Background technology
Health always is theme of people's attention, and in the modern society for pursuing high-quality life, people are more awakeRecognize the importance of health in ground.Population accelerates aging, checks that equipment proposes new requirement to vital sign.Traditional lifeSign inspection is ordered, people need that hospital is gone to pass through various special detection devices to complete；Patient will not only pay higherInspection fee, and to physically go to hospital every time and bother very much, more cannot timely it check whenever and wherever possible.With new skillThe fast development of art especially large scale integrated circuit, various detections are looked into equipment and are increasingly minimized, this allows some commonly to examineEquipment is looked into enter common people's family, be even worn on the person and become possibility.But it sells currently on the market various smallThe household vital sign of type checks equipment, and often function is relatively simple, when needing to do some routine inspections, such as：Blood pressure is surveyedAmount, pulse rate measurement, Oximetry, it has to while several detection devices are bought, this both increases purchase vital sign inspectionThe expense that equipment is paid is looked into, but also needing continuous replacement detection device when checking, enables detection process very cumbersome.SeparatelyOutside, above-mentioned vital sign checks that equipment is required for taking off after having checked, and is not suitable for long-term carrying, therefore cannot supervise in real timeThe physical condition for surveying user, cannot be satisfied the needs of some special populations.For example, early period occurs in disease, people are often notIt can find in time and miss optimal treatment period.Meanwhile the patient with chronic disease or major disease generally can not be real-timeUnderstand self health status, can not also know the influence that daily life custom and environmental factor generate disease, therefore cannot leadDynamic management own health.
Heart disease is a kind of heart disease that incidence is very high and very common, there is that progression of the disease is slow and hidden, oneDenier morbidity is the characteristics of sb.'s sickness becomes critical, seriously threatens the health and life of the mankind.Heart rate in identification daily life in time losesCardiac symptoms are often waited, effective prevention and remedy measures is taken, can largely improve the success for saving patient vitalsRate.Various ways may be used in the acquisition of heart signal, and most common of which is electrocardiosignal, and electrocardiogram is to check that heart is emergingThe objective indicator of generation, propagation and the recovery process put forth energy.Each cardiac cycle of heart along with biological Electrical change, thisA little bioelectric variations are known as electrocardio.The direction of this biology Electrical change, frequency, intensity are regular.If will by electrodeThe electrical signal detection of body surface different parts comes out, then is amplified with amplifier, and logger is used in combination to trace, so that it may obtain the heartElectrograph shape.Doctor according to the relative time relationship between the form, wave amplitude size and each wave of the electrocardiographic wave recorded, thenCompared with normal ECG, it just can be diagnosed to be heart disease, such as electrocardio irregularity of pulse, myocardial infarction, proiosystole, high bloodPressure, ectocardia beating etc..For acute cardiac patient, need to do routine electrocardiogram inspection, and urgent patient then needsContinuous dynamic ecg monitoring is carried out during in hospital.Portable cardiac monitoring terminal uses sticky Ag/AgCl electrodes at present,Skin allergy can be caused when wearing for a long time, and since Electrolyte Gel knows from experience dehydration and drying, is caused between electrode and skinContact impedance change, cause measuring signal sensitivity and signal-to-noise ratio decline.It is highly sensitive to develop flexible skin friendlySpending EGC sensor has important clinical value.
The systolic blood pressure of heart can reflect the function status of human heart and blood vessel, be clinical diagnosis disease, observationTherapeutic effect, the important evidence for carrying out Index for diagnosis.As heart is regularly shunk and diastole, driving blood flows in the blood vesselsIt is dynamic, generate pulse wave.Pulse wave is capable of providing blood vessel elasticity and blood flowing speed information, can be calculated by pulse wave velocityBlood pressure information.Pressure sensor pressing is calculated the artery from pressing position by the extraction of usual pulse wave on bodily surfacesPulse wave.Since depressed power size and location is affected to pulse waveform precision, the medical care people of profession is neededMember's operation.Currently, commercially available pulse detecting device exists expensive more, size is bigger than normal, inconvenient to carry, is not easy to continuously superviseIt surveys.And the portable unit of the monitoring human pulse of commercially available hand-chain type, mostly use PVDF piezoelectric membranes as pressure responsive element,But it since its sensitivity is low (piezoelectric charge coefficients only have 30pC/N), is usually only capable of extracting human body pulse frequency, precision is notIt is enough, cause the extraction to pulse wave to be distorted larger, it is difficult to carry out diagnosis by feeling the pulse monitoring.
Under normal conditions, the physical signs of individual event is not enough to make accurate judgement, electrocardio, arteries and veins to the health status of human bodyIt fights, the fusion of the information of the multidimensional physiological signals such as blood pressure, can more comprehensively reflect the health status of human body, improve disease inspectionThe accuracy of survey is of great significance for the daily monitoring of patient's clinical care and people at highest risk.Do not losing measurement accuracyUnder the premise of, the portability, multifunctionality and stability of medical monitoring device are improved, is the main target of the utility model.With the fast development in the fields such as flexible electronic, portable medical, the design of wearable sensor part and its health monitoring systemsExtensive concern is caused with exploitation.Wearable health monitoring systems acquire the physiology and fortune of human body using intelligence sensorDynamic parameter, to obtain advantageous information, to facilitate the movement and health control of wearer.Modern Transducer Technology is gradually towards intelligenceThe directions such as energyization, multifunction, miniaturization, flexibility, hommization are developed, and the scope of application of sensor is made to widen significantly.
The intelligent wearable device of detection heart rate/pulse currently on the market usually divides three kinds：One is photoelectricity transmission measurementsMethod, in principle for be exactly that sensor sends out light beam and beats the light for measuring reflection/transmission on the skin.Because blood is to specificThe light of wavelength has an absorption, and when each cardiac pumping, which all can largely be absorbed, and heartbeat is assured that with this.NoIt crosses the disadvantage is that power consumption is big, while can be by ambient light interference.The function of Intelligent bracelet or wrist-watch monitor heart rate at present on the marketMostly it is to use photoelectricity transmissometry.Still an alternative is that the method for test electrocardiosignal, the sensor of bracelet can lead toIt crosses and measures the electric signal of myocardial contraction to judge the heart rate situation of user, principle and electrocardiogram similar principles.The disadvantage is that circuitIt is more complicated, account for that PCB space is bigger, and easily by electromagnetic interference, while sensor must be close to skin, and placement location is relatively solidFixed, few bracelets use this measurement method.In addition to this, also vibration-type.Because each heartbeat can all cause bodyThe vibrations of body capture this vibrations by high-precision sensor, heartbeat can be obtained using signal processing.But it is existingSensor accuracy is inadequate, can not accurately measure skin deformation caused by pulse/heartbeat, and measurement result is very inaccurate.
Graphene has caused extensive concern and the state of whole world scientist with its superior electricity, calorifics, mechanical performanceThe huge research and development enthusiasm of border industrial circle.2013, Shi Ming universities of South Korea Kwon etc. using top board structure by pressure transmission effect,Propose a kind of improved deflocculated graphite alkene pressure sensor.2014, Irish scientist invented one kind using grapheneNew wearing sensor, graphene, which is imported in rubber, enhances electric conductivity, and designing can random variation sensor.In addition, graphiteAlkene nanometer sheet film temperature sensor and capacitance type touch sensor are also developed and are applied to electronic skin structure and sound in successionSound detects.But existing graphene sensor haves the shortcomings that precision is inadequate and manufacturing price is expensive.Tsinghua University inIn patent of invention CN201510259874 filed in 20 days Mays in 2015, a kind of graphene flexible sensor is disclosed, is being carriedWhile the deformability of high graphene-structured, enhancer resistance makes grapheme material generate deformation with the change rate of deformationOr there is sensitive response mechanism when being given a shock, significantly resistance variations can be generated, there is excellent deformability and higherResistance-strain sensitivity coefficient, can be used for a variety of precision vibrations, deformation measurement.And Tsinghua University was on October 13rd, 2015In the patent of invention CN2015106705759 of application, a kind of new method of two-dimension nano materials film preparation is disclosed, it canThe ultra-thin two-dimension nano material film of large-scale industrial production large area, such as graphene film.
In order to preferably detect physiological parameter, the utility model provides a kind of based on flexible sensor, especially graphiteThe integrated measuring multiple parameters wrist-watch of alkene sensor dresses high-precision Flexible graphene sensor application to current intelligenceIn equipment, to solve the problems, such as that the accuracy of detection of existing detection device is not high, it is complicated to make.
Specific to the watchcase of wrist-watch, it is used to measure the wrist-watch of physiological parameter in the prior art, is typically placed in sensorThe position that lower watchcase is contacted with wrist.Although this structure is easy to implement, is convenient for sensor interface engineering, its structure is single,The position of sensor is almost limited, so being not particularly suited for flexible sensor (such as graphene sensor) measures a cun passThe pulse at ruler position and the application scenario of other body parts parameter.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model proposes one kind being used for physiological parameter measurementWrist-watch watchcase.
One side according to the present utility model, it is proposed that a kind of watchcase for physiological parameter measurement, including upper watchcaseWith lower watchcase；There are two the table ears of fixed flexible strap on lower watchcase；Upper watchcase has the opening for making switch stretch out, USB is made to fillThe opening and flexible sensor is made to access the opening inside wrist-watch that power port is stretched out；Upper watchcase further includes instruction unit, is used to indicateThe information such as the measuring state of various physiological parameters, the working condition of wrist-watch, charged state.
Further, the watchcase is made by 3D printing.
Further, the instruction unit is transmittance section.
Further, the transmittance section enables the light of the LED light of internal circuit to penetrate watchcase, various for indicatingMeasuring state.
Further, the transmittance section is light-permeable thin-walled.
Further, the positioning support portion of circuit board and battery, the shape of the positioning support portion are equipped in the lower watchcaseIt is matched with circuit board.
Further, the upper watchcase and lower watchcase by multiple snap assembleds together with.
Further, the multiple buckle is distributed on the peripheral wall of watchcase and lower watchcase.
Further, it is equipped with switch knob extending sleeve on the upper watchcase.
Further, the upper watchcase and lower watchcase are open with USB.
Further, the lower watchcase offers ZIF sockets (zero-force connector socket) opening, the ZIF on watchbandRow wire terminal is connect across the opening with the ZIF sockets of the circuit board inside watchcase, to obtain the flexible biography being located on watchbandPhysiological signal detected by sensor.
Further, the watchband is the flexible PCB for being integrated with flexible sensor, lead and ZIF row wire terminals.
Further, the flexible sensor is graphene sensor.
Further, above-mentioned watchband can also be replaced by it is with ZIF row wire terminals, be integrated with all kinds of flexible sensingsThe watchband of device or other flexible structural members.
The utility model proposes the wrist-watch for physiological parameter measurement watchcase, compared with prior art have it is following excellentGesture：Sensor ZIF row wire terminals can be docked across watchcase with internal circuit, so that physiological parameter measurement wrist-watch was usedSensing station is no longer limited by the fixed position below wrist-watch, effectively increases the popularity of physiological parameter measurement and accurateProperty.
Specific implementation mode
It is described in detail with reference to attached drawing below with reference to the embodiments of the present invention.
As illustrated in fig. 1 and 2, it is used for the watchcase of the wrist-watch of physiological parameter measurement, can either be made by 3D printing, also may be usedTo be formed by mold injection.Watchcase main body includes upper watchcase 1 and lower watchcase 2, and the two passes through multiple watchcase peripheral walls that are distributed onBuckle 6 is combined, and circuit board 8 and rechargeable battery 16 is placed among upper watchcase 1 and lower watchcase 2, it is fixed to be equipped in lower watchcase 2Position support portion 9, for support circuit board 8 and rechargeable battery 16, and matches with the shape of circuit board 8 and rechargeable battery 16, electricityRoad plate 8 can be fixed in board support portion 9 to ensure the stabilization of circuit board 8；There are two fixed flexible straps on lower watchcase 2Table ear 3；Upper watchcase 1 has the opening 5 for making switch 4 stretch out；Switch knob extending sleeve 15 is housed in the opening 5, is opened with extendingIt closes handle and prevents external dust from entering；Further include instruction unit 18, is used to indicate the measuring state of various physiological parameters.
Sensor ZIF socket ports 7 are offered on lower watchcase 2, the ZIF winding displacements 11 on watchband 10 may pass through socket port 7, be connected toOn ZIF sockets 14 on circuit board 8, to allow circuit to obtain detected by the flexible sensor 12 on watchband 10Physiological signal.The flexible sensor 12 is graphene sensor, on the mounting portion that watchband 10 is pasted by conducting resinl, and is led toIt crosses lead and is connected to ZIF winding displacements 11.The flexible sensor 12 can detect a variety of lifes including heart rate, pulse, blood pressure etc.Manage parameter.
Instruction unit 18 is used to indicate the measuring state of various physiological parameters, is transmittance section, can be light transmission thin-walled, work as inspectionWhen measuring abnormal signal, the LED light on internal circuit board can show feux rouges；When detection signal is normal, on internal circuit boardLED light can show green light, and when the sensor self-test exception on watchband, the LED light on internal circuit board can show yellow light.According toThe state of sensor and circuit, LED light can also be by reddish yellow green equal respective different flashing times and frequency, to indicate moreInformation.
Upper watchcase 1 and lower watchcase 2 are equipped with USB and are open 13, to expose in watchcase MicroUSB sockets on circuit board 817.Rechargeable battery 16 in watchcase can pass through MicroUSB sockets 17, connection universal MicroUSB charging wires or charge dataLine realizes charging.
Although with reference to the utility model is exemplary embodiment described, it is to be understood that, term used is explanation and showsExample property, term and not restrictive.Since the utility model can be embodied in various forms without departing from the spirit of the inventionsOr essence, it should therefore be appreciated that above-described embodiment is not limited to any details above-mentioned, and should be defined by appended claimsWidely explained in spirit and scope, thus the whole variations fallen into claim or its equivalent scope and remodeling all should be withAttached claim is covered.