CN107684420A - A kind of liquid metal electrocardio electrode plate - Google Patents
A kind of liquid metal electrocardio electrode plate Download PDFInfo
- Publication number
- CN107684420A CN107684420A CN201610631371.9A CN201610631371A CN107684420A CN 107684420 A CN107684420 A CN 107684420A CN 201610631371 A CN201610631371 A CN 201610631371A CN 107684420 A CN107684420 A CN 107684420A
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- liquid metal
- alloy
- indium
- gallium
- storage chamber
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/251—Means for maintaining electrode contact with the body
- A61B5/257—Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes
- A61B5/259—Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes using conductive adhesive means, e.g. gels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Dispersion Chemistry (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Electrotherapy Devices (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The present invention provides a kind of liquid metal electrocardio electrode plate, it is integral type structure, and the electrode slice is rounded, is divided into two layers up and down along central shaft, upper strata is provided with storage chamber (2), lower floor is provided with contact chamber (4), storage chamber variable volume, internal filling liquid metal, it is the conical hollow cavity made of deformable elastomeric material to contact chamber, electrode slice contacts chamber in use, the liquid metal in storage chamber enters, and makes liquid metal and direct skin contact;The peripheral annular region of contact chamber is provided with adhesive-layer (5);Wire (3) positioned at electrode slice center is through storage chamber and contact chamber, and electrode slice is in use, the lower end of wire is infiltrated in liquid metal, and the other end stretches out from storage chamber center, for being connected with detecting instrument.Liquid metal electrode slice provided by the invention has flexibility well, can be completely bonded with the skin of user, be effectively improved the contact area of electrode;And activity cavity designs, and electrode slice may be reused.
Description
Technical field
The present invention relates to field of medical materials, specifically, is related to a kind of liquid metal electrocardio electrode plate.
Background technology
Various bioelectrical signals in organism be present, most common of which is electrocardiosignal, and the detection of electrocardiosignal
Have great importance for diagnosis of cardiovascular diseases.Electric current in organism is ionic conduction, and in electrode and detecting instrument
Electric current be electronic conduction, it is therefore necessary to corresponding electronic conduction is converted to the ionic conduction in organism by electrode.
The skin of human body equivalent to the pellicle of ion there is certain potential difference, metal and skin to pass through oxygen in electrolyte environment
Change reduction reaction and realize conversion of the ionic conduction to electronic conduction.Traditional electrocardio electrode plate is mainly by sheet metal and conductive paste group
Into the effect of conductive paste is to ensure the good contact of sheet metal and skin, while plays a part of electrolyte.Current electrocardio electricity
Extremely to use solid metal pellet electrode, this electrode can not be well matched with the rough skin of surface configuration more, because
And influence the Detection results of electrode.In addition, although disposable electrocardio electrode plate small volume, easy to use, to electrode material
Consumption it is larger, cause the waste of resource.
Liquid metal is the relatively low alloy of a kind of fusing point, such as gallium-base alloy, indium-base alloy, bismuth-base alloy.This alloy
Material has good electric conductivity and relatively low fusing point, thus flexible electronic, deformable machine study etc. have it is wide
Application prospect.
The content of the invention
It is an object of the invention to provide a kind of liquid metal electrocardio electrode plate.
In order to realize the object of the invention, liquid metal is applied to the preparation of electrocardio electrode plate by the present invention, utilizes liquid gold
The mobility and electric conductivity of category, make itself and skin contact in irregular shape, so as to increase effective contact area, improve electrocardio electricity
The Detection results of pole.In addition, liquid metal is combined by the present invention with the elastic film of given shape, user can be from master control
The release and recovery of liquid metal processed, so that the electrode slice may be reused.
Liquid metal electrocardio electrode plate provided by the invention, it is integral type electrocardio electrode plate, and the electrode slice is in integrally
Circle, it is divided into two layers up and down along circular central axle, upper strata is provided with storage chamber 2, and lower floor is provided with contact chamber 4, and the storage chamber 2 is
The cavity of one variable volume, internal filling liquid metal, the volume by changing cavity discharges and recovering liquid metal, described
It is a conical hollow cavity made of deformable elastomeric material to contact chamber 4, and electrode slice is in use, upper strata storage chamber 2
Interior liquid metal enters lower floor's contact chamber 4, makes liquid metal and direct skin contact;The peripheral annular area of the contact chamber 4
Domain is provided with adhesive-layer 5, for electrode slice to be fixed on into skin surface;Wire 3 positioned at electrode slice center stores through upper strata
Chamber 2 and lower floor's contact chamber 4, electrode slice is in use, ensure that the lower end infiltration of wire 3 is entering the liquid of contact chamber 4 from storage chamber 2
In metal, the other end of wire 3 stretches out from the center of storage chamber 2, for being connected with detecting instrument.
The storage chamber 2 is cylinder or spheroidal, and the change of cavity volume is realized by piston or elastic bag, described
Wire 3 is central through piston or elastic bag.In addition, protected using the variable volume cavity of other modes design in the present invention
In the range of shield.
The liquid metal is a kind of metal or alloy material for keeping liquid at normal temperatures, including gallium-base alloy, indium base
Alloy, bismuth-base alloy etc.;Or the liquid metal is alloy material of the metal surface by modification, the modification includes oxygen
Change processing etc..
Preferably, the liquid metal is gallium-indium alloy, gallium-indium-tin alloy or bismuth indium stannum alloy etc., and liquid is under normal temperature
State.
It is highly preferred that the liquid metal is by 75.5 by gallium and indium:The gallium-indium alloy of 24.5 mass ratio composition, it is described
The fusing point of gallium-indium alloy is 10.35 DEG C.
The electrode slice is made up of insulation and flexible material, including rubber, silica gel or plastics, such as poly dimethyl silicon
Oxygen alkane, polyethylene etc., or use other kinds of macromolecule polymer material.
The surface mount of adhesive-layer 5 has the PVC film that can be removed.Adhesive-layer uses the mucilage materialses of traditional electrocardioelectrode,
When electrode slice is not used, adhesive-layer surface mount PVC film, to prevent the viscosity of mucilage materialses from declining.
The present invention also provides application of the liquid metal in electrocardio electrode plate is prepared.
The liquid metal is a kind of metal or alloy material for keeping liquid at normal temperatures, including gallium-base alloy, indium base
Alloy, bismuth-base alloy etc.;Or the liquid metal is alloy material of the metal surface by modification, the modification includes oxygen
Change processing etc..
Preferably, the liquid metal is gallium-indium alloy, gallium-indium-tin alloy or bismuth indium stannum alloy etc., and liquid is under normal temperature
State.
It is highly preferred that the liquid metal is by 75.5 by gallium and indium:The gallium-indium alloy of 24.5 mass ratio composition, it is described
The fusing point of gallium-indium alloy is 10.35 DEG C.
Present invention firstly provides a kind of design based on liquid metal electrocardio electrode plate, leading for liquid metal is utilized
Electrical and mobility, as electrode and direct skin contact.The liquid metal electrode slice has flexibility well, can
It is bonded completely with the skin of user, is effectively improved the contact area of electrode, and the design of activity cavity so that electrode
Piece may be reused.
Brief description of the drawings
Fig. 1 is the overall structure diagram of piston type liquid metal cores electricity electrode slice in the embodiment of the present invention 1;Wherein, A is
The overall appearance figure of electrode slice;B is the profile of electrode slice.
Fig. 2 is the piston movement situation of electrocardio electrode plate and the situation of change of liquid metal position in the embodiment of the present invention 1;
Wherein, A is unused state;B is use state.
Fig. 3 is the overall structure diagram of gasbag-type liquid metal electrocardio electrode plate in the embodiment of the present invention 2;Wherein, A is
The overall appearance figure of electrode slice;B is the profile of electrode slice.
Fig. 4 is the air bag deformation and liquid metal change in location situation of electrocardio electrode plate in the embodiment of the present invention 2;Its
In, A is unused state;B is use state.
In figure, 1:Liquid metal electrocardio electrode plate;2:Storage chamber;3:Wire (connecting wire);4:Contact chamber;5:Viscose glue
Layer;6:Piston;7:Elastic film;8:Air bag;9:Liquid metal.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.Unless otherwise specified, embodiment
In the conventional meanses that are well known to those skilled in the art of used technological means, raw materials used is commercial goods.
Liquid metal used is by 75.5 by gallium and indium in following examples:The gallium-indium alloy of 24.5 mass ratio composition,
The fusing point of the gallium-indium alloy is 10.35 DEG C.Experiment shows that gallium-indium alloy can not be dissolved in the water, and is not easy to be absorbed by the skin, makes
With safety.Electrode slice is including rubber, silica gel or plastics, such as poly dimethyl silicon made of insulation and flexible material
Oxygen alkane, polyethylene etc., or use other kinds of macromolecule polymer material.
In the description of the invention, unless otherwise indicated, the orientation of the instruction such as term " on ", " under " or state relation are only
Described for the ease of description is of the invention with simplified, rather than the device or element of instruction or hint meaning must be with specifically sides
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
The piston type liquid metal cores electricity electrode slice of embodiment 1
The overall structure diagram for the piston type liquid metal cores electricity electrode slice that the present embodiment provides is shown in Fig. 1.Liquid metal
Electrocardio electrode plate 1 can be divided into two layers up and down:Upper strata is centrally located cylindrical upper strata storage chamber 2, in the storage chamber of upper strata
The heart is through the connecting wire 3 of whole electrode slice, and lower floor center is lower floor's contact chamber 4 of cone, when in use filling liquid
Metal 9 and direct skin contact, lower floor's peripheral circles shape region are adhesive-layers 5, and PVC film is posted on surface when being not used, and are used
When take PVC film off and be pasted onto skin surface.
The piston movement situation for the piston type liquid metal cores electricity electrode slice that the present embodiment provides and liquid metal position
Situation of change is shown in Fig. 2.Upper strata storage chamber 2 is the activity cavity of variable volume, real by the way of moveable piston in the present embodiment
The change of existing cavity volume:On upper strata, the top of storage chamber 2 sets a round rubber piston 6.Electrode slice sticks on skin table
Behind face, piston 6 is pushed inward, liquid metal 9 is filled into lower floor's contact chamber 4;After electrode use terminates, work is pulled out
Plug, makes liquid metal 9 suck back again in upper strata storage chamber 2.Chamber 4 upper table EDS maps, one layer of deformable Thin Elastic is contacted in lower floor
Film 7, when pushing inward piston 6, elastic film 7 raises up, and for equilibrium air pressure, liquid metal 9 is smoothly entered lower floor
Contact chamber 4.
The gasbag-type liquid metal electrocardio electrode plate of embodiment 2
The overall structure diagram for the gasbag-type liquid metal electrocardio electrode plate that the present embodiment provides is shown in Fig. 3.Liquid metal
Electrocardio electrode plate 1 can be divided into two layers up and down:Upper strata is about the one ball-shaped elastic bag 8 for having opening, inside filling
Liquid metal 9;Air bag 8 contacts downwards chamber 4 with lower floor and is connected, and lower floor's contact chamber 4 is a conical cavity;By the upper end of air bag 8
Opening insertion connecting wire 3, and enter lower floor's contact chamber 4 via the lower ending opening of air bag 8;Lower floor's peripheral circles shape region is viscose glue
Layer 5.
The air bag deformation for the gasbag-type liquid metal electrocardio electrode plate that the present embodiment provides and liquid metal position become
Change situation is shown in Fig. 4.When using electrode slice, electrode slice is sticked on into extruding gasbag 8 after skin surface, makes its internal liquid gold
Category 9 enters lower floor's contact chamber 4, with skin contact;After terminating, air bag 8, in the presence of its own resilient of air bag 8, liquid are unclamped
State metal 9 is sucked back in upper strata storage chamber 2.Chamber 4 upper table EDS maps, one layer of deformable elastic film 7 is contacted in lower floor, is being extruded
During air bag 8, elastic film 7 raises up, and for equilibrium air pressure, liquid metal 9 is smoothly entered lower floor's contact chamber 4.
After testing, the using effect of the liquid metal electrocardio electrode plate prepared in Examples 1 and 2 is relatively stable, with commercialization
The electrocardioelectrode test result goodness of fit is within 2%, and long-term use of amplitude of variation is controlled within 5%.
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of liquid metal electrocardio electrode plate, it is characterised in that it is integral type electrocardio electrode plate, and the electrode slice is in integrally
Circle, it is divided into two layers up and down along circular central axle, upper strata is provided with storage chamber (2), and lower floor is provided with contact chamber (4), the storage
Chamber (2) is the cavity of a variable volume, and internal filling liquid metal, the volume by changing cavity discharges and recovering liquid gold
Category, the contact chamber (4) is a conical hollow cavity made of deformable elastomeric material, electrode slice in use, on
Liquid metal in layer storage chamber (2) enters lower floor's contact chamber (4), makes liquid metal and direct skin contact;The contact chamber
(4) peripheral annular region is provided with adhesive-layer (5), for electrode slice to be fixed on into skin surface;Positioned at leading for electrode slice center
Line (3) is through upper strata storage chamber (2) and lower floor's contact chamber (4), and electrode slice is in use, ensure that the lower end infiltration of wire (3) exists
Entering from storage chamber (2) in the liquid metal of contact chamber (4), the other end of wire (3) stretches out from storage chamber (2) center,
For being connected with detecting instrument.
2. electrocardio electrode plate according to claim 1, it is characterised in that the storage chamber (2) is cylindrical or spheroidal,
Realize the change of cavity volume by piston or elastic bag, the wire (3) is through piston or elastic bag center.
3. electrocardio electrode plate according to claim 1 or 2, it is characterised in that the liquid metal is to keep at normal temperatures
A kind of metal or alloy material of liquid, including gallium-base alloy, indium-base alloy, bismuth-base alloy;Or the liquid metal is gold
Alloy material of the metal surface by modification, the modification include oxidation processes.
4. electrocardio electrode plate according to claim 3, it is characterised in that the liquid metal is gallium-indium alloy, gallium indium tin
Alloy or bismuth indium stannum alloy.
5. electrocardio electrode plate according to claim 4, it is characterised in that the liquid metal is by 75.5 by gallium and indium:
The gallium-indium alloy of 24.5 mass ratio composition, the fusing point of the gallium-indium alloy is 10.35 DEG C.
6. according to the electrocardio electrode plate described in claim any one of 1-5, it is characterised in that the electrode slice is by insulating and having
The material of elasticity is made, including rubber, silica gel or plastics.
7. according to the electrocardio electrode plate described in claim any one of 1-6, it is characterised in that adhesive-layer (5) surface mount
There is the PVC film that can be removed.
8. application of the liquid metal in electrocardio electrode plate is prepared.
9. application according to claim 8, it is characterised in that the liquid metal is the one kind for keeping liquid at normal temperatures
Metal or alloy material, including gallium-base alloy, indium-base alloy, bismuth-base alloy;Or the liquid metal is that metal surface is passed through
The alloy material of modification, the modification include oxidation processes.
10. application according to claim 8 or claim 9, it is characterised in that the liquid metal is gallium-indium alloy, gallium indium tin conjunction
Gold or bismuth indium stannum alloy;It is preferred that the liquid metal is by 75.5 by gallium and indium:The gallium-indium alloy of 24.5 mass ratio composition, institute
The fusing point for stating gallium-indium alloy is 10.35 DEG C.
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CN201610631371.9A CN107684420B (en) | 2016-08-04 | 2016-08-04 | Liquid metal electrocardioelectrode piece |
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CN201610631371.9A CN107684420B (en) | 2016-08-04 | 2016-08-04 | Liquid metal electrocardioelectrode piece |
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CN107684420B CN107684420B (en) | 2020-12-04 |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108955226A (en) * | 2018-08-17 | 2018-12-07 | 佛山市蓝瑞欧特信息服务有限公司 | Ceramic tile automatic drier |
CN109243961A (en) * | 2018-09-30 | 2019-01-18 | 镇江华智睿安物联科技有限公司 | A kind of microflow control technique electrode ion migration tube and preparation method thereof |
CN110108771A (en) * | 2019-05-13 | 2019-08-09 | 北京镓族科技有限公司 | The method and purposes of liquid gallium or liquid gallium-base alloy as electrode material |
CN110367972A (en) * | 2019-06-28 | 2019-10-25 | 重庆市职业病防治院(重庆市第六人民医院) | A kind of electrocardio monitoring electrode plate |
CN111254370A (en) * | 2020-01-20 | 2020-06-09 | 深圳市德诚旺科技有限公司 | Self-fluxing alloy material and preparation method thereof |
CN111436932A (en) * | 2020-04-03 | 2020-07-24 | 南昌大学 | Liquid metal electroencephalogram electrode |
CN111465190A (en) * | 2019-01-18 | 2020-07-28 | 北京梦之墨科技有限公司 | Wearable electronic circuit, DIY manufacturing method thereof and DIY suite |
CN112289618A (en) * | 2020-10-14 | 2021-01-29 | 西安医学院 | Phase change switch based on gallium indium tin liquid metal |
CN118078297A (en) * | 2023-12-15 | 2024-05-28 | 中国人民解放军总医院第四医学中心 | Surface enhanced electrode slice based on liquid alloy and manufacturing device thereof |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108955226A (en) * | 2018-08-17 | 2018-12-07 | 佛山市蓝瑞欧特信息服务有限公司 | Ceramic tile automatic drier |
CN108955226B (en) * | 2018-08-17 | 2020-07-17 | 瑞安市如果建材有限公司 | Automatic drying device for ceramic tiles |
CN109243961A (en) * | 2018-09-30 | 2019-01-18 | 镇江华智睿安物联科技有限公司 | A kind of microflow control technique electrode ion migration tube and preparation method thereof |
CN109243961B (en) * | 2018-09-30 | 2024-05-14 | 镇江华智睿安物联科技有限公司 | Microfluidic electrode ion migration tube and preparation method thereof |
CN111465190A (en) * | 2019-01-18 | 2020-07-28 | 北京梦之墨科技有限公司 | Wearable electronic circuit, DIY manufacturing method thereof and DIY suite |
CN110108771A (en) * | 2019-05-13 | 2019-08-09 | 北京镓族科技有限公司 | The method and purposes of liquid gallium or liquid gallium-base alloy as electrode material |
CN110367972A (en) * | 2019-06-28 | 2019-10-25 | 重庆市职业病防治院(重庆市第六人民医院) | A kind of electrocardio monitoring electrode plate |
CN111254370A (en) * | 2020-01-20 | 2020-06-09 | 深圳市德诚旺科技有限公司 | Self-fluxing alloy material and preparation method thereof |
CN111436932A (en) * | 2020-04-03 | 2020-07-24 | 南昌大学 | Liquid metal electroencephalogram electrode |
CN112289618A (en) * | 2020-10-14 | 2021-01-29 | 西安医学院 | Phase change switch based on gallium indium tin liquid metal |
CN118078297A (en) * | 2023-12-15 | 2024-05-28 | 中国人民解放军总医院第四医学中心 | Surface enhanced electrode slice based on liquid alloy and manufacturing device thereof |
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