CN107296603A - A kind of electrode structure suitable for the biological electro-detection of noncontact single channel - Google Patents
A kind of electrode structure suitable for the biological electro-detection of noncontact single channel Download PDFInfo
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- CN107296603A CN107296603A CN201710631539.0A CN201710631539A CN107296603A CN 107296603 A CN107296603 A CN 107296603A CN 201710631539 A CN201710631539 A CN 201710631539A CN 107296603 A CN107296603 A CN 107296603A
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- electrode
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- single channel
- circuit
- signal acquisition
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 239000004744 fabric Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 230000036039 immunity Effects 0.000 abstract description 2
- 210000003141 lower extremity Anatomy 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
- A61B5/282—Holders for multiple electrodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B5/6802—Sensor mounted on worn items
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B5/6831—Straps, bands or harnesses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6891—Furniture
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Signal Processing (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physiology (AREA)
- Psychiatry (AREA)
- Cardiology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The present invention proposes a kind of electrode structure suitable for the biological electro-detection of noncontact single channel, including electrode A, electrode B and electrode C, wherein, electrode A is connected with signal acquisition circuit A, and electrode B is connected with signal acquisition circuit B, and electrode C is connected with Dolby circuit C；Signal acquisition circuit A and signal acquisition circuit B output is connected to Dolby circuit C input.The present invention is that the electrode structure of single channel non-contact biological electro-detection is realized by three electrodes, need to be located at human body right lower extremity different from driving electrodes in traditional driven-right-leg circuit, the position of noise reduction electrode C in the electrode structure can be close to acquisition electrode A or electrode B, so with being easy to assemble, suitable for wearable Medical Devices and the strong remarkable advantage of noise immunity.
Description
Technical field
The present invention relates to non-contact biological electrical signal detection field, more particularly to a kind of achievable non-contact biological electric signal
The electrode structure of detection.
Background technology
The demand of wearable Medical Devices causes the necessity more and more higher of non-contact testing human biological electricity.However, with
Exemplified by human ecg signal detection, the wearable health-oriented products of in the market can only realize complete electrocardio in the case where being in close contact with skin
The detection of signal.If realize the detection of the complete electrocardiosignal of noncontact, it is necessary to detecting system have hundred G Ω ultra-high input impedances and
Superpower noise inhibiting ability, this detection circuit, inspection software and acquisition electrode to detecting system be proposed it is very high will
Ask.
The ecg signal acquiring technology of more maturation is all to rely on driven-right-leg circuit to reduce noise, but the skill at present
Art is not particularly suited for miniaturization and portable wearable Medical Devices.
The content of the invention
In order to realize the non-contact biological electrical signal detection in wearable Medical Devices, the present invention proposes one kind and is applied to
The electrode structure of noncontact single channel bioelectrical signals detection.
The technical solution adopted by the present invention is as follows：
A kind of electrode structure suitable for the biological electro-detection of noncontact single channel, including electrode A, electrode B and electrode C, institute
State electrode A with signal acquisition circuit A to be connected, the electrode B is connected with signal acquisition circuit B, the electrode C and Dolby circuit C
It is connected；The output of the signal acquisition circuit A and signal acquisition circuit B are connected to the input of the Dolby circuit C.
Further, the area of the electrode C is more than the area of electrode A, also greater than the area of electrode B.
Further, the area of the electrode A and electrode B, size and shape are completely the same.
Further, the position of the electrode C and electrode A or electrode B are close.
Further, the material of the electrode A, electrode B and electrode C is conduction cloth, electric silica gel or compliant conductive
Material.
Further, the electrode A, electrode B and electrode C are fixed on scalable bandage, or are fixed on as accessory
Have with human body on the device directly or indirectly contacted.
The present invention realizes the electrode structure of single channel non-contact biological electro-detection by three electrodes, different from traditional right leg
Driving electrodes need the position for the noise reduction electrode C being located in human body right lower extremity, the electrode structure close can adopt in drive circuit
Colelctor electrode A or electrode B, so with being easy to assemble, suitable for wearable Medical Devices and the strong remarkable advantage of noise immunity.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1, in figure, 1- bandages, 2- electrode As, 3- electrode Bs, 4- electrodes C, 5-
Metal press-stud.
Fig. 2 is the structural representation of the embodiment of the present invention 2, in figure, and 6- washs cloth patch entirely.
Embodiment
To make the technical scheme of the invention that carried clearer, below in conjunction with the accompanying drawings and the specific embodiments to present invention progress
It is described in detail.
The detection of the especially suitable noncontact single channel electrocardiosignal of electrode structure of the present invention.Electrode structure includes three electricity
Pole：Electrode A 2, electrode B 3 and electrode C4.Electrode A 2, electrode B 3 are connected with signal acquisition circuit A and B respectively, obtain including power frequency
The useful signal of interference；Electrode C4 is connected with reduction Noise Circuits C, obtains anti-phase Hz noise.By two-way Acquisition Circuit
Output inputs Dolby circuit C simultaneously, and Hz noise is fed back into human body by electrode C4 after being handled via Dolby circuit C, you can
Be inhibited the useful signal of Hz noise in signal acquisition circuit A and Acquisition Circuit B output end.Wherein signal acquisition is electric
Road A and Acquisition Circuit B refer to the amplifying circuit for possessing high input impedance, and Dolby circuit C is substantially to provide negative-feedback to system
Amplifying circuit, passing through negative-feedback reduces the Hz noise that couples on human body.The electrode C4 bigger noise reduction of area is better, together
When, electrode C4 position can be placed on electrode A 2, around electrode B 3, be easy to the miniaturization of equipment.These three electrodes both can be with
It is fixed on scalable bandage, can also be worn on as accessory on clothing and other have what is directly or indirectly contacted with human body
On device, such as safety belt, seat and bed.
Embodiment 1
The present embodiment is a kind of thoracic cavity form of bandage suitable for noncontact ECG signal sampling, and structure is embodied such as in it
Fig. 1, is described as follows：
(1) it is the high cmrr of guarantee system, electrode A 2, the area of electrode B 3 and shape need are completely the same.
(2) electrode C4 is positioned parallel to electrode A 2, electrode B 3.
(3) for improve anti-acoustic capability, herein electrode C4 area be at least electrode A 2, twice of the area of electrode B 3, can root
It is adjusted according to needs or practical application.
(4) electrode A 2, electrode B 3, electrode C4 are fixed on elastic band, constitute the detection electrode of noncontact ECG detecting.
(5) electrode A 2, electrode B 3, electrode C4 material are plain weave silver fiber conductive fabric.
(6) scalable bandage one side is by mode fixed electrode A2, electrode B 3, the electrode C4 of sewing, and another side passes through primary and secondary
Metal press-stud 5 is connected and fixed test circuit system with each electrode.
Embodiment 2
The present embodiment is a kind of electrode form of clothing accessories formula suitable for noncontact ECG signal sampling, and it is specific real
Apply such as Fig. 2, be described as follows：
(1) be guarantee system high cmrr, electrode A 2, the area of electrode B 3 and shape be completely the same, position by
The specific pattern decision of accessory, can be into parallel relation or other positions relation.
(2) electrode C4 position electrode A 2 can be enclosed according to the specific pattern of decoration, around electrode B 3 or and this
Two electrodes are into parallel relation.
(3) electrode C4 area be at least electrode A 2, twice of the area of electrode B 3, can as needed again row expand.
(4) electrode A 2, electrode B 3, electrode C4 are fixed on full cloth of washing by metal press-stud 5 and pasted on 6, by adding as entirety
Temperature flatiron can be fixed on outside clothing, constitute the detection electrode of noncontact ECG detecting.
(5) electrode A 2, electrode B 3, electrode C4 material are flexible conducting material.
It should be noted that above-described embodiment, not for limiting protection scope of the present invention, in above-mentioned technical proposal
On the basis of the equivalents made or replacement and be extended for some improvement such as multichannel based on this and each fall within power of the present invention
Profit requires protected scope.
Claims (6)
1. a kind of electrode structure suitable for the biological electro-detection of noncontact single channel, including electrode A, electrode B and electrode C, it is special
Levy and be, the electrode A is connected with signal acquisition circuit A, the electrode B is connected with signal acquisition circuit B, the electrode C with
Dolby circuit C is connected；The output of the signal acquisition circuit A and signal acquisition circuit B are connected to the defeated of the Dolby circuit C
Enter.
2. a kind of electrode structure suitable for the biological electro-detection of noncontact single channel according to claim 1, its feature exists
In the area of the electrode C is more than the area of electrode A, also greater than the area of electrode B.
3. a kind of electrode structure suitable for the biological electro-detection of noncontact single channel according to claim 1, its feature exists
In the area of the electrode A and electrode B, size and shape are completely the same.
4. a kind of electrode structure suitable for the biological electro-detection of noncontact single channel according to claim 1, its feature exists
In the position of the electrode C and electrode A or electrode B are close.
5. a kind of electrode structure suitable for the biological electro-detection of noncontact single channel according to claim 1, its feature exists
In the material of the electrode A, electrode B and electrode C is conduction cloth, electric silica gel or flexible conducting material.
6. a kind of electrode structure suitable for the biological electro-detection of noncontact single channel according to claim 1, its feature exists
In, the electrode A, electrode B and electrode C are fixed on scalable bandage, or as accessory be fixed on human body have directly or
On the device of mediate contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631539.0A CN107296603A (en) | 2017-07-28 | 2017-07-28 | A kind of electrode structure suitable for the biological electro-detection of noncontact single channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631539.0A CN107296603A (en) | 2017-07-28 | 2017-07-28 | A kind of electrode structure suitable for the biological electro-detection of noncontact single channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107296603A true CN107296603A (en) | 2017-10-27 |
Family
ID=60133679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710631539.0A Pending CN107296603A (en) | 2017-07-28 | 2017-07-28 | A kind of electrode structure suitable for the biological electro-detection of noncontact single channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107296603A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113303774A (en) * | 2020-02-26 | 2021-08-27 | Oppo广东移动通信有限公司 | Wearable equipment |
| CN113662553A (en) * | 2021-08-03 | 2021-11-19 | 复旦大学 | Non-contact cardiopulmonary signal measurement system |
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| CN200942081Y (en) * | 2006-08-30 | 2007-09-05 | 深圳市科瑞康实业有限公司 | Rapid measuring electrocardiogram signals device |
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| US20170188830A1 (en) * | 2014-06-02 | 2017-07-06 | University Of Tsukuba | Electrodes for biopotential measurement, biopotential measuring apparatus, and biopotential measuring method |
| CN208339508U (en) * | 2017-07-28 | 2019-01-08 | 南京大学 | A kind of electrode structure suitable for non-contact single channel biology electro-detection |
-
2017
- 2017-07-28 CN CN201710631539.0A patent/CN107296603A/en active Pending
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| CN200942081Y (en) * | 2006-08-30 | 2007-09-05 | 深圳市科瑞康实业有限公司 | Rapid measuring electrocardiogram signals device |
| CN101889863A (en) * | 2009-05-21 | 2010-11-24 | 深圳市理邦精密仪器股份有限公司 | High-performance direct current amplification device for acquiring biological electric signals |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113303774A (en) * | 2020-02-26 | 2021-08-27 | Oppo广东移动通信有限公司 | Wearable equipment |
| CN113662553A (en) * | 2021-08-03 | 2021-11-19 | 复旦大学 | Non-contact cardiopulmonary signal measurement system |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171127 Address after: No. 163 Qixia Xianlin Avenue District of Nanjing City, Jiangsu province 210046 Applicant after: NANJING University Address before: No. 163 Qixia Xianlin Avenue District of Nanjing City, Jiangsu province 210046 Applicant before: Nanjing University Applicant before: NANJING RUISHA ELECTRONIC TECHNOLOGY CO.,LTD. |
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Application publication date: 20171027 |
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