CN113926081A

CN113926081A - An electrode protection cap

Info

Publication number: CN113926081A
Application number: CN202111323452.XA
Authority: CN
Inventors: 宋春辉; 王航
Original assignee: Beijing Pins Medical Co Ltd
Current assignee: Beijing Pins Medical Co Ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-01-14
Anticipated expiration: 2041-11-08
Also published as: CN113926081B

Abstract

The invention discloses an electrode protection cap, which comprises a sleeve, a locking member, a sealing ring and a screw. One end of the sleeve is closed, the other end is open, and the open end is used for inserting an electrode; the locking member is embedded in the Inside the sleeve; the locking member is provided with an electrode hole for the electrode to pass through; the sealing ring is installed on the open end of the sleeve; the top of the locking member is also provided with a connection with the electrode The hole is vertically arranged screw hole, the side wall of the sleeve is also provided with a sealing member, the sealing member includes a through hole arranged coaxially with the screw hole, and the screw can be screwed in the screw hole In the middle, the bottom surface of the nut of the screw presses against the seal to form a seal. The invention can easily realize the fixing and loosening of the electrodes, and does not require additional tools such as torque screwdrivers to perform further operations, and can achieve sealing without binding wires.

Description

Electrode protective cap

Technical Field

The invention relates to the technical field of medical instruments, in particular to an electrode protective cap.

Background

DBS (Deep Brain Stimulation) is an effective technology for treating advanced and drug-refractory dyskinesia and dysthymia at present, and particularly has obvious curative effect on the treatment of Parkinson disease.

In the practice of DBS surgery, the two steps of local anesthesia of the head during electrode placement and general anesthesia during posterior placement of the extension lead and pulse generator may be staged so that to prevent infection, the electrode is temporarily coiled and inserted under the scalp after it is implanted and secured in the cranium and the scalp incision is temporarily sutured. When the electrode is coiled and plugged into the scalp, if the connecting end of the electrode is not protected, blood can enter the electrode, and the electrode can be mechanically bent at the same time, so that the connecting end can be damaged. At the moment, the electrode connecting end is sleeved by the electrode protective cap, so that the functions of protection and leakage prevention can be achieved.

Disclosure of Invention

The present invention is directed to a protective cap for an electrode, which solves at least one of the above problems and enables easy fixation and detachment of the electrode.

In view of the above, the present invention provides an electrode protection cap, which comprises a sleeve, a locking member, a sealing ring and a screw;

one end of the sleeve is closed, the other end of the sleeve is opened, and the open end of the sleeve is used for inserting an electrode;

the locking piece is arranged in the sleeve; the locking piece is provided with an electrode hole for the electrode to pass through;

the sealing ring is arranged at the opening end of the sleeve;

the locking piece is further provided with a screw hole perpendicular to the electrode hole, a sealing piece is further arranged on the side wall of the sleeve, the sealing piece comprises a through hole coaxial with the screw hole, and the screw can be installed in the screw hole and abuts against the sealing piece to form sealing.

Preferably, the screw hole of the locker passes through the sidewall of the sleeve along the through hole.

Preferably, the top surface of the sealing element provided with the through hole comprises a first abutting surface, and the top surface of the locking element provided with the screw hole comprises a second abutting surface; the first abutting surface is parallel to and slightly higher than the second abutting surface.

Preferably, the top surface of the sealing element provided with the through hole comprises a first abutting surface, a sealing ring protruding from the first abutting surface is arranged on the first abutting surface around the through hole, and the top surface of the locking element provided with the screw hole comprises a second abutting surface; the protruding height of the sealing ring is slightly higher than the second abutting surface.

Preferably, the sealing ring has an arc top.

Preferably, the first abutment surface is parallel to and not higher than the second abutment surface.

Preferably, after the screw is spirally arranged in the screw hole, the bottom surface of the screw cap of the screw is abutted against the top surface of the locking piece provided with the screw hole to limit the screw; the bottom surface of the screw rod of the screw is abutted against the side surface of the electrode to form fixation of the electrode.

Preferably, the sleeve and the sealing element are made of a flexible material which can be elastically deformed;

preferably, the sleeve and the seal are integrally formed.

Preferably, the locking member and the screw are made of a polymer material.

Preferably, the locking member is integrally 'convex'.

The invention has the technical effects that:

1. the electrode protection cap is simple and convenient to operate, can fix and loosen an electrode by directly screwing and unscrewing the screw, does not need to additionally perform further operation on other tools such as a torque screwdriver and the like, can realize sealing without binding wires, and is lower in cost, easy to form and simple to assemble.

2. Through the top surface of the nut bottom surface butt screw of screw, the top surface that realizes the retaining member is spacing to the screw, prevents that the compression is excessive.

3. The screw is made of high polymer materials, and the defects of burrs, oxidation, deformation and the like generated in the machining process of the metal locking part can be overcome through injection molding.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a protective cap according to the present invention;

FIG. 2 is a schematic view of the electrode protection cap inserted into the electrode according to the present invention;

FIG. 3 is a schematic cross-sectional view of an electrode having an electrode protective cap inserted therein according to the present invention;

fig. 4 is an exploded view of the electrode cap of the present invention.

In the figure: 1-a sleeve; 2-a locking member; 21-electrode hole; 22-screw holes; 23-a second abutment surface; 3-sealing ring; 4-an electrode; 5-a screw; 6-a seal; 61-a through hole; 62-a sealing ring; 63-first abutment surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.

Referring to fig. 1 to 4, an embodiment of the present invention provides an electrode protection cap, which includes a sleeve 1, a locking member 2, a sealing ring 3, and a screw 5.

The sleeve 1 is closed at one end and open at the other end, the open end being used for inserting an electrode 4.

Retaining member 2 inlays to be established in sleeve pipe 1, seted up on the retaining member 2 and be used for electrode 4 passes the electrode hole 21.

The sealing ring 3 is mounted at the open end of the sleeve 1.

The locking member 2 is further provided with a screw hole 22 which is perpendicular to the electrode hole 21, a sealing member 6 is further arranged on the side wall of the sleeve 1, the sealing member 6 comprises a through hole 61 which is coaxial with the screw hole 22, and the screw 5 can be spirally arranged in the screw hole 22 and abuts against the sealing member 6 to form sealing.

For the purpose of describing the specific structure of the electrode protecting cap, the side of each structure near the screw 5 to be screwed is referred to as "top", and the opposite side is referred to as "bottom". In a preferred embodiment, the locking element 2 is entirely "male" in shape, so as to be easily inserted inside the casing 1. One side of the bottom of the electrode hole 21 is arc-shaped, and the radius of the arc-shaped is equal to or slightly larger than that of the electrode 4, so that the electrode 4 is suitable for abutting against the bottom of the electrode hole 21. An extended gap is formed at the top side of the electrode hole 21 so as to facilitate the insertion of the electrode 4 into the electrode hole 21. The screw hole 22 is positioned right above the side surface of the electrode hole 21, so that when the screw 5 abuts against the electrode 4, the electrode 4 is uniformly stressed.

In a preferred embodiment, the top surface of the sealing element 6 provided with the through hole 61 comprises a first abutment surface 63, the top surface of the locking element 2 provided with the threaded hole 22 comprises a second abutment surface 23, and the threaded hole 22 of the locking element 2 passes through the side wall of the sleeve 1 along the through hole 61. The first abutment surface 63 is parallel to and slightly higher than the second abutment surface 23. In this embodiment, after the screw 5 is screwed into the screw hole 22, the first contact surface 63 is elastically deformed to come into contact with a bottom surface of the screw 5 to form a sealed state.

In another alternative embodiment, the top surface of the sealing element 6, which is provided with the through hole 61, comprises a first abutment surface 63, and the first abutment surface 63 is provided with a sealing ring 62 around the through hole 61 and protruding from the first abutment surface 63. The top surface of the screw hole 22 comprises a second abutting surface 23, and the screw hole 22 of the locking member 2 penetrates through the side wall of the sleeve 1 along the through hole 61. The sealing ring 62 has a raised height slightly higher than the second abutment surface 23. In this embodiment, after the screw 5 is screwed into the screw hole 22, the seal ring 62 is elastically deformed to be in a sealed state by abutting against a nut bottom surface of the screw 5. Preferably, the seal ring 62 has a curved top. More preferably, the first contact surface 63 is parallel to and not higher than the second contact surface 23, so that only the seal ring 62 is elastically deformed during screwing of the screw 5, and the seal effect is more excellent by appropriate and uniform elastic deformation of the seal ring 62.

Through the embodiment, the electrode 4 can be fixed and loosened by directly screwing and unscrewing the screw 5, and the locking part is screwed into the locking part 2 through the screw 5 to clamp the electrode, so that the locking effect is achieved.

In the preferred embodiment of the present invention, after the screw 5 is screwed into the screw hole 22, the bottom surface of the screw 5 of the electrode protecting cap abuts against the top surface of the locking member 2, on which the screw hole 22 is opened. Therefore, the screw 5 is limited by the top surface of the locking piece 2 provided with the screw hole 22, and excessive compression is prevented. Simultaneously, the screw rod of screw 5 has the length of predetermined looks adaptation behind the nut bottom surface butt of screw 5 the top surface of screw 22, the screw rod bottom surface butt of screw 5 the side of electrode 4 to form the fixed to electrode 4, just the screw rod of screw 5 can satisfy the butt pressure to electrode 4 and predetermine the requirement because of having the length of predetermined looks adaptation. Preferably, the length of the stud of the screw 5 is such that the radial interference between the stud of the screw 5 and the electrode 4 is between 0.03 and 0.07mm after the bottom surface of the nut of the screw 5 abuts the top surface of the threaded hole 22.

In a preferred embodiment of the present invention, the head of the screw 5 of the electrode protection cap is provided with anti-slip threads. Thereby facilitating rotation of the screw.

In a preferred embodiment of the present invention, the sleeve 1 and the sealing member 6 of the electrode protecting cap are made of a soft material, and specifically, are formed by processing a soft plastic material capable of undergoing elastic deformation. Preferably, the seal 6 is integrally formed with the sleeve 1. Retaining member 2 with screw 5 adopts macromolecular material to make, like plastics, through injection moulding to can avoid defects such as burr, oxidation, deformation that the metal retaining member course of working produced. The sealing ring 3 is formed by processing a soft rubber material. In addition, the opening end of the sleeve 1 is formed with a step taper hole, the tapered part of the step taper hole extends towards the opposite direction of the opening end and the aperture is reduced, the step taper hole forms a step hole section with a large aperture at the opening end, and the step hole section with the large aperture is used for accommodating the sealing ring.

In the preferred embodiment of the invention, the seal 6 is sealingly connected to the retaining member 2. The sealing ring 3 is of an annular structure, is arranged at an opening of the opening end of the sleeve 1, and is connected with the sleeve 1 in a sealing manner. When the electrode 4 is inserted into the sleeve 1 from the inside of the sealing ring 3, the electrode 4 is connected with the sealing ring 3 in a sealing way, and the screw 5 is pressed against the sealing element 6 to be connected in a sealing way, so that the electrode is sealed.

The embodiment of the invention aims to protect an electrode protective cap, which has the following effects:

the electrode protection cap is composed of a sleeve 1, a locking part 2, a sealing ring 3 and a screw 5, wherein the sleeve 1 is formed by processing a soft rubber material, the locking part 2 is assembled inside, the sealing ring 3 is arranged at the position of a final opening, the sealing part 6 is arranged on the sleeve 1, the fixing and loosening of the electrode can be realized by directly screwing and unscrewing the screw 5, the further operation of other tools such as a torque screwdriver and the like is not needed, the sealing can be realized without binding wires, the cost is lower, the forming is easy, and the assembling is simple.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. An electrode protection cap, characterized in that it comprises a sleeve (1), a locking member (2), a sealing ring (3) and a screw (5);

One end of the sleeve (1) is closed, the other end is open, and the open end is inserted into the electrode (4);

The locking member (2) is arranged in the sleeve (1); the locking member (2) is provided with an electrode hole (21) for the electrode (4) to pass through;

The sealing ring (3) is installed on the open end of the sleeve (1);

The locking member (2) is also provided with a screw hole (22) vertically arranged with the electrode hole (21), and a sealing member (6) is also provided on the side wall of the sleeve (1). The sealing member (6) includes a through hole (61) coaxially arranged with the screw hole (22), and the screw (5) can be installed in the screw hole (22) and press against the sealing member ( 6) to form a seal.

2 . The electrode protection cap according to claim 1 , wherein the screw hole ( 22 ) of the locking member ( 2 ) passes through the sleeve ( 1 ) along the through hole ( 61 ). 3 . side wall.

3 . The electrode protection cap according to claim 2 , wherein the top surface of the sealing member ( 6 ) where the through hole ( 61 ) is opened comprises a first abutting surface ( 63 ), and the locking member ( 2 ) is opened. 4 . The top surface of the screw hole (22) includes a second abutting surface (23); the first abutting surface (63) is parallel to and slightly higher than the second abutting surface (23).

4 . The electrode protection cap according to claim 2 , wherein the top surface of the sealing member ( 6 ) on which the through hole ( 61 ) is opened comprises a first abutting surface ( 63 ), and the first abutting surface (63) There is a sealing ring (62) protruding from the first abutting surface (63) around the through hole (61), and the locking member (2) is provided with a top surface of the screw hole (22) A second abutting surface (23) is included; the raised height of the sealing ring (62) is slightly higher than the second abutting surface (23).

5. The electrode protection cap according to claim 4, wherein the sealing ring (62) has an arc top.

6. The electrode protection cap according to claim 4, wherein the first abutting surface (63) is parallel to and not higher than the second abutting surface (23).

7 . The electrode protection cap according to claim 1 , wherein after the screw ( 5 ) is screwed into the screw hole ( 22 ), the bottom surface of the nut of the screw ( 5 ) abuts against the lock. 8 . The top surface of the screw hole (22) is opened on the tightening member (2) to form a limit for the screw (5); the bottom surface of the screw of the screw (5) abuts the side surface of the electrode (4) to form a counter electrode (4). ) is fixed.

8. The electrode protection cap according to claim 1, characterized in that,

The sleeve (1) and the seal (6) are made of elastically deformable soft materials;

The locking member (2) and the screw (5) are made of polymer materials.

9. The electrode protection cap according to claim 8, characterized in that,

The sleeve (1) and the seal (6) are integrally formed.

10 . The electrode protection cap according to claim 1 , wherein the locking member ( 2 ) has a “convex” shape as a whole. 11 .