CN112426158A - Electrocardiosignal acquisition that is suitable for wearing for a long time is with moist electrode - Google Patents
Electrocardiosignal acquisition that is suitable for wearing for a long time is with moist electrode Download PDFInfo
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- CN112426158A CN112426158A CN202011336913.2A CN202011336913A CN112426158A CN 112426158 A CN112426158 A CN 112426158A CN 202011336913 A CN202011336913 A CN 202011336913A CN 112426158 A CN112426158 A CN 112426158A
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- 239000004744 fabric Substances 0.000 claims abstract description 32
- 239000000017 hydrogel Substances 0.000 claims abstract description 23
- 230000007774 longterm Effects 0.000 claims abstract description 7
- 230000003020 moisturizing effect Effects 0.000 claims abstract 4
- 239000000835 fiber Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 238000007731 hot pressing Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000012811 non-conductive material Substances 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims 1
- 210000004243 sweat Anatomy 0.000 abstract description 10
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 7
- 201000004624 Dermatitis Diseases 0.000 abstract description 6
- 206010040943 Skin Ulcer Diseases 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 231100000397 ulcer Toxicity 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 6
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 4
- 206010012601 diabetes mellitus Diseases 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 229910021607 Silver chloride Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 208000010668 atopic eczema Diseases 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 231100000019 skin ulcer Toxicity 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229920002334 Spandex Polymers 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 201000010251 cutis laxa Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004759 spandex Substances 0.000 description 1
- 210000000106 sweat gland Anatomy 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明属于心电监测部件技术领域，涉及一种适用长时佩戴的心电信号采集用润电极。包含上层支撑层，中层导电水凝胶和下层导电织物，支撑层、导电水凝胶和下层导电织物边缘合拢，中部通过导电扣固定；导电扣底部向内凹陷。本电极利用负压方式固定，不需要用胶与皮肤粘贴，因此患者长期使用不会产生皮肤过敏和溃疡，减轻患者痛苦，且信号稳定。使用者产生汗液后，不会影响粘贴的强度，而且汗液的产生对信号产生一定的增强作用。具有高舒适度、高灵敏度、高信噪比、高稳定性、高吸合力等诸多明显且实用的优点，具有广阔的市场前景和经济效益。
The invention belongs to the technical field of electrocardiographic monitoring components, and relates to a moisturizing electrode for electrocardiographic signal acquisition suitable for long-term wear. It includes an upper support layer, a middle layer of conductive hydrogel and a lower layer of conductive fabric, the edges of the support layer, the conductive hydrogel and the lower layer of conductive fabric are closed, and the middle is fixed by a conductive buckle; the bottom of the conductive buckle is recessed inward. The electrode is fixed by negative pressure, and does not need to be glued to the skin, so the patient will not have skin allergies and ulcers after long-term use, relieve the pain of the patient, and the signal is stable. After the user produces sweat, it will not affect the strength of the paste, and the production of sweat has a certain enhancement effect on the signal. It has many obvious and practical advantages such as high comfort, high sensitivity, high signal-to-noise ratio, high stability, and high suction force, and has broad market prospects and economic benefits.
Description
Technical Field
The invention belongs to the technical field of electrocardio monitoring components, and relates to a lubricating electrode for electrocardio signal acquisition, which is suitable for being worn for a long time.
Background
The traditional silver chloride (Agcl) patch electrode is fixed by adopting an adhesive tape pasting mode, the adhesive tape can directly contact with the skin, and the adhesive tape is pasted on the surface of the skin of a human body for more than 24 hours, so that skin eczema can be caused, and skin inflammation and allergy can be caused. Once the patch is used by a diabetic, skin ulcer is generated, and the diabetic is difficult to recover. More than 30% of middle aged and elderly people over 50 years of age are investigated as having varying degrees of diabetes. And for diabetic patients: eczema and skin ulcer are caused, healing is difficult, and great physiological pain is caused to patients. Meanwhile, the traditional patch type electrode has higher requirement on the skin surface in a pasting mode, the skin surface needs to be kept dry, if a user sweats a little to cause skin surface infiltration, the pasting is not tight enough, the effective contact surface between the electrode plate and the human body surface is reduced easily, and then the effective and stable monitoring of electrocardiosignals is influenced. Traditional SMD electrode, product bottom and skin surface contact, the upper end contacts with wearing the clothing, when long-term operation monitoring (produce the friction of uncertain interval), can produce certain harmful effects to electrocardiosignal's normal monitoring.
Disclosure of Invention
The invention provides a novel lubrication electrode for electrocardiosignal acquisition, which is suitable for being worn for a long time and aims at solving the problems in the traditional electrocardiosignal acquisition patch.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
a moist electrode for collecting electrocardiosignals without being influenced by body sweating comprises an upper supporting layer, a middle conductive hydrogel and a lower conductive fabric, wherein the edges of the supporting layer, the conductive hydrogel and the lower conductive fabric are folded, and the middle part of the moist electrode is fixed by a conductive button; the bottom of the conductive button is concave inwards.
Preferably, the support layer, the conductive hydrogel and the edge of the lower conductive fabric are fixed by mechanical pressing, hot pressing or pasting.
Preferably, the support layer is a resilient, non-conductive material.
Preferably, the conductive fabric has a surface impedance of less than 1 ohm.
Preferably, the conductive fabric contains conductive metal fibers.
When the wetted electrode is empty and not in use, the relationship between the pressure in the electrode cavity (P1) and the external pressure (atmospheric pressure) (P2) is: p1= P2; and when circular electrode pressed when on human skin surface (except open electrode lower extreme end mouth, other three sides are airtight space) the supporting layer is elastic structure, like the colloidal silica body, thereby the elastic layer pressurized produces a certain amount of deformation downwards, thereby the conducting hydrogel receives the inner structure that outside pressure effort filled the conducting fabric layer and reaches the airtight state (conducting hydrogel slightly extends to all around, height slightly descends), groove department when the pressurized when deformation downwards, can discharge originally moist electrode cavity's air, form nearly vacuum state, lead to the relation of inner chamber pressure (P1) and external pressure (atmospheric pressure) (P2 to be: p1< P2. The final effect is as follows: the surface layer of the human skin is closely attracted with the edge of the silica gel at the lower end of the moistening electrode under the action of external pressure (atmospheric pressure). In the presence of a negative pressure principle, when the vacuum degree of the inner cavity of the electrode is higher, the electrode is more closely attracted with the skin surface layer of the human body (meanwhile, the principle is that after sweat is secreted by the human body, the electrocardiosignal can be effectively enhanced by more than 20 percent), and the stable, efficient and real-time monitoring of the electrocardiosignal is more facilitated.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the electrode is fixed by using a negative pressure mode, and does not need to be pasted with the skin by using adhesive tapes, so that the skin allergy and ulcer can not be generated after the electrode is used for a long time by a patient, the pain of the patient is relieved, and the signal is stable.
2. After the user produces the sweat, can not influence the intensity of pasting, the production of sweat moreover produces certain reinforcing effect to the signal.
3. The sensor has the advantages of high comfort, high sensitivity, high signal-to-noise ratio, high stability, high suction force and the like, is obvious and practical, and has wide market prospect and economic benefit.
Drawings
Fig. 1 is a schematic view of an electrode structure of embodiment 1.
FIG. 2 is a cross-sectional view of FIG. 1A-A.
Fig. 3 and 4 are schematic views of different angles of the electrode in embodiment 1.
FIG. 5 is a schematic view of an electrode structure according to example 2.
Fig. 6 is a cross-sectional view taken along line B-B of fig. 5.
Fig. 7 and 8 are schematic diagrams of different angle structures of the electrode in embodiment 2.
The figures are numbered: 1 supporting layer, 2 conductive hydrogel, 3 conductive button and 4 conductive fabric.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood, the present invention will be further described with reference to specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
Example 1, as shown in fig. 1 to 4, fig. 2 is a sectional view, and this example provides a specific structure of a moist electrode for electrocardiographic signal collection which is not affected by perspiration of the body.
The supporting layer 1 is of a non-air-permeable, non-conductive and elastic structure with certain strength, and materials such as silica gel and high-density EVA foam which meet the requirements can be used, and the materials which meet the characteristics are all within the protection scope of the invention. The lower part of the support layer 1 is wrapped with conductive hydrogel 2, and the lower part of the conductive hydrogel 2 is provided with a layer of conductive fabric 4. The conductive gel does not directly contact with the skin and does not harm human bodies. The middle parts of the layers are clamped and fixed through buckles (conductive buckles), the buckles penetrate through the layers (mechanically pressed into an integrated structure), a concave structure is formed at the bottom of the electrode, and the conductive buckles 3 are made of conductive materials. After the electrode is fixed on skin, negative pressure is formed at the groove, so that the electrode is convenient to fix, and the silver chloride plated button is adopted in the embodiment. The edge positions of the conductive hydrogel 2 and the conductive fabric 4 are fixed by the viscosity of the hydrogel, and the conductive hydrogel and the conductive fabric can be mutually attached by manual squeezing. The conductive fabric 4 is at the lowest layer, and the conductive hydrogel 2 is positioned in the middle, in the embodiment, the thickness of the conductive fabric 4 is about 1 mm, and the conductive hydrogel 2 forms a seal after being clamped. The conductive silver cloth and the silica gel layer at the bottom of the electrode cavity are fixed by adopting a mechanical pressing process. When the moist electrode is pressed on the surface of the human body, the hydrogel can be filled with the conductive fabric, so that the whole body of the moist electrode is in a compact and full state, and the moist electrode is favorable for being tightly attached to the skin of the human body subsequently so as to smoothly monitor the electrocardiosignals. The electrode is disc-shaped and high in comfort, but the shape of the cross section of the electrode is not limited, and the electrode can be square or oval and the like, and is within the protection range. In the embodiment, the conductive button 3 is a silver chloride button, the conductive fabric 4 is a cloth component containing silver fibers, the effect is good when the content of the silver fibers is 42%, the rest components are 53% cotton and 5% spandex 190T knitted, the surface impedance of the conductive fabric is less than 1 ohm, and the conductive fabric adopted in the embodiment is a commercially available product and can be made by users according to needs. Advantages of adding silver fiber: the impedance influence is greatly reduced, the definition of electrocardiosignals is greatly improved, the noise is extremely low, and the signal-to-noise ratio is extremely high. In the embodiment, the conductive hydrogel 2 is wrapped by the conductive fabric 4 in a hot pressing manner, the height difference between the conductive hydrogel 2 and the outer silica gel layer is about 1 mm, and the conductive hydrogel 2 at the bottom of the moistening electrode and the conductive fabric 4 are integrally in a low-bending micro-arc shape. This embodiment is suitable for users with a non-flaccid skin (fatter people).
When sweat is secreted from sweat glands of a human body, the adsorption of the moistening electrode on the surface of the skin is firmer, and the adsorption capacity enhanced by the electrode can be indirectly converted into the stable monitoring capacity of a signal.
The embodiment will moisten the change of electrode shell body novelty for the silica gel material, increase the comfort level, reduce the friction of outside and clothing, keep excellent electrocardiosignal continuous, stable monitoring ability.
When the electrode pad is used, the inner layer of the tight-fitting garment and the inner pressure of the inner cavity of the moistening electrode can be matched for double fixation, so that the electrode pad and the skin surface have excellent fixation effect, and the problem of poor signal contact caused by subjective and objective actions of a human body is greatly reduced.
A moistening electrode is adopted, the conductive hydrogel 2 contains water, the outer layer cloth body can be moistened, and when a human body does not secrete sweat, the excellent electrocardiosignal monitoring capability can be kept through the conductive gel which is full of the whole conductive fabric 4; when a human body secretes sweat, the sweat can dip the cloth body, so that after the contact area between the cloth body and the surface of the skin of the human body is increased, the strength of electrocardio signals is enhanced by at least 20%, and the signal quality is further effectively improved.
Example 2
As shown in fig. 5-8, this embodiment is suitable for users with loose skin, and is different from embodiment 1 in that the contact area between the electrode and the skin is increased, the contact plane between the edge of the electrode and the skin is enlarged, and the edges of the upper and lower pressing layers are distributed in parallel. The supporting layer 1 of this embodiment adopts the cotton edge of high density EVA bubble, has certain expansion in comparison with embodiment 1, increases the area of contact with human skin surface, prevents to reduce the effective adsorption capacity of moist electrode because of the skin fold. In this embodiment, a bonding manner is adopted between the conductive fabric and the EVA foam.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011336913.2A CN112426158A (en) | 2020-11-25 | 2020-11-25 | Electrocardiosignal acquisition that is suitable for wearing for a long time is with moist electrode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011336913.2A CN112426158A (en) | 2020-11-25 | 2020-11-25 | Electrocardiosignal acquisition that is suitable for wearing for a long time is with moist electrode |
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| CN112426158A true CN112426158A (en) | 2021-03-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114366109A (en) * | 2022-02-08 | 2022-04-19 | 浙江柔灵科技有限公司 | A conductive hydrogel electrode patch |
| CN116671923A (en) * | 2023-06-20 | 2023-09-01 | 中北大学 | A kind of electrocardiogram electrode and preparation method thereof |
| WO2025113225A1 (en) * | 2023-12-01 | 2025-06-05 | 心韵恒安医疗科技（北京）有限公司 | Electrode patch and electrocardiogram detection apparatus |
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| CN214511172U (en) * | 2020-11-25 | 2021-10-29 | 山东师范大学 | Electrocardiosignal acquisition that is suitable for wearing for a long time is with moist electrode |
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2020
- 2020-11-25 CN CN202011336913.2A patent/CN112426158A/en active Pending
Patent Citations (6)
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| JP2016000363A (en) * | 2015-10-05 | 2016-01-07 | 日本電信電話株式会社 | Body surface-mounted electrode, biological signal measurement method, and biological signal measuring device |
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Cited By (3)
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| CN116671923A (en) * | 2023-06-20 | 2023-09-01 | 中北大学 | A kind of electrocardiogram electrode and preparation method thereof |
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