CN106821494B

CN106821494B - Plasma operation electrode

Info

Publication number: CN106821494B
Application number: CN201710192483.3A
Authority: CN
Inventors: 李雪英; 康健
Original assignee: Chengdu Mechan Electronic Technology Co ltd
Current assignee: Chengdu Mechan Electronic Technology Co ltd
Priority date: 2017-03-28
Filing date: 2017-03-28
Publication date: 2023-06-23
Anticipated expiration: 2037-03-28
Also published as: CN106821494A

Abstract

The invention discloses a plasma operation electrode, which comprises a handle, wherein the handle is connected with an electrode, the electrode comprises a loop electrode, the tail end of the electrode is provided with a working electrode, the working electrode and the loop electrode are respectively connected with the anode and the cathode of a plasma generator, a bending part is arranged between the working electrode and the electrode, and the bending part is connected with a driving device.

Description

Plasma operation electrode

Technical Field

The invention relates to medical equipment, in particular to a plasma surgical electrode.

Background

The basic principle of the low-temperature plasma operation electrode is that the energy generated by a plasma generator is utilized to enable a highly-aggregated plasma thin layer to be formed between the plasma operation electrode and tissues, plasma in the thin layer is accelerated by an electric field, and the low-temperature plasma operation electrode has enough energy to crush organic molecular chains in the tissues, so that the tissues are decomposed into simple molecules, atoms or low-molecular-weight gas, and the function of ablation and cutting is achieved. Because the current does not directly flow through the tissue, the tissue has little heat generation, so the treatment temperature is low (40-70 ℃) and the activity of the cells can be maintained. Simultaneously, due to the insulation effect of the plasma and the thermal effect of the current, the blood vessel can be rapidly contracted and solidified, and the function of hemostasis in operation is realized. The plasmas generated in the physiological saline water contain various active particles (electrons, ions, atoms, molecules and free radicals in various excited states, and the like) which are extremely easy to generate oxidation reaction with proteins and nucleic acid substances in bacteria, mold, spores and viruses to denature, so that various microorganisms die or the bacteria are finally oxidized and degraded into CO and CO ₂ 、H ₂ O, thereby realizing the function of disinfection in operation.

The unique structural design of the plasma operation electrode can ensure that the treatment is accurately positioned between the working electrode and the loop, thereby avoiding the damage to the healthy tissues to the maximum extent. The automatic energy control function can ensure that the excessive cutting and ablation effect can not occur in the target tissue region.

The plasma operation electrode is mainly used for accurately cutting and ablating tissues and stopping bleeding in an accurate operation, and because the instrument is generally used on finer tissues or applied to minimally invasive operations, the structure of the existing plasma operation electrode is relatively fixed, or is a vertical long rod or a cutter head has a fixed angle, and when the plasma operation electrode is applied to a complex and narrow operation environment, the flexibility of the instrument is insufficient, and the operability and the actual use effect of the operation can be affected.

Disclosure of Invention

In view of this, the present application aims to provide a plasma surgical electrode with a high degree of flexibility and a wide application range.

In order to solve the technical problems, the technical scheme provided by the invention is that the plasma operation electrode comprises a handle, the handle is connected with an electrode, the electrode comprises a loop electrode, the tail end of the electrode is provided with a working electrode, the working electrode and the loop electrode are respectively connected with the anode and the cathode of a plasma generator, a bending part is further arranged between the working electrode and the loop electrode, and the bending part is connected with a driving device.

Preferably, the loop pole is a hollow tube made of a conductor material, the loop pole is connected with the bending part and the handle, and the periphery of the loop pole further comprises an insulating sleeve made of an insulating material.

Preferably, the working electrode comprises a first working electrode and a second working electrode, the first working electrode and the second working electrode are insulated from each other, the first working electrode and the second working electrode are connected with a selection switch, and the selection switch is located on the handle.

Preferably, the first working electrode is an arc surface electrode arranged at the tip of the working electrode.

Preferably, the second working electrode is a wire electrode, and the side surface of the second working electrode is also provided with a hollowed-out shell.

Preferably, the selection switch comprises a manual deflector rod, a first connecting part, a second connecting part and a third connecting part, wherein the first working electrode is fixedly connected with the first connecting part, the second working electrode is fixedly connected with the second connecting part, and the third connecting part is connected with the anode of the plasma generator.

Preferably, the driving device comprises a traction wire, the traction wire penetrates through the cavity in the loop pole, one end of the traction wire is fixed in the bending part, the other end of the traction wire is connected with an adjusting device, and the adjusting device is installed on the handle.

Preferably, the adjusting device comprises a rotating wheel and a deflector rod fixed on the rotating wheel, and the traction wire is connected to the rotating wheel.

Preferably, the bending component comprises a first bending part and a second bending part, one end of the first bending part is fixed on one side of the end face of the working electrode, one end of the second bending part is fixed in the loop electrode, the first bending part and the second bending part are hinged, a traction rod is further arranged in the loop electrode, the traction rod is connected with the traction wire, and an elastic part is further arranged between the second bending part and the traction rod.

Preferably, the bending part comprises a plurality of connecting rings which are hinged in sequence, and two end surfaces of the connecting rings which are hinged in sequence are respectively connected with the end surfaces of the working electrode and the loop electrode.

Compared with the prior art, the application is described in detail as follows:

the plasma body operation electrode is in a slender tubular shape, has the advantage of being suitable for a narrow space, and has the advantage of flexible operation and wide applicability, and the electrode and the working electrode are provided with a steering part capable of steering.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a schematic diagram of the connection relationship between the working electrode, the selector switch and the positive and negative electrodes of the plasma generator 4 connected with the selector switch;

FIG. 3 is a schematic diagram of a driving apparatus;

fig. 4 is a schematic structural view of embodiment 1 of the driving device;

fig. 5 is a schematic structural view of embodiment 2 of the driving device.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, a plasma operation electrode comprises a handle 1, the handle 1 is connected with an electrode 2, the electrode 2 comprises a loop electrode 21, the loop electrode 21 is a hollow tube made of a conductor material, one end of the loop electrode 21 is fixed on the handle 1, the other end of the loop electrode 21 is sequentially provided with a bending part 5 and a working electrode 3, the working electrode 3 and the loop electrode 21 are respectively connected to a positive electrode 42 and a negative electrode 41 of a plasma generator 4, the bending part 5 is connected with a driving device 6, the periphery of the loop electrode 21 is wrapped with an insulating sleeve 22 made of an insulating material, the working electrode 3 comprises a first working electrode 31 and a second working electrode 32, and the first working electrode 31 and the second working electrode 32 are insulated from each other. The first working electrode 31 is an arc surface electrode arranged at the tail end of the working electrode, the second working electrode 32 is a wire electrode, the second working electrode 32 is specifically arranged between the first working electrode 31 and the bending part 5, and a hollowed-out shell is further arranged around the second working electrode 32.

The handle 1 is provided with a selector switch 11, the selector switch 11 comprises a manual deflector 12, a first connecting portion 13, a second connecting portion 14 and a third connecting portion 15, the first working electrode 31 is fixedly connected with the first connecting portion 13, the second working electrode 32 is fixedly connected with the second connecting portion 14, the third connecting portion 15 is connected with an anode 42, and the loop electrode 21 is directly connected with a cathode 41. The user selects the operating mode of the plasma surgical electrode by means of the manual lever 12, comprising: in the first working mode, the loop electrode 21 is fixedly communicated with the negative electrode 41 of the plasma generator 4, when the first connecting part 13 is communicated with the third connecting part 15, the first working electrode 31 is communicated with the positive electrode 42 of the plasma generator 4, and the first working electrode 31 at the tip of the working electrode 3 discharges; in the second operation mode, the loop electrode 21 is fixedly connected with the negative electrode 41 of the plasma generator 4, and when the second connection part 14 is connected with the third connection part 15, the second working electrode 32 is connected with the positive electrode 42 of the plasma generator 4, and the wire-shaped second working electrode 32 on the working electrode 3 discharges.

As shown in fig. 1 and 3, the driving device 6 includes a pulling wire 61, the pulling wire 61 passes through the cavity in the loop pole 21, one end of the pulling wire 61 is connected with the bending part 5, the other end of the pulling wire 61 is connected with an adjusting device 62, the adjusting device 62 is installed on the handle 1, the adjusting device 62 includes a rotating wheel 65 and a deflector 66 fixed on the rotating wheel 65, when a user dials the rotating wheel 65 through the deflector 66, the user rotates around the axis of the user, and because one end of the pulling wire 61 is eccentrically fixed on the rotating wheel 65, when the rotating wheel 65 rotates, the pulling wire 61 pulls the bending part 5, so that the bending part 5 drives the working pole 3 to turn.

The present application further describes two preferred embodiments of the bending member 5 by way of example 1 and example 2, and it should be noted that this example should not be construed as limiting the structure of the bending member, and the scope of protection of the present application should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Example 1

As shown in fig. 4, the bending member 5 includes a first bending portion 51 and a second bending portion 52, one end of the first bending portion 51 is fixed on the working pole 3, the second bending portion 52 is fixed on the loop pole 21, the first bending portion 51 and the second bending portion 52 are hinged to each other, the first bending portion 51 is further hinged to a traction rod 54, a hinge point of the first bending portion 51 and the second bending portion is denoted as a hinge point a, a hinge point of the first bending portion 51 and the traction rod 54 is denoted as a hinge point B, and the hinge point a and the hinge point B are respectively located at two sides of a geometric center of a hinged end surface of the first bending portion 51. The traction rod 54 is connected to the rotating wheel 65, when a user dials the rotating wheel 65, the second bending portion 52 is fixed, the traction rod 54 pulls the first bending portion 51 to swing around the hinge point of the first bending portion and the second bending portion 52, so that the purpose of rotating the working electrode 3 is achieved, and the elastic portion is used for enabling the bent traction rod 54 to rebound and enabling the working electrode 3 to reset.

Example 2

The bending part 5 comprises a plurality of connecting rings 53 which are hinged in sequence, one end of the bending part 5 is connected with the working electrode 3, the other end of the bending part 5 is connected with the end face of the loop electrode 21, two traction wires which are a first traction wire 63 and a second traction wire 64 respectively penetrate through the bending part 5, the first traction wire 63 and the second traction wire 64 are arranged in parallel with the central axis of the loop electrode 21, and the first traction wire 63 and the second traction wire 64 are symmetrically arranged on two sides of the central axis.

The ends of the first traction wire 63 and the second traction wire 64 are fixed on the rotating wheel 65, and the fixed ends are respectively positioned at two sides of the center of the circle of the rotating wheel 65. When the rotating wheel 65 is rotated clockwise, the first traction wire 63 is wound around the rotating wheel 65 and tightened, the second traction wire 64 is loosened, and the rotating ring 53 is bent to one side of the first traction wire 63 by the traction of the first traction wire 63.

Through above-mentioned technical scheme, the part of bending has the adjustable, the high advantage of flexibility ratio of bending angle, simultaneously, through above-mentioned structure, can realize the turn of great scope angle, it is big to have the angle of bending in actual operation, the flexible advantage of plasma operation electrode flexible operation under narrow and small environment, simultaneously, compared with only can the tip electrode effect in the prior art, the application still discloses a plasma operation electrode with two kinds of operation modes, with the ablation hemostasis effect of tip electrode different, filiform second working electrode can also be used for cutting the tissue, have the effect of ablation hemostasis simultaneously, have application scope wide, the advantage that the operation flexibility is high.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the invention, and the scope of the invention should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims

1. The utility model provides a plasma operation electrode, includes the handle, its characterized in that, be connected with the electrode on the handle, the electrode includes the return circuit pole, the end of electrode is equipped with the working pole, the working pole with the return circuit pole is connected with plasma generator's positive pole and negative pole respectively, the working pole with still be equipped with the part of bending between the return circuit pole, the part of bending is connected with drive arrangement, the working pole includes first working pole and second working pole, first working pole with insulating each other between the second working pole, first working pole with the second working pole is connected with selector switch, selector switch is located on the handle, first working pole is the arc surface electrode of setting the tip of working pole, the second working pole is the filiform electrode, the second working pole sets up between first working pole and the part of bending, still be equipped with the casing of fretwork around the second working pole.

2. A plasma surgical electrode according to claim 1, wherein the return pole is embodied as a hollow tube of conductive material, the return pole connecting the bending member and the handle, the periphery of the return pole further comprising an insulating sleeve of insulating material.

3. The plasma surgical electrode of claim 1, wherein the selector switch comprises a manual lever, a first connecting portion, a second connecting portion, and a third connecting portion, the first working electrode is fixedly connected to the first connecting portion, the second working electrode is fixedly connected to the second connecting portion, and the third connecting portion is connected to the positive electrode of the plasma generator.

4. A plasma surgical electrode according to claim 1, wherein the drive means comprises a pull wire passing through the cavity in the loop electrode, one end of the pull wire being secured in the bending member, the other end of the pull wire being connected to an adjustment means, the adjustment means being mounted on the handle.

5. The plasma surgical electrode of claim 4, wherein said adjustment means comprises a rotatable wheel and a lever secured to said rotatable wheel, said pull wire being attached to said rotatable wheel.

6. The plasma surgical electrode according to claim 4, wherein the bending member comprises a first bending portion and a second bending portion, one end of the first bending portion is fixed on one side of the end face of the working electrode, one end of the second bending portion is fixed in the loop electrode, the first bending portion and the second bending portion are hinged, a traction rod is further arranged in the loop electrode, the traction rod is connected with the traction wire, and an elastic portion is further arranged between the second bending portion and the traction rod.

7. The plasma surgical electrode according to claim 5, wherein the bending member comprises a plurality of sequentially hinged connection rings, and both end surfaces of the sequentially hinged connection rings are respectively connected with the end surfaces of the working electrode and the return electrode.