CN102210585A - Medical monitoring method and device for measuring blood flow signal of body surface artery - Google Patents
Medical monitoring method and device for measuring blood flow signal of body surface artery Download PDFInfo
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- CN102210585A CN102210585A CN2010101395240A CN201010139524A CN102210585A CN 102210585 A CN102210585 A CN 102210585A CN 2010101395240 A CN2010101395240 A CN 2010101395240A CN 201010139524 A CN201010139524 A CN 201010139524A CN 102210585 A CN102210585 A CN 102210585A
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Abstract
The invention relates to a medical monitoring method and device for measuring blood flow signal of body surface artery. The method realizes monitoring on the blood flow velocity, resistance and flux artery blood flow signal of the body surface artery through accurate contact between a sensor and the body surface artery by use of a medical monitoring device and the pulse optical volume pulse wave measuring technology. The device is mainly composed of a sensor 1, leads 8, a pulse volume wave recording and analyzing system 9 and a display screen 10, wherein the sensor 1 is located before the pulse volume wave recording and analyzing system 9; the display screen 10 is located after the pulse volume wave recording and analyzing system 9; the pulse volume wave recording and analyzing system 9 is connected with the sensor 1 and the display screen 10 through the leads 8 respectively; the surface of the sensor 1 is provided with an auxiliary device 7 for fixing the sensor; and an inflatable air sac 5 is arranged behind the sensor 1. By connecting the device provided by the invention with the existing common monitor, the blood flow velocity, resistance and flux of the body surface artery can be conveniently monitored in real time.
Description
Technical field: the invention belongs to medical monitoring method and medical equipment field thereof, specifically is a kind of medical method and device of measuring body surface artery blood flow signal.More specifically say so and utilize pulse oxygen saturation light volume ripple (PPG) determination techniques, contact comparatively accurately with the survey tremulous pulse and to the quantitative analysis of obtaining PPG by reflective pulse oximeter sensor, realize the medical monitoring method and the device of the artery blood flow signal monitorings such as blood flow rate, resistance and flow of, medium-sized artery big measured body surface.
Background technology: the artery blood flow signal comprises blood flow rate, flow and resistance etc., these parameters of root a tree name can assess body blood volume, cardiac output and whole body and (or) local peripheral vascular resistance, realize anesthesia surgery patient and the comprehensive hemodynamic monitoring of critical patient.The method that obtains at present noinvasive artery blood flow signal clinically is the ultrasonic multispectral method of reining in, need to use expensive medical ultrasonic equipment with Doppler's function, and user to possess carry out ultrasonic image learn the relevant professional knowledge checked and through specialty the use training.Accuracy and the repeatability of using the multispectral method of reining in to measure the artery blood flow signal all have much relations with ultrasonic probe acoustic beam of launching and the angle of surveying the blood flow bundle, can not remain ultrasonic probe and be in same position in repeated measurement, therefore the blood flow signal that obtains may have certain repeated measure error.Therefore, using this technology in the operation, to estimate patient's the feasibility of circulatory function relatively poor, only limits to clinical research at present.
Detecting sphygmus and blood oxygen saturation (SpO
2) be the fundamental surveillance project of assessment anesthesia patient and critical patient's oxygenation status, have noinvasive, continuous, easy and simple to handle and cheap characteristics, now be widely used in anesthesia surgery and critical patient.The SpO of present clinical use
2Monitoring technology mainly adopts transmission sensors, be about to the luminous component and the corresponding placement of probe portion of pick off, the end that the position of therefore being monitored is limited to human body is the position slightly, as finger tip, ear-lobe etc., the pulse blood oxygen saturation of the measurement result that obtained reflection arterial blood, and its absorbance of root a tree name changes and pulse frequency two parts that the light volume pulsation wave traced is calculated.Utilize the algorithm of PPG assessment cardiovascular flow parameter though bibliographical information has been arranged, but still what gather is the microcirculatory PPG signal of traditional tip.Yet finger waits the microcirculatory vascular at human body tip position to contain a large amount of a-adrenoceptors, but the PPG waveform that the variation remarkable influence of sympathetic excitability and body temperature is obtained, and then influence the accuracy of the blood flow parameter of calculating thus.The accuracy that the literature author also points out the cardiovascular flow parameter surveyed with this kind monitoring module with have the wound method to compare to have certain gap, the fields such as clinical rehabilitation and community health that only are suitable for are as rough assessment.Though existing commercial reflective pulse oximetry sensor listing, it is usually used in placing blood to measure SpO for abundant position such as forehead
2, but be not suitable for accurate measurement to a certain tremulous pulse PPG waveform.
The objective of the invention is in order to overcome above-mentioned prior art the deficiency on the body surface artery blood flow signal monitoring, so that a kind of method and medical apparatus of monitoring artery blood flow information by accurate collection body surface tremulous pulse PPG signal to be provided, use device of the present invention can collect the arterial vascular PPG signal of body surface by the exposure level of regulating the pick off and the tremulous pulse of surveying, its entrained blood flow information the tradition end slightly the PPG signal at position more can accurately reflect the hemodynamic state of body, and device of the present invention be connected with present common monitor just can be easily through the blood flow rate of skin to survey body surface tremulous pulse, flow and resistance carry out continuous monitoring.
The objective of the invention is to realize by following technical proposals
Summary of the invention: the present invention is a medical monitoring method of measuring body surface artery blood flow signal, be by medical monitoring device, utilize existing pulse oxygen saturation detection technique, pick off is placed the body surface arteriopalmus place of required measurement, by regulating the exposure level of pick off and tremulous pulse, realization is to the PPG signal detection of body surface tremulous pulse, and by the further quantitative analysis to obtaining PPG, final realization is to the measurement of body surface artery blood flow signal.
The medical monitoring device of measurement body surface artery blood flow signal of the present invention, mainly constitute with analytical system 9, display screen 10 by pick off 1, lead 8, pulse volume ripple record, pick off 1 is positioned at before pulse volume ripple record and the analytical system 9, display screen 10 is positioned at after wave analysis of pulse volume and the recording system 9, between pick off 1 and pulse volume ripple record and the analytical system 9, and pulse volume ripple writes down with 10 of analytical system 9 and display screens and is connected by lead 8.
In the such scheme, be provided with an auxiliary device 7 at pick off 1 back side, described auxiliary device 7 can be that fixing band, adhesive sticker are applied ointment or plaster, clip or the like, and its effect is a fixation of sensor 1, makes pick off 1 be fixed in the sites measured of wanting.
In the such scheme, when auxiliary device 7 is fixing band, fixing band be provided with a control valve 6, it mainly is the length of regulating fixing band, to be fit to the measurement of Different Individual and different parts.And the forward part in fixing band other end front and rear section have mutual stickup effect.
In the such scheme, the rear of auxiliary device 7 inside, pick off is mounted with the air bag that can ventilate 5, and its effect is by to air bag 5 inflations, and pick off 1 is closely contacted with survey body surface tremulous pulse.
In the such scheme, be provided with the conduit 2 that is communicated with air bag 5 in auxiliary device 7 outsides, its conduit 2 both can have been inserted in the fixing band 7, also can directly connect with fixing band 7 outside.
In the such scheme, be provided with a ballonet 3 at the end of conduit 2, this ballonet 3 also can be called the outer control part of air bag 5, and its effect is the pressure size in the indication air bag.
In the such scheme, ballonet 3 exits are provided with one-way cock 4, and its effect is to stop the gas in the inflation rear gasbag 5 to flow out.In addition, a Pressure gauge can be set, be used for accurately writing down the pressure in the air bag 1 at the ballonet place.
In the such scheme, pulse volume ripple record and analytical system 9 can be sent to analysis result on the display screen 10 by lead 8 by the quantitative analysis of PPG signal that pick off 1 is collected; Pulse volume ripple record also can link to each other with present widely used monitor with analytical system 9, thereby analysis result directly is presented on the monitor.
The present invention is the inventor sums up the science practicality of coming out in long-term practice a technical scheme, technical scheme of the present invention is that pick off is placed the arteriopalmus place that will measure, as the brachial dance place of wrist radial artery pulse place, upper arm, the femoral pulse place at groin place, use above-mentioned auxiliary device or utilization bonding method that pulse oximetry sensor is fixed to the sites measured of wanting, the mode of utilization airbag aeration makes pick off closely contact with survey body surface tremulous pulse.Obtain the PPG of the body surface tremulous pulse of surveying according to pulse light volume ripple determination techniques.The PPG signal that obtains is transmitted to pulse volume ripple record and analytical system by lead, by amplify, filter circuit is handled and to the quantitative analysis of pulse light volume ripple, draw corresponding artery blood flow information parameter numerical value.
The present invention utilizes existing pulse volume ripple determination techniques, the reflective pulse oximeter sensor that uses is affixed on any arteriopalmus of body surface place, and utilization is to the method for air bag pressurization, contact with the tight of survey tremulous pulse by pick off, realize collection body surface trunk pulse volume ripple.Settle Pressure gauge can measure the situation that contacts that the pressure of being inflated is used for accurate determine sensor and tested tremulous pulse at ballonet collar extension place.And this device can not produce any damage to the measuring point in using.
The invention has the beneficial effects as follows on the basis of existing widely used clinically pulse blood oxygen saturation monitoring system, use reflective pulse oximeter sensor and fixture and PPG real-time analyzer, gather body surface tremulous pulse PPG ripple, by the PPG wave analysis that obtains is handled, thereby obtain the blood flow signals such as artery blood flow speed, resistance and flow of continuous non-invasive, easy to use, low price, can be used for estimating important circulatory function states such as blood volume, Peripheral resistance and cardiac output, have very strong clinical meaning and application prospect.
Further specify the present invention below by embodiment, the present invention is not limited only to described embodiment.
Description of drawings:
Fig. 1 is the overall structure sketch map of the embodiment of the invention one.
Fig. 2 is the overall structure sketch map of the embodiment of the invention two.
Shown in Fig. 1 embodiment one: the medical monitoring device of measurement body surface artery blood flow signal of the present invention, mainly constitute with analytical system 9, display screen 10 by pick off 1, lead 8, pulse volume ripple record, pick off 1 is positioned at before pulse volume ripple record and the analytical system 9, display screen 10 is positioned at after wave analysis of pulse volume and the recording system 9, between pick off 1 and pulse volume ripple record and the analytical system 9, and pulse volume ripple writes down with 10 of analytical system 9 and display screens and is connected by lead 8.Be provided with the auxiliary device 7 of a pick off 1 at the back side of pick off 1, this routine auxiliary device 7 is fixing bands.The rear of auxiliary device 7 inside, pick off is mounted with the air bag that can ventilate 5, and is connected to outside the fixing band by conduit 2, and the end of conduit 2 is provided with a ballonet 3, and an one-way cock has been settled in the exit of ballonet 3.
During use, with the pick off luminous component with accept part over against the body surface arteriopalmus place that will measure, as wrist radial artery pulse place, the brachial dance place of upper arm, the femoral pulse place at groin place, fix auxiliary device, one-way cock by the ballonet place is to airbag aeration then, stop inflation when the pulse oxygen saturation on display screen, occurring, by the filtering of the wave analysis of pulse volume and recording system to obtaining PPG ripple, after the analyzing and processing, can on display screen, directly provide the blood flow rate of the body surface tremulous pulse of surveying, the numerical value of resistance and flow, and can judge inflation situation in the air bag according to the pressure in the ballonet, can connect a Pressure gauge in the ballonet exit, be used for accurately measuring the pressure condition in the air bag.
Shown in Fig. 2 embodiment two: the signal that the medical monitoring device of figure one described measurement artery blood flow signal is used to measure wrist radial artery blood flow.
Following little figure is the rip cutting figure of pick off 1 in fixing band, and pick off 1 is over against 11 places, survey position, and the back side of pick off 1 is mounted with an inflatable air bag 5, and air bag 5 is positioned at the rear of auxiliary device 7, pick off 1.
During use,, pick off is closely contacted with the survey position by to airbag aeration.By the wave analysis of pulse volume and recording system to the filtering of obtaining radial artery PPG ripple, analyzing and processing after, the numerical value that the wave analysis of pulse volume and recording system is calculated by serial ports transfers to display screen then, can directly read the numerical value of blood flow rate, resistance and the flow of radial artery from the display screen.
The specific embodiment: see description of drawings
Claims (9)
1. method of measuring body surface artery blood flow signal, it is characterized in that it being by medical monitoring device, on pulse oxygen saturation determination techniques basis, utilize the variation of pulse light volume ripple, realize the arterial vascular blood flow rate of body surface, flow and vascular resistance are measured in real time.
2. medical monitoring device of measuring body surface artery blood flow signal, it is characterized in that this device mainly is made of pick off 1, lead 8, the ripple collection of pulse light volume and analytical system 9, display screen 10, pick off 1 is positioned at before pulse volume ripple record and the analytical system 9, display screen 10 is positioned at after wave analysis of pulse volume and the recording system 9, between pick off 1 and pulse volume ripple record and the analytical system 9, and pulse volume ripple writes down with 10 of analytical system 9 and display screens and is connected by lead 8.
3. the medical monitoring device of measurement body surface artery blood flow signal according to claim 2 is characterized in that the back side of described pick off 1 is provided with the auxiliary device 7 of a fixation of sensor 1.
4. the medical monitoring device of measurement body surface artery blood flow signal according to claim 3, it is characterized in that when described auxiliary device 7 is fixing band, one end of fixing band is provided with a control valve 6, and the forward part in other end front and rear section have mutual stickup effect.
5. the medical monitoring device of measurement body surface artery blood flow signal according to claim 3 is characterized in that the rear of described auxiliary device 7 inside, pick off is mounted with the air bag that can ventilate 5
6. the medical monitoring device of measurement body surface artery blood flow signal according to claim 6 is characterized in that conduit 2 ends that described air bag 5 is connected are provided with a ballonet 3.
7. the medical monitoring device of measurement body surface artery blood flow signal according to claim 7 is characterized in that described ballonet 3 exits are provided with an one-way cock 4.
8. the medical monitoring device of measurement body surface artery blood flow signal according to claim 7 is characterized in that described ballonet 3 exits can be provided with a Pressure gauge.
9. the medical monitoring device of measurement body surface artery blood flow signal according to claim 7 is characterized in that described conduit 2 can place within the auxiliary device 7, also can be directly connected in outside the fixing band 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101395240A CN102210585A (en) | 2010-04-06 | 2010-04-06 | Medical monitoring method and device for measuring blood flow signal of body surface artery |
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| CN2010101395240A CN102210585A (en) | 2010-04-06 | 2010-04-06 | Medical monitoring method and device for measuring blood flow signal of body surface artery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109310352A (en) * | 2016-07-01 | 2019-02-05 | 索尼公司 | Information processing unit, information processing method and program |
| TWI722701B (en) * | 2019-12-06 | 2021-03-21 | 研能科技股份有限公司 | Blood pressure measuring module |
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| CN1320411A (en) * | 2000-04-21 | 2001-11-07 | 陆渭明 | Non-wound method and device for measuring blood pressure |
| CN101484069A (en) * | 2006-05-24 | 2009-07-15 | 泰瑞连激光技术有限公司 | Optical vital sign detection method and measurement device |
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| CN1320411A (en) * | 2000-04-21 | 2001-11-07 | 陆渭明 | Non-wound method and device for measuring blood pressure |
| CN101484069A (en) * | 2006-05-24 | 2009-07-15 | 泰瑞连激光技术有限公司 | Optical vital sign detection method and measurement device |
Non-Patent Citations (2)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109310352A (en) * | 2016-07-01 | 2019-02-05 | 索尼公司 | Information processing unit, information processing method and program |
| CN109310352B (en) * | 2016-07-01 | 2022-05-31 | 索尼公司 | Information processing apparatus, information processing method, and program |
| TWI722701B (en) * | 2019-12-06 | 2021-03-21 | 研能科技股份有限公司 | Blood pressure measuring module |
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Application publication date: 20111012 |