not high enough, a chargeable and deflatable air bag device needs to be additionally introduced, the sensor is pressurized by an air bag to acquire pulse wave signals during detection, and the power consumption is high, the embodiment provides the high-sensitivity flexible array pulse wave sensing device combining piezoelectricity and triboelectricity, and the piezoelectric/triboelectricity sensors arranged in a multipoint array mode accurately acquire and detect the pulse wave signals of the radial artery position, the radial artery position and the radial artery position of the wrist of a detected person.
The flexible array pulse wave sensing device of the embodiment comprises a sensor module 1, a data acquisition processing and transmission module 2, a power supply module 3 and a protective shell 4, as shown in fig. 3. Preferably, the sensor module 1 is connected with the data acquisition processing and transmission module 2, the data acquisition processing and transmission module 2 is further connected with the power supply module 3, and the protective housing 4 is wrapped around the sensor module 1, the data acquisition processing and transmission module 2 and the power supply module 3, as shown in fig. 1 to 3. More preferably, the sensor module 1 includes a first flexible substrate 11 and a piezoelectric/triboelectric flexible array sensing unit, the piezoelectric/triboelectric flexible array sensing unit is located on the first flexible substrate 11, and the piezoelectric/triboelectric flexible array sensing unit has a plurality of piezoelectric/triboelectric sensors arranged in an array, and the piezoelectric/triboelectric flexible array sensing unit is used for detecting pulse wave signals of radial artery size, radial artery closing position and radial artery size position of the wrist of the detected person. The flexible material of the first flexible substrate 11 is a PDMS, PI, or PET flexible film. More preferably, the data acquisition processing and transmission module 2 includes a data acquisition processing unit and a data transmission unit, and the data acquisition processing and transmission module 2 is configured to acquire and process the pulse wave signal, and transmit the processed signal to the mobile phone APPA or the upper computer terminal through the low power consumption bluetooth. More preferably, the power supply module 3 is used for supplying power to the data acquisition processing and transmission module 2, and the power supply module 3 may adopt a rechargeable light and thin battery. More preferably, the protective casing 4 is used to protect the sensor module 1, the data acquisition processing and transmission module 2 and the power supply module 3.
According to the flexible array pulse wave sensing device, pulse wave signals of the radial artery cun, guan and chi positions of the wrist of a detected person are detected through the piezoelectric/triboelectric flexible array sensing units of the piezoelectric/triboelectric sensors arranged in an array mode, firstly, the piezoelectric/triboelectric flexible array sensing units greatly enhance the sensitivity of the sensors through the combination of piezoelectric and triboelectric effects, so that the pulse wave signals can be effectively detected under the condition of no external pressure, and the flexible array pulse wave sensing device has the advantage of low power consumption; secondly, the piezoelectric/triboelectric flexible array sensing unit is provided with a plurality of piezoelectric/triboelectric sensors which are arranged in an array manner, so that the piezoelectric/triboelectric flexible array sensing unit can ensure that pulse wave signals of the radial artery cun, guan and chi positions of the wrist of the detected person are effectively acquired; thirdly, the sensor module 1 of the present embodiment uses a flexible material as a substrate, and further has the advantages of being soft and close to the skin, comfortable to wear, and convenient to use.
The flexible array pulse wave sensing device of this embodiment promptly, it is high inadequately to have solved array sensor sensitivity among the prior art, still need additionally to introduce can fill out the air bag device of gassing, exerts pressure to the sensor through the gasbag when detecting and carries out pulse wave signal acquisition, the higher technical problem of consumption.
According to a preferred embodiment, the piezo/triboelectric flexible array sensing unit comprises a flexible piezo sensing unit 12 and a second flexible substrate 13, as shown in fig. 4. Preferably, the second flexible substrate 13 is located on a side of the flexible piezoelectric sensing unit 12 away from the first flexible substrate 11, the flexible piezoelectric sensing unit 12 has a plurality of piezoelectric sensors arranged in an array, the flexible piezoelectric sensing unit 12 is made of a piezoelectric material, and a metal electrode layer is plated on a surface of the second flexible substrate 13. In the preferred technical solution of the present embodiment, the flexible piezoelectric sensing unit 12 is made of a piezoelectric material, and the surface of the second flexible substrate 13 is plated with a metal electrode layer, that is, the piezoelectric part in the piezoelectric/triboelectric flexible array sensing unit is derived from the piezoelectric material used by the flexible piezoelectric sensing unit 12, and the triboelectric part is derived from friction between the piezoelectric material and the metal electrode layer on the surface of the second flexible substrate 13. Specifically, when the piezoelectric/triboelectric flexible array sensing unit detects real-time changes of blood pressure in blood vessels at the radial artery position, the radial artery position and the radial artery position of the wrist of a detected person, the piezoelectric material can generate corresponding deformation along with the changes of the blood pressure of the blood vessels, after the deformation, triboelectric generation can still exist between the piezoelectric material and the second flexible substrate 13 with the metal electrode layer plated, electric charges can be generated along with the deformation and the triboelectric electrification of the piezoelectric material, and the directional movement of the electric charges forms voltage, so that a pressure signal of a pulse is converted into a voltage signal.
Preferably, the metal electrode layer is a titanium layer, a copper layer or a platinum layer, the thickness of the titanium layer is 10-15 nm, the thickness of the copper layer is 180-220 nm, and the thickness of the platinum layer is 8-12 nm. More preferably, the titanium layer has a thickness of 13nm, the copper layer has a thickness of 200nm and the platinum layer has a thickness of 10 nm. The metal electrode layer of the preferred technical scheme of this embodiment selects a titanium layer, a copper layer or a platinum layer, the thickness of the titanium layer is 10-15 nm, the thickness of the copper layer is 180-220 nm, and the thickness of the platinum layer is 8-12 nm, so that the sensitivity of the piezoelectric/triboelectric flexible array sensing unit can be greatly improved. Without being limited thereto, the metal electrode layer in the preferred embodiment of the present invention may also be made of metal of other materials, and accordingly, the thickness of the metal electrode layer made of other materials may also be made of other dimensions.
Preferably, the piezoelectric material of the flexible piezoelectric sensing unit 12 is a PVDF piezoelectric film; the flexible material of the second flexible substrate 13 is a PI or PET flexible film. More preferably, the thickness of the PVDF piezoelectric film is 90-130 μm. Particularly preferably, the thickness of the PVDF piezoelectric film is 110 μm. In the preferred technical solution of this embodiment, the piezoelectric material of the flexible piezoelectric sensing unit 12 is a PVDF piezoelectric film, which has a high piezoelectric constant value and response sensitivity in performance, and has the advantages of softness, thinness, high chemical stability and high thermal stability in texture.
According to a preferred embodiment, the flexible piezoelectric sensing unit 12 comprises a first flexible piezoelectric sensing component 121, a second flexible piezoelectric sensing component 122 and a third flexible piezoelectric sensing component 123, as shown in fig. 4. Preferably, the first flexible piezoelectric sensing assembly 121, the second flexible piezoelectric sensing assembly 122 and the third flexible piezoelectric sensing assembly 123 are arranged in parallel and respectively provided with a plurality of piezoelectric sensors arranged in an array manner, and the first flexible piezoelectric sensing assembly 121, the second flexible piezoelectric sensing assembly 122 and the third flexible piezoelectric sensing assembly 123 are respectively attached to the radial artery, the radial artery and the radial artery of the wrist of the detected person and used for detecting pulse wave signals of the radial artery, the radial artery and the radial artery. The flexible piezoelectric sensing unit 12 of the preferred technical scheme of this embodiment includes a first flexible piezoelectric sensing element 121, a second flexible piezoelectric sensing element 122 and a third flexible piezoelectric sensing element 123 which are arranged in parallel, and the first flexible piezoelectric sensing element 121, the second flexible piezoelectric sensing element 122 and the third flexible piezoelectric sensing element 123 are respectively attached to the cun, guan and chi regions of the radial artery of the wrist of the detected person and used for detecting pulse wave signals of the cun, guan and chi regions, so that pulse wave signals of the cun, guan and chi regions of the radial artery of the wrist of the detected person can be simultaneously acquired, and crosstalk between the pulse wave signals is eliminated.
Preferably, the first flexible piezoelectric sensing assembly 121, the second flexible piezoelectric sensing assembly 122 and the third flexible piezoelectric sensing assembly 123 respectively include 24 piezoelectric sensors, the 24 piezoelectric sensors are arranged in 3 rows in the transverse direction and 8 columns in the longitudinal direction, and the piezoelectric sensors are connected through electrode wires. More preferably, in the first flexible piezoelectric sensing assembly 121, the second flexible piezoelectric sensing assembly 122 and the third flexible piezoelectric sensing assembly 123, each piezoelectric sensor has a size of 3mm by 3mm, and a space between two adjacent piezoelectric sensors is less than 1 mm. In the preferred technical scheme of the embodiment, the transverse direction refers to the axial direction of the wrist; in the preferred embodiment of the present invention, the longitudinal direction refers to the radial direction of the wrist, and may be said to be the direction toward the fingers. According to the preferred technical scheme of the embodiment, the number, the arrangement mode, the size and the spacing of the piezoelectric sensors are limited, so that the piezoelectric sensors arranged in an array manner in the first flexible piezoelectric sensing assembly 121, the second flexible piezoelectric sensing assembly 122 and the third flexible piezoelectric sensing assembly 123 can accurately acquire pulse wave signals of the radial artery cun, guan and chi positions of the wrist of the detected person.
According to a preferred embodiment, the material of the protective shell 4 is rubber, silicone, soft PVC or thermoplastic elastomer TPE material. The material of the protective casing 4 in the preferred technical scheme of this embodiment is flexible or soft material, and the protective casing 4 is attached to the sensor module 1, the data acquisition processing and transmission module 2 and the power supply module 3, so that the sensor module 1, the data acquisition processing and transmission module 2 and the power supply module 3 can be well protected.
According to a preferred embodiment, the flexible array pulse wave sensing device is a sheet like structure and the flexible array pulse wave sensing device is a temperature sensing device, a blood oxygen sensing device and/or a blood pressure sensing device. The flexible array pulse wave sensing device of the preferred technical scheme of this embodiment presents with flexible paster, has and wears comfortablely, uses convenient advantage. The flexible array pulse wave sensing device of the preferred technical scheme of this embodiment can be multifunctional according to the demand, and is specifically set as a temperature sensing device, a blood oxygen sensing device and/or a blood pressure sensing device.
The flexible array pulse wave sensing device of the embodiment has the following detection principle: the flexible piezoelectric sensing unit 12 detects real-time change of blood pressure in a radial artery blood vessel, PVDF piezoelectric material can produce corresponding deformation along with the change of blood pressure of the blood vessel, there can be triboelectric generation between piezoelectric material and the second flexible substrate 13 of the plated electrode layer after deformation produces, there can be the production of electric charge along with deformation and frictional electrification of piezoelectric material, the directional movement of electric charge forms voltage, thereby convert the pressure signal of pulse into voltage signal, the analog signal of voltage is converted into digital signal through AD conversion of data acquisition processing and transmission module 2 and is sent to cell phone APP or host computer for data processing and analysis.
The flexible array pulse wave sensing device of the embodiment has the working flow that: attaching the flexible array pulse wave sensing device to the radial artery cun, guan and chi parts of the wrist of the detected person (when the pulse wave signal of the detected person is weak, the wrist can be wound by a circle by using a medical breathable adhesive tape to reinforce the flexible array pulse wave sensing device), and fig. 5 shows a test example display diagram of the flexible array pulse wave sensing device in the embodiment; and (3) opening a switch of the flexible array pulse wave sensing device, opening mobile phone app or computer upper computer software, and after the Bluetooth connection is successful, observing the real-time display and heart rate value of the cun pulse wave, the guan pulse wave and the chi pulse wave in the mobile phone app or the computer upper computer software.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The flexible array pulse wave sensing device is characterized by comprising a sensor module (1), a data acquisition processing and transmission module (2), a power supply module (3) and a protective shell (4), wherein the sensor module (1) is connected with the data acquisition processing and transmission module (2), the data acquisition processing and transmission module (2) is also connected with the power supply module (3), and the protective shell (4) covers the sensor module (1), the data acquisition processing and transmission module (2) and the power supply module (3);
the sensor module (1) comprises a first flexible substrate (11) and a piezoelectric/triboelectric flexible array sensing unit, wherein the piezoelectric/triboelectric flexible array sensing unit is positioned on the first flexible substrate (11), the piezoelectric/triboelectric flexible array sensing unit is provided with a plurality of piezoelectric/triboelectric sensors which are arranged in an array manner, and the piezoelectric/triboelectric flexible array sensing unit is used for detecting pulse wave signals of three positions of radial artery size, radial artery closing size and radial artery closing size of a wrist of a detected person.
2. The flexible array pulse wave sensing device according to claim 1, wherein the piezoelectric/triboelectric flexible array sensing unit comprises a flexible piezoelectric sensing unit (12) and a second flexible substrate (13), the second flexible substrate (13) is located on the side of the flexible piezoelectric sensing unit (12) far away from the first flexible substrate (11), the flexible piezoelectric sensing unit (12) is provided with a plurality of piezoelectric sensors arranged in an array, the flexible piezoelectric sensing unit (12) is made of piezoelectric material, and the surface of the second flexible substrate (13) is plated with a metal electrode layer.
3. The flexible array pulse wave sensing device according to claim 2, wherein the metal electrode layer is a titanium layer, a copper layer or a platinum layer, and the thickness of the titanium layer is 10-15 nm, the thickness of the copper layer is 180-220 nm, and the thickness of the platinum layer is 8-12 nm.
4. The flexible array pulse wave sensing device according to claim 2, wherein the piezoelectric material of the flexible piezoelectric sensing unit (12) is a PVDF piezoelectric film; the flexible material of the second flexible substrate (13) is a PI or PET flexible film.
5. The flexible array pulse wave sensing device according to claim 4, wherein the thickness of the PVDF piezoelectric film is 90-130 μm.
6. Flexible array pulse wave sensing device according to claim 2, characterized in that the flexible piezoelectric sensing unit (12) comprises a first flexible piezoelectric sensing component (121), a second flexible piezoelectric sensing component (122) and a third flexible piezoelectric sensing component (123), wherein,
the first flexible piezoelectric sensing assembly (121), the second flexible piezoelectric sensing assembly (122) and the third flexible piezoelectric sensing assembly (123) are arranged in parallel and are respectively provided with a plurality of piezoelectric sensors arranged in an array mode, and the first flexible piezoelectric sensing assembly (121), the second flexible piezoelectric sensing assembly (122) and the third flexible piezoelectric sensing assembly (123) are respectively attached to the inch, the pass and the size of the radial artery of the wrist of a detected person and used for detecting pulse wave signals of the inch, the pass and the size.
7. The flexible array pulse wave sensing device according to claim 6, wherein the first flexible piezoelectric sensing assembly (121), the second flexible piezoelectric sensing assembly (122) and the third flexible piezoelectric sensing assembly (123) respectively comprise 24 piezoelectric sensors, the 24 piezoelectric sensors are arranged in 3 transverse rows and 8 longitudinal columns, and the piezoelectric sensors are connected with each other through electrode wires.
8. The flexible array pulse wave sensing device according to claim 7, wherein each of the first flexible piezoelectric sensing assembly (121), the second flexible piezoelectric sensing assembly (122) and the third flexible piezoelectric sensing assembly (123) has a size of 3mm by 3mm, and a space between two adjacent piezoelectric sensors is less than 1 mm.
9. The flexible array pulse wave sensing device according to claim 1, wherein the material of the protective housing (4) is rubber, silica gel, soft PVC or TPE material.
10. The flexible array pulse wave sensing device according to any one of claims 1 to 9, wherein said flexible array pulse wave sensing device is a sheet structure and said flexible array pulse wave sensing device is a temperature sensing device, a blood oxygen sensing device and/or a blood pressure sensing device.
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| CN202121839934.6U CN215348915U (en) | 2021-08-06 | 2021-08-06 | Flexible array pulse wave sensing device |
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