CN207821817U - A kind of electrode structure for biological impedance - Google Patents
A kind of electrode structure for biological impedance Download PDFInfo
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- CN207821817U CN207821817U CN201720835122.1U CN201720835122U CN207821817U CN 207821817 U CN207821817 U CN 207821817U CN 201720835122 U CN201720835122 U CN 201720835122U CN 207821817 U CN207821817 U CN 207821817U
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- electrode
- protective case
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- biological impedance
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Abstract
The utility model is related to a kind of electrode structures for biological impedance, including：Electrode; the electrode includes the electrode tip contacted with tissue; and protective case; for an insulation cylindrical shell, one end is first open without bottom surface, and the electrode sleeve is set in protective case; it is contactless with protective case; and it is consistent with protective case axial direction, for the electrode tip close to the first opening, the electrode tip is located in protective case or flushes or exceed with the first opening the first opening.The electrode structure in use, will not cause the damage to tissue samples, while there will not be tissue fluid and sticking on substrate, effectively improve the accuracy of biological impedance.
Description
Technical field
The utility model belongs to biological impedance field more particularly to a kind of electrode knot for biological impedance
Structure.
Background technology
Bio-impedance technique be it is a kind of utilize the electrical characteristics and its changing rule of biological tissue and organ extraction with human body give birth to
Reason, the detection technique of the relevant biomedical information of pathological condition.It is generally by being placed in the electrode system of body surface to detection
Object is sent into a small AC measurment current or voltage, detects corresponding electrical impedance and its variation.Currently, common two types
Electrode structure carry out the detection of bio-impedance, it is a kind of as shown in Figure 1, electrode 100 is fixed on substrate 300, and substrate 300 with
Organize have one section of relatively long distance between the electrode tip 101 of contact, usually in 5mm or more, electrode 100 is in the bio-impedance to tissue
It is easily inserted into organization internal when measuring, destroys tissue samples, and then influence test result；Such as another kind as shown in Fig. 2, electrode
110 on substrate 310, but the electrode tip 111 contacted with tissue only exposes 310 a small distance of substrate, usually in 1mm
Within, for the electrode 110 of this type in the measurement process for carrying out bio-impedance to tissue, tissue mucus is easily adhered to substrate
On 310, the insulation between electrode is destroyed to form interference to the measurement of impedance.Therefore, in the bio-impedance survey to tissue
In amount, it is the key that accurate measurement bio-impedance that measurement interference how is reduced under the premise of not destroying tissue samples.
Utility model content
For shortcomings and deficiencies existing for the existing electrode for measuring bio-impedance, the purpose of this utility model is to provide one
Electrode structure of the kind for biological impedance, the electrode structure in use, will not cause the damage to tissue samples,
It there will not be tissue fluid adhesion on the electrode substrate simultaneously, solve the above problem, effectively improve the accurate of biological impedance
Property.
The technical solution adopted in the utility model is as follows：
A kind of electrode structure for biological impedance, including：
Electrode, including the electrode tip contacted with tissue；And
Protective case, for an insulation cylindrical shell, one end of the insulation cylindrical shell is one open without bottom surface, which is the
One is open；
The electrode sleeve is set in protective case, contactless with protective case and consistent with protective case axial direction, the electrode
Close to the first opening, the electrode tip is flushed with the first opening or interior but distance first is open positioned at protective case one on top
Segment distance is either open outside protective case beyond first.
Further, the protective case is transparent and does not deform upon, and the first opening of protective case contacts not with test serum
It deforms upon, and to one tension of test serum to make test serum form a measuring surface, and can be observed directly from outside
Contact situation of the internal electrode with test serum.
Further, a kind of electrode structure for biological impedance, further includes substrate, and the electrode is embedded in base
On plate.
Preferably, the protective case is cylindrical shell, which is opening without bottom surface, wherein one is open
Open for described first, another open open for second, the substrate is circle, and size is open consistent with described second,
It overlaps with second open position, and is fixedly connected with the inner surface of the protective case, just seal the second opening.
Further, the electrode is array electrode, and the distance of each electrode tip to the first opening is identical.
Preferably, the array electrode is rectangular four electrod-array.
Preferably, the electrode tip at a distance from the first open plane within 1mm.
Preferably, the electrode tip to the distance of substrate in 5mm or more.
The utility model is partially formed smooth measurement plane in measured organization by protective case, avoids electrode insertion group
Interior destruction sample is knitted, and reduces the infiltration of tissue between the electrodes, while electrode base board being avoided to be polluted by tissue, and then reduces and surveys
Deviation is measured, and easy to operate.
Description of the drawings
Fig. 1 is a kind of common electrode structural profile illustration for biological impedance；
Fig. 2 is another common electrode diagrammatic cross-section for being used for biological impedance；
Fig. 3 is the stereoscopic schematic diagram of the first embodiment of the utility model electrode structure；
Fig. 4 is the right view of the first embodiment of the utility model electrode structure；
Fig. 5 is the diagrammatic cross-section of the first embodiment of the utility model electrode structure；
Fig. 6 is the diagrammatic cross-section of second of embodiment of the utility model electrode structure；
Fig. 7 is the diagrammatic cross-section of the third embodiment of the utility model electrode structure.
Specific implementation mode
Now currently, the biological impedance for being directed in vitro tissue generally selects electrode structure shown in fig. 1 or fig. 2, Fig. 1
Shown in electrode structure destructible tissue during the test, electrode structure shown in Fig. 2 then easy adhesion group on the electrode substrate
Liquid is knitted, and then influences the accuracy of test result.The utility model proposes a kind of electrode structure for biological impedance, with
Lower specification is only the preferred embodiment of the utility model, does not therefore limit the scope of protection of the utility model.
Embodiment one
As shown in Figures 3 to 5, the utility model provides a kind of electrode structure for biological impedance, the electrode
Structure includes electrode 1, protective case 2, substrate 3, and electrode 1 is rectangular four electrod-array, and each electrode length is consistent, on substrate 3,
The part that electrode 1 is contacted with tissue is electrode tip 11, in 5mm or more, protective case 2 is the distance of electrode tip 11 to substrate 3
One clear hard cylindrical dielectric shell, both ends are opening, are the first opening 21 and second opening 22 respectively, in the present embodiment
First opening 21 and the second opening 22 are circle of the same size.The shape size of substrate 3 and the second opening 22 are unanimously to justify
Shape, while substrate 3 is overlapped with the second open position, substrate is fixedly connected with the inner surface of protective case 2, just by the second opening 22
It seals.Electrode 1 is sheathed on inside protective case 2, and consistent with 2 axial direction of protective case, and electrode tip 11 is spacious with protective case first
Mouth 21 is generally aligned in the same plane.When 1 contact measured in vitro tissue of electrode, the first opening 21 is contacted with tissue local, passes through first
Opening 21 is applied to the tension of local organization and measures plane to form one, and electrode tip 11 and the first opening 21 are located at same flat
Face can avoid causing sample damage in electrode tip insertion tissue in biological impedance.
Embodiment two
Fig. 6 shows a kind of second of embodiment party of electrode structure for biological impedance provided by the utility model
Formula is that electrode 1 exceeds the first opening 21 with the main distinction of the first embodiment, and electrode tip 11 is exposed to protective case 2
The distance of outside, the open 21 place planes of electrode tip 11 to the first is no more than 1mm.For part concave in vitro tissue
Face, in biological impedance, it is in a plane that the first opening 21, which can make partial face as possible, exceeds the electrode tip of the first opening 21
11 also can complete test with being contacted at spill.
Embodiment three
Fig. 7 shows a kind of the third embodiment party of electrode structure for biological impedance provided by the utility model
Formula is that electrode 1 is without departing from the first opening 21, electrode tip 11 with the main distinction of second of embodiment of the first grade
In in protective case 2, the distance of the open 21 place planes of electrode tip 11 to the first is no more than 1mm.For being in convex in vitro tissue
The partial face of shape, in biological impedance, it is in a plane that the first opening 21, which can make partial face as possible, beyond the first open electricity
Pole top 11 also can complete test with being contacted at convex.
It should be noted that the utility model is not limited to above-mentioned three kinds of embodiments.For example, in embodiment, protecting
Sheath 2 can not be fixedly connected with substrate 3, but the back-end device fixed position by being connect with this electrode.In art technology
Personnel within the scope of knowledge, can also make many variations to it.
Claims (7)
1. a kind of electrode structure for biological impedance, including：
Electrode, the electrode include the electrode tip contacted with tissue；
Substrate, the electrode is on substrate；
Protective case, the protective case are an insulation cylindrical shell, and the insulation cylindrical shell both ends are opening, respectively first
Open and the second opening；
The size of substrate is open consistent with described second, and is overlapped with the second open position, the substrate and the protective case
Inner surface be fixedly connected, just second opening is sealed, the electrode sleeve is set in protective case, with protective case without connecing
Touch, and it is consistent with protective case axial direction, the electrode tip close to the first opening, the electrode tip be located at protective case it is interior or
It is flushed with the first opening or open beyond first.
2. a kind of electrode structure for biological impedance according to claim 1, which is characterized in that the protective case
It is transparent and do not deform upon.
3. a kind of electrode structure for biological impedance according to claim 2, which is characterized in that the protective case
For cylindrical shell, the substrate is circle.
4. a kind of electrode structure for biological impedance according to claim 3, which is characterized in that the electrode is
The distance of array electrode and each electrode tip to the first opening is identical.
5. a kind of electrode structure for biological impedance according to claim 4, which is characterized in that the array electricity
Extremely rectangular four electrod-array.
6. a kind of electrode structure for biological impedance according to claim 4, which is characterized in that electrode top
End is at a distance from the first open plane within 1mm.
7. a kind of electrode structure for biological impedance according to claim 4, which is characterized in that electrode top
Hold the distance of substrate in 5mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720835122.1U CN207821817U (en) | 2017-07-11 | 2017-07-11 | A kind of electrode structure for biological impedance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720835122.1U CN207821817U (en) | 2017-07-11 | 2017-07-11 | A kind of electrode structure for biological impedance |
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| Publication Number | Publication Date |
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| CN207821817U true CN207821817U (en) | 2018-09-07 |
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| CN201720835122.1U Active CN207821817U (en) | 2017-07-11 | 2017-07-11 | A kind of electrode structure for biological impedance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292382A (en) * | 2019-05-31 | 2019-10-01 | 海口市人民医院 | A kind of brain injury animal model building composition monitoring device |
-
2017
- 2017-07-11 CN CN201720835122.1U patent/CN207821817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292382A (en) * | 2019-05-31 | 2019-10-01 | 海口市人民医院 | A kind of brain injury animal model building composition monitoring device |
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