CN211911604U - Implantable flexible patch electrode for collecting full-cortex signals - Google Patents
Implantable flexible patch electrode for collecting full-cortex signals Download PDFInfo
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- CN211911604U CN211911604U CN202020168537.XU CN202020168537U CN211911604U CN 211911604 U CN211911604 U CN 211911604U CN 202020168537 U CN202020168537 U CN 202020168537U CN 211911604 U CN211911604 U CN 211911604U
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Abstract
The utility model discloses an implantable flexible patch electrode for collecting signals of a full cortex, which comprises a top layer film, a bottom layer film, and a circuit wiring layer arranged between the top layer film and the bottom layer film; the circuit wiring layer is provided with a plurality of contacts which are designed and distributed according to the actual shape of the brain of the target object, the top layer coating film is provided with exposure holes matched with the contacts, and the contacts are communicated with the outside through the exposure holes; and one end of the circuit wiring layer is connected with a joint. The utility model discloses can acquire the high quality and comprehensive cortex signal, adopt the flexible material preparation, avoid causing too much discomfort and injury to the complete cortex, the structure is light and handy, and convenient to use has fine practicality.
Description
Technical Field
The utility model relates to an EEG signal acquisition technical field specifically indicates a flexible paster electrode is used in full cortex signal acquisition of implantable formula.
Background
The brain is the highest-grade organ and the most complex organ of animals including human beings, and the internal action mechanism of the brain needs to be subjected to a great amount of research and experimental study. In addition, in the field of medical brain-computer interfaces, the intention of the subject can be identified more accurately only by acquiring all data of the cerebral cortex of the subject, so that more accurate reaction can be made.
In the neural scientific research experiment, for the brain activity signal of acquireing the animal body, local cerebral cortex implants little needle or other metal electrode of few passageway usually, but the brain signal that this kind of acquisition mode acquireed is less, and data support is comparatively single, more can't know the interact process between the many brain areas, consequently to the scientific research worker, conventional brain electricity record mode has certain limitation.
In clinic, especially in the field of brain-computer interfaces, there are two general forms for acquiring the brain signals of a target object, one is a non-implantable type, the most common form is the brain cap, although the brain cap cannot cause damage, the quality of the acquired signals is poor, the later-stage data processing and analysis are not facilitated, the carrying is very inconvenient, and the acquisition under the free activity state is difficult to achieve. The second form is to adopt an invasive large array electrode, the contact of the micro-needle is directly penetrated into the cortex, and high-quality electroencephalogram signals can be obtained, but the generated implantation damage is large, high operation risk is caused, and the micro-needle is only limited to obtaining local signals and cannot be implanted in a large area.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the defect of above-mentioned technique, provide a flexible patch electrode is used to implantable formula complete cortex signal acquisition.
In order to solve the technical problem, the utility model provides a technical scheme is an implantable flexible patch electrode for full cortex signal acquisition: the circuit wiring layer is arranged between the top layer film and the bottom layer film; the circuit wiring layer is provided with a plurality of contacts which are designed and distributed according to the actual shape of the brain of the target object, the top layer coating film is provided with exposure holes matched with the contacts, and the contacts are communicated with the outside through the exposure holes; and one end of the circuit wiring layer is connected with a joint.
As an improvement, the top-layer covering film and the bottom-layer covering film are made of insulating and biocompatible flexible thin film materials, and the circuit routing layer is tightly attached between the top-layer covering film and the bottom-layer covering film in an adhesive or hot pressing mode.
As an improvement, the contact is made of a conductive and corrosion-resistant biocompatible material.
As an improvement, the circuit wiring layer is made of a conductive material.
Compared with the prior art, the utility model the advantage lie in: the utility model discloses can acquire the high quality and comprehensive cortex signal, adopt the flexible material preparation, avoid causing too much discomfort and injury to the complete cortex, the structure is light and handy, and convenient to use has fine practicality.
Drawings
Fig. 1 is a schematic structural diagram of the implantable flexible patch electrode for collecting signals of the whole cerebral cortex of the present invention.
Fig. 2 is a partial schematic view of the implantable flexible patch electrode for collecting signals of the whole cerebral cortex of the present invention.
Fig. 3 is a schematic diagram of the first circuit layout in the circuit wiring layer of the implantable flexible patch electrode for collecting signals of the whole cerebral cortex of the present invention.
Fig. 4 is a schematic diagram of a second circuit layout in the circuit wiring layer of the implantable flexible patch electrode for collecting signals of the whole cerebral cortex of the utility model.
As shown in the figure: 1. top coating, 2, bottom coating, 3, circuit routing layer, 4, contact, 5, exposure hole, 6, joint, 7, contact coating.
Detailed Description
The following describes the implantable flexible patch electrode for collecting signals of the whole cerebral cortex according to the present invention in detail with reference to the accompanying drawings.
With reference to fig. 1-4, an implantable flexible patch electrode for collecting signals of a whole cerebral cortex comprises a top layer covering film 1, a bottom layer covering film 2, and a circuit wiring layer 3 arranged between the top layer covering film 1 and the bottom layer covering film 2; the circuit wiring layer 3 is provided with a plurality of contacts 4, the plurality of contacts 4 are designed and distributed according to the actual shape of the brain of the target object, the top layer covering film 1 is provided with exposure holes 5 matched with the contacts 4, and the contacts 4 are communicated with the outside through the exposure holes 5; one end of the circuit wiring layer 3 is connected with a connector 6.
The top layer covering film 1 and the bottom layer covering film 2 are made of flexible film materials which are insulating and have biocompatibility, such as Polyimide (PI), Parylene, Polydimethylsiloxane (PDMS), Polyurethane (PU), silica gel and silicon rubber, and the circuit wiring layer 3 is tightly attached between the top layer covering film 1 and the bottom layer covering film 2 in an adhesive or hot pressing mode, so that the top layer covering film 1 and the bottom layer covering film 2 have insulating and fixing functions and can prevent tissue fluid from invading to cause short circuit of equipment.
The contact 4 is made of conductive and corrosion-resistant biocompatible materials, such as gold, platinum gold, platinum iridium alloy, silver/silver chloride, carbon and graphene, the contact 4 can be provided with a contact coating 7, and the contact coating 7 is also made of conductive and corrosion-resistant biocompatible materials, such as gold, platinum gold, platinum iridium alloy, silver/silver chloride, carbon and graphene.
The circuit wiring layer 3 is made of conductive material, such as copper, gold-plated copper, platinum, gold, carbon/graphene, silver/silver chloride.
The utility model discloses when concrete implementation, only need implant cortex surface or attached on the skull surface with flexible paster electrode, make contact 4 be located appointed EEG signal acquisition position, connect 6 with external EEG signal acquisition system be connected can.
The utility model discloses can acquire the high quality and comprehensive cortex signal, adopt the flexible material preparation, avoid causing too much discomfort and injury to the complete cortex, the structure is light and handy, and convenient to use has fine practicality.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (4)
1. The utility model provides an implantable flexible patch electrode for signal acquisition of complete cortex, its characterized in that: the circuit wiring layer comprises a top layer covering film (1), a bottom layer covering film (2) and a circuit wiring layer (3) arranged between the top layer covering film (1) and the bottom layer covering film (2);
the circuit routing layer (3) is provided with a plurality of contacts (4), the plurality of contacts (4) are designed and distributed according to the actual shape of the brain of the target object, the top layer covering film (1) is provided with exposure holes (5) matched with the contacts (4), and the contacts (4) are communicated with the outside through the exposure holes (5);
one end of the circuit wiring layer (3) is connected with a connector (6).
2. The implantable flexible patch electrode for collecting the signal of the whole cerebral cortex as claimed in claim 1, wherein: the top-layer covering film (1) and the bottom-layer covering film (2) are made of insulated and biocompatible flexible thin film materials, and the circuit wiring layer (3) is tightly attached between the top-layer covering film (1) and the bottom-layer covering film (2) in an adhesive or hot-pressing mode.
3. The implantable flexible patch electrode for collecting the signal of the whole cerebral cortex as claimed in claim 1, wherein: the contact (4) is made of a conductive and corrosion-resistant biocompatible material.
4. The implantable flexible patch electrode for collecting the signal of the whole cerebral cortex as claimed in claim 1, wherein: the circuit wiring layer (3) is made of a conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168537.XU CN211911604U (en) | 2020-02-14 | 2020-02-14 | Implantable flexible patch electrode for collecting full-cortex signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168537.XU CN211911604U (en) | 2020-02-14 | 2020-02-14 | Implantable flexible patch electrode for collecting full-cortex signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211911604U true CN211911604U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020168537.XU Active CN211911604U (en) | 2020-02-14 | 2020-02-14 | Implantable flexible patch electrode for collecting full-cortex signals |
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| Country | Link |
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| CN (1) | CN211911604U (en) |
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2020
- 2020-02-14 CN CN202020168537.XU patent/CN211911604U/en active Active
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