Electrode connector
By introducing a single-pole multi-throw switch and shrapnel design into the electrode connector, the adaptation problem between the multi-contact implanted electrode and the less-channel stimulator is solved, and convenient electrode connection is achieved and the convenience of use is improved.
Patent Information
- Application Number
- CN202422315762.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Existing electrode connectors cannot adapt to implanted electrodes with multi-contacts and stimulators with few channels, resulting in inconvenience in use.
An electrode connector is designed, including a first shell, cable and adapter plate. A single-pole multi-throw switch and shrapnel are provided on the adapter plate, which can switch different electrode gears, so that the implanted electrodes of multiple contacts cooperate with the stimulator with few channels, and are electrically connected to the stimulator through a single-pole multi-throw switch.
The adaptation of multi-contact implantable electrode and a few-channel stimulator is achieved, which improves the convenience of use of the product, has a simple structure, and is easy to produce and use.
Smart Images
Figure CN223181516U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical devices, in particular to an electrode connector. Background Art
[0002] During percutaneous peripheral nerve stimulation, an electrode connector is required to connect the implanted electrode to the stimulator. In the current conventional design, the stimulator often has multiple channels, and each channel corresponds to a contact of the electrode one by one. A stimulator with fewer channels (such as a dual-channel stimulator) cannot be adapted to an electrode with multiple contacts (such as a four-contact electrode). It is not so convenient to use.
[0003] Therefore, it is necessary to provide an electrode connector that can cooperate a multi-contact implanted electrode with a few-channel stimulator, so that the implanted electrodes with different contacts can be adapted to the same stimulator, improving the convenience of using the product. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide an electrode connector that can cooperate a multi-contact electrode with a few-channel stimulator, so that the implanted electrodes with different contacts can be adapted to the same stimulator, improving the convenience of using the product.
[0005] To solve the above technical problem, the utility model provides an electrode connector, which includes a first housing, a cable, and a transfer board. The first housing includes a first connection part and a second connection part. An electrode slot is provided on the first connection part, and the electrode slot is used to place the proximal end of the implanted electrode. The proximal end of the implanted electrode includes a plurality of connection rings. A single-pole multi-throw switch and a spring piece are provided on the transfer board. The transfer board is installed on the second connection part. The spring piece is arranged on the side of the transfer board and located in the electrode slot. The spring piece can contact the connection ring of the proximal end of the implanted electrode placed in the electrode slot. The spring piece is electrically connected to the input end of the single-pole multi-throw switch. One end of the cable is electrically connected to the output end of the single-pole multi-throw switch, and the other end of the cable is used to be electrically connected to the stimulator.
[0006] Further, positioning posts and first mounting holes are provided on the second connection part. Positioning holes and second mounting holes are provided at corresponding positions of the transfer board. The positioning holes are sleeved on the positioning posts, and screws pass through the first mounting holes and the second mounting holes to install the transfer board on the second connection part.
[0007] Further, a plurality of limiting members protruding towards the top surface are arranged at intervals on opposite sides of the electrode slot. When the implanted electrode is placed in the electrode slot, the connection ring and the spring piece are both located in the interval between the axially adjacent limiting members.
[0008] Further, it includes a second housing and a hinge. The second housing is pivotally connected to the first housing through the hinge. A buckle and a pressing block are provided on the second housing. The buckle is disposed on the edge of the second housing. A card slot is provided on the side of the first connecting portion. The buckle is engaged with the card slot of the second connecting portion. The pressing block is used to fix the implantable electrode placed in the electrode slot. The number of the pressing blocks is the same as that of the elastic pieces. When the second housing covers the first connecting portion, each pressing block is embedded between two adjacent limiting members.
[0009] Further, a wire groove is provided on the first connecting portion for a cable to pass through.
[0010] Further, connection holes are provided on the adapter board, and the cable is electrically connected to the connection holes.
[0011] Further, it further includes a third housing. An adjustment hole is provided on the third housing. The third housing covers the first connecting portion, and the position of the adjustment hole corresponds to that of the single-pole multi-throw switch.
[0012] Further, indication marks are provided around the adjustment hole.
[0013] Further, the third housing matches the first connecting portion, and the edge of the third housing is bonded to the first connecting portion.
[0014] Further, the number of stimulation channels of the stimulator is 1 or 2. The number of the single-pole multi-throw switches is the same as that of the stimulation channels. The number of stimulation electrodes of the implantable electrode is 2, 4, 6, 8 or 16. The number of the elastic pieces and the number of throws of the single-pole multi-throw switch are both the same as that of the stimulation electrodes.
[0015] The utility model has the following beneficial effects compared with the prior art: The electrode connector provided by the utility model can be used for switching different electrode gears by arranging a single-pole multi-throw switch on the adapter board, and select the corresponding stimulation electrode to be connected to the stimulator for stimulation work. In this way, the multi-contact implantable electrode can cooperate with the stimulator with fewer channels, so that the implantable electrodes with different contacts (stimulation electrodes) can be adapted to the same stimulator, improving the use convenience of the product, and having a simple structure, which is convenient for production, assembly and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the electrode connector in the embodiment of the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the electrode connector in the embodiment of the utility model after removing the third housing;
[0018] Figure 3a, Figure 3b respectively are Figure 2 the top view schematic diagram and the front view schematic diagram after removing the adapter board in
[0019] Figure 4 the structural schematic diagram of the third housing in the embodiment of the present utility model;
[0020] Figure 5 the structural schematic diagram of the adapter board in the embodiment of the present utility model;
[0021] Figure 6a the schematic diagram of the adapter board connecting the cable; Figure 6b is Figure 6a the schematic diagram after installing the first housing and the second housing on the basis of Figure 6c the schematic diagram after installing the third housing;
[0022] Figure 7 the structural schematic diagram of the implanted electrode;
[0023] Figure 8a the schematic diagram after the electrode connector installs the implanted electrode; Figure 8b is Figure 8a the schematic diagram after covering the second housing in Figure 8c is Figure 8b the front view of
[0024] Figure 9 the structural schematic diagram of the peripheral nerve stimulation system adopting the electrode connector provided by the embodiment of the present utility model.
[0025] In the figure:
[0026] 1 - First housing, 2 - Adapter board, 3 - Cable, 4 - Second housing, 5 - Third housing, 6 - Screw, 7 - Implanted electrode, 8 - Stimulator, 10 - Electrode connector, 11 - First connection part, 12 - Second connection part, 111 - Electrode groove, 112 - Limiting part, 113 - Card slot, 121 - First mounting hole, 122 - Positioning post, 123 - Wire groove, 13 - Hinge, 21 - Single - pole multi - throw switch, 22 - Second mounting hole, 23 - Connection hole, 24 - Positioning hole, 25 - Elastic piece, 41 - Snap - fastener, 42 - Pressing block, 51 - Adjusting hole, 52 - Indication mark, 71 - Stimulating electrode, 72 - Connection ring, 73, 74 - Insulating ring. Specific embodiments
[0027] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0028] Please refer to Figure 1 and Figure 2, the electrode connector 10 provided in this embodiment includes a first housing 1, a cable 3, and an adapter board 2. The first housing 1 includes a first connection portion 11 and a second connection portion 12 that are integrally connected. An electrode groove 111 is provided on the first connection portion 11, and the electrode groove 111 is used for placing Figure 7 the proximal end of the implantable electrode 7 shown. The distal end of the implantable electrode 7 includes a plurality of stimulating electrodes 71. The proximal end of the implantable electrode 7 includes a plurality of connection rings 72. The number of connection rings 72 is the same as the number of stimulating electrodes 71, and they are electrically connected in one-to-one correspondence through electrode wires. Both the stimulating electrodes 71 and the connection rings 72 are made of conductive materials. An insulating ring 74 is provided between adjacent two stimulating electrodes 71, and an insulating ring 73 is provided between adjacent two connection rings 72. The stimulating electrodes 71 at the distal end of the implantable electrode 7 can be inserted percutaneously into the patient's body, and the connection rings 72 at the proximal end of the implantable electrode 7 are located outside the body and are electrically connected to the electrode connector 10 provided in this embodiment; also refer to Figure 5 , a single-pole multi-throw switch 21 and a spring piece 25 are provided on the adapter board 2. The single-pole multi-throw switch 21 is used for switching different electrode positions, so that one of the stimulating electrodes 71 is connected to the stimulator 8 for stimulation work; the adapter board 2 is installed on the second connection portion 12. The spring piece 25 is provided on the side of the adapter board 2 and is located in the electrode groove 111. The spring piece 25 can contact the connection rings 72 at the proximal end of the implantable electrode 7 placed in the electrode groove 111 to form an electrical connection. The spring piece 25 and the input end of the single-pole multi-throw switch 21 are electrically connected; one end of the cable 3 is electrically connected to the output end of the single-pole multi-throw switch 21, and the other end of the cable 3 is used for electrically connecting to the stimulator 8, as Figure 9 shown. The stimulator 8 is used for sending electrical stimulation pulses. The electrical stimulation pulses sent by the stimulator 8 are transmitted to the implantable electrode 7 through the cable 3 and the electrode connector 10 provided by the present invention, and the stimulating electrodes 71 are controlled to stimulate the peripheral nerves for treatment.
[0029] In a specific embodiment, please refer to Figure 3a and Figure 3b , a positioning post 122 and a first mounting hole 121 are provided on the second connection portion 12. Also refer to Figure 5 , positioning holes 24 and second mounting holes 22 are provided at the corresponding positions of the adapter board 2. As Figure 6b shown, the positioning holes 24 are sleeved on the positioning posts 122, and screws 6 pass through the first mounting holes 121 and the second mounting holes 22 to mount the adapter board 2 on the second connection portion 12. A connection hole 23 is provided on the adapter board 2, and the cable 3 is connected to the connection hole 23. A wire groove 123 is provided at the tail of the second connection portion 12 for the cable 3 to pass through. A groove 26 is also correspondingly provided at the tail of the adapter board 2. A wire sleeve is provided on the cable 3 for fixing the position of the wire in the electrode connector 10.
[0030] Please continue to refer to Figure 2, the electrode groove 111 on the first connection part 11 is a semi-circular groove. A plurality of limiting parts 112 protruding towards the top surface are arranged at intervals on the opposite sides of the electrode groove 111, so that the implanted electrode 7 can be placed in the electrode groove 111 in a limited way. The limiting parts 112 that limit the proximal end of the implanted electrode 7 form a U-shaped structure to hold the proximal end of the implanted electrode 7. The connection ring 72 of the implanted electrode 7 placed in the electrode groove 111 and the elastic piece 25 on the adapter plate 2 are both located at the interval between two adjacent limiting parts 112 in the axial direction. The elastic piece 25 is placed at the bottom of the electrode groove 111, and the proximal end of the implanted electrode 7 is pressed above the elastic piece 25. "Axial direction" refers to the direction of the central axis after the implanted electrode 7 is installed.
[0031] Please refer to Figure 1 , the electrode connector 10 provided in this embodiment further includes a second housing 4 and a hinge 13. The second housing 4 is connected to the first housing 1 in an openable and closable manner through the hinge 13. A buckle 41 and a pressing block 42 are arranged on the second housing 4. The buckle 41 is arranged on the edge of the second housing 4. The buckle 41 can be Figure 2 the protruding block shown in the figure and the end of the protruding block has a hook. A clamping groove 113 is arranged on the side of the first connection part 11. The buckle 41 is clamped with the clamping groove 113 of the first connection part 11. The hinge 13 is arranged on the left side of the first connection part 11, that is, on the side away from the second connection part 12. After closing, the second housing 4 covers the first connection part 11. The pressing block 42 can press on the implanted electrode 7 in the electrode groove 111, which is used to fix the implanted electrode 7 placed in the electrode groove 111 and press the connection ring 72 of the implanted electrode 7 towards the elastic piece 25, so that the connection ring 72 and the elastic piece 25 are in stable contact and electrical connection. Preferably, the number and position of the pressing blocks 42 correspond to the number and position of the elastic pieces 25. When the second housing 4 is covered on the first connection part 11, each pressing block 42 just fits into the interval between two adjacent limiting parts 112.
[0032] Please refer to Figure 1 and Figure 4 , the electrode connector 10 provided in this embodiment further includes a third housing 5. The third housing 5 matches the first connection part 11. The materials of the first housing 1, the second housing 4, and the third housing 5 can all be plastics. The edge of the third housing 5 can be bonded to the first connection part 11 with glue or connected by ultrasonic welding or other methods. An adjustment hole 51 is arranged on the third housing 5, which is used to adjust the single-pole multi-throw switch 21 of the adapter plate 2. The third housing 5 covers the second connection part 12, and the position of the adjustment hole 51 corresponds to that of the single-pole multi-throw switch 21. During use, tools such as a screwdriver can be used to perform adjustment operations on the single-pole multi-throw switch 21. Further, an indication mark 52 is arranged around the adjustment hole 51, which is used to indicate the current gear of the electrode conduction. For example, Figure 1 as shown in the figure, the numbers 1, 2, 3, and 4 are used to represent the connection with different stimulating electrodes 71 respectively. When the arrow turns to this number, it means connecting to the stimulating electrode 71 corresponding to it.
[0033] Furthermore, the number of stimulation channels of the stimulator 8 is one or two, and the number of the single-pole multi-throw switches 21 is the same as the number of stimulation channels of the stimulator 8. The number of the stimulation electrodes 71 and the connection rings 72 of the implantable electrode 7 is n (n is a positive integer greater than 1), n is preferably 2, 4, 6, 8 or 16, and the number of the shrapnel 25 and the number of throws of the single-pole multi-throw switch 21 are both n. For example Figure 7 as shown, the implantable electrode 7 includes four stimulation electrodes 71 and their corresponding connection rings 72. The number of stimulation channels of the stimulator 8 is two, and the number of the single-pole multi-throw switches 21 is also two. The two stimulator channels are respectively connected to the output ends of the two single-pole multi-throw switches 21 through the cable 3. The number of throws of the single-pole multi-throw switch 21 is four, which is a single-pole four-throw switch, and is electrically connected to the four connection rings 72 through four shrapnel 25 respectively. Therefore, the single-pole multi-throw switch 21 can control the connection between the stimulation channel and any one of the stimulation electrodes 71.
[0034] During the specific use process, first, as Figure 6a shown, the adapter board 2 is welded to the cable 3, specifically, the end of the cable 3 is welded in the connection hole 23. Then, as Figure 6b shown, the adapter board 2 and the second connection part 12 are fixed by screws 6. Specifically, positioning is performed by sleeving the positioning hole 24 on the positioning post 122, and then the screw 6 passes through the first mounting hole 121 and the second mounting hole 22 for fixed installation. Next, as Figure 6c shown, the fourth housing 5 and the first housing 1 are fixed by means of gluing or the like. After the fourth housing 5 is connected, Figure 6c as shown, the connector is in a non-connected state. At this time, the implantable electrode 7 is not inserted. Figure 7Shown is the stimulating electrode 71. The diameter of the implantable electrode 7 adapted to the electrode connector 10 is about 1.0 mm. The proximal end of the implantable electrode 7 is inserted into the electrode connector 10, and the proximal end face is fitted with the electrode groove 111 of the first connecting portion 11. At this time, the positions of the proximal connecting rings 72 exactly correspond to the positions of the elastic pieces 25 on the adapter plate 2. Bend the hinge 13 of the first connecting portion 11, and snap the second housing 4 onto the first connecting portion 11. After snapping, the buckle 41 and the card slot 113 are tightly fixed. At this time, the pressing block 42 on the second housing 4 presses the connecting ring 72 at the proximal end of the implantable electrode 7 towards the elastic piece 25, so that the elastic piece 25 and the connecting ring 72 are reliably connected. The circuit on the adapter plate 2 can lead the four contacts of the connecting ring 72 to the input ends of the two single-pole multi-throw switches 21 respectively, and the connection holes 23 respectively correspond to the output ends of the single-pole multi-throw switches 21. At this time, by rotating the single-pole multi-throw switches 21, the paths of the cable connection holes 23 are respectively connected to different stimulating electrode 71 contacts, realizing the function of stimulating different electrode contacts. At this time, it should be noted that the two single-pole multi-throw switches 21 cannot be turned to the same gear, otherwise, there will be a short circuit, and it should be stated in the relevant instructions or protected in the stimulator circuit.
[0035] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be defined by the claims.
Claims
1. An electrode connector, characterized in that, Comprising a first housing, a cable, and a transfer board, The first housing includes a first connection portion and a second connection portion. An electrode groove is provided on the first connection portion, and the electrode groove is used to place the proximal end of the implantable electrode. The proximal end of the implantable electrode includes a plurality of connection rings; A single-pole multi-throw switch and a shrapnel are provided on the transfer board. The transfer board is installed on the second connection portion. The shrapnel is arranged on the side of the transfer board and is located within the electrode groove. The shrapnel can contact the connection rings of the proximal end of the implantable electrode placed in the electrode groove, and the shrapnel is electrically connected to the input end of the single-pole multi-throw switch; One end of the cable is electrically connected to the output end of the single-pole multi-throw switch, and the other end of the cable is used to be electrically connected to a stimulator.
2. The electrode connector according to claim 1, wherein A positioning post and a first mounting hole are provided on the second connection portion. Corresponding positioning holes and second mounting holes are provided on the transfer board. The positioning holes are sleeved on the positioning posts, and screws pass through the first mounting hole and the second mounting hole to mount the transfer board on the second connection portion.
3. The electrode connector according to claim 1, characterized in that, A plurality of limiting members protruding towards the top surface are spaced apart on opposite sides of the electrode groove. When the implantable electrode is placed in the electrode groove, the connection rings and the shrapnel are both located in the space between the axially adjacent limiting members.
4. The electrode connector according to claim 3, wherein Comprising a second housing and a hinge, the second housing is pivotally connected to the first housing through the hinge. A buckle and a pressing block are provided on the second housing. The buckle is arranged on the edge of the second housing, and a card slot is provided on the side of the first connection portion. The buckle is engaged with the card slot of the second connection portion. The pressing block is used to fix the implantable electrode placed in the electrode groove. The number of pressing blocks is the same as the number of shrapnels. When the second housing covers the first connection portion, each pressing block is embedded between two adjacent limiting members.
5. The electrode connector according to claim 1, wherein A wire groove is provided on the first connection portion for the cable to pass through.
6. The electrode connector according to claim 1, characterized in that, Connection holes are provided on the transfer board, and the cable is electrically connected to the connection holes.
7. The electrode connector according to claim 1, characterized in that, It further includes a third housing. An adjustment hole is provided on the third housing. The third housing covers the first connection portion, and the adjustment hole corresponds to the position of the single-pole multi-throw switch.
8. The electrode connector according to claim 7, wherein Indicator marks are provided around the adjustment hole.
9. The electrode connector according to claim 7, characterized in that, The third housing matches the first connection portion, and the edge of the third housing is bonded to the first connection portion.
10. The electrode connector according to claim 1, characterized in that, The number of stimulation channels of the stimulator is 1 or 2. The number of single-pole multi-throw switches is the same as the number of stimulation channels. The number of stimulation electrodes of the implantable electrode is 2, 4, 6, 8, or 16. The number of shrapnels and the number of throws of the single-pole multi-throw switch are both the same as the number of stimulation electrodes.