CN104257366B - A kind of wearable physiology sign detecting sensor, preparation method and Monitoring systems thereof - Google Patents
A kind of wearable physiology sign detecting sensor, preparation method and Monitoring systems thereof Download PDFInfo
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- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
- A61B5/0022—Monitoring a patient using a global network, e.g. telephone networks, internet
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- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
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- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6832—Means for maintaining contact with the body using adhesives
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Abstract
The present invention relates to physiology monitoring field, disclose a kind of wearable physiology sign detecting sensor, for monitor heart rate and respiratory rate, comprise fabric object, supporting layer, sensitive material, electrode layer and protective layer; Wherein, sensitive material is made up of three-dimension hole shape nano sensitive material; protective layer and supporting layer are made up of flexible macromolecule polymkeric substance and have biocompatibility; protective layer and supporting layer wrap up sensitive material jointly, the invention also discloses the preparation method of a kind of wearable physiology sign detecting sensor and the Monitoring systems based on wearable physiology sign detecting sensor. The frivolous softness of the sensor of the present invention, various shape can be processed to, can attach, be worn on skin surface, wearable physiology sign detecting sensor is integrated on the fabric with chest heartbeat area contact and just can gather chest heart rate and respiratory rate data, effectively monitor heartbeat message by the present invention.
Description
Technical field
The present invention relates to physiology monitoring field, particularly relate to a kind of wearable physiology sign detecting sensor, preparation method and Monitoring systems thereof.
Background technology
Heart rate and respiratory rate are one of important physiology physical sign parameters of human body, it carries out Real-Time Monitoring is the physiological well-being information that user provides, and has important value by health evaluating and disease (such as the cardiovascular system diseases) primary prevention of user.
The instrument of medical monitoring heart rate traditional at present is a lot, common are the detection device based on types such as pressure transmitter, photo-sensor, capacity transducer and electroacoustic sensors. Ancient Chinese examines disconnected palmic rate by diagnosis by feeling the pulse, though method is simple and convenient, but whether diagnostic result correctly depends on the experience of doctor, it is difficult to objective quantification; Infrared method be cause subcutaneous infrared reflectance to occur based on arterial blood so that " pulse " mode flows elementary errors does not detect heart rate, but this method can by skin effects and cause detected result error; Powerful based on electrocardio patient monitor that is embedded and DSP, but because chip price is expensive, using method and electrode lay all very professionalization and be difficult to realize popular, convenientization. Therefore, people urgently wish to develop a not only economical and practical but also facilitate the novel heart rate and respiratory rate monitor monitored.
Also some are had to report for monitoring the wearable medical fabrics of physiological signal both at home and abroad at present, such as " the life shirt " of the exploitation of U.S. VivoMetrics company, the breathing situation of wearer and the position chanP of record human body can be reflected, but its not good, complicated operation of wearing property, be not suitable for using in daily life and work; The intelligent sensing device of fiber or form of yarns is combined monitoring breathing, body temperature by MiliorofPrado company of Italy with fabric technology etc., but price height and the comfort dressed in daily life are not good, affect its practicality; The T-shirt with sensing function of Germany's FraunhoferIZM exploitation can realize the detection to wearer's cardiac electrophysiology parameter, but long-term and skin contact can cause skin ulceration. In prior art, other are for the problems such as instrument exists complicated operation, cost height equally, carries inconvenience, can not meet daily monitoring requirements, poor biocompatibility, wearing are uncomfortable of heart rate and respiratory rate detection.
The key of novel heart rate and respiratory rate Monitoring techniques is the preparation of sensor, investigation finds, at present for gathering the wearable electronic fabric of heart rate and respiratory rate and little by the analysis of chest heartbeat signal being judged the professional Wearable fabric of Human Physiology health, and it is daily at any time with facilitating almost not having of monitoring requirements to meet the general population, therefore develop a intellectuality, popular, scientific and convenientization heart rate and respiratory rate monitoring tool seem particularly important.
Summary of the invention
For overcoming the deficiencies in the prior art, the present invention seeks to: a kind of wearable physiology sign detecting sensor is provided, wearable physiology sign detecting sensor is integrated on the fabric contacted with chest heartbeat and just can gather heartbeat data and respiratory rate data.
In order to the technical problem solved in background technology, the present invention provides a kind of wearable physiology sign detecting sensor, for monitor heart rate and respiratory rate, comprises fabric object; Supporting layer, it is formed in the region touching chest heartbeat on described fabric object; Sensitive material, it is formed at the upper surface of described supporting layer; Electrode layer, comprises at least two electrodes drawn from sensitive material or sensitive material surface; And protective layer, it is formed at the part that the upper surface of described sensitive material or the upper surface of sensitive material and electrode layer are positioned at the upper surface of sensitive material; Wherein, described sensitive material is made up of three-dimension hole shape nano sensitive material, and described protective layer and supporting layer are made up of flexible macromolecule polymkeric substance and have biocompatibility, and described protective layer and supporting layer wrap up described sensitive material jointly.
The size in the hole of the three-dimension hole shape nano sensitive material of described sensitive material is 0.2-20 ��m, and the gap between Kong Yukong is 10-200 ��m, and described sensitive material is prepared by following step:
S1, carbon material and volatile solvent carry out supersound process 30��60min for 1:1��1:3 after mixing in mass ratio, obtain slurry mixture;
S2, to add in slurry mixture be the flexible macromolecule polymkeric substance of 1:1��1:6 with carbon material mass ratio, after stirring mixture of viscous form;
S3, mixture of viscous form is coated on supporting layer, then it is heating and curing at 70��80 DEG C, thus obtained described sensitive material.
The present invention is referred to one or more the combination that carbon material is selected from Graphene, redox graphene, graphene oxide, carbon nanotube; Described volatile organic solvent is one or more the combination in ethanol, methylene dichloride, ethyl acetate, acetone, tetracol phenixin; Described flexible macromolecule polymkeric substance is polydimethylsiloxane (PDMS), ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate or polyimide or polyethylene.
One end that described electrode leans out sensitive material does not contact with protective layer with described supporting layer, or, one end that described electrode leans out sensitive material connects wireless transmission device and described electrode and wireless transmission device is all wrapped up jointly by described supporting layer and protective layer.
The thickness range of described supporting layer is 10-150 ��m, described supporting layer is PDMS film, or the flexible macromolecule polymkeric substance of supporting layer is the one in ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene; Described protective layer is thickness range is the PDMS film of 10-50 ��m, or for thickness range be polyethylene (PE) film or the ethylene-vinyl acetate copolymer film of 10-50 ��m; Described electrode comprises conduction non-woven fabrics or Copper Foil.
Present invention also offers the preparation method of a kind of wearable physiology sign detecting sensor, described wearable physiology sign detecting sensor is for monitoring chest heartbeat, comprise the following steps: S1, the region touching chest heartbeat on fabric object are coated with one layer of flexible macromolecule polymkeric substance and form fexible film, are supporting layer; S2, on described supporting layer be coated with one layer of three-dimension hole shape nano sensitive material, obtain sensitive material; S3, extraction at least two electrodes, sensitive material described in the end thereof contacts of described electrode, the other end leans out described sensitive material; S4, it is coated with one layer of flexible macromolecule polymkeric substance on described sensitive material surface, is formed and cover described sensitive material and jointly wrap up the protective layer of described sensitive material with described supporting layer.
The thickness range of the supporting layer in step S1 is 10-150 ��m, supporting layer is PDMS film, or the flexible macromolecule polymkeric substance of supporting layer be in ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene any one or multiple; Protective layer in step S4 is thickness range is the PDMS film of 10-50 ��m, or for thickness range be PE film or the ethylene-vinyl acetate copolymer film of 10-50 ��m.
In step S3, the material of electrode comprises conduction non-woven fabrics or Copper Foil, or, the material of described electrode can also be one or more combinations in gold, platinum, nickel, silver, indium, carbon nanotube, Graphene or nano silver wire; The lead-out mode of electrode is for pasting, print or physics cutting.
Present invention also offers a kind of Monitoring systems based on above-mentioned wearable physiology sign detecting sensor, comprise with lower module:
Signal acquisition module, it comprises wearable physiology sign detecting sensor as above, for gathering human heartbeat's variable signal; Analog to digital conversion module, is converted to numerary signal for signal signal acquisition module collected; Signal processing module, for the treatment of, analyze the numerary signal that obtains of analog to digital conversion module, and draw monitoring analysis result; Display module, for showing the monitoring analysis result that described signal processing module exports.
Described Monitoring systems also comprises radio communication module, and it is mutual for realizing the transmission of signal between described analog to digital conversion module and signal processing module, or simultaneously mutual for realizing the transmission of signal between described signal acquisition module and analog to digital conversion module.
Described signal processing module and display module composite software are also loaded into client terminal, and described signal processing module also has the function deriving described monitoring analysis result.
The principle of the wearable physiology sign detecting sensor of the present invention 1. adopts three-dimension hole shape nano material to prepare the sensitive material of sensor, it is possible to chest heartbeat fluctuation signal detected sensitively; 2. fabric object is by intersecting by tiny soft and long thing, around the flat film block object that knot or bonding are formed, supporting layer and protective layer all have biocompatibility, and supporting layer can be fitted on fabric object preferably, do not produce side effect when protective layer contact skin; 3. supporting layer and protective layer all adopt flexible macromolecule polymkeric substance, and sensitive material is carried out protectiveness parcel, make sensitive material can not be damaged along with waterproof when fabric washing; 4. the supporting layer area of described sensor is minimum can accomplish 0.1mm2, described sensor can accomplish 0.01mm the thickness of fabric object projection is minimum, and described fabric object dresses the impression that can not produce to be unfavorable for daily activity with it; 5. wearable physiology sign detecting sensor comprises the sensitive material of some array arrangements, strengthens the detection sensitivity of wearable physiology sign detecting sensor.
When the principle based on the Monitoring systems of described wearable physiology sign detecting sensor of the present invention 1. contacts fabric, wearable physiology sign detecting sensor can be detected the signal of chest heartbeat and be exported as electronic signals by sensor; 2. electrical signal by after analog to digital conversion module by carry out after electrical signal amplification, filtering, modulation A/D conversion become numerary signal; 3. numerary signal by, after signal processing resume module, showing the monitoring analysis result of chest heartbeat, such as integrated informations such as waveform, wave amplitude, velocity of wave and cycles that heart rate and respiratory rate ripple present on display module; 4. between analog to digital conversion module and signal processing module, or it is connected transmission signal by radio communication module or wired mode between signal acquisition module with analog to digital conversion module; If 5. carrying out Signal transmissions by radio communication module between signal acquisition module and analog to digital conversion module, then the electrode of wearable physiology sign detecting sensor does not contact one end connection wireless transmission device of sensitive material, and described wireless transmission device is together wrapped in supporting layer and protective layer; If being 6. connected by wired mode between signal acquisition module with analog to digital conversion module and carrying out Signal transmissions, then described signal processing module and sensor are together integrated on fabric.
Adopt technique scheme, the present invention has following useful effect: 1. in the present invention, wearable physiology sign detecting sensor volume is small, it is possible to is processed to various shape, can attach, be worn on skin surface, easy to use and for masses can accept, do not affect daily activity; 2. the sensitive material of sensor is by flexible macromolecule polymer wrapped, and waterproof is anti-extrusion; 3. this Monitoring systems be lightly easily with, real-time good, when human body is normally movable, timely can feed back chest heartbeat inspecting data and display analysis result objectively, thus monitor physiology sign more easily.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the present invention, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the wearable physiology sign detecting sensor that the embodiment of the present invention provides;
Fig. 2 is the structural representation that the wearable physiology sign detecting sensor that the embodiment of the present invention provides is attached to underclothes chest heartbeat position;
Fig. 3 is the system chart of the Monitoring systems based on described wearable physiology sign detecting sensor that the embodiment of the present invention one, three provides;
Fig. 4 is the system chart of the Monitoring systems based on described wearable physiology sign detecting sensor that the embodiment of the present invention two provides.
In figure, Reference numeral corresponds to: 1-protective layer, 2-electrode, 3-sensitive material, 4-supporting layer, 5-fabric object, 51-underclothes, the wearable physiology sign detecting sensor of 6-.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of protection of the invention.
Embodiment one:
Fig. 2 is attached to the structural representation of heartbeat corresponding zone, underclothes chest for wearable physiology sign detecting sensor that the embodiment of the present invention provides, Fig. 1 is the structural representation of wearable physiology sign detecting sensor 6 in Fig. 2, figure sees by can know, the wearable physiology sign detecting sensor 6 of the present invention, for monitor heart rate and respiratory rate, comprising: fabric object 5; Supporting layer 4, it is formed in the region contacting chest heartbeat on described fabric object 5; Sensitive material 3, it is formed at the upper surface of described supporting layer 4; Electrode layer, comprises at least two electrodes drawn from sensitive material 3 or sensitive material 3 surface; And protective layer 1, it is formed at the part that the upper surface of described sensitive material 3 or the upper surface of sensitive material 3 and electrode layer are positioned at the upper surface of sensitive material 3; Wherein, described sensitive material 3 is made up of three-dimension hole shape nano sensitive material, and described protective layer 1 is made up of flexible macromolecule polymkeric substance with supporting layer 4 and has biocompatibility, and described protective layer 1 wraps up described sensitive material 3 jointly with supporting layer 4.
Wherein, described fabric object 5 be underclothes just to the position in chest, supporting layer 4 is formed at clothing and is through at human contact in the region of chest heartbeat.
Preferably, the three-dimension hole shape nano sensitive material of described sensitive material has 0.2-20 ��m of hole not of uniform size, and the gap between Kong Yukong is 10-200 ��m, and described sensitive material 3 is prepared by following step:
S1, redox graphene and ethanol carry out supersound process 30��60min for 1:1��1:3 after mixing in mass ratio, obtain slurry mixture;
S2, to add with redox graphene mass ratio in slurry mixture be the PDMS of 1:1��1:6, after stirring mixture of viscous form;
S3, mixture of viscous form is coated on supporting layer 4, then it is heating and curing at 70��80 DEG C, thus obtained described sensitive material 3.
One end that described electrode 2 leans out sensitive material 3 does not contact with protective layer 1 with described supporting layer 4; electrode 2 is flexible electrode, and one end that electrode 2 leans out sensitive material 3 is drawn and is connected to be equipped with on the flexible PCB of the electronic component such as signal processing unit, wireless transmission device.
Described supporting layer 4 is PDMS film that thickness is 80 ��m; Described protective layer 1 is PDMS film that thickness is 20 ��m; Described electrode 2 comprises conduction non-woven fabrics.
Can selection of land, the flexible macromolecule polymkeric substance of described supporting layer 4 is the one in ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene; Described protective layer 1 can also be polyethylene or the ethylene-vinyl acetate copolymer film of 10-50 ��m for thickness range.
The embodiment of the present invention additionally provides the preparation method of a kind of wearable physiology sign detecting sensor, and described wearable physiology sign detecting sensor is used for monitor heart rate and respiratory rate, comprises the following steps:
S1, it is coated with one layer of flexible macromolecule polymkeric substance at fabric isoelectric membrane to the region of chest heartbeat and forms fexible film, be supporting layer;
S2, on described supporting layer be coated with one layer of three-dimension hole shape nano sensitive material, obtain sensitive material;
S3, in step s 2 sensitive material surface draw two electrodes;
S4, it is coated with one layer of flexible macromolecule polymkeric substance on described sensitive material surface, is formed and cover described sensitive material and jointly wrap up the protective layer of described sensitive material with described supporting layer.
Specifically, the region touching chest heartbeat when first clothing being through at human body in step S1 carries out surface cleaning process, evenly brush in cleaning area or revolve and be coated with the PDMS film that a layer thickness is 80 ��m, the long 25mm of this film, wide 15mm and be less than the area of cleaning area, and be heating and curing in the baking oven of 70 DEG C two hours, supporting layer and clothing are combined together.
Can selection of land, the flexible macromolecule polymkeric substance of described supporting layer can also be the one in ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene.
Specifically, step S2 gets appropriate viscous liquid sensitive material and evenly revolves that to be coated with a layer thickness be that the sensitive material of 60 ��m is in the central zone of above-mentioned supporting layer, the long 20mm of this sensitive material, wide 10mm, and for some time that is heating and curing make sensitive material layers of polymer, and supporting layer combines together.
In step S3, the material of electrode comprises conduction non-woven fabrics, its thickness preferably 60 ��m, width 1.5mm; Can selection of land, described electrode can also be Copper Foil, its thickness preferably 10 ��m, width 1.5mm; The lead-out mode of electrode is for pasting.
Specifically, in step S4 have the sensitive material surface of electrode overall cover a layer thickness be the PDMS film of 20 ��m as protective layer, be heating and curing make electrode and sensitive material, supporting layer, underclothes heartbeat corresponding zone, chest melt as a whole. Can selection of land, described protective layer or for thickness range be polyethylene or the ethylene-vinyl acetate copolymer film of 10-50 ��m.
The embodiment of the present invention additionally provides a kind of Monitoring systems based on described wearable physiology sign detecting sensor, as shown in Figure 3, comprises with lower module:
Signal acquisition module, it comprises wearable physiology sign detecting sensor as above, for gathering human heartbeat's variable signal; Analog to digital conversion module, is converted to numerary signal for signal signal acquisition module collected; Signal processing module, for the treatment of, analyze the numerary signal that obtains of analog to digital conversion module, and draw monitoring analysis result; Display module, for showing the monitoring analysis result that described signal processing module exports.
Described analog to digital conversion module carries out A/D conversion by after the signal amplification of signal acquisition module collection, filtering, modulation, it is to increase the signal to noise ratio of output signal, and the numerary signal after conversion is sent to signal processing module in the way of transmission over radio.
Described signal acquisition module is by drawing flexible electrode connection signal processing module, and namely described signal acquisition module is be connected by wired mode with signal processing module, the described Monitoring systems based on described wearable physiology sign detecting sensor also comprises radio communication module, and it is mutual for realizing the transmission of signal between described analog to digital conversion module and signal processing module. the preferred Bluetooth wireless transmission of the transmission technology of radio communication module, the transmission technology of radio communication module can also adopt GPRS (GeneralPacketRadioService, general packet radio service technology), GSM (GlobalSystemofMobilecommunication, global system for mobile communications), WLAN (WirelessLocalAreaNetworks, WLAN), CDMA (CodeDivisionMultipleAccess), TDMA (TimeDivisionMultipleAccess, time division multiple access), NFC (NearFieldCommunication, near-field communication), Wi-Fi (Wireless-Fidelity, Wireless Fidelity), infrared radio technology, TV and communications network or other long-distance communication networks.
Described display module for show operational analysis process after monitoring analysis result, such as integrated informations such as waveform, wave amplitude, velocity of wave and cycles that heart rate and respiratory rate ripple present.
Described signal processing module and display module composite software are also loaded into client terminal, and for preventing the loss of monitoring data, described signal processing module also has the function deriving described monitoring analysis result. Described client terminal comprises smart mobile phone, panel computer, notebook computer, multi-functional liquid-crystal display watch and oscilloscope etc.
Embodiment two:
Fig. 2 is attached to the structural representation of heartbeat corresponding zone, underclothes chest for wearable physiology sign detecting sensor that the embodiment of the present invention provides, Fig. 1 is the structural representation of wearable physiology sign detecting sensor 6, figure sees by can know, the wearable physiology sign detecting sensor 6 of the present invention, for monitor heart rate and respiratory rate, comprising: fabric object 5; Supporting layer 4, it is formed in the region contacting chest heartbeat on described fabric object 5; Sensitive material 3, it is formed at the upper surface of described supporting layer 4; Electrode layer, comprises eight electrodes drawn from sensitive material 3 or sensitive material 3 surface; And protective layer 1, it is formed at the part that the upper surface of described sensitive material 3 or the upper surface of sensitive material 3 and electrode layer are positioned at the upper surface of sensitive material 3; Wherein, described sensitive material 3 is made up of three-dimension hole shape nano sensitive material, and described protective layer 1 is made up of flexible macromolecule polymkeric substance with supporting layer 4 and has biocompatibility, and described protective layer 1 wraps up described sensitive material 3 jointly with supporting layer 4.
Wherein, described supporting layer 4 is formed at clothing in contact in the region of chest heartbeat.
Preferably, the three-dimension hole shape nano sensitive material of described sensitive material has 0.2-20 ��m of hole not of uniform size, and the gap between Kong Yukong is 10-200 ��m, and described sensitive material 3 is prepared by following step:
S1, Graphene and tetracol phenixin carry out supersound process 30��60min for 1:1��1:3 after mixing in mass ratio, obtain slurry mixture;
S2, to add with Graphene mass ratio in slurry mixture be the PDMS of 1:1��1:6, after stirring mixture of viscous form;
S3, mixture of viscous form is coated on supporting layer 4, then it is heating and curing at 70��80 DEG C, thus obtained described sensitive material 3.
One end that described electrode 2 leans out sensitive material 3 connects wireless transmission device, and described electrode 2 and wireless transmission device are all wrapped up jointly by described supporting layer 4 and protective layer 1.
Described supporting layer 4 is the ethylene-vinyl acetate copolymer film of thickness 150 ��m; Described protective layer 1 is the ethylene-vinyl acetate copolymer film of thickness 50 ��m; Described electrode 2 comprises electrically conductive graphite.
Can selection of land, the flexible macromolecule polymkeric substance of described supporting layer 4 can also be the one in polydimethylsiloxane, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene; Described protective layer 1 can also be polyethylene film or the polydimethylsiloxanefilm film of 10-50 ��m for thickness range.
The embodiment of the present invention additionally provides the preparation method of a kind of wearable physiology sign detecting sensor, and described wearable physiology sign detecting sensor is used for monitor heart rate and respiratory rate, comprises the following steps:
S1, it is coated with one layer of flexible macromolecule polymkeric substance at fabric isoelectric membrane to the region of chest heartbeat and forms fexible film, be supporting layer;
S2, on described supporting layer be coated with one layer of three-dimension hole shape nano sensitive material, obtain sensitive material;
S3, in step s 2 sensitive material surface draw eight electrodes;
S4, it is coated with one layer of flexible macromolecule polymkeric substance on described sensitive material surface, is formed and cover described sensitive material and jointly wrap up the protective layer of described sensitive material with described supporting layer.
Specifically, the region of clothing in contact heartbeat is first carried out surface cleaning process by step S1, evenly brush in cleaning area or revolve and be coated with the ethylene-vinyl acetate copolymer film that a layer thickness is 150 ��m, the long 25mm of this film, wide 15mm, and be heating and curing for some time, supporting layer and fabric are combined together. Can selection of land, the flexible macromolecule polymkeric substance of described supporting layer can also be the one in polydimethylsiloxane, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene.
Specifically, step S2 gets appropriate viscous liquid sensitive material and evenly revolves that to be coated with thickness be that the sensitive material of 100 ��m is in the central zone of above-mentioned supporting layer, and described sensitive material is divided into the array arrangement that two row two arrange, and for some time that is heating and curing makes sensitive material layers of polymer, and supporting layer combines together.
In step S3, the material of electrode comprises electrically conductive graphite; The lead-out mode of electrode is physics cutting.
Specifically, in step S4 have the sensitive material surface of electrode overall cover a layer thickness be the ethylene-vinyl acetate copolymer film of 50 ��m as protective layer, be heating and curing and make electrode and sensitive material, supporting layer, fabric product melt as a whole. Can selection of land, described protective layer can also be polyethylene film or the polydimethylsiloxanefilm film of 10-50 ��m for thickness range.
The embodiment of the present invention additionally provides a kind of Monitoring systems based on described wearable physiology sign detecting sensor, as shown in Figure 4, comprises with lower module:
Signal acquisition module, it comprises wearable physiology sign detecting sensor as above, for gathering human heartbeat's variable signal; Analog to digital conversion module, is converted to numerary signal for signal signal acquisition module collected; Signal processing module, for the treatment of, analyze the numerary signal that obtains of analog to digital conversion module, and draw monitoring analysis result; Display module, for showing the monitoring analysis result that described signal processing module exports.
Described analog to digital conversion module carries out A/D conversion by after the signal amplification of signal acquisition module collection, filtering, modulation, it is to increase the signal to noise ratio of output signal, and the numerary signal after conversion is sent to signal processing module in the way of transmission over radio.
The described Monitoring systems based on described wearable physiology sign detecting sensor also comprises radio communication module, it is mutual for realizing the transmission of signal between described analog to digital conversion module and signal processing module, and simultaneously mutual for realizing the transmission of signal between described signal acquisition module and analog to digital conversion module. The preferred Bluetooth wireless transmission of the transmission technology of radio communication module, the transmission technology of radio communication module can also adopt GPRS, GSM, WLAN, CDMA, TDMA, NFC, Wi-Fi, infrared radio technology, TV and communications network or other long-distance communication networks.
Described display module for show operational analysis process after monitoring analysis result, such as integrated informations such as waveform, wave amplitude, velocity of wave and cycles that heart rate and respiratory rate ripple present.
Described signal processing module and display module composite software are also loaded into client terminal, and for preventing the loss of monitoring data, described signal processing module also has the function deriving described monitoring analysis result. Described client terminal comprises smart mobile phone, panel computer, notebook computer, multi-functional liquid-crystal display watch and oscilloscope etc.
Embodiment three:
Fig. 2 is attached to the structural representation of heartbeat corresponding zone, underclothes chest for wearable physiology sign detecting sensor that the embodiment of the present invention provides, Fig. 1 is the structural representation of wearable physiology sign detecting sensor 6 in Fig. 2, figure sees by can know, the wearable physiology sign detecting sensor 6 of the present invention, for monitor heart rate and respiratory rate, comprising: fabric object 5; Supporting layer 4, it is formed in the region contacting chest heartbeat on described fabric object 5; Sensitive material 3, it is formed at the upper surface of described supporting layer 4; Electrode layer, comprises at least two electrodes drawn from sensitive material 3 or sensitive material 3 surface; And protective layer 1, it is formed at the part that the upper surface of described sensitive material 3 or the upper surface of sensitive material 3 and electrode layer are positioned at the upper surface of sensitive material 3; Wherein, described sensitive material 3 is made up of three-dimension hole shape nano sensitive material, and described protective layer 1 is made up of flexible macromolecule polymkeric substance with supporting layer 4 and has biocompatibility, and described protective layer 1 wraps up described sensitive material 3 jointly with supporting layer 4.
Wherein, described fabric object 5 be underclothes just to the position in chest, supporting layer 4 is formed at clothing and is through at human contact in the region of chest heartbeat.
Preferably, the three-dimension hole shape nano sensitive material of described sensitive material has 0.2-20 ��m of hole not of uniform size, and the gap between Kong Yukong is 10-200 ��m, and described sensitive material 3 is prepared by following step:
S1, carbon nanotube and acetone carry out supersound process 30��60min for 1:1��1:3 after mixing in mass ratio, obtain slurry mixture;
S2, add in slurry mixture and carbon nanotube mass than being the PDMS of 1:1��1:6, after stirring mixture of viscous form;
S3, mixture of viscous form is coated on supporting layer 4, then it is heating and curing at 70��80 DEG C, thus obtained described sensitive material 3. One end that described electrode 2 leans out sensitive material 3 does not contact with protective layer 1 with described supporting layer 4, and one end that electrode 2 leans out sensitive material 3 is drawn and is connected to be equipped with on the flexible PCB of the electronic component such as signal processing unit, wireless transmission device.
Described supporting layer 4 is the PDMS film of thickness 20 ��m; Described protective layer 1 is the PE film of thickness 12 ��m; Described electrode 2 comprises nano silver wire or carbon nanotube.
Can selection of land, the flexible macromolecule polymkeric substance of described supporting layer 4 can also be the one in ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene; Described protective layer 1 can also be PDMS or the ethylene-vinyl acetate copolymer film of 10-50 ��m for thickness range.
The embodiment of the present invention additionally provides the preparation method of a kind of wearable physiology sign detecting sensor, and described wearable physiology sign detecting sensor is used for monitor heart rate and respiratory rate, comprises the following steps:
S1, it is coated with one layer of flexible macromolecule polymkeric substance at fabric isoelectric membrane to the region of chest heartbeat and forms fexible film, be supporting layer;
S2, on described supporting layer be coated with one layer of three-dimension hole shape nano sensitive material, obtain sensitive material;
S3, in step s 2 sensitive material surface draw two electrodes;
S4, it is coated with one layer of flexible macromolecule polymkeric substance on described sensitive material surface, is formed and cover described sensitive material and jointly wrap up the protective layer of described sensitive material with described supporting layer.
Specifically, the region that underclothes first touches in step S1 chest heartbeat carries out surface cleaning process, evenly brush in cleaning area or revolve and be coated with the PDMS film that a layer thickness is 20 ��m, the long 25mm of this film, wide 15mm, and be heating and curing for some time, just combined together in the region in chest by supporting layer and underclothes. Can selection of land, the flexible macromolecule polymkeric substance of described supporting layer can also be the one in ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene.
Specifically, step S2 gets appropriate viscous liquid sensitive material and evenly revolves that to be coated with a layer thickness be that the sensitive material of 80 ��m is in the central zone of above-mentioned supporting layer, the long 20mm of this sensitive material, wide 10mm, and for some time that is heating and curing make sensitive material layers of polymer, and supporting layer combines together.
In step S3, the material of electrode comprises nano silver wire or carbon nanotube; The lead-out mode of electrode is printing.
Specifically, in step S4 have the sensitive material surface of electrode overall cover a layer thickness be the PE film of 12 ��m as protective layer, be heating and curing and make electrode and sensitive material, supporting layer, heartbeat corresponding zone, underclothes chest melt as a whole. Can selection of land, described protective layer can also be PDMS or the ethylene-vinyl acetate copolymer film of 10-50 ��m for thickness range.
The embodiment of the present invention additionally provides a kind of Monitoring systems based on above-mentioned wearable physiology sign detecting sensor, as shown in Figure 3, comprises with lower module:
Signal acquisition module, it comprises wearable physiology sign detecting sensor as above, for gathering human heartbeat's variable signal; Analog to digital conversion module, is converted to numerary signal for signal signal acquisition module collected; Signal processing module, for the treatment of, analyze the numerary signal that obtains of analog to digital conversion module, and draw monitoring analysis result; Display module, for showing the monitoring analysis result that described signal processing module exports.
Described analog to digital conversion module carries out A/D conversion by after the signal amplification of signal acquisition module collection, filtering, modulation, it is to increase the signal to noise ratio of output signal, and the numerary signal after conversion is sent to signal processing module in the way of transmission over radio.
Described signal acquisition module is by extraction electrode connection signal processing module, and namely described signal acquisition module is be connected by wired mode with signal processing module; The described Monitoring systems based on described wearable physiology sign detecting sensor also comprises radio communication module, and it is mutual for realizing the transmission of signal between described analog to digital conversion module and signal processing module. The preferred Bluetooth wireless transmission of the transmission technology of radio communication module, the transmission technology of radio communication module can also adopt GPRS, GSM, WLAN, CDMA, TDMA, NFC, Wi-Fi, infrared radio technology, TV and communications network or other long-distance communication networks.
Described display module for show operational analysis process after monitoring analysis result, such as integrated informations such as waveform, wave amplitude, velocity of wave and cycles that heart rate and respiratory rate ripple present.
Described signal processing module and display module composite software are also loaded into client terminal, and for preventing the loss of monitoring data, described signal processing module also has the function deriving described monitoring analysis result. Described client terminal comprises smart mobile phone, panel computer, notebook computer, multi-functional liquid-crystal display watch and oscilloscope etc.
Wearable physiology sign detecting sensor small for volume is integrated on the fabric contacted with chest heartbeat by the present invention, the sensitive material of sensor is by flexible macromolecule polymer wrapped, light and handy easily band, real-time well just can gather chest heartbeat data, timely objective ground feedback monitoring data and display analysis result.
Adopt embodiments of the invention, there is following useful effect: 1. in the present invention, flexible sensor wearable physiology sign detecting sensor volume is small, it is possible to be processed to various shape, can attach, be worn on skin surface, easy to use and for masses can accept, do not affect daily activity; 2. the sensitive material of sensor is by flexible materials flexible macromolecule polymer wrapped, and waterproof is anti-extrusion; 3. this Monitoring systems be lightly easily with, real-time good, when human body is normally movable, timely can feed back chest heartbeat inspecting data and display analysis result objectively, thus monitor physiology sign more easily.
The above disclosed several better embodiment being only the present invention, can not limit the interest field of the present invention certainly with this, and the equivalent variations therefore done according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (9)
1. a wearable physiology sign detecting sensor, for monitor heart rate and respiratory rate, it is characterised in that, comprising:
Fabric object (5);
Supporting layer (4), it is formed in the region touching chest heartbeat on described fabric object (5);
Sensitive material (3), it is formed at the upper surface of described supporting layer (4);
Electrode layer, comprises at least two electrodes (2) drawn from sensitive material (3) or sensitive material (3) surface;
And protective layer (1), it is formed at the part that the upper surface of described sensitive material (3) or the upper surface of sensitive material (3) and electrode layer are positioned at the upper surface of sensitive material (3);
Wherein, described sensitive material (3) is made up of three-dimension hole shape nano sensitive material, described protective layer (1) and supporting layer (4) are made up of flexible macromolecule polymkeric substance and have biocompatibility, described protective layer (1) and supporting layer (4) the described sensitive material of parcel (3) jointly;
The size in the hole of the three-dimension hole shape nano sensitive material of described sensitive material (3) is 0.2-20 ��m, and the gap between Kong Yukong is 10-200 ��m, and described sensitive material (3) is prepared by following step:
Carbon material and volatile solvent carry out supersound process 30��60min for 1:1��1:3 after mixing in mass ratio, obtain slurry mixture;
Adding in slurry mixture is the flexible macromolecule polymkeric substance of 1:1��1:6 with carbon material mass ratio, after stirring mixture of viscous form;
Mixture of viscous form is coated on supporting layer (4), then it is heating and curing at 70��80 DEG C, thus obtained described sensitive material (3).
2. wearable physiology sign detecting sensor as claimed in claim 1; it is characterized in that; one end that described electrode (2) leans out sensitive material (3) does not contact with protective layer (1) with described supporting layer (4); or, one end that described electrode (2) leans out sensitive material (3) connects wireless transmission device and described electrode (2) and is all jointly wrapped up by described supporting layer (4) and protective layer (1) with wireless transmission device.
3. wearable physiology sign detecting sensor as claimed in claim 1 or 2, it is characterized in that, the thickness range of described supporting layer (4) is 10-150 ��m, described supporting layer (4) is PDMS film, or the flexible macromolecule polymkeric substance of described supporting layer (4) is the one in ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene; Described protective layer (1) for thickness range be the PDMS film of 10-50 ��m, or for thickness range be PE film or the ethylene-vinyl acetate copolymer film of 10-50 ��m; Described electrode (2) comprises conduction non-woven fabrics or Copper Foil.
4. a preparation method for wearable physiology sign detecting sensor, described wearable physiology sign detecting sensor is used for monitor heart rate and respiratory rate, it is characterised in that, comprise the following steps:
S1, the region touching chest heartbeat on fabric object are coated with one layer of flexible macromolecule polymkeric substance and form fexible film, are supporting layer;
S2, on described supporting layer be coated with one layer of three-dimension hole shape nano sensitive material, obtain sensitive material; Described sensitive material is made up of three-dimension hole shape nano sensitive material, and the size in the hole of the three-dimension hole shape nano sensitive material of described sensitive material is 0.2-20 ��m, and the gap between Kong Yukong is 10-200 ��m; Described sensitive material is prepared by following step:
Carbon material and volatile solvent carry out supersound process 30��60min for 1:1��1:3 after mixing in mass ratio, obtain slurry mixture;
Adding in slurry mixture is the flexible macromolecule polymkeric substance of 1:1��1:6 with carbon material mass ratio, after stirring mixture of viscous form;
Mixture of viscous form is coated on supporting layer, is then heating and curing at 70��80 DEG C, thus obtained described sensitive material;
S3, in step s 2 sensitive material surface draw at least two electrodes;
S4, it is coated with one layer of flexible macromolecule polymkeric substance on described sensitive material surface, is formed and cover described sensitive material and jointly wrap up the protective layer of described sensitive material with described supporting layer.
5. the preparation method of wearable physiology sign detecting sensor as claimed in claim 4, it is characterized in that, the thickness range of the supporting layer in step S1 is 10-150 ��m, supporting layer is PDMS film, or the flexible macromolecule polymkeric substance of supporting layer is the one in ethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, polyimide, polyethylene; Protective layer in step S4 is thickness range is the PDMS film of 10-50 ��m, or for thickness range be PE film or the ethylene-vinyl acetate copolymer film of 10-50 ��m.
6. the preparation method of wearable physiology sign detecting sensor as claimed in claim 4, it is characterized in that, in step S3, the material of electrode is conduction non-woven fabrics, Copper Foil or enameled wire, or, the material of described electrode is one or more combinations in gold, platinum, nickel, silver, indium, carbon nanotube or Graphene; The lead-out mode of electrode is for pasting, print or physics cutting.
7. the Monitoring systems based on wearable physiology sign detecting sensor according to claim 1, it is characterised in that, comprise with lower module:
Signal acquisition module, it comprises wearable physiology sign detecting sensor as claimed in claim 1, for gathering human heartbeat's variable signal;
Analog to digital conversion module, is converted to numerary signal for signal signal acquisition module collected;
Signal processing module, for the treatment of, analyze the numerary signal that obtains of analog to digital conversion module, and draw monitoring analysis result;
Display module, for showing the monitoring analysis result that described signal processing module exports.
8. the Monitoring systems of wearable physiology sign detecting sensor as claimed in claim 7, it is characterized in that, also comprise radio communication module, it is mutual for realizing the transmission of signal between described analog to digital conversion module and signal processing module, or simultaneously mutual for realizing the transmission of signal between described signal acquisition module and analog to digital conversion module.
9. the Monitoring systems of wearable physiology sign detecting sensor as claimed in claim 7 or 8, it is characterized in that, described signal processing module and display module composite software are also loaded into client terminal, and described signal processing module also has the function deriving described monitoring analysis result.
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