阅读说明：本技术 一种新型八触点针状电极 (Novel eight-contact needle electrode ) 是由 祖平 蒋军庭 张新国 于 2021-08-12 设计创作，主要内容包括：本发明涉及针状电极技术领域,尤其是一种新型八触点针状电极,包括导丝、导管、铂铱片、铂铱环和连接环,所述导管内置导丝,所述导管一端连接连接环,另一端连接铂铱片和铂铱环,所述导管左侧通过聚氨酯固定定位环,所述定位环固定在铂铱环与导管之间。本发明的有益效果是,刺激范围缩小,可以做到小范围精密刺激,可以选择效益最大、副作用最小的最低刺激参数,解决了很多常用结构没法解决的问题,增强病人的舒适感和治疗成功性。(The invention relates to the technical field of needle electrodes, in particular to a novel eight-contact needle electrode which comprises a guide wire, a guide pipe, a platinum iridium sheet, a platinum iridium ring and a connecting ring, wherein the guide wire is arranged in the guide pipe, one end of the guide pipe is connected with the connecting ring, the other end of the guide pipe is connected with the platinum iridium sheet and the platinum iridium ring, the left side of the guide pipe is fixed with a positioning ring through polyurethane, and the positioning ring is fixed between the platinum iridium ring and the guide pipe. The invention has the advantages that the stimulation range is reduced, the small-range precise stimulation can be realized, the minimum stimulation parameter with the maximum benefit and the minimum side effect can be selected, the problems which cannot be solved by a plurality of common structures are solved, and the comfort and the treatment success of patients are enhanced.)

1. The utility model provides a novel eight contact needle electrodes, characterized by, includes seal wire (1), pipe (2), platinum iridium piece (3), platinum iridium ring (4) and go-between (5), pipe (2) embeds seal wire (1), go-between (5) are connected to pipe (1) one end, and platinum iridium piece (3) and platinum iridium ring (4) are connected to the other end, polyurethane fixed positioning ring (6) are passed through on pipe (2) left side, holding ring (6) are fixed between platinum iridium ring (4) and pipe (1).

2. The novel eight-contact needle electrode as claimed in claim 1, wherein the connecting rings (5) are provided with eight groups, the connecting rings (5) are arranged at intervals by polyurethane, and comprise a connecting ring I (5-1), a connecting ring II (5-2), a connecting ring III (5-3), a connecting ring IV (5-4), a connecting ring V (5-5), a connecting ring VI (5-6), a connecting ring VII (5-7) and a connecting ring VIII (5-8), the guide wire (1) is formed by winding eight strands of wires synchronously, and one guide wire is connected with one connecting ring (5).

3. The novel eight-contact needle electrode as claimed in claim 1, wherein the platinum iridium ring (4) comprises two groups, including a first platinum iridium ring (4-1) and a second platinum iridium ring (4-2), and one platinum iridium ring (4) is connected with one strand of the guide wire (1); the platinum-iridium sheet (3) comprises six groups, including a first platinum-iridium sheet (3-1), a second platinum-iridium sheet (3-2), a third platinum-iridium sheet (3-3), a fourth platinum-iridium sheet (3-4), a fifth platinum-iridium sheet (3-5) and a sixth platinum-iridium sheet (3-6), wherein one platinum-iridium sheet (3) is connected with one strand of the guide wire (1).

4. The novel implanted eight-contact needle electrode as claimed in claim 3, wherein grooves (3-7) matched with the platinum-iridium-sheet positioning block (7) are formed in the upper end and the lower end of the platinum-iridium sheet (3), the first platinum-iridium sheet (3-1), the second platinum-iridium sheet (3-2) and the third platinum-iridium sheet (3-3) are fixed through the first platinum-iridium-sheet positioning block (7-1), the fourth platinum-iridium sheet (3-4), the fifth platinum-iridium sheet (3-5) and the sixth platinum-iridium sheet (3-6) are fixed through the second platinum-iridium-sheet positioning block (7-2), and the first platinum-iridium-sheet positioning block (7-1) and the second platinum-iridium-sheet positioning block (7-2) are located between the first platinum ring (4-1) and the second platinum-iridium ring (4-2) and are connected through polyurethane at intervals.

5. The novel eight-contact needle electrode as claimed in claim 1, wherein the surface of the guide wire (1) is coated with an insulating coating, and the coating material is any one of PFA, ETFE, PTFE and PI.

6. The novel eight-contact needle electrode as claimed in claim 1, wherein the catheter (2) is made of polyurethane and has an outer diameter of 1.3mm, the platinum-iridium ring (4) is made of platinum-iridium alloy PtIr10, and the connection ring (5) is made of nickel-cobalt alloy.

Background

The deep brain electrical stimulation therapy is characterized in that a needle electrode is inserted into a specific nucleus in a brain through a stereotactic technology and a microelectrode recording technology, abnormal brain nucleus discharge is inhibited through continuous pulse stimulation, the therapeutic effect is achieved, and the deep brain electrical stimulation therapy is different from some treatment methods for permanently and irreversibly damaging the brain, does not damage the brain structure and can allow future further treatment.

In the prior art, the number of platinum iridium rings at an implanted end of an eight-contact needle electrode is 8, and the needle electrode has a large stimulation range, but cannot accurately stimulate a small range and is not suitable for stimulating small cell nuclei; do not allow for loop mode or horizontal current diversion; the lowest stimulation parameters with the greatest benefit and the smallest side effects cannot be selected; or otherwise the electrode location is not ideal and is not effective or desirable for some patients.

Disclosure of Invention

In order to overcome the defects of the conventional mode of implanting the nerve stimulation needle electrode, the invention provides a novel eight-contact needle electrode.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a novel eight contact needle electrodes, characterized by, includes seal wire, pipe, platinum iridium piece, platinum iridium ring and go-between, the built-in seal wire of pipe, the go-between is connected to pipe one end, and platinum iridium piece and platinum iridium ring are connected to the other end, polyurethane fixed positioning ring is passed through on the pipe left side, the holding ring is fixed between platinum iridium ring and pipe.

According to another embodiment of the invention, the connecting rings are arranged in eight groups at intervals by polyurethane, and the connecting rings comprise a first connecting ring, a second connecting ring, a third connecting ring, a fourth connecting ring, a fifth connecting ring, a sixth connecting ring, a seventh connecting ring and an eighth connecting ring, the guide wires are formed by winding eight strands synchronously, and one strand of guide wire is connected with one connecting ring.

According to another embodiment of the invention, the method further comprises the steps that the platinum-iridium rings are divided into two groups, wherein the two groups comprise a first platinum-iridium ring and a second platinum-iridium ring, and one platinum-iridium ring is connected with one strand of the guide wire; the platinum-iridium sheet comprises six groups including a first platinum-iridium sheet, a second platinum-iridium sheet, a third platinum-iridium sheet, a fourth platinum-iridium sheet, a fifth platinum-iridium sheet and a sixth platinum-iridium sheet, and one platinum-iridium sheet is connected with one strand of the guide wire.

According to another embodiment of the invention, the device further comprises a first platinum iridium sheet, a second platinum iridium sheet and a third platinum iridium sheet, wherein the upper end and the lower end of the first platinum iridium sheet are provided with grooves matched with the first platinum iridium sheet positioning block, the first platinum iridium sheet, the second platinum iridium sheet and the third platinum iridium sheet are fixed through the first platinum iridium sheet positioning block, the fourth platinum iridium sheet, the fifth platinum iridium sheet and the sixth platinum iridium sheet are fixed through the second platinum iridium sheet positioning block, and the first platinum iridium sheet positioning block and the second platinum iridium sheet positioning block are located between the first platinum iridium ring and the second platinum iridium ring and are connected at intervals through polyurethane.

According to another embodiment of the invention, the surface of the guide wire is provided with an insulating coating, and the coating material is any one of PFA, ETFE, PTFE and PI.

According to another embodiment of the invention, the catheter material is polyurethane, the outer diameter is 1.3mm, the platinum-iridium ring material is platinum-iridium alloy PtIr10, and the connecting ring material is nickel-cobalt alloy.

The invention has the advantages that the stimulation range is reduced, the small-range precise stimulation can be realized, the minimum stimulation parameter with the maximum benefit and the minimum side effect can be selected, the problems which cannot be solved by a plurality of common structures are solved, and the comfort and the treatment success of patients are enhanced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of a first Pt-Ir plate positioning block;

FIG. 3 is a schematic view of a second positioning block of platinum-iridium sheet;

FIG. 4 is a schematic illustration of a platinum iridium sheet;

in the drawing, 1, a guide wire, 2, a catheter, 3, a platinum iridium sheet, 3-1, a first platinum iridium sheet, 3-2, a second platinum iridium sheet, 3-3, a third platinum iridium sheet, 3-4, a fourth platinum iridium sheet, 3-5, a fifth platinum iridium sheet, 3-6, a sixth platinum iridium sheet, 3-7, a groove 4, a platinum iridium ring, 4-1, a first platinum iridium ring, 4-2, a second platinum iridium ring, 5, 5-1 parts of a connecting ring, 5-2 parts of a first connecting ring, 5-3 parts of a second connecting ring, 5-4 parts of a third connecting ring, 5-5 parts of a fourth connecting ring, 5-5 parts of a fifth connecting ring, 5-6 parts of a sixth connecting ring, 5-7 parts of a seventh connecting ring, 5-8 parts of a seventh connecting ring, 6 parts of a eighth connecting ring, a positioning ring, 7 parts of a platinum-iridium sheet positioning block, 7-1 parts of a first platinum-iridium sheet positioning block, 7-2 parts of a second platinum-iridium sheet positioning block.

Detailed Description

Fig. 1 to 3 show a structural schematic diagram of the novel eight-contact needle electrode, which is characterized by comprising a guide wire 1, a catheter 2, a platinum iridium sheet 3, a platinum iridium ring 4 and a connecting ring 5, wherein the guide wire 1 is arranged in the catheter 2, one end of the catheter 1 is connected with the connecting ring 5, the other end of the catheter 1 is connected with the platinum iridium sheet 3 and the platinum iridium ring 4, the left side of the catheter 2 is fixed with a positioning ring 6 through polyurethane, and the positioning ring 6 is fixed between the platinum iridium ring 4 and the catheter 1.

Specifically, the inner channel of the guide wire 1 can be used for a guide wire to be penetrated in a surgical process to assist the operation; the connecting ring 5 side and the platinum iridium ring 4 side of the needle-shaped electrode are both formed by injection molding, and the injection molding material is polyurethane; the side channel of the connecting ring 5 is open, the side channel of the platinum iridium ring 4 is closed, and the positioning ring 6 is convenient for observing the implantation angle so as to determine the implantation position and angle of each platinum iridium plate 3.

According to another embodiment of the invention, the connecting rings 5 are eight groups, the connecting rings 5 are arranged at intervals through polyurethane, the connecting rings comprise a first connecting ring 5-1, a second connecting ring 5-2, a third connecting ring 5-3, a fourth connecting ring 5-4, a fifth connecting ring 5-5, a sixth connecting ring 5-6, a seventh connecting ring 5-7 and an eighth connecting ring 5-8, the guide wire 1 is formed by winding eight strands synchronously, and one strand of guide wire is connected with one connecting ring 5.

Specifically, the first connecting ring 5-1, the second connecting ring 5-2, the third connecting ring 5-3, the fourth connecting ring 5-4, the fifth connecting ring 5-5, the sixth connecting ring 5-6, the seventh connecting ring 5-7, the eighth connecting ring 5-8, the locking blocks of the extension leads and the connectors of the novel implantable neural stimulation needle-shaped electrode correspond to one another, and the electrode can be conveniently inserted into the extension leads.

According to another embodiment of the invention, the method further comprises the steps that the platinum iridium rings 4 are divided into two groups, wherein the two groups comprise a first platinum iridium ring 4-1 and a second platinum iridium ring 4-2, and one platinum iridium ring 4 is connected with one strand of the guide wire 1; the platinum-iridium sheet 3 comprises six groups including a first platinum-iridium sheet 3-1, a second platinum-iridium sheet 3-2, a third platinum-iridium sheet 3-3, a fourth platinum-iridium sheet 3-4, a fifth platinum-iridium sheet 3-5 and a sixth platinum-iridium sheet 3-6, and one platinum-iridium sheet 3 is connected with one strand of the guide wire 1.

According to another embodiment of the invention, grooves 3-7 matched with a platinum iridium positioning block 7 are formed in the upper end and the lower end of the platinum iridium sheet 3, the first platinum iridium sheet 3-1, the second platinum iridium sheet 3-2 and the third platinum iridium sheet 3-3 are fixed through the first platinum iridium positioning block 7-1, the fourth platinum iridium sheet 3-4, the fifth platinum iridium sheet 3-5 and the sixth platinum iridium sheet 3-6 are fixed through the second platinum iridium positioning block 7-2, and the first platinum iridium positioning block 7-1 and the second platinum iridium positioning block 7-2 are located between the first platinum iridium ring 4-1 and the second platinum iridium ring 4-2 and are connected through polyurethane at intervals.

According to another embodiment of the present invention, it is further included that the surface of the guide wire 1 is provided with an insulating coating, and the coating material is any one of PFA, ETFE, PTFE and PI.

According to another embodiment of the invention, the material of the catheter 2 is polyurethane, the outer diameter is 1.3mm, the material of the platinum-iridium ring 4 is platinum-iridium alloy PtIr10, and the material of the connecting ring 5 is nickel-cobalt alloy.

In the specific operation process, the connecting ring 5 of the needle-shaped electrode is connected with the extension lead and then connected to the nerve stimulator, and the platinum iridium ring and the platinum iridium sheet are in contact with the human body. The stimulation signal is sent out by the nerve stimulator, passes through the extension lead, then reaches the connecting ring 5, the guide wire 1, the platinum iridium ring 4 and the platinum iridium sheet 3, and is transmitted into the body, thereby achieving the purpose of treatment.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.