Watch strap human blood pressure non-invasive continuous detection device
Technical field
The invention belongs to general electronic blood pressure measurement device, particularly based on the watch strap human blood pressure non-invasive continuous detection device of pulse wave characteristic parameters.
Technical background
At present, blood pressure measurement mainly is divided into intrusive mood measurement and non-intrusion measurement two big classes.The intrusive mood measurement is a kind of direct measuring method, will be inserted into a conduit in the tremulous pulse when measuring arteriotony.This method need and cause bacterial infection easily by professional health care personnel operation, expense height.Non-intrusion type is a kind of indirect measurement method.This method is safe in utilization, convenient, be at present clinical in blood pressure measuring method commonly used.
Non-intrusion measurement mainly contains auscultation (Ke Shi sound method) and succusion (oscillographic method).The auscultation ratio juris is to collect the Ke Shi sound.Whole device comprises cuff, mercury gauge and the stethoscope that can charge and discharge gas.The vibration ratio juris is to utilize the oscillography principle of blood pressure waveform to judge systolic pressure and diastolic pressure, is the method that at present domestic and international most of noinvasive automatic sphygmomanometers adopt.
Most of product in the market all adopts auscultation or succusion to measure blood pressure, but owing to these two kinds of methods all need cuff is charged and discharged gas.Its shortcoming is: cuff charge and discharge the discomfort that the gas process can cause the experimenter.If use cuff continually, the tissue and the blood vessel of cuff below may be owing to frequent compressing sustains damage.In addition, need the regular hour, can't realize continuous measurement blood pressure owing to charge and discharge gas.
Nearest result of study shows that the measurement of sleeveless belt non-invasive blood pressure has become possibility.A kind of method wherein is to utilize pulse wave propagation speed to come pre-measuring blood pressure.Pulse wave propagation speed is meant the speed that pulse wave is propagated along tremulous pulse.Multinomial result of study shows: pulse wave propagation speed is relevant with blood pressure.A kind of method of measurement pulse wave velocity commonly used is to measure the pulse wave propagate time, just passes on the tremulous pulse certain required time a bit from heart.United States Patent (USP) 5649543,5865755 and 6599251 and European patent 0443267 etc. in the method for utilizing pulse wave transmission time or speed to measure blood pressure is disclosed.The pulse wave transmission time can utilize on reference point on the electrocardiosignal and the inherent peripheral arterial of same cardiac cycle the reference point on the detected pulse wave to determine.Pulse wave can detect by method of optics, and this method is exactly the photoplethaysmography method.The Power Capacity tracing is by getting to light on the bodily tissue, and measures systemic reflected light, transillumination or scattered light, by the optical signal that photoelectric detector receives, characterized the tissue situation of change of blood flow down.
The benefit of utilizing pulse wave transmission time or speed to measure blood pressure is not need to use cuff, therefore a kind of quick and comfortable measuring method can be provided, this method need not to use complex mechanical construction, and only need use several dried electrodes to detect electrocardiosignal, detect the photoplethaysmography signal by a pair of infrarede emitting diode and photoelectric detector; And can realize successive measurement.But its deficiency is the measurement in pulse wave transmission time need utilize electrocardio checkout equipment and pulse wave detection device, and checkout equipment is various and when measuring, the experimenter can not be free movable, is not suitable for long continuous detecting, is only applicable to the use clinic in.
In United States Patent (USP) 5752920 and European patent 0875200,0821910,1312301, disclose cuff formula blood pressure measurement and non-cuff formula blood pressure measurement have been integrated into the thought on the unit.But volume is bigger usually because comprising cuff, pump and valve for cuff formula device, is not easy to carry.
In a word, volume is bigger usually because comprising cuff, pump and valve for traditional blood pressure measuring method, has the shortcoming that is not easy to carry, and there is the inaccurate defective of resetting in existing pulse wave measurement device.
Summary of the invention
For overcoming the deficiencies in the prior art, the objective of the invention is to: provide a kind of and be convenient to wear, detection method is simple, do not influence the free movable of experimenter in the measuring process, the novel watch strap human blood pressure non-invasive continuous detection device that is fit to noinvasive continuous blood pressure measuring value in 24 hours realizes that the continuous blood pressure of Energy and comfort is measured.This device not only can overcome traditional blood pressure measuring method because comprising cuff, pump and valve common big, the shortcoming that is not easy to carry of volume, and the inaccurate defective of resetting of having evaded existing pulse wave measurement device.
In order to achieve the above object, the technical solution used in the present invention is: watch strap human blood pressure non-invasive continuous detection device, comprise watch and human pulse ripple checkout gear two parts, these two parts are connected with electrical signal line by wrist strap, and human pulse ripple checkout gear is made of the pedestal of pressure resistance type pulse wave sensor and pulse wave sensor; In the watch of pulse wave signal blood processor attached to wrist carried human blood-pressure continuous detection apparatus, described wrist strap by pulse wave sensor holddown belt, sensing station adjustment band, the length dimension that is used to adjust wrist strap length adjusts piece, the camber that is used to adjust wrist strap and pulses measure point position relation is adjusted piece, tighten up to be with and constitute.
Described camber is adjusted the recess that piece is provided with corresponding olecroanon, realizes resetting that the olecranon location guarantees wrist strap accurately and guarantee not take place wrist strap scurry a phenomenon in the continuous detecting process, and recess is provided with slide plate and realizes that two retainings are adjustable.
Described pulse wave signal blood processor is made of the signals collecting and processing module, blood pressure calibration module, signal operation processing module, signal storage module, display module, the communication module that adhere in the watch.
Described pulse wave sensing is made by the pressure drag wafer material, and is packaged into spherical shape with silica gel.
Described pulse wave sensor holddown belt structure further comprises: pulse wave sensor is fixed within the longitudinal sliding block by compression spring and spring lid, longitudinal sliding block is installed in the transverse slider based on longitudinal rail, can slide by trace based on transverse slider its position on longitudinal rail, its position is come locked by card ball, jump ring silk, thereby realizes making pick off position adjustment in the vertical; Transverse slider is installed in the sensor base based on cross slide way again, can slide by trace based on sensor base its position on cross slide way is horizontal, and its position is come locked by card ball, jump ring and jackscrew, thereby realizes making pick off position adjustment in the horizontal; The contact pressure of pick off then screws position adjustment based on spring lid.
The present invention possesses following technique effect:
The present invention is owing to adopted structures such as wrist strap, pulse wave signal blood processor, dependency relation based on the characteristic parameter and the human blood-pressure of human pulse ripple, provide the pairing pressure value of each cardiac cycle by real-time detection, thereby the present invention can realize the continuous blood pressure measurement of Energy and comfort to the body surface pulse wave.
The present invention adopts portable wrist strap structure, and its outward appearance just equally can conveniently be worn detection with wrist-watch, and in the testing process, normal life activity is unrestricted.
The present invention adopts the pulse wave signal blood processor, thereby the present invention has automatic recognition function, and it is capable of automatic alarm that blood pressure exceeds normal range, and alarm limit can vary with each individual, set up on their own.
The present invention adopts the pick off spring structure, the contact pressure of pick off can be adjusted, in testing process, it is constant that the contact pressure of pick off keeps, again wear detection, the force value of former setting remains unchanged, and employing is horizontal, the longitudinal sliding block structure can realize pick off and pulse collection point is accurately located mutually, makes blood pressure measurement more accurate.
Wrist strap of the present invention is provided with the length adjustment piece and camber is adjusted piece, and the physical dimension of wrist strap and shape can be adjusted, to adapt to different individualities.
The present invention has adopted based on human body wrist olecroanon location structure, when wearing resetting accurate, the data good reproducibility of measurement is suitable for successive blood pressure measurement, and can record the instantaneous pressure value of human body.
Description of drawings
Fig. 1 is the outside drawing of apparatus of the present invention embodiment.Wherein 1 is the watch part, and the guiding mechanism of liquid-crystal display section and physical dimension length and shape is arranged above it.2 is the camber adjustment piece on the wrist strap.3 the bands that tighten up for wrist strap.4 is the pulse wave sensor holddown belt.5 is the pulse wave sensor gauge head.6 is pulse wave sensor position adjustment band.7 are length dimension adjustment piece.
Fig. 2 is for adjusting the block structure sketch map.Among Fig. 2,2a is that camber is adjusted the block structure sketch map, and 2b is that length dimension is adjusted the block structure sketch map.
Fig. 3. watch part schematic appearance.Wherein Fig. 3 .a adjusts schematic appearance for the wrist strap camber, is that two retainings are adjustable; Fig. 3 .b is a watch part schematic appearance.
Fig. 4. be pulse wave sensor sonde configuration sketch map.
Fig. 5. be pulse wave sensor sonde configuration assembling sketch map.Among the figure, 11 is sensor base, and 12 is cross slide way, and 13 are the spring lid, and 14 are the compression spring, and 15 is pulse wave sensor, and 16 is loam cake, and 17 are the card ball, and 18 is jump ring, and 19 is jackscrew, and 20 is transverse slider, and 21 is longitudinal sliding block, and 22 is longitudinal rail.
The specific embodiment
The object of the present invention is to provide a kind of brand-new blood pressure continuous measurement device and method, this device not only can overcome traditional blood pressure measuring method because comprising cuff, pump and valve common big, the shortcoming that is not easy to carry of volume, and the inaccurate defective of resetting of having evaded existing pulse wave measurement device.Device of the present invention resetting when wearing is accurate, and the data good reproducibility of measurement is suitable for successive blood pressure measurement, and can record the instantaneous pressure value of human body.
The technical scheme of watch strap human blood pressure non-invasive continuous detection device of the present invention is:
First aspect: provided a kind of checkout gear that is installed in the human body radial artery pulse wave on the wrist strap, it is characterized in that: this checkout gear is to be made of institutes such as pressure resistance type pulse wave sensor, transverse slider, longitudinal sliding block and compression springs.Wherein, transverse slider plays pulse wave sensor and transversely carries out position adjustments at wrist strap; Longitudinal sliding block plays pulse wave sensor and regulates at the vertical enterprising line position of wrist strap; The compression spring plays the contact pressure that guarantees the pulse wave sensor probe and keeps invariable.Guaranteed that accurate location and the contact pressure of pick off of pulse wave sensor on pulse keeps constant and can adjust.
Second aspect: the construction features that its shape of the rigid element of wrist strap is based on human body wrist olecroanon portion designs, and can guarantee that wrist strap is not scurried a phenomenon and resetting accuracy height in testing process; The physical dimension of this part and shape can be adjusted, and wear with the people who adapts to different fat handss and wrist shape.
The third aspect: watch strap human blood pressure non-invasive continuous detection device of the present invention, it is characterized in that: when the wrist that watch strap human blood pressure non-invasive continuous detection device is worn to the experimenter begins to detect, detect by the blood pressure of arm belt human blood-pressure calibrating installation simultaneously the experimenter, and with detected pressure value as the blood pressure calibration information, set up the dependency relation of detected pulse wave characteristic parameters of described watch strap human blood pressure non-invasive continuous detection device and actual human body pressure value; Utilize this dependency relation,, just can determine the pairing human body actual blood pressure of this characteristic ginseng value value based on the detected pulse wave characteristic parameters of watch strap human blood pressure non-invasive continuous detection device.24 hours noinvasive continuous detecting is carried out in realization to the blood pressure of human body.
Further specify the present invention below in conjunction with accompanying drawing.
Fig. 1 is the outside drawing of apparatus of the present invention embodiment.Wherein 1 is the watch part, and the guiding mechanism of liquid-crystal display section and physical dimension length and shape is arranged above it, and its adjustment structure and principle are as Fig. 2. shown in.2 is the camber adjustment piece on the wrist strap.3 the bands that tighten up for wrist strap.4 is the pulse wave sensor holddown belt, in order to guarantee pulse wave sensor and measured surface excellent contact.5. be pulse wave sensor side head.6. be pulse wave sensor position adjustment band.7. adjust piece for length dimension.
In Fig. 2 .a, can be according to the on position difference of alignment pin, the camber degree difference of its wrist strap; In Fig. 2 .b, position that can be different with b, the length difference of its wrist strap according to the insertion a of alignment pin.Adapting to different individualities with this physical dimension of adjusting wrist strap with shape wears.
Fig. 3. watch part schematic appearance.Wherein Fig. 3 .a adjusts schematic appearance for the wrist strap camber, is that two retainings are adjustable; Fig. 3 .b is a watch part schematic appearance.Arrow place pointed is the recess that is used for olecroanon place location usefulness among the figure, with the resetting that guarantees wrist strap accurately and guarantee not take place wrist strap scurry a phenomenon in the continuous detecting process.
Fig. 4. be pulse wave sensor sonde configuration sketch map.Fig. 5. be pulse wave sensor sonde configuration assembling sketch map.Pulse wave sensor is fixed within the longitudinal sliding block by compression spring and spring lid, longitudinal sliding block is installed in the transverse slider based on longitudinal rail, can slide by trace based on transverse slider its position on longitudinal rail, its position is come locked by card ball and jump ring, thereby realizes making pick off position adjustment in the vertical; Transverse slider is installed in the sensor base based on cross slide way again, can slide by trace based on sensor base its position on cross slide way is horizontal, and its position is come locked by card ball, jump ring and jackscrew, thereby realizes making pick off position adjustment in the horizontal; The contact pressure of pick off then screws position adjustment based on spring lid.
The present invention is summarized as follows:
A kind of based on the localized watch strap human blood pressure non-invasive continuous detection device of human body wrist olecroanon.Comprising human pulse ripple checkout gear and pulse wave signal blood processor two parts, these two parts are connected with electrical signal line by wrist strap.Pulse pressure signal, pulse wave signal blood processor that pulse wave detection device is used to pick up human body radial artery place then carry out analyzing and processing according to the blood pressure calibration information that arm belt human blood-pressure calibrating installation provides to detected human pulse ripple signal, provide the continuous detecting result of human blood-pressure value.
The present invention includes based on the localized wrist strap fixed form of human body wrist olecroanon.
Wrist strap fixed form of the present invention is that the olecranon formula pedestal by wrist strap constitutes; Olecranon formula pedestal is adjustable on the size of shape and size, uses to adapt to different people fat or thin and wrist shape.
The present invention further comprises: pulse wave sensor is installed on the olecranon formula pedestal, and its position is adjustable on orthogonal both direction, with the probe that guarantees pick off be accurately positioned in pulse directly over the position.
Pulse wave sensing of the present invention is made by the pressure drag wafer material, and is packaged into spherical shape with silica gel.
Signal processing of the present invention is made of signals collecting and processing module, blood pressure calibration module, signal operation processing module, signal storage module, display module, communication module etc.
The present invention is portable, and its outward appearance just equally can conveniently be worn detection with wrist-watch; In testing process, experimenter's activity orthobiosis is unrestricted.
The present invention can realize 24 hours continuous detecting of the noninvasive no cuff mode of human blood-pressure and warning are comprised following process:
Blood pressure calibration process: when apparatus of the present invention begin to detect, detect by the blood pressure of arm belt human blood-pressure calibrating installation simultaneously the experimenter, and with detected pressure value as the blood pressure calibration information, set up the relation of the measurement parameter and the actual human body blood pressure of described watch strap human blood pressure non-invasive continuous detection device.
Blood pressure testing process: the relation of utilizing the measurement parameter and the actual human body pressure value of the watch strap human blood pressure non-invasive continuous detection device of setting up in the blood pressure calibration process, according to the detected parameter of watch strap human blood pressure non-invasive continuous detection device, determine the pairing actual blood pressure value of this parameter value.
The present invention is when the concerning of the measurement parameter of setting up described watch strap human blood pressure non-invasive continuous detection device and actual human body blood pressure, described watch strap human blood pressure non-invasive continuous detection device and arm belt human blood-pressure calibrating installation detect synchronously.
The present invention further comprises: utilize described method can provide experimenter's instantaneous pressure value and the pairing pressure value of each cardiac cycle.
Those skilled in the art, certain change is made in the enlightenment that can provide according to the present invention, for example changes the mutual alignment relation of fixing band and pick off adjustment band, realizes purpose of the present invention, obtains effect of the present invention.These changes are also within the coverage of description of the present invention.