Electrode lead convenient for electrode ring positioning and nerve stimulator

Abstract

The nerve stimulator comprises a central tube, connecting rings and electrode rings are alternately arranged on the two sides of the central tube respectively, a plug is arranged on one side of the electrode ring at the end, and the central tube is provided with a hollow inner cavity. According to the utility model, the central tube, the connecting ring and the electrode ring are connected and are self-contained, the consistency of the outer diameter size is good, and meanwhile, the electrode ring can be reliably positioned in the circumferential direction and the axial direction through the design of the grooves in the connecting ring and the electrode ring.

Description

Technical Field

[0001] The utility model relates to the field of medical electric wire connectors, in particular to an electrode wire and a nerve stimulator which are convenient for electrode ring positioning. Background Technique

[0002] The electrode wire for nerve stimulator electrode ring positioning has a relatively thin outer diameter and multiple wires passing through it internally. It is a component for conducting the current of the nerve stimulator to the patient's treatment position. The main unit releases current according to the set channels and rhythms and transmits it through the electrode wire to the patient's nerve, and electrically stimulates the contacted nerve part to treat or relieve the patient's disease.

[0003] The existing electrode wire for nerve stimulator electrode ring positioning mainly consists of parts such as a catheter, a C-shaped electrode ring, an electrode ring patch, and a wire. Its application part is the electrode ring discharging to electrically stimulate the patient.

[0004] The current manufacturing process of the electrode wire for nerve stimulator electrode ring positioning is to manufacture an intermediate catheter. The structures at both ends of the catheter are formed by an injection-molded catheter skeleton through mold opening. The three parts are hot-melt butt-jointed to form an integral body. Then, the electrode ring is clamped on the catheter skeleton, the wire is welded on the electrode ring patch to form a component, and then the component and the C-shaped ring are laser-welded together. Finally, the interior is filled with glue to form an integral structure.

[0005] In the existing electrode wire for nerve stimulator electrode ring positioning, the electrode ring is composed of two parts combined. One is a C-shaped ring and the other is an electrode ring patch. After the C-shaped part of the electrode ring is clamped into the injection-molded skeleton card slot, the electrode ring patch with a wire needs to be laser-welded to the opening of the C-shaped ring. Since the injection-molded catheter skeleton is too small, it is difficult to position the catheter and the electrode ring circumferentially and axially. There will be problems such as unreliable positioning, rotation, and shaking during the positioning of the electrode ring and the laser welding of the electrode ring patch. The alignment process during laser welding is difficult, the appearance is not round enough, and multiple glue filling process steps are required. Content of the Utility Model

[0006] In view of this, the utility model provides an electrode wire convenient for electrode ring positioning, aiming to solve the problems existing in the prior art.

[0007] Specifically, an electrode wire convenient for electrode ring positioning of the utility model includes a central tube, connection rings and electrode rings are alternately arranged on both sides of the central tube respectively, and a plug is arranged on one side of the electrode ring at the end;

[0008] Wherein, the central tube has a hollow inner cavity.

[0009] On the basis of the above scheme, the connection ring includes an intermediate part with the same diameter as the central tube;

[0010] On both sides of the middle part, a first cylindrical stepped structure connected to the central tube and a second cylindrical stepped structure connected to the electrode ring are respectively arranged.

[0011] Based on the above solution, at least one limiting protrusion for circumferentially positioning the electrode ring is arranged along the axial direction of the middle part, and a limiting groove matching the limiting protrusion is arranged on the electrode ring.

[0012] Based on the above solution, the diameters of the first cylindrical stepped structure and the second cylindrical stepped structure are the same as the inner diameter of the hollow inner cavity and the inner diameter of the electrode ring.

[0013] Based on the above solution, the limiting protrusion and the limiting groove are selected from a U-shaped structure, a rectangular structure or a circular structure.

[0014] In addition, a nerve stimulator includes:

[0015] A machine body provided with a connection interface; and

[0016] An electrode wire for facilitating the positioning of the electrode ring, the electrode wire being the electrode wire for facilitating the positioning of the electrode ring, and a connector of the electrode wire for facilitating the positioning of the electrode ring is inserted into the connection interface.

[0017] The utility model designs the C-shaped ring into a circular ring and opens a slot on the circular ring, and manufactures a connection ring so that the electrode ring can be reliably positioned circumferentially and axially. The positioning is simple and convenient, and the reliability is higher, solving the problems of positioning and connection of the electrode ring and the insulating part on the electrode wire of the nerve stimulator. Description of the Drawings

[0018] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as limiting the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0019] Figure 1 It is a schematic structural diagram of the electrode wire for facilitating the positioning of the electrode ring in Embodiment 1;

[0020] Figure 2 It is a schematic structural diagram of the plug in Embodiment 1;

[0021] Figure 3 It is a schematic structural diagram of the connection ring in Embodiment 1;

[0022] Figure 4 It is a schematic structural diagram of the electrode ring in Embodiment 1. Detailed Description of the Embodiments

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0024] Embodiment 1

[0025] As Figure 1-2 shown, an electrode lead facilitating the positioning of an electrode ring includes a central tube 1. Connecting rings 2 and electrode rings 3 are alternately arranged on one side of the central tube 1. A plug 4 is arranged on one side of the electrode ring 3 at the end. In addition, connecting rings 2 and electrode rings 3 are alternately arranged on the other side of the central tube 1. A plug 4 is arranged on one side of the electrode ring 3 at the end. Among them, the central tube 1 has a hollow inner cavity 1-1.

[0026] As Figure 3 shown, as a specific implementation, the connecting ring 2 includes an intermediate part 2-1 having the same diameter as the central tube 1. A first cylindrical stepped structure 2-2 connected to the central tube 1 and a second cylindrical stepped structure 2-3 connected to the electrode ring 3 are respectively arranged on both sides of the intermediate part 2-1. Among them, the diameters of the first cylindrical stepped structure 2-2 and the second cylindrical stepped structure 2-3 are the same as the inner diameter of the hollow inner cavity 1-1 and the inner diameter of the electrode ring 3.

[0027] As Figure 4 shown, as a specific implementation, a limiting protrusion 2-1-1 for circumferentially positioning the electrode ring 3 is arranged along the axial direction of the intermediate part 2-1. A limiting groove 3-1 matching the limiting protrusion 2-1-1 is arranged on the electrode ring 3. Specifically, the connecting ring 2 is respectively integrated with the central tube 1 and the electrode ring 3 on the left and right to form axial positioning. The limiting protrusion 2-1-1 of the connecting ring 2 is stuck into the limiting grooves 3-1 at both ends of the electrode ring 3 to prevent the electrode ring 3 from rotating. Among them, limiting protrusions 2-1-1 are arranged on both sides of the intermediate part 2-1 in the axial direction or only one side is provided with a limiting protrusion 2-1-1.

[0028] Embodiment 2

[0029] Based on the electrode lead facilitating the positioning of the electrode ring in Embodiment 1, this embodiment provides a specific implementation method, and the manufacturing method includes the following steps:

[0030] 1. Insert a round rod into the inner cavity 1-2 of the intermediate tube 1 for preliminary positioning. Install the connecting ring 2 and the electrode ring 3 in sequence. Rotate the electrode ring 3 so that its end face fits over the inner wall of the intermediate tube 1.

[0031] 2. There is a U-shaped limiting protrusion 2-1-1 on the right side of the connecting ring 2. Push the electrode ring 3 with the wire spot-welded or laser-welded on the inner wall to connect it to the connecting ring 2 so that the end face of the connecting ring 2 is on the inner wall of the electrode ring 3 and the limiting protrusion 2-1-1 of the connecting ring is aligned with the end face opening of the electrode ring 3;

[0032] 3. Install the connecting ring 2 and the electrode ring 3 with the limiting protrusions 2-1-1 at both ends in sequence according to the required number N. At this time, the connecting ring 2 and the electrode ring 3 have steps and end faces for positioning in the axial direction, and slots for positioning at both ends in the circumferential direction;

[0033] 4. Finally, place the assembly into a tooling with the same outer diameter as the electrode, extract the initially positioned round rod, fill it with glue, and glue the plug 4 on the end face to form an integral structure, or directly form it by injection molding.

[0034] Example 3

[0035] This embodiment provides a specific implementation of a neurostimulator based on the electrode wire that facilitates positioning of the electrode ring in Example 1. The neurostimulator includes:

[0036] The machine body is provided with a connection interface; and an electrode wire for facilitating the positioning of the electrode ring. The electrode wire for facilitating the positioning of the electrode ring is the electrode wire for facilitating the positioning of the electrode ring described in Example 1, and the connector of the electrode wire for facilitating the positioning of the electrode ring is inserted into the connection interface.

[0037] The electrode rings of the present invention are combined into one, which reduces the number of parts and the laser welding process of the two parts of the electrode ring. The positioning of the parts is simple and convenient, and the reliability is higher. At the same time, the central tube 1, the connecting ring 2 and the electrode ring 3 are self-contained and the axial positioning is reliable, and the outer diameter size consistency is good.

[0038] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. An electrode wire facilitating the positioning of an electrode ring, characterized in that: It includes a central tube (1), with a connecting ring (2) and an electrode ring (3) alternately arranged on both sides of the central tube (1), and a plug (4) is arranged on one side of the electrode ring (3) at the end; Among them, the central tube (1) has a hollow inner cavity (1-1).

2. The electrode lead facilitating the positioning of the electrode ring according to claim 1, characterized in that, The connecting ring (2) includes an intermediate part (2-1) with the same diameter as the central tube (1); On both sides of the intermediate part (2-1), a first cylindrical stepped structure (2-2) connected to the central tube (1) and a second cylindrical stepped structure (2-3) connected to the electrode ring (3) are respectively arranged.

3. The electrode lead facilitating the positioning of the electrode ring according to claim 2, wherein, At least one limiting protrusion (2-1-1) for circumferential positioning of the electrode ring (3) is arranged along the axial direction of the intermediate part (2-1), and a limiting groove (3-1) matching the limiting protrusion (2-1-1) is arranged on the electrode ring (3).

4. The electrode wire facilitating the positioning of the electrode ring according to claim 2, wherein, The diameters of the first cylindrical stepped structure (2-2) and the second cylindrical stepped structure (2-3) are the same as the inner diameter of the hollow inner cavity (1-1) and the inner diameter of the electrode ring (3).

5. The electrode lead facilitating the positioning of the electrode ring according to claim 3, wherein, The limiting protrusion (2-1-1) and the limiting groove (3-1) are selected from a U-shaped structure, a rectangular structure or a circular structure.

6. A nerve stimulator, characterized in that, It includes: A machine body, provided with a connection interface; And An electrode wire for facilitating the positioning of the electrode ring. The electrode wire is the electrode wire for facilitating the positioning of the electrode ring according to any one of claims 1-5, and the connector of the electrode wire for facilitating the positioning of the electrode ring is inserted into the connection interface.

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