Electrocoagulation forceps head with multi-layer structure

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to an electrocoagulation forceps head with a multi-layer structure. In order to solve the problems that in the prior art, an electric coagulation forceps head is prone to electric leakage, and an electrode slice is prone to falling off, the utility model provides an electric coagulation forceps head of a multilayer structure, which comprises a pair of symmetrical forceps head parts hinged to each other at one end, and each forceps head part comprises a forceps head framework, an insulating connecting seat and an electrode slice, the insulating connecting seat is connected with the tong head framework and the electrode plate; the wire penetrates through the clamp head framework and is fixedly connected with the side, close to the clamp head framework, of the electrode plate through the insulating connecting seat, and an injection molding space is formed among the clamp head framework, the insulating connecting seat and the wire. The injection molding space can integrally form the insulating base through injection molding under the limiting cooperation of an external mold, so that the electrode plates and one part of the wire form a whole, the overall strength of the structure and the insulativity of a non-working area are improved, and the risk of accidental burning in an operation is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, and in particular relates to a multi-layered electrocoagulation forceps head. Background Technology

[0002] Traditional electrocoagulation heads have electrodes, forceps head skeleton insulation sleeves, etc. installed separately. Not only are the components prone to separation under stress, affecting the operation, but the insulation layout is not perfect, which can easily cause short circuits and burns.

[0003] For example, a Chinese invention patent application discloses a bipolar electrocautery clamp head with enhanced insulation [Application No.: 201921563970.7]. This invention includes a mounting base with a fork at the front end and correspondingly arranged first and second clamp bodies. The rear ends of both the first and second clamp bodies are located within the fork. The first clamp body is hinged to the fork, and the second clamp body is hinged to the tail of the first clamp body. The tail of the second clamp body is hinged to a pull rod, which passes through the mounting base and can move axially along the mounting base. A labyrinthine insulation structure located within the fork and preventing short circuits during operation is provided between the first and second clamp bodies.

[0004] While the invention effectively avoids the problem of short circuit in the power supply of the electrocoagulation forceps during surgery, there is still room for improvement in the insulation of the non-working parts of the forceps head, and the overall structural strength is not high. When the forceps head is used to clamp, it is easy to cause the electrode plates to fall off and the wires to break. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a multi-layered electrocoating pliers head, which improves the overall strength of the connection between the insulating part, the electrode plate, and the wire, and perfects the insulation layout of the non-electrocoating working surface.

[0006] This utility model includes a pair of symmetrical pliers heads hinged to each other at one end. Each pliers head includes a pliers head frame, an insulating connecting seat, and an electrode plate. The insulating connecting seat connects the pliers head frame and the electrode plate. It also includes a wire. The wire passes through the pliers head frame, passes through the insulating connecting seat, and is fixedly connected to the electrode plate near the pliers head frame. The insulating connecting seat includes a raised wing at the top, which clamps the electrode plate near the pliers head frame. The insulating connecting seat includes an injection-molded solidification area accommodating the connection point between the wire and the electrode plate. A wire channel is provided near the wire, and the wire channel communicates with the injection-molded solidification area. An injection space is formed between the pliers head frame, the insulating connecting seat, and the wire. This injection space can be integrally injection molded to form an insulating base under the constraint of an external mold, making the electrode plate and part of the wire a single unit.

[0007] Preferably, the insulating base includes a nested space to accommodate the bottom of the pliers head frame, and the insulating connecting seat is sleeved on the upper part of the pliers head frame to fix the electrode plate and the wire.

[0008] Preferably, the clamp head skeleton includes positioning holes.

[0009] Preferably, the insulating base has an integrally injection-molded protrusion that mates with the positioning hole.

[0010] Preferably, the vertical sidewalls of the electrode sheet have uniformly arranged injection grooves.

[0011] Preferably, the end of the pliers head frame away from the wire is curved, and the insulating base and the insulating connector form a curved groove that encloses a space to accommodate one end of the pliers head frame.

[0012] Preferably, one end of the wire is fixedly connected to a metal plate, and the metal plate is welded to the electrode sheet.

[0013] Preferably, the electrode sheet has multiple groove areas.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] This invention employs a clever scheme to pre-pass the wires through the inside of the clamp head frame and the insulating connector before injection molding, and then weld them to the electrode pads via a metal plate. This allows for the formation of an insulating base through integrated injection molding under mold constraints. The insulating base completely encloses the non-working surface of the electrode pads and the wires, making the clamp head frame, electrode pads, and wires partly a single unit. This design enhances the resistance to loosening between components, improves the overall structural stability, ensures stable wire connections that are less prone to breakage and leakage, and eliminates the risk of accidental burns during surgery by eliminating any conductive parts other than the working surface of the electrode pads. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall head of the pliers of this utility model;

[0017] Figure 2 This is a schematic diagram of a partial explosion at the head of the pliers;

[0018] Figure 3 for Figure 1 Complete explosion diagram;

[0019] Figure 4 This is a schematic diagram of a partial explosion of the present invention;

[0020] Figure 5 This is a schematic diagram of the overall design of this utility model;

[0021] Figure 6 This is a schematic diagram showing the peeling off of the main body of the insulating base of the pliers head of this utility model;

[0022] In the diagram: 1. Clamp head; 2. Clamp head frame; 3. Insulating connector; 4. Electrode plate; 5. Injection space; 6. Insulating base; 7. Bending groove enclosed space; 8. Metal plate; 9. Positioning hole; 21. Protruding wing; 31. Injection molding solidification area; 32. Wire channel; 33. Injection groove; 41. Groove area; 42. Nesting space; 71. Protrusion; 72. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] This utility model is a multi-layered electrocautery clamp head, such as Figure 1-4 As shown, the device includes a pair of symmetrical pliers heads 1 hinged at one end. Each pliers head 1 includes a pliers head frame 2, an insulating connector 3, and an electrode plate 4. The insulating connector 3 connects the pliers head frame 2 and the electrode plate 4. It also includes a wire 5. The wire 5 passes through the pliers head frame 2 and the insulating connector 3, and is fixedly connected to the electrode plate 4 near the pliers head frame 2. The insulating connector 3 includes a raised wing 31 at the top, which clamps the electrode plate 4 near the pliers head frame 2. The insulating connector 3 includes an injection-molded solidification area 32 that accommodates the connection point between the wire 5 and the electrode plate 4. A wire channel 33 is provided near the wire 5 and communicates with the injection-molded solidification area 32. An injection space 6 is formed between the pliers head frame 2, the insulating connector 3, and the wire 5. The injection space 6 can be integrally injection molded to form an insulating base 7 under the constraint of an external mold, making the electrode plate 4 and part of the wire 5 a single unit.

[0025] Specifically, the injection space 6 refers to the gaps formed between the various components, which are filled into the mold as shown in the image. Figure 6 The insulating base 7 shown in the figure enters the injection space 6 through various holes and slots after the molten plastic enters the main body. Finally, the molten plastic cools and solidifies, and the main body of the insulating base 7 and the plastic flowing into the injection space 6 will eventually become a whole, realizing an integrated structure.

[0026] In this invention, during installation, the pliers head frame 2 is fitted onto the insulating connector 3. The rear end of the pliers head frame 2 passes through the internal space of the pliers head frame 2 and the insulating connector 3, and is fixedly connected to the side of the electrode plate 4 near the pliers head frame 2. An injection molding die is then fitted, and injection molding is performed through the injection hole of the die. Under the constraint of the die, the molten plastic first fills the area below the pliers head frame 2 to form the main body of the insulating base 7, while simultaneously flowing into the injection space 6. The final formed insulating base 7, in conjunction with the insulating connector 3, ensures that only the working surface of the electrode plate 4 is exposed on the pliers head 1, providing conductivity. The plastic cools within the injection space 6, making the insulating connector 3, electrode plate 4, and part of the wire 5 a single unit. The protruding wing 31 clamps the side of the electrode plate 4 near the pliers head frame 2, increasing the retention effect of the electrode plate 4 and making it less likely to fall off.

[0027] like Figure 3 As shown, the insulating connector 3 includes an injection-molded solidification area 32 that accommodates the connection point between the wire 5 and the electrode plate 4. A wire channel 33 is provided near the wire 5, and the wire channel 33 communicates with the injection-molded solidification area 32. Because the welding point of the wire electrode plate 4 cannot be perfectly replicated, the injection-molded solidification area 32 is provided. During the injection molding process, molten plastic can flow in through the positioning hole 21 and other communicating spaces, and finally, the plastic cools and solidifies to encapsulate and stabilize the wire 5. The wire channel 33 serves as a basic guide for the wire 5 in the early stages. After injection molding, the insulating connector 3 and the connection area between the wire 5 and the electrode plate 4 become a single unit, preventing the wire 5 from breaking due to movement and pulling during surgery.

[0028] Preferably, the insulating base 7 includes a nesting space 71 to accommodate the bottom of the pliers head frame 2, and the insulating connecting seat 3 is sleeved on the upper part of the pliers head frame 2 to fix the electrode plate 4 and the wire 5.

[0029] Preferably, the clamp head skeleton 2 includes a positioning hole 21, the opening of which makes it easier for the injection molding liquid to flow into the injection space 6.

[0030] After injection molding, it is easy to imagine that the insulating base 7 will have a protrusion 72 formed by integral injection molding that matches the positioning hole 21. The two are nested together to increase the connection stability between the insulating base 7 and the pliers head skeleton 2.

[0031] Preferably, the vertical sidewalls of the electrode sheet 4 have uniformly arranged injection grooves 41, and its internal space is also part of the injection space 6, which facilitates the injection of plastic to make its connection with the insulating connector 3 more stable.

[0032] Specifically, preferred, such as Figure 4 As shown, the end of the pliers head frame 2 away from the wire 5 is curved. The insulating base 7 and the insulating connector 3 form a curved groove closed space 8 to accommodate the rear end of the pliers head frame 2. The curved nested fit helps to increase the limiting effect and further improve the structural stability.

[0033] Preferably, one end of the wire 5 is fixedly connected to the metal plate 9, and the metal plate 9 is welded to the electrode sheet 4, thereby increasing the connection stability by increasing the welding area.

[0034] Preferably, in order to stabilize the clamping state and increase friction, the electrode sheet 4 has multiple groove areas 42.

[0035] The working principle of this utility model is as follows: The pliers head frame 2 is fitted onto the insulating connector 3 via the protruding wing 31. The wire 5 passes through the internal space of the pliers head frame 2 from the rear end and sequentially passes through the wire channel 33 of the insulating connector 3 and the injection molding solidification area 32. Finally, it is welded to the electrode plate 4 near the side of the pliers head frame 2 via the metal plate 9. The injection molding mold is then fitted onto the pliers head frame 2, and injection molding is performed through the positioning hole of the mold. Under the limitation of the mold, the molten plastic first fills the space below the pliers head frame 2 to form the main body space of the insulating base 7 and flows into the injection space 6 through the positioning hole 21, injection groove 41, etc. The plastic cools in the injection space 6, making the insulating connector 3, electrode plate 4, and part of the wire 5 a whole. The finally formed insulating base 7 makes only the working surface of the electrode plate 4 exposed on the pliers head 1, which has conductivity. Finally, as Figure 5 As shown, by hinged two clamp heads 1 to form an openable electrocoagulation clamp head, the electrode plates 4 of the upper and lower clamp heads 1 clamp the tissue for electrocoagulation.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0037] Although this document frequently uses terms such as 1. clamp head, 2. clamp head frame, 3. insulating connector, 4. electrode plate, 5. wire, 6. injection molding space, 7. insulating base, 8. curved groove enclosed space, 9. metal plate, 21. positioning hole, 31. protruding wing, 32. injection molding solidification area, 33. wire channel, 41. injection molding groove, 42. groove area, 71. nesting space, and 72, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A multi-layered electrocautery clamp head, comprising a pair of symmetrical clamp heads (1) hinged together at one end, each clamp head (1) comprising a clamp head frame (2), an insulating connector (3), and an electrode plate (4), the insulating connector (3) connecting the clamp head frame (2) and the electrode plate (4); further comprising a wire (5); characterized in that: The wire (5) passes through the clamp head frame (2) and is fixedly connected to the electrode plate (4) near the clamp head frame (2) via the insulating connector (3). The insulating connector (3) includes a raised wing (31) located at the top, which clamps the electrode plate (4) near the clamp head frame (2). The insulating connector (3) includes an injection molding solidification area (32) that accommodates the connection point between the wire (5) and the electrode plate (4). A wire channel (33) is provided near the wire (5), and the wire channel (33) is connected to the injection molding solidification area (32). An injection molding space (6) is formed between the clamp head frame (2), the insulating connector (3), and the wire (5). The injection molding space (6) can be integrally injection molded to form an insulating base (7) under the limiting cooperation of an external mold, so that part of the electrode plate (4) and the wire (5) become a whole.

2. The multi-layered electrocautery clamp head as described in claim 1, characterized in that: The insulating base (7) includes a nesting space (71) to accommodate the bottom of the pliers frame (2), and the insulating connector (3) is fitted onto the upper part of the pliers frame (2) to fix the electrode plate (4) and the wire (5).

3. The multi-layered electrocautery clamp head as described in claim 2, characterized in that: The clamp head skeleton (2) includes a positioning hole (21).

4. The multi-layered electrocautery clamp head as described in claim 2, characterized in that: The insulating base (7) has an integrally injection molded protrusion (72) that fits into the positioning hole (21).

5. The multi-layered electrocautery clamp head as described in claim 1, characterized in that: The vertical sidewall of the electrode sheet (4) has uniformly arranged injection grooves (41).

6. The multi-layered electrocautery clamp head as described in claim 2, characterized in that: The end of the pliers head frame (2) away from the wire (5) is curved. The insulating base (7) and the insulating connector (3) form a curved groove closed space (8) to accommodate one end of the pliers head frame (2).

7. The multi-layered electrocautery clamp head as described in claim 1, characterized in that: One end of the wire (5) is fixedly connected to the metal plate (9), and the metal plate (9) is welded to the electrode sheet (4).

8. The multi-layered electrocautery clamp head as described in claim 1, characterized in that: The electrode sheet (4) has multiple groove areas (42).

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