CN205163047U - Arteriosclerosis detector control circuit - Google Patents
Arteriosclerosis detector control circuit Download PDFInfo
- Publication number
- CN205163047U CN205163047U CN201520781469.3U CN201520781469U CN205163047U CN 205163047 U CN205163047 U CN 205163047U CN 201520781469 U CN201520781469 U CN 201520781469U CN 205163047 U CN205163047 U CN 205163047U
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- China
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- filter circuit
- control circuit
- converter
- detector control
- utility
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- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The utility model discloses an arteriosclerosis detector control circuit, including singlechip, pressure sensor, filter circuit, pump, bleed valve, keyboard and AD converter, keyboard, host computer, pump, bleed valve and AD converter are connected respectively to the singlechip, and the armlet is still connected to the pump, and pressure sensor and bleed valve are still connected respectively to the armlet, and pressure sensor still connects filter circuit, and filter circuit gives the AD converter with pressure signal and pulse ripples signal transmission respectively. The utility model discloses people's situation of looking after one's health is reminded at any time to the artery elasticity condition that arteriosclerosis detector control circuit can help people to know oneself, and the emergence of reducing the incidence of disease also provides certain reference for the doctor judges patient's arteriosclerosis degree simultaneously, and hardware circuit simple structure is with low costs, small.
Description
Technical field
This utility model relates to a kind of atherosclerosis detector, specifically a kind of atherosclerosis detector control circuit.
Background technology
Blood pressure and Degree of arteriosclerosis are the important physiological parameters of reflection human recycle system function, therefore, to the dynamic monitoring of blood pressure and artery stiffness index clinically tool be of great significance.
Utility model content
The purpose of this utility model is to provide a kind of atherosclerosis detector control circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme:
A kind of atherosclerosis detector control circuit, comprise single-chip microcomputer, pressure transducer, filter circuit, inflator pump, vent valve, keyboard and A/D converter, described single-chip microcomputer connects keyboard, host computer, inflator pump, vent valve and A/D converter respectively, inflator pump also connects arm straps, arm straps also distinguishes Bonding pressure sensor and vent valve, pressure transducer also connects filter circuit, and pressure signal and pulse wave signal are passed to A/D converter by filter circuit respectively.
As further program of the utility model: described pressure transducer adopts MPX5050GP.
As further program of the utility model: described filter circuit adopts second order butter-worth filter circuit.
As further program of the utility model: described A/D converter adopts TLC0832.
As this utility model further scheme: described single-chip microcomputer connects host computer by RS232.
Compared with prior art, the beneficial effects of the utility model are: this utility model atherosclerosis detector control circuit can help people to understand the arterial elasticity situation (i.e. sclerotic conditions) of oneself, people are reminded to look after one's health situation at any time, reduce the generation of disease, simultaneously also for doctor judges the reference that the Degree of arteriosclerosis of patient provides certain, hardware circuit is simple, and cost is low, and volume is little.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of atherosclerosis detector control circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
Refer to Fig. 1, in this utility model embodiment, a kind of atherosclerosis detector control circuit, comprise single-chip microcomputer, pressure transducer, filter circuit, inflator pump, vent valve, keyboard and A/D converter, single-chip microcomputer connects keyboard, host computer, inflator pump, vent valve and A/D converter respectively, inflator pump also connects arm straps, arm straps also distinguishes Bonding pressure sensor and vent valve, pressure transducer also connects filter circuit, and pressure signal and pulse wave signal are passed to A/D converter by filter circuit respectively.
Pressure transducer adopts MPX5050GP.
Filter circuit adopts second order butter-worth filter circuit.
A/D converter adopts TLC0832.
Single-chip microcomputer connects host computer by RS232.
Operation principle of the present utility model is: refer to Fig. 1, by cuff at human body upper arm, by elbow joint side, by Single-chip Controlling air pump to cuff inflation, gather pressure signal by pressure transducer and the maximum of setting inflation simultaneously, inflation is stopped when cuff pressure reaches predetermined value, now, brachial artery blood vessel constriction compels to stop pulsation, then slowly exitted by Single-chip Controlling vent valve, cuff pressure is progressively reduced, when cuff pressure drops to below brachial artery systolic pressure, brachial artery starts to beat, and along with sleeve decline with pressure constantly strengthen.Fluctuating signal on cuff pressure and brachial artery is converted to the signal of telecommunication through pressure transducer, this signal of telecommunication is amplified and two-way Filtering Processing, road cuff pressure signal and a road pulse wave signal can be obtained, sample through A/D, by the communication of single-chip microcomputer and host computer, press at host computer acquisition pulse wave and cuff the data changed, computational analysis is carried out to it and draws out corresponding waveform.
Pressure transducer is responsible for corresponding pressure signal to be converted to the signal of telecommunication, and adopt MPX5050GP pressure transducer, the advantages such as it is good that this sensor has precision, highly sensitive, and capacity of resisting disturbance is strong, the pulse signal distortion that this guarantees extraction is little.The voltage signal exported from pressure transducer presses signal and pulse wave signal to be formed by stacking by cuff, therefore, two-way filter circuit need be adopted to extract respectively, cuff pressure signal is a kind of low frequency signal, employing cut-off frequency is that the low-pass filter circuit of 0.5Hz obtains, pulse wave signal extracts by bandwidth-limited circuit filtering low-frequency d component and High-frequency Interference, adopt filtering performance and stability second order butter-worth filter circuit all preferably, cut-off frequency is chosen to be 0.5Hz and 6Hz, the vibration of pulse wave signal is different with people, generally it changes from being less than 0.133kPa to 0.4kPa, according to the transfer function of MPX5050GP pressure transducer, the voltage being converted to 12mV to 36mV exports by this, consider that filter circuit can produce certain decay in addition, the amplification of Choose filtering circuit is 150 times, can make output signal within the scope of amplifier export-restriction.The quality of filter circuit and the precision of measurement have very large relation, and the selection of filter circuit parameter will directly affect the accuracy of measurement result.
The signal exported from filter circuit sends into single-chip microcomputer through A/D conversion, and adopt TLC0832 chip to carry out the A/D conversion of signal, this chip has the resolution of 8, and has dual pathways input, meets the requirement of the design.The digital signal sending into single-chip microcomputer is sent to host computer by RS232 communication, carries out date processing, can learn atherogenic index.
To those skilled in the art, obvious this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or basic feature, can realize this utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in this utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (5)
1. an atherosclerosis detector control circuit, comprise single-chip microcomputer, pressure transducer, filter circuit, inflator pump, vent valve, keyboard and A/D converter, it is characterized in that, described single-chip microcomputer connects keyboard, host computer, inflator pump, vent valve and A/D converter respectively, inflator pump also connects arm straps, arm straps also distinguishes Bonding pressure sensor and vent valve, and pressure transducer also connects filter circuit, and pressure signal and pulse wave signal are passed to A/D converter by filter circuit respectively.
2. atherosclerosis detector control circuit according to claim 1, is characterized in that, described pressure transducer adopts MPX5050GP.
3. atherosclerosis detector control circuit according to claim 1, is characterized in that, described filter circuit adopts second order butter-worth filter circuit.
4. atherosclerosis detector control circuit according to claim 1, is characterized in that, described A/D converter adopts TLC0832.
5. atherosclerosis detector control circuit according to claim 1, is characterized in that, described single-chip microcomputer connects host computer by RS232.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781469.3U CN205163047U (en) | 2015-10-10 | 2015-10-10 | Arteriosclerosis detector control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781469.3U CN205163047U (en) | 2015-10-10 | 2015-10-10 | Arteriosclerosis detector control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205163047U true CN205163047U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520781469.3U Expired - Fee Related CN205163047U (en) | 2015-10-10 | 2015-10-10 | Arteriosclerosis detector control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN205163047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109770989A (en) * | 2019-01-24 | 2019-05-21 | 中国人民解放军南部战区总医院 | A kind of intelligent vapour-pressure type tourniquet and its control method |
-
2015
- 2015-10-10 CN CN201520781469.3U patent/CN205163047U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109770989A (en) * | 2019-01-24 | 2019-05-21 | 中国人民解放军南部战区总医院 | A kind of intelligent vapour-pressure type tourniquet and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161010 |