Electrode lead and nerve stimulator

Abstract

The utility model relates to an electrode lead and a nerve stimulator, the electrode lead comprises a catheter, a lead is arranged in the catheter, and an annular electrode ring connected with the lead is arranged on the catheter; wherein the conduit is provided with a plurality of clamping grooves for accommodating the annular electrode rings and through holes which are formed in the clamping grooves, are used for allowing the wires to be exposed and are connected with the annular electrode rings. The annular pressure guide pipe and the annular pressure electrode ring are self-contained, the consistency of the outer diameter size is good, the guide pipe overflow material is filled into the limiting groove designed in the annular pressure electrode ring through annular pressure to form circumferential positioning, and the risk that welding spots of wires fall off when the annular pressure electrode ring rotates is avoided; the problems of positioning and connection of the annular electrode ring and the catheter on the electrode wire of the nerve stimulator are solved.

Description

Technical Field

[0001] The utility model relates to the field of medical electric wire connectors, in particular to electrode wires and nerve stimulators. Background Art

[0002] The outer diameter of the electrode wire of a nerve stimulator is generally about 1 mm and it has N wires passing through it. It is a component for conducting the current of the nerve stimulator to the treatment position of the patient. The main unit releases electrical signals according to the set channels and rhythms, and transmits them 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 wires of nerve stimulators are mainly composed of a catheter, a C-shaped electrode ring, an electrode ring patch, wires, etc. The application part is the electrode ring discharging to electrically stimulate the patient for treatment.

[0004] The current manufacturing process of the electrode wire of a nerve stimulator is to manufacture the middle catheter, the structures at both ends of the catheter are formed by injection molding through a mold, the three parts are hot-melt butt-jointed to form an integral body, then the electrode ring is sleeved on the skeleton, the electrode wire is welded on the electrode ring patch, then the component and the C-shaped ring are laser welded, and finally glue is filled to form an integral structure.

[0005] In the existing nerve stimulation electrode wire, the electrode ring is composed of two parts combined. It is necessary to divide the electrode ring into two parts, one C-shaped ring and one electrode ring patch. After the C-shaped part of the electrode ring is positioned, it is necessary to laser weld the electrode ring patch with the wire to the opening of the C-shaped ring. Since the catheter skeleton injection molded is too thin, it is difficult to position the catheter and the electrode ring circumferentially and axially. In this process, problems such as unreliable positioning, rotation, difficult alignment process during laser welding, non-round appearance, gaps in hot-melt butt-jointing, and many process steps will occur. Summary of the Utility Model

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

[0007] Specifically, an electrode wire of the utility model includes a catheter, a wire is arranged in the catheter, and a ring-pressed electrode ring connected to the wire is arranged on the catheter;

[0008] Wherein, a plurality of card slots for accommodating the ring-pressed electrode ring are arranged on the catheter, and through holes for allowing the wire to expose and be connected to the ring-pressed electrode ring are arranged in the card slots.

[0009] On the basis of the above scheme, the wire exposes at the position of the through hole and is spot-welded to the ring-pressed electrode ring arranged in the card slot.

[0010] On the basis of the above solution, limiting protrusions for circumferential positioning of the circumferential compression electrode ring are arranged on both sides of the card slot along the axial direction of the catheter, and limiting grooves matching the limiting protrusions are arranged on the circumferential compression electrode ring.

[0011] On the basis of the above solution, the outer diameter of the circumferential compression electrode ring is the same as the diameter of the catheter.

[0012] On the basis of the above solution, the limiting protrusions and the limiting grooves are of a U-shaped structure, a rectangular structure or a circular structure.

[0013] On the basis of the above solution, it further includes: a plug arranged at the end of the catheter.

[0014] In addition, a nerve stimulator includes:

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

[0016] An electrode wire, the electrode wire being the above-mentioned electrode wire, and a connector of the electrode wire is inserted into the connection interface.

[0017] The utility model designs the C-shaped ring into a circular ring, opens slots and holes on the circular ring to make a connection ring, so that the circumferential compression electrode ring can be reliably positioned circumferentially and axially. The circumferential compression catheter and the circumferential compression electrode ring form an integral body, and the outer diameter size has good consistency. The overflow material of the catheter is filled into the notch designed on the circumferential compression electrode ring through circumferential compression to form circumferential positioning, avoiding the risk of the circumferential compression electrode ring rotating and the wire solder joints falling off; meanwhile, it solves the positioning and connection problems of the circumferential compression electrode ring and the catheter 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 to be a limitation of 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 in Embodiment 1;

[0020] Figure 2 It is a cross-sectional view of the electrode wire in Embodiment 1. Detailed Embodiments

[0021] 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 completely conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0022] Embodiment 1

[0023] As shown in Figure 1-2 , an electrode lead includes a catheter 1, a wire 2 is disposed inside the catheter 1, and a ring compression electrode ring 3 connected to the wire 2 is disposed on the catheter 1. Among them, a plurality of card slots 1-1 for accommodating the ring compression electrode ring 3 and a plurality of through holes 1-2 for allowing the wire 2 to expose are disposed on the catheter 1. Specifically, the wire 2 exposes at the position of the through hole 1-2 and is spot welded to the ring compression electrode ring 3 disposed in the card slot 1-1. The wire 2 is spot welded inside the formed ring compression electrode ring 3 by a spot welder, and the number is N.

[0024] As a specific implementation, limiting protrusions 1-3 for circumferentially positioning the ring compression electrode ring 3 are disposed on both sides of the card slot 1-1 along the axial direction of the catheter 1, and limiting grooves 1-4 matching the limiting protrusions 1-3 are disposed on the ring compression electrode ring 3. After forming, as shown in Figure 1 , the outer diameter of the ring compression electrode ring 3 is the same as the diameter of the catheter 1. At this time, the ring compression electrode ring 3 and the catheter 1 are integrally formed axially. After ring compression, the catheter 1 provided with the limiting protrusions 1-3 is stuck into the limiting grooves 1-4 at both ends of the ring compression electrode ring 3 to prevent the ring compression electrode ring 3 from rotating.

[0025] Before ring compression, the cross-sectional area of the through hole 1-2 on the catheter 1 is relatively large. During manufacturing, when the electrode ring is ring compressed, the overflow material of the catheter 1 during ring compression will fill the limiting groove 1-4 and the through hole 1-2, and the cross-sectional area of the through hole 1-2 becomes smaller, and the electrode ring forms a ring compression electrode ring 3 with the same diameter as the catheter 1.

[0026] Preferably, the limiting protrusions 1-3 and the limiting grooves 1-4 are of a U-shaped structure, and a rectangular or circular structure can also be selected.

[0027] As a specific implementation, it further includes a plug 4 disposed at the end of the catheter 1. Specifically, each component is placed in a tooling with the same outer diameter as the electrode lead, and glue is filled inside and the plug 4 is bonded to the end face or a sealed round head is formed by hot melting to form an integral structure.

[0028] Embodiment 2

[0029] This embodiment provides a specific implementation method based on the electrode lead wire in Embodiment 1. The manufacturing method includes the following steps:

[0030] 1. The electrode lead wire 2 needs to be spot-welded to the ring-pressed electrode ring 3 after ring pressing. Therefore, holes are first drilled in the catheter 1 according to the required positions and quantities.

[0031] 2. The ring-pressed electrode ring 3 is ring-pressed on the drilled catheter 1. After forming, as shown in Figure 1 in the middle, the outer diameter of the ring-pressed electrode ring 3 is the same as the diameter of the catheter. At this time, the ring-pressed electrode ring 3 and the catheter 1 are integrated into one body to form axial positioning. The protruding catheter 1 material (i.e., the limit protrusion 1-3) after ring pressing is stuck into the limit grooves 1-4 at both ends of the ring-pressed electrode ring 3 to prevent the ring-pressed electrode ring 3 from rotating.

[0032] 3. The lead wire 2 is spot-welded inside the formed ring-pressed electrode ring 3 by a spot welder, and the number is N.

[0033] 4. Finally, the assembly is placed in a tooling with the same outer diameter as the electrode, and glue is poured inside and a plug 4 is bonded to the end face or a sealed round head is formed by hot melting to form an integral structure.

[0034] Embodiment 3

[0035] This embodiment provides a specific implementation method of a nerve stimulator based on the electrode lead wire in Embodiment 1. The nerve stimulator includes:

[0036] A machine body provided with a connection interface; and an electrode lead wire, which is the electrode lead wire described in Embodiment 1, and the connector of the electrode lead wire is inserted into the connection interface.

[0037] For the ring-pressed electrode ring of the present utility model, the number of parts is reduced by combining two into one, and the laser welding process for the two parts of the ring-pressed electrode ring is reduced; at the same time, the ring-pressed catheter 1 and the ring-pressed electrode ring 3 are integrated into one body with reliable axial positioning and good consistency of outer diameter dimensions. The overflow material of the catheter 1 after ring pressing is filled into the designed notch of the ring-pressed electrode ring to form circumferential positioning, avoiding the risk of the solder joints of the lead wire 2 falling off due to the rotation of the ring-pressed electrode ring 3.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model is also intended to include these changes and modifications.

Claims

1. An electrode lead wire, characterized in that: It includes a catheter (1), a wire (2) is arranged inside the catheter (1), and a ring compression electrode ring (3) connected to the wire (2) is arranged on the catheter (1); Wherein, a plurality of card slots (1-1) for accommodating the ring compression electrode ring (3) and through holes (1-2) arranged in the card slots (1-1) for allowing the wire (2) to expose and be connected to the ring compression electrode ring (3) are arranged on the catheter (1).

2. The electrode lead according to claim 1, wherein The wire (2) exposes at the position of the through hole (1-2) and is spot-welded to the ring compression electrode ring (3) arranged in the card slot (1-1).

3. The electrode lead according to claim 1 or 2, characterized in that, The catheter (1) is provided with limiting protrusions (1-3) for circumferential positioning of the ring compression electrode ring (3) along its axial direction and on both sides of the card slot (1-1), and limiting grooves (1-4) matching the limiting protrusions (1-3) are arranged on the ring compression electrode ring (3).

4. The electrode lead according to claim 1, characterized in that, The outer diameter of the ring compression electrode ring (3) is the same as the diameter of the catheter (1).

5. The electrode lead according to claim 3, characterized in that, The limiting protrusions (1-3) and the limiting grooves (1-4) are of a U-shaped structure, a rectangular structure or a circular structure.

6. The electrode lead according to claim 1, wherein, It further includes: A plug (4) arranged at the end of the catheter (1).

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

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