CN211796840U

CN211796840U - Square tungsten filament electrode structure and operation electrode

Info

Publication number: CN211796840U
Application number: CN201921881997.0U
Authority: CN
Inventors: 任任; 韩坤; 眭加珍
Original assignee: CATHAY MANUFACTURING CORP
Current assignee: CATHAY MANUFACTURING CORP
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-10-30
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a square tungsten filament electrode structure and an operation electrode, belonging to the field of medical instruments, wherein the square tungsten filament electrode structure comprises a conductive rod, the left end of the conductive rod is provided with a connecting handle, the connecting handle comprises a handle body and two fork heads, and the two fork heads are respectively formed at the two sides of the left end of the handle body; a tungsten filament is connected between the two fork heads, the surface of the tungsten filament is smooth, the tungsten filament comprises two parallel sections positioned in the same plane and a vertical section connected between the two parallel sections, and the plane of the tungsten filament is superposed with the axis of the conducting rod; the length of the vertical section is the same as that of the parallel section; all be provided with the insulating layer on conducting rod, the connection handle, the right-hand member of the outstanding insulating layer of right-hand member of conducting rod, the right-hand member shaping of insulating layer has non-circular connecting portion, and the insulating layer surface still is equipped with non-slip portion. The utility model has the advantages of simple structure and reasonable design, both have the effect that keeps mechanical strength under the high temperature environment, still have the effect that is suitable for in narrow and small space.

Description

Square tungsten filament electrode structure and operation electrode

Technical Field

The utility model relates to the field of medical equipment, in particular to square tungsten filament electrode structure and operation electrode.

Background

The operation electrode is also called as an electric knife pen, is a common minimally invasive instrument used in the surgical operation process of hospitals, is applied to clinic from 1920 years, and is gradually one of important modern medical equipment in an operation room at present. The operation electrode is an electrosurgical energy instrument, belongs to an operation instrument, has the functions of separation and cutting, and also has the functions of blood coagulation and hemostasis, gradually replaces the traditional scalpel in the operation, and is generally applied clinically.

Generally, the electric knife pen comprises a shell for holding and an electrode structure installed on the shell, a power supply wiring and various control switches are generally arranged on the shell, the electrode structure comprises an electrode knife head and a knife holder and other structures used for connecting the electrode knife head to the shell, when the electric knife pen is used, the electrode structure is installed on the shell, the electrode knife head is connected with the power supply, and then the working mode of the electrode knife head is controlled through the control switches to perform an operation.

For example, chinese utility model patent publication No. CN208958321U, chinese utility model patent publication No. CN208756154U, and chinese utility model patent publication No. CN208974094U all disclose an operation electrode.

However, the electrode tip of the electrode structure in the above patent is likely to be softened when it is operated in a high-temperature environment, and it is difficult to ensure the mechanical strength.

Meanwhile, when the electrode structure needs to be inserted into a narrow space for tissue excision, the electrode bit in the electrode structure is difficult to perform surgery, and large extra tissues need to be excised usually, so that a large wound is caused.

SUMMERY OF THE UTILITY MODEL

Electrode knife head high temperature that exists to prior art softens easily, mechanical strength is low and be not suitable for stretching into narrow and small space and carry out the problem that the excision was organized, the utility model aims to provide a square tungsten filament electrode structure.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a square tungsten wire electrode structure comprises a conductive rod, wherein a connecting handle is arranged at the left end of the conductive rod, the connecting handle comprises a handle body and two fork heads, the two fork heads are respectively formed on two sides of the left end of the handle body, and the two fork heads are symmetrical about the axis of the conductive rod; a tungsten wire is connected between the two fork heads, the surface of the tungsten wire is smooth, the tungsten wire comprises two parallel sections positioned in the same plane and a vertical section connected between the two parallel sections, and the plane of the tungsten wire is overlapped with the axis of the conducting rod; the length of the vertical section is the same as that of the parallel section, the parallel section and the vertical section are integrally formed, the two parallel sections are respectively connected to the two fork heads, the parallel sections are parallel to the conductive rod, and the vertical section is perpendicular to the conductive rod; the anti-skidding type conductive pole is characterized in that an insulating sleeve is sleeved on the outer wall of the conductive pole, an insulating layer is arranged on the connecting handle, the right end of the conductive pole protrudes out of the right end of the insulating sleeve, a non-circular connecting portion is formed at the right end of the insulating sleeve, and an anti-skidding portion is further arranged on the surface of the insulating sleeve.

Preferably, the thickness of the connecting handle is gradually reduced from the right end to the left end, the right end of the connecting handle is smoothly connected with the left end of the conducting rod, the connecting handle comprises an inclined upper handle inclined plane and an inclined lower handle inclined plane, and the upper handle inclined plane and the lower handle inclined plane are symmetrical about a plane where the tungsten filament is located.

Preferably, the included angle between the upper handle inclined plane and the lower handle inclined plane is 20 degrees.

Preferably, the length of each of the vertical section and the parallel section is 10 mm.

Preferably, the diameter of the tungsten wire is 0.25 mm.

Preferably, the outer wall of the connecting part is regular hexagonal.

Preferably, the insulating layer and the insulating sleeve are both formed by ABS injection molding.

Preferably, the anti-slip part is an annular flange, an anti-slip pattern or an anti-slip bump.

Preferably, the annular flange has six paths, and the six paths of annular flanges are uniformly distributed at intervals.

The utility model also discloses an operation electrode, including the casing, still include foretell square tungsten filament electrode structure, be provided with on the casing with the mounting hole of junction looks adaptation.

By adopting the technical scheme, the arrangement of the tungsten wire which is arranged in the square shape on the connecting handle enables the electrode structure of the utility model to form a square working area, wherein the tungsten wire is used as a working part, the material of the tungsten wire has the high temperature resistance characteristic, and the mechanical strength of the tungsten wire can still be kept from being reduced under the high temperature environment, so that the tungsten wire can not be bent and broken when cutting tissues; the arrangement of the smooth surface characteristics of the tungsten filament ensures that the tungsten filament can not generate the dragging phenomenon when cutting the tissue.

The tungsten filament of the square shape of setting at the conducting rod tip, it not only can be applicable to traditional big, little operation, can also stretch into narrow and small space under the operation of conducting rod and carry out the operation in, is applicable to minimal access surgery and meticulous operation, for example plastic surgery, dermatology and gynecologic operation, the utility model discloses an electrode structure all has good result of use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a square tungsten wire electrode structure of the present invention;

fig. 2 is a top view of the square tungsten wire electrode structure of the present invention.

In the figure, 1-conductive rod, 2-connecting handle, 21-handle body, 22-fork, 3-tungsten filament, 31-parallel segment, 32-vertical segment, 4-insulating layer, 41-connecting part and 42-antiskid part.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship based on the description of the structure of the present invention shown in fig. 1, and are only for convenience of description of the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.

In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in relation to the present scheme in specific terms according to the general idea of the present invention.

As shown in fig. 1 and 2, a square tungsten wire electrode structure includes a conductive rod 1, wherein the conductive rod 1 is a cylinder, and is made of stainless steel with a diameter of 2.36 mm.

The left end of the conducting rod 1 is connected with a connecting handle 2, the connecting handle 2 is made of stainless steel, the connecting handle 2 comprises a handle body 21 and two fork heads 22, the two fork heads 22 are respectively formed on two sides of the left end of the handle body 21, and the two fork heads 22 are opposite. Meanwhile, the thickness of the connecting handle 2 is gradually reduced from the right end to the left end of the connecting handle, and the right end of the connecting handle 2 is smoothly connected with the left end of the conducting rod 1; it can be understood that the connecting handle 2 includes an inclined upper handle inclined plane and an inclined lower handle inclined plane, the upper handle inclined plane and the lower handle inclined plane are symmetrically arranged, and a symmetrical plane of the upper handle inclined plane and the lower handle inclined plane is a central axis plane (a plane on which an axis is located) of the conducting rod 1.

In this embodiment, the angle between the upper handle slope and the lower handle slope is set to 20 °, as shown by the angle a in fig. 2, and the total length of the conductive rod 1 and the connecting handle 2 connected to the left end thereof is set to 130 mm.

Generally, the connecting handle 2 and the conductive rod 1 are integrally formed.

The tungsten wire 3 is connected between the two fork heads 22, and the surface of the tungsten wire 3 is smooth. The tungsten wire 3 includes two parallel sections 31 located in the same plane and a vertical section 32 connected between the two parallel sections 31, and the parallel sections 31 and the vertical section 32 are integrally formed. The two parallel sections 31 are connected to the two forks 22, respectively, and the parallel sections 31 are parallel to the conductive rod 1, and the vertical section 32 is perpendicular to the conductive rod 1. While the length of the vertical section 32 is set to be the same as the length of the parallel section 31.

In this embodiment, the plane of the tungsten filament 3 coincides with the axis of the conductive rod 1, that is, the plane of the tungsten filament 3 coincides with the symmetry plane and the central axis plane.

In this embodiment, the lengths of the vertical section 32 and the parallel section 31 are both 10mm, so that the area surrounded by the tungsten filament 3 is square; in this embodiment, the diameter of the tungsten wire 3 is set to 0.25 mm.

The tungsten wire 3 is made of a high-temperature-resistant material, and has high mechanical strength in a high-temperature environment, so that the tungsten wire can be prevented from being broken and deformed when being used for cutting tissues; the smooth surface of the tungsten filament 3 has the function of preventing the tissues from being adhered and pulled during cutting. This makes the operation wound as small as possible, and at the same time, makes the operation time as short as possible, reduces the probability of postoperative infection, and makes postoperative recovery fast.

In the above-described structure, only the tungsten wire 3 is used as a working member, and therefore, both the conductive rod 1 and the stem 2 need to be insulated to prevent damage to the tissue.

Therefore, in this embodiment, the conductive rod 1 is sleeved with the insulating sleeve 4, the connecting handle 2 is provided with the insulating layer, the insulating sleeve 4 is connected with the insulating layer to ensure that the connecting handle 2 and the conductive rod 1 are completely wrapped, the insulating sleeve 4 and the insulating layer are both formed by injection molding of ABS or thermoplastic molding, and in this embodiment, the injection molding of ABS is preferred, so that the insulating sleeve 4 is an injection molding of ABS tube correspondingly.

In order to ensure that the conducting rod 1 can be normally connected with an external circuit, the right end of the conducting rod 1 protrudes out of the right end of the insulating sleeve 4, and the length of the conducting rod 1 protruding out of the insulating sleeve 4 is preferably 17mm in the embodiment.

In this embodiment, when the insulating sleeve 4 is formed, the outer side wall of the right end of the insulating sleeve is provided with a non-circular connecting portion 41, the connecting portion 41 is used for installing the electrode structure of the present invention on an electric knife pen, and the outer wall of the connecting portion 41 is provided with a regular hexagon; meanwhile, when the insulating sleeve 4 is molded, the surface of the insulating sleeve is further provided with the anti-slip part 42, and the anti-slip part 42 can be an annular flange, an anti-slip pattern or an anti-slip bump, but in the embodiment, the anti-slip part 42 is provided with the annular flange, and the annular flange has six lines, and the six annular flanges are uniformly distributed at intervals.

The utility model also discloses an operation electrode, also known as electric knife pen, it includes the casing, still includes above-mentioned square tungsten filament electrode structure, be provided with on the casing with the mounting hole of connecting portion 41 looks adaptation, foretell square tungsten filament electrode structure is connected to on the casing through connecting portion 41 on its insulating layer.

During the use, in installing square tungsten filament electrode structure the casing of electrotome pen, switch on the power supply, handheld casing, stretch into the narrow and small tissue space of waiting to perform the operation with tungsten filament 3 of its terminal square shape through conducting rod 1, for example, will treat that the tissue of excision embolias in the square region that tungsten filament 3 encloses, treat that square tungsten filament 3 reaches behind the working standard, only need through casing pulling conducting rod 1, drive 3 movements of tungsten filament and can excise the tissue, easy operation is convenient. The operation instrument is not only suitable for operation in a narrow space, but also suitable for operations needing to operate surface tissues in dermatology, plastic surgery and the like.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A square tungsten wire electrode structure is characterized in that: the left end of the conductive rod is provided with a connecting handle, the connecting handle comprises a handle body and two fork heads, the two fork heads are respectively formed on two sides of the left end of the handle body, and the two fork heads are symmetrical about the axis of the conductive rod; a tungsten wire is connected between the two fork heads, the surface of the tungsten wire is smooth, the tungsten wire comprises two parallel sections positioned in the same plane and a vertical section connected between the two parallel sections, and the plane of the tungsten wire is overlapped with the axis of the conducting rod; the length of the vertical section is the same as that of the parallel section, the parallel section and the vertical section are integrally formed, the two parallel sections are respectively connected to the two fork heads, the parallel sections are parallel to the conductive rod, and the vertical section is perpendicular to the conductive rod; the anti-skidding type conductive pole is characterized in that an insulating sleeve is sleeved on the outer wall of the conductive pole, an insulating layer is arranged on the connecting handle, the right end of the conductive pole protrudes out of the right end of the insulating sleeve, a non-circular connecting portion is formed at the right end of the insulating sleeve, and an anti-skidding portion is further arranged on the surface of the insulating sleeve.

2. The square tungsten wire electrode structure of claim 1, wherein: the thickness of the connecting handle is gradually reduced from the right end to the left end, the right end of the connecting handle is smoothly connected with the left end of the conducting rod, the connecting handle comprises an inclined upper handle inclined plane and an inclined lower handle inclined plane, and the inclined upper handle inclined plane and the inclined lower handle inclined plane are symmetrical about a plane where the tungsten filament is located.

3. The square tungsten wire electrode structure of claim 2, wherein: the included angle between the inclined plane of the upper handle and the inclined plane of the lower handle is 20 degrees.

4. The square tungsten wire electrode structure of claim 1, wherein: the length of the vertical section and the length of the parallel section are both 10 mm.

5. The square tungsten wire electrode structure of claim 4, wherein: the diameter of the tungsten wire is 0.25 mm.

6. The square tungsten wire electrode structure of claim 1, wherein: the outer wall of the connecting part is regular hexagon.

7. The square tungsten wire electrode structure of claim 1, wherein: the insulating layer and the insulating sleeve are both formed by ABS injection molding.

8. The square tungsten wire electrode structure of claim 1, wherein: the anti-skid part is an annular flange, an anti-skid pattern or an anti-skid bump.

9. The square tungsten wire electrode structure of claim 8, wherein: six annular flanges are arranged on the annular flange, and the six annular flanges are uniformly distributed at intervals.

10. A surgical electrode comprising a housing, characterized in that: the electrode structure of the square tungsten wire according to any one of claims 1 to 9, wherein the housing is provided with a mounting hole adapted to the connecting portion.