An electrode connection device

Abstract

This utility model relates to an electrode connection device, belonging to the field of medical device technology. It includes: a lower shell with a receiving cavity; an upper shell rotatably connected to the lower shell; and an electrode connection assembly comprising a base and multiple electrodes disposed on the base. The base is disposed within the receiving cavity and has a first guide groove and a second guide groove, which are differentiated structures. The two ends of the electrodes are respectively disposed within the first and second guide grooves. When the upper shell is placed on top of the lower shell, the upper shell can contact the electrode surface. Through the rotation of the upper shell relative to the lower shell, two states are formed on the outer surface of the electrodes: clamping and loosening, thereby realizing the conduction and disconnection of the electrodes. This utility model, through a rotary snap-fit ​​assembly structure and a progressive elastic contact design, achieves rapid electrode assembly and disassembly, stable conduction, and overvoltage protection, featuring convenient operation and high contact reliability.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and specifically relates to an electrode connection device. Background Technology

[0002] Deep brain stimulation (DBS) is a minimally invasive neurosurgical procedure widely used to treat Parkinson's disease, essential tremor, dystonia, and other movement disorders. This technique involves implanting stimulating electrodes in specific target areas of the brain and using high-frequency electrical pulses to modulate abnormally excited neural nuclei, thereby alleviating clinical symptoms. A DBS system typically includes an implanted pulse generator, stimulating electrodes, and an external control device. The pulse generator produces electrical pulses, which are transmitted to the predetermined brain region via wires connected to the electrodes, thus modulating neural function.

[0003] During DBS surgery, test stimulation is typically required to ensure the stimulating electrodes accurately reach the predetermined target points and to assess their stimulation effect intraoperatively. The specific procedure is as follows: First, the surgeon uses a three-dimensional stereotactic device to determine the target location within the patient's brain and drills holes in the corresponding skull. Then, the electrodes are precisely implanted into the target locations through the bone holes. Next, the implanted electrodes are connected to the test stimulator via an electrode connection device, outputting test pulses to verify the electrode's positioning and stimulation effect. At this point, higher requirements are placed on the reliability of the connection between the electrode connection device and the electrodes or extension leads to ensure the stability and accuracy of signal transmission throughout the testing period.

[0004] Utility model patent application CN119209058A discloses an electrode wire connection device. The device includes interconnected cables and connectors. The connector is used to connect the electrode wires and has a housing, multiple conductive springs, and spring slots. The conductive springs are arranged at intervals along the electrode channel and pass through the spring slots. A switch assembly is mounted on the housing, with one end extending into the receiving cavity and connected to the conductive springs. The switch assembly can drive the conductive springs to enter and exit the electrode channel through the connection between the spring slots and the electrode channel, thereby freely controlling the connection and disconnection between the electrode wires and the conductive springs.

[0005] Utility model patent CN219959514U discloses a cable connector, including an inner shell, a bottom cover, and a screw cap. The inner shell has a first end and a second end. The first end of the inner shell is provided with a first wire hole for a cable to pass through. The second end of the inner shell can be connected to an electrode. The bottom cover is sleeved on the first end of the inner shell, and the outer wall of the inner shell and the inner wall of the bottom cover are provided with matching first snap-fit ​​structures. The inner shell is also provided with a second snap-fit ​​structure. The inner shell and the bottom cover are connected by the first snap-fit ​​structure and the second snap-fit ​​structure. The screw cap is sleeved on the second end of the inner shell, and the inner shell and the screw cap are connected by a third snap-fit ​​structure.

[0006] However, the electrode connection device disclosed in the above-mentioned patent application does not have the ability to be used in both states of the electrode. This may lead to the need to reinstall the stent after the stent is removed due to surgical error, which prolongs the operation time. Moreover, when the electrodes are in single-point contact with each other, it is difficult to ensure the integrity of the electrodes when they are in stable contact with each other. It cannot ensure the stable connection between the electrodes while protecting the electrodes from damage. Utility Model Content

[0007] To address the existing technical problems, this utility model provides an electrode connection device. By setting a differentiated structure between the first guide groove and the second guide groove, it ensures that if the doctor accidentally removes the electrode support during surgery, the surgery can be resumed without interrupting the procedure.

[0008] An electrode connection device, comprising:

[0009] The lower shell has a receiving cavity;

[0010] The upper shell is detachably connected to the lower shell, and both sides of the upper shell can be rotated upward relative to the lower shell to open.

[0011] An electrode connection assembly includes a base and electrodes disposed on the base. The base is disposed within a receiving cavity and has a circuit board. The base has a first guide groove and a second guide groove for accommodating the electrodes. The first and second guide grooves contain metal sheets that can communicate with the circuit board. The second guide groove is used to fix the electrodes with electrode supports. The first and second guide grooves are located on opposite sides of the base.

[0012] When the upper shell opens upward relative to the lower shell, the first guide groove and / or the second guide groove are exposed; when the upper shell covers the lower shell, the upper shell can apply force to the electrodes located in the first guide groove and / or the second guide groove; through the rotation of the upper shell relative to the lower shell, the electrodes are clamped or released by the metal sheet, thereby realizing the conduction and disconnection of the electrodes.

[0013] By setting a differentiated structure between the first guide groove and the second guide groove (the electrode support is only installed in the second guide groove), it is ensured that if the doctor accidentally removes the electrode support during the operation, the operation can be stopped and the support can be reinstalled without interrupting the operation. The opening and closing of the upper shell enables the clamping and release of the electrode, reducing the difficulty of electrode installation and ensuring stable electrode connection.

[0014] Furthermore, the upper shell includes two rotating parts and a fixed part sandwiched between the two rotating parts. Both rotating parts are rotatably connected to the fixed part via a pivot or hinge, so that the two rotating parts can rotate upward relative to the lower shell and open. The two rotating parts and the lower shell are detachably connected through the cooperation of slots and buckles.

[0015] Furthermore, the inner wall of the rotating part is provided with a rib. When the upper shell covers the lower shell, the rib can abut against the electrode located in the first guide groove and / or the second guide groove to apply force to the electrode located in the first guide groove and / or the second guide groove, so as to realize that the electrode touches the metal sheet.

[0016] Furthermore, the base is provided with multiple mounting slots, each of which connects the first guide groove and the second guide groove. The metal sheet is located within the mounting slot, with both ends of the metal sheet respectively positioned within the first guide groove and the second guide groove. The mounting slots connect the first and second guide grooves, allowing for the assembly of metal within both grooves with a single metal sheet. This reduces the number of metal sheets used and facilitates assembly.

[0017] Furthermore, the two ends of the metal sheet are V-shaped, forming V-shaped contact portions that contact the electrodes. The V-shaped structure ensures a stable connection between the electrode and the metal sheet. In addition, the V-shaped contact portions are elastic, ensuring that the electrode deforms under the progressive clamping force of the upper shell, thus protecting the electrode. The electrode contacts utilize dynamic compensation with V-shaped contact portions, increasing the contact area between the electrode and the metal sheet while simultaneously addressing the issue of electrode fragility.

[0018] Furthermore, the circuit board is disposed on the lower surface of the base, and the circuit board has conductive solder points corresponding to the positions of the metal sheet. The position and number of conductive solder points can be adjusted as needed to ensure a reliable connection between the metal sheet and the circuit board.

[0019] Furthermore, the circuit board has a power connection port at the bottom, which can be connected to an external power source.

[0020] Furthermore, the lower housing is provided with a clearance hole adapted to the position of the power connection port. Power can be connected without removing the circuit board.

[0021] The beneficial effects of this utility model are as follows: This application is an electrode connection device. By setting a differentiated structure of the first guide groove and the second guide groove, it ensures that if the doctor accidentally removes the electrode support during the operation, the operation can be stopped and the support can be reinstalled without interrupting the operation. The V-shaped contact part of the electrode forms a pre-tight contact with the electrode. When the upper shell applies a progressive clamping force, the V-shaped contact part produces a controllable deformation to ensure a reliable connection between the electrode and the metal sheet while protecting the electrode from damage. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the electrode connection device according to an embodiment of the present invention;

[0023] Figure 2 This is an exploded view of the electrode connection device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the electrode connection device according to an embodiment of the present invention when the electrode is in the disconnected state.

[0025] Figure 4 This is a cross-sectional view of the electrode connection device according to an embodiment of the present invention when the electrode is in a conductive state;

[0026] Figure 5 This is a schematic diagram of the upper shell of an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the electrode connection assembly according to an embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the connection structure between the circuit board and the base in an embodiment of this utility model;

[0029] Figure 8 This is a schematic diagram of the electrodes in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of an embodiment of the present invention with a support electrode;

[0031] In the diagram: 1 is the upper shell; 1-1 is the rotating part; 1-1-1 is the protruding part; 1-2 is the fixing part; 1-3 is the rib; 1-4 is the rotating shaft; 2 is the electrode connection assembly; 2-1 is the base; 2-1-1 is the first guide groove; 2-1-2 is the second guide groove; 2-1-3 is the mounting groove; 2-2 is the metal sheet; 2-2-1 is the V-shaped contact part; 2-3 is the circuit board; 2-3-1 is the power connection port; 3 is the lower shell; 3-1 is the clearance hole; 3-2 is the buckle; 5 is the electrode; 5-1 is the electrode contact; 6 is the electrode support. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0033] This utility model provides an electrode fixing device, such as... Figures 1 to 9 As shown, the assembly includes an upper shell 1, an electrode connection assembly 2, and a lower shell 3 stacked sequentially. The electrode connection assembly 2 includes a base 2-1 and electrodes 5 disposed on the base 2-1. The base 2-1 has the following structure: Figure 6 , Figure 7 As shown, the base 2-1 is disposed within the receiving cavity. A circuit board 2-3 is mounted on the base 2-1. The base 2-1 has a first guide groove 2-1-1 and a second guide groove 2-1-2 for accommodating the electrode 5. Metal sheets 2-2 that communicate with the circuit board 2-3 are disposed within the first guide groove 2-1-1 and the second guide groove 2-1-2. The second guide groove 2-1-2 is used to fix the electrode with the electrode support 6. The first guide groove 2-1-1 and the second guide groove 2-1-2 respectively... The base 2-1 has two sides; when the upper shell 1 is opened upward relative to the lower shell 3, the first guide groove 2-1-1 and / or the second guide groove 2-1-2 can be exposed; when the upper shell 1 is placed on the lower shell 3, the upper shell 1 can apply force to the electrode 5 located in the first guide groove 2-1-1 and the second guide groove 2-1-2; through the rotation of the upper shell 1 relative to the lower shell 3, the electrode 5 is clamped or released by the metal sheet 2-2, thereby realizing the conduction and disconnection of the electrode 5.

[0034] like Figure 3 , Figure 4 and Figure 5 As shown, the upper shell 1 includes two rotating parts 1-1 and one fixed part 1-2. The rotating parts 1-1 and the two rotating parts 1-1 are rotatably connected to the fixed part 1-2 through a rotating shaft 1-4, so that the two rotating parts 1-1 can rotate upward relative to the lower shell 3 and open. The two rotating parts 1-1 and the lower shell 3 are detachably connected through the cooperation of the slot and the buckle 3-2.

[0035] The fixing part 1-2 is fixed to the lower shell 3 by screws or other fastening methods. The outer side of the rotating part 1-1 has a protrusion 1-1-1, and the inner side of the protrusion 1-1-1 has a slot. The lower shell 3 has a buckle 3-2. When the rotating part 1-1 covers the lower shell 3, the buckle 3-2 cooperates with the slot to form a reliable connection. The bottom of the circuit board 2-3 has a power connection port 2-3-1, and the lower shell 3 has a clearance hole 3-1 adapted to the position of the power connection port 2-3-1.

[0036] If the electrode holder 6 is not removed, the electrode 5 with the electrode holder 6 is inserted into the first guide groove 2-1-1. If the doctor accidentally removes the electrode holder 6, the electrode without the electrode holder 6 is inserted into the second guide groove 2-1-2.

[0037] Figure 3 As shown, the inner wall of the rotating part 1-1 is provided with a rib 1-3. When the upper shell 1 covers the lower shell 3, the rib 1-3 can abut against the electrode 5 located in the first guide groove 2-1-1 and the second guide groove 2-1-2 to apply force to the electrode 5 located in the first guide groove 2-1-1 and the second guide groove 2-1-2, so that the electrode 5 touches the metal sheet 2-2.

[0038] like Figure 4 When the electrode connection device shown is in the conductive state, after the electrode 5 is inserted into the first guide groove 2-1-1 or the second guide groove 2-1-2 according to the surgical requirements, it flips down to engage the rotating part 1-1. The rib 1-3 of the rotating part 1-1 makes contact with the outer surface of the electrode support 6 or the outer surface of the electrode 5, and drives the electrode 5 to move towards the electrode contact 5-1 to form a gradual clamping force, thereby achieving conductivity.

[0039] The base 2-1 is also provided with a plurality of mounting slots 2-1-3, each mounting slot 2-1-3 connecting the first guide groove 2-1-1 and the second guide groove 2-1-2. The two ends of the metal sheet 2-2 are V-shaped, forming V-shaped contact portions 2-2-1 that contact the electrode 5. The metal sheet 2-2 is located in the mounting slot, and two V-shaped contact portions 2-2-1 are respectively disposed in the first guide groove 2-1-1 and the second guide groove 2-1-2. The mounting slots 2-1-3 connect the first guide groove 2-1-1 and the second guide groove 2-1-2, and one metal sheet 2-2 can realize the assembly of metal materials in the first guide groove 2-1-1 and the second guide groove 2-1-2. This reduces the number of metal sheets 2-2 used and facilitates the assembly of the metal sheets 2-2. The V-shaped structure ensures a stable connection between electrode 5 and the metal sheet. Furthermore, the V-shaped contact portion 2-2-1 is elastic, ensuring that electrode 5 deforms under the progressive clamping force from the upper shell, thus protecting electrode 5. The electrode contact 5-1 utilizes the V-shaped contact portion 2-2-1 for dynamic compensation, increasing the contact area between electrode 5 and the metal sheet while simultaneously addressing the issue of electrode 5's vulnerability.

[0040] The circuit board 2-3 is fixed to the bottom surface of the base 2-1 by screws or other fastening methods. The circuit board 2-3 is provided with conductive solder joints corresponding to the positions of each electrode 5.

[0041] like Figure 8 , Figure 9 As shown, electrode 5 has electrode contacts 5-1 on its surface.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. An electrode connection device, characterized in that, include: The lower shell has a receiving cavity; The upper shell is detachably connected to the lower shell, and both sides of the upper shell can be rotated upward relative to the lower shell to open. An electrode connection assembly includes a base and electrodes disposed on the base. The base is disposed within a receiving cavity and has a circuit board. The base has a first guide groove and a second guide groove for accommodating the electrodes. The first and second guide grooves contain metal sheets that can communicate with the circuit board. The second guide groove is used to fix the electrodes with electrode supports. The first and second guide grooves are located on opposite sides of the base. When the upper shell opens upward relative to the lower shell, the first guide groove and / or the second guide groove are exposed; when the upper shell covers the lower shell, the upper shell can apply force to the electrodes located in the first guide groove and / or the second guide groove; through the rotation of the upper shell relative to the lower shell, the electrodes are clamped or released by the metal sheet, thereby realizing the conduction and disconnection of the electrodes.

2. The electrode connection device according to claim 1, characterized in that, The upper shell includes two rotating parts and a fixed part sandwiched between the two rotating parts. The two rotating parts are rotatably connected to the fixed part through a pivot or hinge, so that the two rotating parts can rotate upward relative to the lower shell and open. The two rotating parts and the lower shell are detachably connected through the cooperation of slots and buckles.

3. The electrode connection device according to claim 2, characterized in that, The inner wall of the rotating part is provided with a rib. When the upper shell covers the lower shell, the rib can abut against the electrode located in the first guide groove and / or the second guide groove to apply force to the electrode located in the first guide groove and / or the second guide groove, so as to realize that the electrode touches the metal sheet.

4. The electrode connection device according to claim 2, characterized in that, The base is also provided with a plurality of mounting slots, each of which connects the first guide slot and the second guide slot. The metal sheet is located in the mounting slot, and the two ends of the metal sheet are respectively disposed in the first guide slot and the second guide slot.

5. The electrode connection device according to claim 3, characterized in that, The two ends of the metal sheet are V-shaped, forming a V-shaped contact portion that contacts the electrode.

6. The electrode connection device according to claim 3, characterized in that, The circuit board is disposed on the lower surface of the base, and the circuit board is provided with conductive solder points corresponding to the positions of the metal sheet.

7. The electrode connection device according to claim 2, characterized in that, The circuit board has a power connection port at the bottom.

8. The electrode connection device according to claim 7, characterized in that, The lower shell is provided with a clearance hole adapted to the position of the power connection port.

Images