CN204671156U - A kind of electrode for detecting ECG signal - Google Patents
A kind of electrode for detecting ECG signal Download PDFInfo
- Publication number
- CN204671156U CN204671156U CN201520296080.XU CN201520296080U CN204671156U CN 204671156 U CN204671156 U CN 204671156U CN 201520296080 U CN201520296080 U CN 201520296080U CN 204671156 U CN204671156 U CN 204671156U
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- China
- Prior art keywords
- electrode
- metal guide
- insulating disc
- guide electroplax
- hole
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
This utility model provides a kind of electrode for detecting ECG signal, and for detecting bioelectrical signals, particularly ECG signal, comprising: metal guide electroplax and insulating disc.Wherein insulating disc has many apertures, and is superimposed upon on metal guide electroplax.Insulating disc and metal guide electroplax are separated from each other, and keep constant spacing between the two.A small amount of conductive liquid is poured onto on electrode, fills all holes and the gap between insulating disc and metal guide electroplax on full insulating disc, and formation one deck is superimposed upon the conductive liquid on metal guide electroplax with constant thickness.
Description
Technical field
This utility model relates to electrocardiogram field, particularly relates to a kind of electrode, for detecting bioelectrical signals, and particularly ECG signal, and the electrocardiograph using this electrode.
Background technology
As far as is known road for detecting ECG signal instrument, comprise at least two outer electrodes.This outer electrode is placed on (such as left and right arm) on human body, the bioelectrical signals in detection bodies, and exports monitoring the result of bioelectrical signals out as cardiomotility.
Electrode is flat substantially, usually by electrode originally belt with it or binding agent be fixed on the health of people, improve the electrical contact between each electrode and human body, the place of this external electrode and human contact, applied the Signa Gel of thin layer in addition.Because Signa Gel is not applied on electrode equably, so the thickness of conductive gel layer is change, therefore can not ensure to keep optimum distance between electrode and human body.In fact, at some position of electrode, the gel layer of uneven gauge, makes the characteristic of the contact resistance instrument of generation not mate, thus is unfavorable for detecting electrocardiosignal.
And the fastening means of the above-mentioned type can not ensure the electrical contact closely of electrode and human body, the relative motion allowed in addition may cause the signal of telecommunication detected to occur noise, has even arrived the degree that can affect electrocardiograph Output rusults.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art, provides a kind of electrode, for detecting bioelectrical signals, particularly ECG signal, comprising: metal guide electroplax, insulating disc, conductive liquid, wherein metal guide electroplax has multiple through hole, for holding conductive liquid; Insulating disc has rigid structure, and is positioned at the opposite face of metal guide electroplax; Electrode can hold conductive liquid, makes it be distributed in through hole, and extends on metal guide electroplax, forms conduction liquid layer, insulating disc and the metal guide electroplax ohmic contact with constant thickness.
Further, described insulating disc is flat, rigidity.
Further, the described metal guide electroplax of described insulating disc and right opposite, at a distance of D, defines gap between described metal guide electroplax and described insulating disc, and described gap holds the conductive liquid from described through hole, and is uniformly distributed on described metal guide electroplax.
Further, the cross section of described through hole reduces gradually from metal guide electroplax described in the lateral of described electrode.
Further, described through hole is Frusto-conical.
Further, the cross section of described through hole is isosceles trapezoid.
Further, the average diameter of described through hole is 1.5mm.
Further, described insulating disc is discoidal.
Further, it is characterized in that, described metal guide electroplax is discoidal.
Further, it is characterized in that, described through hole is evenly arranged on concentrically ringed circumference.
The beneficial effects of the utility model comprise: the conductive liquid of constant thickness ensures to keep best distance between metal conductive plate and human body, thus guarantees that contact resistance is suitable for the characteristic of ECG signal detecting instrument.
Accompanying drawing explanation
Fig. 1 is the perspective view of electrode provided by the utility model;
Fig. 2 is the cross-sectional view of electrode provided by the utility model;
Fig. 3 is the front view of electrode provided by the utility model.
Symbol description:
1: the portable instrument 2 detecting electrocardiosignal: shell 3: circuit 4: rectangular surfaces 5: liquid crystal display 7,8 electrode 9,10: electric conductor 11: electric wire (bus) 13: the first dimple 15: sidewall 16: diapire 18: the second dimple 20: sidewall 22: diapire 24: through hole 26: axis 30: metal guide electroplax 30a: the first disk 30b: the second disk 30p: peripheral edge 32: the insulating disc 32a: the first disk 32b: the second disk 32p: peripheral edge 34: gap 35: through hole 40: conductive liquid P1: plane C1: the first circumference C2: the second circumference C3: the three circumference
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
As a kind of embodiment of the present utility model, consult Fig. 1, a kind of portable instrument 1 for detecting electrocardiosignal, comprises the shell 2 of a parallelepiped-shaped, and is placed on electronic processing circuit 3 (not illustrating) known in shell 2.Shell 2 comprises a flat rectangular surfaces 4, arranges a liquid crystal display 5 thereon, and two for detecting the electrode 7,8 of input signal.Rectangular surfaces 4 preferably adopts the material of insulation, especially plastic material.
Circuit 3 is used to process the bioelectrical signals picked up from patient's (not shown) with it, especially from the ECG signal that electrode 7 and 8 obtains, and processes this signal, then by the information displaying after process on display 5.The information wherein shown represents the cardiomotility situation (as heart rate, electrocardiogram mark etc.) of patient.Electrode 7,8 is communicated by each self-corresponding electric conductor 9,10 with circuit 3, and circuit 3 and display 5 then communicate via electric wire (bus) 11.
As can see from Figure 2 be electrode 7, the cross section of 8.Face 4 comprises a first circular dimple 13, its limit by cylindrical side wall 15; Circular second dimple 18 is formed by annular bottom wall 16, and coaxial with the first dimple 13; Other second dimple 18 limited by cylindrical side wall 20, and forms through hole 24 via diapire 22, and coaxial with the second dimple 18.In addition described each round-formed unified axis 26.
Each electrode 7,8 comprise a metal guide electroplax 30 (being such as made up of silver chloride), in its packed second dimple 18, and the peripheral edge 30p of conductor is fixed to (such as glued together) on diapire 22, to make on metal guide electroplax 30 first disk 30a towards face 4, and it is inner to point to housing 2, on metal guide electroplax 30, the second disk 30b points to housing 2 outside in addition.
Metal guide electroplax 30 thickness (measuring along axis 26) be less than the height (also measuring along axis 26) of described cylindrical side wall 20; Metal guide electroplax 30 can be placed in the electric conductor 9 in through hole 24 with part, 10 communicate.
Each electrode 7,8 also comprise an insulating disc 32 (referring to figs. 2 and 3), it is encapsulated in the first dimple 13, and the peripheral edge 32p of insulating disc 32 is fixed in annular wall 16.Insulating disc 32 is made (such as nylon) by the plastic insulation material of rigidity.And the first surface on insulating disc 32 is outside towards shell body 2, and the second disk 32b is inside towards housing 2.And second 32b on insulating disc 32 and the second disk 30b on right opposite metal guide electroplax 30 is at a distance of D.Defining between metal guide electroplax 30 and insulating disc 32 is highly the cylindrical gap 34 of D, and cylindrical gap 34 has identical diameter with the first dimple 13.
Insulating disc 32 comprises:
(1) along the quantity (such as 18) of the through hole 35 that the first circumference C1 arranges, wherein the first circumference C1 is coaxial with axis 26;
(2) along the quantity (such as 12) of the through hole 35 that the second circumference C2 arranges, wherein the second circumference C2 is coaxial with axis 26, and is positioned at relative to inside the first circumference C1;
(3) along the quantity (such as 6) of the through hole 35 that the 3rd circumference C3 arranges, wherein the 3rd circumference C3 is coaxial with the second circumference C2, and is positioned at relative to inside the second circumference C2;
(4) central through holes 35.
Wherein each through hole 35 is conical butts, there is the cross section of isosceles trapezoid, namely through-hole diameter diminishes from the first disk 32a insulating disc 32 gradually to the second disk 32b, and namely from electrode 7, the outside of 8 attenuates on the direction of metal guide electroplax 30.And the average diameter of each through hole 35 is about 1.5mm.
Electrode 7 is passed through, the through hole 35 on 8 and ft connection in gap 34.
As mentioned above, insulating disc 32 preferred plastic material, forms rigidity flat structure, and is non deformable on the direction perpendicular to plane P 1 (in by Fig. 2, arrow illustrates), and wherein plane P 1 is containing described metal guide electroplax (30).In actual use, a small amount of conductive liquid 40, particularly chlorination water, pour each electrode 7,8 (as shown in Figure 1) into, and run through through hole 35, fills full gap 34, and on metal guide electroplax 30 all with distribute.The specific part (part inwardly attenuated) of through hole 35 can contribute to entering of conductive liquid 40, and enters gap 34 to a certain degree also contributing to conductive liquid 40.
Conductive liquid 40 makes through hole 35 and gap 34 to reach information communication, and the expanded range of the conductive liquid in this external each through hole 35, can reach the whole height of through hole 35, even can reach coplanar 32a coplanar.
The inside of each electrode 7,8, all defines the conductive liquid 40 that a layer thickness is SL.This layer of conductive liquid 40 comprises the liquid in gap 34 and through hole 35, and thickness is altogether D+S, and wherein D is the height in gap 34, and S is the thickness of insulating disc 32.Because insulating disc 32 is substantially non deformable (particularly incompressible), in addition relative to acting on electrode 7, the load of 8, insulating disc 32 can be ignored completely towards the deviation on direction, gap 34, so thickness SL is constant substantially.
In actual use, for a part for human body, especially the front end pointed, be placed on second 32a of insulating disc 32, thus make the conductive liquid of a part for human body and endoporus 35 realize electric connection (Ohmic contact), and realize electric connection by the conductive liquid of constant thickness SL and metal guide electroplax 30.The conductive liquid of constant thickness ensures to keep best distance between metal conductive plate 30 and human body, thus guarantees that contact resistance is suitable for the characteristic of ECG signal detecting instrument.
Electrode 7,8 additionally provide for the rigid structure at contact part, by the relative motion of peventing member, produce hum when preventing electrode from picking up the signal of telecommunication.Obviously described herein and shown utility model, only otherwise exceed scope of the present utility model, suitable change allows.Such as there is ohmic chlorination water, can adopt and there is similar other liquid solution any with conductive characteristic.
Claims (10)
1. one kind for detecting the electrode of ECG signal, it is characterized in that, comprise: metal guide electroplax (30), insulating disc (32), conductive liquid (40), wherein metal guide electroplax (30) has multiple through hole (35), for holding conductive liquid (40); Insulating disc has rigid structure, and is positioned at the opposite face of metal guide electroplax (30); Electrode (7,8) conductive liquid (40) can be held, it is made to be distributed in through hole (35), and extend on metal guide electroplax (30), form conductive liquid (40) layer with constant thickness, insulating disc (32) and metal guide electroplax (30) ohmic contact.
2. electrode as claimed in claim 1, it is characterized in that, described insulating disc (32) is flat, rigidity.
3. electrode as claimed in claim 1, it is characterized in that, described insulating disc (32) is flat, rigidity, with described metal guide electroplax (30) D apart of right opposite, gap (34) is defined between described metal guide electroplax (30) and described insulating disc (32), and described gap (34) hold the conductive liquid (40) from described through hole (35), and are uniformly distributed on described metal guide electroplax (30).
4. electrode as claimed in claim 1, is characterized in that, the cross section of described through hole (35) reduces gradually from metal guide electroplax (30) described in the lateral of described electrode (7,8).
5. electrode as claimed in claim 1, it is characterized in that, described through hole (35) is Frusto-conical.
6. electrode as claimed in claim 1, it is characterized in that, the cross section of described through hole (35) is isosceles trapezoid.
7. electrode as claimed in claim 1, it is characterized in that, the average diameter of described through hole (35) is 1.5mm.
8. electrode as claimed in claim 1, it is characterized in that, described insulating disc (32) is discoidal.
9. electrode as claimed in claim 1, it is characterized in that, described metal guide electroplax (30) is discoidal.
10. electrode as claimed in claim 1, it is characterized in that, described through hole (35) is evenly arranged on concentrically ringed circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520296080.XU CN204671156U (en) | 2015-05-08 | 2015-05-08 | A kind of electrode for detecting ECG signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520296080.XU CN204671156U (en) | 2015-05-08 | 2015-05-08 | A kind of electrode for detecting ECG signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204671156U true CN204671156U (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520296080.XU Expired - Fee Related CN204671156U (en) | 2015-05-08 | 2015-05-08 | A kind of electrode for detecting ECG signal |
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| Country | Link |
|---|---|
| CN (1) | CN204671156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111214216A (en) * | 2020-04-22 | 2020-06-02 | 浙江乾行信息技术有限公司 | Acquisition device for acquiring heart rate based on micro-electrical signal change on palm surface |
-
2015
- 2015-05-08 CN CN201520296080.XU patent/CN204671156U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111214216A (en) * | 2020-04-22 | 2020-06-02 | 浙江乾行信息技术有限公司 | Acquisition device for acquiring heart rate based on micro-electrical signal change on palm surface |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160508 |