An electrode assembly, a forming device thereof, and a high-frequency ablation electrode using the electrode assembly

Abstract

The application aims to provide an electrode assembly, a forming device thereof, and a high-frequency ablation electrode using the electrode assembly. The forming device comprises a rack, a driving device, and a workbench. The workbench is provided with a lower punching assembly. The driving device is connected with an upper punching assembly. The lower punching assembly comprises a lower guide mechanism connected with the workbench through a pressing assembly. The lower guide mechanism is connected with a lower jig plate. The lower jig plate is provided with a placement accommodating the electrode. Each side of the placement slot is provided with a positioning block. The side of the positioning block close to the placement slot is a slope. The upper punching assembly comprises an upper fixed table connected with an upper guide mechanism through a pressing assembly. The bottom of the upper guide mechanism is connected with the upper jig plate. The upper jig plate is provided with a pressing plate matched with the positioning block. The application can quickly realize the assembly of the electrode and the knife rod. The performance of the electrode assembly after assembly is more stable.

Description

Technical Field

[0001] This invention relates to the field of surgical medical device technology, and in particular to an electrode assembly and a high-frequency ablation electrode. Background Technology

[0002] Existing high-frequency ablation electrodes mainly consist of a blade, a handle, and a connecting cable. With the assistance of high-frequency surgical equipment, doctors use electrosurgical scalpels for surgical procedures, primarily for coagulation or cutting of biological tissues. The blade assembly is one of the key components determining the success of the surgery. Blade assemblies come in various forms and materials, such as one-piece stainless steel structures, tungsten carbide structures, single-material, and hybrid materials. Tungsten alloy blades, when used in surgery, enable minimally invasive, precise, and efficient cutting of the patient's skin and various soft tissues, and also significantly reduce bleeding, demonstrating good application results. However, tungsten carbide is relatively expensive; therefore, electrode assemblies combining tungsten carbide and stainless steel have broad application prospects. However, how to quickly connect the tungsten carbide electrode to the stainless steel handle while ensuring conductivity after connection has become a key research challenge for instrument manufacturers. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an electrode assembly and its forming device, and a high-frequency ablation electrode using the electrode assembly, which can quickly assemble the electrode and the tool holder, and the assembled electrode assembly has more stable performance.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an electrode assembly forming device, comprising a frame, a drive device, and a worktable, wherein a lower stamping assembly is provided on the worktable, the drive device is connected to an upper stamping assembly, the lower stamping assembly includes a lower guide mechanism, the lower guide mechanism is connected to the worktable through a clamping assembly, a lower fixture plate is connected to the lower guide mechanism, the lower fixture plate is provided with an electrode placement slot, and a positioning block is provided on each side of the placement slot, the side of the positioning block closest to the placement slot being an inclined surface; The upper stamping assembly includes an upper fixed platform, which is connected to an upper guide mechanism via a pressing assembly. The bottom of the upper guide mechanism is connected to an upper fixture plate, and the upper fixture plate is provided with a pressure plate that cooperates with the positioning block.

[0005] The angle α between the positioning blocks on both sides of the placement slot is 120°.

[0006] The lower fixture plate is provided with a clearance area perpendicular to the placement slot.

[0007] The clamping assembly includes a T-shaped slider and a support plate. The T-shaped slider cooperates with a slide groove, which is set on the worktable and the upper fixed platform. The end of the T-shaped slider passes through the clamping plate and is connected to the limit bolt. The other end of the clamping plate presses the support plate onto the worktable or the upper fixed platform.

[0008] The lower guide mechanism includes a lower guide platform with a guide column fixed on it, and the upper guide mechanism includes an upper guide platform with a guide cylinder fixed on it, with the guide column cooperating with the guide cylinder.

[0009] An electrode assembly prepared using the above-described molding apparatus is produced according to the following steps: 1) Place the electrode into the tool holder, then into the placement slot of the lower fixture plate. Start the drive device to drive the upper fixture plate downwards, and the pressure plate presses the connection between the electrode and the tool holder. 2) Use a punch press to press the lantern flower assembly onto the other end of the tool holder to obtain the electrode assembly; 3) The pressed product is ultrasonically cleaned and dried; 4) The dried electrode assembly is connected to the conduit and control handle.

[0010] Preferably, the electrode diameter is 7.8 mm and the inner diameter of the tool holder is 8 mm.

[0011] Preferably, the electrode is a tungsten carbide electrode, and the tool holder is a stainless steel tool holder.

[0012] A high-frequency ablation electrode includes a handle, which is provided with an LED switch, an indicator light, a cable, and a plug. The handle is connected to the electrode assembly prepared according to the claims.

[0013] This application utilizes an upper and lower stamping assembly to quickly assemble the electrode and tool holder, resulting in more stable electrode assembly performance. Furthermore, it is applicable to the processing of electrode assemblies of different specifications and shapes, producing stable electrode connections and reliable performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a high-frequency ablation electrode.

[0015] Figure 2 This is a schematic diagram of the molded component.

[0016] Figure 3 This is a top view of the lower pressure plate.

[0017] Figure 4 for Figure 2 Enlarged schematic diagram of region A in the middle.

[0018] Figure 5 for Figure 2 The left view.

[0019] Figure 6 This is a schematic diagram of the clamping component structure.

[0020] Figure 7 This is a schematic diagram of the electrode assembly structure.

[0021] Figure reference numerals: Electrode assembly 1, Electrode 1-1, Tool bar 1-2, Lantern flower assembly 1-3, Handle 2, Control switch 3, Cable 4, Plug 5, LED switch 6, Indicator light 7, Frame 8, Workbench 9, Guide column 10, Lower fixture plate 11, Upper fixture plate 12, Drive device 13, Placement slot 14, Positioning block 15, Alternating zone 16, Pressure plate 17, Guide cylinder 18, Upper fixed platform 19, Pressing assembly 20, T-slider 20-1, Support plate 20-2, Slide groove 20-3, Pressing plate 20-4, Lower guide platform 21, Upper guide platform 22. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 2-7 As shown, an electrode assembly forming apparatus includes a frame 8, a drive unit 13, and a worktable 9. A lower stamping assembly is mounted on the worktable 9, and the drive unit 13 is connected to the upper stamping assembly.

[0024] The lower stamping assembly includes a lower guide mechanism, which is connected to the worktable 9 via a clamping assembly 20. A lower fixture plate 11 is connected to the lower guide mechanism. The lower fixture plate 11 is provided with a placement groove 14 for accommodating electrodes. A positioning block 15 is provided on each side of the placement groove 14. The side of the positioning block 15 closest to the placement groove 14 is an inclined surface. The upper stamping assembly includes an upper fixed platform 19, which is connected to an upper guide mechanism via a pressing assembly 20. The bottom of the upper guide mechanism is connected to an upper fixture plate 12, and a pressure plate 17 that cooperates with a positioning block 15 is provided in the groove at the bottom of the upper fixture plate 12.

[0025] like Figure 3 and 4 As shown, the angle α between the inclined surfaces of the positioning blocks 15 on both sides of the placement groove 14 is 120°. When the upper fixture plate 12 is pressed down, the pressure plate 17 enters between the two positioning blocks 15, pressing the tool bar and the electrode together. This angle α allows the pressure plate 17, positioning blocks 15, and placement groove to clamp the parts to be pressed during the pressing process, resulting in a tighter press. In addition, when processing irregularly shaped electrode assemblies, the irregularly shaped electrodes can be placed in the clearance area to facilitate the pressing operation.

[0026] Preferably, the bottom surface of the pressure plate 17 is higher than the bottom surface of the upper fixture plate 12. The bottom of the upper fixture plate 12 has a groove, and the pressure plate 17 is located within the groove. The bottom surface of the pressure plate 17 is not flush with the groove, but rather positioned within it. During operation, the pressure plate 17 can enter the opposing surface (i.e., the position of angle a) between the two positioning blocks 15. Under the working pressure of the pressure plate 17, the placement groove 14, and the two positioning blocks, the tool bar and electrode 1-1 are pressed together.

[0027] To ensure that the upper and lower stamping assemblies press the pressure plate precisely against the part to be pressed during operation and to guarantee the workpiece dimensions, this application provides a clearance area 16 perpendicular to the placement groove 14 on the lower fixture plate 11. A scale plate is provided on the worktable. During operation, a limiting member is placed in the clearance area 16. Before pressing, the top of the electrode 1-1 is placed against the limiting member, and the tool bar 1-2 is placed on the scale plate (allowing for direct observation of the tool bar length and position). This ensures the accuracy of the workpiece dimensions and pressing position.

[0028] The clamping assembly 20 includes a T-shaped slider 20-1 and a support plate 20-2. The T-shaped slider 20-1 cooperates with a slide groove 20-3, which is set on the worktable 9 and the upper fixed platform 19. The T-shaped slider 20-1 can slide within the slide groove 20-3. One end of the T-shaped slider 20-1 passes through the clamping plate 20-4 and is connected to a limiting bolt. The other end of the clamping plate 20-4 presses the support plate against the worktable 9 or the upper fixed platform 19. This arrangement of the clamping assembly in this application allows the upper and lower stamping assemblies to be replaced at any time, meeting the production needs of different products.

[0029] The lower guide mechanism includes a lower guide platform 21, on which a guide post 10 is fixed. The upper guide mechanism includes an upper guide platform 22, on which a guide cylinder 18 is fixed. The guide post 10 cooperates with the guide cylinder 18. During the stamping process, due to changes in product dimensions or equipment processing and maintenance needs, the pressure plate 17 may need to be replaced. In this application, the upper guide platform 22 is bolted to the upper fixture plate 12, facilitating the removal of the upper fixture plate 12 and replacement of the pressure plate 17.

[0030] The electrode prepared using the above-described forming apparatus is produced according to the following steps: 1) Place electrode 1-1 into tool bar 1-2, then place it into placement slot 14 of lower fixture plate 11. Start drive device 13 to drive upper fixture plate 12 to work downwards. Pressure plate 17 presses down to tighten the connection between electrode 1-1 and tool bar 1-2. 2) Use a punch press to press the lantern flower assembly 1-3 onto the other end of the tool holder 1-2 to obtain the electrode assembly 1; 3) The pressed product is ultrasonically cleaned and dried; 4) The dried electrode assembly is connected to the conduit and control handle 3.

[0031] Preferably, the electrode 1-1 has a diameter of 7.8 mm and the inner diameter of the tool holder 1-2 is 8 mm. The electrode diameter is slightly smaller than the inner diameter of the tool holder, which ensures a good crimping effect and results in good conductivity during use.

[0032] Preferably, the electrode 1-1 is a tungsten carbide electrode, and the tool holder 1-2 is a stainless steel tool holder.

[0033] like Figure 1 As shown, a high-frequency ablation electrode includes a handle 2, an LED switch 6 (to control the light to turn on), a control switch 3, an indicator light 7, a cable 4, and a plug 5. The handle 2 is connected to the electrode assembly 1.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electrode assembly forming apparatus, comprising a frame (8), a drive device (13), and a worktable (9), wherein a lower stamping assembly is provided on the worktable (9), and the drive device (13) is connected to the upper stamping assembly, characterized in that: The lower stamping assembly includes a lower guide mechanism, which is connected to the worktable (9) via a clamping assembly (20). A lower fixture plate (11) is connected to the lower guide mechanism. The lower fixture plate (11) is provided with a placement groove (14) for accommodating electrodes. A positioning block (15) is provided on each side of the placement groove (14). The side of the positioning block (15) closest to the placement groove (14) is an inclined surface. The upper stamping assembly includes an upper fixed platform (19), which is connected to the upper guide mechanism via a pressing assembly (20). The bottom of the upper guide mechanism is connected to the upper fixture plate (12), and the upper fixture plate (12) is provided with a pressure plate (17) that cooperates with the positioning block (15).

2. The electrode assembly forming apparatus according to claim 1, characterized in that: The angle α between the positioning blocks (15) on both sides of the placement slot (14) is 120°.

3. The electrode assembly forming apparatus according to claim 1, characterized in that: The lower fixture plate (11) is provided with a clearance area (16) perpendicular to the placement slot (14).

4. The electrode assembly forming apparatus according to claim 1, characterized in that: The clamping assembly (20) includes a T-shaped slider (20-1) and a support plate (20-2). The T-shaped slider (20-1) cooperates with the slide groove (20-3). The slide groove (20-3) is set on the worktable (9) and the upper fixed table (19). The end of the T-shaped slider (20-1) passes through the clamping plate (20-4) and is connected to the limit bolt. The other end of the clamping plate (20-4) clamps the support plate onto the worktable (9) or the upper fixed table (19).

5. The electrode assembly forming apparatus according to claim 1, characterized in that: The lower guide mechanism includes a lower guide platform (21), on which a guide column (10) is fixed. The upper guide mechanism includes an upper guide platform (22), on which a guide cylinder (18) is fixed. The guide column (10) and the guide cylinder (18) cooperate with each other.

6. An electrode assembly prepared using the molding apparatus according to any one of claims 1 to 5, characterized in that... It is carried out according to the following steps: 1) Place the electrode (1-1) into the tool bar (1-2), and then place it into the placement slot (14) of the lower fixture plate (11). Start the drive device (13) to drive the upper fixture plate (12) to work downwards. The pressure plate (17) presses the connection between the electrode (1-1) and the tool bar (1-2). 2) Use a punch press to press the lantern flower assembly (1-3) onto the other end of the tool holder (1-2) to obtain the electrode assembly; 3) The pressed product is ultrasonically cleaned and dried; 4) The dried electrode assembly is connected to the conduit and control handle (3).

7. The electrode assembly according to claim 6, characterized in that: The electrode (1-1) has a diameter of 7.8 mm and the inner diameter of the tool holder (1-2) is 8 mm.

8. The electrode assembly according to claim 6, characterized in that: The electrode (1-1) is a tungsten steel electrode, and the tool holder (1-2) is a stainless steel tool holder.

9. A high-frequency ablation electrode, comprising a handle (2), wherein the handle (2) is provided with an LED switch (6), an indicator light (7), a cable (4), and a plug (5), characterized in that: The handle (2) is connected to the electrode assembly prepared according to claim 5.

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