Ceramic electrotome

Abstract

The utility model relates to a ceramic electrotome which comprises a movable clamp head and a fixed clamp head, and the movable clamp head comprises a movable clamp body and an electrode plate. The movable clamp body is made of zirconia ceramics; the movable clamp body comprises a working part and a connecting part, and the connecting part is rotationally connected with the fixed clamp head; the working part is provided with a piece cavity, an electrode piece is fixedly arranged in the piece cavity, and the electrode piece is provided with a lower cutter groove and a plurality of insulating parts used for abutting against the fixed tong head. According to the ceramic electrotome, the movable clamp head is designed into two parts, namely the movable clamp body and the electrode plate which are made of the zirconia ceramic materials, the zirconia ceramic can ensure the strength of the whole movable clamp head, meanwhile, the high-temperature-resistant, insulated and non-conductive capacity can be provided, the clamp head can be prevented from being damaged by high temperature generated in the using process, and the service life of the ceramic electrotome is prolonged. And the service life of the instrument is prolonged.

Description

Technical Field

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

[0002] Traditional electrosurgical Figure 1 As shown, it includes a movable pliers head and a fixed pliers head. The movable pliers head includes a pliers body 11, an electrode sheet 12 and an insulating layer 13. The pliers body 11 is made of metal to ensure the overall strength of the pliers head. The insulating layer 13 is fixed to the pliers body 11 by injection molding, and the electrode sheet 12 is fixed to the insulating layer 13 by snap-fitting. The fixed pliers head also includes a pliers body 11, an electrode sheet 12 and an insulating layer 13.

[0003] At present, since the assembly of the movable pliers head requires the processing of the pliers body, electrode sheets and the insulation layer formed by injection molding, the manufacturing process is complicated and the processing cost is high. In addition, the previous design of the pliers head will cause the insulation layer to occupy a large space, and the pliers head is not thick enough, resulting in insufficient strength of the pliers head. The same problem also exists for the fixed pliers head.

[0004] In summary, the existing electric knives have the problems of complex processing, high cost, insufficient strength and easy deformation. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a ceramic electric knife to solve the problems of a large number of parts, complex processing, insufficient strength and easy deformation of the movable clamp head in the electric knife.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a ceramic electric knife, comprising a movable clamp head and a fixed clamp head;

[0008] The movable clamp head comprises a movable clamp body and an electrode sheet;

[0009] The movable pliers body is made of zirconium oxide ceramics;

[0010] The movable pliers body comprises a working part and a connecting part, and the connecting part is rotatably connected to the fixed pliers head;

[0011] The working part is provided with a sheet cavity, an electrode sheet is fixedly arranged in the sheet cavity, and a lower knife groove and a plurality of insulating parts for abutting against a fixed clamp head are provided on the electrode sheet.

[0012] Furthermore, the movable clamp body is buckled and pressed on the electrode sheet through the sheet cavity, and is bonded and fixed to the electrode sheet by glue.

[0013] Furthermore, a plurality of connection holes are provided in the sheet cavity, and a plurality of connection posts are provided on the electrode sheet;

[0014] The connecting post is inserted into the connecting hole filled with glue to fix the connecting post and the connecting hole.

[0015] Furthermore, the connecting column has an L-shaped structure.

[0016] Furthermore, an upper knife groove is provided in the sheet cavity, and the upper knife groove corresponds vertically to the lower knife groove on the electrode sheet.

[0017] Furthermore, an insulating hole is provided on the electrode sheet, and the insulating member is fixed in the insulating hole.

[0018] Furthermore, the insulating member and the movable clamp body are an integral structure.

[0019] Furthermore, a wire groove is provided in the connecting portion, and the wire groove is connected to the sheet cavity;

[0020] The conductive wire of the electric knife passes through the wire slot and is welded to the electrode sheet in the sheet cavity.

[0021] Furthermore, the fixed clamp head includes a fixed clamp body, and the fixed clamp body is made of metal;

[0022] The fixed pliers body comprises a working part and a connecting part. The connecting part of the fixed pliers head is rotatably connected with the connecting part of the movable pliers head via a pin shaft. A plurality of protrusions matched with insulating parts are integrally formed on the working part of the fixed pliers body.

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

[0024] The ceramic electric knife of the utility model designs the movable clamp head into two parts, namely, the movable clamp body and the electrode sheet made of zirconium oxide ceramic material. The zirconium oxide ceramic can ensure the strength of the entire movable clamp head, and can also provide the ability of high temperature resistance, insulation and non-conductivity, which can prevent the high temperature generated during use from damaging the clamp head and increase the service life of the instrument.

[0025] The number of movable clamp heads is reduced to two, which saves costs and reduces manufacturing difficulty. 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 traditional electric knife;

[0028] Figure 2 This is a schematic diagram of the utility model ceramic electric knife;

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

[0030] Figure 4 It is a schematic diagram of the movable clamp body;

[0031] Figure 5 is a schematic diagram of the electrode sheet;

[0032] Figure 6 It is a schematic diagram of a fixed clamp head;

[0033] in,

[0034] 11. Clamp body, 12. Electrode sheet, 13. Insulation layer;

[0035] 2. movable clamp body, 21. sheet cavity, 22. upper knife groove, 23. connecting hole, 24. insulating part, 25. wire groove, 26. oblique guide groove;

[0036] 3. electrode sheet, 31. lower knife groove, 32. connecting column, 33. insulating hole;

[0037] 4. Fixing the clamp body, 41. Protrusion;

[0038] 51. Pin shaft, 52. Guide pin. DETAILED DESCRIPTION

[0039] 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.

[0040] The present application provides a ceramic electric knife, which is 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.

[0041] In order to solve the technical problems in the prior art that the movable clamp head of the electric knife has many parts, complex processing, insufficient strength and easy deformation, an embodiment of the present application provides a ceramic electric knife, which is described in detail below.

[0042] like Figures 2 to 6 As shown, a ceramic electric knife comprises a movable clamp head and a fixed clamp head;

[0043] The movable clamp head comprises a movable clamp body 2 and an electrode sheet 3;

[0044] The movable clamp body 2 is made of zirconium oxide ceramics;

[0045] The movable clamp body 2 includes a working part and a connecting part, and the connecting part is rotatably connected to the fixed clamp head;

[0046] The working part is provided with a sheet cavity 21 , in which an electrode sheet 3 is fixedly arranged, and the electrode sheet 3 is provided with a lower knife groove 31 and a plurality of insulating parts 24 for contacting with a fixed clamp head.

[0047] In this embodiment, the fixed clamp body 4 is changed from three parts in the past to one clamp body now, and the clamp body also serves as the electrode sheet 3, which greatly reduces the number of parts and reduces the difficulty of assembly.

[0048] Specifically, as an optional implementation in this embodiment, the movable clamp body 2 is buckled on the electrode sheet 3 through the sheet cavity 21, and is fixed to the electrode sheet 3 by glue.

[0049] Specifically, in order to improve the connection strength between the electrode sheet 3 and the movable clamp body 2, a plurality of connection holes 23 are provided in the sheet cavity 21, and a plurality of connection posts 32 are provided on the electrode sheet 3;

[0050] The connecting post 32 is inserted into the connecting hole 23 filled with glue to fix the connecting post 32 and the connecting hole 23 .

[0051] In this embodiment, it is necessary to ensure that there is a certain glue accommodating gap between the connecting column 32 and the connecting hole 23 , and the gap stores glue, so that the connecting column 32 and the movable clamp body 2 are glued together.

[0052] In order to further increase the surface area of ​​the connecting column 32 , the connecting column 32 is in an L-shaped structure.

[0053] More glue can be contained between the L-shaped connecting column 32 and the movable clamp body 2 to improve the connection strength.

[0054] In this embodiment, the number of the connecting pillars 32 and the number of the connecting holes 23 are both four.

[0055] Specifically, as an optional implementation in this embodiment, an upper knife groove 22 is provided in the sheet cavity 21 , and the upper knife groove 22 corresponds to the lower knife groove 31 on the electrode sheet 3 in a vertical manner.

[0056] The upper knife groove 22 and the lower knife groove 31 are combined into a complete knife groove for the blade to move forward and backward.

[0057] Specifically, as an optional implementation in this embodiment, an insulating hole 33 is opened on the electrode sheet 3 , and the insulating member 24 is fixed in the insulating hole 33 .

[0058] Specifically, in the preferred embodiment, the insulating member 24 is an integral structure with the movable jaw body 2 , that is, the insulating member 24 is also made of zirconia ceramics, and when the electrode sheet 3 is assembled into the sheet cavity 21 , the insulating member 24 is directly embedded into the insulating hole 33 .

[0059] After the insulating member 24 is matched, the surface of the insulating member 24 and the surface of the electrode sheet 3 remain flush.

[0060] In this embodiment, the insulating member 24 is a cylindrical structure, and the number of the insulating members 24 is four.

[0061] Specifically, as an optional implementation in this embodiment, a wire groove 25 is provided in the connection portion, and the wire groove 25 is connected to the sheet cavity 21 ; the conductive wire of the electric knife passes through the wire groove 25 and is welded to the electrode sheet 3 in the sheet cavity 21 .

[0062] The design of the wire slot 25 can avoid interference between the conductive wire and the pin 51 and avoid short circuit.

[0063] As another implementation of the insulating part 24 in this embodiment, the insulating hole 33 can also be a blind hole. The insulating hole 33 is not connected to the sheet cavity 21. In this case, the insulating part 24 is processed separately and can be insulating rubber. The insulating part 24 is directly fixed in the insulating hole 33.

[0064] For the connection part of the movable pliers body 2, in addition to the pin hole, an oblique guide groove 26 is also required. The oblique guide groove 26 is a conventional design on the movable pliers body 2. The oblique guide groove 26 is used to cooperate with the guide pin 52 on the knife seat to drive the movable pliers head to open and close.

[0065] In this embodiment, the fixed clamp head includes a fixed clamp body 4, and the fixed clamp body 4 is made of metal;

[0066] The fixed pliers body 4 comprises a working part and a connecting part. The connecting part of the fixed pliers head is rotatably connected with the connecting part of the movable pliers head via a pin shaft. A plurality of protrusions 41 for matching with the insulating parts 24 are integrally formed on the working part of the fixed pliers body 4 .

[0067] The working part of the fixed pliers head is also provided with a knife groove, the upper end of the blade moves from the knife groove of the movable pliers head, and the lower end moves from the knife groove of the fixed pliers head.

[0068] A straight guide groove is provided at the connection part of the fixed clamp head, and both ends of the guide pin 52 are inserted into the straight guide groove for longitudinal movement, cooperating with the oblique guide groove 26 on the movable clamp head to drive the movable clamp head to open and close.

[0069] The connecting portion of the movable clamp body 2 is in a U-shaped structure.

[0070] The entire movable pliers body 2 is supported by a zirconia ceramic mold. The movable pliers body 2 is provided with a sheet cavity 21, a connecting hole 23, a wire groove 25, an upper knife groove 22, a pin hole and an oblique guide groove 26. The movable pliers body 2 improves the strength of the entire movable pliers head and ensures the insulation performance, which can both insulate and improve the strength, and reduce the number of parts of the movable pliers head.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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 ceramic electric knife, comprising a movable clamp head and a fixed clamp head, characterized in that: The movable clamp head comprises a movable clamp body and an electrode sheet; The movable pliers body is made of zirconium oxide ceramics; The movable pliers body comprises a working part and a connecting part, and the connecting part is rotatably connected to the fixed pliers head; The working part is provided with a sheet cavity, an electrode sheet is fixedly arranged in the sheet cavity, and a lower knife groove and a plurality of insulating parts for abutting against a fixed clamp head are provided on the electrode sheet.

2. The ceramic electric knife according to claim 1, characterized in that: The movable clamp body is buckled and pressed on the electrode sheet through the sheet cavity, and is bonded and fixed to the electrode sheet by glue.

3. The ceramic electric knife according to claim 2, characterized in that: A plurality of connection holes are provided in the sheet cavity, and a plurality of connection posts are provided on the electrode sheet; The connecting post is inserted into the connecting hole filled with glue to fix the connecting post and the connecting hole.

4. The ceramic electric knife according to claim 3, characterized in that: The connecting column is in an L-shaped structure.

5. The ceramic electric knife according to claim 1, characterized in that: An upper knife groove is provided in the sheet cavity, and the upper knife groove corresponds to the lower knife groove on the electrode sheet in vertical direction.

6. The ceramic electric knife according to claim 1, characterized in that: An insulating hole is provided on the electrode sheet, and the insulating member is fixed in the insulating hole.

7. The ceramic electric knife according to claim 6, characterized in that: The insulating member and the movable clamp body are an integrated structure.

8. The ceramic electric knife according to claim 1, characterized in that: A wire groove is provided in the connecting portion, and the wire groove is connected to the sheet cavity; The conductive wire of the electric knife passes through the wire slot and is welded to the electrode sheet in the sheet cavity.

9. The ceramic electric knife according to claim 1, characterized in that: The fixed clamp head comprises a fixed clamp body, and the fixed clamp body is made of metal; The fixed pliers body comprises a working part and a connecting part. The connecting part of the fixed pliers head is rotatably connected with the connecting part of the movable pliers head via a pin shaft. A plurality of protrusions matched with insulating parts are integrally formed on the working part of the fixed pliers body.

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