CN206612788U - A kind of novel human-body physiologic signal monitoring electrode - Google Patents

Abstract

The utility model discloses a novel human body physiological signal monitoring electrode, which is formed by sequentially superimposing conductive fabric (1), high-elastic sponge (2) with composite conductive gel, and metal base (3); the composite The high elastic sponge (2) of conductive gel comprises conductive sponge (6) and conductive gel (7); described conductive gel (7) is distributed in the cell of conductive sponge (6); described metal base (3 ) is provided with a metal buckle male buckle (4); the metal buckle male buckle (4) and the high-elastic sponge (2) of composite conductive gel are respectively located on the front and back sides of the metal base (3). The utility model can improve the wearing comfort, biocompatibility and signal stability of the acquisition system of the wearable system, and provide effective technical and material support for using the wearable system in the home environment to accurately and effectively warn the dangerous state of the human body.

Description

A New Electrode for Monitoring Human Physiological Signals

technical field

The utility model relates to the technical field of medical supplies, in particular to an electrode for collecting and monitoring physiological electric signals of a human body.

Background technique

With the development of Chinese society, the deterioration of the environment, and the changes in people's living conditions, cardiovascular and cerebrovascular diseases have gradually become the main threat to the health of middle-aged and elderly people in recent years, and accidental sudden death has occurred from time to time. One of the effective coping methods is long-term monitoring of the cardiovascular and cerebrovascular system in the home environment. During the monitoring process, the physiological signals of the human body are transmitted and sent to the designated equipment. Through comparison and analysis, some dangerous physiological signals can be obtained. Signal and early warning. Experiments have found that early and effective early warning can greatly reduce the chance of accidental sudden death. Therefore, wearable systems equipped with flexible structures for collecting physiological electrical signals provide the best way to extend human lifespan.

The structures that collect physiological electrical signals are called electrodes. In order to monitor the comfort of the human body wearing electrodes when collecting physiological signals, flexible and breathable structures are often used as the design structure of new electrodes (CN104523267A, CN202589516U, CN203776898U, CN103330562B, CN203953649U). Experiments have found that these newly developed flexible and breathable dry electrodes can well collect the ECG signals of the human body in a resting state, while the EEG signals are very weak (which can be regarded as not being collected).

Traditional fabric electrodes can better collect physiological electrical signals in the resting state of the human body, which is mainly due to the conductive fibers in the fabric (CN103462602B, CN102755691A, CN102274017A, CN103192070B, CN203976947U, CN104739403A) and the position of the electrode very close to the heart when worn (Strong ECG signal). However, when the human body is in a dynamic state, due to the slight relative movement between the dry fabric electrode and the skin, or the high impedance between the skin and the fabric electrode, the signal will have baseline drift and noise, which will affect the system’s effect on human physiology. signal judgment. Therefore, none of the currently developed wearable device electrodes can well solve the problem of the stability of physiological signal acquisition of the human body under dynamic conditions. To sum up, the existing electrode structure for ECG acquisition mainly has the following problems:

(1) The impedance between the existing dry electrodes and the skin is relatively large, resulting in unstable signals;

(2) When the human body is worn, there will be relative displacement between the existing electrodes and the skin, resulting in signal motion artifacts;

(3) In order to achieve stable signal acquisition when wearing, a tight-fitting method is often used, because it makes wearing uncomfortable.

Utility model content

In view of the above-mentioned problems existing in the prior art, the applicant provides a novel electrode for collecting and monitoring physiological signals. The utility model can improve the wearing comfort, biocompatibility and signal stability of the acquisition system of the wearable system, and provide effective technical and material support for using the wearable system in the home environment to accurately and effectively warn the dangerous state of the human body.

The technical scheme of the utility model is as follows:

A novel human physiological signal monitoring electrode, the electrode is formed by sequentially superimposing a conductive fabric (1), a high-elastic sponge compounded with conductive gel (2), and a metal base (3);

The high-elastic sponge (2) of the composite conductive gel comprises a conductive sponge (6) and a conductive gel (7); the conductive gel (7) is distributed in the cells of the conductive sponge (6);

The center position of the metal base (3) is provided with a metal buckle male buckle (4); the metal buckle male buckle (4) and the high elastic sponge (2) of composite conductive gel are respectively located , opposite sides;

The edge of the metal base (3) is provided with several pinholes (5); the edge of the conductive fabric (1) is sewn together with the metal base (3) through the pinholes (5), and the composite conductive gel is High-elastic sponge (2) is wrapped on the inside.

The conductive fabric (1) is a two-dimensional soft conductive fabric made of metal-coated chemical fiber filaments, ultra-fine conductive pure metal wires, organic polymer conductive fibers, and inorganic conductive fibers through spinning, weaving or knitting processes.

The thickness of the conductive fabric (1) is 0.15-0.55 mm.

The metal base (3) is circular or square, with a diameter or side length of 3-5 cm and a thickness of 1-5 mm.

The conductive sponge (6) is a high-elastic polyurethane foam sponge added with graphene, and the graphene content is 1-5% of the mass of the sponge.

The overall thickness of the electrode is 0.5-1.5 cm.

The electrodes are not limited to one shape, and can be designed in various appearance shapes according to requirements.

The beneficial technical effects of the utility model are:

Compared with the existing purely conductive fabric dry electrodes, in this utility model, the introduction of high-elastic sponge can flexibly adjust the tightness of the contact between wearable devices and human skin, improve the flexibility of wearing, and add conductive fabric to the high-elastic sponge. The hydrogel can effectively reduce the contact impedance between the conductive fabric and the skin, and improve the resolution, sensitivity and stability of physiological signal monitoring.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the bottom view of the utility model;

Fig. 3 is the top view of the utility model;

Among them: 1. Conductive fabric; 2. High elastic sponge compounded with conductive gel; 3. Metal base; 4. Metal buckle and male buckle; 5. Pinhole; 6. Conductive sponge; 7. Conductive gel.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figures 1 and 2, a new type of human physiological signal monitoring electrode is composed of conductive fabric 1, high-elastic sponge 2 with composite conductive gel, and metal base 3 in sequence; the high-elastic sponge with composite conductive gel 2 Including a conductive sponge 6 and a conductive gel 7; the conductive gel 7 is distributed in the cells of the conductive sponge 6;

The center position of the metal base 3 is provided with a metal buckle male buckle 4; the metal buckle male buckle 4 and the high-elastic sponge 2 of composite conductive gel are respectively located on the front and back sides of the metal base 3;

The edge of the metal base 3 is provided with a number of pinholes 5; the edge of the conductive fabric 1 is sewn together with the metal base 3 through the pinholes 5, and the high elastic sponge 2 of composite conductive gel is covered inside.

The conductive fabric 1 is a two-dimensional soft conductive fabric made of metal-coated chemical fiber filaments, ultra-fine conductive pure metal wires, organic polymer conductive fibers, and inorganic conductive fibers through spinning, weaving or knitting processes.

The thickness of the conductive fabric 1 is 0.15-0.55mm.

The metal base 3 is round or square, with a diameter or side length of 3-5 cm and a thickness of 1-5 mm.

The conductive sponge 6 is a high-elastic polyurethane foam sponge added with graphene, and the graphene content is 1-5% of the mass of the sponge.

The overall thickness of the electrode is 0.5-1.5 cm.

The electrodes are not limited to one shape, and can be designed in various appearance shapes according to requirements.

When using a new type of human physiological signal monitoring electrode, buckle the metal male buckle 5 on the metal base 3 into the female buckle on the wearable clothes, wherein the female buckle is connected to the circuit board for final signal processing through wires, so that it can be read from the human body. The physiological signal collected by the watch is transmitted to the chip through the metal buckle. After the signal monitoring is completed, the physiological signal collection electrode can be removed from the wearable clothing; the conductive fabric 1 side of the electrode faces the human skin, and when the electrode is used on the skin, , the conductive gel 7 can have a small amount of contact with the human skin through the pores of the conductive fabric 1, which can reduce the impedance between the skin and the electrode without reducing the comfort of the electrode during wearing.

Example 1

A new type of human physiological signal monitoring electrode, consisting of conductive fabric (pure silver-plated nylon yarn (40D) knitted weft-flat structure, thickness 0.3mm), high-elastic sponge composite conductive gel (open-celled polyurethane foam with a porosity of 90%) , diameter 3.8cm), stainless steel base (circular diameter 4cm, thickness 2mm) stacked in sequence; the high elastic sponge composite conductive gel includes conductive sponge (resistance less than 100Ω/cm ³ ) and conductive gel ( Contains 1% chitosan, 7% graphene oxide, 92% polyaniline gel); the conductive gel is distributed in the cells of the conductive sponge;

The center position of the stainless steel base is provided with a stainless steel male button; the stainless steel male button and the high-elastic sponge of the composite conductive gel are respectively located on the front and back sides of the stainless steel base;

The edge of the stainless steel base is provided with 8 pinholes (diameter 1.2mm), which are used to sew the edge of the conductive fabric and the stainless steel base together, and the high elastic sponge of the composite conductive gel is covered on the inside.

Example 2

A new type of human physiological signal monitoring electrode, which is made of conductive fabric (pure silver wire (40D) and ordinary cotton yarn (40D) mixed with a content of 1:1, and then knitted and weft-flat to form a conductive fabric with a thickness of 0.4mm), composite The high-elastic sponge of conductive gel (open-cell polyurethane foam with a porosity of 85%, with a side length of 1.8cm), and a copper base (a square with a side length of 2cm, and a thickness of 1.5mm) are stacked in sequence; the composite conductive gel High elastic sponge includes conductive sponge (resistance less than 50Ω/cm ³ ) and conductive gel (containing 10% graphene, 90% "aniline + phytic acid" type hydrogel); the conductive gel is distributed in the bubbles of the conductive sponge inside the hole;

The center position of the copper base is provided with a copper male button; the copper male button and the high-elastic sponge of composite conductive gel are respectively located on the front and back sides of the copper base;

The edge of the copper base is provided with 10 pinholes (diameter 1mm), which are used to sew the edge of the conductive fabric and the copper base together, and the high-elastic sponge of the composite conductive gel is covered on the inside.

Example 3

A new type of human physiological signal monitoring electrode, which is made of conductive fabric (conductive fabric formed by polypyrrole grafted nylon surface fiber through knitting weft flat, thickness is 0.3mm), high elastic sponge of composite conductive gel (porosity 80% open-cell polyurethane foam, triangular side length 2.4cm), aluminum alloy base (triangular side length 2.5cm, thickness 1mm) are superimposed in sequence; the high elastic sponge of composite conductive gel includes conductive sponge (resistance less than 50Ω/cm ³ ) and conductive gel (containing 5% graphene, 95% "aniline + phytic acid" type hydrogel); the conductive gel is distributed in the cells of the conductive sponge;

The center position of the aluminum alloy base is provided with an aluminum alloy male buckle; the aluminum alloy male buckle and the high-elastic sponge of composite conductive gel are respectively located on the front and back sides of the aluminum alloy base;

The edge of the aluminum alloy base is provided with 15 pinholes (diameter 1mm), which are used to sew the edge of the conductive fabric and the aluminum alloy base together, and wrap the high elastic sponge of the composite conductive gel on the inside.

The above description is an explanation of the utility model, not a limitation of the utility model. The specifications of the utility model are not limited to the standard specifications mentioned in the specific implementation, and there are also specifications applicable to other requirements. For the limited scope of the utility model, please refer to the claims, within the protection scope of the utility model, any form of modification can be made.

Claims (6)

1. a kind of novel human-body physiologic signal monitoring electrode, it is characterised in that the electrode is by conductive fabric (1), composite guide coagulation The high-elastic sponge (2) of glue, metab (3) are sequentially formed by stacking；

The high-elastic sponge (2) of the composite conducting gel includes conductive sponge (6) and Signa Gel (7)；The Signa Gel (7) In the abscess for being distributed in conductive sponge (6)；

The center of the metab (3) is provided with buckle pin thread (4)；The buckle pin thread (4) and composite guide coagulation The high-elastic sponge (2) of glue is located at the positive and negative two sides of metab (3) respectively；

The edge of the metab (3) is provided with some pin holes (5)；Conductive fabric (1) edge passes through pin hole (5) and gold Category base (3) is sewed together, and the high-elastic sponge (2) of composite conducting gel is coated on into inner side.

2. novel human-body physiologic signal monitoring electrode according to claim 1, it is characterised in that the conductive fabric (1) is Metal coating chemical-fibres filaments, ultrafine electricity conductive simple metal silk, organic polymer conductive fiber, inorganic conductive fiber pass through spinning, machine Knit or two-dimentional flexible conductive fabric that knitting is made.

3. novel human-body physiologic signal monitoring electrode according to claim 1, it is characterised in that the conductive fabric (1) Thickness is 0.15~0.55mm.

4. novel human-body physiologic signal monitoring electrode according to claim 1, it is characterised in that the metab (3) is Circular or square, diameter or the length of side are 3~5cm, and thickness is 1~5mm.

5. novel human-body physiologic signal monitoring electrode according to claim 1, it is characterised in that the conductive sponge (6) is The highly-elastic urethane foam sponge of graphene is added, graphene content is the 1~5% of sponge quality.

6. novel human-body physiologic signal monitoring electrode according to claim 1, it is characterised in that the overall thickness of the electrode Spend for 0.5~1.5cm.