Wireless wrist formula cardiovascular system monitor equipment
The present invention relates to a kind of cardiovascular system monitor equipment, be particularly related to a kind of wireless wrist formula cardiovascular system monitor equipment (being called for short " equipment "), can measure the electrocardio relevant with showing cardiovascular system, blood pressure, blood oxygen saturation and body temperature parameter simultaneously, and measurement result can be carried out to wireless transmission.
The disease of current cardiovascular system aspect is seriously perplexing the mankind, conventionally all needs professional plurality of devices or multi-parameter monitor to realize to the detection and diagnosis of this symptom.Because current multi-parameter monitoring equipment volume is larger, be only applicable to bedside monitoring, limit custodial person's normal activity.And portable custodial care facility majority all can only be monitored a certain physiological parameter, as electrocardiogram, blood pressure, blood oxygen saturation etc., cannot comprehensive and accurate cardiovascular patient be guarded.
Summary of the invention
Goal of the invention: the problem and shortage existing for above-mentioned prior art, the object of this invention is to provide a kind of wireless wrist formula cardiovascular system monitor equipment, adopt wrist formula wearing mode, be convenient for carrying and use, ordinary people can be voluntarily the physiological parameter such as synchro measure blood pressure, electrocardiogram and heart rate, blood oxygen saturation, body temperature side by side exactly.
Technical scheme: for achieving the above object, the technical solution used in the present invention is a kind of wireless wrist formula cardiovascular system monitor equipment, comprises housing, wrist strap, multi-physiological-parameter measurement module, A/D data acquisition module, microprocessor module, display module, memory module and wireless transport module composition.Described multi-physiological-parameter measurement module comprises electrocardiosignal measurement module, blood pressure measurement module, oxygen saturation measurement module and measurement of bldy temperature module composition.Described multi-physiological-parameter measurement module connects microprocessor module by A/D data acquisition module.Described microprocessor module also connects display module, memory module and wireless transport module, analysis result is shown on the display module being positioned on housing, institute's image data and analysis result can be stored in memory module, and can transfer to server end by wireless transport module.Described housing is fixed on wrist strap.Other module is all placed in the inside of housing.
Described electrocardiosignal measurement module comprises electrocardioelectrode group and electrocardiosignal filtering and amplifying circuit, described electrocardioelectrode group comprises the first detecting electrode of being fixed on housing upper surface and surperficial the second detecting electrode and the drive electrode that are fixed on wrist strap and contact with wrist, described the first detecting electrode and the second detecting electrode are responded to respectively electrocardiosignal, and connect A/D data acquisition module by electrocardiosignal filtering and amplifying circuit.Described drive electrode connects the drive circuit of described electrocardiosignal filtering and amplifying circuit.
Described blood pressure measurement module, oxygen saturation measurement module and measurement of bldy temperature module are also connected A/D data acquisition module.Described A/D data acquisition module is converted to digital signal by the multi-physiological-parameter receiving and enters microprocessor module processing, and described microprocessor module shows multi-physiological-parameter measurement result and analysis result on the display module of upper surface that is positioned at housing.Microprocessor module is simultaneously for the measuring process of electrocardio measurement module and blood pressure measurement module provides control signal.
Preferably, described electrocardioelectrode group also comprises and is fixed on the surperficial drive electrode that wrist strap contacts with wrist, and described drive electrode connects the drive circuit of described electrocardiosignal filtering and amplifying circuit.Described drive electrode can parallelly be placed with the second detecting electrode.
Preferably, also comprise the memory module and the wireless transport module that connect described microprocessor module.
Preferably, also comprise the key-press module that connects described microprocessor module, described key-press module is positioned at the upper surface of housing.More preferably, described key-press module comprises for the button of switchgear, for starting the button of measurement, for the button that stops measuring, for the button of stored record and for the button on setting-up time and date.The functions such as the startup of user by key-press module control appliance, storage, playback.
Preferably, the spacing between described drive electrode and the second detecting electrode is fixed.
Preferably, oxygen saturation measurement uses noinvasive finger-clipped probe, and measurement of bldy temperature uses thermo-sensitive resistor.
Preferably, described wrist strap is connected by buckle with housing, makes both be difficult for producing displacement, guarantees the accuracy of measurement result.
Preferably, described display module is LCDs.
Beneficial effect: the integrated electrocardio measurement of the present invention, blood pressure measurement, oxygen saturation measurement and body-temperature measuring function, for cardiovascular disease diagnosis and daily monitoring provide more comprehensively information; Adopted novel wrist formula electrocardio measuring technique, measured the disposable electrode sheet or the electrode holder that need without ordinary electrocardiogram, user measures convenient, not only accurately but also easy to carry; Adopted wireless data transmission technology, can be when detecting data and fructufy be transferred to server end, be conducive to concentrate monitoring, save medical resources; Multi-physiological-parameter is measured shared data acquisition module, signal processing module, display module and memory module etc., has improved the integrated level of system, has reduced production cost and user cost.
Accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present invention;
Fig. 2 is device structure schematic diagram of the present invention;
Fig. 3 is electrocardiosignal measurement module schematic diagram of the present invention;
Fig. 4 is blood pressure measurement module principle figure of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
As depicted in figs. 1 and 2, the wireless wrist formula of the present invention cardiovascular system monitor equipment comprises electrocardiosignal measurement module 101, blood pressure measurement module 102, oxygen saturation measurement module 108, measurement of bldy temperature module 109, A/D data acquisition module 103, microprocessor module 104, memory module 105, wireless transport module, display module 106 and key-press module 107.Multi-physiological-parameter measurement function shares A/D data acquisition module 103, microprocessor module 104, memory module 105, wireless transport module, display module 106 and key-press module 107; Electrocardiosignal measurement module 101, blood pressure measurement module 102, oxygen saturation measurement module 108 and measurement of bldy temperature module 109 are connected to respectively A/D data acquisition module 103, multi-physiological-parameter is converted to digital signal through A/D data acquisition module 103 and enters microprocessor module 104, analyze by respective algorithms, on display module 106, show; Microprocessor module 104 carries out signal analysis and processing and for the measuring process of multi-physiological-parameter provides control signal, the functions such as the startup of user by key-press module 107 control appliances, storage, playback.
Electrocardiosignal measurement module comprises electrocardioelectrode group and electrocardiosignal filtering and amplifying circuit (removing three electrodes and A/D data acquisition module 103 parts in Fig. 3), electrocardioelectrode group is made up of three electrodes, the first detecting electrode 201 is fixed on housing 204 upper surfaces, the second detecting electrode 202 is fixed on drive electrode 203 surface that wrist strap 205 contacts with wrist, and parallel placement also keeps at a certain distance away; Display module 106 and key-press module 107 are positioned at the upper surface of housing 204; Other modules of equipment are all placed in the inside of housing 204, do not illustrate at Fig. 2; Housing 204 is fixed on wrist strap 205 by buckle (not shown).Obtain faint electrocardiosignal from the first detecting electrode 201, the second detecting electrode 202 for human body wrist, by electrocardiosignal filtering and amplifying circuit, it is amplified and Filtering Processing, the digital signal after A/D data acquisition module 103 (using the A/D translation function that microprocessor module carries to realize in this example) conversion is delivered to microprocessor module 104.In this example, microprocessor module 104 adopts the MSP430F5529 of TI company, and data acquisition, data are preserved the functions such as (memory function that uses microprocessor internal) and data analysis and symptom prompting.
As shown in Figure 3, the first detecting electrode 201 and the second detecting electrode 202 are connected to the differential input end of preamplifier state 302 through input protection circuit 301, by step low-pass 303 and 304 filtering of 50Hz wave trap, then amplify 305 access A/D data acquisition modules 103 through rear class; Drive circuit 307 takes out signal from preamplifier state 302, and through the anti-phase drive electrode 302 that is added to, its effect is to offset a part of interfering signal by negative feedback; Preamplifier state 302 (10 times) adopts high accuracy, low-power consumption instrument amplifier AD620, common amplifier chip LM358 forms step low-pass 303,50Hz wave trap 304 and rear class and amplifies 305 (100 times), and the amplitude of obtaining is the electrocardiosignal of 1V left and right; Use LM358 composition negative feedback drive circuit 307 and utilize negative feedback mechanism further to suppress 50Hz power frequency by drive electrode 203 and disturb.Electrocardiosignal filtering and amplifying circuit, simultaneously with QRS wave shaping circuit 308, can accurately obtain R ripple position.That positive-negative polarity is inverted relation because equipment is worn on left hand the wrist ecg wave form producing and the ecg wave form that is worn on the generation of right hand wrist, equipment can be identified automatically by the positive-negative polarity of QRS wave group testing circuit 308 output waveforms in electrocardiosignal filtering and amplifying circuit, and is adjusted into positive polarity in final ecg wave form demonstration and R ripple testing process.
Blood pressure measurement in the present invention adopts oscillographic method indirect measurement of blood pressure.In measuring process, controlling air pump is cuff inflating pressure, and the variation of vibration occurs while detecting blood flow with atmospheric pressure sensor simultaneously, differentiates blood pressure by the relation of setting up systolic pressure, diastolic pressure, mean pressure and oversleeve pressure oscillations ripple.Adopt in the present invention existing universal electric blood pressure measurement technology and scheme.As shown in Figure 4, microprocessor module 104 drives servo pressurization air pump 404 at the uniform velocity to inflate to the air bag 401 in wrist strap 205 by gas passage 402 by air pump drive circuit 405 when measurement; In gas replenishment process, the air pressure in air bag 401 is converted to the signal of telecommunication by atmospheric pressure sensor 403, then be converted to digital signal input microprocessor module 104 through A/D data acquisition module 103 and analyze; After measurement finishes, microprocessor module 104 is controlled electronics rapid escape valve 406 by air valve drive circuit 407 gas in air bag 401 is discharged fast, in order to measure next time.
Oxygen saturation measurement uses noinvasive finger-clipped probe 207, and measurement of bldy temperature uses thermo-sensitive resistor 206.Display module 106 uses LCDs, can show the information such as ecg wave form, instantaneous heart rate, pressure value; Memory module 105 is used the memory space of MSP430F5529 inside, can store surveying record for playback and analysis; Key-press module 107 comprises 5 buttons, is respectively: facility switching, startup are measured, stopped measurement, stored record and Time of Day and set.