An implantable spinal cord stimulation electrode connector

Abstract

The utility model relates to an implantable spinal cord stimulation electrode joint belongs to medical instrument technical field, solves the technical problem that the treatment effect is not obvious because of the loose and wearing of electrode connection in prior art, including base, upper cover and connecting interface, the upper cover covers in the base, and the connecting interface sets up in the base, the connecting interface includes electrode container groove, elastic support pad layer, isolation pad layer and clamping electrode, when implantable spinal cord stimulation electrode is pressed into clamping electrode, elastic support pad layer can produce elastic deformation, absorbs the impact force that implantable spinal cord stimulation electrode produced in the process of pressing in, prevents clamping electrode from receiving excessive instantaneous pressure, thereby avoids its permanent deformation, when taking out implantable spinal cord stimulation electrode in clamping electrode, clamping electrode can restore deformation according to the elasticity of elastic support pad layer, thereby protects clamping electrode itself from permanent deformation, simultaneously, can reduce the wearing and mechanical damage of electrode.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an implantable spinal cord stimulation electrode connector. Background Technology

[0002] Implantable spinal cord stimulation electrodes transmit electrical stimulation signals to spinal cord neurons via electrode leads implanted in the patient's spinal cord region. These electrical stimulation signals can alter nerve conduction, thereby achieving the purpose of treating pain and other neurological disorders. By electrically stimulating the spinal cord, it can block or inhibit the transmission of nerve pain signals, while also promoting the regeneration and repair of nerve cells, helping to restore the patient's neurological function.

[0003] In practical use, the insertion end of the implantable spinal cord stimulation electrode is implanted into the human body, and the non-insertion end of the implantable spinal cord stimulation electrode is connected to a special connector. The special connector is then connected to the electrical stimulation generator. In actual application, the non-insertion end of the implantable spinal cord stimulation electrode and the special connector are generally connected by wrapping the electrode. However, loosening and wear can easily occur in the connection between the wrapping electrode and the non-insertion end, which can lead to technical problems such as insignificant treatment effects. Utility Model Content

[0004] Based on the above analysis, the present invention aims to provide an implantable spinal cord stimulation electrode connector to solve the technical problem in the prior art where loosening and wear of the electrode connection lead to insignificant treatment effects.

[0005] The objective of this utility model is mainly achieved through the following technical solutions:

[0006] An implantable spinal cord stimulation electrode connector includes a base, a top cover, and a connection interface, wherein the top cover covers the base and the connection interface is disposed within the base;

[0007] The connection interface includes an electrode reservoir, an elastic support pad, an isolation pad, and a clamping electrode. The electrode reservoir is formed in the base. The elastic support pad is disposed in the electrode reservoir to provide elastic support. The isolation pad is placed on the elastic support pad to achieve electrical isolation. The clamping electrode is used to provide electrical energy to the implanted spinal cord stimulation electrode.

[0008] The clamping electrode includes a conductive wear-resistant layer, an electrode layer, and an adhesive layer. The implantable spinal cord stimulation electrode is connected to the conductive wear-resistant layer, the conductive wear-resistant layer is disposed on the electrode layer, and the electrode layer is fixedly disposed on the isolation pad layer by the adhesive layer.

[0009] Furthermore, the clamping electrode has multiple electrode slots.

[0010] Furthermore, the clamping electrode also includes electrode plates and wires connecting the electrode plates.

[0011] Furthermore, the elastic support pad layer is provided with elastic protrusions to support the electrode sheet.

[0012] Furthermore, the implantable spinal cord stimulation electrode connector also includes a hinge assembly, which includes a hinge shaft and a hinge sleeve. The hinge shaft passes through the hinge sleeve and is rotatable within the hinge sleeve. The hinge shaft is fixedly mounted on the upper cover, and the hinge sleeve is fixedly mounted on the base.

[0013] Furthermore, the implantable spinal cord stimulation electrode connector also includes a sealing assembly, which includes a first sealing ring and a second sealing ring. The first sealing ring is fixedly disposed on the base, and the second sealing ring is fixedly disposed on the upper cover. When the upper cover is closed on the base, the first sealing ring is sealed and fitted with the second sealing ring.

[0014] Furthermore, the upper cover also includes a pressing block, which is fixedly disposed on the upper cover. When the upper cover is closed on the base, the pressing block can press the implanted spinal cord stimulation electrode into the clamping electrode.

[0015] Furthermore, the implantable spinal cord stimulation electrode connector also includes a locking component, which includes a locking slot and a locking block. The locking block is fixedly disposed on the base, and the locking slot is fixedly disposed on the upper cover. When the upper cover is closed on the base, the locking block is engaged in the locking slot.

[0016] Furthermore, the elastic support pad layer includes a first pad layer, an elastic support layer, and a second pad layer. The elastic support layer is disposed between the first pad layer and the second pad layer. The first pad layer is fixedly disposed within the electrode cavity, and the second pad layer is connected to the isolation pad layer.

[0017] Furthermore, the elastic support layer includes a plurality of springs.

[0018] The technical solution of this utility model can achieve at least one of the following effects:

[0019] (1) The implantable spinal cord stimulation electrode connector of this utility model includes a base, a top cover and a connection interface. The top cover is closed on the base and the connection interface is disposed on the base. The connection interface includes an electrode cavity, an elastic support pad, an isolation pad and a clamping electrode. The electrode cavity is opened on the base. The elastic support pad is disposed in the electrode cavity to provide elastic support. The isolation pad is disposed on the elastic support pad to achieve electrical isolation. The clamping electrode includes a conductive wear-resistant layer, an electrode layer and an adhesive layer. When the implantable spinal cord stimulation electrode is pressed into the clamping electrode, the elastic support pad can generate elastic deformation to absorb the impact force generated by the implantable spinal cord stimulation electrode during the pressing process, and prevent the clamping electrode from being subjected to excessive instantaneous pressure, thereby avoiding permanent deformation. When the implantable spinal cord stimulation electrode is removed from the clamping electrode, the clamping electrode can recover its deformation according to the elasticity of the elastic support pad, thereby protecting the clamping electrode itself from permanent deformation. Moreover, the cooperation of the conductive wear-resistant layer, the electrode layer and the adhesive layer can reduce wear and mechanical damage.

[0020] (2) The implantable spinal cord stimulation electrode connector of this utility model has multiple electrode slots on the clamping electrode to enhance the deformation capability of the clamping electrode. The electrode slots enable the clamping electrode to produce a certain elastic deformation when subjected to pressure, thereby adapting to different shapes and sizes of implantable spinal cord stimulation electrodes and improving the applicability of the device.

[0021] (3) The implantable spinal cord stimulation electrode connector of this utility model also includes electrode plates and wires connecting the electrode plates. By connecting multiple electrode plates through wires, the stress generated by the integral electrode can be dispersed, and the connection loosening caused by stress concentration can be avoided.

[0022] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description

[0023] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0024] Figure 1 This is a schematic diagram of the implantable spinal cord stimulation electrode connector in Embodiment 1 of this utility model;

[0025] Figure 2 This is a schematic diagram of the electrode clamping structure in Embodiment 1 of this utility model;

[0026] Figure 3 This is a schematic diagram of the electrode slotting structure in Embodiment 1 of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the electrode sheet and the wire in Embodiment 1 of this utility model;

[0028] Figure 5 This is a schematic diagram of the locking component in Embodiment 1 of this utility model;

[0029] Figure 6 This is a schematic diagram of the elastic support pad layer in Embodiment 2 of this utility model.

[0030] Figure label:

[0031] 1-Base;

[0032] 2-Top cover, 21-Pressing block;

[0033] 3-Connection interface, 31-Electrode groove, 32-Elastic support pad, 320-Elastic protrusion, 321-First pad, 322-Elastic support layer, 323-Second pad, 33-Isolation pad, 34-Clamping electrode, 341-Conductive wear-resistant layer, 342-Electrode layer, 343-Adhesive layer, 344-Electrode slot, 345-Electrode sheet, 346-Wire;

[0034] 4-Hinge assembly, 41-Hinge shaft, 42-Hinge bushing;

[0035] 5-Sealing assembly, 51-First sealing ring, 52-Second sealing ring;

[0036] 6-Locking component, 61-Locking bayonet, 62-Locking block. Detailed Implementation

[0037] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0038] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments.

[0039] Example 1

[0040] like Figure 1 and Figure 2As shown, this embodiment of the present invention provides an implantable spinal cord stimulation electrode connector, including a base 1, a top cover 2, and a connection interface 3. The top cover 2 covers the base 1, and the connection interface 3 is disposed within the base 1. The connection interface 3 includes an electrode receiving groove 31, an elastic support pad 32, an isolation pad 33, and a clamping electrode 34. The electrode receiving groove 31 is formed within the base 1, the elastic support pad 32 is disposed within the electrode receiving groove 31 to provide elastic support, the isolation pad 33 is disposed on the elastic support pad 32 to achieve electrical isolation, and the clamping electrode 34 is fixedly disposed on the isolation pad 33 to provide electrical energy to the implantable spinal cord stimulation electrode. The clamping electrode 34 includes a conductive and wear-resistant layer. 341, electrode layer 342 and adhesive layer 343, the implantable spinal cord stimulation electrode is connected to the conductive wear-resistant layer 341, the conductive wear-resistant layer 341 is disposed on the electrode layer 342, and the electrode layer 342 is fixedly disposed on the isolation pad layer 33 by the adhesive layer 343; in actual use, such as when stimulating the spinal cord or testing the device, the non-insertion end of the implantable spinal cord stimulation electrode is clamped in the clamping electrode 34 to obtain electrical energy (the insertion end of the implantable spinal cord stimulation electrode is used for insertion into the body for treatment). For example, the base 1 and the top cover 2 can both be made of engineering plastic material, the isolation pad layer 33 can be made of polyurethane PU film, and the clamping electrode 34 can be made of copper material.

[0041] The base 1 serves as the foundation of the entire connector, supporting and securing other components. The top cover 2 fits over the base 1, protecting the internal components. The connection interface 3 is located on the base 1 and is used to connect to the implanted spinal cord stimulation electrode. Specifically, the connection interface 3 includes an electrode reservoir 31, an elastic support pad 32, an isolation pad 33, and an electrode clamping 34. The electrode reservoir 31 provides space for the electrode, the isolation pad 33 provides electrical isolation to prevent current leakage and short circuits, and the electrode clamping 34 clamps the non-implantable spinal cord stimulation electrode. The electrode 34 is fed into an electrode cavity 31 to provide electrical energy. An elastic support pad 32 is disposed within the electrode cavity 31 to provide elastic support and ensure the stability of the electrode position. An elastic support pad 32 is also provided at the clamping location to support and hold the electrode 34. The conductive and wear-resistant layer 341 directly contacts the implanted spinal cord stimulation electrode, providing electrical energy transmission while protecting the electrode from wear and mechanical damage. For example, the conductive and wear-resistant layer 341 is made of stainless steel foil or a conductive polymer composite material. The electrode layer 342 is the conductive part, responsible for transmitting electrical energy from the external power source to the conductive and wear-resistant layer 341, and then... The electrode layer 342, made of copper, aluminum, or silver, is fed to the implantable spinal cord stimulation electrode. An adhesive layer 343 secures the electrode layer 342 to the isolation pad layer 33, ensuring tight contact and stable connection between them. The adhesive layer 343 can be made of silicone gel cloth. When the implantable spinal cord stimulation electrode is pressed into the clamping electrode 34, the elastic support pad layer 32 can undergo elastic deformation, absorbing the impact force generated during the pressing process and preventing the clamping electrode 34 from being subjected to excessive instantaneous pressure, thus avoiding permanent deformation. When the implanted spinal cord stimulation electrode is removed from the clamping electrode 34, the clamping electrode 34 can recover its deformation according to the elasticity of the elastic support pad 32, thereby protecting the clamping electrode 34 itself from permanent deformation. At the same time, the cooperation of the conductive wear-resistant layer 341, the electrode layer 342 and the adhesive layer 343 can reduce wear and mechanical damage. Thus, by cooperating to set the elastic support pad 32 and the clamping electrode 34, it is ensured that they will not loosen or shift during use, solving the technical problem in the prior art that the treatment effect is not obvious due to the loosening and wear of the electrode connection.

[0042] A preferred embodiment of this utility model is as follows: Figure 3 As shown, the clamping electrode 34 has multiple electrode slots 344 to enhance its deformation capability. The electrode slots 344 allow the clamping electrode 34 to undergo a certain elastic deformation when subjected to pressure, thereby adapting to different shapes and sizes of implanted spinal cord stimulation electrodes. This adaptability helps ensure that the electrode does not cause excessive stress to the clamping electrode 34 during the insertion process, thus avoiding permanent deformation.

[0043] A preferred embodiment of this utility model is as follows: Figure 4As shown, the clamping electrode 34 also includes electrode pieces 345 and wires 346 connected between the electrode pieces 345. By connecting multiple electrode pieces 345 through wires 346, the stress generated by the integral electrode can be dispersed, and the connection loosening caused by stress concentration can be avoided.

[0044] Based on this, such as Figure 4 As shown, the elastic support pad 32 is provided with elastic protrusions 320 to support the electrode sheet 345. The elastic protrusions 320 can provide additional support force to ensure the stability of the electrode sheet 345.

[0045] A preferred embodiment of this utility model is as follows: Figure 1 As shown, the implantable spinal cord stimulation electrode connector also includes a hinge assembly 4. The hinge assembly 4 includes a hinge shaft 41 and a hinge sleeve 42. The hinge shaft 41 passes through the hinge sleeve 42 and can rotate within the hinge sleeve 42. The hinge shaft 41 is fixedly mounted on the upper cover 2, and the hinge sleeve 42 is fixedly mounted on the base 1. The cooperation between the hinge shaft 41 and the hinge sleeve 42 enables relative rotation between the upper cover 2 and the base 1, so that the upper cover 2 closes on the base 1.

[0046] A preferred embodiment of this utility model is as follows: Figure 1 As shown, the implantable spinal cord stimulation electrode connector also includes a sealing component 5, which includes a first sealing ring 51 and a second sealing ring 52. The first sealing ring 51 is fixedly disposed on the base 1, and the second sealing ring 52 is fixedly disposed on the upper cover 2. When the upper cover 2 is closed on the base 1, the first sealing ring 51 is sealed and fitted with the second sealing ring 52. For example, the first sealing ring 51 is an O-ring and the second sealing ring 52 is a U-ring. Through the cooperation of the first sealing ring 51 and the second sealing ring 52, liquid and gas can be prevented from entering the connector, thereby enhancing the sealing performance of the connector.

[0047] A preferred embodiment of this utility model is as follows: Figure 1 As shown, the upper cover 2 includes a pressing block 21, which is fixedly mounted on the upper cover 2. When the upper cover 2 is closed on the base 1, the pressing block 21 can press the implanted spinal cord stimulation electrode into the clamping electrode 34.

[0048] A preferred embodiment of this utility model is as follows: Figure 5 As shown, the implantable spinal cord stimulation electrode connector also includes a locking component 6, which includes a locking slot 61 and a locking block 62. The locking block 62 is fixedly disposed on the side wall of the base 1, and the locking slot 61 is fixedly disposed on the upper cover 2. When the upper cover 2 is closed on the base 1, the locking block 62 is locked in the locking slot 61. The locking slot 61 and the locking block 62 enable a tight connection between the upper cover 2 and the base 1, preventing accidental opening due to external force or vibration, and ensuring the safety and reliability of the connector during use.

[0049] Example 2

[0050] This embodiment further improves upon Embodiment 1 by modifying the elastic support pad 32, such as... Figure 6 As shown, the elastic support pad 32 also includes a first pad 321, an elastic support layer 322, and a second pad 323. The elastic support layer 322 is disposed between the first pad 321 and the second pad 323. The first pad 321 is fixedly disposed within the electrode reservoir 31, and the second pad 323 is connected to the isolation pad 33. The direct contact portion between the first pad 321 and the electrode reservoir 31 serves to fix and support the elastic support pad 32, stably placing it within the electrode reservoir 31 and providing a stable mounting base for the entire pad structure. The elastic support layer 322 is located between the first pad 321 and the second pad 323. Between the layers 323, an elastic support is provided, which can absorb and buffer mechanical impacts and vibrations from the electrode reservoir 31 or other components. The second pad layer 323 is connected to the isolation pad layer 33, which serves as a transition and connection, connecting and fixing the elastic support pad layer 32 and the isolation pad layer 33. By coordinating the first pad layer 321, the elastic support layer 322 and the second pad layer 323, the stability and reliability of the elastic support pad layer 32 are improved. By absorbing and buffering vibrations, the structural integrity of the clamping electrode 34 is protected, avoiding safety accidents caused by damage to the clamping electrode 34, and improving the safety of the system.

[0051] Based on this, the elastic support layer 322 includes multiple springs; the springs can provide elasticity and support force to ensure the stable position of the clamping electrode 34, so that the clamping electrode 34 can maintain good contact when subjected to pressure, while not causing excessive stress on the clamping electrode 34, thereby avoiding permanent deformation.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An implantable spinal cord stimulation electrode connector, characterized in that, It includes a base, a top cover, and a connection interface, wherein the top cover covers the base and the connection interface is disposed inside the base; The connection interface includes an electrode reservoir, an elastic support pad, an isolation pad, and a clamping electrode. The electrode reservoir is formed in the base. The elastic support pad is disposed in the electrode reservoir to provide elastic support. The isolation pad is placed on the elastic support pad to achieve electrical isolation. The clamping electrode is used to provide electrical energy to the implanted spinal cord stimulation electrode. The clamping electrode includes a conductive wear-resistant layer, an electrode layer, and an adhesive layer. The implantable spinal cord stimulation electrode is connected to the conductive wear-resistant layer, the conductive wear-resistant layer is disposed on the electrode layer, and the electrode layer is fixedly disposed on the isolation pad layer by the adhesive layer.

2. The implantable spinal cord stimulation electrode connector according to claim 1, characterized in that, The clamping electrode has multiple electrode slots.

3. The implantable spinal cord stimulation electrode connector according to claim 1, characterized in that, The clamping electrode also includes electrode plates and wires connecting the electrode plates.

4. The implantable spinal cord stimulation electrode connector according to claim 3, characterized in that, The elastic support pad layer has elastic protrusions to support the electrode sheet.

5. The implantable spinal cord stimulation electrode connector according to claim 1, characterized in that, The implantable spinal cord stimulation electrode connector also includes a hinge assembly, which includes a hinge shaft and a hinge sleeve. The hinge shaft passes through the hinge sleeve and is rotatable within the hinge sleeve. The hinge shaft is fixedly mounted on the upper cover, and the hinge sleeve is fixedly mounted on the base.

6. The implantable spinal cord stimulation electrode connector according to claim 1, characterized in that, The implantable spinal cord stimulation electrode connector also includes a sealing component, which includes a first sealing ring and a second sealing ring. The first sealing ring is fixedly disposed on the base, and the second sealing ring is fixedly disposed on the upper cover. When the upper cover is closed on the base, the first sealing ring is sealed and fitted with the second sealing ring.

7. The implantable spinal cord stimulation electrode connector according to claim 1, characterized in that, The upper cover also includes a pressing block, which is fixedly disposed on the upper cover. When the upper cover is closed on the base, the pressing block can press the implanted spinal cord stimulation electrode into the clamping electrode.

8. The implantable spinal cord stimulation electrode connector according to claim 1, characterized in that, The implantable spinal cord stimulation electrode connector also includes a locking component, which includes a locking slot and a locking block. The locking block is fixedly disposed on the base, and the locking slot is fixedly disposed on the upper cover. When the upper cover is closed on the base, the locking block is engaged in the locking slot.

9. The implantable spinal cord stimulation electrode connector according to claim 1, characterized in that, The elastic support pad layer includes a first pad layer, an elastic support layer, and a second pad layer. The elastic support layer is disposed between the first pad layer and the second pad layer. The first pad layer is fixedly disposed in the electrode cavity, and the second pad layer is connected to the isolation pad layer.

10. The implantable spinal cord stimulation electrode connector according to claim 9, characterized in that, The elastic support layer includes multiple springs.

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