Portable pulse diagnosis instrument and pulse diagnosis method thereof

Abstract

The invention provides a portable pulse diagnosis instrument and a pulse diagnosis method thereof. Relates to the field of improvement of pulse measuring instruments, solves the problem that an existing pulse diagnosis instrument cannot accurately detect pulses, and is characterized in that a wrist strap is wound around a pulse detection target position, a closed air bag is arranged in the wrist strap, an air pressure sensor is arranged in the air bag, and an air hole communicated with the outside is formed in the outer side of the air bag; the controller controls the inflation and deflation device to fill or release air into the air bag through the air hole and obtains the pressure value, detected by the air pressure sensor, in the air bag. A flexible pressure sensor array is arranged on the inner side of the wrist strap, and the flexible pressure sensor array at least comprises three flexible pressure sensors; and the controller is used for acquiring the pressure value detected by each sensor in the flexible pressure sensor array. According to the invention, finger pressure can be simulated, the pressure change of the pulse diagnosis instrument can be adjusted, the change of pulse pressure can be sensed from time and a larger spatial degree of freedom, and the pulse can be conveniently and accurately detected.

Description

Technical Field

[0001] The present invention relates to the field of improvement of pulse measuring instruments, and in particular to a portable pulse diagnosis instrument and a pulse diagnosis method thereof. Background Art

[0002] Traditional Chinese medicine can automatically perform Chinese medicine pulse diagnosis through modern technology. For example, the existing electronic pulse diagnosis instrument uses force-sensitive sensors to collect pulse signals from the three parts of the human body, namely Cun, Guan, and Chi, and obtain basic information such as the frequency and intensity of the pulse. However, the above method still has many defects.

[0003] First, the existing array sensors are affected by factors such as the physical space (more sensor units are needed in a smaller size), the minimum process size (the maximum sensor density that can be achieved by the process per unit area), the sensor sensing mechanism (as the minimum sensor unit size decreases, the physical characteristics of the sensor unit: piezoresistance, piezoelectricity, capacitance, photoelectricity, etc. weaken, resulting in reduced sensor sensitivity and accuracy), and the production process caused by the large number of pins and leads of the sensor. This leads to inaccurate pulse measurement, lack of spatial perception of the pulse, and no quantitative perception of the intensity of the pulse pressure; second, the current pulse diagnosis instrument mainly imitates the three fingers of traditional Chinese medicine pulse diagnosis. The fingers need to be accurately placed at the three pulse diagnosis positions. It is only suitable for professional traditional Chinese medicine physicians and is not universal. Third, during pulse diagnosis, there is a lack of adjustment ability for changes in finger pressure, which makes the pulse diagnosis process incomparable to the current traditional Chinese medicine pulse diagnosis.

[0004] Therefore, it is necessary to improve the existing pulse diagnosis instrument, requiring the pulse diagnosis instrument to be able to accurately detect the pulse and perform pulse diagnosis. Summary of the invention

[0005] A brief overview of the present invention is provided below in order to provide a basic understanding of certain aspects of the present invention. It should be understood that this overview is not an exhaustive overview of the present invention. It is not intended to identify key or important parts of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] In view of this, in order to solve the above problems, the present invention proposes a portable pulse diagnosis instrument and a pulse diagnosis method thereof to achieve convenient and accurate pulse detection.

[0007] The present invention provides a portable pulse diagnosis instrument, comprising:

[0008] Wristband, airbag, inflation and deflation device and controller,

[0009] The wristband is wrapped around the target position for pulse detection, a sealed airbag is provided inside the wristband, an air pressure sensor is provided inside the airbag, an air hole is provided outside the airbag to support communication with the outside, the controller controls the inflation and deflation device to fill or release air into the airbag through the air hole, and obtains the pressure value in the airbag detected by the air pressure sensor;

[0010] A flexible pressure sensor array is provided on the inner side of the wristband, and the flexible pressure sensor array includes at least three flexible pressure sensors;

[0011] The controller obtains the pressure value detected by each sensor in the flexible pressure sensor array.

[0012] Preferably, a temperature sensor is provided on the inner side of the wristband, and the controller obtains the temperature value detected by the temperature sensor.

[0013] Preferably, the wristband adjusts the caliber of the wristband wrapped around the target position for pulse detection through the adhesive bodies on the inner side and the outer side of the wristband.

[0014] Preferably, the flexible pressure sensor array includes: piezoelectric flexible sensors, resistive flexible sensors, capacitive flexible sensors, and piezoelectric flexible sensors.

[0015] Preferably, the portion of the wristband contacting the skin is made of low-elasticity material.

[0016] In a second aspect, the present invention further provides a pulse diagnosis method using a portable pulse diagnosis instrument, comprising:

[0017] Adjust the pressure in the airbag of the wristband; detect and record the changing time sequence of the airbag pressure value through the controller;

[0018] Detecting changes in the pressure value of the flexible pressure sensor array through a controller, and acquiring a time sequence of a three-dimensional envelope waveform of a pulse at a target position of pulse detection detected by the flexible pressure sensor array;

[0019] Processing and analyzing the time series of the envelope waveform to obtain signal characteristics of the processed time series;

[0020] According to the changing time series of the airbag pressure value and the time series of the pulse three-dimensional envelope waveform detected by the flexible pressure sensor array, the signal characteristics of the processed time series are identified through a machine learning model or a deep learning model to determine the pulse condition.

[0021] Preferably, adjusting the pressure in the airbag of the wristband includes one of the following methods:

[0022] Adjusting the pressure input into the airbag of the wristband so that the extreme value difference of the pressure value at the pulse detection target position detected by the flexible pressure sensor array reaches a maximum, and taking the pressure in the airbag of the wristband corresponding to the maximum extreme value difference as a reference value of the pressure in the airbag of the wristband, keeping the pressure input into the airbag of the wristband at the reference value, and stopping the adjustment;

[0023] Setting and maintaining a pressure value input into an air bag of the wristband;

[0024] Simulating the change of finger pressure during pulse diagnosis, and adjusting the pressure value input into the air bag of the wristband to correspond to the change of finger pressure during pulse diagnosis;

[0025] Adjusting the pressure input into the airbag of the wristband, calibrating the average, maximum, minimum values ​​of the pressure values ​​at different array points of the pulse detection target position detected by the flexible pressure sensor array and the pressure value of the airbag, and determining the pressure input into the airbag of the wristband according to the average, maximum, minimum values ​​of the calibrated pressure values ​​and the pressure value of the airbag;

[0026] The pressure input into the airbag of the wristband is linearly adjusted within a preset airbag pressure range.

[0027] Preferably, the extreme value difference of the pressure values ​​detected by the flexible pressure sensor array reaches a maximum in one of the following ways:

[0028] The maximum value-minimum value of the pressure values ​​detected by the flexible pressure sensor array reaches a maximum value;

[0029] The maximum value of the pressure value detected by the flexible pressure sensor array reaches a maximum value;

[0030] The maximum value-average value of the pressure values ​​detected by the flexible pressure sensor array reaches a maximum value;

[0031] The minimum value of the pressure value detected by the flexible pressure sensor array reaches a maximum value;

[0032] The average value-minimum value of the pressure values ​​detected by the flexible pressure sensor array reaches the maximum value.

[0033] Preferably, the signal features include time series signals, frequency domain signals, and contour signals.

[0034] Preferably, the method further comprises:

[0035] According to the temperature values ​​detected by the temperature sensor, a time series sequence of the temperature values ​​is obtained;

[0036] According to the changing time series of the airbag pressure value, the time series of the pulse three-dimensional envelope waveform detected by the flexible pressure sensor array, and the time series of the temperature value, the signal characteristics of the processed time series are identified through a machine learning model or a deep learning model to determine the pulse condition.

[0037] The portable pulse diagnosis instrument and the pulse diagnosis method of the present invention utilize a flexible pressure sensor array to collect human wrist pulse data; since the flexible pressure sensor array includes at least three flexible pressure sensors, each flexible pressure sensor can individually detect pressure signals at different detection positions. When using the portable pulse diagnosis instrument of the present invention, the user does not need to find and align the pulse position by himself. Even if the user's position changes during multiple pulse measurements, the pulse signal can be found through the flexible pressure sensor array, thereby improving the convenience of using the portable pulse diagnosis instrument of the present invention and the user experience.

[0038] The embodiment of the present invention can control the inflation and deflation device through a controller to adjust the air pressure in the airbag, so that the airbag applies appropriate pressure to the flexible pressure sensor array, which can simulate and adjust the pressure change of finger pressure, and sense the change of pulse pressure in time and with greater spatial freedom. The present invention uses a flexible pressure sensor array to collect pulse data at different positions of the human wrist pulse under different pressures, thereby obtaining a time sequence of the three-dimensional envelope waveform of the pulse at the target position, which can conveniently and accurately detect the pulse and perform pulse diagnosis.

[0039] These and other advantages of the present invention will become more apparent through the following detailed description of the best embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention may be better understood by referring to the following description given in conjunction with the accompanying drawings, wherein the same or similar reference numerals are used throughout the drawings to represent the same or similar components. The accompanying drawings, together with the following detailed description, are included in and form a part of this specification and are used to further illustrate the preferred embodiments of the present invention and to explain the principles and advantages of the present invention. In the drawings:

[0041] Figure 1 is a schematic diagram showing the structure of the portable pulse diagnosis instrument of the present invention;

[0042] Figure 2 is a schematic diagram showing the structure of the portable pulse diagnosis instrument of the present invention;

[0043] Figure 3 is a schematic diagram showing the structure of the portable pulse diagnosis instrument of the present invention;

[0044] Figure 4is a flow chart showing a pulse diagnosis method of the portable pulse diagnosis instrument of the present invention;

[0045] Figure 5 is a schematic diagram showing a pulse envelope waveform detected by the flexible sensor array of the present invention;

[0046] Figure 6 It is a schematic diagram showing the pulse envelope waveform detected by the flexible sensor array of the present invention.

[0047] Among them, 1 is a wristband, 2 is an air guide tube, 3 is an air filling and deflation device, 4 is a temperature sensor, 11 is an air bag, 12 is an air hole, 13 is a flexible pressure sensor array, and 14 is an air pressure sensor.

[0048] Those skilled in the art will appreciate that the elements in the drawings are shown only for simplicity and clarity and are not necessarily drawn to scale. For example, the size of some elements in the drawings may be enlarged relative to other elements to help improve the understanding of the embodiments of the present invention. DETAILED DESCRIPTION

[0049] Exemplary embodiments of the present invention will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the present disclosure.

[0050] It is also necessary to explain here that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure closely related to the solution according to the present invention is shown in the drawings, while other details that are not closely related to the present invention are omitted.

[0051] like Figure 1-3 As shown, an embodiment of the present invention provides a portable pulse diagnosis instrument, comprising:

[0052] Wristband 1, airbag 11, inflation and deflation device 3 and controller,

[0053] The wristband 1 is wrapped around the target position for pulse detection, a sealed airbag 11 is provided inside the wristband 1, an air pressure sensor 14 is provided inside the airbag 11, an air hole 12 supporting communication with the outside is provided outside the airbag 11, the controller controls the inflation and deflation device 3 to fill or release air into the airbag 11 through the air hole 12, and obtains the pressure value in the airbag 11 detected by the air pressure sensor 14;

[0054] A flexible pressure sensor array 13 is provided on the inner side of the wristband 1, and the flexible pressure sensor array 13 includes at least three flexible pressure sensors;

[0055] The controller obtains the pressure value detected by each sensor in the flexible pressure sensor 13 array.

[0056] In the embodiment of the present invention, the controller can accurately control the pressure value given at the wrist, that is, the pressure input into the airbag 11 of the wristband 1, through the cooperation of the inflation and deflation device 3 and the air pressure sensor 14. The flexible pressure sensor array 13 used includes at least 3 flexible pressure sensors to cover the three buried positions of Cun, Guan, and Chi. Optionally, the flexible pressure sensor array 13 can be a 64*32 array. The flexible pressure sensor array 13 is mainly used to detect the instantaneous pressure diagram of the pulse.

[0057] In an embodiment of the present invention, the portable pulse diagnosis instrument also includes an air duct 2, the air hole 12 is connected to one end of the air duct 2, and the other end of the air duct 2 is connected to the inflation and deflation device 3; the controller controls the inflation and deflation device 3 to fill air into the airbag 11 through the air duct 2 to adjust the pressure in the airbag 11.

[0058] In the embodiment of the present invention, the air hole 12 and the air filling and deflation device 3 are connected by the air guide tube 2, so that the portable pulse diagnosis instrument can be used more conveniently and flexibly.

[0059] In the embodiment of the present invention, a temperature sensor 4 is provided on the inner side of the wristband 1 , and the controller obtains the temperature value detected by the temperature sensor 4 .

[0060] In the embodiment of the present invention, the temperature sensor 4 can detect the temperature of the pulse detection target position to assist in obtaining the user's body temperature to determine the user's physical condition. On the other hand, since the measurement accuracy of the flexible pressure sensor is related to the temperature, the user's body temperature is detected, that is, the temperature of the flexible pressure sensor, to improve the accuracy of the flexible sensor, thereby improving the accuracy of pulse diagnosis.

[0061] In the embodiment of the present invention, the wristband 1 adjusts the caliber of the wristband 1 wrapped around the target position for pulse detection through the viscous bodies on the inner side and the outer side of the wristband 1 .

[0062] In the embodiment of the present invention, the flexible pressure sensor array 13 includes: a piezoelectric flexible sensor, a resistive flexible sensor, a capacitive flexible sensor, and a piezoelectric flexible sensor.

[0063] In the embodiment of the present invention, the portion of the wristband 1 that contacts the skin is made of a low-elastic material.

[0064] In the embodiment of the present invention, the portable pulse diagnosis instrument comprises an inflatable wristband 1 with adjustable pressure, the inner diameter of the wristband can be adjusted, and the pressure in the airbag 11 acts evenly on the entire wrist. The inner side of the wristband 1 comprises a flexible pressure sensor array 13 for detecting changes in the pressure value of the target position of the pulse detection.

[0065] The part of the wristband 1 that contacts the skin is made of low-elastic material, and the elasticity of the material is independent of temperature, so as to ensure that the spatial coordinates of the flexible pressure sensor array 13 on the wristband 1 are accurate.

[0066] The part of the wristband 1 that contacts the skin fixes a flexible pressure sensor array 13, which includes but is not limited to piezoelectric flexible sensors, resistive flexible sensors, capacitive flexible sensors, and broadcast flexible sensors.

[0067] The flexible pressure sensor array 13 is required to cover the three buried positions of Cun, Guan and Chi. The width range of the flexible pressure sensor array 13 can be 0.1CM-30CM (covering the entire wrist); the length range can be 1CM-20CM.

[0068] The higher the spatial accuracy and temporal accuracy of the flexible pressure sensor array 13, the better. Preferably, the spatial accuracy is required to be less than 0.1MM, and the pressure accuracy is less than 10Kpa.

[0069] The controller in the embodiment of the present invention can be any device with storage and computing capabilities, which can be implemented as an MCU (Microcontroller Unit) embedded in a portable pulse diagnosis instrument, or a server, workstation, etc., or a personal computer such as a desktop computer and a notebook computer, or a terminal device such as a mobile phone, a tablet computer, a smart wearable device, an Internet of Things device, but is not limited thereto. The controller in the embodiment of the present invention can at least realize the following functions: 1. Obtain the pressure value detected by each sensor in the flexible pressure sensor array 13; 2. Obtain the pressure value of the airbag detected by the air pressure sensor 14, and control the inflation and deflation device 13 to inflate and deflate; 3. Send and receive data to the upper computer through communication methods such as USB and Bluetooth; 4. Calculate and process sensor data, pressure data and temperature data; 5. Manage data display.

[0070] like Figure 4As shown, the present invention also provides a pulse diagnosis method using a portable pulse diagnosis instrument, which may include the following steps:

[0071] S101, adjusting the pressure in the airbag of the wristband; detecting and recording the changing time sequence of the airbag pressure value through a controller;

[0072] S102, detecting changes in the pressure value of the flexible pressure sensor array through a controller, and acquiring a time sequence of a three-dimensional envelope waveform of a pulse at a target position of pulse detection detected by the flexible pressure sensor array;

[0073] S103, processing and analyzing the time series of the envelope waveform to obtain signal characteristics of the processed time series;

[0074] S104. According to the changing time series of the airbag pressure value and the time series of the pulse three-dimensional envelope waveform detected by the flexible pressure sensor array, the signal characteristics of the processed time series are identified through a machine learning model or a deep learning model to determine the pulse condition.

[0075] The embodiment of the present invention can simulate finger pressure and adjust the pressure change of the airbag of the input value pulse diagnosis instrument, and at the same time perceive the pressure change of the flexible pressure sensor array in time and with greater spatial freedom, so as to conveniently and accurately detect the pulse and perform pulse diagnosis.

[0076] In the embodiment of the present invention, adjusting the pressure in the airbag of the wristband includes one of the following methods:

[0077] Adjusting the pressure input into the airbag of the wristband so that the extreme value difference of the pressure value at the pulse detection target position detected by the flexible pressure sensor array reaches a maximum, and taking the pressure in the airbag of the wristband corresponding to the maximum extreme value difference as a reference value of the pressure in the airbag of the wristband, keeping the pressure input into the airbag of the wristband at the reference value, and stopping the adjustment;

[0078] Setting and maintaining a pressure value input into an air bag of the wristband;

[0079] Simulating the change of finger pressure during pulse diagnosis, and adjusting the pressure value input into the air bag of the wristband to correspond to the change of finger pressure during pulse diagnosis;

[0080] Adjusting the pressure input into the airbag of the wristband, calibrating the average, maximum, minimum values ​​of the pressure values ​​at different array points of the pulse detection target position detected by the flexible pressure sensor array and the pressure value of the airbag, and determining the pressure input into the airbag of the wristband according to the average, maximum, minimum values ​​of the calibrated pressure values ​​and the pressure value of the airbag;

[0081] The pressure input into the airbag of the wristband is linearly adjusted within a preset airbag pressure range.

[0082] In an embodiment of the present invention, there are two ways to adjust the wristband pressure, one is a fixed pressure method, and the other is a dynamic adjustment method. Among them, the fixed pressure method can be implemented in the following ways: Method 1: By detecting the peak value of the flexible pressure sensor array, the air pressure input into the airbag is automatically adjusted so that the extreme value difference of the flexible pressure sensor array is the largest, and the maximum extreme value difference represents the clearest signal, the maximum value-minimum value reaches the maximum value, or the maximum value reaches the maximum, or the maximum value-average value reaches the maximum, or the minimum value reaches the maximum, or the average value-minimum value reaches the maximum, and the pressure value input into the airbag corresponding to the maximum extreme value difference of the flexible pressure sensor array is used as the reference value of the wristband airbag pressure, and the airbag pressure adjustment is turned off to keep the wristband airbag pressure stable. At this time, the change of the pressure value of the flexible pressure sensor array in the wristband is detected to form a time series of the pressure of the flexible pressure sensor array of the wristband. Method 2: According to experience and the detection value of the flexible pressure sensor array, a fixed pressure value of the airbag air pressure is determined, and the airbag pressure adjustment is turned off. At this time, the change of the pressure value of the flexible pressure sensor array in the wristband is detected to form a time series of the pressure of the flexible pressure sensor array of the wristband. The dynamic adjustment method can be implemented in the following ways: Method 1: Simulate the change of finger pressure during pulse diagnosis. For example, during pulse diagnosis, the doctor's finger pressure is first lightly touched to test, then gradually increased, and then reduced. According to the law of force change, the air pressure input into the airbag is adjusted. At this time, the change of the pressure value of the flexible pressure sensor array in the wristband is detected to form a time series of the pressure of the flexible pressure sensor array of the wristband. Method 2: Regularly and gradually adjust the pressure input into the airbag of the wristband, for example, from small to large, or from large to small, each time increasing or decreasing a preset pressure value, for example, 0.5pa, detecting the change of the pressure value of the flexible pressure sensor array in the wristband, and calibrating the mean, maximum, minimum and unchanged pressure value of the detection value, determining the moment when the detected pulse pressure signal is the clearest, and based on this, determining the pressure value input into the airbag of the wristband to guide the air pressure adjustment of the wristband, and detecting the change of the pressure value of the flexible pressure sensor array in the wristband to form a time series of the pressure of the flexible pressure sensor array of the wristband. Method 3: linearly adjust the pressure input into the airbag of the wristband within a preset airbag pressure range. For example, within a certain range, gradually and uniformly increase the pressure input into the airbag of the wristband or gradually and uniformly decrease the pressure input into the airbag of the wristband, wherein the range is set based on experience and the detection value of the flexible pressure sensor array.

[0083] In the embodiment of the present invention, the extreme value difference of the pressure values ​​detected by the flexible pressure sensor array reaches the maximum in one of the following ways:

[0084] The maximum value-minimum value of the pressure values ​​detected by the flexible pressure sensor array reaches a maximum value;

[0085] The maximum value of the pressure value detected by the flexible pressure sensor array reaches a maximum value;

[0086] The maximum value-average value of the pressure values ​​detected by the flexible pressure sensor array reaches a maximum value;

[0087] The minimum value of the pressure value detected by the flexible pressure sensor array reaches a maximum value;

[0088] The average value-minimum value of the pressure values ​​detected by the flexible pressure sensor array reaches the maximum value.

[0089] Preferably, the signal features include time series signals, frequency domain signals, and contour signals.

[0090] In the embodiment of the present invention, the controller obtains the change of the pressure value of the flexible pressure sensor array, and obtains the three-dimensional envelope waveform of the pulse detected by the flexible sensor array at a certain moment. Figure 5-Figure 6 As shown, schematic diagrams of partial pulse envelopes at a certain moment are shown, wherein the X-axis corresponds to the length direction of the pulse diagnosis instrument, in mm, the Y-axis corresponds to the width direction of the pulse diagnosis instrument, in mm, and the Z-axis corresponds to the numerical representation of the signal strength detected by the flexible sensor array. The complete detected pulse envelope is multiple Figure 5-Figure 6 The envelopes shown are superimposed and may overlap partially.

[0091] In the embodiment of the present invention, after adjusting the pressure input into the airbag of the wristband, the time sequence of the pulse three-dimensional envelope waveform at the pulse detection target position is obtained at a specific time interval (the sampling interval can be 0.01 milliseconds-1 second). The method that can be adopted is to subtract the pressure value of the same time sequence in the wristband airbag from the time sequence envelope waveform of the flexible pressure sensor array.

[0092] In an embodiment of the present invention, the timing sequence of the envelope waveform of only one hand can be obtained, or the timing sequence of the envelope waveform of both hands can be obtained. The timing sequence of the envelope waveform of one hand or the timing sequence of the envelope waveform of both hands combined can be used for analysis and learning in subsequent steps.

[0093] The envelope wave is processed and analyzed (for example, including but not limited to filtering, principal component analysis, difference, Fourier transform, wavelet transform, etc.) to obtain the signal characteristics of the "clean" time series sequence. The signal characteristics may include time series signals, frequency domain signals, shape signals, etc.

[0094] Through machine learning (for example, including but not limited to SVM, random forest, MLP and other classification and regression algorithms) or deep learning (for example, including but not limited to CNN, LSTM, 3DCNN, Transformer and other algorithms), the characteristics of the pulse wave are learned and the pulse condition (deep, slippery, etc.) is judged.

[0095] In an embodiment of the present invention, the pulse diagnosis method further includes:

[0096] According to the temperature values ​​detected by the temperature sensor, a time series sequence of the temperature values ​​is obtained;

[0097] According to the changing time series of the airbag pressure value, the time series of the pulse three-dimensional envelope waveform detected by the flexible pressure sensor array, and the time series of the temperature value, the signal characteristics of the processed time series are identified through a machine learning model or a deep learning model to determine the pulse condition.

[0098] The embodiment of the present invention can combine the detected temperature value to perform machine learning or deep learning to more accurately determine the pulse condition.

[0099] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0100] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0101] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0102] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0103] Although the present invention has been described according to a limited number of embodiments, it will be apparent to those skilled in the art, with the benefit of the above description, that other embodiments may be envisioned within the scope of the invention thus described. In addition, it should be noted that the language used in this specification is selected primarily for readability and teaching purposes, rather than for explaining or defining the subject matter of the present invention. Therefore, many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. The disclosure of the present invention is illustrative, not restrictive, with respect to the scope of the present invention, which is defined by the appended claims.

Claims

1. A portable pulse diagnosis instrument, characterized in that: include: Wristband, airbag, inflation and deflation device and controller, The wristband is wrapped around the target position for pulse detection, a sealed airbag is provided inside the wristband, an air pressure sensor is provided inside the airbag, an air hole is provided outside the airbag to support communication with the outside, the controller controls the inflation and deflation device to fill or release air into the airbag through the air hole, and obtains the pressure value in the airbag detected by the air pressure sensor; A flexible pressure sensor array is provided on the inner side of the wristband, and the flexible pressure sensor array includes at least three flexible pressure sensors; The controller obtains the pressure value detected by each sensor in the flexible pressure sensor array.

2. The portable pulse diagnosis instrument according to claim 1, characterized in that: A temperature sensor is provided inside the wristband, and the controller obtains a temperature value detected by the temperature sensor.

3. The portable pulse diagnosis instrument according to claim 1 or 2, characterized in that: The wristband adjusts the caliber of the wristband wound around the target position for pulse detection through the viscous bodies on the inner side and the outer side of the wristband.

4. The system according to claim 1 or 2, characterized in that: The flexible pressure sensor array includes: piezoelectric flexible sensor, resistive flexible sensor, capacitive flexible sensor, and piezoelectric flexible sensor.

5. The system according to claim 1 or 2, characterized in that: The part of the wristband contacting the skin is made of low-elasticity material.

6. A method for diagnosing a pulse using the portable pulse diagnosis instrument according to any one of claims 1 to 5, characterized in that: include: Adjust the pressure in the wristband's air bag; Detect and record the changing time sequence of the airbag pressure value through the controller; Detecting changes in the pressure value of the flexible pressure sensor array through a controller, and acquiring a time sequence of a three-dimensional envelope waveform of a pulse at a target position of pulse detection detected by the flexible pressure sensor array; Processing and analyzing the time series of the envelope waveform to obtain signal characteristics of the processed time series; According to the changing time series of the airbag pressure value and the time series of the pulse three-dimensional envelope waveform detected by the flexible pressure sensor array, the signal characteristics of the processed time series are identified through a machine learning model or a deep learning model to determine the pulse condition.

7. The pulse diagnosis method according to claim 6, characterized in that: Adjusting the pressure in the air bag of the wristband includes one of the following methods: Adjusting the pressure input into the airbag of the wristband so that the extreme value difference of the pressure value at the pulse detection target position detected by the flexible pressure sensor array reaches a maximum, and taking the pressure in the airbag of the wristband corresponding to the maximum extreme value difference as a reference value of the pressure in the airbag of the wristband, keeping the pressure input into the airbag of the wristband at the reference value, and stopping the adjustment; Setting and maintaining a pressure value input into an air bag of the wristband; Simulating the change of finger pressure during pulse diagnosis, and adjusting the pressure value input into the air bag of the wristband to correspond to the change of finger pressure during pulse diagnosis; Adjusting the pressure input into the airbag of the wristband, calibrating the average, maximum, minimum values ​​of the pressure values ​​at different array points of the pulse detection target position detected by the flexible pressure sensor array and the pressure value of the airbag, and determining the pressure input into the airbag of the wristband according to the average, maximum, minimum values ​​of the calibrated pressure values ​​and the pressure value of the airbag; The pressure input into the airbag of the wristband is linearly adjusted within a preset airbag pressure range.

8. The pulse diagnosis method according to claim 7, characterized in that: The extreme value difference of the pressure values ​​detected by the flexible pressure sensor array reaches a maximum in one of the following ways: The maximum value-minimum value of the pressure values ​​detected by the flexible pressure sensor array reaches a maximum value; The maximum value of the pressure value detected by the flexible pressure sensor array reaches a maximum value; The maximum value-average value of the pressure values ​​detected by the flexible pressure sensor array reaches a maximum value; The minimum value of the pressure value detected by the flexible pressure sensor array reaches a maximum value; The average value-minimum value of the pressure values ​​detected by the flexible pressure sensor array reaches the maximum value.

9. The pulse diagnosis method according to any one of claims 6 to 8, characterized in that: The signal features include time series signals, frequency domain signals, and contour signals.

10. The pulse diagnosis method according to claim 7, characterized in that: Also includes: According to the temperature values ​​detected by the temperature sensor, a time series sequence of the temperature values ​​is obtained; According to the changing time series of the airbag pressure value, the time series of the pulse three-dimensional envelope waveform detected by the flexible pressure sensor array, and the time series of the temperature value, the signal characteristics of the processed time series are identified through a machine learning model or a deep learning model to determine the pulse condition.

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