Forceps type bipolar electrocoagulator

Abstract

The invention discloses a tweezers type bipolar electrocoagulator which comprises two tweezers handles, two tweezers heads and a tweezers tail connecting assembly. The rear end of each tweezers head is detachably connected with the front end of one tweezers handle, and the rear ends of the two tweezers handles are fixedly connected through the tweezers tail connecting assembly; the detachable connection between the tweezers heads and the tweezers handles adopts buckle type connection and plug-in type connection; the tweezers head comprises a tweezers head body part, a tongue plate and a buckling cover part; the buckling cover part is fixedly arranged at the rear end of the forceps head body part through a tongue plate; the cover buckling part is plate-shaped and is provided with a window; the tweezer head body part is semi-cone-shaped and is hollow inside; the tweezers handle comprises a tweezers handle body part, a nose bridge part and a trunk part, and the trunk part is in a semi-cone shape; the inner side face or the outer side face of the nose bridge part is provided with a wedge-shaped protrusion, and the window of the buckling cover part can be buckled with the wedge-shaped protrusion. The shape and the size of the trunk part are matched with those of the inner cavity of the tweezers head body part, and the trunk part can be inserted into the inner cavity of the tweezers head body part. According to the tweezers type bipolar electrocoagulator, the tweezers heads and the tweezers handles can be firmly connected.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a forceps-type bipolar electrocoagulation device. Background Technology

[0002] Forceps-type bipolar electrocoagulators are a common medical device. They utilize the two tips of forceps as electrodes to deliver high-frequency electrical energy to the patient's diseased tissue, causing the blood vessel between the two electrodes to dehydrate and coagulate, thereby achieving hemostasis.

[0003] Traditional tweezer-type bipolar electrocoagulation devices adopt an integrated structure, which includes the following two types: one is reusable, but after repeated use, the electrode tip is prone to accumulating foreign matter that is difficult to clean, and the electrode tip is easily damaged, affecting subsequent use; the other is disposable, which is discarded after one use. Although this can avoid the electrode tip from accumulating foreign matter, the cost is too high.

[0004] To address these issues, engineers designed a split-structure tweezers-type bipolar electrocoagulator, comprising an electrode head and a tweezers body, which are detachably connected. In this split-structure tweezers-type bipolar electrocoagulator, the tweezers body is reusable, while the electrode head is disposable; after each use, only the electrode head is discarded, while the tweezers body is reusable. However, existing split-structure tweezers-type bipolar electrocoagulators rely solely on a snap-lock connection between the tweezers head and handle, which is prone to instability. During use, the tweezers head and handle easily detach; for example, even slight force from the user can cause them to separate, affecting the user's (e.g., surgeon's) experience. Furthermore, the assembly and connection of the electrode head and tweezers body is cumbersome. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a tweezer-type bipolar electrocoagulator to overcome the above-mentioned defects and deficiencies of the prior art.

[0006] To solve the above-mentioned technical problems, the invention adopts the following technical solution: A tweezer-type bipolar electrocoagulator is provided, comprising two tweezer handles, two tweezer tips, and a tweezer tail connecting assembly. The two tweezer handles are identical and symmetrically arranged, as are the two tweezer tips. The rear end of each tweezer tip is detachably connected to the front end of a tweezer handle. The rear ends of the two tweezer handles are fixedly connected by the tweezer tail connecting assembly, so that the two tweezer handles and two tweezer tips together constitute a complete pair of tweezers. The bodies of the two tweezer handles and two tweezer tips are all made of conductive material, and each pair of connected tweezer tips and tweezer handles is electrically conductive to each other. The surfaces of the two tweezer handles are provided with an insulating layer to prevent electric shock to the user during use. The tweezer tail connecting assembly is an insulator, ensuring that the two tweezer handles are mutually insulated. The detachable connection between the tweezer tips and tweezer handles employs a dual connection structure of snap-fit ​​and insertion connection. A secure connection is achieved between the tweezers head and the tweezers handle; the tweezers head is a semi-conical shape with a narrow front end and a wide rear end; the front end of the tweezers head is closed and the rear end is open, and the interior of the tweezers head is hollow; the tweezers head includes a cap, which is fixedly located at the rear end of the tweezers head; the tweezers handle includes a handle body, a bridge of the nose, and a trunk; the bridge of the nose is a trapezoidal shape with a narrow front end and a wide rear end, and the trunk is a semi-conical shape with a narrow front end and a wide rear end; the rear end of the bridge of the nose is fixedly connected to the front end of the handle body, and the rear end of the trunk is fixedly connected to the front end of the bridge of the nose; a wedge-shaped protrusion is fixedly provided on the inner or outer side of the bridge of the nose, and the cap can engage with the wedge-shaped protrusion; the shape and size of the trunk are adapted to the internal cavity of the tweezers head, so that the trunk can be inserted into the internal cavity of the tweezers head.

[0007] Preferably, the tweezers further includes a tweezers body and a tongue plate; the front end of the tongue plate is fixedly connected to the rear end of the tweezers body, and the rear end of the tongue plate is fixedly connected to the front end of the cover; the cover is plate-shaped and has a window at its center, and a wedge-shaped protrusion can pass through the window of the cover, so that the cover can engage with the wedge-shaped protrusion; the tweezers body is semi-conical and hollow inside, with its front end closed; the shape and size of the trunk part are adapted to the internal cavity of the tweezers body, so that the trunk part can be inserted into the internal cavity of the tweezers body.

[0008] More preferably, the rear end of the elephant trunk extends rearward along the outer side of the bridge of the nose to the front end of the tweezers handle body, and the rear end of the elephant trunk is embedded inside the bridge of the nose; a wedge-shaped protrusion is fixedly provided on the outer side of the elephant trunk.

[0009] More preferably, the tweezers body includes an inner plate and an outer plate, the front ends of the inner plate and the outer plate are fixedly connected, and the outer plate is inclined relative to the inner plate, so that the tweezers body is semi-conical; the inner plate is located within the axial section of the tweezers body, the outer plate extends along the generatrix of the tweezers body, and a semi-conical angle is formed between the outer plate and the inner plate; the front end of the tongue plate is fixedly connected to the rear end of the outer plate of the tweezers body; the two sides of the inner plate of the tweezers body and the two sides of the outer plate are respectively fixedly connected by two first arc-shaped plates, so that the inner plate, the outer plate and the two first arc-shaped plates form a cavity that is closed at the front end and all four sides and open at the rear end, and the rear ends of the two first arc-shaped plates are flush with the rear end of the inner plate; the two sides of the outer side of the elephant trunk are connected to the two rib sides by arc-shaped transition surfaces.

[0010] More preferably, the rear end face of the wedge-shaped protrusion is perpendicular to the outer side of the trunk, and the wedge-shaped protrusion is close to the front end of the tweezer handle body; a through hole is provided between the wedge-shaped protrusion and the front end of the tweezer handle body, penetrating the trunk and the bridge of the nose; the inner side of the bridge of the nose and the inner side of the tweezer handle body are located in the same plane, and a first step is provided at the connection between the inner side of the trunk and the inner side of the bridge of the nose; a second arc-shaped plate is fixedly provided on both sides of the cover, and the two second arc-shaped plates are symmetrical to each other and both bend inward.

[0011] More preferably, the connection between the front end of the tongue plate and the outer side plate is located on the front side of the rear end face of the inner side plate, and two first U-shaped grooves are respectively provided between the two first arc-shaped plates and the two sides of the front end of the tongue plate; the connection between the rear end of the tongue plate and the buckle is located on the rear side of the rear end head of the inner side plate, and two second U-shaped grooves are respectively provided between the two second arc-shaped plates and the two sides of the rear end of the tongue plate; the provision of the first U-shaped grooves and the second U-shaped grooves can reduce the strength of the tongue plate, so that the buckle, which is fixedly connected to the tongue plate, has a moderate range of elastic movement in the lateral direction.

[0012] More preferably, a wedge-shaped protrusion is fixedly provided on the inner side of the bridge of the nose.

[0013] More preferably, the forceps body includes an inner plate and an outer plate, the front ends of the inner plate and the outer plate are fixedly connected, and the outer plate is inclined relative to the inner plate, so that the forceps body is semi-conical; the inner plate is located within the axial section of the forceps body, the outer plate extends along the generatrix of the forceps body, and a semi-conical angle is formed between the outer plate and the inner plate; the front end of the tongue plate is fixedly connected to the rear end of the inner plate of the forceps body; the two sides of the inner plate of the forceps body and the two sides of the outer plate are respectively fixedly connected by two first arc-shaped plates, so that the inner plate, the outer plate and the two first arc-shaped plates form a cavity that is closed at the front end and all four sides and open at the rear end, and the rear ends of the two first arc-shaped plates are flush with the rear ends of the outer plate; the two sides of the outer side of the elephant trunk are connected to the two rib sides by arc-shaped transition surfaces.

[0014] More preferably, the rear end face of the wedge-shaped protrusion is perpendicular to the inner surface of the bridge of the nose, and the wedge-shaped protrusion is close to the front end of the tweezer handle body; a through hole is provided between the wedge-shaped protrusion and the front end of the tweezer handle body; a second step is provided at the connection between the bridge of the nose and the trunk; the inner surface of the bridge of the nose and the inner surface of the trunk are in the same plane, and a third step is provided at the connection between the inner surface of the bridge of the nose and the inner surface of the tweezer handle body, and the third step is located on the rear side of the connection between the bridge of the nose and the tweezer handle body.

[0015] More preferably, the connection between the front end of the tongue plate and the inner side plate of the tweezers body is located on the front side of the rear end face of the outer side plate, and two first U-shaped grooves are respectively provided between the two first arc-shaped plates and the two sides of the front end of the tongue plate; the connection between the rear end of the tongue plate and the cover part is located on the rear side of the rear end head of the outer side plate, and two second U-shaped grooves are respectively provided on the two sides of the rear end of the tongue plate; the provision of the first U-shaped groove and the second U-shaped groove can reduce the strength of the tongue plate, so that the cover part fixedly connected to the tongue plate has a moderate range of elastic movement in the lateral direction.

[0016] Unless otherwise specified, all raw materials used in this invention can be obtained commercially, and the equipment used in this invention can be conventional equipment in the relevant field or refer to existing technology in the relevant field.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) The tweezers bipolar electrocoagulation device provided by the present invention includes two tweezer handles, two tweezer heads and a tweezer tail connecting assembly; the two tweezer handles are identical and symmetrically arranged, and the two tweezer heads are identical and symmetrically arranged; the rear end of each tweezer head is detachably connected to the front end of a tweezer handle, and the rear ends of the two tweezer handles are fixedly connected by the tweezer tail connecting assembly, so that the two tweezer handles and the two tweezer heads together constitute a complete tweezers; wherein the body parts of the two tweezer handles and the two tweezer heads are all made of conductive material, and each pair of interconnected tweezer heads and tweezer handles are electrically conductive to each other, and the surface of the two tweezer handles is provided with an insulating layer; the tweezer tail connecting assembly is an insulator, so that the two tweezer handles are insulated from each other; the detachable connection between the tweezer head and the tweezer handle adopts a double connection structure of snap-fit ​​connection and insertion connection, so as to achieve a firm connection between the tweezer head and the tweezer handle.

[0018] (2) The tweezers-type bipolar electrocoagulation device provided by the present invention has a tweezers head that is generally shaped like a semi-cone with a narrow front end and a wide rear end; the front end of the tweezers head is closed and the rear end is open, and the interior of the tweezers head is hollow; the tweezers head includes a tweezers head body, a tongue plate and a cover, the front end of the tongue plate is fixedly connected to the rear end of the tweezers head body, and the rear end of the tongue plate is fixedly connected to the front end of the cover; the tweezers head body is shaped like a semi-cone and hollow, and its front end is closed; the tweezers handle includes a tweezers handle body, a bridge of the nose and an elephant trunk; the bridge of the nose is trapezoidal in the longitudinal direction with a narrow front end and a wide rear end, and the elephant trunk is generally shaped like a semi-cone with a wide rear end. The device has a semi-conical shape, narrow at the front and wide at the rear. The rear end of the bridge of the nose is fixedly connected to the front end of the handle, and the rear end of the trunk is fixedly connected to the front end of the bridge of the nose. A wedge-shaped protrusion is fixedly provided on the inner or outer side of the bridge of the nose. The cover is plate-shaped with a window at the center, through which the wedge-shaped protrusion can pass, allowing the cover to engage with the wedge-shaped protrusion. The shape and size of the trunk are adapted to the internal cavity of the forceps body, allowing the trunk to be inserted into the internal cavity of the forceps body. In this bipolar electrocoagulation device, the connection between the forceps head and the handle is achieved not only through the engagement between the cover and the wedge-shaped protrusion, but also through the insertion of the trunk of the handle into the internal cavity of the forceps body, with the outer surface of the trunk adhering to the inner wall of the internal cavity of the forceps body. Both of these factors contribute to the secure connection between the forceps head and the handle. Therefore, compared to the existing tweezers where the connection between the tweezers head and the tweezers handle relies solely on a snap-lock connection, the tweezers bipolar electrocoagulator employs both a snap-lock connection structure and an insertion connection structure where the front end of the tweezers handle is inserted into the cavity inside the tweezers head. This makes the connection between the tweezers head and the tweezers handle more secure and prevents the tweezers head and the tweezers handle from detaching from each other during use.

[0019] (3) The tweezers bipolar electrocoagulator provided by the present invention has a disposable tweezers head. After each use, only the tweezers head is discarded, while the tweezers body can be reused. Since the tweezers head and the tweezers handle are detachably connected, after use, the tweezers head and the tweezers handle can be separated and the tweezers head can be discarded. The connection, assembly and disassembly of the tweezers head and the tweezers handle are simple. Attached Figure Description

[0020] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Figure 1 This is a three-dimensional structural schematic diagram of the tweezers-type bipolar electrocoagulator provided in Embodiment 1 of the present invention; Figure 2 One of the three-dimensional structural schematic diagrams of the tweezers head of the tweezers-type bipolar electrocoagulator provided in Embodiment 1 of the present invention; Figure 3 This is a second three-dimensional structural schematic diagram of the tweezers head of the tweezers-type bipolar electrocoagulator provided in Embodiment 1 of the present invention; Figure 4One of the three-dimensional structural schematic diagrams of the front end of the tweezer handle of the tweezer-type bipolar electrocoagulator provided in Embodiment 1 of the present invention; Figure 5 This is a second three-dimensional structural diagram of the front end of the tweezer handle of the tweezer-type bipolar electrocoagulator provided in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the structure of the tweezers head and tweezers handle of the tweezers bipolar electrocoagulator provided in Embodiment 1 of the present invention after connection; Figure 7 This is a schematic longitudinal section view of the tweezers head and tweezers handle of the tweezers-type bipolar electrocoagulator provided in Embodiment 1 of the present invention after connection (along... Figure 6 (The cross-section of line AA shown). Figure 8 This is a partially enlarged longitudinal section view of the tweezers head and tweezers handle of the tweezers bipolar electrocoagulator provided in Embodiment 1 of the present invention after connection. Figure 7 (Enlarged view of the front end of the cross-section shown). Figure 9 This is a three-dimensional structural schematic diagram of the tweezers-type bipolar electrocoagulator provided in Embodiment 2 of the present invention; Figure 10 This is one of the three-dimensional structural schematic diagrams of the tweezers head of the tweezers-type bipolar electrocoagulator provided in Embodiment 2 of the present invention; Figure 11 This is the second three-dimensional structural schematic diagram of the tweezers head of the tweezers-type bipolar electrocoagulator provided in Embodiment 2 of the present invention; Figure 12 This is one of the three-dimensional structural schematic diagrams of the front end of the tweezer handle of the tweezer-type bipolar electrocoagulator provided in Embodiment 2 of the present invention; Figure 13 This is the second three-dimensional structural diagram of the front end of the tweezer handle of the tweezer-type bipolar electrocoagulator provided in Embodiment 2 of the present invention; Figure 14 This is a schematic diagram of the structure of the tweezers head and tweezers handle of the tweezers bipolar electrocoagulator provided in Embodiment 2 of the present invention after connection; Figure 15 This is a schematic longitudinal section view of the tweezers head and tweezers handle of the tweezers-type bipolar electrocoagulator provided in Embodiment 2 of the present invention after connection (along... Figure 14 (The cross-section of line AA shown). Figure 16 This is a partially enlarged longitudinal section view of the tweezers head and tweezers handle of the tweezers bipolar electrocoagulator provided in Embodiment 2 of the present invention. Figure 15 (A partial magnification of the front end of the cross-section shown). Detailed Implementation

[0021] To more clearly illustrate the present invention, the following description, in conjunction with preferred embodiments, further clarifies the invention. Those skilled in the art should understand that the specific descriptions below are illustrative rather than restrictive, and should not be construed as limiting the scope of protection of the present invention. Example 1

[0022] like Figure 1 As shown, this embodiment provides a tweezer-type bipolar electrocoagulator, which includes two tweezer handles 10, two tweezer tips 20, and a tweezer tail connecting assembly 30; the two tweezer handles 10 are identical and symmetrically arranged, and the two tweezer tips 20 are identical and symmetrically arranged; the rear end of each tweezer tip 20 is detachably connected to the front end of one tweezer handle 10, and the rear ends of the two tweezer handles 10 are fixedly connected as a whole by the tweezer tail connecting assembly 30, so that the two tweezer handles 10 and the two tweezer tips 20 together constitute a complete pair of tweezers; wherein the two tweezer handles 10 The bodies of the two tweezer tips 20 (not shown in the figure) are made of conductive material, and each pair of interconnected tweezer tips 20 and tweezer handles 10 are electrically conductive to each other. The surfaces of the two tweezer handles 10 are provided with an insulating layer (not shown in the figure) to prevent the user from getting an electric shock during use. The tweezer tail connecting assembly 30 is an insulator, which makes the two tweezer handles 10 insulated from each other. The detachable connection between the tweezer tips 20 and the tweezer handles 10 adopts a double connection structure of snap-fit ​​connection and insertion connection to achieve a firm connection between the tweezer tips 20 and the tweezer handles 10.

[0023] like Figure 2 and Figure 3 As shown, the tweezers 20 is generally a semi-conical shape with a narrow front end and a wide rear end. The front end of the tweezers 20 is closed and the rear end is open, and the interior of the tweezers 20 is hollow. The tweezers 20 includes a tweezers body 21, a tongue plate 22, and a cover 23. The front end of the tongue plate 22 is fixedly connected to the rear end of the tweezers body 21, and the rear end of the tongue plate 22 is fixedly connected to the front end of the cover 23. The cover 23 is generally plate-shaped and has a window 24 at its center. In this embodiment, the window 24 is rectangular.

[0024] The front end of the forceps body 21 is closed. The forceps body 21 includes an inner plate 211 and an outer plate 212. The front ends of the inner plate 211 and the outer plate 212 are fixedly connected, and the outer plate 212 is inclined relative to the inner plate 211, making the forceps body 21 semi-conical. The inner plate 211 is located within the axial section of the forceps body 21 (i.e., within the axial section of the semi-cone), and the outer plate 212 extends along the generatrix of the forceps body 21 (i.e., the generatrix of the semi-cone). A semi-conical angle is formed between 212 and the inner side plate 211; the two sides of the inner side plate 211 and the two sides of the outer side plate 212 are respectively fixedly connected by two first arc-shaped plates 213, so that the inner side plate 211, the outer side plate 212 and the two first arc-shaped plates 213 form a cavity that is closed at the front end and all sides and open at the rear end, and the rear ends of the two first arc-shaped plates 213 are flush with the rear end of the inner side plate 211; the front end of the tongue plate 22 is fixedly connected to the rear end of the outer side plate 212 of the tweezers body 21.

[0025] In a preferred embodiment of this invention, a second arc-shaped plate 25 is fixedly provided on both sides of the cover portion 23, and the two second arc-shaped plates 25 are symmetrical to each other and both bend inward.

[0026] In a preferred embodiment of this example, the connection between the front end of the tongue plate 22 and the outer plate 212 of the tweezers body 21 is located on the front side of the rear end face of the inner plate 211 of the tweezers body 21. Two first U-shaped grooves 26 are respectively provided between the two first arc-shaped plates 213 and the two sides of the front end of the tongue plate 22. The connection between the rear end of the tongue plate 22 and the cover part 23 is located on the rear side of the rear end of the inner plate 211 of the tweezers body 21. Two second U-shaped grooves 27 are respectively provided between the two second arc-shaped plates 25 and the two sides of the rear end of the tongue plate 22. The provision of the first U-shaped grooves 26 and the second U-shaped grooves 27 can reduce the strength of the tongue plate 22, so that the cover part 23, which is fixedly connected to the tongue plate 22, has a moderate range of elastic movement in the lateral direction.

[0027] like Figure 4 and Figure 5 As shown, the tweezers handle 10 includes a handle body 11, a bridge of nose 12, and a trunk 13. The bridge of nose 12 is trapezoidal in shape, narrow at the front and wide at the rear. The trunk 13 is a semi-conical shape, narrow at the front and wide at the rear. The rear end of the bridge of nose 12 is fixedly connected to the front end of the handle body 11, and the rear end of the trunk 13 is fixedly connected to the front end of the bridge of nose 12. The rear end of the trunk 13 extends rearward along the outer side of the bridge of nose 12 to the front end of the handle body 11, and the rear end of the trunk 13 is embedded inside the bridge of nose 12. The two sides of the outer surface 131 of the trunk 13 are transitioned to the two rib sides 132 by arc-shaped transition surfaces 133. Connection; a wedge-shaped protrusion 14 is fixedly provided on the outer side 131 of the trunk part 13, the rear end face of the wedge-shaped protrusion 14 is perpendicular to the outer side 131 of the trunk part 13, and the wedge-shaped protrusion 14 is close to the front end of the tweezer handle body part 11; a through hole 15 is provided between the wedge-shaped protrusion 14 and the front end of the tweezer handle body part 11, penetrating the trunk part 13 and the bridge of the nose part 12; the inner side of the bridge of the nose part 12 and the inner side of the tweezer handle body part 11 are located in the same plane, and a first step part 16 is provided at the connection between the inner side 134 of the trunk part 13 and the inner side of the bridge of the nose part 12; the shape and size of the trunk part 13 are adapted to the internal cavity of the tweezer head body part 21.

[0028] like Figure 6 , Figure 7 and Figure 8As shown, when the tweezers head 20 and tweezers handle 10 are assembled together, the trunk portion 13 of the tweezers handle 10 is inserted into the internal cavity of the tweezers head body portion 21 of the tweezers head 20. The outer surface of the trunk portion 13 is in contact with the inner wall of the internal cavity of the tweezers head body portion 21. The wedge-shaped protrusion 14 is inserted into the window 24 of the cover portion 23. The rear end of the cover portion 23 extends into the through hole 15 of the bridge portion 12. The two second arc-shaped plates 25 are in contact with the arc-shaped transition surface 133 located above the bridge portion 12. The rear end face of the wedge-shaped protrusion 14 is in contact with the rear side wall of the window 24 of the cover portion 23. The two parts abut against each other, so that the cover part 23 and the wedge-shaped protrusion 14 are engaged with each other; at this time, the inner side of the inner side plate 211 of the tweezers body part 21, the inner side of the bridge of the nose part 12, and the inner side of the tweezers handle body part 11 are all located in the same plane; the rear end of the inner side plate 211 of the tweezers body part 21 abuts against the first step part 16, and the first step part 16 limits the tweezers body part 21; the rear end surfaces of the two first arc-shaped plates 213 of the tweezers body part 21 abut against the front end surfaces of the bridge of the nose part 12, and the front end surfaces of the bridge of the nose part 12 limit the tweezers body part 21.

[0029] It should be noted that the connection between the tweezers tip 20 and the tweezers handle 10 is achieved not only through the snap-fit ​​connection between the cap 23 and the wedge-shaped protrusion 14, but also through the insertion of the trunk portion 13 of the tweezers handle 10 into the internal cavity of the tweezers tip body 21 of the tweezers tip 20. Furthermore, the outer surface of the trunk portion 13 is in contact with the inner wall of the internal cavity of the tweezers tip body 21. Both of these factors contribute to the secure connection between the tweezers tip 20 and the tweezers handle 10. Therefore, compared to the connection between the tweezers tip and the tweezers handle relying solely on a snap-fit ​​connection, the tweezers bipolar electrocoagulator of this embodiment employs both a snap-fit ​​connection structure and an insertion connection structure where the front end of the tweezers handle is inserted into the internal cavity of the tweezers tip. This makes the connection between the tweezers tip and the tweezers handle more secure, preventing the tweezers tip and the tweezers handle from separating during use. The cap 23 can both snap onto the wedge-shaped protrusion 14 and detach from it under external force, thus facilitating the assembly and disassembly of the tweezers tip 20 and the tweezers handle 10.

[0030] Before use, connect the tweezers head 20 to the tweezers handle 10; after use, disassemble the tweezers head 20 from the tweezers handle 10 and discard the tweezers head 20. The method for disassembling the tweezers head 20 from the tweezers handle 10 is as follows: use a tool (such as a screwdriver) to insert into the through hole 15 and forcefully push outwards against the rear end of the cover portion 23, so that the wedge-shaped protrusion 14 disengages from the window 24 of the cover portion 23, thereby disassembling the tweezers head 20 from the tweezers handle 10.

[0031] In this embodiment, the forceps-type bipolar electrocoagulator has two forceps handles 10, the rear ends of which are electrically connected to two electrodes (not shown in the figure). Each pair of interconnected forceps heads 20 and forceps handles 10 are electrically conductive to each other. When energized, the front ends of the two forceps heads 20 form two electrode heads, and a strong current flows between them, thereby providing high-frequency electrical energy to the patient's diseased tissue. This causes the blood vessels between the two forceps heads to dehydrate and coagulate, achieving hemostasis. This forceps-type bipolar electrocoagulator is used in conjunction with high-frequency surgical equipment (not shown in the figure) for electrocoagulation of target tissues in non-endoscopic surgical procedures. Example 2

[0032] like Figure 9 As shown, this embodiment provides a tweezer-type bipolar electrocoagulator, which includes two tweezer handles 10, two tweezer tips 20, and a tweezer tail connecting assembly 30; the two tweezer handles 10 are identical and symmetrically arranged, and the two tweezer tips 20 are identical and symmetrically arranged; the rear end of each tweezer tip 20 is detachably connected to the front end of one tweezer handle 10, and the rear ends of the two tweezer handles 10 are fixedly connected as a whole by the tweezer tail connecting assembly 30, so that the two tweezer handles 10 and the two tweezer tips 20 together constitute a complete pair of tweezers; wherein the two tweezer handles 10 The bodies of the two tweezer tips 20 (not shown in the figure) are made of conductive material, and each pair of interconnected tweezer tips 20 and tweezer handles 10 are electrically conductive to each other. The surfaces of the two tweezer handles 10 are provided with an insulating layer (not shown in the figure) to prevent the user from getting an electric shock during use. The tweezer tail connecting assembly 30 is an insulator, which makes the two tweezer handles 10 insulated from each other. The detachable connection between the tweezer tips 20 and the tweezer handles 10 adopts a double connection structure of snap-fit ​​connection and insertion connection to achieve a firm connection between the tweezer tips 20 and the tweezer handles 10.

[0033] like Figure 10 and Figure 11 As shown, the tweezers 20 is generally a semi-conical shape with a narrow front end and a wide rear end. The front end of the tweezers 20 is closed and the rear end is open, and the interior of the tweezers 20 is hollow. The tweezers 20 includes a tweezers body 21, a tongue plate 22, and a cover 23. The front end of the tongue plate 22 is fixedly connected to the rear end of the tweezers body 21, and the rear end of the tongue plate 22 is fixedly connected to the front end of the cover 23. The cover 23 is generally plate-shaped and has a window 24 at its center. In this embodiment, the window 24 is rectangular.

[0034] The front end of the forceps body 21 is closed. The forceps body 21 includes an inner plate 211 and an outer plate 212. The front ends of the inner plate 211 and the outer plate 212 are fixedly connected, and the outer plate 212 is inclined relative to the inner plate 211, making the forceps body 21 semi-conical. The inner plate 211 is located within the axial section of the forceps body 21 (i.e., within the axial section of the semi-cone), and the outer plate 212 extends along the generatrix of the forceps body 21 (i.e., the generatrix of the semi-cone). A semi-conical angle is formed between 212 and the inner side plate 211; the two sides of the inner side plate 211 and the two sides of the outer side plate 212 are respectively fixedly connected by two first arc-shaped plates 213, so that the inner side plate 211, the outer side plate 212 and the two first arc-shaped plates 213 form a cavity that is closed at the front end and all four sides and open at the rear end, and the rear ends of the two first arc-shaped plates 213 are flush with the rear ends of the outer side plate 212; the front end of the tongue plate 22 is fixedly connected to the rear end of the inner side plate 211 of the tweezers body 21.

[0035] In a preferred embodiment of this example, the connection between the front end of the tongue plate 22 and the inner side plate 211 of the tweezers body 21 is located on the front side of the rear end face of the outer side plate 212. Two first U-shaped grooves 26 are respectively provided between the two first arc-shaped plates 213 and the two sides of the front end of the tongue plate 22. The connection between the rear end of the tongue plate 22 and the cover part 23 is located on the rear side of the rear end head of the outer side plate 212. Two second U-shaped grooves 27 are respectively provided on the two sides of the rear end of the tongue plate 22. The provision of the first U-shaped grooves 26 and the second U-shaped grooves 27 can reduce the strength of the tongue plate 22, so that the cover part 23, which is fixedly connected to the tongue plate 22, has a moderate range of elastic movement in the lateral direction.

[0036] like Figure 12 and Figure 13As shown, the tweezers handle 10 includes a handle body 11, a bridge of the nose 12, and a trunk 13. The bridge of the nose 12 is a trapezoidal shape that is narrow at the front end and wide at the rear end. The trunk 13 is a semi-conical shape that is narrow at the front end and wide at the rear end. The rear end of the bridge of the nose 12 is fixedly connected to the front end of the handle body 11, and the front end of the bridge of the nose 12 is fixedly connected to the rear end of the trunk 13, with a second step 17 provided at the connection point. The two sides of the outer surface 131 of the trunk 13 are connected to the two rib sides 132 by arc-shaped transition surfaces 133. A wedge-shaped protrusion 14 is fixedly provided on the inner surface of the bridge of the nose 12. The rear end face of 14 is perpendicular to the inner side of the bridge of the nose 12, and the wedge-shaped protrusion 14 is close to the front end of the tweezer handle body 11; a through hole 15 is provided between the wedge-shaped protrusion 14 and the front end of the tweezer handle body 11, penetrating the bridge of the nose 12; the inner side of the bridge of the nose 12 and the inner side 134 of the trunk 13 are located in the same plane, and a third step 18 is provided at the connection between the inner side of the bridge of the nose 12 and the inner side of the tweezer handle body 11, and the third step 18 is located behind the connection between the bridge of the nose 12 and the tweezer handle body 11; the shape and size of the trunk 13 are adapted to the internal cavity of the tweezer head body 21.

[0037] like Figure 14 , Figure 15 and Figure 16 As shown, when the tweezers head 20 and the tweezers handle 10 are assembled together, the trunk portion 13 of the tweezers handle 10 is inserted into the internal cavity of the tweezers head body portion 21 of the tweezers head 20. The outer surface of the trunk portion 13 is in contact with the inner wall surface of the internal cavity of the tweezers head body portion 21. The wedge-shaped protrusion 14 is inserted into the window 24 of the cover portion 23. The rear end of the cover portion 23 extends into the through hole 15 of the bridge portion 12, and the rear end face of the wedge-shaped protrusion 14 is in contact with the cover portion 23. The rear sidewalls of the window 24 abut against each other, so that the cover 23 and the wedge-shaped protrusion 14 are engaged with each other. At this time, the inner side plate 211 of the tweezers body 21 and the inner side of the cover 23 are both in the same plane as the inner side of the tweezers handle body 11. The outer side plate 212 of the tweezers body 21 and the rear end faces of the two first arc-shaped plates 213 abut against the second step 17. The second step 17 limits the tweezers body 21.

[0038] It should be noted that the connection between the tweezers tip 20 and the tweezers handle 10 is achieved not only through the snap-fit ​​connection between the cap 23 and the wedge-shaped protrusion 14, but also through the insertion of the trunk portion 13 of the tweezers handle 10 into the internal cavity of the tweezers tip body 21 of the tweezers tip 20. Furthermore, the outer surface of the trunk portion 13 is in contact with the inner wall of the internal cavity of the tweezers tip body 21. Both of these factors contribute to the secure connection between the tweezers tip 20 and the tweezers handle 10. Therefore, compared to the connection between the tweezers tip and the tweezers handle relying solely on a snap-fit ​​connection, the tweezers bipolar electrocoagulator of this embodiment employs both a snap-fit ​​connection structure and an insertion connection structure where the front end of the tweezers handle is inserted into the internal cavity of the tweezers tip. This makes the connection between the tweezers tip and the tweezers handle more secure, preventing the tweezers tip and the tweezers handle from separating during use. The cap 23 can both snap onto the wedge-shaped protrusion 14 and detach from it under external force, thus facilitating the assembly and disassembly of the tweezers tip 20 and the tweezers handle 10.

[0039] Before use, connect the tweezers head 20 to the tweezers handle 10; after use, disassemble the tweezers head 20 from the tweezers handle 10 and discard the tweezers head 20. The method for disassembling the tweezers head 20 from the tweezers handle 10 is as follows: use a tool (such as a screwdriver) to insert into the through hole 15 and forcefully push outwards against the rear end of the cover portion 23, so that the wedge-shaped protrusion 14 disengages from the window 24 of the cover portion 23, thereby disassembling the tweezers head 20 from the tweezers handle 10.

[0040] In this embodiment, the forceps-type bipolar electrocoagulator has two forceps handles 10, the rear ends of which are electrically connected to two electrodes (not shown in the figure). Each pair of interconnected forceps heads 20 and forceps handles 10 are electrically conductive to each other. When energized, the front ends of the two forceps heads 20 form two electrode heads, and a strong current flows between them, thereby providing high-frequency electrical energy to the patient's diseased tissue. This causes the blood vessels between the two forceps heads to dehydrate and coagulate, achieving hemostasis. This forceps-type bipolar electrocoagulator is used in conjunction with high-frequency surgical equipment (not shown in the figure) for electrocoagulation of target tissues in non-endoscopic surgical procedures.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is impossible to exhaustively list all embodiments here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A forceps-type bipolar coagulator characterized by comprising: The forceps-type bipolar electrocoagulator comprises two forceps handles (10), two forceps heads (20) and a forceps tail connecting assembly (30); the two forceps handles (10) are identical and symmetrically arranged, and the two forceps heads (20) are identical and symmetrically arranged; the rear end of each forceps head (20) is detachably connected with the front end of a forceps handle (10), and the rear ends of the two forceps handles (10) are fixedly connected through the forceps tail connecting assembly (30), so that the two forceps handles (10) and the two forceps heads (20) integrally form a complete forceps; wherein the body parts of the two forceps handles (10) and the two forceps heads (20) are made of conductor material, and each pair of connected forceps head (20) and forceps handle (10) are electrically conductive to each other, and the surfaces of the two forceps handles (10) are provided with an insulating layer; the forceps tail connecting assembly (30) is an insulator, so that the two forceps handles (10) are insulated from each other; the detachable connection between the forceps head (20) and the forceps handle (10) adopts a double connection structure of buckle type connection and plug-in type connection to realize the firm connection between the forceps head (20) and the forceps handle (10); The forceps head (20) is in the shape of a half cone with a narrow front end and a wide rear end; the front end of the forceps head (20) is closed and the rear end is open, and the inside of the forceps head (20) is hollow; the forceps head (20) comprises a cover part (23) which is fixedly arranged at the rear end of the forceps head (20); the forceps handle (10) comprises a forceps handle body part (11), a bridge part (12) and an elephant trunk part (13); the bridge part (12) is in the shape of a trapezoid with a narrow front end and a wide rear end along the longitudinal direction, and the elephant trunk part (13) is in the shape of a half cone with a narrow front end and a wide rear end; the rear end of the bridge part (12) is fixedly connected with the front end of the forceps handle body part (11), and the rear end of the elephant trunk part (13) is fixedly connected with the front end of the bridge part (12); a wedge-shaped protrusion (14) is fixedly arranged on the inner side or the outer side of the bridge part (12), and the cover part (23) can be buckled with the wedge-shaped protrusion (14); the shape and size of the elephant trunk part (13) are matched with the internal cavity of the forceps head (20), so that the elephant trunk part (13) can be inserted into the internal cavity of the forceps head (20).

2. The forceps-type bipolar coagulator according to claim 1, characterized by The forceps head (20) further comprises a forceps head body part (21) and a tongue plate (22); the front end of the tongue plate (22) is fixedly connected with the rear end of the forceps head body part (21), and the rear end of the tongue plate (22) is fixedly connected with the front end of the cover part (23); the cover part (23) is in the shape of a plate with a window (24) at the center position, and the wedge-shaped protrusion (14) can pass into the window (24) of the cover part (23), so that the cover part (23) can be buckled with the wedge-shaped protrusion (14); the forceps head body part (21) is in the shape of a half cone and is hollow with a closed front end; the shape and size of the elephant trunk part (13) are matched with the internal cavity of the forceps head body part (21), so that the elephant trunk part (13) can be inserted into the internal cavity of the forceps head body part (21).

3. The forceps-type bipolar coagulator according to claim 2, characterized by The rear end of the elephant trunk portion (13) extends rearward along the outer side of the nose bridge portion (12) to the front end of the forceps handle body portion (11), and the rear end of the elephant trunk portion (13) is embedded in the interior of the nose bridge portion (12); a wedge-shaped protrusion (14) is fixedly arranged on the outer side (131) of the elephant trunk portion (13).

4. The forceps-type bipolar coagulator according to claim 3, characterized by The forceps head body portion (21) comprises an inner side plate (211) and an outer side plate (212), the front end of the inner side plate (211) is fixedly connected with the outer side plate (212), and the outer side plate (212) is arranged obliquely relative to the inner side plate (211), so that the forceps head body portion (21) is in a semi-conical shape; the inner side plate (211) is located in the axial section of the forceps head body portion (21), the outer side plate (212) extends along the generatrix direction of the forceps head body portion (21), and a semi-conical angle is formed between the outer side plate (212) and the inner side plate (211); the front end of the tongue plate (22) is fixedly connected with the rear end of the outer side plate (212) of the forceps head body portion (21). The two sides of the inner side plate (211) of the forceps head body portion (21) and the two sides of the outer side plate (212) are fixedly connected by two first arc-shaped plates (213), so that the inner side plate (211), the outer side plate (212) and the two first arc-shaped plates (213) enclose a cavity which is closed at the front end and the four sides and open at the rear end, and the rear ends of the two first arc-shaped plates (213) are flush with the rear end of the inner side plate (211); the two side edges of the outer side (131) of the elephant trunk portion (13) and the two rib side surfaces (132) are transitionally connected by arc-shaped transition surfaces (133), respectively.

5. The forceps-shaped bipolar coagulator according to claim 3, characterized by The rear end surface of the wedge-shaped protrusion (14) is perpendicular to the outer side (131) of the elephant trunk portion (13), and the wedge-shaped protrusion (14) is close to the front end of the forceps handle body portion (11); a through hole (15) penetrating through the elephant trunk portion (13) and the nose bridge portion (12) is arranged between the wedge-shaped protrusion (14) and the front end of the forceps handle body portion (11); the inner side surface of the nose bridge portion (12) and the inner side surface of the forceps handle body portion (11) are located in the same plane, and a first step portion (16) is arranged at the connection between the inner side surface (134) of the elephant trunk portion (13) and the inner side surface of the nose bridge portion (12); two second arc-shaped plates (25) are fixedly arranged on the two sides of the cover portion (23), respectively, and the two second arc-shaped plates (25) are mutually symmetrical and inwardly curved.

6. The forceps-type bipolar coagulator according to claim 4, characterized by The connection between the front end of the tongue plate (22) and the outer side plate (212) is located on the front side of the rear end surface of the inner side plate (211), and two first U-shaped grooves (26) are arranged between the two sides of the front end of the tongue plate (22) and the two first arc-shaped plates (213), respectively; the connection between the rear end of the tongue plate (22) and the cover portion (23) is located on the rear side of the rear end of the inner side plate (211), and two second U-shaped grooves (27) are arranged between the two sides of the rear end of the tongue plate (22) and the two second arc-shaped plates (25), respectively; the arrangement of the first U-shaped grooves (26) and the second U-shaped grooves (27) can reduce the strength of the tongue plate (22), so that the cover portion (23) fixedly connected with the tongue plate (22) has a moderate elastic movement range in the transverse direction.

7. The forceps-shaped bipolar coagulator according to claim 2, characterized by The wedge-shaped protrusion (14) is fixedly arranged on the inner side surface of the nose bridge portion (12).

8. The forceps-type bipolar coagulator according to claim 7, characterized by The forceps head body part (21) comprises an inner side plate (211) and an outer side plate (212), the front end of the inner side plate (211) is fixedly connected with the outer side plate (212), and the outer side plate (212) is arranged obliquely relative to the inner side plate (211), so that the forceps head body part (21) is in a half-conical shape; the inner side plate (211) is located in the axial section of the forceps head body part (21), the outer side plate (212) extends along the generatrix direction of the forceps head body part (21), and a half-conical angle is formed between the outer side plate (212) and the inner side plate (211); the front end of the tongue plate (22) is fixedly connected with the rear end of the inner side plate (211) of the forceps head body part (21); The two sides of the inner side plate (211) of the forceps head body part (21) and the two sides of the outer side plate (212) are fixedly connected through two first arc-shaped plates (213) respectively, so that the inner side plate (211), the outer side plate (212) and the two first arc-shaped plates (213) enclose a cavity which is closed at the front end and four sides and is open at the rear end, and the rear ends of the two first arc-shaped plates (213) are flush with the rear end of the outer side plate (212); the two side edges of the outer side surface (131) of the elephant trunk part (13) and the two rib side surfaces (132) are transitionally connected through arc-shaped transition surfaces (133) respectively.

9. The forceps-shaped bipolar coagulator according to claim 7, characterized by The rear end surface of the wedge-shaped protrusion (14) is perpendicular to the inner side surface of the bridge part (12), and the wedge-shaped protrusion (14) is close to the front end of the forceps handle body part (11); a through hole (15) penetrating through the bridge part (12) is arranged between the wedge-shaped protrusion (14) and the front end of the forceps handle body part (11); a second stepped part (17) is arranged at the connection between the bridge part (12) and the elephant trunk part (13); the inner side surface of the bridge part (12) and the inner side surface of the elephant trunk part (13) are located in the same plane, a third stepped part (18) is arranged at the connection between the inner side surface of the bridge part (12) and the inner side surface of the forceps handle body part (11), and the third stepped part (18) is located at the rear side of the connection between the bridge part (12) and the forceps handle body part (11).

10. The forceps-shaped bipolar coagulator according to claim 8, characterized by The connection between the front end of the tongue plate (22) and the inner side plate (211) of the forceps head body part (21) is located at the front side of the rear end surface of the outer side plate (212), two first U-shaped grooves (26) are arranged between the two sides of the front end of the tongue plate (22) and the two first arc-shaped plates (213) respectively; the connection between the rear end of the tongue plate (22) and the cover part (23) is located at the rear side of the rear end of the outer side plate (212), and second U-shaped grooves (27) are arranged at the two sides of the rear end of the tongue plate (22) respectively; the arrangement of the first U-shaped grooves (26) and the second U-shaped grooves (27) can reduce the strength of the tongue plate (22), so that the cover part (23) fixedly connected with the tongue plate (22) has a moderate elastic movement range in the transverse direction.

Images