CN110090004A - Pliable pressure sensor module and three pulse condition detection diagnostic systems - Google Patents
Pliable pressure sensor module and three pulse condition detection diagnostic systems Download PDFInfo
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- CN110090004A CN110090004A CN201910406634.XA CN201910406634A CN110090004A CN 110090004 A CN110090004 A CN 110090004A CN 201910406634 A CN201910406634 A CN 201910406634A CN 110090004 A CN110090004 A CN 110090004A
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- pulse condition
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- air bag
- inspection unit
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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
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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
- A61B5/48—Other medical applications
- A61B5/4854—Diagnosis based on concepts of traditional oriental medicine
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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
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
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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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
Abstract
The invention discloses a kind of pliable pressure sensor module, including silica gel air bag and communicate therewith and the pressure sensor of detection gas pressure in it；The silica gel air bag is cylindrical body, and the side of the cylindrical body is equipped with fold, and bottom surface is arc convex.The invention also discloses a kind of three pulse condition detection diagnostic systems, which includes pulse-tracing collection module；The pulse-tracing collection module includes cun portion's pulse condition inspection unit, pass portion pulse condition inspection unit and a ruler portion pulse condition inspection unit；Very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit and the ruler portion pulse condition inspection unit include above-mentioned pliable pressure sensor module.The present invention can collect three pulse condition informations of cun,guan,chi simultaneously, answer discharge technique for pulse condition and tele-medicine provides data and guarantees, a large amount of pulse profile data may be that intelligent medical provides training set abundant.
Description
Technical field
The present invention relates to pulse conditions to measure diagnostic field, in particular to pliable pressure sensor module and three pulse condition detections is examined
Disconnected system.
Background technique
Currently, traditional Chinese medicine is thousands of years of crystallizations of wisdom of the Chinese nation, tcm diagnosis is the important composition portion of theory of traditional Chinese medical science
Point, Chinese medicine is not only made that greatly brilliant contribution Chinese on the ground, while also propagating constantly into world wide, is full generation
The medical industry on boundary is made that huge contribution.Wherein, important in diagnosis by feeling the pulse especially traditional Chinese medicine and related oriental medicine system
Diagnostic tool.
It says in " Plain Questions-three body parts and nine pulse taking sites opinion ": " people has three, each portion of the pulse owning three pulsetakings, with life-and-death life, to locate all kinds of diseases and ailments, and with correcting the deficiency and excess,
And evil removing disease." blood flows through the vital organs of the human body in the blood vessel, carrying physiological and pathological information can be to human body by feeling the pulse at person's pulse on the wrist
Carry out comprehensive and accurate non-invasive diagnosis.Person's pulse on the wrist point is waited internal organs by the purport of ancient Chinese medicine doctor honor "Nei Jing", it may be assumed that and the right hand is partially prosperous in gas,
Left hand is partially prosperous, and in blood, lung governing qi, gas is prosperous in the right side, and gas is united by lung, therefore with right cun with lung: the main blood of the heart, the prosperous Yu Zuo of blood, therefore with left cun
With the heart；Spleen is occupied by state, body is to the left and promoting the circulation of qi in the right side, therefore spleen is to wait right pass；Blood stored in the liver, though body, on the right side, and gasification is rendered in
A left side, therefore liver is with Hou Zuoguan；Kidney by waist, occupy it is most lower, therefore wait in two rulers.
Presentation of the pulse condition as the QI-blood circulation whole body, always by the attention of doctor, but the development of Chinese medicine and succession are total
It has been filled with difficult barrier.On the one hand during the succession of Chinese medicine, because geographical location difference and school statement on disagreement,
Lead to occur the phenomenon that same arteries and veins different name or different arteries and veins of the same name often；On the other hand an exper ienced old docter of TCM is often basis
What the diagnostic experiences of many years accumulated, old docter of TCM rareness but also good Chinese medicine resource be always at shortage status,
Young traditional Chinese physician cannot be accumulated experience by a large amount of case.
Both at home and abroad at the beginning of last century just just objectify to Chinese medicine carry out exploration research, it is at this stage, most important
Still although single portion's electropulsograph based on single probe detection pass portion, this detection method have certain adaptability to electropulsograph,
But the information of detection is single, does not meet Traditional Chinese Medicine three body parts and nine pulse taking sites and feels the pulse theory, cannot detect more comprehensive pulse condition letter
Breath.Secondly, collected information is more, the requirement to user is also higher, and current diagnosis by feeling the pulse equipment, being required to user has centainly
Tcm knowledge, oneself can independently find cun,guan,chi three positions, or with the help of medical professional
More accurately pulse condition information can just be collected.This also further limits the application of pulse-taking instrument.
So during Chinese medicine objectifies especially objectification of pulse examination, how to obtain more comprehensively, accurately, packet
" cun,guan,chi " three information are included, there is the acquisition system of " floating, in, heavy " different pulse pressures just to become key, also only have
It objectifies in this way, the acquisition system of standardization can just help Chinese medicine preferably to pass on and development.
Summary of the invention
In view of the above-mentioned problems, being provided the present invention is directed to promote Chinese medicine to objectify under the especially major premise of objectification of pulse examination
A kind of volume is smaller, cost is lower, more comprehensive accurate, the user-friendly pliable pressure sensor group used of acquisition data
Part and three pulse condition detection diagnostic systems.
The technical scheme adopted by the present invention to solve the technical problems existing in the known art is that a kind of pliable pressure passes
Sensor component including silica gel air bag and communicates therewith and the pressure sensor of detection gas pressure in it；The silica gel air bag
For cylindrical body, the side of the cylindrical body is equipped with fold, and bottom surface is arc convex.
Further, the silica gel air bag is cylinder.
It further, further include fixing seat, the lower surface of the fixing seat is arc-shaped concave, the top surface of the silica gel air bag
It is affixed with the lower surface of the fixing seat.
Further, wrist strap is connected at left and right sides of the fixing seat.
The present invention also provides a kind of three pulse condition detection diagnostic systems, which includes that pulse condition is adopted
Collect module；The pulse-tracing collection module includes: to close for acquiring cun very little portion's pulse condition inspection unit of portion's pulse condition information for acquiring
The pass portion pulse condition inspection unit of portion's pulse condition information, and the ruler portion pulse condition inspection unit for acquiring ruler portion pulse condition information；It is described
Very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit and the ruler portion pulse condition inspection unit include above-mentioned flexible pressure
Force sensor module.
Further, which further includes the signal pre-processing module being sequentially connected electrically, Wei Chu
Manage device module and pressure control module；The signal pre-processing module be used for the detection signal of the pulse-tracing collection module into
Row filtering processing；The pressure control module is used for the silica gel air bag inflation/deflation；The microprocessor module output signal
Control the work of the pressure control module.
Further, the pressure control module includes respectively corresponding and very little portion's pulse condition inspection unit, the pass portion
Pulse condition inspection unit and three groups of air bag inflation/deflation units of ruler portion pulse condition inspection unit connection；Air bag inflation/deflation described in every group
Unit includes a peristaltic pump and a slow powered down magnet valve；The air inlet of the silica gel air bag and the delivery outlet of the peristaltic pump connect
It is logical；The gas outlet of the silica gel air bag is connected to the slow powered down magnet valve.
Further, air bag inflation/deflation unit described in every group further includes a gas storage storehouse；The gas storage storehouse and the silica gel
Air bag connection；The air inlet in the gas storage storehouse is connected to the delivery outlet of the peristaltic pump；The gas outlet in the gas storage storehouse with it is described
Slow powered down magnet valve connection.
Further, the signal pre-processing module includes differential amplifier circuit；The differential amplifier circuit input terminal point
It Dui Ying not be electrically connected with the positive-negative output end of the pressure sensor, the output end of the differential amplifier circuit is simultaneously connected to low pass filtered
Wave circuit and high low pass combined filter circuit.
It further, further include communication module and host computer, the microprocessor module is sent by the communication module
Pulse profile data is to the host computer；The host computer extracts temporal signatures after pulse profile data is carried out digital filtering, and by three
Pulse condition information real-time display.
The advantages and positive effects of the present invention are: Traditional Chinese Medicine is combined with engineering technology, for Chinese medicine visitor
Sightization has positive effect.Relative to single portion's electropulsograph on the market, the present invention can acquire three pulse condition informations of cun,guan,chi, adopt
It is more abundant to collect information；Pulse condition information is transmitted using Internet technology, high-quality medical resource can be shared, while being pulse condition
Multiple discharge technique and tele-medicine provide more accurate reliable data and support；Each collection terminal of pulse-tracing collection module is all made of
With the airbag form of skin flexible contact, previous pressure resistance type (or piezoelectric type) hard sensor acquisition position inaccuracy is improved,
The disadvantages of uncomfortable with human contact, the flexible sensor are contacted with wrist radial artery, can be traversed wrist lateral position, be changed
Into the inaccurate problem of positioning, the design of two layers of pleat is not so that air bag and skin are allowed to be also easy to produce relative displacement, and positioning is more acurrate, behaviour
Work is easier, and greatly reduce user uses threshold, is more advantageous to the popularization for pushing pulse wave spectrum；The pulse-tracing collection equipment will
User is directly separated with sensor, substantially increases the service life of pressure sensor, provides for pulse-taking instrument a kind of novel
Pulse-tracing collection mode；The gas plus-minus laminated structure combined using peristaltic pump with solenoid valve is simple, and pressure sensor acquires information
Entire pressure process can be traversed, the best pulse pressure of quick obtaining acquires more comprehensive arteries and veins during continuous decompression
Image information；The present invention transmits digital pulse condition information using Internet technology, establishes individual database to provide for expert diagnosis
With reference to the shared of high-quality medical resource may be implemented, while collecting three pulse condition informations of cun,guan,chi, answers discharge technique for pulse condition
And tele-medicine provides data guarantee, a large amount of pulse profile data may be that intelligent medical provides training set abundant.
Detailed description of the invention
Fig. 1 is a kind of pliable pressure sensor module structural schematic diagram of the invention；
Fig. 2 is three pulse condition detection diagnostic system structural schematic diagrams of one kind of the invention；
Fig. 3 is three pulse condition detection diagnostic system signal transmitting schematic diagrames of one kind of the invention；
Fig. 4 is a kind of signal pre-processing module working principle block diagram of the invention；
Fig. 5 is a kind of microprocessor module working principle diagram of the invention；
Fig. 6 is a kind of signal pre-processing module working principle diagram of the invention；
Fig. 7 is a kind of drive circuit works schematic diagram of peristaltic pump of the invention；
Fig. 8 is a kind of coil driver working principle diagram of slow powered down magnet valve of the invention；
Fig. 9 is a kind of communication module working principle diagram of the invention.
In figure: 1, blow vent；2, fixing seat；3, wrist strap is buckled；4, silica gel air bag；5, wrist strap；6, pass portion pulse condition inspection unit；
7, silicone tube；8, pressure sensor；9, slow powered down magnet valve；10, peristaltic pump；11, gas storage storehouse；12, circuit board.
Specific embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following embodiment, and cooperate attached drawing
Detailed description are as follows:
Referring to Figure 1, a kind of pliable pressure sensor module, including silica gel air bag 4 and communicate therewith and detection is in it
The pressure sensor 8 of gas pressure；The silica gel air bag 4 is cylindrical body, and the side of the cylindrical body is equipped with fold, and bottom surface is
Arc convex.The silica gel air bag 4 can be cylinder.Pressure sensor 8 is the commercial product of detectable gas pressure, is selected
Detection pressure limit matches with pulse pressure range.P-300C type pressure sensor 8, sensitivity can be used in pressure sensor 8
For 0.2mv/mmHg, it is connected with silica gel air bag 4, is obtained by using gas pressure change in the detection air bag of pressure sensor 8
Pulse signal, 8 pressure limit of pressure sensor can be 300mmHg, be much larger than intracapsular pressure value variation range.
To may also include fixing seat 2 convenient for fixed silica gel air bag 4, the lower surface of the fixing seat 2 can be arc-shaped concave,
It the top surface of the silica gel air bag 4 can be affixed with the lower surface of the fixing seat 2.The fixing seat 2 and the silica gel air bag 4 can be used
Bonding agent etc. bonds together；The left and right sides of the fixing seat 2 can be connected with wrist strap 5.
For fixing seat 2 for fixing the components such as silica gel air bag 4, the side surface that fixing seat 2 is contacted with wrist is designed as arc
Shape concave surface, meets human body physiological characteristics.4 wall thickness of silica gel air bag is preferably 0.5~1mm, be can be selected as 0.8mm thickness silica gel gas
Capsule, 4 side of silica gel air bag can be equipped with two layers of pleat, and when silica gel 4 inflation/deflation of air bag, fold can be prevented in pressure process with flexible
In, silica gel air bag 4, which touches, there is relative displacement between the surface of wrist and wrist.2 two sides of fixing seat can be equipped with wrist strap and buckle 3, wrist
Buckle 3 can connect cyclic annular wrist strap 5, and such fixing seat 2 is constrained by cyclic annular wrist strap 5 and is fixed on wrist, fit in silica gel air bag 4
At wrist pulse-tracing collection.The width of fixing seat 2 and cyclic annular wrist strap 5 can be 1-2cm, three fixing seats 2 and cyclic annular wrist strap 5 and discharge
When setting, overall width can be no more than 6cm, meet wrist cun, close, three size requirements of mouth.
Fig. 2 is referred to, the present invention also provides a kind of three pulse condition detection diagnostic system embodiments, which is examined
Disconnected system includes pulse-tracing collection module；The pulse-tracing collection module includes: very little portion's pulse condition inspection for acquiring cun portion's pulse condition information
Unit is known, for acquiring the pass portion pulse condition inspection unit of pass portion pulse condition information, and the ruler portion for acquiring ruler portion pulse condition information
Pulse condition inspection unit；Very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit 6 and the ruler portion pulse condition inspection unit
It include above-mentioned pliable pressure sensor module.
Fig. 3 is referred to, which may also include the signal pre-processing module being sequentially connected electrically, mould
Number conversion module, microprocessor module and pressure control module；The analog-to-digital conversion module will come from the Signal Pretreatment
The analog signal of module is converted into digital signal and exports to the microprocessor module；It can also be using included analog-to-digital conversion function
The microprocessor module of energy.Then three pulse condition detection diagnostic systems may also include the signal pre-processing module being sequentially connected electrically,
Microprocessor module and pressure control module.Very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit 6 and described
Ruler portion pulse condition inspection unit, which respectively corresponds, exports the acquisition wrist cun,guan,chi portion pulse condition information of acquisition to Signal Pretreatment mould
Block.
The signal pre-processing module can be used for being filtered the detection signal of the pulse-tracing collection module；It is described
Pressure control module can be used for 4 inflation/deflation of silica gel air bag；The exportable signal of microprocessor module controls the pressure
The work of power control module.
Fig. 4 is referred to, signal pre-processing module mainly carries out preliminary filtering and put to the signal of pulse-tracing collection module acquisition
Greatly, reach its range of signal within the scope of the applied signal voltage of micro treatment module or analog-to-digital conversion module.The signal is located in advance
Managing module may include differential amplifier circuit；The differential amplifier circuit input terminal can respectively correspond and the pressure sensor 8
Positive-negative output end electrical connection, the output end of the differential amplifier circuit can and be connected to low-pass filter circuit and high low pass combined filter
Circuit；The low-pass filter circuit and the high low pass combined filter circuit can respectively with micro treatment module or analog-to-digital conversion module
Electrical connection.In view of human pulse wave major frequency components concentrate between 0.08Hz-20Hz, signal pre-processing module can be adopted
Static pressure signal is extracted with the low-pass filter of 0.08Hz, while the high-pass filter of 0.08Hz and the low pass filtered of 23.4Hz can be used
Wave device combines, and composition bandpass filter extracts pulse beat signals (dynamic pressure signal).
Fig. 6 is referred to, Fig. 6 is a kind of signal pre-processing module working principle diagram of the invention, the pressure sensor 8
The pulse signal of positive-negative output end output acquisition；Wherein, positive output end outputs signal to the differential amplifier circuit VIN+ of AD620
Leads ends, negative output terminal output signal to the differential amplifier circuit VIN- leads ends of AD620.The pressure sensor 8 described in this way
The pulse signal of positive-negative output end output amplified by differential amplifier circuit based on AD620, millivolt level signal is tentatively put
Greatly in analog-to-digital conversion module input voltage range, AD620 is powered using single supply, carries out impedance transformation output by transformer
2.5V current potential lose negative pressure signal will not as the reference potential of AD620.The output end of AD620 simultaneously connects two-way, all the way for
Low-pass filter circuit exports the static pressure signal of pulse condition；It is all the way to be combined through series connection by high-pass filtering circuit and low-pass filter circuit
High low pass combined filter circuit, export pulse condition dynamic pressure signal.
The static pressure signal and dynamic pressure signal of signal pre-processing module output can carry out analog-to-digital conversion by analog-to-digital conversion module
After be input to microprocessor module；It can also be directly inputted into the microprocessor module of included analog-digital converter.
Ads1256 chip equal modulus converter ic can be used in analog-to-digital conversion module and its peripheral circuit is constituted, described
Very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit 6 and the ruler portion pulse condition inspection unit, the pulse condition letter of acquisition
Number, after signal pre-processing module is handled, the static pressure and dynamic pressure signal of pulse condition are exported, can be incited somebody to action each by analog-to-digital conversion module
Output is into microprocessor module after the static pressure of pulse condition and the analog signal of dynamic pressure signal are separately converted to digital signal.
Pulse-tracing collection module can acquire three dynamic pressures of wrist radial artery cun,guan,chi and static pressure simultaneously.Signal pre-processing module
Correspondence handles very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit 6 and the ruler portion pulse condition inspection unit respectively
Acquisition signal, and do not influence each other.Signal pre-processing module may include three identical signal processing circuits, to cun,guan,chi
Three acquisition information are filtered simultaneously and enhanced processing；A signal processing circuit can also be used, in the control of microprocessor
Under system, time-division processing.The accordingly signal processing circuit phase of the A/D conversion circuit of analog-to-digital conversion module and signal pre-processing module
Matching.
Fig. 5 is a kind of microprocessor module working principle diagram of the invention；Its pin PC0~PC3, PA1~PA7 etc. can make
It is used for the input terminal of pulse signal, dynamic pressure and static pressure signal input of six input terminals therein as three pulse conditions can be chosen
End；Its pin PC4 to PC9 etc. can be used as output signal end, and output signal controls the work of the pressure control module.Its pin
RXD and TXD etc. can be used as the transmitting and receiving terminal with host computer signal communication.
Fig. 2 is referred to, the pressure control module may include respectively corresponding and very little portion's pulse condition inspection unit, the pass
Portion's pulse condition inspection unit 6 and three groups of air bag inflation/deflation units of ruler portion pulse condition inspection unit connection；Air bag described in every group fills
Deflating cells may include a peristaltic pump 10 and a slow powered down magnet valve 9；The air inlet of the silica gel air bag 4 can be with the wriggling
The delivery outlet connection of pump 10；The gas outlet of the silica gel air bag 4 can be connected to the slow powered down magnet valve 9.Further, every group of institute
Stating air bag inflation/deflation unit may also include a gas storage storehouse 11；The gas storage storehouse 11 can be connected to the silica gel air bag 4；Gas storage storehouse
11 are connected to the silica gel air bag 4 by silicone tube 7.The air inlet in the gas storage storehouse 11 can be with the delivery outlet of the peristaltic pump 10
Connection；The gas outlet in the gas storage storehouse 11 can be connected to the slow powered down magnet valve 9.Gas storage storehouse 11 is customized to the volume of 200ml, both
Volume matching can be carried out with silica gel air bag 4, guarantee signal transmission precision, and pressure buffer can be carried out, improve entire decompression
Stability in the process.Gas storage storehouse 11 can be also connected with the silica gel air bag 4 and pressure sensor 8 by three-way connection, and three
First port connects gas storage storehouse 11 in pass joint, and second port connects silica gel air bag 4, and third port head connects pressure sensor 8, and three tunnels are
Peristaltic pump and solenoid valve can be connected to gas storage storehouse by intercommunication respectively, directly carry out inflation/deflation to gas storage storehouse, realize pressurization decompression
Operation.
Peristaltic pump 10 can be used 6V miniature peristaltic pump 10, and when work can inflate into gas storage storehouse 11 or silica gel air bag 4, increase
Add silica gel air bag 4 and wrist pressure, air pressure in gas storage storehouse 11 or silica gel air bag 4 can be stablized when stopping working.Slow powered down magnet valve 9
Normally closed type low-voltage solenoid valve can be selected, when needing to depressurize, slow powered down magnet valve 9 is slowly deflated outward, in silica gel air bag 4 pressure by
It gradually reduces, silica gel air bag 4 is also decreased with wrist pressure.
Fig. 7 and Fig. 8 are referred to, when needing to pressurize, microprocessor module outputs signal to the driving circuit of peristaltic pump 10, right
Peristaltic pump 10 issues instruction, and the driving circuit output voltage of peristaltic pump 10 starts peristaltic pump 10, and peristaltic pump 10 will be soft in 3-6 seconds
Property sensor and skin between boost in pressure to 200g power, then microprocessor module outputs signal to the line of slow powered down magnet valve 9
Driving circuit is enclosed, powered down 9 coil of magnet valve obtains electric slowly, and slow powered down magnet valve 9 is started to work immediately, slowly reduces inside flexible sensor
Pressure is until pressure is less than 20g power between flexible sensor and skin.
Fig. 3 and Fig. 9 are referred to, which also may also include communication module and host computer, described
Microprocessor module can send pulse profile data to the host computer by the communication module；The host computer can be by pulse profile data
Temporal signatures are extracted after carrying out digital filtering, and can be by three pulse condition information real-time displays.
Pulse-tracing collection module, signal pre-processing module, analog-to-digital conversion module, microprocessor module, is led to pressure control module
The modular assemblies such as news module, host computer and power module and circuit can encapsulate on the circuit board 12, and circuit board 12 can be equipped with outer
Port is patched, is connect with input or output lead.
Illustrate the structure and its working principle of the preferred embodiment of the present invention in detail further below.
A kind of three pulse condition detection diagnostic systems, including pulse-tracing collection module, pressure control module, Signal Pretreatment mould
The modular assemblies such as block, analog-to-digital conversion module, microprocessor module, communication module, host computer and power module.Microprocessor mould
STM32F series microprocessor can be used in block, and serial communication module can be used in communication module, and pulse-tracing collection module is in microprocessor
Pulse condition information is acquired under the control of module, pulse profile data is transmitted to host computer by serial communication, host computer will receive
Pulse profile data extracts temporal signatures after carrying out digital filtering, and three pulse condition information real-time displays are come out, while will be more complete
Three pulse condition informations in face are uploaded to server end, make more comprehensive diagnosis report by server end and return to user.Letter
The modules such as number preprocessing module, analog-to-digital conversion module, microprocessor module, communication module and circuit can be packaged together.
The pulse-tracing collection module includes cun portion's pulse condition inspection unit, pass portion pulse condition inspection unit 6 and the pulse condition detection of ruler portion
Unit；Very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit 6 and the ruler portion pulse condition inspection unit include one
A pliable pressure sensor module.
Pliable pressure sensor module in three pulse condition detection diagnostic systems comprising silica gel air bag 4 and connect with it
The pressure sensor 8 of logical simultaneously its interior gas pressure of detection；The 4 pref. cylindrical body silica gel air bag 4 of silica gel air bag, silica gel air bag
4 side is equipped with two layers of fold, and bottom surface is arc convex.Pressure sensor 8 uses P -300C type pressure sensor 8.Silica gel
The fixing seat 2 of air bag 4, the preferred arc-shaped concave in the bottom surface being fixedly connected with silica gel air bag 4, two sides are equipped with wrist strap and buckle 3, and wrist strap is buckled
3 connect cyclic annular wrist strap 5, and such fixing seat 2 is constrained by cyclic annular wrist strap 5 and is fixed on wrist, and silica gel air bag 4 is made to fit in wrist arteries and veins
At acquisition, when the width of fixing seat 2 and cyclic annular wrist strap 5 can be 2cm, three fixing seats 2 and cyclic annular wrist strap 5 placed side by side, always
Width is 6cm, meets wrist cun, closes, three size requirements of mouth.
The signal pre-processing module may include differential amplifier circuit；The differential amplifier circuit input terminal can respectively correspond
It is electrically connected with the positive-negative output end of the pressure sensor 8, the output signal of pressure sensor 8 passes through the difference based on AD620
Amplifying circuit amplification, millivolt level signal is tentatively amplified in analog-to-digital conversion module input voltage range, and AD620 uses single supply
Power supply carries out impedance transformation output 2.5V current potential as the reference potential of AD620 by transformer and negative pressure signal will not be lost
It loses.
The output end of differential amplifier circuit can and be connected to low-pass filter circuit and high low pass combined filter circuit；The low pass
Filter circuit and the high low pass combined filter circuit can be electrically connected with the analog-to-digital conversion module respectively.In view of human pulse
Wave major frequency components concentrate between 0.08Hz-20Hz, signal pre-processing module, and the low-pass filter that 0.08Hz can be used mentions
The low-pass filter of the high-pass filter and 23.4Hz that take static pressure signal, while 0.08Hz can be used combines, composition band logical filter
Wave device extracts pulse beat signals (dynamic pressure signal).
Ads1256 chip can be used in analog-to-digital conversion module and its peripheral circuit is constituted, and the sampling precision of ads1256 chip is
24, sample frequency is set as 150Hz, much meets pulse signal frequency range.
Pressure control module may include respectively corresponding and very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit
6 and the ruler portion pulse condition inspection unit connection three groups of air bag inflation/deflation units；Air bag inflation/deflation unit described in every group may include
One peristaltic pump, 10, gas storage storehouses 11 and a slow powered down magnet valve 9；The blow vent 1 of the silica gel air bag 4 can be with the gas storage
Storehouse 11 is connected to；The air inlet in the gas storage storehouse 11 can be connected to the delivery outlet of the peristaltic pump 10；The outlet in the gas storage storehouse 11
Mouth can be connected to the slow powered down magnet valve 9.
Gas storage storehouse 11 is connected to the silica gel air bag 4 by silicone tube 7.Peristaltic pump 10 uses 6V miniature peristaltic pump 10, slowly
Powered down magnet valve 9 selects normally closed type low-voltage solenoid valve, and slow powered down magnet valve 9 is slowly deflated outward, and pressure gradually decreases in gas storage storehouse 11,
Silica gel air bag 4 is also decreased with wrist pressure.
Microprocessor module is made of STM32F373 single-chip microcontroller and its correlation combiner circuit, when needing to pressurize, microprocessor
Module issues peristaltic pump 10 and instructs, and peristaltic pump 10 is in five seconds by boost in pressure between flexible sensor and skin to 200g
Power, slow powered down magnet valve 9 are started to work immediately, slowly reduce flexible sensor internal pressure until between flexible sensor and skin
Pressure is less than 20g power, and pressure sensor 8 is able to collect the pulse signal of entire decompression process, and three signal independent acquisitions are each
It does not interfere.Digital pulse signal by AD conversion is uploaded to upper computer software by MAX232 serial port communication chip and carries out into one
Walk digital filtering.
The working principle of the invention:
Very little portion's pulse condition, pass portion pulse condition and ruler portion pulse condition are adopted by the identical pliable pressure sensor module in three tunnels respectively
Collection, the processing circuit of signal are also identical；When using the present invention, cun,guan,chi three at wrist radial artery is fixed at pulse-tracing collection end
Portion's corresponding position, flexible sensor are fitted closely with skin, and initial pressure is in less than 20 gram forces, silica gel air bag 4 between contact surface
Compressive state.By taking pass portion pulse-tracing collection process as an example, the fixing seat 2 of pliable pressure sensor module is fixed on user's radial artery pass
Portion, under acquisition state, silica gel air bag 4 and skin contact receive pulse beat signals, and pressure sensor 8 passes through perception silica gel gas
Capsule 4 pressure fluctuating in inner obtains pulse condition information.When starting pressurization, microprocessor module outputs signal to the driving of peristaltic pump 10
The driving circuit output voltage driving peristaltic pump 10 of circuit, peristaltic pump 10 works, and peristaltic pump 10 is started to work, and pressure sensor is worked as
After pressure reaches setting value in 8 detection silica gel air bags 4, pressure is slightly larger than 200 gram forces between silica gel air bag 44 and skin at this time, wriggles
Pump 10 stops working, and slow powered down magnet valve 9 is started to work, and atmospheric pressure value in gas storage storehouse 11 is reduced by slowly deflating, so that silica gel gas
Pressure traverses 200g-20g pressure limit between capsule 4 and skin, obtains more comprehensive pulse condition letter within the scope of modrate and heavey pressing different pressures
Breath, in decompression process, pressure sensor 8 obtains the pulse condition beating information of entire decompression process.It is pressed in entire collection process
Force snesor 8 can obtain static pressure data and dynamic pressure data.Signal pre-processing module can be to pressure sensor 8
The signal of output does preliminary treatment, and millivolt level signal is tentatively amplified to analog-to-digital conversion mould based on the differential amplifier circuit of AD620
In block input voltage working range, digital signal is converted analog signals by analog-to-digital conversion module, is passed through serial communication modular
It transports to host computer to be further processed, host computer entangles drift, feature extraction by wavelet transformation, baseline to the digital signal received
Etc. modes carry out digital filtering, one side real-time display pulse wave, pulse frequency, the master datas such as pulse pressure, time domain charactreristic parameter,
On the other hand individual subscriber pulse profile data, which is uploaded to server, establishes individual database, provides user's diagnostic result by server
And best coordinating program.
Above-mentioned pulse-tracing collection module, pressure control module, signal pre-processing module, analog-to-digital conversion module, microprocessor
The components such as the modular assemblies such as module, communication module, host computer and power module and electrical component, pressure sensor can be adopted
With commercially available product, common knowledge or this field conventional techniques and other disclosed available circuits are can also be used in circuit,
Specific circuit connection and control method can be according to product descriptions, using the circuit connection and conventional control of conventional technical means
Method.
Embodiment described above is merely to illustrate technical idea and feature of the invention, in the art its object is to make
Technical staff it will be appreciated that the contents of the present invention and implement accordingly, patent model of the invention only cannot be limited with the present embodiment
It encloses, i.e., same changes or modifications made by all disclosed spirit are still fallen in the scope of the patents of the invention.
Claims (10)
1. a kind of pliable pressure sensor module, which is characterized in that including silica gel air bag and communicate therewith and detection gas in it
The pressure sensor of body pressure；The silica gel air bag is cylindrical body, and the side of the cylindrical body is equipped with fold, and bottom surface is arc
Convex surface.
2. pliable pressure sensor module according to claim 1, which is characterized in that the silica gel air bag is cylinder
Body.
3. pliable pressure sensor module according to claim 1, which is characterized in that it further include fixing seat, the fixation
The lower surface of seat is arc-shaped concave, and the top surface of the silica gel air bag and the lower surface of the fixing seat are affixed.
4. pliable pressure sensor module according to claim 3, which is characterized in that connect at left and right sides of the fixing seat
It is connected to wrist strap.
5. a kind of three pulse condition detection diagnostic systems, which is characterized in that including pulse-tracing collection module；The pulse-tracing collection module packet
It includes: for acquiring cun very little portion's pulse condition inspection unit of portion's pulse condition information, for acquiring the pass portion pulse condition detection of pass portion pulse condition information
Unit, and the ruler portion pulse condition inspection unit for acquiring ruler portion pulse condition information；Very little portion's pulse condition inspection unit, the pass portion
Pulse condition inspection unit and the ruler portion pulse condition inspection unit include that pliable pressure described in Claims 1-4 any one passes
Sensor component.
6. three pulse conditions detection diagnostic system according to claim 5, which is characterized in that further include the letter being sequentially connected electrically
Number preprocessing module, microprocessor module and pressure control module；The signal pre-processing module is for adopting the pulse condition
The detection signal of collection module is filtered；The pressure control module is used for the silica gel air bag inflation/deflation；It is described micro-
Processor module output signal controls the work of the pressure control module.
7. three pulse conditions detection diagnostic system according to claim 6, which is characterized in that the pressure control module includes
It respectively corresponds and is connected to very little portion's pulse condition inspection unit, the pass portion pulse condition inspection unit and the ruler portion pulse condition inspection unit
Three groups of air bag inflation/deflation units；Air bag inflation/deflation unit described in every group includes a peristaltic pump and a slow powered down magnet valve；Institute
The air inlet for stating silica gel air bag is connected to the delivery outlet of the peristaltic pump；The gas outlet of the silica gel air bag and the slow powered down magnetic
Valve connection.
8. three pulse conditions detection diagnostic system according to claim 7, which is characterized in that air bag inflation/deflation list described in every group
Member further includes a gas storage storehouse；The gas storage storehouse is connected to the silica gel air bag；The air inlet and the wriggling in the gas storage storehouse
The delivery outlet of pump is connected to；The gas outlet in the gas storage storehouse is connected to the slow powered down magnet valve.
9. three pulse conditions detection diagnostic system according to claim 6, which is characterized in that the signal pre-processing module packet
Include differential amplifier circuit；The differential amplifier circuit input terminal is respectively corresponded to be electrically connected with the positive-negative output end of the pressure sensor
It connects, the output end of the differential amplifier circuit is simultaneously connected to low-pass filter circuit and high low pass combined filter circuit.
10. three pulse conditions detection diagnostic system according to claim 6, which is characterized in that further include communication module and upper
Position machine, the microprocessor module send pulse profile data to the host computer by the communication module；The host computer is by arteries and veins
Image data extracts temporal signatures after carrying out digital filtering, and by three pulse condition information real-time displays.
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| CN114159033A (en) * | 2021-12-29 | 2022-03-11 | 上海国民集团健康科技有限公司 | Pulse condition composite sensing device based on liquid bag and air bag and pulse condition instrument applied by pulse condition composite sensing device |
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