CN219147614U

CN219147614U - Electrode lock

Info

Publication number: CN219147614U
Application number: CN202222604729.2U
Authority: CN
Inventors: 洪宇祥; 李旭
Original assignee: Boruikang Medical Technology Shanghai Co ltd
Current assignee: Boruikang Medical Technology Shanghai Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-06-09
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to the technical field of medical equipment, in particular to an electrode lock, which comprises a fixing piece, a clamping piece and a pressing piece, wherein a mounting hole is formed in the fixing piece; the clamping piece is positioned in the mounting hole and comprises a clamping body and at least two clamping arms positioned on the clamping body, a first opening for placing the electrode is formed in the clamping body, one end opposite to the first opening is a first closed end, the fixed end of the clamping arm is fixedly connected with the first closed end, and the free end of the clamping arm faces the first opening to form a second opening; the pressing piece is clamped into a gap between the clamping arms and the clamping body, so that the two clamping arms are close to each other to clamp the electrode. According to the electrode lock disclosed by the utility model, a certain angle exists between the two clamping arms before the intervention of the pressing piece, and the two clamping arms are parallel after the intervention of the pressing piece, so that the situation that the electrode is clamped and injured due to the fact that the clamping body is extruded by misoperation can be effectively avoided.

Description

Electrode lock

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an electrode lock.

Background

The electrode is a multi-contact electrode made of special materials, and has the greatest advantages of directly recording the electrical activity of the cerebral cortex and being implanted into the cranium. The cortex electroencephalogram or deep electroencephalogram recorded by the electrode can furthest eliminate the influence of structures such as scalp, skull, dura mater and the like on the electroencephalogram activity record; and the influence of the spreading of the brain electrical activity to the surrounding or distant places on the judgment of the origin of the seizure.

Existing electrode fixtures are typically composed of two parts: when the electrode reaches a target point, a doctor bends the electrode and then fixes the electrode into a fixing groove of the fixing base to temporarily fix the electrode, and finally the fixing cover is fixed on the fixing base, so that an electrode lead is fixed between the fixing base and the fixing cover.

The current fixing device needs to bend the electrode and then fix the electrode to the fixed slot of the fixed base in the electrode fixing process, and in the electrode bending and fixing process in the fixed slot, the electrode cannot be ensured not to move, so that the fixing precision of the electrode can be greatly influenced, and the treatment cannot achieve the expected effect.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the current fixing device needs to bend the electrode and then fix the electrode to the fixed slot of the fixed base in the process of fixing the electrode to the fixed slot, and the electrode cannot be ensured not to move in the process of bending and fixing the electrode to the fixed slot, so that the fixing precision of the electrode can be greatly influenced.

In order to solve the above technical problems, the present utility model provides an electrode lock, including:

the fixing piece is internally provided with a mounting hole;

the clamping piece is positioned in the mounting hole and comprises a clamping body and at least two clamping arms positioned on the clamping body, a first opening for placing an electrode is formed in the clamping body, one end opposite to the first opening is a first closed end, the fixed end of the clamping arm is fixedly connected with the first closed end, and the free end of the clamping arm faces the first opening to form a second opening; the pressing piece is clamped into a gap between the clamping arms and the clamping body, so that the two clamping arms are close to each other to clamp the electrode.

Further, the second opening and the first opening face the same direction, the fixed end of the clamping arm is a second closed end, and the second closed end is fixedly connected with the first closed end;

the distance between the two clamping arms increases from the second closed end to the second opening such that the second opening forms an included angle.

Further, the clamping body comprises two elastic tensioning arms, one ends of the two tensioning arms are connected to form the first closed end, and the other ends of the two tensioning arms form the first opening;

the outside of tensioning arm is provided with a plurality of evenly distributed's first cylinder flange, is provided with at least three second cylinder flange in the mounting hole, and when the clamping piece assembled to the mounting hole, first cylinder flange is arranged in the clearance of two adjacent second cylinder flanges to restrict the rotary motion of clamping piece.

Further, the included angle a between the two clamping arms is within the range of 10 degrees or more and 20 degrees or less.

Further, a plurality of third cylindrical flanges are arranged on the inner side surfaces of the two clamping arms, and the distance between the two adjacent third cylindrical flanges on the same side is larger than the diameter of the electrode so as to limit the movement of the electrode along the direction of the clamping arms.

Further, the pressing member includes: the device comprises an upper boss, a first notch arranged on the upper boss and at least two lower bosses distributed on two sides of the first notch;

the first notch is communicated with the first opening so as to enable the electrode to pass through;

the lower boss is suitable for being clamped into a gap between the clamping arms and the clamping body, so that the other ends of the two clamping arms are close to each other.

Further, a first chamfer is arranged at the lower end of the lower boss so as to facilitate the insertion of the lower boss into a gap between the clamping arm and the clamping body; the first notch is provided with a second chamfer to facilitate insertion of an electrode into the first notch.

Further, the mounting includes first boss and second boss, first boss is located the second boss below, first boss and second boss fixed connection, the external diameter of second boss is greater than the external diameter of first boss, be provided with first centre bore on the first boss, be provided with the second centre bore on the second boss, first centre bore with the second centre bore link up mutually, first centre bore with the second centre bore forms to be the mounting hole.

Further, the upper end of first centre bore sets up at least one first stopper, and first centre bore lower extreme is provided with at least one second stopper to the axial displacement of restriction holder, first stopper and second stopper and mounting fixed connection, first stopper and second stopper are crisscross the setting in proper order along mounting hole circumferencial direction.

Further, the electrode lock further comprises a fixed cover covered on the mounting hole; the fixing cover is provided with a buckle, and the second boss is provided with a clamping hole matched with the buckle in a clamping way; the fixed lid below is provided with compresses tightly the boss, compress tightly boss and fixed lid fixed connection, compress tightly the boss with compress tightly the piece and contradict.

The electrode lock has the advantages that the clamping piece is clamped into the clamping piece through the pressing piece, so that the clamping piece clamps the electrode, the electrode cannot be displaced in the fixing process of the electrode, the electrode is fixed more easily and reliably, the distance d between the two clamping arms is set to be gradually increased along the direction from the first closed end to the first open end, the width of the open end is relatively larger, the open end passes through the electrode first, the electrode passes through conveniently, and the installation difficulty is reduced. On the other hand, when the compressing tightly the piece and go in, the motion of clamping arm can not lead to the centre gripping body motion, has both guaranteed that the clamping piece can not deviate from the boss department of base, also can not cause the clamping arm too big to electrode pressure, can not harm the electrode, can also effectively avoid the maloperation to extrude the centre gripping body and lead to the electrode to be taken place by the condition of clamping.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of an electrode lock of the present utility model.

Fig. 2 is a schematic structural view of the clamping member of the present utility model.

Fig. 3 is a schematic structural view of the fixing member of the present utility model.

Fig. 4 is a front view of the mount of the present utility model.

Fig. 5 is a top view of the mount of the present utility model.

Fig. 6 is a schematic structural view of the pressing member of the present utility model.

Fig. 7 is a schematic structural view of the stationary cover of the present utility model.

In the figure: 1. a fixing member; 11. a first boss; 111. a first central bore; 112. a second cylindrical flange; 113. a first limiting block; 114. a second limiting block; 12. a second boss; 121. a second central bore; 122. a clamping hole; 13. a mounting hole;

2. a clamping member; 21. a tensioning arm; 211. a first cylindrical flange; 22. a first opening; 23. a clamping arm; 231. a third cylindrical flange; 24. reinforcing ribs;

3. a pressing member; 31. an upper boss; 311. a first notch; 312. a second chamfer; 32. a lower boss; 321. a first chamfer;

4. a fixed cover; 41. a buckle; 42. and (5) compacting the boss.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 7, which are the preferred embodiments of the present utility model, an electrode lock comprises a fixing member 1, a clamping member 2, a pressing member 3 and a fixing cover 4, wherein a mounting hole 13 is formed in the fixing member 1, and the fixing cover 4 covers the mounting hole 13; the clamping piece 2 is positioned in the mounting hole 13, the clamping piece 2 comprises a clamping body and at least two clamping arms 23 positioned on the clamping body, a first opening 22 is arranged on the clamping body, one end of the clamping arm 23 opposite to the first opening 22 is a first closed end, one end of the clamping arm is fixedly connected with the first closed end, and the other end of the clamping arm is in a free state; the pressing member 3 is caught in a gap between the clamping arms 23 and the clamping body so that the two clamping arms 23 are brought close to each other to clamp the electrode. The fixing member 1 and the fixing cover 4 may be manufactured by, but not limited to, implant-grade Polyetheretherketone (PEEK), and the clamping member 2 and the pressing member 3 are manufactured by implant-grade polypropylene (PP). The electrode is clamped and fixed through the clamping piece 2, and then the clamping piece 3 is clamped into the clamping piece 2, so that the clamping piece 2 clamps the electrode, the electrode cannot be shifted in the fixing process of the electrode, and the electrode is fixed more easily and reliably. In this embodiment, the fixing member 1, the fixing cover 4, the clamping member 2, and the pressing member 3 may be made of PEEK, PC, PE, or the like.

The distance between the two clamping arms 23 is d, d gradually increases along the direction from the first closed end to the first opening 22 end, an included angle a is formed between the two clamping arms 23, and the included angle a is more than or equal to 10 degrees and less than or equal to 20 degrees. One end of the two clamping arms 23 forms a second opening, the second opening and the first opening 22 face the same direction, the opposite end of the second opening is a second closed end, and the second closed end is fixedly connected with the first closed end. By arranging the distance d between the two clamping arms 23 to be gradually increased along the direction from the first closed end to the first opening 22 end, the width of the opening end is relatively large, and the opening end passes through the electrode first, so that the electrode can pass through conveniently, and the installation difficulty is reduced.

The clamping body comprises two elastic tensioning arms 21, one ends of the two tensioning arms 21 are connected to form a first closed end, a space is reserved between the other ends of the two tensioning arms 21 to form a first opening 22, and the two clamping arms 23 are connected with the two tensioning arms 21 through reinforcing ribs 24. The tensioning arm 21 is arranged in an arc shape, and the arc shape of the tensioning arm 21 is matched with the arc shape of the mounting hole 13. The outer side of the tensioning arm 21 is provided with a plurality of uniformly distributed first cylindrical flanges 211, and the mounting hole 13 is provided with at least three second cylindrical flanges 112, and when the clamping member is assembled into the mounting hole 13, the first cylindrical flanges 211 are positioned in the gaps between two adjacent second cylindrical flanges 112 to limit the rotational movement of the clamping member 2.

A plurality of third cylindrical flanges 231 are provided on the inner sides of the two clamping arms 23, and the distance between two adjacent third cylindrical flanges 231 on the same side is b, b being larger than the diameter of the electrode, so as to limit the movement of the electrode along the direction of the clamping arms 23.

The pressing piece 3 comprises an upper boss 31, a first notch 311 formed on the upper boss 31 and at least two lower bosses 32 distributed on two sides of the first notch 311; the first notch 311 is communicated with the first opening 22 so as to enable the electrode to pass through; the lower boss 32 is adapted to be snapped into the gap between the clamping arms 23 and the clamping body, bringing the other ends of the two clamping arms 23 closer to each other. The lower end of the lower boss 32 is provided with a first chamfer 321 so that the lower boss 32 is inserted into a gap between the clamping arm 23 and the clamping body; a second chamfer 312 is provided at the first notch 311 to facilitate insertion of the electrode into the first notch 311.

The mounting 1 includes first boss 11 and second boss 12, and first boss 11 is located second boss 12 below, and first boss 11 and second boss 12 fixed connection, first boss 11 are the boss of external diameter 13mm-13.8mm preferably, and the external diameter of second boss 12 is greater than the external diameter of first boss 11, and the downside of second boss 12 is the arcwall face to better laminating mutually with the skull, be provided with first centre bore 111 on the first boss 11, be provided with second centre bore 121 on the second boss 12, first centre bore 111 link up with second centre bore 121 mutually, and first centre bore 111 and second centre bore 121 form into mounting hole 13.

The upper end of first centre bore 111 sets up at least one first stopper 113, and first centre bore 111 lower extreme is provided with at least one second stopper 114 to the axial displacement of restriction holder 2, first stopper 113 and second stopper 114 and mounting 1 fixed connection, first stopper 113 and second stopper 114 are crisscross setting in proper order along mounting hole 13 circumferencial direction.

The fixed cover 4 is provided with buckles 41, preferably, 3 buckles 41 which are uniform along the circumferential direction of the fixed cover 4 are arranged, the buckles 41 are arranged in a hook shape or an L shape, and the second boss 12 is provided with a clamping hole 122 which is matched with the buckles 41 in a clamping way.

The fixed lid 4 below is provided with compresses tightly boss 42, and preferably, 3 evenly arranged compress tightly boss 42 are set up, compress tightly boss 42 and be little cylinder boss, compress tightly boss 42 and fixed lid 4 fixed connection, compress tightly boss 42 and compress tightly piece 3 and contradict. The cover 4 is fixed. The edge of the fixed cover 4 is provided with three notches for identifying the installation direction.

In summary, the electrode lock of the utility model is clamped into the clamping piece 2 through the pressing piece 3, so that the clamping piece 2 clamps the electrode, and the electrode is not displaced in the fixing process of the electrode, so that the electrode is fixed more easily and reliably. The electrode is clamped by the two clamping arms 23, then the two clamping arms 23 are clamped by the pressing piece 3 so as to clamp the electrode, the electrode is not displaced in the fixing process of the electrode, the electrode is fixed more easily and reliably, the distance d between the two clamping arms 23 is set to be gradually increased along the direction from the first closed end to the first opening 22 end, the width of the opening end is relatively larger, and the opening end passes through the electrode first, so that the electrode can pass conveniently, and the installation difficulty is reduced. By arranging the two clamping arms 23 to be connected with the closed end of the clamping body, when the clamping body is elastically deformed, the two clamping arms 23 do not move simultaneously with the clamping body, namely, the distance between the two clamping arms 23 does not change, when the clamping body is installed in the installation hole 13, the clamping body is pressed to reduce the outer diameter of the clamping body, the distance between the two clamping arms 23 does not reduce, and therefore, the pressure of the clamping arms 23 to an electrode is not excessively large, and the electrode is not damaged.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined as the scope of the claims.

Claims

1. An electrode lock, comprising:

a fixing piece (1) is internally provided with a mounting hole (13);

the clamping piece (2) is positioned in the mounting hole (13), the clamping piece (2) comprises a clamping body and at least two clamping arms (23) positioned on the clamping body, a first opening (22) for placing an electrode is arranged on the clamping body, one opposite end of the first opening (22) is a first closed end, the fixed end of the clamping arm (23) is fixedly connected with the first closed end, and the free end of the clamping arm (23) faces the first opening (22) to form a second opening;

the pressing piece (3) is clamped into a gap between the clamping arms (23) and the clamping body, so that the two clamping arms (23) are close to each other to clamp the electrode.

2. The electrode lock of claim 1, wherein the electrode lock comprises a plurality of electrode pins,

the second opening and the first opening (22) face the same direction, the fixed end of the clamping arm (23) is a second closed end, and the second closed end is fixedly connected with the first closed end;

the distance between the two clamping arms (23) increases gradually from the second closed end to the second opening such that the second opening forms an angle.

3. The electrode lock of claim 2, wherein the electrode lock comprises a plurality of electrode pins,

the clamping body comprises two elastic tensioning arms (21), one ends of the two tensioning arms (21) are connected to form the first closed end, and the other ends of the two tensioning arms (21) form the first opening (22);

a plurality of uniformly distributed first cylindrical flanges (211) are arranged on the outer side of the tensioning arm (21), at least three second cylindrical flanges (112) are arranged in the mounting hole (13), and when the clamping piece is assembled into the mounting hole (13), the first cylindrical flanges (211) are positioned in gaps between two adjacent second cylindrical flanges (112) so as to limit the rotation movement of the clamping piece (2).

4. The electrode lock of claim 1, wherein the electrode lock comprises a plurality of electrode pins,

the included angle a between the two clamping arms (23) is within the range of 10 degrees-a-20 degrees.

5. The electrode lock of claim 1, wherein the electrode lock comprises a plurality of electrode pins,

a plurality of third cylindrical flanges (231) are arranged on the inner side surfaces of the two clamping arms (23), and the distance between the two third cylindrical flanges (231) adjacent to the same side is larger than the diameter of the electrode so as to limit the movement of the electrode along the direction of the clamping arms (23).

6. The electrode lock of claim 1, wherein the electrode lock comprises a plurality of electrode pins,

the pressing member (3) includes: the device comprises an upper boss (31), a first notch (311) formed in the upper boss (31) and at least two lower bosses (32) distributed on two sides of the first notch (311);

the first notch (311) is communicated with the first opening (22) so as to enable the electrode to pass through;

the lower boss (32) is suitable for being clamped into a gap between the clamping arms (23) and the clamping body, so that the other ends of the two clamping arms (23) are close to each other.

7. The electrode lock of claim 6, wherein,

the lower end of the lower boss (32) is provided with a first chamfer (321) so as to facilitate the insertion of the lower boss (32) into a gap between the clamping arm (23) and the clamping body; a second chamfer (312) is arranged at the first notch (311) so as to facilitate the insertion of an electrode into the first notch (311).

8. The electrode lock of claim 1, wherein the electrode lock comprises a plurality of electrode pins,

mounting (1) is including first boss (11) and second boss (12), first boss (11) are located second boss (12) below, first boss (11) and second boss (12) fixed connection, the external diameter of second boss (12) is greater than the external diameter of first boss (11), be provided with first centre bore (111) on first boss (11), be provided with second centre bore (121) on second boss (12), first centre bore (111) with second centre bore (121) link up mutually, first centre bore (111) with second centre bore (121) form into mounting hole (13).

9. The electrode lock of claim 8, wherein the electrode lock is configured to be secured to the housing,

the upper end of first centre bore (111) sets up at least one first stopper (113), and first centre bore (111) lower extreme is provided with at least one second stopper (114) to the axial displacement of restriction holder (2), first stopper (113) and second stopper (114) and mounting (1) fixed connection, first stopper (113) and second stopper (114) are crisscross setting in proper order along mounting hole (13) circumferencial direction.

10. The electrode lock of claim 8, wherein the electrode lock is configured to be secured to the housing,

the electrode lock also comprises a fixed cover (4) covered on the mounting hole (13); a buckle (41) is arranged on the fixed cover (4), and a clamping hole (122) matched with the buckle (41) in a clamping way is arranged on the second boss (12);

the fixed lid (4) below is provided with compresses tightly boss (42), compress tightly boss (42) and fixed lid (4) fixed connection, compress tightly boss (42) with compress tightly piece (3) and contradict.