CN218106030U

CN218106030U - Radio frequency plasma surgical knife head for tissue hemostasis

Info

Publication number: CN218106030U
Application number: CN202221027531.6U
Authority: CN
Inventors: 罗涛; 代松伟; 杨迎春; 倪春玲
Original assignee: Anhui Wanwei Medical Technology Co ltd
Current assignee: Anhui Wanwei Medical Technology Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-12-23
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a radio frequency plasma surgical knife head for tissue hemostasis, relating to the technical field of medical instruments. Comprises a cutter head component and a shell component used for fixing the cutter head component and facilitating the grasping of the cutter head component; the cutter head component comprises an electrode wire, and an inner insulating layer, an outer steel pipe and an outer insulating layer which are sequentially wrapped on the outer side of the electrode wire; the electrode wire is a thin-wall metal tube, one end part of the electrode wire is welded with a working part, the working part is a hollow sphere with holes at two ends, the other end of the electrode wire is connected with a suction tube, and the other end of the suction tube is connected with a negative pressure suction device; the shell assembly is arranged at one end, far away from the working part, of the cutter head assembly. The utility model discloses a design the cutter head work portion into spherical structure for the tool bit surface is mellow and smooth, has solved because the tool bit structure is sharp to cause the problem of wound to the tissue, simultaneously, attracts union coupling negative pressure suction device, and timely suction waste liquid does benefit to the operation and goes on.

Description

Radio frequency plasma surgical knife head for tissue hemostasis

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a radio frequency plasma surgical knife head for tissue hemostasis.

Background

The radio frequency plasma scalpel is characterized in that a transformation magnetic field is generated at a working end, sodium ions and chloride ions in physiological saline are accelerated by the magnetic field, and then plasma is generated and bombards tissues to decompose the tissues, so that the purpose of cutting and ablation is achieved; meanwhile, cells can be dehydrated to achieve the purpose of coagulation hemostasis; has the characteristics of high accuracy and the like, so the method is widely applied to surgical operations of various departments. With the continuous development of medical science, the surgery of the complexity usually adopts the radio frequency scalpel to cooperate and carry out the function synchronization of making a video recording. The working end of the current radio frequency plasma hemostasis surgical knife head is generally needle-shaped, sheet-shaped or filiform, the surface of a contacted tissue is small, the hemostasis effect is general, the time is long, the risk of the surgery is increased, and the needle-shaped or sheet-shaped edge end face is relatively sharp, so that unnecessary mechanical damage can be caused to the tissue; in addition, in the operation process, when working medium physiological saline, blood generated by operation treatment and the like are accumulated at the imaging position of the cutter head, the imaging position is unclear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a radio frequency plasma surgical knife head for organize hemostasis, through designing tool bit work portion into spherical structure for the tool bit surface is mellow and smooth, has solved because the tool bit structure is sharp to cause the problem of wound to the tissue, simultaneously, sets up in the tool bit subassembly and attracts the pipe and connect the negative pressure suction device, has solved the adverse effect of waste liquid such as hydrops to the sight.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a radio frequency plasma surgical knife head for tissue hemostasis, which comprises a knife head component and a shell component used for fixing the knife head component and facilitating the grasping of the knife head component, wherein the knife head component comprises a wire electrode, an inner insulating layer, an outer steel pipe and an outer insulating layer which are sequentially wrapped outside the wire electrode; the electrode wire is a thin-wall metal tube, one end part of the electrode wire is welded with a working part, the working part is a hollow sphere with holes at two ends, and one end of the electrode wire, which is far away from the working part, is provided with a suction tube; the cutter head component also comprises a cable which is respectively connected with the electrode wire and the outer steel pipe; the shell component is arranged at one end, far away from the working part, of the cutter head component.

As an optimized technical proposal of the utility model, the suction tube is made of medical polymer material, and one end of the suction tube, which is far away from the tool bit component, is connected with the negative pressure suction device.

As an optimized technical scheme of the utility model, the inside insulating layer is heat-shrinkable insulation support to hug closely the setting of wire electrode outer wall.

As an optimized technical scheme of the utility model, the outside insulating layer is the insulating sleeve parcel that the heat can contract outside steel pipe outer wall, the outside insulating layer leaves 2-5 mm's clearance near the one end of work portion and between the work portion.

As a preferred technical scheme of the utility model, the work portion is 3/4 spheroid structure.

As a preferred technical solution of the present invention, the housing assembly includes an inner housing for mounting the fixed cutter head assembly, an outer housing for accommodating the inner housing, the suction tube, and the cable, and a tail housing for leading out the suction tube and the cable; the outer shell, the inner shell and the tail shell are all made of high polymer materials, one end of the outer shell is nested on the inner shell, and the other end of the outer shell is connected with the tail shell.

As an optimized technical scheme of the utility model, the junction of cable and wire electrode and outer steel pipe on the tool bit subassembly to and attract the junction of pipe and wire electrode, all set up at the inner shell intracavity, and fill fixedly through insulating cement.

The utility model discloses following beneficial effect has:

the working part of the tool bit component of the utility model adopts a spherical end surface, the spherical surface increases the contact area of the tool bit tissue, the hemostatic area is large, the hemostatic effect is good, and the working surface is smooth and has no edges and corners, thus avoiding the mechanical damage of the tool bit to the tissue; the tool bit subassembly sets up and attracts the pipe and connect negative pressure suction device, can effectually take away bloody water and waste liquid, lets the surface of a wound cleaner, has guaranteed going on smoothly of operation.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages simultaneously.

Drawings

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

Fig. 1 is a schematic structural view of a radio frequency plasma surgical knife head for tissue hemostasis according to the present invention;

FIG. 2 is a schematic view of the internal structure of a RF plasma surgical knife for tissue hemostasis according to the present invention;

FIG. 3 is a schematic view of the internal structure of the cutter head assembly of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-cutter head component, 2-shell component, 101-electrode wire, 102-inner insulation layer, 103-outer steel tube, 104-outer insulation layer, 105-working part, 106-suction tube, 107-cable, 201-inner shell, 202-outer shell, 203-tail shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the utility model relates to a radio frequency plasma surgical knife head for tissue hemostasis, which comprises a knife head component 1 and a shell component 2 for fixing the knife head component 1 and facilitating the grasping of the knife head component, wherein the knife head component 1 comprises a wire electrode 101, and an inner insulating layer 102, an outer steel tube 103 and an outer insulating layer 104 which are sequentially wrapped outside the wire electrode 101; one end part of the electrode wire 101 is welded with a working part 105, one end of the electrode wire, which is far away from the working part 105, is provided with a suction tube 106, the suction tube 106 is made of medical polymer materials, and one end of the electrode wire, which is far away from the cutter head component 1, is connected with a negative pressure suction device; the cutter head component 1 also comprises a cable 107 which is respectively connected with the electrode wire 101 and the outer steel tube 103; the housing assembly 2 is disposed at an end of the bit assembly 1 remote from the working portion 105.

Referring to fig. 1 and 2, the housing assembly 2 includes an inner housing 201 for mounting the fixed cutter head assembly 1, an outer housing 202 for accommodating the inner housing 201, the suction tube 106, the cable 107, and a tail housing 203 for leading out the suction tube 106 and the cable 107; the inner shell 201, the outer shell 202 and the tail shell 203 are all made of high polymer materials, one end of the outer shell 202 is embedded on the inner shell 201, and the other end of the outer shell is connected with the tail shell 203; the joint of the cable 107 on the cutter head component 1, the electrode wire 101, the outer steel tube 103 and the joint of the suction tube 106 and the electrode wire 101 are arranged in the cavity of the inner shell 201 and are filled and fixed through insulating glue.

Referring to fig. 3, the wire electrode 101 is a thin-wall metal tube, the working portion 105 is a 3/4 sphere with openings at two ends, the inside of the working portion is a hollow structure, one open end of the working portion 105 is welded on the wire electrode 101, and the other open end is used as a working end for sucking effusion from a tissue wound; the inner insulating layer 102 and the outer insulating layer 104 are both heat-shrinkable insulating sleeves, the inner insulating layer 102 is arranged close to the outer wall of the wire electrode 101, the outer insulating layer 104 wraps the outer wall of the outer steel tube 103, and a gap of 2-5mm is reserved between one end of the outer insulating layer 104 close to the working part 105 and the working part 105.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A radio frequency plasma surgical knife head for tissue hemostasis, includes tool bit subassembly (1) and is used for fixed tool bit subassembly (1) and shell assembly (2) of being convenient for tool bit subassembly (1) to grasp, its characterized in that:

the tool bit assembly (1) comprises a wire electrode (101), and an inner insulating layer (102), an outer steel pipe (103) and an outer insulating layer (104) which are sequentially wrapped on the outer side of the wire electrode (101); the electrode wire (101) is a thin-wall metal tube, one end part of the electrode wire (101) is welded with a working part (105), and the working part (105) is a hollow sphere with holes at two ends; one end of the electrode wire (101) far away from the working part (105) is provided with a suction tube (106);

the cutter head component (1) further comprises a cable (107) which is respectively connected to the electrode wire (101) and the outer steel pipe (103);

the shell component (2) is arranged at one end, far away from the working part (105), of the cutter head component (1).

2. The radio frequency plasma surgical knife head for tissue hemostasis according to claim 1, characterized in that a negative pressure suction device is connected to one end of the suction tube (106) far away from the knife head assembly (1).

3. A rf plasma surgical blade for tissue hemostasis according to claim 1, characterized in that the inner insulating layer (102) is a heat-shrinkable insulating sleeve and is disposed against the outer wall of the wire electrode (101).

4. The RF plasma surgical blade for tissue hemostasis according to claim 1, wherein the outer insulation layer (104) is a heat-shrinkable insulating sleeve wrapped around the outer surface of the outer steel tube (103), and a gap of 2-5mm is left between the end of the outer insulation layer (104) close to the working portion (105) and the working portion (105).

5. A radio frequency plasma surgical blade for hemostasis of tissue as claimed in claim 1, characterised in that the working portion (105) is of 3/4 sphere configuration.

6. A radio frequency plasma surgical blade for hemostasis of tissues according to any one of claims 1 to 5, characterized in that the housing assembly (2) comprises an inner shell (201) for mounting the fixed blade assembly (1), an outer shell (202) for housing the inner shell (201), the suction tube (106) and the cable (107), and a tail shell (203) for leading out the suction tube (106) and the cable (107); one end of the outer shell (202) is nested on the outer surface of the inner shell (201), and the other end of the outer shell is connected with the fixed tail shell (203).

7. The radio frequency plasma surgical knife head for tissue hemostasis according to claim 6, characterized in that the joints of the cable (107) and the electrode wire (101) and the outer steel tube (103) as well as the joints of the suction tube (106) and the electrode wire (101) on the knife head assembly (1) are arranged in the inner shell (201) and are filled and fixed through insulating glue.