CN211583473U

CN211583473U - Annular electrode structure and operation electrode

Info

Publication number: CN211583473U
Application number: CN201921883043.3U
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: 2020-09-29
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses an annular electrode structure and an operation electrode, which belong to the field of medical instruments, wherein the annular 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 arranged on the two sides of the left end of the handle body in a right way; a tungsten filament cutter head made of tungsten filaments with smooth surfaces is connected between the two fork heads, the tungsten filament cutter head comprises two parallel sections positioned in the same plane and an arc section connected between the two parallel sections, the two parallel sections are opposite to each other and are parallel to the conducting rod, the arc section protrudes towards the direction back from the parallel sections, and the arc section and the parallel sections are in smooth transition; the outer wall of the conducting rod is sleeved with an insulating sleeve, the connecting handle is provided with an insulating layer, the insulating sleeve is connected with the insulating layer, and the right end of the insulating sleeve is formed with a non-circular connecting 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

Annular electrode structure and operation electrode

Technical Field

The utility model relates to the field of medical equipment, in particular to annular 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, the electrode tool bit of the electrode structure is in a shape imitating a traditional scalpel, the tissue cutting mode of the electrode tool bit is the same as that of the traditional scalpel, the tissue is fixed by one hand, the tissue to be cut is protruded, and the electrode tool bit is controlled by the other hand to cut.

However, in a narrow and inconvenient place, such as a fine operation and a minimally invasive operation in orthopedics, dermatology and gynecology, the electrode bit of the electrode structure greatly increases the operation difficulty when being used, which leads to a large increase of operation time, and even a large amount of extra tissue needs to be cut off, which results in a large wound.

In addition, the electrode tips of the above-described electrode structures typically have sharp points that are prone to accidental scratching when they contact tissue.

SUMMERY OF THE UTILITY MODEL

To the electrode knife head that prior art exists soften easily, mechanical strength is low, be unsuitable for stretching into narrow and small space and carry out meticulous operation and minimal access surgery and the problem of easy fish tail tissue under the high temperature, the utility model aims to provide an annular electrode structure.

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

a ring-shaped 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, and the two fork heads are arranged on two sides of the left end of the handle body in a manner of being opposite to each other; a tungsten filament cutter head made of tungsten filaments with smooth surfaces is connected between the two fork heads, the tungsten filament cutter head comprises two parallel sections located in the same plane and an arc section connected between the two parallel sections, the plane where the tungsten filament cutter head is located is overlapped with the axis of the conducting rod, the parallel sections and the arc section are integrally formed, the two parallel sections are respectively connected to the two fork heads, the two parallel sections are opposite to and parallel to the conducting rod, the arc section protrudes in the direction away from the parallel sections, and the arc section and the parallel sections are in smooth transition; the anti-skid device is characterized in that an insulating sleeve is sleeved on the outer wall of the conducting rod, an insulating layer is arranged on the connecting handle, the insulating sleeve is connected with the insulating layer, the right end of the conducting rod 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-skid 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 and the width of the tungsten wire tool bit are both 15 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 annular 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 filament cutter head which is arranged into the annular shape on the connecting handle enables the electrode structure of the utility model to form a closed working area which is surrounded by tungsten filaments at the end of the conducting rod, wherein the tungsten filaments are used as a cutting tool after being electrified, so after the conducting rod is operated to send the tungsten filament cutter head into a narrow area, tissues with cutting are only required to be sleeved into the cutting area which is surrounded by the tungsten filament cutter head, and then the conducting rod is pulled to cut off the sleeved tissues through the tungsten filaments, the visible cutting operation is simple, other auxiliary tools are not needed, and the intact tissues are not damaged, thus the electrode structure is suitable for fine surgery and minimally invasive surgery;

the tungsten filament cutter head made of tungsten filaments has high temperature resistance, and can still keep the mechanical strength of the tungsten filament cutter head from being reduced under a high-temperature environment, so that the tungsten filaments can not be bent and broken when cutting tissues;

the smooth characteristic of tungsten filament surface and smooth transition's arc section and parallel segment's setting make the tungsten filament can not take place the burr when cutting the tissue and drag the phenomenon of tissue on the one hand, and on the other hand has avoided the unexpected fish tail condition of tissue of point portion of tungsten filament tool bit to take place again.

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 ring electrode structure according to the present invention;

fig. 2 is a top view of the ring electrode structure of the present invention.

In the figure, 1-a conductive rod, 2-a connecting handle, 21-a handle body, 22-a fork head, 23-an upper handle inclined plane, 24-a lower handle inclined plane, 3-a tungsten filament cutter head, 31-a parallel section, 32-an arc section, 4-an insulating sleeve, 41-a connecting part and 42-an anti-skid 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, an annular electrode structure includes a conductive rod 1, the conductive rod 1 is a cylinder, the conductive rod is made of stainless steel, the left end of the conductive rod 1 is connected with a connecting handle 2, the connecting handle 2 is also made of stainless steel, the connecting handle 2 includes a handle body 21 and two fork heads 22, the right end of the connecting handle 2 is connected with the left end of the conductive rod 1 in a smooth manner, and the two fork heads 22 are formed on two sides of the left end of the handle body 21 in a facing manner, it can be understood that the connecting handle 2 is a Y-shape as a whole. Generally, the connecting handle 2 and the conductive rod 1 are integrally formed.

The thickness that this embodiment set up the stem 2 reduces gradually from its right-hand member to its left end, and that is, the one end thickness that the conductive rod 1 was connected to the stem 2 is great, and along with the stem 2 keeps away from the conductive rod 1, its thickness then constantly reduces, and generally sees, the stem 2 presents the platykurtic of thickness gradual change. It can be understood that the connecting handle 2 comprises an inclined upper handle inclined surface 23 and an inclined lower handle inclined surface 24, the upper handle inclined surface 23 and the lower handle inclined surface 24 are symmetrically arranged, and the symmetrical plane of the upper handle inclined surface 23 and the lower handle inclined surface 24 is the central axis plane of the conducting rod 1.

In this embodiment, the angle between the upper shank bevel 23 and the lower shank bevel 24 of the stem 2 is set to 20 °, as shown by the angle a in fig. 2. The connecting handle 2 is provided with a tungsten filament cutter head 3, and the tungsten filament cutter head 3 is made of tungsten filaments with smooth surfaces. The tungsten filament cutter head 3 comprises two parallel sections 31 located in the same plane and an arc section 32 connected between the two parallel sections 31, and the two parallel sections 31 and the arc section 32 are integrally formed. The two parallel sections 31 are respectively connected to the two branches 22, the two parallel sections 31 are opposite to each other, and the parallel sections 31 are parallel to the conducting rod 1, the arc section 32 is protruded or bent in a direction away from the parallel sections 31, and the arc section 32 and the parallel sections 31 are arranged in a smooth transition.

In this embodiment, the plane of the tungsten filament cutter head 3 coincides with the axis of the conducting rod 1, that is, the plane of the tungsten filament cutter head 3 coincides with the above-mentioned symmetry plane between the upper handle inclined plane 23 and the lower handle inclined plane 24.

In the embodiment, the length and the width of the tungsten wire cutter head 3 are both 15mm, the width refers to the distance between the two parallel sections 31, and the length refers to the distance from the vertex of the arc section 32 to the connecting handle 2; in this embodiment, the diameter of the tungsten wire constituting the tungsten wire tip 3 is set to 0.25 mm. The total length of the conductive rod 1 and the connecting handle 2 connected with the left end of the conductive rod is set to be 130mm, and the diameter of the conductive rod 1 is set to be 2.36 mm.

The above-described configuration of the tungsten filament cutter head 3 is such that the tungsten filament used for cutting encloses an annular working area on the shank 2 which is burr-free and has no projecting tip. Therefore, the cutting instrument can conveniently stretch into a narrow space for cutting, the operation wound is as small as possible, the operation time is also as short as possible, the probability of postoperative infection is reduced, and the postoperative recovery is fast; the tissue can not be accidentally scratched or pulled; meanwhile, the tungsten wire cutter head 3 made of tungsten is made of a material which has the characteristic of high temperature resistance and has high mechanical strength in a high-temperature environment, so that the tungsten wire cutter head can be kept from being broken and deformed when cutting tissues.

In the above-described structure, only the tungsten filament cutter 3 is used as the cutting member, and therefore, the conductive rod 1 and the stem 2 are required to be insulated to prevent both from damaging 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 and the insulating layer are made of plastic materials through injection molding of ABS or thermoplastic molding, and the insulating sleeve 4 is connected with the insulating layer. In the embodiment, both the insulation sleeves and the insulation sleeve are preferably injection molded by ABS, and the insulation sleeves and the insulation sleeve are integrally injection molded by ABS, so that the insulation sleeve 4 is an injection molded ABS tube. The present embodiment provides that the diameter of the insulating sheath 4 is 4 mm.

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 17 mm.

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 ring electrode structure, be provided with on the casing with the mounting hole of connecting portion 41 looks adaptation, foretell ring electrode structure is connected to on the casing through connecting portion 41 on its insulating cover 4.

When the device is used, the annular electrode structure is arranged in a shell of an electric knife pen, a power supply is switched on, the shell is held by hands, a tungsten filament knife head 3 which is at the tail end of the shell and forms an annular shape extends into a narrow tissue space to be operated through a conducting rod 1, the tissue to be cut is sleeved in an annular area which is surrounded by the tungsten filament knife head 3, after the tungsten filament knife head 3 is in a state of being capable of cutting, the conducting rod 1 is pulled through the shell, the tungsten filament knife head 3 is driven to move, the tissue sleeved in the tungsten filament knife head can be cut, the operation is simple and convenient, other auxiliary tools are not needed, the tissue is small in damage and wound, the device is not only suitable for operation in the narrow space, but also suitable for fine operations and minimally invasive operations of dermatology, plastic surgery, gynecology 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. An annular electrode structure, characterized by: the left end of the conducting rod is provided with a connecting handle, the connecting handle comprises a handle body and two fork heads, and the two fork heads are arranged on two sides of the left end of the handle body in a facing manner; a tungsten filament cutter head made of tungsten filaments with smooth surfaces is connected between the two fork heads, the tungsten filament cutter head comprises two parallel sections located in the same plane and an arc section connected between the two parallel sections, the plane where the tungsten filament cutter head is located is overlapped with the axis of the conducting rod, the parallel sections and the arc section are integrally formed, the two parallel sections are respectively connected to the two fork heads, the two parallel sections are opposite to and parallel to the conducting rod, the arc section protrudes in the direction away from the parallel sections, and the arc section and the parallel sections are in smooth transition; the anti-skid device is characterized in that an insulating sleeve is sleeved on the outer wall of the conducting rod, an insulating layer is arranged on the connecting handle, the insulating sleeve is connected with the insulating layer, the right end of the conducting rod 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-skid portion is further arranged on the surface of the insulating sleeve.

2. The ring 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 ring 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 ring electrode structure of claim 1, wherein: the length and the width of the tungsten filament cutter head are both 15 mm.

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

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

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

8. The ring 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 ring 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: further comprising a ring electrode structure according to any of claims 1-9, said housing being provided with mounting holes adapted to said connection portions.