High-density electrode structure and equipment for collecting bio-electricity signals

Abstract

The utility model discloses a high-density electrode structure which is convenient to use and more stable in electric signal transmission and equipment for collecting bio-electricity signals. According to the technical scheme, the high-density electrode structure is used for collecting bio-electricity signals and comprises a signal transmission carrier, a plurality of signal receiving electrodes are arranged on the signal transmission carrier in an array mode, conductive hydrogel is arranged at the position, corresponding to each signal receiving electrode, of the signal transmission carrier, and the signal receiving electrodes are arranged on the signal transmission carrier. One conductive hydrogel is correspondingly contacted with one signal receiving electrode, and the adjacent conductive hydrogels are not contacted with each other. The utility model further discloses equipment comprising the high-density electrode structure.

Description

Technical Field

[0001] The utility model relates to the technical field of bioelectric signal collection, in particular to a high-density electrode structure and a device for collecting bioelectric signals. Background Art

[0002] High-density electrode arrays are currently mainly used in the field of biomedical technology. At present, medical high-density electrodes usually need to be manually attached with double-sided tape and manually injected with conductive coupling paste when in use. This solution requires professional operation and has low work efficiency, which affects the efficiency of signal acquisition. In addition, the signal-to-noise ratio collected by existing high-density electrodes is relatively large, which may eventually lead to signal distortion and affect the monitoring effect. What's worse, useful signals will be submerged in noise signals, which will bring great difficulties to the subsequent signal demodulation. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem solved by the utility model is to provide a high-density electrode structure that is easy to use and has more stable electrical signal transmission, and a device including the high-density electrode structure.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a high-density electrode structure for collecting bioelectric signals, which includes a signal transmission carrier, on which a plurality of signal receiving electrodes are arrayed, and a conductive hydrogel is provided at a position corresponding to each of the signal receiving electrodes on the signal transmission carrier, one of the conductive hydrogels contacts correspondingly with one of the signal receiving electrodes, and adjacent conductive hydrogels do not contact each other.

[0005] Furthermore, the technical solution also includes a medical double-sided tape arranged on the signal transmission carrier, and a through hole is opened on the double-sided tape corresponding to the position of each conductive hydrogel, and each conductive hydrogel has a portion protruding from the double-sided tape after passing through a through hole.

[0006] Furthermore, in the technical solution, the size of the portion of the conductive hydrogel protruding from the double-sided adhesive is smaller than the size of the portion contacting the signal receiving electrode.

[0007] Furthermore, the opening size of the through hole in the present technical solution is close to the size of the portion of the conductive hydrogel that contacts the signal receiving electrode.

[0008] Furthermore, the opening size of the through hole in the present technical solution is larger than the size of the conductive hydrogel.

[0009] Furthermore, the technical solution also includes a release paper, which covers the double-sided adhesive tape, and the release paper is also provided with a pinching portion protruding from the edge of the double-sided adhesive tape.

[0010] Furthermore, the signal transmission carrier in the present technical solution is a flexible circuit board.

[0011] Furthermore, the signal transmission carrier in the present technical solution is a fiber cloth flexible electrode.

[0012] Furthermore, the signal receiving electrode in the present technical solution is a metal electrode.

[0013] The technical solution also discloses a device for collecting bioelectric signals, which includes the high-density electrode structure described in any one of the above technical solutions.

[0014] The beneficial effects of the technical solution provided by the utility model are mainly: due to the setting of the conductive hydrogel, the conductive hydrogel itself can conduct signals and has adhesiveness, and after it is bonded to the skin, the signal transmission is more stable, so it can be used directly without injecting conductive coupling paste, avoiding the trouble of manual injection and improving signal collection efficiency. Since the adjacent conductive hydrogels do not contact each other, the independent conductive hydrogels make the electrical signals collected by each signal receiving electrode independent of each other, which will reduce the mutual interference between signals and noise, making the transmission of electrical signals more stable and obtaining electrical signals with higher purity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. It is obvious that the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a structural front view of the high-density electrode structure in the first embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure decomposition of the first embodiment of the utility model;

[0018] Figure 3 It is a top view of the structure of the high-density electrode in the first embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structural decomposition of the high-density electrode in the second embodiment of the present utility model;

[0020] Figure 5 It is a top view of the structure of the high-density electrode in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. It should be understood that the specific embodiments described in this section can only be used to explain the present invention, and are not used to limit the present invention.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. For the convenience of description, spatial relative relationship terms can be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the accompanying drawings. Specific embodiment 1

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, it is a high-density electrode structure 100 provided by a preferred embodiment of the utility model, which is used to collect bioelectric signals. The high-density electrode structure 100 includes a signal transmission carrier 110, and a plurality of signal receiving electrodes 111 are arrayed on the signal transmission carrier 110. A conductive hydrogel 120 is provided at a position corresponding to each signal receiving electrode 111 on the signal transmission carrier 110, and one conductive hydrogel 120 contacts one signal receiving electrode 111, and adjacent conductive hydrogels 120 do not contact each other.

[0025] The signal transmission carrier 110 can be selected as a flexible circuit board or a fiber cloth flexible electrode. In this embodiment, the conductive hydrogel 120 is precisely placed on each signal receiving electrode 111 by an existing dispensing machine, the signal transmission carrier 110 is selected as a flexible circuit board, and the signal receiving electrode 111 is a metal electrode. The high-density electrode structure 100 of this structure can be reused after being wiped with a rag with water or alcohol when the conductive hydrogel 120 is not sticky. Specific embodiment 2

[0027] like Figure 4 , Figure 5As shown, on the basis of the above-mentioned embodiment 1, a medical double-sided adhesive tape 130 and a release paper 140 are further provided. The double-sided adhesive tape 130 is adhered to the signal transmission carrier 110, and the release paper 140 is attached to the outer surface of the double-sided adhesive tape 130 and covers the entire double-sided adhesive tape 130. The release paper 140 is provided with a pinching portion protruding from the edge of the double-sided adhesive tape 130. A through hole 131 is provided on the double-sided adhesive tape 130 corresponding to the position of each conductive hydrogel 120, and each conductive hydrogel 120 has a portion protruding from the double-sided adhesive tape 130 after passing through a through hole 131. The provision of the double-sided adhesive tape 130 can increase the reliability of the high-density electrode structure 100 adhering to the skin, and also prevent the adjacent conductive hydrogels 120 from deforming and contacting each other after the adhering skin is squeezed. The release paper 140 is used to protect the double-sided adhesive tape 130 and the conductive hydrogel 120, and prevent the double-sided adhesive tape 130 and the conductive hydrogel 120 from becoming non-adhesive after being exposed to the air for a long time.

[0028] The conductive hydrogel 120 has a connection end, a transition section and a protruding end, the connection end and the protruding end are located at both ends of the transition section, the connection end is connected and contacts the signal receiving electrode 111, and the protruding end protrudes from the double-sided adhesive tape 130. The size of the protruding end in the conductive hydrogel 120 is smaller than the size of the connection end, the opening size of the through hole 131 is equal to the size of the connection end in the conductive hydrogel 120 (theoretically, it can be interpreted as infinitely close), and the transition section and the through hole 131 are clearance-matched to accommodate the deformed part of the protruding end of the conductive hydrogel 120 after being bonded to the skin.

[0029] In other embodiments, the opening size of the through hole 131 may also be selected to be larger than the size of the conductive hydrogel 120 as a whole (the diameter of the cross section when the conductive hydrogel is cylindrical).

[0030] The above embodiments can solve the pain points of the existing technical solutions, and realize the integrated design of the module through the selection and improvement of materials. Due to the setting of the conductive hydrogel 120, the conductive hydrogel 120 itself has adhesiveness, its adhesion to the skin is more reliable, and the signal transmission is more stable, so it can be used directly without injecting the conductive coupling paste, avoiding the trouble of manual injection and improving the signal acquisition efficiency. Since the adjacent conductive hydrogels 120 do not contact each other, the electrical signals collected by each signal receiving electrode 111 are independent of each other, which will minimize the mutual interference between the signal and the noise, making the transmission of the electrical signal more stable and the purity of the obtained electrical signal higher.

[0031] When using the high-density electrode structure 100 provided in the second embodiment, medical personnel only need to tear off the release paper 140 , thereby improving the efficiency of signal collection.

[0032] The high-density electrode structure 100 in the above embodiment can be used in various devices for collecting bioelectric signals, and has far-reaching application prospects in the long run. For example, these devices can be medical biomedical devices, sports monitoring devices, wearable smart devices, etc.

[0033] The above specific examples are used to illustrate the principle and implementation of the present invention. It should be understood that the above implementation is only used to help understand the present invention and should not be construed as a limitation of the present invention. For those skilled in the art, any minor improvements or equivalent substitutions made to the structural form or structure of the present invention based on the idea of ​​the present invention should be included in its protection scope.

Claims

1. A high-density electrode structure for collecting bioelectric signals, comprising a signal transmission carrier, on which a plurality of signal receiving electrodes are arrayed, characterized in that: A conductive hydrogel is provided at a position corresponding to each of the signal receiving electrodes on the signal transmission carrier, one conductive hydrogel contacts one of the signal receiving electrodes, and adjacent conductive hydrogels do not contact each other.

2. The high-density electrode structure according to claim 1, characterized in that: It also includes a medical double-sided adhesive tape arranged on the signal transmission carrier, wherein the double-sided adhesive tape is provided with a through hole corresponding to the position of each of the conductive hydrogels, and each of the conductive hydrogels has a portion protruding out of the double-sided adhesive tape after passing through a through hole.

3. The high-density electrode structure according to claim 2, characterized in that: The size of the portion of the conductive hydrogel protruding from the double-sided tape is smaller than the size of the portion contacting the signal receiving electrode.

4. The high-density electrode structure according to claim 3, characterized in that: The opening size of the through hole is close to the size of the portion of the conductive hydrogel that contacts the signal receiving electrode.

5. The high-density electrode structure according to claim 2, characterized in that: The opening size of the through hole is larger than the size of the conductive hydrogel.

6. The high-density electrode structure according to any one of claims 2 to 5, characterized in that: It also includes release paper, which covers the double-sided adhesive tape. The release paper is also provided with a pinching portion protruding from the edge of the double-sided adhesive tape.

7. The high-density electrode structure according to any one of claims 1 to 5, characterized in that: The signal transmission carrier is a flexible circuit board.

8. The high-density electrode structure according to any one of claims 1 to 5, characterized in that: The signal transmission carrier is a fiber cloth flexible electrode.

9. The high-density electrode structure according to any one of claims 1 to 5, characterized in that: The signal receiving electrode is a metal electrode.

10. A device for collecting bioelectric signals, characterized in that: It comprises the high-density electrode structure according to any one of claims 1 to 9.

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