CN1016941B - Vacuum fixed and stabilized electrode - Google Patents
Vacuum fixed and stabilized electrodeInfo
- Publication number
- CN1016941B CN1016941B CN 85101834 CN85101834A CN1016941B CN 1016941 B CN1016941 B CN 1016941B CN 85101834 CN85101834 CN 85101834 CN 85101834 A CN85101834 A CN 85101834A CN 1016941 B CN1016941 B CN 1016941B
- Authority
- CN
- China
- Prior art keywords
- lead plate
- battery lead
- back seat
- electrode
- fixed electrode
- 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.)
- Expired
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- Electrotherapy Devices (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The present invention relates to an electrode; for example, the electrode is used for electrocardiogram measurement. The electrode is fixed on a proper position by suction force. The electrode comprises a rigid rear seat (3), a middle part (2) and an electrode plate (1), wherein the middle part (2) is composed of elastic materials; the electrode plate (1) is made of plastic plated with silver layers. The electrode is stuck on the skin of a patient by a sealing lip (13) in a use state. The electrode plate (1) is firmly connected to the rear seat. When load is added on the sealing lip on a sealing ring, the ring is outwairds pushed, and a vacuum valve is automatically turned off by the middle part. When the electrode is stuck on the surface of the skin, the valve is opened again, and as a result, the electrode is firly fixed by the suction force.
Description
The present invention relates to a kind of electrode, be meant employed electrode when making electrocardiogram (ECG) especially, kind electrode comprises: a conductive electrode plate 1, contact surface 4 before the one side has one and one adnexa 5 is arranged at its opposition side; One inflexible back seat 3, this battery lead plate 1 is fixed in back seat 3 by adnexa 5, and this back seat 3 comprises a vacuum coupling 8; With a potted component 2, it comprise a cyclic sealing ring 9 with the relation of spacing be centered around battery lead plate 1 around limiting a vacuum chamber, and sealing element 2 can be axially with respect to battery lead plate 1 towards back seat 3 with leave back seat 3 and move.
This class electrode is learnt from austrian patent description № 248608.This known electrode is adsorbed by vacuum means, and this vacuum is provided by a pipe that links to each other with electrode.Auxiliary valve when using vacuum when electrode is thrown off, keeps closing, and in the time of using electrode, valve is opened automatically, and valve is when closing automatically, and electrode should be thrown off.According to its described embodiment, by means of a flexible sheet that is attached in the O-ring seal, battery lead plate is subjected to elastic pressure.When battery lead plate is forced on patient's the skin, form vacuum in the cavity around the valve open, electrode, vacuum range is determined by sealing ring.
Flexible sheet allows the axially-movable of battery lead plate rotation and edge sealing.Unfortunately, we find that electrode comes off easily, unless vacuum is very high, promptly maintains the suction standard of regulation owing to this freedom of motion.Secondly, can not guarantee that keeping of electrode pressure is constant, therefore, whether the electrical property of electrode lies tranquil closely relatedly with patient.Very little change all is enough to contact resistance is changed, and for example causes baseline to become unstable and change, and also can change on grapher with respect to the electrocardiogram of this baseline.Therefore, this vacuum that produces by the means that suction device is installed at the center is attached to patient's method on one's body with electrode, thisly relates to multiple electrode, all has the method for superiority not to be used widely actually and in theory.
The purpose of this invention is to provide a kind of electrode of having described in foreword, kind electrode will keep firm position, finish the task of expectation simultaneously again better.This kind electrode can be attached on one's body the patient securely, although during checking patient may move also harmless; It can also be avoided because surperficial contact pressure changes the baseline change that causes.Use kind electrode in patient's motion, to finish heart function experiment, and finish some and wish the test of doing from diagnosing the angle utmost point.But, use routine techniques to be difficult to finish, therefore in the usual way step, can not have this characteristics.
According to electrode of the present invention, can realize purpose and the superiority thereof invented.It is characterized in that of this kind electrode,
1) sealing part 2 comprises:
One annular seal lip 14, it be connected with the described opposition side of battery lead plate 1 with its formation one valve, this valve separates the vacuum coupling 8 of back seat 3 with the vacuum chamber that is limited by sealing ring 9; And
One valve operation parts, it sealing lip 14 is connected with sealing ring 9 and also by biasing to impel the described opposition side of sealing lip 14 against battery lead plate 1, and these valve operation parts can be operated towards the axial displacement of back seat 3 resistance bias voltages by sealing ring 9, so that sealing lip 14 breaks away from battery lead plate 1, thereby open valve, so that vacuum chamber is in the state that is communicated with vacuum coupling 18.
Some good embodiment are further characterized in that:
2) battery lead plate 1 and potted component 2 removably and are interchangeably fixed by back seat 3.
3) sealing element 2 is elastic single-piece parts;
The valve operation parts of sealing element 2 comprise a diaphragm portion, and it extends between sealing lip 14 and sealing ring 9 and a core 10 that has centre bore 18, and running through this hole 18 has one to be arranged on the opposition side of battery lead plate 1 and the handle of formation parts 5;
Back seat 3 has a socket 6, and it can hold the end of dividing the handle 5 that 10 side stretches out from central division, and this side is battery lead plate 1 dorsad; With
Shank portion that stretches out and socket combined effect are fixed on the back seat 3 battery lead plate 1 and potted component separably.
4) potted component 2 is included in its annular resilient flange 17 that has free periphery on side of battery lead plate 1 dorsad, and it can engage with back seat 3;
The core 10 of potted component 2 engages back seat 3 hermetically along an annular seal device 15, and in the inside of annular seal device 15 and annular seal lip 14, is provided with an all-pass endoporus 11 that fixedly is communicated with vacuum coupling 8 at least.
5) diaphragm portion of potted component 2 is provided with an outer hole 12 of all-pass that is positioned at the outside of annular seal device 15 and annular seal lip 14 on it at least, and
Annular resilient flange 17 engages back seat 3 hermetically, so that an annulus is limited at and is back seat 3 on the one hand and is between the potted component 2 on the other hand, this space fixedly is communicated with vacuum chamber by outer hole 12.
6) sealing ring 9 extends to more than the preceding contact surface 4 of battery lead plate 1 forward.
7) the preceding contact surface 4 of battery lead plate 1 is a concave surface.
8) the preceding contact surface 4 of battery lead plate 1 is provided with a plurality of little projectioies.
9) handle 5 and socket 6 constitute a quick-action coupling mechanism.
10) conductor 7, and it preferably shields, and in order to run through vacuum coupling 8 battery lead plate 1 are connected with gauge.
According to the present invention, a kind of suction fixed electrode has been proposed, it shown battery lead plate and the band sealing lip O-ring seal between quite tight contact.The sealing lip has flexibility preferably, but not too soft, therefore can realize sealing by suitable curved surface.
Can know a kind of electrode from US Patent specification № 4248243, this electrode is fixed on the corresponding position by suction, and it has O-ring seal, and this circle is quite closely with the battery lead plate contact that is placed in the center.Yet, use kind electrode, suction can not obtain from central vacuum source by pipe, because the design of this electrode does not have the Self closing valve door of austrian patent, like this, valve can not combine with inflexible electrode structure.And the injection suction device in this known electrode pneumatically drive electrode.This causes the disturbance that electrode is bigger, particularly the patient in the diagnosis is disturbed very big because be placed on patient on one's body the time when electrode, its high tweeting sound that sheds.In addition, any thing that enters the suction apparatus air jet pipe all is blown in the room.For example be used for the spray that contains electrode cream of electrode, germ-carrying fluid (excreting), therefore use kind electrode to cause sound and other tangible environmental healths to pollute.Because the structural design of this electrode, make that it can not be as disinfecting, can not resemble and use the arbitrarily used electrode.In addition, the air that drives ejector must have quite high pressure, and 0.6 kilogram every square centimeter approximately, this has brought problem to sealing, and needs to use high-pressure hose.
At present, scape will use two class electrodes, and first kind is to adopt any use type electrode, and kind electrode sticks with glue agent (glue, adhesive plaster etc.) or fixes with rubber bar or similar thing.Second kind is to use universal electrode, and it is by the local vacuum forces fixed electrode that produces.People know the compression rubber bulb, and then allow it expand and vacuum principle.Unfortunately, because its gas storage size is not enough, even very small gas leakage, these balls also can relax, and when this works in hope, cause serious problems.For example, in conventional the use, require 6 electrodes to be fixed on simultaneously on one's body the patient, this just is a problem very much, the result, and neither one can be satisfied fully in these electrodes.The present invention has eliminated these shortcomings to a great extent.According to superiority of the present invention, the electrode that an is provided part is use type electrode or be made up of parts that can exchange rapidly, sterilizable arbitrarily.Actual battery lead plate has " button " little, that can throw away pattern, because electrochemical reason, the preferred materials that can form electrode surface is the silver that is coated with silver chloride, and this material can blackening under illumination.In this respect, metal or the plastic electrode that has a button erecting device can plate the very thin silver of one deck.Sealing ring also can be used the elastomeric material manufacturing, and these circles only use once just replaceable, regathers, and cleaning and sterilization are only used ring once for next reuse unless wish design.
Now, with reference to an embodiment shown in the accompanying drawings the present invention is described.
Fig. 1 is the exploded view of electrode, and it comprises three parts.
Fig. 2 is the profile that is in the electrode under the off working state, and this moment, vacuum valve was closed.
Fig. 3 is attached to the electrode profile of patient on one's body the time.
From Fig. 1, can see each parts of illustrated embodiment best.Battery lead plate 1, it can or have the plastics of metal surface 4 to make with metal, and it has projection, in case good with contact skin, even there is fine hair also not influence.The back of battery lead plate is a handle 5, and it forms the projecting member of a connector, and is used for inserting in the button recesses part 6 in the back seat 3, passes the hole 18 in intermediate member or the insert 2 again, also has sealing rings 9 in the middle of the insert 2.As can be seen, connector has conventional pattern used on the overalls.Back seat 3 can be made of nonconducting plastic material, also can select to be equipped with metal screen device (not shown).What link to each other with back seat is a vacuum hose or pipe 8, by managing 8 conductors 7 that shielded near metal connector 6.Like this, when connector component 5,6 was pressed together, battery lead plate was contained on the back seat 3 securely, and links to each other with conventional power supply by conductor 7.Vacuum hose communicates with the cavity of back seat 3, and many holes 20 are arranged around adapter female part 6.
Fig. 2 has represented the unit state of electrod assembly among Fig. 1.For the sake of clarity, have only Fig. 1 just to mark the number of parts.But as long as contrast simply with Fig. 1, the parts among other figure just can identify soon.The parts 1 and 2 of illustrated embodiment all are rotational symmetric, and are therefore easily manufactured, but this symmetry is not absolute demand.
As can be seen, the quite flat core that presents 18 the parts 2 of portalling is pressed on the sealing lip 15 of back seat 3.As shown in Figure 1, by the hole 11 of circle distribution, the upside and the downside of parts 2 cores are linked up.The downside of core also has a sealing lip 14, and it abuts against the rear side of battery lead plate 1.Sealing lip 14 and 15 is sealed to form a cavity, be used for vacuum, its scope determined by above-mentioned core and battery lead plate, thereby obtains a certain amount of deflection at the core of parts 2, and this deflection helps flange 17 on the parts 2 with the Elastic Contact of another sealing lip 16 on the back seat 3.Like this, in the structure shown in Figure 2, unless slight leakage, just otherwise the cavity of mentioning above having only that is positioned at the battery lead plate back can be in vacuum state.
When the electrode assembly shown in Fig. 2 imposes vacuum, electrode paste on patient skin the time (or after using electrode cream or the like, but also can), following situation will appear: when being pressed in circle-shaped sealing lip 13 on the skin, applied force will act on the flange 17 by harder ring 9, make flange generation elastic deformation, thereby the core of parts 2 also produces deformation, sealing lip 14 unclamps from the rear side of battery lead plate 1.Space between skin and the battery lead plate 1 or cavity are linked up with vacuum source, because parts 2 are porose 12, so all space or electrode cavity all are in the vacuum, thereby sealing lip 13 and 16 makes between back seat 3 and skin and can seal.Now, relate to the structure shown in Fig. 3.
The function that is clear that very much back seat 3 and ring 9 from Fig. 3 is an interior lock assembly.Though the elastic deformation power that produces by flange 17 makes ring 9 outside motions leave back seat 3, this power and gas pressure ratio are very little.Used vacuum is not above 0.1 kilogram every square centimeter.Air pressure is applied to the power on the skin, and the power that the surface of following sealing lip 13 to surround basically applies is consistent.This power is subjected to the retroaction of the resistance that skin provides, and most of resistance is to be applied on the surface 4 of battery lead plate 1, therefore can reach good especially contact.Because the distortion of skin also obtains the consistent effect of certain shape, inlays effect in other words conj.or perhaps, this can prevent that battery lead plate from sliding.Electrode cream and gas leakage can reduce frictional force, and therefore, the embedding of kind electrode needs, so that firmly fix electrode, prevents the effect of pulling-off force and shearing force.In fact, will cause that by pipe 8 added pulling-off force skin moves thereupon, too big up to distortion, sealing lip can not provide sealing again, so electrode comes off, and resilient flange 13 returns to position shown in Figure 2, and valve seal works once more.
Like this, for the effect that obtains, the electrode surface 4 of position shown in Fig. 3 must shrink to the center with respect to the sealing lip 13 on the ring 9.When the sealing lip diameter was 30 millimeters, it was 3-4 millimeter (among each figure, shown electrode assemblie has amplified twice) that the degree of depth is shunk at the corresponding center of electrode surface.
Described embodiment has extraordinary function actually.For example, owing to do not need to open adhesive plaster, for kind electrode, all things that will do just simply at every turn with an electrode paste on patient skin, corresponding symbolic representation can be used in the position that each electrode should be put, this symbol is on the rear surface of separately back seat, so can soon 6 electrodes be contained on one's body the patient.As can be seen, also out of question if any fine hair in this, even patient's light foot jumps on the floor, electrode will be firmly held on its position.Because what use is low suction pressure, atmospheric ten/once enough, normal person's skin can not stay any vestige because of used suction, even electrode paste reaches 30 minutes on one's body patient, also only stays next red circle gently in the place of sealing lip 13.After using electrode and throwing off vacuum source, the unique thing that will do is to throw off battery lead plate 1 by connector, and elastomeric element 2 is also thrown off thereupon, so as that to renew or with the component sterilization on the back seat 3, so electrode is used for next patient easily.Parts can be sterilized immediately, and it is large quantities of to sterilize simultaneously.Like this, electrode practicality and health especially designed according to this invention, and allow to do the inspection that also has some troubles so far, these troubles are that the shortcoming by the function of electrode causes, and resemble and run into always the customary all things.Because this electrode electrically contacts reliably, stable, these inspections can than finishing of in the past may doing faster, the long-time sampling method of Shi Yonging also can be shortened in time in the past.In some cases, particularly the long period use electrode or be used to check by patient's health pressing local time, it is suitable that some liquid absorption materials are added in the electrode, as blotting paper or similar material, these materials are placed between elastomeric element and the back seat, with after promptly throw away.
Claims (10)
1, a kind of suction fixed electrode that is mainly used in electrocardiography and similarly measures comprises:
One conductive electrode plate (1), contact surface before the one side has (4) and one adnexa (5) is arranged at its opposition side,
One inflexible back seat (3), this battery lead plate (1) is fixed in back seat (3) by adnexa (5), and this back seat (3) comprise a vacuum coupling (8) and
One potted component (2), it comprise a cyclic sealing ring (9) with the relation of spacing be centered around battery lead plate (1) around to limit a vacuum chamber, and sealing element (2) can be axially with respect to battery lead plate (1) towards back seat (3) with leave back seat (3) and move
It is characterized in that,
Sealing part (2) comprising:
One annular seal lip (14), it be connected with the described opposition side of battery lead plate (1) with its formation one valve, this valve separates the vacuum coupling (8) of back seat (3) with the vacuum chamber that is limited by sealing ring (9), and
One valve operation parts, it sealing lip (14) is connected with sealing ring (9) and also by biasing to impel the described opposition side of sealing lip (14) against battery lead plate (1), and these valve operation parts can be operated towards the axial displacement of back seat (3) resistance bias voltage by sealing ring (9), so that sealing lip (14) breaks away from battery lead plate (1), thereby open valve, so that vacuum chamber is in the state that is communicated with vacuum coupling (18).
2, suction fixed electrode according to claim 1 is characterized in that, battery lead plate (1) and potted component (2) removably and are interchangeably fixed by back seat (3).
3, suction fixed electrode according to claim 1 is characterized in that,
Sealing element (2) is an elastic single-piece part,
The valve operation parts of sealing element (2) comprise a diaphragm portion, it extends between sealing lip (14) and sealing ring (9), with a core (10) that has centre bore (18), running through this hole (18) has one to be arranged on the opposition side of battery lead plate (1) and the handle of formation parts (5)
Back seat (3) has a socket (6), and it can hold from central division the end of the handle (5) that the side of dividing (10) stretches out, this side dorsad battery lead plate (1) and
Shank portion that stretches out and socket combined effect are fixed on the back seat (3) battery lead plate (1) and potted component separably.
4, suction fixed electrode according to claim 3 is characterized in that,
Potted component (2) is included in its annular resilient flange (17) that has free periphery on side of battery lead plate (1) dorsad, and it can engage with back seat (3),
The core (10) of potted component (2) engages back seat (3) hermetically along an annular seal device (15), and, be provided with an all-pass endoporus (11) that fixedly is communicated with vacuum coupling (8) at least in the inside of annular seal device (15) and annular seal lip (14).
5, suction fixed electrode according to claim 4 is characterized in that,
The diaphragm portion of potted component (2) is provided with an outer hole (12) of all-pass that is positioned at the outside of annular seal device (15) and annular seal lip (14) on it at least, and
Annular resilient flange (17) engages back seat (3) hermetically, so that an annulus is limited at and is back seat (3) on the one hand and is between the potted component (2) on the other hand, this space is passed through outer hole (12) and fixedly is communicated with vacuum chamber.
6, suction fixed electrode according to claim 1 is characterized in that, sealing ring (9) extends to more than the preceding contact surface (4) of battery lead plate (1) forward.
7, suction fixed electrode according to claim 1 is characterized in that, the preceding contact surface (4) of battery lead plate (1) is a concave surface.
8, suction fixed electrode according to claim 7 is characterized in that, the preceding contact surface (4) of battery lead plate (1) is provided with a plurality of little projectioies.
9, suction fixed electrode according to claim 3 is characterized in that, handle (5) and socket (6) constitute a quick-action coupling mechanism.
10, according to the described suction fixed electrode of arbitrary aforementioned claim, it is characterized in that, conductor (7), it preferably shields, and in order to run through vacuum coupling (8) battery lead plate (1) is connected with gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85101834 CN1016941B (en) | 1985-04-01 | 1985-04-01 | Vacuum fixed and stabilized electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85101834 CN1016941B (en) | 1985-04-01 | 1985-04-01 | Vacuum fixed and stabilized electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101834A CN85101834A (en) | 1987-01-10 |
| CN1016941B true CN1016941B (en) | 1992-06-10 |
Family
ID=4792090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85101834 Expired CN1016941B (en) | 1985-04-01 | 1985-04-01 | Vacuum fixed and stabilized electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1016941B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8996100B2 (en) * | 2002-03-29 | 2015-03-31 | Koninklijke Philips N.V. | Monitoring system comprising electrodes with projections |
| JP5462234B2 (en) * | 2011-11-08 | 2014-04-02 | セイコーインスツル株式会社 | Biological information detection device |
| JP5469647B2 (en) * | 2011-11-08 | 2014-04-16 | セイコーインスツル株式会社 | Biological information detection device |
| CN103505201B (en) * | 2013-10-24 | 2015-10-07 | 刘卫明 | The wear-type electrocardioelectrodevice of configurable dry wet mode |
| US20200085335A1 (en) * | 2016-12-14 | 2020-03-19 | Anand MORANKAR | Suction cup ekg electrode |
| CN109864740B (en) * | 2018-12-25 | 2022-02-01 | 北京津发科技股份有限公司 | Surface electromyogram signal acquisition sensor and equipment in motion state |
| CN112043267A (en) * | 2020-10-10 | 2020-12-08 | 江苏集萃脑机融合智能技术研究所有限公司 | Contact surface self-adaptive electroencephalogram dry electrode |
-
1985
- 1985-04-01 CN CN 85101834 patent/CN1016941B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85101834A (en) | 1987-01-10 |
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