CN203524655U - Apparatus for measuring pulse wave and blood pressure - Google Patents
Apparatus for measuring pulse wave and blood pressure Download PDFInfo
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- CN203524655U CN203524655U CN201320422604.6U CN201320422604U CN203524655U CN 203524655 U CN203524655 U CN 203524655U CN 201320422604 U CN201320422604 U CN 201320422604U CN 203524655 U CN203524655 U CN 203524655U
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- pulse wave
- pressure
- blood pressure
- collecting unit
- wrist strap
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Abstract
The utility model provides an apparatus for measuring pulse wave and blood pressure, comprising a wrist strap, a pulse wave sensor, an air bag which is disposed in the wrist strap and can be pressurized and depressurized, an air source, a pressure sensor, a collecting unit, and a calculating unit. The pulse wave sensor is disposed on the wrist strap, and obtains a first pulse wave in a manner of directly acquiring real-time pulse vibration pressure from a radial artery. The air source supplies air with controllable pressure to the air bag. The pressure sensor is disposed on a transmission pipeline of the air source and the air bag for detecting the air pressure in the wrist strap. The collecting unit collects the first pulse wave and the air pressure. The calculating unit is connected to the collecting unit, and calculates the average pressure and systolic pressure and diastolic pressure based on the air pressure and with the pulse wave being the rectification parameter.
Description
Technical field
This utility model relates to sphygomanometer, especially relates to the device of measuring pulse wave and blood pressure.
Background technology
Sphygomanometer in order to Measure blood pressure has developed into electric sphygmomanometer from mercurial sphygmomanometer.Current third generation electric sphygmomanometer is mainly wrist type electric sphygmomanometer, it is based on hemodynamic principle, adopt inflation wrist strap blocking-up radial artery blood flow, measurement is superimposed upon the pressure wave (being pulse wave) of synchronizeing with heartbeat on wrist strap pressure, then estimates blood pressure according to the relation between pulse wave amplitude and wrist strap pressure.
The main difficulty of this technology is the detection of pulse wave.The factors such as the elastic characteristic of ductus arteriosus wall, blood viscosity, cuff compliance all can affect the ripple amplitude of pulse wave, thereby affect the Measurement accuracy of blood pressure.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of device of measuring pulse wave and blood pressure, and it can measure pulse wave more exactly, thereby as the basis of blood pressure measurement.
This utility model is that to solve the problems of the technologies described above the technical scheme adopting be to propose a kind of device of measuring pulse wave and blood pressure, comprises wrist strap, pulse wave sensor in order to coated human body wrist, is arranged in this wrist strap and can be pressurized and air bag, gas source, pressure transducer, collecting unit and the computing unit of blood pressure lowering.Pulse wave sensor is arranged on this wrist strap, by directly, from the mode of the real-time pulse vibration pressure of radial artery collection, obtains the first pulse wave.Gas source provides the controlled gas of pressure to this air bag.Pressure transducer is arranged in the transfer conduit of this gas source and this air bag, in order to detect the gas pressure intensity in wrist strap.Collecting unit gathers this first pulse and involves this gas pressure intensity.Computing unit connects this collecting unit, take this pulse wave as correcting parameter, according to this gas pressure intensity, extrapolates mean pressure and systolic pressure, diastolic pressure.
In an embodiment of the present utility model, this first pulse wave is to obtain during non-linear blood pressure lowering after this gas source is first pressurizeed.
In an embodiment of the present utility model, this pulse wave sensor also obtains the second pulse wave, and this second pulse wave is to take this mean pressure to obtain when reference value is controlled the pressurization of this gas source, and is gathered by this collecting unit.
In an embodiment of the present utility model, measuring device also comprises control unit, connect this gas source and this collecting unit, this control unit control this gas source and first pressurize after non-linear blood pressure lowering, and notify this collecting unit to gather this first pulse wave from this pulse wave sensor.
In an embodiment of the present utility model, this control unit is controlled this gas source with the mean pressure of this reckoning, and notifies this collecting unit to gather the second pulse wave from this pulse wave sensor, and wherein this second pulse wave is exported data as pulse wave.
In an embodiment of the present utility model, this gas source comprises air pump and controls the control valve of the output of this air pump.
In an embodiment of the present utility model, this control valve is electromagnetic valve.
In an embodiment of the present utility model, this collecting unit also carries out amplitude rectification by the periodic law of pulse wave.
In an embodiment of the present utility model, this pulse wave sensor comprises piezoelectric transducer, piezoresistive pressure sensor or array pressure transducer.
This utility model is owing to adopting above technical scheme, make it compared with prior art, owing to directly measuring the detection mode of pulse wave pressure data from radial artery, thereby improve key point---the accuracy of pulse wave amplitude of vibration measuring method, and made blood pressure measurement on this basis more accurate.
Accompanying drawing explanation
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated, wherein:
Fig. 1 illustrates the structure chart of the measurement pulse wave of this utility model one embodiment and the device of blood pressure.
Fig. 2 illustrates the circuit diagram of the measurement pulse wave of this utility model one embodiment and the device of blood pressure.
Fig. 3 illustrates the device control flow chart of this utility model one embodiment.
Fig. 4 illustrates the device control flow chart of another embodiment of this utility model.
Fig. 5 illustrates the pulse wave obtaining according to this utility model one embodiment.
The specific embodiment
Fig. 1 illustrates the structure chart of the measurement pulse wave of this utility model one embodiment and the device of blood pressure.Shown in Fig. 1, the measurement pulse wave of the present embodiment and the device of blood pressure comprise wrist strap 10, air bag 11, pulse wave sensor 12, pressure transducer 13, air pump 14 and electromagnetic valve 15.Wrist strap 10 is in order to coated human body wrist, and coated mode is for example around mode.Air bag 11 is arranged in wrist strap, can in the mode of inflation and venting, be pressurizeed and blood pressure lowering respectively.Like this, pressure can be applied on human body wrist by wrist strap 10.The gas of air bag 11 comes from the gas source being comprised of air pump 14 and electromagnetic valve 15.Gas source can provide the controlled gas of pressure to air bag 11, to produce the effect of pressurization and blood pressure lowering.Electromagnetic valve 15 can be arranged in the transfer conduit 16 between air pump 14 and air bag 11, to control the pressure of gas.Although the present embodiment is to take electromagnetic valve 15 as example explanation, is understandable that, this utility model can also adopt can be by the control valve of electronically controlled other type.
In embodiment of the present utility model, pulse wave sensor 12 can comprise piezoelectric transducer, piezoresistive pressure sensor or array pressure transducer.These sensors are all to extract pulse wave by obtaining the mode of pulse vibration pressure.
On the basis of above-mentioned image data, the periodic samples data by pulse wave are as correcting parameter, and the real-time pressure based on gas can directly be extrapolated mean pressure and systolic pressure, diastolic pressure, have well avoided near the erroneous judgement of catastrophe point mean pressure.Thus, can obtain blood pressure measurement more accurately.
In addition, the human blood-pressure evidence of Ramsey, Yelderman and Ream, when wrist strap pressure equals mean arterial pressure, it is maximum that wave amplitude reaches.According to this result, after obtaining mean pressure, the device of the present embodiment can be take measured mean pressure as reference value, and Self Adaptive Control regulates wrist strap pressure, then measures pulse wave.Such clear superiority is that making the real-time pulse wave data that gather for different gaugers is optimum efficiency, is convenient to carry out accurately the extraction of pulse wave characteristic information, the basic data of analyzing as cardio-vascular parameters.
Device of the present utility model can adopt integral structure Integrated design, only by the mode of measuring on wrist, can complete the detection of blood pressure and pulse wave, convenient to use.
The further details of device is described below in conjunction with Fig. 2.Fig. 2 illustrates the circuit diagram of the measurement pulse wave of this utility model one embodiment and the device of blood pressure.Shown in Fig. 2, circuit can comprise control unit 20, collecting unit 22 and computing unit 24, and they are used for the required function of actuating unit, for example control of measuring process, the acquisition and processing of data.These functional units can be implemented in hardware circuits such as special IC, PLD (PLD), processor, controller, microcontroller, microprocessor.When implementing, these functional units both a plurality of hardware circuits of available separation are implemented, and also can be integrated in a hardware circuit and implement.
Control unit 20 connects collecting unit 22, computing unit 24, air pump 14, electromagnetic valve 15.Control unit 20 can control survey process in the running of all parts.Collecting unit 22 connects pulse wave sensor 12 and pressure transducer 13, and the pulse that it can gather when needed from pulse wave sensor 12 involves the gas pressure intensity from pressure transducer 13.Collecting unit 22 can also carry out some preliminary treatments to gathered data, and for example collecting unit 22 carries out amplitude rectification by the periodic law of pulse wave.Computing unit 24 connects collecting unit 22, and computing unit 24 is in order to calculate according to the data that gather.For example, computing unit 24 can calculate mean pressure and systolic pressure, diastolic pressure.
Fig. 3 illustrates the device control flow chart of this utility model one embodiment.The control flow of the present embodiment is described below in conjunction with Fig. 1-3.
When measurement pulse involves blood pressure, first with wrist strap 10 coated human body wrist, then starting drive.In step 31, the air bag 11 in wrist strap 10 is pressurizeed.Pressurization process be, by control unit 20, open air pump 14 and electromagnetic valve 15, input gas to air bag 11.In step 32, after pressurization, the air bag 11 in wrist strap 10 is carried out to non-linear blood pressure lowering.The process of blood pressure lowering is to control electromagnetic valve 15 to regulate the gas pressure intensity in air bag 11 by control unit 20.
In step 33, carry out pulse wave measurement for the first time.Specifically, by pulse wave sensor 12, in the direct mode from the real-time pulse vibration pressure of radial artery collection, obtain the first pulse wave.Fig. 5 illustrates the pulse wave obtaining according to this utility model one embodiment.
In step 34, the gas pressure intensity detecting in wrist strap by pressure transducer 13.The measurement of gas pressure intensity can need to continue according to the measurement of blood pressure in the process of pressurization and blood pressure lowering.
In step 35, gather the first above-mentioned pulse and involve above-mentioned gas pressure intensity.Control unit 20 can be in the process of pressurization and non-linear blood pressure lowering, and notice collecting unit 22 carries out required data acquisition, to obtain the first pulse, involves gas pressure intensity.The data that collecting unit 22 gathers are given and are sent to computing unit 24.
In step 36, take pulse wave as correcting parameter, according to gas pressure intensity, extrapolate mean pressure and systolic pressure, diastolic pressure.This step can be in the interior execution of computing unit 24.Because the periodic samples data of pulse wave have participated in the calculating of blood pressure, can avoid well near the erroneous judgement of catastrophe point mean pressure.
According to embodiment of the present utility model, can also utilize calculated mean pressure to be optimized the collection of pulse wave.Fig. 4 illustrates the device control flow chart of another embodiment of this utility model.Shown in Fig. 4, after the step 36 of Fig. 3, continue execution step 41, the mean pressure of being calculated of take is pressurizeed to this wrist strap as reference value.Specifically, control unit 20 can be that reference value is controlled air pump 14 and electromagnetic valve 15 pressurizes according to the mean pressure of calculating.In step 42, pulse wave sensor 12 carries out pulse wave measurement for the second time.Control unit 20 can gather the second pulse wave from pulse wave sensor 12 by notice collecting unit 22.Because the second pulse wave is to obtain in the situation that self adaptation regulates wrist strap pressure, this makes the real-time pulse wave data that gather for different gaugers is optimum efficiency.Therefore can be based on the second pulse wave output pulse wave output data.
Preferably, in step 43, can carry out the extraction of optional pulse wave characteristic information, the basic data of analyzing as cardio-vascular parameters.
Compare existing device, the advantage of embodiment of the present utility model is, adopts the detection mode of directly measuring pulse wave pressure data from radial artery, thereby has improved key point---the accuracy of pulse wave amplitude of vibration measuring method.Secondly, adopt self adaptation to regulate and control wrist strap pressure, guarantee to gather pulse wave characteristic point information optimization, be convenient to further cardio-vascular parameters analysis.
Although this utility model is described with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is only for this utility model is described, in the situation that not departing from this utility model spirit, also can make variation or the replacement of various equivalences, therefore, as long as the variation of above-described embodiment, modification all will be dropped in the application's the scope of claims within the scope of connotation of the present utility model.
Claims (9)
1. measure a device for pulse wave and blood pressure, it is characterized in that comprising:
Wrist strap in order to coated human body wrist;
Pulse wave sensor, is arranged on this wrist strap, and this pulse wave sensor from the mode of the real-time pulse vibration pressure of radial artery collection, obtains the first pulse wave by directly;
Can be pressurized and the air bag of blood pressure lowering, be arranged in this wrist strap;
Gas source, provides the controlled gas of pressure to this air bag;
Pressure transducer, is arranged in the transfer conduit of this gas source and this air bag, in order to detect the gas pressure intensity in wrist strap;
Collecting unit, gathers this first pulse and involves this gas pressure intensity; And
Computing unit, connects this collecting unit, take this pulse wave as correcting parameter, according to this gas pressure intensity, extrapolates mean pressure and systolic pressure, diastolic pressure.
2. the device of measurement pulse wave as claimed in claim 1 and blood pressure, is characterized in that, this first pulse wave is to obtain during non-linear blood pressure lowering after this gas source is first pressurizeed.
3. the device of measurement pulse wave as claimed in claim 1 and blood pressure, is characterized in that, this pulse wave sensor also obtains the second pulse wave, and this second pulse wave is to take this mean pressure to obtain when reference value is controlled the pressurization of this gas source, and is gathered by this collecting unit.
4. the device of measurement pulse wave as claimed in claim 1 and blood pressure, it is characterized in that, also comprise control unit, connect this gas source and this collecting unit, this control unit control this gas source and first pressurize after non-linear blood pressure lowering, and notify this collecting unit to gather this first pulse wave from this pulse wave sensor.
5. the device of measurement pulse wave as claimed in claim 4 and blood pressure, it is characterized in that, this control unit is controlled this gas source with the mean pressure of this reckoning, and notifies this collecting unit to gather the second pulse wave from this pulse wave sensor, and wherein this second pulse wave is exported data as pulse wave.
6. the device of measurement pulse wave as claimed in claim 1 and blood pressure, is characterized in that, this gas source comprises air pump and controls the control valve of the output of this air pump.
7. the device of measurement pulse wave as claimed in claim 4 and blood pressure, is characterized in that, this control valve is electromagnetic valve.
8. the device of measurement pulse wave as claimed in claim 1 and blood pressure, is characterized in that, this collecting unit also carries out amplitude rectification by the periodic law of pulse wave.
9. the device of measurement pulse wave as claimed in claim 1 and blood pressure, is characterized in that, this pulse wave sensor comprises piezoelectric transducer, piezoresistive pressure sensor or array pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422604.6U CN203524655U (en) | 2013-07-16 | 2013-07-16 | Apparatus for measuring pulse wave and blood pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422604.6U CN203524655U (en) | 2013-07-16 | 2013-07-16 | Apparatus for measuring pulse wave and blood pressure |
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| CN203524655U true CN203524655U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320422604.6U Expired - Lifetime CN203524655U (en) | 2013-07-16 | 2013-07-16 | Apparatus for measuring pulse wave and blood pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349546A (en) * | 2013-07-16 | 2013-10-16 | 吕品 | Device and method for measuring pulse waves and blood pressures |
| CN106137166A (en) * | 2016-06-29 | 2016-11-23 | 联想(北京)有限公司 | A kind of rhythm of the heart detection device |
| CN109008094A (en) * | 2018-07-03 | 2018-12-18 | 京东方科技集团股份有限公司 | Wrist strap and its elasticity adjusting method, watch and its elasticity adjusting method |
| CN112842293A (en) * | 2021-01-29 | 2021-05-28 | 清华大学深圳国际研究生院 | Wearable pulse real-time detection device |
-
2013
- 2013-07-16 CN CN201320422604.6U patent/CN203524655U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349546A (en) * | 2013-07-16 | 2013-10-16 | 吕品 | Device and method for measuring pulse waves and blood pressures |
| CN106137166A (en) * | 2016-06-29 | 2016-11-23 | 联想(北京)有限公司 | A kind of rhythm of the heart detection device |
| CN109008094A (en) * | 2018-07-03 | 2018-12-18 | 京东方科技集团股份有限公司 | Wrist strap and its elasticity adjusting method, watch and its elasticity adjusting method |
| CN112842293A (en) * | 2021-01-29 | 2021-05-28 | 清华大学深圳国际研究生院 | Wearable pulse real-time detection device |
| CN112842293B (en) * | 2021-01-29 | 2022-11-08 | 清华大学深圳国际研究生院 | Wearable pulse real-time detection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |