CN102949186B - Electric sphygmomanometer - Google Patents
Electric sphygmomanometer Download PDFInfo
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- CN102949186B CN102949186B CN201210253595.2A CN201210253595A CN102949186B CN 102949186 B CN102949186 B CN 102949186B CN 201210253595 A CN201210253595 A CN 201210253595A CN 102949186 B CN102949186 B CN 102949186B
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Abstract
The present invention relates to electric sphygmomanometer. Existing electric sphygmomanometer there is problems in that due to after starting pressurization in order to identify pulse interval, it has to pressurize even if the slower speed of 7 bat pulses also can be obtained with the people that pulse is slow in advance, so the measurement time can not fully be shortened. The bandage of the part being placed in organism is being pressurizeed, based in the electric sphygmomanometer calculating blood pressure with the pulse signal that adds of bandage laminated in pressurization, detecting the position of measuring point (having laid the forethiga of bandage) before bandage is pressurizeed, the Pulse Rate (pulse interval) based on the measured obtained when the appropriate location whether measuring point is in blood pressure measurement is detected sets pressing speed.
Description
Technical field
The present invention relates to the electric sphygmomanometer of metering system during the pressurization carrying out blood pressure measurement according to pulse detected when the bandage being placed in measured position is pressurizeed.
Background technology
Now, electronic blood pressure is in respect of various metering systems. One of them has this metering system of oscillography (oscillometric) mode.
The sphygomanometer of oscillography mode be according to constant speed to being wound on forethiga, the appearance of pulse folded with bandage ballast when pressurizeing or reduce pressure of the bandage of leg, peak value, disappearance relation, calculate the sphygomanometer of pressure value.
During the decompression measured when reducing pressure with constant speed in metering system, till bandage is forced into the pressure of pulse temporary extinction, when decompression, detection pulse calculates pressure value afterwards.
On the other hand, during the pressurization measured when pressurizeing with constant speed in metering system, based on pulse detected in the process that bandage is constantly pressurizeed, calculate pressure value.
In order to correctly calculate pressure value, it is necessary to minimum 7 clap the pulse information of left and right, generally, it is contemplated that individual difference, the speed can obtain the pulse about 7 bats changes to control pressure.
During decompression, metering system is in initial pressure process, detect the pulse information of object in advance roughly, and the pulse interval time according to tester, make " a little slower decompression of people that pulse is slow ", " people's decompression as soon as possible that pulse is fast " such that it is able to make the average measurement time shorten.
On the other hand, during pressurization, metering system pressurizes from initially starting as measuring state. That is, during pressurization, the state of the prior information of the pulse of metering system never object enters into pressurization measurement. It is thus impossible to the pressurization that the individual difference at enough pulse intervals carried out with tester is corresponding, it is necessary to pressurize even also being able to obtain the slower speed of 7 bat pulses with the tester that pulse is slow.
Then, propose a kind of can pressurization time metering system sphygomanometer in, from starting to pressurize, judge the pulse interval of tester in the starting stage of pressurization, and midway switches to optimal pressing speed such that it is able to the technology (patent documentation 1) that optimal pressing speed measures.
Patent documentation 1: Japanese Unexamined Patent Publication 9-299340 publication
In the sphygomanometer described in patent documentation 1, in order to identify pulse interval, need minimum 3 pulse informations clapped, due to for the identification at pulse interval, determine that the approximately half of period in pulse is clapped in required 7 being equivalent to actually blood pressure, have to the slower speed pressurization also being able to obtain 7 bat pulses in advance with the people that pulse is slow, so there is the problem that can not fully shorten the measurement time.
Summary of the invention
It is an object of the invention to solve above-mentioned problem, it is provided that one can start just with most suitable pressing speed, bandage to be pressurizeed from pressurization, the electric sphygmomanometer measured.
In order to solve above-mentioned problem, measuring formula sphygomanometer during the pressurization of the present invention is that the bandage to the part being placed in organism pressurizes, based on the electric sphygmomanometer calculating blood pressure with the pulse signal that adds of bandage laminated in pressurization, it is characterized in that, having pressing speed setup unit, this pressing speed setup unit bandage sets the pressing speed of bandage based on the Biont information of the measured detected before bandage is pressurized.
And, measure formula sphygomanometer during the pressurization of the present invention and there is the Biont information based on the measured, the position detection unit that the position of the measuring point having laid bandage is detected, pressing speed setup unit sets the pressing speed of bandage based on the Biont information detected by the period of the position in position detection unit detection measuring point.
Additionally, measure formula sphygomanometer during the pressurization of the present invention and there is the blood pressure measurement control unit of the control carrying out blood pressure measurement, when position detection unit is judged to that measuring point moves to appropriate location, bandage is pressurizeed by blood pressure measurement control unit with the pressing speed set by pressing speed setup unit, starts blood pressure measurement.
Additionally, the position detection unit measuring formula sphygomanometer during the pressurization of the present invention possesses microwave generator and microwave receiver, by microwave generator to the measured irradiating microwaves, the echo that action because of the organism of the measured is created Doppler frequency shift by microwave receiver is detected, and detects the position of measuring point based on this echo.
It addition, the position detection unit measuring formula sphygomanometer during the pressurization of the present invention is also equipped with: the 1st moves detection unit, and its 1st mobile status that measuring point having laid bandage is above moved to chest detects; Moving detection unit with the 2nd, its 2nd mobile status that measuring point having laid bandage is moved to the appropriate location before chest detects; After moving detection by the 1st unit is judged to that the 1st mobile status terminates, move detection unit by the 2nd and detect the 2nd mobile status.
It addition, the pressing speed setup unit measuring formula sphygomanometer during the pressurization of the present invention uses when the 2nd mobile status is detected the pulse detected by position detection unit to set the pressing speed of bandage.
Being characterised by additionally, measure formula sphygomanometer during the pressurization of the present invention, finishing the detection of the 2nd mobile status according to being moved detection unit by the 2nd, position detection unit is judged to complete the measuring point movement to appropriate location.
Electric sphygmomanometer according to the present invention, by starting just to measure with best pressing speed pressurization from pressurization, it is possible to shorten the measurement time.
Accompanying drawing explanation
Fig. 1 indicates that the figure of the outward appearance of the embodiment of the electric sphygmomanometer of the present invention.
Fig. 2 indicates that the functional block diagram of the composition of the embodiment of the electric sphygmomanometer of the present invention.
Fig. 3 is the figure that the 1st mobile status and the 2nd mobile status are described.
Fig. 4 is the oscillogram of the action of the embodiment of the electric sphygmomanometer that the present invention is described.
Fig. 5 indicates that the figure of the setting example of the pressing speed of the embodiment of the electric sphygmomanometer of the present invention.
Fig. 6 indicates that the flow chart of the action of the embodiment of the electric sphygmomanometer of the present invention.
Wherein, the explanation of accompanying drawing labelling is as follows:
1 ... electric sphygmomanometer, 2 ... appropriate location detection unit, 21 ... microwave Doppler sensor, 211 ... microwave emitter, 212 ... microwave receiver, 213 ... microwave Doppler demodulator, 22 ... converter, 23 ... signal saturation detection portion, 24, 26 ... the 2nd moves detection unit, 25 ... the 1st moves detection unit, 242 ... FFT process portion, 243 ... pulse detection portion, 244 ... Pulse Rate calculating part, 245 ... blood pressure measurement detection unit, 246 ... respiratory wave test section, 3 ... measuring unit of blood pressure, 31 ... bandage, 32 ... pressure transducer, 33 ... force (forcing) pump, 34 ... pressurized control portion, 35 ... air bleeding valve, 36 ... exhaust control portion, 37 ... blood pressure measurement control portion, 372 ... blood pressure information memorizer, 38 ... sphygomanometer measurement portion, 4 ... notification unit, 41 ... display part, 411 ... maximal blood pressure display part, 412 ... minimal blood pressure display part, 413 ... Pulse Rate display part, 414 ... Respiration Rate display part, 415 ... measuring condition display part, 415a ... pulse condition flag display part, 415b ... breathe condition display part, 416 ... moment display part, 42 ... notification unit, 6 ... timing unit, 8 ... the measured, 8a ... left forearm, 8b ... before chest, 81 ... heart, Me ... microwave, Mt ... echo, Eme ... send microwave signal, Emt ... receive microwave signal, Eo ... the signal of telecommunication, Do ... digital signal, Ds ... the 1st mobile status end signal, Dr ... the amplitude range of regulation, Dx ... the 1st saturation threshold, Dm ... the 2nd saturation threshold, Df1, Df2 ... the frequency range of regulation, Bf ... first-harmonic, Lf ... the 1st Ct value, Hf ... the 2nd Ct value, Lfp ... the 3rd Ct value, Hfp ... the 4th Ct value, Ms ... appropriate location detection signal, Mk ... Pulse Rate signal, Po ... pulse data, P1, P2, P3 ... the jitter components of heart, Rc ... respiratory wave data, Rch ... maximum, Rcl ... minima, R1, R2 ... breathe the composition caused, So ... pressure signal, Kc ... pressurized control signal, Hc ... vent control signal, Kd ... pressurised driving signal, Hd ... exhaust gas drive signal, T1 ... the 1st temporal information, T2 ... the 2nd temporal information, T3 ... the 3rd temporal information.
Detailed description of the invention
The electric sphygmomanometer of the present invention sets the pressing speed of bandage according to the Biont information of the measured obtained before bandage is pressurizeed.
The position of measuring point (having laid the forethiga of bandage) was detected by electric sphygmomanometer before bandage is pressurizeed, Pulse Rate (pulse interval) according to the measured obtained when the appropriate location whether measuring point is in blood pressure measurement is detected, sets pressing speed.
If it is determined that be in appropriate location for measuring point, then bandage pressurization is carried out blood pressure measurement with set pressing speed by electric sphygmomanometer. Wherein, the appropriate location of blood pressure measurement refers to that the blood pressure measurement position of health and heart become the position of sustained height.
The electric sphygmomanometer of the present invention, by using the microwave Doppler sensor body expo microwave to the measured, and receives this echo, detects the appropriate location of measuring point in blood pressure measurement.It addition, the echo according to microwave, additionally it is possible to measure the Biont information such as the Pulse Rate of the measured, pulse interval. According to these Biont informations, calculate the pressing speed of applicable blood pressure measurement to carry out blood pressure measurement.
Electric sphygmomanometer is not known when blood pressure measurement starts, and has laid the forethiga (such as wrist) of the bandage of electric sphygmomanometer and has been in relative to health and where (puts down or lift forearm etc.). In order to make the forethiga having laid bandage move to appropriate location from this state, the signal obtained from microwave Doppler sensor is processed, detects the position of the forethiga having laid bandage.
First, the 1st moves the number of times of the saturated amplitude detecting the value that unit exceedes regulation with the signal obtained, and the mobile status of bigger forethiga is detected.
Next, 2nd mobile status detection unit is according to the distribution that the signal obtained has carried out the frequency content after Fourier transformation, whether dropped on by first-harmonic (peak value) within the scope of the frequency threshold of regulation and (whether normally detect pulse, breathing), whether the forethiga having laid bandage is in appropriate location and detects. Now, Pulse Rate is also measured according to first-harmonic.
Then, if it is determined that the forethiga for having laid bandage is in appropriate location, then the pressing speed to set according to the Pulse Rate measured when detecting 2 mobile status, bandage pressurization is carried out blood pressure measurement.
Owing to the electric sphygmomanometer of the present invention is based in the information detecting pulse obtained when whether the forethiga having laid bandage before bandage is pressurizeed is in appropriate location, set the pressing speed of bandage, carry out blood pressure measurement, it is possible to measure with the best pressing speed pressurization of applicable the measured such that it is able to shorten the measurement time.
Hereinafter, use accompanying drawing, the electric sphygmomanometer of the present invention is described in detail in detail.
Wherein, in the following description, the composition that electric sphygmomanometer is integrally forming for bandage and microwave Doppler sensor and blood pressure measurement portion illustrates, as long as but electric sphygmomanometer is placed to the bandage to the position that blood pressure measures and microwave Doppler sensor is integrally constituted, the blood pressure measurement portion and the bandage that are equipped with blood pressure measurement control portion and notification unit etc. can be integrated, it is also possible to for independent monomer.
[embodiment 1]
Hereinafter, use Fig. 1��Fig. 6, the embodiment of the electric sphygmomanometer of the present invention is described in detail in detail. Wherein, in explanation, mainly illustrate for the situation having laid electric sphygmomanometer on left finesse.
Fig. 1 indicates that the figure of the outward appearance of the embodiment of the electric sphygmomanometer of the present invention.
Electric sphygmomanometer 1 is made up of sphygomanometer main body 11 and bandage 31. The sphygomanometer main body 11 composition needed for inside possesses blood pressure measurement. And, sphygomanometer main body 11 has the main display part 411 of explained later, secondary display part 412, notification unit 42 and operating portion 5 etc.
[composition of electric sphygmomanometer illustrates: Fig. 2]
Fig. 2 is the functional block diagram of the composition that electric sphygmomanometer is described.
In fig. 2, electric sphygmomanometer 1 has: appropriate location detection unit 2, its to blood pressure measurement position relative to whether the height of heart suitably detects; Measuring unit of blood pressure 3, it measures blood pressure; Notification unit 4, it possesses the display part 41 with visual form display measurement result and carries out the notification unit 42 notified in the sound mode such as alarm sound, voice; Operating portion 5;With the time information such as timing unit 6, its date of formation and moment.
[explanation of appropriate location detection unit 2]
First, the composition of appropriate location detection unit 2 is described.
As in figure 2 it is shown, appropriate location detection unit 2 moved by microwave Doppler sensor the 21, the 1st detection unit the 25 and the 2nd move detection unit 24 constitute.
Microwave Doppler sensor 21 can use general microwave Doppler sensor. In microwave Doppler sensor, the microwave Doppler sensor that has its output signal to be analogue signal and for the microwave Doppler sensor of digital signal, use that whichever will do. Utilize the example not carrying the converter converting analog signals into digital signal in microwave Doppler sensor 21, illustrate.
Microwave Doppler sensor 21 is made up of the microwave emitter (not shown) of the microwave such as launching about 2.5GHz, the microwave receiver (not shown) receiving the microwave irradiated and microwave Doppler demodulator (not shown).
The microwave M e launched from microwave emitter is partly into the measured 8, is reflected by heart 81 and becomes echo Mt, is again received by microwave receiver via the measured 8.
Namely microwave emitter sends microwave signal Eme to the output of microwave Doppler demodulator with the signal of telecommunication suitable for microwave M e launched. Namely microwave receiver receives microwave signal Emt to the output of microwave Doppler demodulator with the signal of telecommunication suitable for echo Mt received.
Microwave Doppler demodulator is based on sending microwave signal Eme and receiving microwave signal Emt, and the signal of telecommunication of the phase signal of 2 signals of output is as signal of telecommunication Eo.
In the echo Mt received by microwave receiver, because of the corresponding Doppler frequency shift of beating with heart, produce phase contrast relative to the microwave M e launched from microwave emitter. By based on sending microwave signal Eme and receiving microwave signal Emt, microwave Doppler demodulator the phase contrast of the microwave produced because of Doppler frequency shift being converted to signal of telecommunication Eo, it is possible to detect beating of heart.
1st moves detection unit 25 is made up of with signal saturation detection portion 23 converter 22.
Converter 22 is based on the 1st temporal information T1 from timing unit 6, and the output of microwave Doppler sensor 21 and signal of telecommunication Eo are converted to the transducer of digital signal Do.
Digital signal Do is become saturation and detects by signal saturation detection portion 23, and the 1st mobile status end signal Ds that the 1st mobile status terminates is informed in output.
2nd moves detection unit 24 by FFT(FastFourierTransform: fast Fourier transform) process portion 242, pulse detection portion 243, blood pressure measurement detection unit 245 and Pulse Rate calculating part 244 constitute.
Digital signal Do, based on the 2nd temporal information T2 from timing unit 6, is accumulated the stipulated time by FFT process portion 242, processes the output first-harmonic Bf as spectrum information by FFT.
Pulse detection portion 243 is transfused to first-harmonic Bf, exports pulse data Po. Blood pressure measurement detection unit 245 is transfused to pulse data Po, output appropriate location detection signal Ms.
Pulse Rate calculating part 244 calculates Pulse Rate based on pulse data Po, exports Pulse Rate signal Mk. Calculating by by the frequency of pulse and pulse data Po(Hz of Pulse Rate (bpm)) it is multiplied by 1/60 and calculates.
Timing unit 6 can be made up of the fundamental clock portion of the clock signal using the output assigned frequencies such as quartz crystal, the frequency dividing circuit portion that clock signal divides the fractional frequency signal generating regulation, the moment generating unit etc. that generates time information based on fractional frequency signal. Owing to these compositions are the compositions being widely known by the people in known clock circuit, so omitting detailed description.
The 1st temporal information T1, the 2nd temporal information T2, the 3rd temporal information T3 is exported from timing unit 6.1st temporal information T1 has the time information in the sampling time for determining converter 22, for instance be the signal that the pulse period is set to 10msec. 2nd temporal information T2 has the time information for obtaining accumulating the stipulated time of digital signal Do in FFT process portion, for instance be the pulse signal that the cycle is set to 10��30sec. 3rd temporal information T3 is the time information with date when having carried out blood pressure measurement, temporal information.
[composition of measuring unit of blood pressure 3 illustrates]
It follows that the composition of measuring unit of blood pressure 3 is described.
Measuring unit of blood pressure 3 is made up of bandage 31, pressure transducer 32, force (forcing) pump 33, pressurized control portion 34, air bleeding valve 35, exhaust control portion 36 and blood pressure measurement control portion 37.
Bandage 31 is to stop the strip-shaped members of blood flow for the radial artery of wrist is pressurizeed.
The pressure of bandage 31 is converted to the signal of telecommunication by pressure transducer 32, exports as pressure signal So. Force (forcing) pump 33 is the pump for bandage 31 is pressurizeed. Pressurized control portion 34 exports pressurised driving signal Kd based on the pressurized control signal Kc from blood pressure measurement control portion 37, and force (forcing) pump 33 is driven.
Air bleeding valve 35 is the valve of the pressure for discharging bandage 31 with the ratio of regulation. Exhaust control portion 36, based on the vent control signal Hc from blood pressure measurement control portion 37, exports exhaust gas drive signal Hd, controls air bleeding valve 35.
Blood pressure measurement control portion 37 controls the action of management electric sphygmomanometer 1 all sidedly. Specifically, blood pressure measurement control portion 37, based on pressure signal So and appropriate location detection signal Ms, exports blood pressure information Kj and suitable notification signal Tp. The information of time information when blood pressure information Kj is to include maximal blood pressure value, minimal blood pressure value, Pulse Rate, blood pressure measurement and appropriate location detection signal Ms etc. Suitable notification signal Tp is the signal Ms appropriate location information constituted that detected by appropriate location.
The blood pressure information memorizer 372 in blood pressure measurement control portion 37 is the memory element for storing this blood pressure information Kj.
Wherein, the composition in this blood pressure measurement control portion 37 is not particularly limited, if being made up of single chip microcomputer etc., then owing to being capable of small-sized, power reducing, thus convenient.
[composition of notification unit 4 illustrates: Fig. 1,2]
It follows that use Fig. 1 and Fig. 2 that the composition of notification unit 4 is described.
Notification unit 4 is for showing the pressure value that electric sphygmomanometer 1 is measured, and notifies whether blood pressure measurement position is in the appropriate location identical with the height of heart. Notification unit 4 is made up of display part 41 and notification unit 42. Display part 41 can be made up of main display part 411 and secondary display part 412, wherein, and the blood pressure information Kj such as time information when main display part 411 display of blood pressure measures the maximal blood pressure value of control portion 37 output, minimal blood pressure value, Pulse Rate and blood pressure measurement; Secondary display part 412 shows the grade of appropriate location. Notification unit 42 utilizes voice, vibration, notifies whether the blood pressure measurement position of electric sphygmomanometer 1 is in the appropriate location of measurement to the measured.
Secondary display part 412 utilizes the labelling corresponding with the grade of appropriate location detection signal Ms, light to notify. Such as, the following display utilizing multiple labelling can be carried out, the grade that appropriate location is even detected signal Ms is set to 3 stages, when being appropriate location, show "��" as grade 3, when from appropriate location slightly offset from time, show " �� " as grade 2, when significantly deviateing from appropriate location, show "��" as grade 1.
The grade in 3 stages such as can determine in the following way.
When the grade 3 of appropriate location is the scope that centrifugal dirty right atrium deficiency �� 1cm is dropped at the blood pressure measurement position of electric sphygmomanometer 1. From appropriate location slightly offset from grade 2 be the scope that centrifugal dirty right atrium �� more than 1cm and deficiency �� 5cm are dropped in the blood pressure measurement position of electric sphygmomanometer 1 time. When the grade 1 significantly deviateed from appropriate location is the scope that the blood pressure measurement position of electric sphygmomanometer 1 is in centrifugal dirty right atrium �� more than 5cm.
For each grade, as long as the amplitude of digital signal Do, pulse data Po being arranged the multiple threshold values corresponding with respective grade, and judge whether exceeding threshold value.
Alternatively, it is also possible to utilize the color of LED light to carry out display level. For example, it is possible to grade 3 is set to " indigo plant ", grade 2 is set to " Huang ", grade 1 is set to " red " etc. It is of course also possible to composite marking, light display.
In the example depicted in figure 1, as the example of measurement result, main display part 41 shows maximal blood pressure value to be 120mmHg, minimal blood pressure value is that 80mmHg, Pulse Rate are 60bpm and to measure the moment be AM7:30.
It addition, the example shown in Fig. 1 is to use labelling to notify the situation of appropriate location. The secondary display part 412 of Fig. 1 in position detects when signal Ms is grade 3 and shows "��" labelling.
Notification unit 42 can be made up of dynamic speaker, piezoelectric sound component etc. Alarm sound, voice etc. can be utilized to notify. Voice is such as " position of sphygomanometer is appropriate location " or " the Bu Shi appropriate location, position of sphygomanometer " etc.
So, owing to light, labelling or voice can be utilized to guide appropriate location into, so the measured correctly can take sphygomanometer to appropriate location.
Due to when blood pressure measurement, it is desirable to the posture viewing loosened, thus when electric sphygmomanometer is positioned at before chest, if it is possible to so notify this situation with voice, alarm sound, then without low first-class, it is possible to maintain the posture loosened, very convenient.
[explanation of the mobile status of forearm: Fig. 3]
It follows that use Fig. 3 to illustrate, the 1st of appropriate location detection unit 2 moves the mobile status that detection unit the 25 and the 2nd moves the forearm of detection unit 24 detection.
Fig. 3 (a) to Fig. 3 (e) lays electric sphygmomanometer 1 in the wrist of the left forearm 8a being shown schematically in the measured 8, to the figure of the mobile status of the forearm started blood pressure measurement. Fig. 3 (f) indicates that the figure of the from the beginning state of overhead view the measured, is that the figure before the chest of the measured is described.
Fig. 3 (a) lays electric sphygmomanometer 1 on left finesse, starts state during blood pressure measurement with the switch of right-hand operated operating portion 5.
Fig. 3 (b) and Fig. 3 (c) indicates that the figure of the 1st mobile status of forearm (electric sphygmomanometer). The measured presses the mobile left forearm like that slowly of the arrow shown in Fig. 3 (b), and arrow as shown in Figure 3 (c) is such, makes electric sphygmomanometer 1 move 8b to the chest of the measured 8.
Here, as shown in Fig. 3 (f), before chest, 8b comprises the concept of this meaning before health. Mostly it is positioned at left breast due to heart or somewhat keeps right from left breast, so when beating of heart of detection, being suitable for being placed on left front. , owing to employing microwave Doppler sensor 21, even if so not being that left front also is able to be correctly detected out beating of heart. Such as, even left breast prism (left side abdomen above, the somewhat upper position of oxter), in the heart centre, or even right front different according to the measured also are able to detection. Therefore, the scope definition before chest is the region of 8b before the chest shown in Fig. 3 (f) by inventor.
Fig. 3 (d) indicates that the figure that mobile status is the 2nd mobile status. The measured moves forearm further, makes electric sphygmomanometer 1 move the appropriate location to height identical with heart 81 the arrow as shown in Fig. 3 (d) from the position of 8b before the chest of Fig. 3 (c).
It is identical with the height of heart 81 that Fig. 3 (e) illustrates electric sphygmomanometer 1, is in the state of appropriate location.
Electric sphygmomanometer 1 is the state of electric sphygmomanometer 1 self significantly action when being in 1 mobile status. It addition, be the state of electric sphygmomanometer 1 small size action when being in 2 mobile status.
When being in 1 mobile status, the amplitude utilizing the signal of telecommunication Eo from microwave Doppler sensor 21 output detects the 1st mobile status, when being in 2 mobile status, utilize the frequency content of the signal of telecommunication Eo signal comprised to detect pulse, and find appropriate location based on pulse, this will be described in more detail below.
In the following description, using microwave Doppler sensor 21, the method based on the signal of telecommunication Eo action detecting organism is slightly designated as " microwave detection ".
[action specification of embodiment: Fig. 2��4]
It follows that use Fig. 2��4 that the action of electric sphygmomanometer is described.
First, the action specification of appropriate location detection unit 2 is carried out.
In fig. 2, if the measurement that electric sphygmomanometer 1 is placed to wrist (not shown) press operating part by the measured 8 starts switch, then the microwave M e of about 2.5GHz launched by microwave Doppler sensor 21, and this microwave is reflected by the measured 8, receives by microwave receiver 212 as echo Mt.
Microwave Doppler sensor 21 exports signal of telecommunication Eo to the 1st converter 22 moving detection unit 25, and this signal of telecommunication Eo is the signal formed by the transmission microwave signal Eme based on microwave M e and the reception microwave signal Emt based on echo Mt.
After signal of telecommunication Eo is AD converted by converter 22, it can be used as seasonal effect in time series digital signal Do to move detection unit 24 to signal saturation detection portion the 23 and the 2nd and export.
Signal saturation detection portion 23 is transfused to digital signal Do, if the data variation amount of digital signal Do exceedes the number of times having predetermined regulation amplitude range, then moves detection unit 24 to the 2nd and exports the 1st mobile status end signal Ds.
Now, although not shown, but blood pressure measurement control portion 37 can also be transfused to the 1st mobile status end signal Ds that signal saturation detection portion 23 exports to control notification unit 4 so that it is terminate with sound, light or verbal announcement the 1st mobile status.
2nd moves detection unit 24 using digital signal Do as input, appropriate location is detected signal Ms and exports to measuring unit of blood pressure 3.
2nd moves the FFT process portion 242 of detection unit 24 based on the 2nd temporal information T2, digital signal Do is accumulated the stipulated time, carries out FFT process. This FFT processes and processes for the fast Fourier transform carrying out input signal. That is, the digital signal Do accumulated is being carried out Fourier transformation, after being decomposed into each signal component, carrying out representing the process of each composition on frequency spectrum, and export to pulse detection portion 243 as first-harmonic Bf.
Pulse detection portion 243 is transfused to first-harmonic Bf, extracts the composition of the frequency band relevant with pulse in first-harmonic Bf, exports to Pulse Rate calculating part 244 and blood pressure measurement detection unit 245 as pulse data Po.
Pulse Rate calculating part 244 calculates Pulse Rate based on pulse data Po, and exports to measuring unit of blood pressure 3 as Pulse Rate signal Mk.
Use Fig. 3 and Fig. 4 to be described in further detail the 1st signal saturation detection portion the 23 and the 2nd moving detection unit 25 and move the action of detection unit 24.
Fig. 4 illustrates that the 1st of appropriate location detection unit 2 moves detection unit 25 and the 2nd and moves the detection action of unit 24 and the oscillogram that schematically shows. Fig. 4 (a) is horizontal axis representing time T, and the longitudinal axis represents the amplitude of digital signal Do, illustrates digital signal Do, namely from the figure of the time change of the signal of microwave Doppler sensor 21 output.
The interval A of Fig. 4 (a) illustrates and lays electric sphygmomanometer 1 in wrist and pressed after the measurement of operating portion starts switch, the electric sphygmomanometer 1 time zone when the chest of the measured 8. This represent Fig. 3 (a) to the 1st mobile status shown in Fig. 3 (c).
Dx shown in Fig. 4 (a) represents the 1st saturation threshold, and Dm represents the 2nd saturation threshold. The amplitude range Dr of regulation is become between 1st saturation threshold Dx and the 2 saturation threshold Dm. It addition, Ds is the 1st mobile status end signal.
1st saturation threshold Dx and the 2 saturation threshold Dm can use the value predetermined. Utilize 2 threshold values to set the amplitude range Dr of regulation. In the example shown in Fig. 4 (a), the 2nd saturation threshold Dm is zero, becomes so-called zero saturation threshold, and using the amplitude of regulation the 1st so-called positive saturation threshold of saturation threshold Dx(as threshold value) between become the amplitude range Dr of regulation.
In interval A(the 1st mobile status) time, owing to the reflection of the microwave of the organism surface to the measured 8 adds the movement of forearm, so Doppler frequency shift increases, digital signal Do sharply becomes big. The number of times of the amplitude range Dr that digital signal Do has been exceeded regulation by the 1st signal saturation detection portion 23 moving detection unit 25 measures. And, when having exceeded the number of times of amplitude range Dr of regulation and having exceeded stipulated number, signal saturation detection portion 23 is detected as being in the 1st mobile status. Stipulated number can select its number etc. to set beforehand through experiment etc. Such as, if stipulated number being set to 10 times, then, when the amplitude range Dr that digital signal Do exceedes regulation is 10 times, detect as being in the 1st mobile status.
The interval A ' of Fig. 4 (a) is the part of the end of the interval A of Fig. 4 (a), is the 1st mobile status time zone when terminating.
As used Fig. 3 (a) to Fig. 3 (c) and Fig. 3 (f) explanation, forearm significantly action is made forearm to move to the chest of the measured 8 the 1st mobile status of 8b and terminate when the position of the close heart of 8b before the chest shown in Fig. 3 (c) come by electric sphygmomanometer 1. That is, if dropping in the scope of amplitude range Dr of regulation at interval A ' digital signal Do, then it is judged as that significantly action, i.e. the 1st mobile status do not terminate forearm. Using digital signal Do now as the 1st mobile status end signal Ds.
It is transfused to and carries out signal processing although the 2nd moves detection unit 24 from the 1st digital signal Do moving detection unit 25 output, but proceed by this process for the first time after being transfused to the 1st mobile status end signal Ds. Its reason is in that commencing signal does not process when the 1st mobile status is unclosed.
The interval B of Fig. 4 (a) represents the time zone that wrist is retained in the state near heart. This represent Fig. 3 (d) to the 2nd mobile status shown in Fig. 3 (e).
Due in interval B, although there is no the bigger shift action of forearm, but slightly move forearm to find appropriate location, so detection is less than the digital signal Do of the amplitude range Dr of regulation.The waveform of this interval B also comprises the waveform caused of beating of heart.
The figure of a part of digital signal Do in Fig. 4 (b) interval B shown in Fig. 4 (a) that has been enlarged representation. This time zone is set to interval D. This digital signal Do comprises the jitter components of the heart of the measured 8 detected, for instance P1, P2, P3.
Fig. 4 (c) is the figure schematically showing and digital signal Do having been undertaken by FFT process portion 242 waveform after fast Fourier transform processes. Frequency that to be X-axis be, Y-axis are the frequency spectrum profile of the intensity of the signal of each frequency content.
Digital signal Do, in the interval B of Fig. 4 (a), is accumulated the stipulated time based on the 2nd temporal information T2, carries out fast Fourier transform by FFT process portion 242, obtains the first-harmonic Bf of such frequency content shown in Fig. 4 (c).
The 2nd pulse detection portion 243 moving detection unit 24 calculates pulse data Po based on first-harmonic Bf from the frequency range of regulation.
Lf shown in Fig. 4 (c) is the 1st frequency threshold, and Hf is the 2nd frequency threshold. The frequency range Df1 of regulation is become between 1st frequency threshold Lf and the 2 frequency threshold Hf. This frequency range must be the scope catching pulse. Result according to inventor's experiment, by being such as set near 0.5Hz by the 1st frequency threshold Lf, is set near 3.0Hz by the 2nd frequency threshold Hf, it is possible to catch pulse.
Pulse detection portion 243 exports the spectrum distribution contained by frequency range Df1 in first-harmonic Bf, regulation as pulse data Po.
The pulse data Po of input is analyzed by blood pressure measurement detection unit 245. Owing to pulse data Po is the spectrum distribution of frequency content, it is possible to carry out the statistical dispositions such as its frequency content, power level or average, variance, standard deviation. If normally detecting pulse data Po, then blood pressure measurement detection unit 245 is judged to that electric sphygmomanometer is positioned at the appropriate location of blood pressure determination, terminates the 2nd mobile status. Now, as shown in Fig. 3 (e), the appropriate location that electric sphygmomanometer 1 is in heart 81 is identical height. And, blood pressure measurement is the appropriate location detection signal Ms of suitable result to measuring unit of blood pressure 3 output expression result by blood pressure measurement detection unit 245.
As shown in Figure 4 (c), owing to the spectrum distribution in the frequency range Df1 of regulation is pulse data Po, if so the 1st frequency threshold Lf and the 2 frequency threshold Hf is applicable threshold value, then necessarily comprising the waveform being suitable as pulse. Statistical disposition can also be passed through, for instance calculate the peak value of the pulse data Po each waveform comprised, utilize the appearance tendency etc. of this peak value to judge pulse. For instance, it is possible to the ripple risen continuous for the intensity of waveform 2 times is as pulse.
And, blood pressure measurement detection unit 245 utilizes the result of statistical disposition to determine whether appropriate location, output appropriate location detection signal Ms.
Appropriate location detection signal Ms can use the numerical value etc. in 1,2,3 these 3 stages of locative suitable degree. For instance, it is possible to suitably degree is divided into 3 stages with the intensity of peak value. Suitably degree can be determined as the most strength of peak value is appropriate location, than its weak place be from appropriate location slightly offset from position etc.
It is of course possible to the signal intensity of each frequency content of the longitudinal axis of Fig. 4 (c) is arranged one or more threshold value, the value to exceed this threshold value divides suitably degree. In this situation, it is possible to set in advance this threshold value, it is also possible to pulse data Po is carried out statistical disposition, occur that tendency calculates threshold value and uses based on it.
As has been explained above, 2nd action moving detection unit 24 is controlled by output i.e. the 1st mobile status end signal Ds in the 1st signal saturation detection portion 23 moving detection unit 25, if not being transfused to the 1st mobile status end signal Ds, then the 2nd move detection unit 24 do not carry out action. In such manner, it is possible to guarantee to carry out the 2nd mobile status detection after the 1st mobile status detection.
[action specification of measuring unit of blood pressure 3: Fig. 2]
It follows that use Fig. 2 that the action of measuring unit of blood pressure 3 is described.
In fig. 2, the electric sphygmomanometer 1 in the wrist being placed in the measured 8 is exported to the blood pressure measurement control portion 37 of measuring unit of blood pressure 3 as appropriate location detection signal Ms by the blood pressure measurement detection unit 245 of appropriate location detection unit 2 relative to the suitably degree of the position of heart height.
Blood pressure measurement control portion 37 exports appropriate location detection signal Ms to the display part 41 of notification unit 4. In the pulse condition display part 415a of the measuring condition display part 415 of display part 41, detect the labellings such as the grade in such as 3 stages of signal Ms, display "��", " �� ", "��" according to appropriate location.
Blood pressure measurement control portion 37 also exports appropriate location detection signal Ms to the notification unit 42 of notification unit 4. Notification unit 42 detects signal Ms according to appropriate location, carries out the voice-based notice such as " position of sphygomanometer is appropriate location " or " the Bu Shi appropriate location, position of sphygomanometer ".
Notification unit 42 can also utilize buzz, detects the grade in 3 stages of signal Ms according to appropriate location and notifies with different tone colors; Or use vibrating motor, the grade in 3 stages of appropriate location detection signal Ms is notified with different vibrations.
And, signal Ms detects based on appropriate location in blood pressure measurement control portion 37, controls the action of blood pressure measurement as described below.
If being set to grade 3 when being in place by electric sphygmomanometer 1, then blood pressure measurement control portion 37 is when signal Ms is detected in the appropriate location being transfused to grade 3, based on the Pulse Rate signal Mk of Pulse Rate calculating part 244, set the condition of pressing speed by pressurized conditions configuration part 371.
As shown in Figure 5, pressing speed set by pressurized conditions configuration part 371 can be divided into: when Pulse Rate is below 40bpm for 4.0mmHg/sec, bigger than 40 in Pulse Rate and when being below 80bpm for 8.0mmHg/sec, bigger than 80 in Pulse Rate and when being below 120bpm for 12.0mmHg/sec, and be these 4 stages of 16.0mmHg/sec when Pulse Rate is bigger than 120bpm. Additionally, the condition based on the pressing speed of Pulse Rate shown in Fig. 5 is an example, if it is possible to reliably detect out the pulse that 7 bats are above in pressurization, be then not limited to above-mentioned example, it is possible to be set as various condition.
If pressurized condition configuration part 371 sets pressurized conditions, then pressurized control portion 34 is exported pressurized control signal Kc by blood pressure measurement control portion 37 so that it is be controlled with set pressing speed. Pressurized control portion 34 exports based on the pressurized control signal Kc pressurised driving signal Kd that force (forcing) pump 33 is driven to force (forcing) pump 33. Bandage 31 is pressurizeed after receiving the pressurised driving signal Kd of pressurized control portion 34 output by force (forcing) pump 33.
So, bandage 31 is pressurizeed with the pressing speed bandage corresponding with Pulse Rate, in the pressurization of bandage 31, by pressure transducer 32, the pressure of bandage 31 is exported blood pressure measurement control portion 37 at any time.If bandage 31 is pressurized to the pressure of regulation and makes the blood vessel of the measuring point of the measured 8 oppressed, then corresponding with the pulse of the measured 8 pressure vibration and bandage laminated add. Blood pressure measurement control portion 37, based on the pressure signal So exported by pressure transducer 32, detects that the pressure vibration based on pulse added with bandage laminated is as pulse amplitude.
Blood pressure measurement control portion 37 is according to the pulse amplitude comprised in the pressure signal So of pressure transducer 32, based on the pressure value computational methods of oscillography mode, calculates maximal blood pressure value, minimal blood pressure value, Pulse Rate etc.
If blood pressure measurement control portion 37 has obtained maximal blood pressure value, minimal blood pressure value, then pressurized control portion 34 is controlled, stops the action of force (forcing) pump 33.
Blood pressure measurement control portion 37 exports vent control signal Hc to exhaust control portion 36. Exhaust control portion 36 exports based on the vent control signal Hc exhaust gas drive signal Hd that air bleeding valve 35 is controlled to air bleeding valve 35.
Air bleeding valve 35 makes air bleeding valve standard-sized sheet based on exhaust gas drive signal Hd, quickly discharges the air of bandage 31.
Blood pressure measurement control portion 37, while discharging the air of bandage, using the maximal blood pressure value calculated, minimal blood pressure value, Pulse Rate etc. as blood pressure information Kj, exports to the display part 41 of notification unit 4.
The supervision of the appropriate location in blood pressure measurement is illustrated.
In blood pressure measurement, there is the situation that the height of electric sphygmomanometer 1 changes from the height of heart. Even if in position starting blood pressure measurement, if putting down forearm etc. in the way of blood pressure measurement and deviateing from appropriate location, then the pressure value measured is also insincere. When the measured so careless cause forearm from the state of appropriate location deviation etc. time, even if the measured self is wanted to measure correct blood pressure, be actually also carried out incorrect blood pressure measurement.
In order to avoid such situation, electric sphygmomanometer 1 after this position becomes appropriate location and started blood pressure measurement, can further proceed with microwave detection, monitor whether it is appropriate location.
Terminate in the 2nd mobile status and after having started blood pressure measurement, also continue to monitor the peak value of pulse data Po, output appropriate location detection signal Ms.
In position during detection signal Ms change, notification unit 4 is used to notify. Such as notice " deviate from from appropriate location " etc. It addition, when the grade that signal Ms is detected in appropriate location significantly changes, interrupt blood pressure measurement. Such as, when the grade 3 when from appropriate location is changed to the grade 1 when significantly deviateing from appropriate location, electric sphygmomanometer 1 deviates from cardiac position, and electric sphygmomanometer 1 utilizes notification unit 4 to notify " termination blood pressure measurement ", thus interrupting blood pressure measurement.
Although there is also the reason due to the measured rather than the blood pressure measurement based on appropriate location, in any case but all want the situation knowing pressure value. Now, it is also possible to the measurement of operation operating portion starts switch etc., starts blood pressure measurement forcibly.
[explanation of motion flow: Fig. 6]
It follows that mainly use Fig. 6 in detail, the motion flow of the blood pressure measurement of electric sphygmomanometer 1 is described in detail. Fig. 6 illustrates to lay electric sphygmomanometer 1 in wrist, the flow chart of the action terminating to blood pressure measurement. Hereinafter, action step is slightly designated as S1, S2 ..., Sn.
First, the measured 8 lays electric sphygmomanometer 1 the measurement start button (S1) of press operating part in wrist.
Then, detect unit 2 by the appropriate location shown in Fig. 3 and start microwave detection (S2).
The measured 8 makes the wrist having laid electric sphygmomanometer 1 move to chest (the 1st mobile status). During this period, by signal saturation detection portion 23, the number of times of the amplitude range that the amplitude of digital signal Do exceedes regulation is measured. If the significantly mobile end of forearm, then digital signal Do drops into the amplitude range Dr of regulation, and the 1st mobile status terminates. If the 1st mobile status terminates, then signal saturation detection portion 23 exports the 1st mobile status end signal Ds(S3: "Yes").
Now, although not illustrating in Fig. 3 and Fig. 6, it may also be blood pressure measurement control portion 3 is transfused to the 1st mobile status end signal Ds of signal saturation detection portion 23 output, by the notification unit 42 of notification unit 4 is controlled, with the information that the 1st mobile status such as sound, light or verbal announcement " sphygomanometer is in suitable position " terminate.
In the 1st unclosed situation of mobile status, blood pressure measurement control portion 3 is in the measurement state based on signal saturation detection portion 23, it is judged as that the measured 8 is but without making wrist be sufficiently close together breast or close mode is incorrect, in the 1st unclosed situation of mobile status (S3: "No"), by controlling the notification unit 42 of notification unit 4, carry out the verbal announcement (S4) of the position of the sphygomanometer " and incorrect " or " please again by sphygomanometer near chest " etc.
In order to, after making sphygomanometer carry out verbal announcement near chest, return to S3, carry out the detection of the 1st mobile status. Repeatedly perform the process of S3 and S4, till detecting the end of the 1st mobile status.
If the 1st mobile status terminates, then the FFT process portion 242 of detection unit 24 is moved based on the 2nd temporal information T2 to digital signal Do accumulation stipulated time (S5) in the 2nd shown in Fig. 3.
The digital signal Do that have accumulated the stipulated time is carried out FFT process by FFT process portion 242, calculates first-harmonic Bf(S6).
Shown in Fig. 3 the 2nd is moved the pulse detection portion 243 of detection unit 24 and is exported pulse data Po according to first-harmonic Bf.
Pulse Rate calculating part 244 calculates Pulse Rate (S7) based on pulse data Po.
Blood pressure judges the measurement portion 245 detection according to the pulse data Po of the frequency range dropping on regulation, it is determined that be in identical height for electric sphygmomanometer 1 and heart before chest. This is the detection of end (S8: "Yes") of the 2nd mobile status.
Wherein, it is stipulated that if frequency range by experiment wait obtain in advance, for instance the spectrum distribution of pulse can be set to the scope of 0.5Hz to 3.0Hz.
When blood pressure judges that measurement portion 245 can not detect pulse data Po and cannot be judged to before chest that electric sphygmomanometer 1 and heart are in identical height (S8: "No"), blood pressure measurement control portion 37 detects signal Ms based on appropriate location and carries out warning tones, warning display. Such as, notification unit 4 is used to notify " please upwards being lifted by sphygomanometer " or " please by sphygomanometer again toward transferring " etc. (S9) again.
Additionally, there are owing to before chest, electric sphygmomanometer 1 and the distance of heart are separated by excessive and are examined the situation that do not measure pulse data Po. Now, notices such as " please by sphygomanometer further towards chest " is carried out.
Notifying for mobile electron sphygomanometer 1, so that after electric sphygmomanometer 1 is in the height identical with heart, returning to S5, being repeatedly performed the process of S5 to S9, till detecting the end of the 2nd mobile status.
Shown in Fig. 2 the 2nd is moved the blood pressure measurement detection unit 245 of detection unit 24 and is such as exported appropriate location detection signal Ms with the grade in 3 stages. Notification unit 4 uses notification unit 42, and with the suitably degree according to heart height, different buzzs or labelling notify this grade. And, if the 2nd mobile status terminates, then terminate microwave detection (S10).
The pressurized conditions configuration part 371 in blood pressure measurement control portion 37, based on the Pulse Rate signal Mk calculated by Pulse Rate calculating part 244, selects pressing speed (S11).
Pressurized control portion 34 is controlled driving force (forcing) pump 33 by blood pressure measurement control portion 37, according to the mode becoming the pressing speed set by pressurized conditions configuration part 371, bandage is pressurizeed, and starts based on the blood pressure measurement (S12) of measuring unit of blood pressure 3.
As mentioned above, measuring unit of blood pressure 3 is based on the pressure vibration waveform at the pressure signal So being controlled period pressure transducer 32 output that pressurized control portion 34 carries out pressurizeing by blood pressure measurement control portion 37, calculate the blood pressure information Kj such as maximal blood pressure value, minimal blood pressure value, Pulse Rate, and show (S13) on display part 41.
In addition it is also possible to after the 2nd mobile status terminates (S8), do not make the microwave detection of S10 also continue to terminating monitor appropriate location detection signal Ms in blood pressure measurement. In this situation, the appropriate location that notification unit 4 notifies in blood pressure measurement is used to detect the monitoring result of signal Ms. Such as, when electric sphygmomanometer 1 deviates from appropriate location, notify this situation, interrupt blood pressure measurement and terminate.
If blood pressure measurement terminates, then the blood pressure information memorizer 372 in blood pressure measurement control portion 37 stores the blood pressure informations such as maximal blood pressure value, minimal blood pressure value and Pulse Rate and appropriate location detection signal Ms.
The measurement of the measured press operating part starts switch and terminates to measure (S10). Now, blood pressure information memorizer 372 can also store the blood pressure informations such as maximal blood pressure value, minimal blood pressure value and Pulse Rate and appropriate location detection signal Ms.
[effect of embodiment illustrates]
Due to based on the Pulse Rate detected in period forethiga correctly guided to appropriate location by microwave Doppler sensor, the pressing speed setting bandage carries out blood pressure measurement, it is possible to carry out pressurizeing, measuring with the optimum pressurized speed of applicable the measured such that it is able to shorten the measurement time.
In the embodiment described above, illustrate the example of the electric sphygmomanometer laying the present invention in wrist, but upper arm parts etc. can certainly be placed in. It addition, the composition being integrally forming for bandage 31 and sphygomanometer main body 11 is illustrated, but as long as bandage and microwave Doppler sensor are integrally formed, other composition can also split.
It addition, in the embodiment described above, the electric sphygmomanometer describing the present invention uses Pulse Rate to set the example of pressing speed but it also may replace Pulse Rate to use pulse interval. Can pass through based on pulse data Po(Hz) value of obtaining 1/Po calculates pulse interval (sec), it is also possible to calculate pulse interval (sec) by the inverse of Pulse Rate (bpm) is multiplied by 60 times.
It addition, in the above-described embodiment, describe to measuring point be guided the example using microwave Doppler sensor to appropriate location, but the present invention is not limited to this.
For example, it is also possible to use the heart sound transducers such as microphone (microphone) to detect the appropriate location of measuring point.In this situation, as long as the intensity of the heart sound detected with heart sound transducer guides to detect appropriate location, and obtain its Pulse Rate based on the heart sound detected, select suitable pressing speed.
And, it is possible to use acceleration transducer detects the appropriate location of measuring point. In this situation, utilize acceleration transducer to detect whether forearm protrudes horizontally up, thus detecting whether measuring point is in appropriate location, if and owing to protruding horizontally up forearm, then fine motion Tong Bu with pulse, as long as so by utilizing acceleration transducer obtain the fine motion cycle and be scaled Pulse Rate, selecting suitable pressing speed according to Pulse Rate (pulse interval).
In such cases, bandage and the sphygomanometer main body including each sensor can be one, it is also possible to be that bandage is integrally constituted with each sensor, constituting for independent monomer of other.
Claims (10)
1. an electric sphygmomanometer, pressurizes to the bandage of the part being placed in organism, calculates blood pressure based on the pulse signal that adds of bandage laminated in pressurization, it is characterised in that
Having pressurized conditions setup unit, this pressurized conditions setup unit sets the pressing speed of bandage based on the Biont information of the measured detected before bandage is pressurized,
There is the Biont information based on the measured, the position detection unit that the position of the measuring point having laid bandage is detected,
Described pressurized conditions setup unit sets the pressing speed of bandage based on the Biont information that the period of position detecting measuring point in described position detection unit detects.
2. electric sphygmomanometer according to claim 1, it is characterised in that
There is the blood pressure measurement control unit of the control carrying out blood pressure measurement,
When described position detection unit is judged to that described measuring point moves to appropriate location, bandage is pressurizeed by described blood pressure measurement control unit with the pressing speed set by described pressurized conditions setup unit, starts blood pressure measurement.
3. electric sphygmomanometer according to claim 1, it is characterised in that
Described position detection unit possesses microwave generator and microwave receiver, from described microwave generator to described the measured irradiating microwaves, the echo being created Doppler frequency shift by the action to the organism because of described the measured of the described microwave receiver is detected, and detects the position of measuring point based on this echo.
4. electric sphygmomanometer according to claim 2, it is characterised in that
Described position detection unit possesses microwave generator and microwave receiver, from described microwave generator to described the measured irradiating microwaves, the echo being created Doppler frequency shift by the action to the organism because of described the measured of the described microwave receiver is detected, and detects the position of measuring point based on this echo.
5. the electric sphygmomanometer according to any one in Claims 1 to 4, it is characterised in that
Described position detection unit is also equipped with:
1st moves detection unit, and its 1st mobile status that measuring point having laid described bandage is above moved to chest detects; With
2nd moves detection unit, and its 2nd mobile status that measuring point having laid described bandage is moved to the appropriate location before chest detects;
After moving detection by the described 1st unit is judged to that described 1st mobile status terminates, move detection unit by the described 2nd and detect the 2nd mobile status.
6. electric sphygmomanometer according to claim 5, it is characterised in that
The pulse that when described pressurized conditions setup unit is used in described 2nd mobile status is detected, described position detection unit detects is to set the pressing speed of bandage.
7. electric sphygmomanometer according to claim 5, it is characterised in that
Position detection unit finishes the detection of the 2nd mobile status and is judged to complete the measuring point movement to appropriate location according to being moved detection unit by the described 2nd.
8. electric sphygmomanometer according to claim 6, it is characterised in that
Position detection unit finishes the detection of the 2nd mobile status and is judged to complete the measuring point movement to appropriate location according to being moved detection unit by the described 2nd.
9. electric sphygmomanometer according to claim 1 and 2, it is characterised in that
Described position detection unit is microphone, and the intensity of the heart sound detected according to microphone detects the position of measuring point.
10. electric sphygmomanometer according to claim 1 and 2, it is characterised in that
Described position detection unit is acceleration transducer, utilizes whether acceleration transducer detection forearm is that level is to detect the position of measuring point.
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| JP2011181312A JP5718189B2 (en) | 2011-08-23 | 2011-08-23 | Electronic blood pressure monitor |
| JP2011-181312 | 2011-08-23 |
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| CN105792734B (en) * | 2013-10-01 | 2018-11-27 | 皇家飞利浦有限公司 | For obtaining the improved signal behavior of long-range photo-plethysmographic waveform |
| CN104665784B (en) * | 2014-12-29 | 2017-07-25 | 苏州佳世达电通有限公司 | Physiological sensing device, physiological sensing system and physiological sensing method |
| US10835133B2 (en) * | 2016-12-20 | 2020-11-17 | Medtronic, Inc. | Hydrostatic offset adjustment for measured cardiovascular pressure values |
| EP3375358B1 (en) * | 2017-03-15 | 2023-10-25 | Withings | Device for analysing cardiovascular parameters of an individual |
| JP7154803B2 (en) * | 2018-04-12 | 2022-10-18 | オムロン株式会社 | Biological information measuring device, method and program |
| JP2022503484A (en) * | 2018-08-14 | 2022-01-12 | ジ アサン ファウンデーション | Information acquisition method using cardiopulmonary sound |
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| CN1689507A (en) * | 2004-04-20 | 2005-11-02 | 欧姆龙健康医疗事业株式会社 | Electronic blood pressure meter and blood pressure measuring method |
| CN101528120A (en) * | 2006-10-27 | 2009-09-09 | 西铁城控股株式会社 | Electronic sphygmometer |
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Address after: Tokyo, Japan, Japan Patentee after: Citizen Watch Co., Ltd. Patentee after: Citizen Holdings Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Citizen Watch Co., Ltd. Patentee before: Citizen Holdings Co., Ltd. |