High-frequency electrotome forceps

Abstract

The utility model relates to a high frequency electrotome clamp, which comprises a fixed clamp head and a movable clamp head, the movable clamp head comprises a first clamp body and an insulating part, the first clamp body comprises a front end first working part and a rear end first connecting part, and the insulating part is fixed on the first connecting part; the fixed plier head comprises a second plier body, and the second plier body comprises a second working part and a second connecting part; the first clamp body and the second clamp body are made of conductive metal materials. A conductive wire of the electrotome is welded and connected with the first connecting part, and a welding point is covered by the insulating part; the first connecting part of the movable plier head is in running fit with the second connecting part of the fixed plier head through the insulating part, and an insulating closed gap is formed between the first working part and the second working part. The movable tong head and the fixed tong head are redesigned, independent electrode plates are omitted respectively, and the tong head main body is used as the electrode plates, so that the manufacturing cost of the tong head is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a high-frequency electric knife forceps. Background Art

[0002] like Figure 1 The electric knife pliers shown include a fixed pliers head and a movable pliers head. The movable pliers head includes a pliers head body 11, an insulating layer 12 and an electrode sheet 13. The pliers head body 11 includes a front working part and a rear connecting part. The electrode sheet 13 is fixed to the inner side of the working part of the pliers head body 11, and the insulating layer 12 is wrapped around the outer side of the pliers head body. The structure of the fixed pliers head is similar to that of the movable pliers head. The rear connecting part of the movable pliers head is hinged to the connecting part of the fixed pliers head to form a rotating connection.

[0003] The problems that existed in the electric knife pliers heads in the past were: first, the conductive wire of the electric knife was welded to the pliers head body of the movable pliers head, and then the welding point was wrapped with an insulating layer. Since the conductive wire would pass through the rear end connection part, there would be a problem of wire short circuit; secondly, the pliers head consists of three components: the pliers head body + insulating layer + electrode sheet. There are many parts and the manufacturing cost is relatively high. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a high-frequency electric knife pliers to solve the problem that the conductive wire is welded to the front end of the movable pliers head in the previous electric knife pliers, resulting in the entire movable pliers head contacting the conductive wire during rotation, resulting in a wire short circuit.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is a high-frequency electric knife pliers, comprising a fixed pliers head and a movable pliers head, wherein the movable pliers head comprises a first pliers body and an insulating member, wherein the first pliers body comprises a first working portion at the front end and a first connecting portion at the rear end, and the insulating member is fixed on the first connecting portion;

[0007] The fixed pliers head comprises a second pliers body, and the second pliers body comprises a second working portion and a second connecting portion;

[0008] The first clamp body and the second clamp body are both made of conductive metal;

[0009] The conductive wire of the electric knife is welded to the first connecting part, and the welding point is covered by the insulating member;

[0010] The first connecting portion of the movable clamp head is rotationally matched with the second connecting portion of the fixed clamp head via an insulating member, and an insulating closed gap is formed between the first working portion and the second working portion.

[0011] Furthermore, the first connecting portion is in a U-shaped structure, so that the first connecting portion forms two first side edges, and the two first side edges are both provided with a pin hole and an oblique guide groove;

[0012] The insulating member comprises a first insulating portion and a second insulating portion, wherein the first insulating portion covers the inner and outer wall surfaces of the two first side edges of the first connecting portion, the inner wall of the pin shaft hole, and the inner wall of the inclined guide groove;

[0013] The second insulating portion covers the tail end of the first working portion.

[0014] Furthermore, a mounting pin is fixedly arranged in the first insulating part, and the mounting pin passes through the two pin shaft holes transversely and is fixed to the first insulating part covered in the pin shaft holes;

[0015] The two ends of the first insulating part are respectively connected to the fixed clamp head via mounting pins, so that the movable clamp head can rotate relative to the fixed clamp head.

[0016] Furthermore, a transverse positioning groove is provided at the tail end of the first working portion, and a transverse positioning convex strip is formed on the second insulating portion, and the positioning convex strip cooperates with the positioning groove.

[0017] Furthermore, a plurality of insulating pads are provided on the working surface of the first working part;

[0018] A plurality of protrusions corresponding to the insulating pads are arranged on the working surface of the second working part.

[0019] Furthermore, the second connecting portion has two sides respectively forming second side edges;

[0020] The two second side edges are provided with pin holes and longitudinal guide grooves;

[0021] A guide pin is fixedly arranged on the knife seat inside the electric knife, and two ends of the guide pin pass through the oblique guide groove and the longitudinal guide groove in sequence;

[0022] When the knife seat drives the guide pin to move forward and backward along the longitudinal guide groove, the guide pin pushes the movable clamp head to rotate through the oblique guide groove.

[0023] The beneficial effects of the utility model are:

[0024] The utility model provides a high-frequency electric knife pliers, wherein a movable pliers head and a fixed pliers head are redesigned, separate electrode sheets are respectively cancelled, and a pliers head body is used as an electrode sheet, thereby reducing the manufacturing cost of the pliers head. At the same time, the structure and installation of an insulating part on the movable pliers head are optimized, the insulating part is only installed at a first connecting part, and the movable pliers head is rotatably connected to the fixed pliers head through the insulating part, which can prevent the pliers head from being damaged by heat generated during use, and also prevent high voltage from breaking through the electrode.

[0025] The conductive wire is directly welded to the first connecting portion at the rear end of the movable clamp head to avoid the problem of short circuit between the conductive wire and the first connecting portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of a conventional movable clamp head;

[0028] Figure 2 This is the front view of the high-frequency electric knife forceps of the utility model;

[0029] Figure 3 and Figure 4 It is a schematic diagram of the movable clamp head;

[0030] Figure 5 is a schematic diagram of a first clamp body;

[0031] Figure 6 It is a schematic diagram of an insulating member;

[0032] Figure 7 It is a schematic diagram of fixing the pliers head and the knife holder;

[0033] Figure 8 This is a schematic diagram of the high-frequency electric knife forceps (connected with an outer tube) of the utility model;

[0034] Wherein: 11, clamp head body, 12, insulating layer, 13, electrode sheet;

[0035] 2. movable clamp head, 21. first clamp body, 211. pin shaft hole, 212. oblique guide groove, 213. positioning groove, 214. insulating pad; 22. first side;

[0036] 3. Insulating member, 31. First insulating portion, 32. Second insulating portion, 33. Positioning convex strip;

[0037] 4. Fixed clamp head; 41. Second clamp body; 411. Protrusion; 42. Second side edge;

[0038] 5. Conductive wire;

[0039] 6. Knife holder;

[0040] 7. External management;

[0041] 81. Mounting pin, 82. Guide pin. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The present application provides a high-frequency electric knife forceps, which are described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0044] In order to solve the technical problem that the conductive wire 5 in the electric knife pliers is welded to the front end of the movable clamp head 2 in the prior art, causing the entire movable clamp head 2 to contact the conductive wire 5 during rotation, resulting in a wire short circuit, an embodiment of the present application provides a high-frequency electric knife pliers. Detailed description is given below.

[0045] like Figures 2 to 8 As shown, a high-frequency electric knife pliers comprises a fixed pliers head 4 and a movable pliers head 2, wherein the movable pliers head 2 comprises a first pliers body 21 and an insulating member 3, wherein the first pliers body 21 comprises a first working portion at the front end and a first connecting portion at the rear end, and the insulating member 3 is fixed on the first connecting portion;

[0046] The fixed clamp head 4 includes a second clamp body 41, and the second clamp body 41 includes a second working portion and a second connecting portion;

[0047] The first clamp body 21 and the second clamp body 41 are both made of conductive metal;

[0048] The conductive wire 5 of the electric knife is welded to the first connecting part, and the welding point is covered by the insulating member 3;

[0049] The first connection portion of the movable clamp head 2 is rotationally matched with the second connection portion of the fixed clamp head 4 via the insulating member 3, and an insulating closed gap is formed between the first working portion and the second working portion.

[0050] Specifically, as an optional implementation in this embodiment, Figure 6 As shown, the first connecting portion is in a U-shaped structure; so that the first connecting portion forms two first side edges 22, and the two first side edges 22 are both provided with a pin hole 211 and an inclined guide groove 212;

[0051] The insulating member 3 includes a first insulating portion 31 and a second insulating portion 32. The first insulating portion 31 covers the inner and outer wall surfaces of the two first side edges 22 of the first connecting portion, the inner wall of the pin shaft hole 211 and the inner wall of the inclined guide groove 212.

[0052] The second insulating portion 32 covers the tail end of the first working portion.

[0053] In this embodiment, the insulating member 3 is made of insulating plastic and is fixed on the movable clamp head 2 by injection molding.

[0054] In this embodiment, the welding point is located at the bottom of the U-shaped groove in the first connecting portion. After the conductive wire 5 is welded to the first connecting portion, the first clamp body 21 is coated with rubber.

[0055] Specifically, as an optional implementation in this embodiment, Figure 3 Figure 4 As shown, a mounting pin 81 is fixedly disposed in the first insulating portion 31 , and the mounting pin 81 passes through two pin shaft holes 211 transversely and is fixed to the first insulating portion 31 covered in the pin shaft holes 211 ;

[0056] The two ends of the first insulating portion 31 are respectively connected to the fixed clamp head 4 via mounting pins 81 , so that the movable clamp head 2 can rotate relative to the fixed clamp head 4 .

[0057] In this embodiment, the mounting pin 81 is a metal part, which is transversely fixed in the first insulating portion 31. An insulating material is present between the mounting pin 81 and the first connecting portion of the movable clamp head 2, thereby preventing a short circuit between the movable clamp head 2 and the fixed clamp head 4 through the mounting pin 81.

[0058] Specifically, as an optional implementation in this embodiment, Figure 5 Figure 6 As shown, a transverse positioning groove 213 is formed at the tail end of the first working portion, and a transverse positioning convex strip 33 is formed on the second insulating portion 32 , and the positioning convex strip 33 cooperates with the positioning groove 213 .

[0059] In this embodiment, the cross section of the positioning groove 213 is semicircular, and the cross section of the positioning ridge 33 is also semicircular. The second insulating portion 32 cooperates with the positioning groove 213 through the positioning ridge 33 to improve the structural stability of the insulating member 3 on the movable clamp head 2.

[0060] Specifically, as an optional implementation in this embodiment, Figure 4 As shown, a plurality of insulating pads 214 are provided on the working surface of the first working part;

[0061] A plurality of protrusions 411 corresponding to the insulating spacers 214 are disposed on the working surface of the second working portion.

[0062] Specifically, an embedding hole is provided on the first working portion, and the insulating spacer 214 is embedded in the hole, so that the insulating spacer 214 is fixed on the first working portion.

[0063] The protrusion 411 is integrally formed on the second working portion.

[0064] Specifically, as an optional implementation in this embodiment, Figure 7 As shown, the second side edges 42 are respectively formed on both sides of the second connecting portion;

[0065] The two second side edges 42 are both provided with a pin hole 211 and a longitudinal guide groove;

[0066] A guide pin 82 is fixedly arranged on the knife seat 6 inside the electric knife, and two ends of the guide pin 82 pass through the oblique guide groove 212 and the longitudinal guide groove in sequence;

[0067] When the knife holder 6 drives the guide pin 82 to move forward and backward along the longitudinal guide groove, the guide pin 82 pushes the movable clamp head 2 to rotate through the oblique guide groove 212.

[0068] In this embodiment, corresponding knife grooves are provided on the working surfaces of the first clamp body 21 and the second clamp body 41 , and the upper and lower knife grooves are used to guide the movement of the blades in the electric knife.

[0069] A chamber for the knife holder 6 to work is provided in the second connecting portion of the second pliers body 41 , that is, between the two second side edges 42 . The knife holder 6 moves forward and backward on the second pliers body 41 . The knife holder 6 moves forward and backward longitudinally, driving the guide pin 82 to move forward and backward longitudinally.

[0070] In addition to the above-mentioned components, the high-frequency electric knife forceps includes an outer tube 7, a handle assembly, etc. The second connecting portion of the fixed clamp head 4 is connected to the outer tube 7 in addition to being connected to the movable clamp head 2, and the entire clamp head is installed at the front end of the outer tube 7 through the fixed clamp head 4.

[0071] The high-frequency electric knife pliers of this embodiment have been redesigned to eliminate separate electrode sheets for the movable pliers head 2 and the fixed pliers head 4, and the pliers head body is used as the electrode sheet, thereby reducing the manufacturing cost of the pliers head; at the same time, the structure and installation of the insulating member 3 on the movable pliers head 2 are optimized, and the insulating member 3 is only installed at the first connecting part. The movable pliers head 2 is rotatably connected to the fixed pliers head 4 through the insulating member 3, which can prevent the pliers head from being damaged by heat generated during use, and also prevent high voltage from breaking through the electrode.

[0072] When the high-frequency electric knife forceps is in operation, the movable forceps head 2 clamps the human tissue between the insulated closed gap, and the current of the conductive wire 5 passes through the first forceps body 21 and the human tissue to the second forceps body 41. When connected to the power supply, the first forceps body 21 and the second forceps body 41 are energized to generate heat to thermally coagulate the human tissue, and then push the knife seat 6 forward, and the blade cuts the electrocoagulated human tissue.

[0073] In the high-frequency electric knife pliers of this embodiment, the insulating part 3 on the movable pliers head 2 does not need to be covered with rubber as before, thereby reducing the coverage area of ​​the insulating part 3 on the movable pliers head 2. Now the insulating part 3 is only fixed at the rear end of the movable pliers head 2, and the insulation position is more targeted. Because the conductive wire 5 is now also connected to the rear end of the movable pliers head 2, the welding point is directly covered by the insulating cover. At the same time, by fixing the mounting pin 81 on the insulating part 3, the insulation between the connecting part of the movable pliers head 2 and the connecting part of the fixed pliers body is ensured.

[0074] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0075] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0077] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0078] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0079] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0080] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A high-frequency electric knife pliers, comprising a fixed pliers head (4) and a movable pliers head (2), characterized in that: The movable clamp head (2) comprises a first clamp body (21) and an insulating member (3), wherein the first clamp body (21) comprises a first working portion at the front end and a first connecting portion at the rear end, and the insulating member (3) is fixed on the first connecting portion; The fixed pliers head (4) comprises a second pliers body (41), and the second pliers body (41) comprises a second working portion and a second connecting portion; The first clamp body (21) and the second clamp body (41) are both made of conductive metal; The conductive wire (5) of the electric knife is connected to the first connecting portion by welding, and the welding point is covered by the insulating member (3); The first connection part of the movable clamp head (2) is rotatably matched with the second connection part of the fixed clamp head (4) via the insulating member (3), and an insulating closed gap is formed between the first working part and the second working part.

2. The high-frequency electric knife forceps according to claim 1, characterized in that: The first connecting portion is in a U-shaped structure, so that the first connecting portion forms two first side edges (22), and the two first side edges (22) are both provided with a pin hole (211) and an inclined guide groove (212); The insulating member (3) comprises a first insulating portion (31) and a second insulating portion (32), wherein the first insulating portion (31) covers the inner and outer wall surfaces of the two first side edges (22) of the first connecting portion, the inner wall of the pin shaft hole (211), and the inner wall of the inclined guide groove (212); The second insulating portion (32) covers the tail end of the first working portion.

3. The high-frequency electric knife forceps according to claim 2, characterized in that: A mounting pin (81) is fixedly arranged in the first insulating portion (31), and the mounting pin (81) passes through the two pin shaft holes (211) transversely and is fixed to the first insulating portion (31) enclosed in the pin shaft holes (211); The two ends of the first insulating portion (31) are respectively connected to the fixed clamp head (4) via mounting pins (81) so that the movable clamp head (2) can rotate relative to the fixed clamp head (4).

4. The high-frequency electric knife forceps according to claim 2, characterized in that: A transverse positioning groove (213) is provided at the tail end of the first working part, and a transverse positioning convex strip (33) is formed on the second insulating part (32), wherein the positioning convex strip (33) cooperates with the positioning groove (213).

5. The high-frequency electric knife forceps according to claim 1, characterized in that: A plurality of insulating pads (214) are arranged on the working surface of the first working part; A plurality of protrusions (411) corresponding to the insulating pads (214) are arranged on the working surface of the second working part; The first working part abuts against the protrusion (411) on the second working part via the insulating spacer (214) to form the insulating closed gap.

6. The high-frequency electric knife forceps according to claim 5, characterized in that: Second side edges (42) are respectively formed on both sides of the second connecting portion; The two second side edges (42) are both provided with a pin hole (211) and a longitudinal guide groove; A guide pin (82) is fixedly arranged on the inner knife seat (6) of the electric knife, and two ends of the guide pin (82) pass through the oblique guide groove (212) and the longitudinal guide groove in sequence; When the knife seat (6) drives the guide pin (82) to move forward and backward along the longitudinal guide groove, the guide pin (82) pushes the movable clamp head (2) to rotate through the oblique guide groove (212).

Images