CN109497981A - A kind of Korotkoff's Sound blood pressure detector and its detection method with pulse wave detection - Google Patents
A kind of Korotkoff's Sound blood pressure detector and its detection method with pulse wave detection Download PDFInfo
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- CN109497981A CN109497981A CN201811637810.2A CN201811637810A CN109497981A CN 109497981 A CN109497981 A CN 109497981A CN 201811637810 A CN201811637810 A CN 201811637810A CN 109497981 A CN109497981 A CN 109497981A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
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- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Ophthalmology & Optometry (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a kind of Korotkoff's Sound blood pressure detectors and its detection method with pulse wave detection, including the pressure sensor for detecting pressure signal in cuff, and the Korotkoff's Sound pick device for analyzing and handling Korotkoff's Sound, the pressure sensor includes cuff pressure detection circuit and pulse wave acquisition and filter circuit, the Korotkoff's Sound pick device include Korotkoff's Sound Signal sampling and processing circuit.The present invention provides a kind of Korotkoff's Sound blood pressure detector and its detection method with pulse wave detection, the detection and analysis of pulse wave are also provided while measuring blood pressure, and measurement report and suggestion are provided in conjunction with blood pressure information, oneself physical condition is understood in time, and carries out scientific and effective training.
Description
Technical field
The present invention relates to medical detection technology, specially a kind of Korotkoff's Sound blood pressure detector with pulse wave detection
And its detection method.
Background technique
Blood pressure is the important physiological parameter for reflecting cardiovascular system state.Especially in recent years, hypertension is in person in middle and old age
Disease incidence in crowd constantly rises and (has reached 15%-20% according to statistics), and often causes cardiovascular system some diseases
An important factor for, systolic pressure increases main influence Diastole Function, and diastolic pressure increases main influence Left ventricular systolic function, and right
Diastole Function has no significant effect.Common people's diastolic pressure rises to one's mid-50s up to peak with the age, and shrinks and be calendered to 70
Or so year reaches peak, so pulse pressure difference is larger, based on the elderly is often increased with systolic pressure；Therefore the accurate detection of blood pressure is in clinic
It is become more and more important in health service, the measurement for blood pressure generally has Korotkoff's Sound stethoscopy and oscillographic method, conditional electronic
Sphygmomanometer mostly uses oscillographic method principle to measure blood pressure, and this method is easy to operate, does not need stethoscope, but this method is according to statistics
And empirical equation, it is larger for individual measurement error.Korotkoff's Sound stethoscopy is applied to mercurial sphygmomanometer measurement human blood-pressure more,
Korotkoff's Sound stethoscopy has become " goldstandard " of clinical medicine detection blood pressure in the last hundred years, but this method is limited by the warp of measurement people
It tests, subjective judgement influences, and is easy by ambient noise interference.
Pulse wave is as the most sensitive reliable information source closely bound up with human body cardiovascular activity, in artery piping
It in transmission, is not only influenced by heart itself, can also constantly reflect, be flowed through at different levels in the branches at different levels of downstream different location
The influence of various physiological and pathological factors such as vascular resistence, vessel wall elasticity and blood stickiness etc. in artery and branch, thus under
The reflected reflection wave strength of trip peripheral arterial and waveform will have very difference greatly with the variation of different physiological and pathological factors, this
The reflected wave information wave character different from the pulse wave shown after superimposed from the pulse wave of heart originally, makes pulse
Contain profuse cardiovascular system physiological and pathological information in wave.The form (shape of wave) of pulse wave, the intensity (width of wave
Value), the synthesis in rate (speed of wave) and the rhythm and pace of moving things (period of wave) etc. be evaluation cardiovascular system of human body physiological and pathological shape
The important evidence of state.As a variety of cardiovascular diseases of the rhythm and pace of moving things variation diagnostic of pulse measure blood pressure.Therefore, it is set using Korotkoff's Sound principle
A blood pressure measurement and pulse wave detection and one are counted, it is particularly important to measure detection device accurate, easy to carry.
Summary of the invention
The purpose of the present invention is to provide a kind of Korotkoff's Sound blood pressure detectors with pulse wave detection, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme: a kind of Korotkoff's Sound blood pressure inspection with pulse wave detection
Device is surveyed, including the pressure sensor for detecting pressure signal in cuff, and the Ke Shi for analyzing and handling Korotkoff's Sound
Sound pick device, the pressure sensor includes cuff pressure detection circuit and pulse wave acquires and filter circuit, described
Korotkoff's Sound pick device includes Korotkoff's Sound Signal sampling and processing circuit.
The output end of the Korotkoff's Sound pick device and pressure sensor is respectively connected with slave computer, and the slave computer connects respectively
It is connected to host computer, power management module and driving circuit.
The host computer extracts pulse wave characteristic point and the pulse waveform spy based on the variation of the pulse wave wave area of pictural surface
Sign amount K value obtains the form, intensity and the rhythm and pace of moving things of pulse wave according to the position of characteristic point, wherein with the variation of the pulse wave wave area of pictural surface
Based on pulse waveform characteristic quantity K value, is defined as:
Wherein,PmFor mean arterial pressure, it is equal to pulse pressure P in a cardiac cycle
(t) average value, PS, PdRespectively systolic pressure and diastolic pressure.
The model MPXV5050GP of the pressure sensor.
The slave computer is set as the single-chip microcontroller of model STM32F103RCT6.
One end of the Korotkoff's Sound pick device is equipped with stethoscope head, and the other end is connected with electret microphone.
A kind of detection method with Korotkoff's Sound blood pressure detector, comprising the following steps:
Step 1, closes air valve and to cuff inflation, acquires pressure sensor DC component, judges whether atmospheric pressure value is greater than
Threshold values performs the next step suddenly if more than threshold values, if being less than threshold values, re-execute the steps one；
Step 2 stops extracting and analyze a certain frequency component of Korotkoff's Sound signal to cuff inflation, and acquires pressure biography
Sensor DC component, judges whether Korotkoff's Sound occur, if there is Korotkoff's Sound, recording the cuff is systolic pressure, if Korotkoff's Sound disappears
It loses, the pressure value for recording the cuff is diastolic pressure；
Step 3 is opened air valve inflation, is stopped when atmospheric pressure value reaches setting value to cuff inflation, and by pulse wave and blood
Pressure value is sent to host computer；
Step 4 obtains Pulse-Parameters, shows test result.
The frequency component of the Korotkoff's Sound signal is X (t):
X (t)=Asin (ω kt)；
Wherein, acoustic pressure are as follows:
In above-mentioned formula, Xk、Xk-1The respectively sampled value at (k-1) t and kt moment can acquire the sound intensity I of Korotkoff's Sound:
In formula,For average sound pressure, Media density ρ and velocity of sound V are constant, and the Korotkoff's Sound sound intensity is flat with sampled signal difference
Side is directly proportional, at the time of which is used to calculate the sound intensity of Korotkoff's Sound and judges Korotkoff's Sound appearing and subsiding.
As shown from the above technical solution, the present invention provides a kind of Korotkoff's Sound blood pressure detector with pulse wave detection, should
Equipment also provides the detection and analysis of pulse wave while measuring blood pressure, and blood pressure information and system big data is combined to provide survey
Reports and recommendations are measured, understand oneself physical condition in time, and carry out scientific and effective training.
Detailed description of the invention
Fig. 1 is present system schematic diagram；
Fig. 2 is present system program chart；
Fig. 3 is cuff structural schematic diagram of the present invention.
Fig. 4 is schematic structural view of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing:
A kind of Korotkoff's Sound blood pressure detector with pulse wave detection as shown in Figure 1, including for detecting in cuff 102
The pressure sensor 104 of pressure signal, and the Korotkoff's Sound pick device 103 for analyzing and handling Korotkoff's Sound, the pressure
Sensor 104 includes that cuff pressure detection circuit 106 and pulse wave acquisition and filter circuit 107, the Korotkoff's Sound pick up
Device 103 includes Korotkoff's Sound Signal sampling and processing circuit 105.
As shown in Figure 1, the single-chip microcontroller 101 is connected with power module 110, air valve 113, air valve 114, driving circuit simultaneously
108 and host computer, the preferred tablet computer 112 of the present embodiment issues manipulation command as host computer, and the driving circuit 108 connects
It is connected to air pump 109, pulse wave detection and analysis is the pressure signal detected in cuff 102 by pressure sensor 104, through pulse
Wave acquisition and filter circuit 107 and cuff pressure detection circuit 106 extract the pulse wave signal of testee, pass through single-chip microcontroller
101 A/D converter ALT-CH alternate channel converts analog signals into digital signal, is sent to tablet computer by USB connecting line
112, the characteristic point data in pulse wave is obtained by network analysis, to obtain cardiovascular system physiological and pathological information；It is described
Pressure sensor 104 model MPXV5050GP.
As shown in figure 3, one end of the Korotkoff's Sound pick device is stethoscope head 3, when test with the binding of cuff 102 in
At testee's arm, the other end is connected to electret microphone by tracheae 4, and combines audio-frequency amplifier by the sound of vibration
Sound signal is converted into analog voltage signal, audio-frequency amplifier model TPA3110D2；Tracheae 2 is connected to pressure sensor, leads to
Analog voltage signal is converted to digital signal by the A/D converter ALT-CH alternate channel for crossing single-chip microcontroller, and is sentenced by single-chip microcontroller internal arithmetic
Disconnected Korotkoff's Sound appearing and subsiding obtains the systolic pressure and diastolic pressure of testee.
As shown in figure 3, this kind of Korotkoff's Sound blood pressure detector includes upper casing 8, bottom case 11 and tablet computer 5, tablet computer 5
It is placed in the groove of upper casing 8 and is screwed.PCB circuit board and air valve 113, air valve 114, air pump are installed in bottom case 11
109, the 105 cuff pressure detection circuit 106 of Korotkoff's Sound Signal sampling and processing circuit, pulse wave acquisition and filter circuit
107 and pressure sensor 104 etc. are respectively positioned in PCB circuit board.The USB connecting line of PCB circuit board and tablet computer is in shell
Portion's connection, upper casing 8 and bottom case 11 can be screwed.It is provided with the key 6 for power switch on shell, and is used for
The key 7 of emergent deflation, somatosensory discomfort can be tested by pressing 7 Quick stop of key and release sleeve when tested
With the residual gas in 102.Interface 9 is 102 air pipe interface of cuff, passes through the interface 9 connection PCB circuit board inside housings
On pressure sensor 104.Interface 10 is that stethoscope connects interface tube, and the electret of circuit in shell is connected to by the interface 10
On microphone.
The operation extracts pulse wave characteristic point and the pulse wave based on the variation of the pulse wave wave area of pictural surface by host computer
Wave character amount K value obtains the form, intensity and the rhythm and pace of moving things of pulse wave according to the position of characteristic point, wherein with pulse wave wave drawing
Pulse waveform characteristic quantity K value based on product variation, is defined as:
Wherein,PmFor mean arterial pressure, it is equal to pulse pressure P in a cardiac cycle
(t) average value, PS, PdRespectively systolic pressure and diastolic pressure.
Slave computer described in the present embodiment is set as the single-chip microcontroller 101 of model STM32F103RCT6, and slave computer passes through volume
Journey is completed to be completed at the same time air valve 113, air valve 114 and control to air pump 109 the A/D conversion and filter to pulse wave signal
Wave, the A/D conversion of 102 pressure signal of cuff and the calibration of pressure, the extraction of the Korotkoff's Sound of cuff 102 and according to Korotkoff's Sound and sleeve
With 102 pressure values calculate testee systolic pressure and diastolic pressure and with the communication of master system.
Host computer extracts pulse wave characteristic point and the pulse waveform characteristic quantity K based on the variation of the pulse wave wave area of pictural surface
Value, according to the form (shape of wave) of the available pulse wave in the position of characteristic point, intensity (amplitude of wave) and the rhythm and pace of moving things (week of wave
Phase) etc. information, by obtaining test result to testee's blood pressure information and pulse information, with the pulse wave wave area of pictural surface variation be
The pulse waveform characteristic quantity K value on basis, is defined as:
Rm=Pd+K(PS-Pd)
This kind has the detection method of Korotkoff's Sound blood pressure detector, includes the following steps；
Step 1 is closed air valve and is inflated to cuff 102, acquires 104 DC component of pressure sensor, judge that atmospheric pressure value is
It is no to be greater than threshold values, it if more than threshold values, performs the next step suddenly, if being less than threshold values, re-execute the steps one；
Step 2 stops inflating cuff 102, extracts and analyze a certain frequency component of Korotkoff's Sound signal, and acquires pressure
104 DC component of force snesor, judges whether Korotkoff's Sound occur, if there is Korotkoff's Sound, recording the cuff 102 is systolic pressure,
If Korotkoff's Sound disappears, the pressure value for recording the cuff 102 is diastolic pressure；
Step 3 opens air valve inflation, stops inflating cuff 102 when atmospheric pressure value reaches setting value, and by pulse wave
Host computer is sent to pressure value；
Step 4 obtains Pulse-Parameters, shows test result.
As shown in Fig. 2, the login system by host computer enters test pattern, it is first shut off air valve 113, air valve 114, and
By air pump 109 to inflating in cuff 102, ADC analog converter acquires 104 DC component of pressure sensor on single-chip microcontroller 101
And the pressure value of cuff 102 is calculated, when atmospheric pressure value is greater than the threshold values of air valve, air pump 109 stops inflation, when no more than threshold values
When, it is re-closing off air valve 113, air valve 114 and is inflated by air pump 109, until atmospheric pressure value is greater than the threshold values of setting；Work as air valve
109 stop inflation, open air valve 1, and with the deflation of the 5mmHg/s speed of setting, acquire Korotkoff's Sound signal at this time, in acquisition signal
While single-chip microcontroller 101 on ADC analog converter acquisition 104 DC component of pressure sensor and calculate the pressure of cuff 102
Value, extracts and analyzes a certain frequency component of Korotkoff's Sound signal, and acquires 104 DC component of pressure sensor, judges whether
Existing Korotkoff's Sound, if there is Korotkoff's Sound, recording the cuff 102 is systolic pressure, if Korotkoff's Sound disappearance, records the cuff 102
Pressure value is diastolic pressure；It finally opens air valve 114 to lose heart and inflate cuff 102, when the atmospheric pressure value in cuff 102 is greater than
When 70mmHg, stops inflation and pulse wave and pressure value are sent to host computer, host computer calculates corresponding according to pulse wave signal
Pulse-Parameters, finally obtain the test result of tester.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (8)
1. a kind of Korotkoff's Sound blood pressure detector with pulse wave detection, it is characterised in that: including for detecting in cuff (102)
The pressure sensor (104) of pressure signal, and the Korotkoff's Sound pick device (103) for analyzing and handling Korotkoff's Sound, it is described
Pressure sensor (104) includes cuff pressure detection circuit (106) and pulse wave acquires and filter circuit (107), described
Korotkoff's Sound pick device (103) includes Korotkoff's Sound Signal sampling and processing circuit (105).
2. a kind of Korotkoff's Sound blood pressure detector with pulse wave detection according to claim 1, it is characterised in that: described
The output end of Korotkoff's Sound pick device (103) and pressure sensor (104) is respectively connected with slave computer, and the slave computer is separately connected
There are host computer, power management module (11) and driving circuit (108).
3. a kind of Korotkoff's Sound blood pressure detector with pulse wave detection according to claim 2, it is characterised in that: described
Host computer extracts pulse wave characteristic point and the pulse waveform characteristic quantity K value based on the variation of the pulse wave wave area of pictural surface, according to
The position of characteristic point obtains the form, intensity and the rhythm and pace of moving things of pulse wave, wherein the pulse based on the variation of the pulse wave wave area of pictural surface
Wave wave character amount K value, is defined as:
Wherein,PmFor mean arterial pressure, it is equal to the flat of pulse pressure P (t) in a cardiac cycle
Mean value, PS、PdRespectively systolic pressure and diastolic pressure.
4. a kind of Korotkoff's Sound blood pressure detector with pulse wave detection according to claim 1, it is characterised in that: described
The model MPXV5050GP of pressure sensor (104).
5. a kind of Korotkoff's Sound blood pressure detector with pulse wave detection according to claim 2, it is characterised in that: described
Slave computer is set as the single-chip microcontroller (101) of model STM32F103RCT6.
6. a kind of Korotkoff's Sound blood pressure detector with pulse wave detection according to claim 1, it is characterised in that: described
One end of Korotkoff's Sound pick device (103) is equipped with stethoscope head, and the other end is connected with electret microphone.
7. a kind of detection method with Korotkoff's Sound blood pressure detector based on claim 1-6 any one, feature exist
In: include the following steps；
Step 1 is closed air valve and is inflated to cuff (102), acquires pressure sensor (104) DC component, judge that atmospheric pressure value is
It is no to be greater than threshold values, it if more than threshold values, performs the next step suddenly, if being less than threshold values, re-execute the steps one；
Step 2 stops inflating cuff (102), extracts and analyze a certain frequency component of Korotkoff's Sound signal, and acquires pressure
Sensor (104) DC component, judges whether Korotkoff's Sound occur, if there is Korotkoff's Sound, records the cuff (102) to shrink
Pressure, if Korotkoff's Sound disappears, the pressure value for recording the cuff (102) is diastolic pressure；
Step 3 opens air valve inflation, stops inflating cuff (102) when atmospheric pressure value reaches setting value, and by pulse wave and
Pressure value is sent to host computer；
Step 4 obtains Pulse-Parameters, shows test result.
8. a kind of detection method with Korotkoff's Sound blood pressure detector according to claim 7, it is characterised in that: described
The frequency component of Korotkoff's Sound signal is X (t):
X (t)=Asin (ω kt)；
Wherein, acoustic pressure are as follows:
In above-mentioned formula, Xk、Xk-1The respectively sampled value at (k-1) t and kt moment can acquire the sound intensity I of Korotkoff's Sound:
In formula,For average sound pressure, Media density ρ and velocity of sound V are constant, the Korotkoff's Sound sound intensity and sampled signal difference square at
Direct ratio, at the time of which is used to calculate the sound intensity of Korotkoff's Sound and judges Korotkoff's Sound appearing and subsiding.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111513753A (en) * | 2020-04-01 | 2020-08-11 | 中国海洋大学 | Pulse-taking instrument pressure control module based on pulse sound signals |
| CN111513751A (en) * | 2020-04-01 | 2020-08-11 | 中国海洋大学 | Pulse diagnosis instrument acquisition module based on pulse sound signals |
| CN111513752A (en) * | 2020-04-01 | 2020-08-11 | 中国海洋大学 | Pulse diagnosis instrument based on pulse sound signals |
| CN111990982A (en) * | 2020-08-31 | 2020-11-27 | 中国计量科学研究院 | Blood pressure acquisition device, processing system and blood pressure acquisition method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202801595U (en) * | 2012-10-16 | 2013-03-20 | 冯学技 | Electronic sphygmomanometer based on automatic extraction and recognition of kororkoff sound |
| CN107692993A (en) * | 2017-11-08 | 2018-02-16 | 深圳市玉成创新科技有限公司 | A kind of blood pressure instrument |
| CN109044312A (en) * | 2018-08-30 | 2018-12-21 | 东南大学 | A kind of electronic sphygmomanometer and its blood pressure measuring method based on Korotkoff's Sound |
-
2018
- 2018-12-29 CN CN201811637810.2A patent/CN109497981A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202801595U (en) * | 2012-10-16 | 2013-03-20 | 冯学技 | Electronic sphygmomanometer based on automatic extraction and recognition of kororkoff sound |
| CN107692993A (en) * | 2017-11-08 | 2018-02-16 | 深圳市玉成创新科技有限公司 | A kind of blood pressure instrument |
| CN109044312A (en) * | 2018-08-30 | 2018-12-21 | 东南大学 | A kind of electronic sphygmomanometer and its blood pressure measuring method based on Korotkoff's Sound |
Non-Patent Citations (2)
| Title |
|---|
| 罗志昌等: "脉搏波波形特征信息的研究", 《北京工业大学学报》 * |
| 邓静: "柯氏音法与示波法结合的新型血压测量方法研究", 《医药卫生科技辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111513753A (en) * | 2020-04-01 | 2020-08-11 | 中国海洋大学 | Pulse-taking instrument pressure control module based on pulse sound signals |
| CN111513751A (en) * | 2020-04-01 | 2020-08-11 | 中国海洋大学 | Pulse diagnosis instrument acquisition module based on pulse sound signals |
| CN111513752A (en) * | 2020-04-01 | 2020-08-11 | 中国海洋大学 | Pulse diagnosis instrument based on pulse sound signals |
| CN111990982A (en) * | 2020-08-31 | 2020-11-27 | 中国计量科学研究院 | Blood pressure acquisition device, processing system and blood pressure acquisition method |
| CN111990982B (en) * | 2020-08-31 | 2024-03-26 | 中国计量科学研究院 | Blood pressure acquisition device and processing system |
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