Portable cardiac signal acquiring system and use its ecg signal acquiring methodTechnical field
The present invention relates to a kind of ecg signal acquiring technology, particularly a kind of portable cardiac signal acquiring system and useIts ecg signal acquiring method.
Background technology
Electrocardiogram reflects human heart biological electricity discharge condition, and the mechanical movement that abnormal cardiac muscle electric discharge represents heart is also depositedCertain abnormal, therefore electrocardiograph is widely used in the clinical diagnosis of hospital, can low cost, be fast and accurately used for painstaking effortExamination, diagnosis and the postoperative, medication of pipe relevant disease are assessed.With the development of technology of Internet of things, electrocardiogram signal acquisition circuit is progressivelyProlong highly integrated, low-power consumption direction to develop, therefore all kinds of wearable electrocardiogram signal acquisition devices arise at the historic moment, and make electrocardiographicapparatus apparatus moreIt is be applied to daily life scene more, particularly for strenuous exercise when heart rate monitor in real time.It is but seen at present wearableEquipment is all only applicable to used aloned scene：
Such as the Wristwatch type electrocardio device disclosed in Publication No. WO2017084464A1 patent application, it is only capable of conductFragment signal gathers and needs both hands to be used cooperatively when defining use, and the application method limits this equipment and is not used to dynamicThe long-term acquisition of electrocardiosignal, effective sieving and diagnosis can not be played for intermittent arrhythmia cordis patient.
The pectoral girdle formula electrocardio device disclosed in Application No. CN201420769230.X, its gatherer process are strapped in for another exampleFront can not more become it and use posture, use range request testee accurately to wear pectoral girdle every time, and can not be engaged in strenuous exercise,To avoid pectoral girdle displacement from causing electrocardiosignal to deform；Especially for only with the of short duration ecg signal acquiring object of 30 to 60 seconds, oftenSecondary gatherer process is required for removing clothes wearing pectoral girdle, and use is cumbersome.
Therefore lacking a kind of portable cardiac signal pickup assembly, it can be suitably used for multiple different scenes of daily life, bothOf short duration ecg signal acquiring can be used for, and can to record for the long-range dynamic electrocardiogram of 24 hours, and subtracted as far as possible using processFew interference to testee.Simultaneously for the crowd such as after cardiac surgery follow-up and institute's externally applied drug assessment, it is necessary to which timing detection heart rate becomesChange, therefore one kind is provided and minimizes, is easy to carry, easy to use, while the portable cardiac of compatible multiple different usage scenariosSignal pickup assembly is significantly.
The content of the invention
Present invention aims at a kind of all-sealed portable cardiac signal pickup assembly is provided, to solve most of heartElectrical signal collection device can not be compatible with the problem of different application scene, such as strenuous exercise, water, daily PE etc.；Solve the problems, such as portable so that whole device is more compact, facilitates electrocardiogram signal acquisition device to carry with simultaneously long-term use of；SolveExisting portable cardiac signal pickup assembly can not be rapidly completed section type ecg signal acquiring and 24 hours long route cardiograms are believedNumber collection the problem of.
To achieve these goals, the present invention adopts the following technical scheme that：
The portable cardiac signal acquiring system of the present invention, it includes：Electrocardiogram signal acquisition device；
The electrocardiogram signal acquisition device includes master controller, communication module and ecg signal acquiring module；Master controllerControl the work of communication module and ecg signal acquiring module；Communication module is used to communicate with portable terminal；Electrocardiosignal is adoptedCollect the collection that module is used for electrocardiosignal；
The ecg signal acquiring module is connected with left electrocardioelectrode, right electrocardioelectrode；
The electrocardiogram signal acquisition device includes shell；Shell is made up of flexible waterproof material, wraps up the electrocardioSignal pickup assembly, the left electrocardioelectrode, right electrocardioelectrode is set to be exposed to outside；
The electrocardiogram signal acquisition device can carry out section type ecg signal acquiring or long formula ecg signal acquiring.
Preferably, magnetic suction block is further provided with the shell；The portable cardiac signal acquiring system enters oneStep includes collet, and collet by the ferrous material that the magnetic suction block is adsorbed by can be made；Collet can be by being adhesively fixed to justThe behind of formula terminal is taken, thus the electrocardiogram signal acquisition device can be fixed to portable terminal by being adsorbed onto on colletOn.
Preferably, the circuit of the electrocardiogram signal acquisition device uses QFN ultra-miniature package chips；The communication module isBluetooth module；The bluetooth module integrates with the master controller；The bluetooth module uses small size ceramic antennaAs Bluetooth antenna；The ecg signal acquiring module uses small package electrocardiogram acquisition sensor.
Preferably, the magnetic suction block include three, respectively positioned at the left side of electrocardiogram signal acquisition device, right side and onSide；The material of the magnetic suction block is rubidium iron boron.
Preferably, the portable terminal controls electrocardiogram signal acquisition device to carry out the section type ecg signal acquiringOr long formula ecg signal acquiring.
Preferably, the flexible material is silicon rubber.
Preferably, the electrocardiogram signal acquisition device also includes charging module, and the charging module is connected with charging column；InstituteState charging module to be wrapped in the housing, the charging column is exposed to outside.
Preferably, the shell of the electrocardiogram signal acquisition device carries out one-shot forming using silicon rubber mould and formed, fromAnd the electrocardiogram signal acquisition device is set to possess IP67 safeguard functions.
Ecg signal acquiring method is carried out using the ECG Signal Sampling System of the present invention, it includes：
In section type ecg signal acquiring,
Electrocardiogram signal acquisition device is waken up by portable terminal and enters section type ecg signal acquiring state；Then, makeUser's both hands contact left and right electrocardioelectrode naturally can carry out ecg signal acquiring；After this collection is completed, portable terminalPrompting collection is completed, and this operation terminates；
In long formula ecg signal acquiring,
The electrocardiogram signal acquisition device is fixed to by smooth position on the left of human chest by viscose glue so that left and right ventriclesElectrode stably contacts with user；Then, this ecg signal acquiring is started by portable terminal；When collection is enoughAfter data, portable terminal prompting collection is completed, and this operation terminates.
Preferably, a length of 30 seconds or 60 seconds during the collection of the section type ecg signal acquiring, the long formula electrocardio letterNumber collection collection when a length of 24 hours.
The electrocardiogram signal acquisition device sampling silicon rubber casings of the present invention are packaged, and only expose electrocardioelectrode and chargingPost, therefore a variety of different scenes can be applied to and possess water proof and dust proof performance.The electrocardiogram signal acquisition device of the present invention can be withEasily be pasted onto on user's body or by the collet magnetic absorption of irony on portable devices, being capable of compatible fragmentFormula gathers and the collection of long formula, and also very convenient in the switching of two kinds of acquisition modes.
Brief description of the drawings
Fig. 1 is the schematic diagram that electrocardiogram signal acquisition device of the present invention is placed in portable terminal behind；
Fig. 2 is the internal structure schematic diagram of electrocardiogram signal acquisition device of the present invention；
Fig. 3 is the circuit theory diagrams of electrocardiogram signal acquisition device of the present invention；
Fig. 4 is the front elevation of occupation mode of the present invention；
Fig. 5 is the back view of occupation mode of the present invention；
Fig. 6 is the required double faced adhesive tape shearing example of the present invention；
Fig. 7 is the human body paste position schematic diagram that the present invention uses process.
Embodiment
Below, with reference to accompanying drawing, the present invention is described in detail.
As shown in figure 1, the portable cardiac signal acquiring system of the present invention includes collet 2 and electrocardiogram signal acquisition device masterBody 3.Wherein collet 2 is used to be pasted onto the back of portable terminal 1 by double faced adhesive tape, and electrocardiogram signal acquisition device main body 3 passes throughMagnetic suck mode is fixed on collet 2.The wherein overall structure of collet 2 is made using metallic iron；The main body of electrocardiogram signal acquisition device 3Shell is made using silicon rubber.
The inside result of electrocardiogram signal acquisition device main body 3 is as shown in Figure 2.Wherein side Attraction block 11, head Attraction block 14,Afterbody Attraction block 18 is made using NdFeB material, electrocardiogram signal acquisition device main body is had magnetic and can be adsorbed in colletOn；Left contact electrode 13 is welded on the circuit 19 of electrocardiogram signal acquisition device with the right electrode 17 that contacts, when contact human body skinWhen can carry out the collection of electrocardiosignal；4 charging copper posts 15 are welded in electrocardiogram signal acquisition circuit 19, for being filled to battery 16Electricity；Battery 16 is powered for the electrocardiogram signal acquisition device main body.The main body is integrally made using silicon rubber, battery and electrocardiosignalAcquisition Circuit 19 is wrapped in silicon rubber by the mould molding technology of silicon rubber, only exposes left contact electrode 13, right contact electricityPole 17, the area for the copper post 15 that charges, make structure integrally possess IP67 water resistance.
To make electrocardiogram signal acquisition device agent structure more exquisite, electrocardiogram signal acquisition circuit is used with TI'sHigh integrated circuit based on ADS1191IRSMR chips.As shown in figure 3, chip internal is integrated with signal filtering, signal amplifies,Analog-digital conversion function, chip power part only need a 3.3V power supply, and the input port of each power supply only needs a filtered electricalHold so that chip periphery only needs few circuit and component that electrocardiogram acquisition module can be achieved.Right leg drive part is with oneIndividual resistant series are on an electrode so that only need two input electrodes that electrocardiogram acquisition can be achieved, make the device in volumeUpper further diminution.The communication selection between MCU is directly connected without any using the SPI interface of high speed with MCU in additionElectronic component, connect the circuit between electrocardiogram acquisition module and MCU more flexible and simple.Independent number is distinguished on power supplyWord power supply (VDDD) and analog power (VADD) so that the signal collected is more pure and stably.
Embodiment 1
Electrocardiogram signal acquisition device passed through portable terminal first as the section type ecg signal acquiring of 30 seconds or 60 secondsWake up electrocardiogram signal acquisition device and enter section type ecg signal acquiring state.User's both hands hold in both hands portable terminal as shown in Figure IVEnd, then its back side will be in that both hands finger contacts the left and right electrode of electrocardiogram signal acquisition device naturally as shown in Figure 5, you can carry outThe collection of electrocardiosignal.After this ecg signal acquiring is completed, portable terminal prompting collection is completed, and this operation terminates.
Embodiment 2
Electrocardiogram signal acquisition device as 24 hours long route cardiogram recorder in use, need a waterproof double faced adhesive tapePatch, and as shown in figure 6, two circular cavities are cut among water-proof adhesive plaster, being attached on electrocardiogram signal acquisition device has exposed electricityThe one side of pole, two electrodes of electrocardiogram signal acquisition device are made not covered by double faced adhesive tape, the process of stickup will make double faced adhesive tape and dressThe whole fitting of horizontalization, and extrude the air of fitting part.
After completing this survey stickup, as shown in fig. 7, the opposite side of double faced adhesive tape is pasted onto smooth position on the left of human chest,And extrude the air with skin attachement part.It smooth can be only bonded in the both sides for ensureing double faced adhesive tape and the air gap is not presentWhen, two end electrodes and the skin of electrocardiogram signal acquisition device formed it is in sealing contact, be the device suitable for air, it is underwater etc. noSame scene.
After the human body fixation for completing electrocardiogram signal acquisition device, this electrocardiosignal of operation beginning on portable terminalRecord.After acquisition and recording enough data, portable terminal prompts this ecg signal acquiring, then extracts ecg signal acquiringDevice, double faced adhesive tape is abandoned, and the main part of electrocardiogram signal acquisition device is replaced, be adsorbed onto on collet.
In effect, the sheathing material of electrocardiogram signal acquisition device of the invention is made using silicon rubber, and its charging module is adoptedWith contact copper post, the contact copper post is welded on the electrocardiogram signal acquisition device；Its left and right electrocardioelectrode uses 316Stainless steel metal piece, the left and right electrocardio bottom are welded in the electrocardiogram signal acquisition circuit；Further, electrocardiosignal is adoptedAcquisition means shell process, described electrocardiogram signal acquisition circuit and its battery are integrally placed with being carried out in silicon rubber mouldOne-shot forming, only exposes the charging copper post and left and right electrocardioelectrode, and the processing mode realizes electrocardiogram signal acquisition device entiretyPossess IP67 safeguard functions, can be suitably used for the different scenes of daily life.Silicon rubber can also use other flexible waterproof materialsReplace, such as plastics, General Purpose Rubber.Copper post cylinder can also replace made of other conductive materials, such as iron prop, steel columnDeng.
Selected electronic component is QFN ultra-miniature package chips, and master controller have selected Cypress public affairs on hardwareThe CY8C4247 microcontrollers of department, the MCU are internally integrated bluetooth module, plus the outside ceramic antenna for selecting small size as blueThe antenna of tooth so that volume is reduced.Further acquisition module uses TI ADS1191IRSMR small package electrocardiogram acquisitionsSensor, sensor external only need few component (only needing power supply and filter capacitor) that electrocardiogram acquisition mould can be achievedBlock.Further CY8C4247 is that the bluetooth module version inside controller is 4.0, is realized when long-time gathers electrocardiosignalBy power consumption control in very low level, solve the problems, such as that electricity occurs insufficient under long-time measuring state.
Combined type magnetic absorption type electrocardiogram signal acquisition device contains electrocardiogram signal acquisition device and its collet, the electrocardiosignalHarvester head, afterbody and the unilateral metal derby for being provided with NdFeB material, the collet overall structure are made using metallic iron,Electrocardiogram signal acquisition device and its collet is set to possess magnetic adsorption capacity on correspondence position；The further collet configurationReverse side posts double faced adhesive tape, collet is fixedly connected with the back side of other portable terminals.
Using electrocardiogram signal acquisition device as the section type ecg signal acquiring of 30 seconds or 60 seconds, by as illustrated, twoHold head and the afterbody of portable terminal in hands, two hand fingers contact described left and right electrocardioelectrode naturally, form one completelyEcg signal acquiring loop, carry out an ecg signal acquiring.It regard signal harvester as the long route cardiogram of 24 hoursRecorder in use, as illustrated, by sticking double faced adhesive tape on the left of human body front more smooth position, ensure left and right electrode withThe complete fitting of human body skin.As human hair is more vigorous at electrode contact surface, preferably avoids the vigorous position of hair or reject thisLocate hair.As at electrode contact surface human body skin more dry, wiped after preferably being moistened with physiological saline the globule again enter exerciseWith.
In the application, portable terminal can be the equipment such as smart mobile phone, tablet personal computer, game machine, video-audio playing device.
It is above the preferred forms of the present invention, according to present disclosure, those of ordinary skill in the art's energyIt is enough obviously to expect some identical alternative solutions, protection scope of the present invention all should be fallen into.