CN201752412U - Electrode for non-interference electrophysiological detection - Google Patents
Electrode for non-interference electrophysiological detection Download PDFInfo
- Publication number
- CN201752412U CN201752412U CN2010202839117U CN201020283911U CN201752412U CN 201752412 U CN201752412 U CN 201752412U CN 2010202839117 U CN2010202839117 U CN 2010202839117U CN 201020283911 U CN201020283911 U CN 201020283911U CN 201752412 U CN201752412 U CN 201752412U
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- electrode
- physiological detection
- electric physiological
- detection electrode
- noiseless electric
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Abstract
The utility model relate to an electrode for non-interference electrophysiological detection. The electrode comprises an electrode sheet and an amplification processing module, wherein the electrode sheet is connected with the signal output end of the amplification processing module, and the amplification processing module is provided with an electrode wire and/or a wireless transmission circuit for signal output; the amplification processing module is further provided with an impedance conversion circuit and an amplification circuit; a shielded shell body is arranged outside the amplification processing module, and is provided with an inward opening; the electrode sheet is located in the inward opening; and an insulating material layer for encapsulation is arranged outside the shielded shell body. The electrode effectively reduces spatial electrical and magnetic filed interference, ensures the completeness of a signal to be detected, reduces detection errors, reduces limit to activities of a person subjected to detection, increases convenience of clinical monitoring, and is mainly used for various electrophysiological detection equipment for electroencephalogram, electrocardiogram, electromyogram and the like.
Description
Technical field
This utility model relates to a kind of noiseless electric physiological detection electrode, is mainly used in various electric physiological detection equipment such as electroencephalogram, electrocardiogram, electromyogram.
Background technology
In the various electric physiological detection equipment such as existing electroencephalogram, electrocardiogram, electromyogram, common metal electrode slice or the metallic compound electrode slices (silver or silver chloride electrode) etc. of adopting contact with human body more, be used to adopt the corresponding electricity physiological signal of human body, and the amplifier that is used for the signal amplification is arranged on the main body of checkout equipment, and adopt lead that electrode slice and amplifier are coupled together, so that carry out the amplification of signal and carry out follow-up various signal processing by amplifier, obtain testing results such as corresponding chart.A major defect of this class checkout equipment is: because amplifier in all is the high impedance input, therefore be easy to be coupled into the various types of electricity in space, magnetic interference on the lead between connection electrode and the amplifier, the signal to noise ratio of amplifier input signal is descended, be easy to cause final detected useful signal distortion, bring error to analyzing and processing, the reliability of influence diagnosis.The settling mode that people take in the practice is the length that reduces electrode wires as much as possible, disturb to reduce electromagnetic noise, but this mode not only effect be limited, but also can cause the inconvenience in the use.
On the other hand, because electrode slice is with adopting lead to connect between amplifier or the equipment body, measured's range of activity or model of action have also been limited thus, particularly in detecting, some need the measured to carry out the activity of certain way, perhaps need activity because of the chronic measured who detects, perhaps require measured's activity when the patient of detection is accepted in transhipment, this restriction to the measured is just very obvious to the inconvenience that people bring.
The utility model content
For overcoming the above-mentioned defective of prior art, a basic purpose of the present utility model is to reduce space electricity, magnetic interference, guarantees the integrity of detection signal as much as possible, reduces and detects error.
Another purpose of the present utility model is to reduce the active restriction of measured, increases the convenience of clinical monitoring.
This utility model realizes that the technical scheme of above-mentioned purpose is: a kind of noiseless electric physiological detection electrode, comprise electrode slice, and also comprise the processing and amplifying module, described electrode slice connects the signal output part of described processing and amplifying module.
Owing on electrode, be provided with amplification treatment circuit, electrode slice directly is connected the outfan of amplification treatment circuit, can make the part that contacts with human body still keep very high input impedance, guaranteed intactly to be detected by acquired signal; Owing to is connected between electrode slice and the amplification treatment circuit apart from very little, and can effectively shield, the space electromagnetic interference that is subjected to before amplification treatment circuit of signal is very little thus, can not arrive testing result and produce actual influence, and can under low impedance state, transmit by electrode wires from the signal of amplification treatment circuit output, also can adopt wireless transmission, reduced significantly thus by the electromagnetic interference of electrode to the transmission course between the equipment body, improved the signal to noise ratio of signal effectively, the error that has reduced distorted signals and brought by distorted signals.In addition, because the signal through processing and amplifying can adopt the wireless mode transmission, can not establish the lead that is used to transmit signal in case of necessity, avoid thus also having avoided the obstruction of lead itself people because be provided with the restriction of lead to measured's range of activity and model of action.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of this utility model;
Fig. 2 is the circuit block diagram of a kind of processing and amplifying module of this utility model.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the noiseless electric physiological detection that this utility model provides comprises electrode slice 5 with electrode, also comprise the processing and amplifying module, described electrode slice connects the signal output part of described processing and amplifying module, described electrode slice can adopt the connected mode of any suitable with the connection of described processing and amplifying module, described processing and amplifying module can be made circuit board 6, realize being connected of electrode slice and described circuit board by modes such as welding leads, also can with electrode slice directly built in or be welded on the circuit board.
Described processing and amplifying module can be provided with electrode wires 1 and/or the radio transmitter that is used for signal output usually, so that output signal is transferred to main body or other devices of checkout equipment.
Described processing and amplifying module can be provided with impedance inverter circuit and amplifying circuit usually, with the amplification of realization signal and required impedance transformation, realizes the electrode wires transmission of output signal under low impedance state.Described impedance inverter circuit can be positioned at the front of described amplifying circuit, also can be positioned at the back of described amplifying circuit according to the circuit design needs.
Described impedance inverter circuit and amplifying circuit can adopt the Low-Power CMOS operational amplifier, so that in the purpose that realizes impedance conversion and amplification, save power consumption as much as possible, prolong battery service life.
Described processing and amplifying module can be provided with circumscripted power line and/or the battery 3 that is used to power, so that to the each several part circuit supply of this module, even can also be to other parts that need the power power supplies of checkout equipment electrode tip.
Described battery is preferably button cell, to reduce the volume of electrode.
The outside of described processing and amplifying module can be provided with shield shell 4 usually, to avoid the interference of external electromagnetic noise.
Described shield shell can be provided with inwardly uncovered, described electrode slice be usually located at this uncovered in so that when guaranteeing reliable shielding, make electrode slice be able to contact with human body effectively.
The outside of described screening can be provided with encapsulation usually with insulation material layer 2, so that described amplification treatment circuit and electrode slice are packaged together.
Described electrode wires extends to the outside of described encapsulation with insulation material layer usually, so that be connected with the equipment of electrode outside.
Described battery is usually located at outside the described shield shell, and described encapsulation is provided with the battery cavities lid that is used to that the battery cavities of described battery is installed and is used to seal described battery cavities with insulation material layer, so that the installation of battery and replacing.
Claims (10)
1. a noiseless electric physiological detection electrode comprises electrode slice, it is characterized in that also comprising the processing and amplifying module, and described electrode slice connects the signal output part of described processing and amplifying module.
2. noiseless electric physiological detection electrode as claimed in claim 1 is characterized in that described processing and amplifying module is provided with electrode wires and/or the radio transmitter that is used for signal output.
3. noiseless electric physiological detection electrode as claimed in claim 2 is characterized in that described processing and amplifying module is provided with impedance inverter circuit and amplifying circuit.
4. noiseless electric physiological detection electrode as claimed in claim 3 is characterized in that described impedance inverter circuit and amplifying circuit adopt the Low-Power CMOS operational amplifier.
5. noiseless electric physiological detection electrode as claimed in claim 4 is characterized in that described processing and amplifying module is provided with circumscripted power line and/or the battery that is used to power.
6. noiseless electric physiological detection electrode as claimed in claim 5 is characterized in that described battery is a button cell.
7. as claim 1,2,3,4,5 or 6 described noiseless electric physiological detection electrodes, it is characterized in that the outside of described processing and amplifying module is provided with shield shell.
8. noiseless electric physiological detection electrode as claimed in claim 7 is characterized in that described shield shell is provided with inwardly uncovered, and described electrode slice is arranged in that this is uncovered.
9. noiseless electric physiological detection electrode as claimed in claim 8 is characterized in that the outside of described screening can is provided with the encapsulation insulation material layer.
10. noiseless electric physiological detection electrode as claimed in claim 9, it is characterized in that described electrode wires extends to the outside of described encapsulation with insulation material layer, described encapsulation is provided with the battery cavities lid that is used to that the battery cavities of described battery is installed and is used to seal described battery cavities with insulation material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202839117U CN201752412U (en) | 2010-08-06 | 2010-08-06 | Electrode for non-interference electrophysiological detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202839117U CN201752412U (en) | 2010-08-06 | 2010-08-06 | Electrode for non-interference electrophysiological detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201752412U true CN201752412U (en) | 2011-03-02 |
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ID=43620143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202839117U Expired - Fee Related CN201752412U (en) | 2010-08-06 | 2010-08-06 | Electrode for non-interference electrophysiological detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201752412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283647A (en) * | 2011-07-05 | 2011-12-21 | 复旦大学 | Closed cornea electrode for visual electrophysiology detection |
| CN104382594A (en) * | 2014-11-18 | 2015-03-04 | 武汉格林泰克科技有限公司 | EEG (Electroencephalograph) electrode cap |
| CN110785636A (en) * | 2018-11-30 | 2020-02-11 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter |
-
2010
- 2010-08-06 CN CN2010202839117U patent/CN201752412U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283647A (en) * | 2011-07-05 | 2011-12-21 | 复旦大学 | Closed cornea electrode for visual electrophysiology detection |
| CN104382594A (en) * | 2014-11-18 | 2015-03-04 | 武汉格林泰克科技有限公司 | EEG (Electroencephalograph) electrode cap |
| CN104382594B (en) * | 2014-11-18 | 2016-08-24 | 武汉格林泰克科技有限公司 | Electrode for encephalograms cap |
| CN110785636A (en) * | 2018-11-30 | 2020-02-11 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter |
| WO2020107467A1 (en) * | 2018-11-30 | 2020-06-04 | 深圳市大疆创新科技有限公司 | Electromagnetic flow meter |
| CN110785636B (en) * | 2018-11-30 | 2021-11-26 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20140806 |
|
| EXPY | Termination of patent right or utility model |