CN107224667B - Implanted leadless electrode - Google Patents
Implanted leadless electrode Download PDFInfo
- Publication number
- CN107224667B CN107224667B CN201710549684.4A CN201710549684A CN107224667B CN 107224667 B CN107224667 B CN 107224667B CN 201710549684 A CN201710549684 A CN 201710549684A CN 107224667 B CN107224667 B CN 107224667B
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- electrode
- leadless
- protrusions
- circuit board
- electrode plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0551—Spinal or peripheral nerve electrodes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0551—Spinal or peripheral nerve electrodes
- A61N1/0558—Anchoring or fixation means therefor
Abstract
The invention relates to the field of implantable nerve stimulators, and particularly discloses an implantable leadless electrode, which comprises an electrode substrate, wherein one or more protrusions are arranged on the electrode substrate, each protrusion is provided with an accommodating cavity, a binder is filled in each accommodating cavity, and the binder is used for releasing from the protrusion to fix the electrode in a target tissue after the electrode is implanted into the target tissue area. The implanted leadless electrode of the invention is added with a most fixed structure of the bulge on the leadless electrode, the bulge accommodates the adhesive, after the electrode is implanted into the target tissue area, the adhesive in the fixed structure is released and solidified when meeting the moisture of the human body, thereby firmly fixing and embedding the electrode into the target tissue, preventing the electrode from moving in use and ensuring the effect of electrical stimulation.
Description
Technical Field
The invention relates to the field of implantable nerve stimulators, in particular to an implantable leadless electrode.
Background
An implantable neurostimulator is an emerging digital therapeutic apparatus, and generally comprises an implantable pulse generator and electrodes, wherein the implantable pulse generator is used for generating electric pulses according to parameters set by a doctor through program control, and the electrodes are used for transmitting the electric pulses to target nerves. Currently, a leadless electrode appears on the market, the leadless electrode can be placed in an epidural area of a spinal cord to stimulate sacral nerve roots or a posterior pelvis to stimulate the sacral nerve of the spinal cord, and after the leadless electrode is implanted into a vertebral target tissue of a patient, if a fixed structure is not provided, the movement of the leadless electrode can be caused when the patient moves, and the leadless electrode can be displaced to a non-target tissue area, so that the electric stimulation treatment has no actual effect or side effects of stimulation are generated due to stimulation of a wrong tissue area.
Disclosure of Invention
According to the implantable leadless electrode, the bulge is arranged on the leadless electrode and used as a fixing structure, the adhesive is contained in the bulge, after the electrode is implanted into the target tissue of a patient, the adhesive is released, the leadless electrode is firmly positioned in the target tissue, and the position of the leadless electrode cannot be changed along with the movement of the patient, so that the stability and the effect of electrical stimulation treatment are ensured.
In order to solve the technical problem, the implantable leadless electrode comprises an electrode substrate, wherein one or more protrusions are arranged on the electrode substrate, each protrusion is provided with an accommodating cavity, and a bonding agent is filled in each accommodating cavity and is used for releasing from each protrusion after the electrode is implanted into a target tissue area so as to fix the electrode in the target tissue.
Furthermore, the electrode substrate is capsule-shaped, the leadless electrode further comprises a first electrode plate and a second electrode plate, the first electrode plate is connected with one end of the electrode substrate, the second electrode plate is connected with the other end of the electrode substrate, and the protrusion is arranged on the side edge of the electrode substrate.
Furthermore, the number of the bulges is more than three, and the bulges are arranged on the side edge of the electrode base body at equal intervals.
Further, the leadless type electrode further comprises a circuit board and a battery, and the circuit board and the battery are arranged on the electrode substrate.
Specifically, the circuit board is provided with a stimulating circuit for stimulating nerves, the stimulating circuit is provided with a first connector and a second connector, the first connector is connected with the first electrode plate, and the second connector is connected with the second electrode plate.
Specifically, the battery is connected with the circuit board, and the battery is used for providing current for the circuit of the circuit board.
Further, the binder is a biogel, which comprises fibrin glue.
In particular, the fibrin glue is fibrinogen or thrombin.
Further, the binder is 2-octyl cyanoacrylate.
The implanted leadless electrode of the invention is added with a most fixed structure of the bulge on the leadless electrode, the bulge accommodates the adhesive, after the electrode is implanted into the target tissue area, the adhesive in the fixed structure is released and solidified when meeting the moisture of the human body, thereby firmly fixing and embedding the electrode into the target tissue, preventing the electrode from moving in use and ensuring the effect of electrical stimulation.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the structure of an implantable leadless type electrode of the present invention.
In the figure: 1-projection; 2-a binder; 3-an electrode substrate; 4-a first electrode sheet; 5-a second electrode sheet; 6-a battery; 7-circuit board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of protection of the present invention.
Implantable neurostimulators generally include an implantable pulse generator for generating electrical pulses according to parameters set by a physician programmed, electrodes for delivering the electrical pulses to target nerves, and a leadless type electrode that can be placed in the epidural area of the spinal cord to stimulate the sacral nerve roots or posterior pelvis to stimulate the sacral nerve of the spinal cord.
In a specific embodiment of the present invention, as shown in fig. 1, the present invention discloses an implantable leadless electrode, the leadless electrode includes an electrode substrate 3, the electrode substrate 3 is capsule-shaped, has a diameter of 4-5mm and a length of 25-35mm, the leadless electrode further includes a first electrode plate 4 and a second electrode plate 5, the first electrode plate 4 is connected with one end of the electrode substrate 3, the second electrode plate 5 is connected with the other end of the electrode substrate 3, the protrusions 1 are disposed on the side of the electrode substrate 3, the electrode substrate 3 is provided with one or more protrusions 1, in an embodiment of the present invention, preferably, the number of the protrusions 1 is four, the four protrusions 1 are arranged on the side of the electrode substrate 3 at equal intervals, the protrusions 1 have receiving cavities, the receiving cavities are filled with a binder 2, the adhesive 2 is used for releasing from the protrusions 1 after the electrode is implanted into a target tissue region to fix the electrode in the target tissue, and the position of the leadless type electrode is not changed along with the movement of a patient, thereby ensuring the stability and effect of electrical stimulation treatment.
The leadless type electrode further comprises a circuit board 7 and a battery 6, and the circuit board 7 and the battery 6 are disposed on the electrode base body 3.
The circuit board 7 is provided with a stimulation circuit for stimulating nerves, the stimulation circuit is provided with a first connector and a second connector, the first connector is connected with the first electrode plate 4, and the second connector is connected with the second electrode plate 5.
The battery 6 is connected with the circuit board 7, and the battery 6 is used for providing current for the circuit of the circuit board 7.
In a particular embodiment of the invention, the binding agent 2 is a biogel comprising fibrin glue, which is fibrinogen or thrombin.
In one embodiment of the invention, the binder 2 is 2-octyl cyanoacrylate.
The implanted leadless electrode of the invention is added with a most fixed structure of the bulge on the leadless electrode, the bulge accommodates the adhesive, after the electrode is implanted into the target tissue area, the adhesive in the fixed structure is released and solidified when meeting the moisture of the human body, thereby firmly fixing and embedding the electrode into the target tissue, preventing the electrode from moving in use and ensuring the effect of electrical stimulation.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (4)
1. An implantable leadless electrode for stimulating sacral nerve, characterized in that the leadless electrode comprises an electrode substrate (3), the electrode substrate (3) is capsule-shaped, the diameter of the electrode substrate (3) is 4-5mm, the length is 25-35mm, the leadless electrode further comprises a first electrode plate (4) and a second electrode plate (5), the first electrode plate (4) is connected with one end of the electrode substrate (3), the second electrode plate (5) is connected with the other end of the electrode substrate (3), the leadless electrode further comprises a circuit board (7) and a battery (6), the circuit board (7) and the battery (6) are arranged on the electrode substrate, the circuit board (7) is provided with a stimulation circuit for stimulating nerve, the stimulation circuit is provided with a first connector and a second connector, the first connector is connected with the first electrode plate (4), the second connector is connected with a second electrode plate (5), one or more protrusions (1) are arranged on the electrode base body (3), the number of the protrusions (1) is more than three, the protrusions (1) are arranged on the side edge of the electrode base body (3) at equal intervals along the plane where the first electrode plate (4) and the second electrode plate (5) are located, the protrusions (1) are provided with accommodating cavities, adhesives (2) are filled in the accommodating cavities, and the adhesives (2) are used for releasing from the protrusions (1) and solidifying when encountering human body moisture after the electrodes are implanted into target tissue areas, so that the electrodes are firmly fixed and embedded into target tissues; the adhesive (2) is a biogel, and the biogel comprises fibrin glue.
2. The implantable leadless-type electrode for stimulating the sacral nerve according to claim 1, wherein the battery (6) is connected to the circuit board (7), the battery (6) for providing current to the circuitry of the circuit board (7).
3. The implantable lead-free electrode for stimulating the sacral nerve as in claim 1, wherein said fibrin glue is fibrinogen or thrombin.
4. The implantable leadless electrode of claim 1 wherein said adhesive (2) is 2-octyl cyanoacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710549684.4A CN107224667B (en) | 2017-07-07 | 2017-07-07 | Implanted leadless electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710549684.4A CN107224667B (en) | 2017-07-07 | 2017-07-07 | Implanted leadless electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107224667A CN107224667A (en) | 2017-10-03 |
| CN107224667B true CN107224667B (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710549684.4A Active CN107224667B (en) | 2017-07-07 | 2017-07-07 | Implanted leadless electrode |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109908467B (en) * | 2019-04-25 | 2024-04-30 | 北京品驰医疗设备有限公司 | Nerve electric stimulation electrode assembly and preparation method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6941171B2 (en) * | 1998-07-06 | 2005-09-06 | Advanced Bionics Corporation | Implantable stimulator methods for treatment of incontinence and pain |
| US7292890B2 (en) * | 2002-06-20 | 2007-11-06 | Advanced Bionics Corporation | Vagus nerve stimulation via unidirectional propagation of action potentials |
| US20040162590A1 (en) * | 2002-12-19 | 2004-08-19 | Whitehurst Todd K. | Fully implantable miniature neurostimulator for intercostal nerve stimulation as a therapy for angina pectoris |
| US9643004B2 (en) * | 2006-10-31 | 2017-05-09 | Medtronic, Inc. | Implantable medical elongated member with adhesive elements |
| CN102179000B (en) * | 2011-03-09 | 2014-09-24 | 中国科学院上海微系统与信息技术研究所 | Carbon-film-based flexible neural microelectrode and manufacturing method thereof |
| DE102011078982B4 (en) * | 2011-07-11 | 2015-02-12 | Cortec Gmbh | Implantable nerve electrode and method of making an implantable nerve electrode |
| WO2015042558A1 (en) * | 2013-09-23 | 2015-03-26 | Board Of Regents, The University Of Texas System | Wireless tissue stimulation devices |
| CN104107507B (en) * | 2014-07-09 | 2016-06-08 | 庞德兴 | Passive Wicresoft underlying nerve based on RFID radio-frequency technique gets involved chip |
-
2017
- 2017-07-07 CN CN201710549684.4A patent/CN107224667B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 无导线心脏起搏技术研究进展;李延广; 单兆亮; 王玉堂;《中国心脏起搏与心电生理杂志》;20160607;第30卷(第3期);189-193 * |
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| CN107224667A (en) | 2017-10-03 |
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