CN102894967A - Medical body surface electrode with negative pressure hole in electrode auxiliary plate - Google Patents
Medical body surface electrode with negative pressure hole in electrode auxiliary plate Download PDFInfo
- Publication number
- CN102894967A CN102894967A CN2012104167033A CN201210416703A CN102894967A CN 102894967 A CN102894967 A CN 102894967A CN 2012104167033 A CN2012104167033 A CN 2012104167033A CN 201210416703 A CN201210416703 A CN 201210416703A CN 102894967 A CN102894967 A CN 102894967A
- Authority
- CN
- China
- Prior art keywords
- electrode
- negative pressure
- contact surface
- attached plate
- pressure hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The invention discloses a medical body surface electrode with a negative pressure hole in an electrode auxiliary plate. The medical body surface electrode comprises an electrode contact head 300, an electrode auxiliary plate 305, an electrode contact surface 301, negative pressure holes 304 and an auxiliary plate contact surface 311, wherein the electrode contact head 300 is a circular sheet; one face of the electrode contact head 300 is an electrode contact face 301; the electrode contact head 300 is fixed on the electrode auxiliary plate 305; the attached plate contact surface 311 is positioned outside the electrode contact surface 301; and the auxiliary plate negative pressure holes 304 are distributed on the auxiliary plate contact surface 311. Due to the adoption of the medical body surface electrode, the potential detection surface is reduced, accurate positioning is facilitated, and measuring errors and constructed defects are reduced.
Description
Technical field
The present invention relates to the medical body surface electrode of negative pressure hole on the electrode attached plate, relate to specifically the electrode that a kind of skin that adopts negative pressure to make tested tissue contacts with electrode contact surface, more particularly relate to the external electrode on the electrode attached plate that a kind of negative pressure hole is distributed in the electrode contact surface periphery.
Background technology:More in some electrode data, positioning accuracy request is higher and detect in the application of specific tiny area body surface electromotive force, such as in EIT and EIS imaging device, in order to guarantee the precision of imaging, just need a large amount of electrodes, and very high to the measurement and positioning required precision of electrode.
Electrode is put into when measuring the body surface electromotive force on the skin, if skin is under pressure, is stretched obvious deformation occurs, will change the CHARGE DISTRIBUTION of electrode skin contact, the body surface electromotive force that causes detecting changes, make to measure to be subject to severe jamming, strengthened measurement error and pseudo-shadow.
In organism surface potentiometry process, often need with
Body surfaceElectrode is fixed to and detects the position, and fixed form commonly used comprises two kinds, and a kind of is to adopt binding agent that electrode is sticked in position to be measured, another be utilize negative pressure with electrode adsorption in the detection position.Last type of electrode is not suitable for reusing, although then one type of electrode is fit to reuse, but this negative pressure is inhaled the ball electrode and is adopted bowl structure, be that electrode contact head 300 is bowl-shape, negative pressure hole 304 openings of electrode are in the electrode negative pressure cavity 308 of electrode contact head 300 bowl structure, and by electrode negative tube 303 and suction ball 306 UNICOMs, the electrode skin contact comprises electrode contact surface 301 and negative pressure contact surface 307, electrode contact surface 301 is bowl-shape edges of electrode, be circular, the annulus mid portion is negative pressure contact surface 307, when using kind electrode to detect, the electrode potential detection faces has comprised whole electrode skin contact, although the cross section of negative pressure hole 304 is very little, but the adsorption effect of electrode is subject to inhaling the restriction of bowl size, have to improve adsorption effect by enlarging the diameter of inhaling bowl, in order to reach good adsorption effect, the negative pressure contact surface 307 of electrode tip negative pressure cavity 308 correspondences in the suction bowl of suction ball electrode is greater than electrode contact surface 301, because negative pressure contact surface 307 is positioned at electrode contact surface 301 central authorities, although electrode contact surface 301 is less than the negative pressure contact surface 307 of centre, but be positioned at the central authorities of electrode contact surface 301 because of the negative pressure contact surface, therefore inhale the ball electrode detection to signal be to inhale the interior average body surface electric potential signal of circle that bowl edge and contact skin form, obviously increased the potentiometry face, kind electrode is unfavorable for detecting the accurate location at position.
Above-mentioned electrode is placed on the skin when measuring the body surface electromotive force, and the negative pressure contact surface is larger, and the skin histology in causing is in a big way stretched and deformation occurs, and the body surface electromotive force that the skin deformation that causes because stretching on a large scale causes changes the interference that has increased measurement; Electrode contact surface must bear larger pressure could form sealing, the suffered pressure of the skin that contacts with electrode contact surface is larger, skin is also just large to the interference of measuring because of the pressure deformation that compression face causes, simultaneously, the electrode skin contact is inhaled the impact of bowl edge place area and is difficult for accurately location.
Technical scheme
Electrode adopts negative pressure mode to be placed on the skinWhen measuring the body surface electromotive force,
In order to reduceThe interference that measured signal is subject to and convenient accurately location the invention provides
The medical body surface electrode of negative pressure hole on the electrode attached plate, negative pressure hole is distributed inOn the attached plate around the electrode contact surface, the negative pressure contact surface is positioned at the electrode contact surface periphery, when using this electrode detection,
The potentiometry face diminishes, and reduces tensile deformation and the pressure deformation of the skin of potentiometry face, is conducive to accurately location and reduction measurement error and pseudo-shadow.
The medical body surface electrode of negative pressure hole on the electrode attached plate, described electrode comprises the electrode contact head, electrode attached plate, electrode contact surface, negative pressure hole, attached plate contact surface; One side surface of electrode contact head is electrode contact surface, and the electrode contact head is fixed on the electrode attached plate, and the attached plate contact surface is positioned at outside the electrode contact surface, and negative pressure hole is distributed on the attached plate contact surface.
The medical body surface electrode of above-mentioned negative pressure hole on the electrode attached plate, described electrode contact surface and attached plate contact surface protrude the attached plate contact surface at same plane or electrode contact surface.
The medical body surface electrode of above-mentioned negative pressure hole on the electrode attached plate, described electrode comprises negative tube, negative pressure hole passes electrode attached plate and negative tube UNICOM.
The medical body surface electrode of above-mentioned negative pressure hole on the electrode attached plate, a certain position and the electrode leader connector of described electrode contact head except electrode contact surface is fixedly connected.
The medical body surface electrode of above-mentioned negative pressure hole on the electrode attached plate, described electrode attached plate is insulant.
The medical body surface electrode of above-mentioned negative pressure hole on the electrode attached plate, described electrode contact head is round sheet.
The medical body surface electrode of above-mentioned negative pressure hole on the electrode attached plate, described electrode
Contact surface is an outwardly sphere.
Beneficial effect: the present invention is by cooperating with negative pressure device, can realize reusing, the negative pressure in space, electrode contact surface place depends on the pressure difference of the air formation of taking away from this space, because electrode adsorption intensity is only relevant with the negative pressure that negative pressure device produces, and it is irrelevant with the concrete size of electrode, negative pressure hole is positioned at the attached plate contact surface of electrode contact surface periphery, and electrode contact surface increases with regard to the existence because of the negative pressure contact surface not, and is more much smaller than circular
, because ofDo not have negative pressure hole in the electrode contact surface, electrode contact surface just equals the potentiometry face; The suction ball electrode of relative background technology, same electrode contact surface, potentiometry face are that the signal area that electrode detects diminishes, thereby can realize accurate location and signal measurement to test point;
Negative pressure hole is opening around electrode contact surface, because electrode contact surface and attached plate contact surface are in same plane or electrode contact surface protrudes the attached plate contact surface, negative pressure makes skin contact with the attached plate contact surface, and electrode contact surface effectively contacts with the skin of measured position simultaneously, during useThe skin that electrode contact surface is corresponding does not have tensile deformation; The pressure that skin is subject on the potentiometry face obviously reduces, and the ratio that the skin deformation area accounts for electrode detection face area is little; Thereby the signal change that tensile deformation causes reduced, and the signal change that pressure deformation causes has reduced, and the interference that measured signal is subject to has also just diminished;
The present invention is conducive to accurately location and reduction measurement error and pseudo-shadow.
Negative pressure hole of the present invention refers to the micro-through-hole of opening on the attached plate contact surface around the electrode contact surface, these through holes can be under the depression generator effect, the air in space, electrode contact surface place is siphoned away and the skin of tested tissue is adsorbed onto on the electrode contact surface.
Of the present inventionThe negative pressure contact surface refers to that electrode is in user mode, the zone of more hypobaric air and contact skin in the negative pressure cavity in the electrode, the zone of negative pressure and contact skin namely, be exactly negative pressure contact surface 307 such as the electrode tip institute of inhaling in the background technology in the ball electrode to negative pressure cavity 308 corresponding skin surface positions, the corresponding skin surface of the negative pressure hole described in the technology of the present invention position is exactly the negative pressure contact surface;
DescribedElectrode contact surface
Refer toThe conductive surface of electrode/electrolyte junction face top electrode; Or refer to have conductive characteristic, contact the contact portion that can carry out signal extraction with human body;
DescribedThe potentiometry face refers to the electromotive force zone that electrode detects..
Description of drawings
Fig. 1: inhale ball electrode longitudinal section sketch map: a kind of negative voltage electrode of the prior art, dotted line is depicted as negative pressure contact surface 307 among the figure;
Fig. 2: the electrode contact surface front elevational schematic of electrode: around the electrode contact surface electrode attached plate is arranged, on the electrode attached plate negative pressure hole is arranged;
The A-A schematic cross-section of Fig. 3: Fig. 2;
Fig. 4: the electrode hood perspective view of installing electrodes;
Fig. 5: the electrode hood cross sectional representation of installing electrodes: the inwall around the electrode is the electrode attached plate
300-electrode contact head, the 301-electrode contact surface; The 302-pigtail splice, the 303-negative tube, the 304-negative pressure hole, 305-electrode attached plate, the 306-negative pressure is inhaled ball, 307-negative pressure contact surface, 308-electrode tip negative pressure cavity, 311-attached plate contact surface, 901-outer wall, the 902-mezzanine space, 903-inwall, 904-electrode, 905-negative pressure input port.
The specific embodiment
Embodiment 1:
The medical body surface electrode of negative pressure hole on the electrode attached plate comprises electrode contact head 300, electrode attached plate 305, electrode contact surface 301, negative pressure hole 304, attached plate contact surface 311; Electrode contact head 300 is round sheet, the one side of electrode contact head 300 is electrode contact surfaces 301, electrode contact head 300 is fixed on the electrode attached plate 305, attached plate contact surface 311 is positioned at outside the electrode contact surface 301, and negative pressure hole 304 is distributed on the attached plate contact surface 311 and passes electrode attached plate 305 to opposite side.
In embodiment 1, electrode contact surface 301 is on the same plane with attached plate contact surface 311.
In embodiment 1: if make electrode contact surface 301 protrude attached plate contact surfaces 311, more be conducive to contacting of electrode contact surface 301 and tested skin.
In embodiment 1, described negative pressure hole 304 passes electrode contact head 300 directly and pump-line UNICOM.
Electrode wires links to each other with electrode contact head 300 by pigtail splice 302, also can be welded on any position of the electrode contact head 300 of pigtail splice 302 1 sides.
Embodiment 1 described electrode, the negative pressure hole 304 that distributes on the electrode attached plate 305 form negative pressure around just can making electrode contact surface 301, and the skin of absorption tested tissue is attached on the electrode contact surface.
The air in space, embodiment 1 described electrode electrode contact surface 301 place is taken away by the negative pressure hole 304 on the electrode attached plate, in the contact surface of electrode attached plate 305 and tested tissue negative pressure hole institute over against skin surface formation negative pressure contact surface, the negative pressure contact surface is positioned at the electrode contact surface periphery, and the negative pressure contact surface does not affect the size of potentiometry face.
Embodiment 2:
This enforcement basic scheme is with implementing 1, and difference is: described electrode comprises negative tube 303, and negative tube 303 is fixed on the electrode attached plate 305, and negative pressure hole 304 passes electrode attached plate 305 and negative tube 303 UNICOMs.When using the electrode amount, negative tube 303 is that dress UNICOM occurs negative pressure with air extractor.
Embodiment 3: the electrode contact head 300 of electrode is made spheroidal, and it simultaneously is electrode contact surface 301, and electrode contact surface 301 is sphere, the leaded joint 302 of fixed connection on the back side of electrode contact surface 301; Above-mentioned electrode is fixed in the insulation cup that can produce negative pressure, opposite side at electrode contact head 300, namely electrode contact surface 301 one side behind and the inner surface fixed connection of the negative pressure cover of electrode, electrode contact surface 301 protrudes the inner surface of insulation cup, fixedly the cover wall of negative pressure cover is exactly the electrode attached plate here, the outer negative tube UNICOM of negative pressure hole and negative pressure cover is arranged on the inner surface of negative pressure cover, under suction function, the pressure of tested tissue inside is greater than the air pressure in space, electrode contact surface 301 place, and tested tissue expands and its skin is contacted with electrode contact surface 301.The negative pressure contact surface is positioned at the periphery of electrode contact surface, the negative pressure contact surface does not affect the size of potentiometry face, the signal area no longer is that the cylindrical of annulus is with interior skin, but consistent with the shape of electrode contact surface 301, the size of potentiometry face just equals the size of electrode contact surface 301, onesize electrode contact surface, the electric potential signal zone diminishes, and is conducive to signal framing.
In embodiment 3, the electrode contact head 300 of electrode can be made the semicircle sphere, and electrode contact surface 301 is sphere, and electrode contact head 300 opposite sides can be made the plane, conveniently pastes electrode attached 305 and namely covers on the wall.
If the electrode attached plate is not insulant, the contact portion in electrode contact head 300 and electrode attached plate 305 should have insulating barrier to stop them mutually to conduct electricity at least.
If embodiment 3 described electrodes are installed on the inwall of negative pressure cover, in one plane the time, electrode attached plate 305 can not reduce the tensile deformation of tested skin for electrode contact surface and negative pressure cover wall.
Embodiment 3: present embodiment basic scheme is with embodiment 2, and difference is: electrode attached plate 305 also is conductive material.When embodiment 3 described electrode attached plates 305 are conductive material, electrode attached plate 305 can both be conducted electricity with electrode contact surface 301, this moment, the electrode detection face was: the contact surface of electrode attached plate 305 and electrode contact surface 301 and skin, the cross section of the negative pressure hole that distributes on the electrode attached plate 305 is the negative pressure contact surface, the negative pressure contact surface is much smaller than electrode contact surface, the potentiometry face does not obviously increase because of the existence of negative pressure contact surface, very little because of the diameter of negative pressure hole in addition, 305 pairs of electrode attached plates are subjected to the skin of negative-pressure adsorption to form support, and skin is just little because of the deformation that stretching causes.
Embodiment 4: this example is concrete application example of the present invention.The electrode inspector that is used for the EIT breast imaging, be hollow sandwich 902 between diagram electrode negative pressure cover outer wall 901 and the inwall 903, outside negative pressure device is input to negative pressure in the hollow sandwich 902 by negative pressure input port 905, the diagram electrode is electrode 904 of the present invention, electrode 904 is installed on the electrode hood inwall 903, negative pressure in the electrode hood hollow sandwich 902 is delivered to measured target and space by the negative pressure hole 304 on the electrode 904, realization is to the absorption of measured target, the electrode contact surface 301 of electrode 904 is closely abutted on the measured target, thereby realize effectively picking up of signal.
At embodiment 5:
With embodiment 4, difference is: inwall 903 is exactly the electrode attached plate 305 described in the embodiment 1-3 in the basic scheme of embodiment for this, inwall 903 be exactly the inner surface described in the embodiment 1-3 be exactly attached plate contact surface 311.
In embodiment 5, do not have negative pressure hole on the electrode contact surface 301 of the electrode 904 of installing, the inwall 903 around electrode 904 is offered negative pressure hole 304, at this moment, inwall 903 just is equivalent to the electrode attached plate that insulate, also can realize the purpose to measured target absorption.
In the above-described embodiments, described electrode attached plate preferred insulative material, insulant can be selected nonconducting under the upper insulant, particularly normal temperature and pressure of generally acknowledging of electrician and can keep the insulant of its shape: such as insulating rubber slab, micarex, plastic plate etc.
Embodiment 5: present embodiment basic scheme is with implementing 1,2, or 3, difference is: a plurality of electrode contact heads 300 are fixed on the same electrode attached plate 305, the shape of electrode attached plate 305 inner surfacies can change according to the shape of measurand outer surface, and the mutual alignment relation between each electrode contact head 300 can be fixing respectively on electrode attached plate contact surface according to detecting needs.
In above-described embodiment, described attached plate contact surface is generally and the consecutive plane of electrode contact surface, according to the used environment of electrode, the shape of attached plate contact surface 311 can have certain variation, is exactly the electrode attached plate that the attached plate contact surface has certain bending such as the cup inwall 903 among the embodiment 4.
Claims (7)
1. the medical body surface electrode of negative pressure hole on the electrode attached plate, be characterised in that: described electrode comprises electrode contact head (300), electrode attached plate (305), electrode contact surface (301), negative pressure hole (304), attached plate contact surface (311); One side surface of electrode contact head (300) is electrode contact surface (301), electrode contact head (300) is fixed on the electrode attached plate (305), attached plate contact surface (311) is positioned at outside the electrode contact surface (301), and negative pressure hole (304) is distributed on the attached plate contact surface (311).
2.
The medical body surface electrode of negative pressure hole according to claim 1 on the electrode attached plate, be characterised in that: described electrode contact surface (301) protrudes attached plate contact surface (311) with attached plate contact surface (311) at same plane or electrode contact surface (301).
3.
The medical body surface electrode of negative pressure hole according to claim 1 and 2 on the electrode attached plate, being characterised in that described electrode comprises negative tube (303), negative pressure hole (304) passes electrode attached plate (305) and negative tube (303) UNICOM.
4.
The medical body surface electrode of negative pressure hole according to claim 3 on the electrode attached plate, be characterised in that: a certain position and the electrode leader connector (302) of described electrode contact head (300) except electrode contact surface (301) is fixedly connected.
5.
The medical body surface electrode of negative pressure hole according to claim 3 on the electrode attached plate, be characterised in that: described electrode attached plate (305) is insulant.
6.
The medical body surface electrode of negative pressure hole according to claim 5 on the electrode attached plate, be characterised in that: described electrode contact head (300) is round sheet.
7.
The medical body surface electrode of negative pressure hole according to claim 5 on the electrode attached plate, be characterised in that: described electrode
Contact surface (301) is an outwardly sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210416703.3A CN102894967B (en) | 2012-10-28 | 2012-10-28 | Negative pressure hole medical body surface electrode in electrode attached plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210416703.3A CN102894967B (en) | 2012-10-28 | 2012-10-28 | Negative pressure hole medical body surface electrode in electrode attached plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102894967A true CN102894967A (en) | 2013-01-30 |
| CN102894967B CN102894967B (en) | 2016-06-15 |
Family
ID=47567673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210416703.3A Active CN102894967B (en) | 2012-10-28 | 2012-10-28 | Negative pressure hole medical body surface electrode in electrode attached plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102894967B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042134A (en) * | 2018-01-12 | 2018-05-18 | 思澜科技（成都）有限公司 | A kind of probe and system for bio-electrical impedance test |
| CN108523880A (en) * | 2018-06-22 | 2018-09-14 | 广东脉搏医疗科技有限公司 | Electrocardioelectrode, cardioelectric monitor wearable device and cardioelectric monitor system |
| CN108742593A (en) * | 2018-06-22 | 2018-11-06 | 广东脉搏医疗科技有限公司 | Cardioelectric monitor wearable device and cardioelectric monitor system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4646747A (en) * | 1983-10-28 | 1987-03-03 | Astra-Tech Aktiebolag | Electrode for electrocardiographic examinations |
| WO1996001077A1 (en) * | 1994-07-01 | 1996-01-18 | Humanteknik Ab | An interface element for a biomedical electrode |
| CN201320169Y (en) * | 2008-12-22 | 2009-10-07 | 常州市第一人民医院 | Electrocardiogram chest lead electrode |
| CN201542632U (en) * | 2009-11-04 | 2010-08-11 | 常州市第一人民医院 | Electrocardiogram chest lead electrode |
| CN201987552U (en) * | 2011-03-03 | 2011-09-28 | 王惠新 | Adsorption electrode for electrocardiogram machine |
| CN202821332U (en) * | 2012-10-28 | 2013-03-27 | 思澜科技（成都）有限公司 | Medical body surface electrode of negative pressure hole on electrode attaching plate |
-
2012
- 2012-10-28 CN CN201210416703.3A patent/CN102894967B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4646747A (en) * | 1983-10-28 | 1987-03-03 | Astra-Tech Aktiebolag | Electrode for electrocardiographic examinations |
| WO1996001077A1 (en) * | 1994-07-01 | 1996-01-18 | Humanteknik Ab | An interface element for a biomedical electrode |
| CN201320169Y (en) * | 2008-12-22 | 2009-10-07 | 常州市第一人民医院 | Electrocardiogram chest lead electrode |
| CN201542632U (en) * | 2009-11-04 | 2010-08-11 | 常州市第一人民医院 | Electrocardiogram chest lead electrode |
| CN201987552U (en) * | 2011-03-03 | 2011-09-28 | 王惠新 | Adsorption electrode for electrocardiogram machine |
| CN202821332U (en) * | 2012-10-28 | 2013-03-27 | 思澜科技（成都）有限公司 | Medical body surface electrode of negative pressure hole on electrode attaching plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042134A (en) * | 2018-01-12 | 2018-05-18 | 思澜科技（成都）有限公司 | A kind of probe and system for bio-electrical impedance test |
| CN108523880A (en) * | 2018-06-22 | 2018-09-14 | 广东脉搏医疗科技有限公司 | Electrocardioelectrode, cardioelectric monitor wearable device and cardioelectric monitor system |
| CN108742593A (en) * | 2018-06-22 | 2018-11-06 | 广东脉搏医疗科技有限公司 | Cardioelectric monitor wearable device and cardioelectric monitor system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102894967B (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110061269B (en) | Online measuring device for current density and gas pressure distribution in fuel cell stack | |
| CN108387171B (en) | Flexible probe for detecting roughness based on capacitance method and roughness algorithm thereof | |
| CN102894967A (en) | Medical body surface electrode with negative pressure hole in electrode auxiliary plate | |
| CN102961128B (en) | A kind of medical body surface electrode | |
| CN105548288A (en) | Three-dimensional multi-direction detection flame sensor based on electrical capacitance tomography and detection system | |
| CN203275586U (en) | Withstand voltage testing device of thin film capacitor | |
| CN106404843A (en) | Electrical measurement based four-point type nondestructive test probe with adaptive adjustment | |
| CN202821332U (en) | Medical body surface electrode of negative pressure hole on electrode attaching plate | |
| CN108344781B (en) | Battery testing device | |
| CN110398690A (en) | Three electrode testing devices | |
| CN206772963U (en) | A kind of Portable running water factory water pH value detection pen | |
| CN108050925A (en) | A kind of polymer soft-package battery battery core thickness monitor system and method | |
| CN107576854A (en) | A kind of interdigital concentric circles MEMS low conductivities sensor of band and application method | |
| CN202960495U (en) | Medical body surface electrode | |
| CN204462065U (en) | A kind of hand-held capacitance imaging probe | |
| CN213843473U (en) | Lithium battery charging and discharging testing device | |
| CN202426523U (en) | Electrocardiogram chest lead electrode | |
| US11622704B2 (en) | Pressure-compensating non-invasive blood-component measurement | |
| CN209264821U (en) | A kind of Portable insulation material surface conductivity measuring apparatus | |
| CN108007980A (en) | A kind of lubricating oil product quality detection capacitive sensing probe | |
| CN208313214U (en) | A kind of flexible probe based on capacitance method detection roughness | |
| CN208795688U (en) | Dielectric film electrochemical impedance spectroscopy test device and electrochemical test system | |
| CN109991482A (en) | The simulation electrode device of cable insulation space charge detection | |
| CN109959823B (en) | High-precision lithium ion battery negative pole piece lithium embedding impedance measurement clamp and method | |
| CN207798884U (en) | A kind of novel capacitor detection fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |