Low-temperature plasma operation electrode with bendable electrode stem

Abstract

The utility model discloses a low-temperature plasma operation electrode with a bendable electrode stem, which comprises a handle, the front end of the handle is rotatably connected with an electrode stem rotating wheel, the bendable electrode stem is mounted in the electrode stem rotating wheel, the front end of the electrode stem is connected with an electrode tool bit, the lower end of the tail of the handle is connected with a suction tube, and the lower end of the tail of the handle is connected with the suction tube. According to the low-temperature plasma operation electrode with the bendable electrode stem, the electrode stem can be conveniently bent, the bending range is large, the flexibility is high, the electrode stem can be conveniently bent and rotated at multiple angles in an operation by being matched with an electrode stem rotating wheel, the operation is convenient, and the operation efficiency is improved. Therefore, the electrode tool bit is adjusted to a plurality of angles and positions required by an operation, meanwhile, the structure of the electrode tool bit is simplified, the operation space is increased, the low-temperature cutting effect of the electrode tool bit is good, a small amount of smoke generated in the operation process can be conveniently sucked away through the cooperation of the suction tube and the negative pressure aspirator with the electrode rod, and it is ensured that the view of an operation site is clear.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plasma operation electrode, concretely is a low temperature plasma operation electrode with bendable electrode stem. BACKGROUND

[0002] At present, the instruments used in ear-nose-throat operation mainly are ordinary high-frequency operation electrode, bipolar radio frequency plasma electrode and the like, the ordinary high-frequency operation electrode has the defects such as high heat damage, high adhesion, high smoke and the like, and the bipolar radio frequency plasma electrode needs to deliver physiological saline to the operation site when working, and needs to promptly draw away the saline, the intervention of physiological saline occupies the limited operation space, blocks the effective operation visual field, adds the redundant burden to the operation process, at the same time, because the ear-nose-throat operation space is narrow, the operation space is limited, the electrode stem may need to be bent during operation, and only then the cutter head can reach the operation position. Therefore, the electrode stem needs to be bent under the premise of meeting the function to meet that the cutter head can flexibly reach the expected position, the existing low temperature plasma operation electrode electrode stem is inconvenient to bend, the electrode cutter head structure is complex, the operation space is influenced, and the smoke is inconvenient to draw away, which influences the operation visual field. SUMMARY

[0003] The utility model solves the technical problems of overcoming the defects of the prior art, and provides a low temperature plasma operation electrode with bendable electrode stem, the electrode stem can be bent, the electrode cutter head structure is simple, the operation space is increased, the smoke is conveniently drawn away, the operation visual field is good, and the problems in the background art can be effectively solved.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A low temperature plasma operation electrode with bendable electrode stem, comprising a handle, a electrode stem rotating wheel is rotationally connected to the front end of the handle, a bendable electrode stem is installed in the electrode stem rotating wheel, an electrode cutter head is connected to the front end of the electrode stem, a suction pipe is connected to the lower end of the tail of the handle, a negative pressure aspirator is installed at the tail of the suction pipe, a cable is connected to the upper end of the tail of the handle, a plug is connected to the tail of the cable, and a plurality of hand control button switches are arranged on the side surface of the handle.

[0006] As a preferred technical scheme of the utility model, the electrode stem comprises an insulating sleeve and a red copper pipe, and the insulating sleeve is wrapped around the outer circumferential surface of the red copper pipe.

[0007] As a preferred technical scheme of the utility model, the electrode cutter head is composed of a metal body and a ceramic coating.

[0008] As a preferred technical scheme of the utility model, the front end of the electrode cutter head is provided with a first cutting edge and a second cutting edge, the included angle alpha between the first cutting edge and the second cutting edge is 90-110 DEG, and the edge angle beta of the first cutting edge and the second cutting edge is 45 DEG.

[0009] As a preferred technical scheme of the utility model, the electrode cutter head is fixedly welded at the front end of the electrode rod.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The electrode rod of the low-temperature plasma surgical electrode can be conveniently bent, has a large bending range and high flexibility, and can be conveniently bent and rotated at multiple angles in cooperation with the electrode rod rotating wheel, so that the electrode cutter head can be adjusted to multiple angles and positions required in surgery, the structure of the electrode cutter head is simplified, the operation space is increased, the low-temperature cutting effect of the electrode cutter head is good, a small amount of smoke generated in the surgical process can be conveniently sucked away through the suction pipe and the negative pressure aspirator in cooperation with the electrode rod, and the visual field of the surgical site is ensured to be clear. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the utility model I detail enlargement.

[0014] Figure 3 It is a structural schematic diagram of the utility model electrode cutter head detail enlargement.

[0015] Figure 4 It is a structural schematic diagram of the utility model metal body local section.

[0016] Figure 5 It is a structural schematic diagram of the utility model electrode cutter head side surface.

[0017] Figure 6 It is a structural schematic diagram of the utility model red copper pipe and electrode cutter head connection detail.

[0018] Figure 7 It is a structural schematic diagram of the utility model metal body working state.

[0019] In the drawing: electrode cutter head 1, first cutting edge 1-1, second cutting edge 1-2, metal body 1-3, ceramic coating 1-4, electrode rod 2, insulating sleeve 2-1, red copper pipe 2-2, electrode rod rotating wheel 3, hand control button switch 4, handle 5, suction pipe 6, cable 7, plug 8, negative pressure aspirator 9. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-7 The present application provides a technical scheme:

[0022] The low-temperature plasma surgical electrode with a bendable electrode rod comprises a handle 5, the front end of the handle 5 is rotationally connected with an electrode rod rotating wheel 3, the electrode rod rotating wheel 3 is internally provided with a bendable electrode rod 2, the front end of the electrode rod 2 is connected with an electrode cutter head 1, the lower end of the tail of the handle 5 is connected with a suction pipe 6, the tail of the suction pipe 6 is provided with a negative pressure aspirator 9, the upper end of the tail of the handle 5 is connected with a cable 7, the tail of the cable 7 is connected with a plug 8, and the side surface of the handle 5 is provided with a plurality of hand control button switches 4.

[0023] The electrode rod 2 comprises an insulating sleeve 2-1 and a red copper pipe 2-2, and the insulating sleeve 2-1 is wrapped on the outer circumferential surface of the red copper pipe 2-2.

[0024] The electrode cutter head 1 is composed of a metal body 1-3 and a ceramic coating 1-4.

[0025] The front end of the electrode cutter head 1 is provided with a first cutting edge 1-1 and a second cutting edge 1-2, the included angle a between the first cutting edge 1-1 and the second cutting edge 1-2 is 90-110°, and the edge included angle β of the first cutting edge 1-1 and the second cutting edge 1-2 is 45°.

[0026] The electrode cutter head 1 is fixedly welded on the front end of the electrode rod 2.

[0027] The effective working length L of the electrode cutter head 1 is 4mm±1mm, the width W size distribution range of the electrode cutter head 1 is 2mm±0.5mm, the thickness T size distribution range of the electrode cutter head 1 is 0.5mm±0.1mm, the first cutting edge 1-1 and the second cutting edge 1-2 are distributed at the front end of the electrode cutter head 1, the included angle a between the first cutting edge 1-1 and the second cutting edge 1-2 is distributed between 90° and 110°, preferably 100°, and the edge included angle distribution range of the first cutting edge 1-1 and the second cutting edge 1-2 is 45°±1°.

[0028] The electrode rod 2 comprises an insulating sleeve 2-1 and a red copper pipe 2-2, the red copper pipe 2-2 adopts a hollow red copper pipe, a T4 red copper pipe is selected, the insulating sleeve 2-1 adopts a PE / PEEK material, preferably a PE insulating sleeve, the insulating sleeve 2-1 is wrapped on the outer circumferential surface of the red copper pipe 2-2, the outer diameter D of the red copper pipe 2-2 ranges from 3.5mm±0.5mm, the inner diameter d ranges from 2mm±0.5mm, the metal body 1-3 is welded with the red copper pipe 2-2 by a brazing process, the metal body 1-3 is welded on the side of the front end of the red copper pipe 2-2, in order to realize multi-angle bending of the electrode rod in the operation process, the red copper pipe 2-2 selects a T4 red copper pipe, the maximum bending angle can reach 150° and the inner diameter deformation does not affect the functional use, at the same time, the electrode rod 2 can be rotated by 360° through the electrode rod rotating wheel 3, and then the electrode knife head 1 can be adjusted to various angles according to the operation needs through the rotation and bending of the electrode rod 2.

[0029] Working principle: after the plug 8 is connected to the high-frequency or radio-frequency host, the host outputs high-frequency high-voltage pulse current, which is conducted to the electrode knife head 1 through the cable 7, the handle 5 and the electrode rod 2, a local high-voltage electric field is formed between the front-end slit of the electrode knife head 1 and the cut tissue, the electric field intensity meets the condition of generating plasma, the air in the slit and the water molecules in the tissue are ionized, combined with various ions in the tissue fluid, which are accelerated under the electric field to obtain sufficient ion kinetic energy, generate plasma avalanche effect (the ion components of plasma mainly include oxygen ions OH-, hydrogen ions H+, Na+, Cl- and the like) and electron transition, the ion kinetic energy collides with tissue cells, leading to the breaking of cell molecular bonds, and achieving the tissue cutting effect.

[0030] In order to realize the above technical scheme, the surface of the electrode knife head 1 is provided with a ceramic coating 1-4, which realizes energy confinement, the front-end working part of the electrode knife head 1 is provided with a blade, the blade comprises a first cutting blade 1-1 and a second cutting blade 1-2, the blade is an uncovered coating area (as shown in Figure 7 The high-frequency current passes through the slit of the blade of the uncovered coating area at the front end of the electrode knife head 1 and the cut tissue to form a local high-voltage electric field, achieving low-temperature cutting and low-smoke effect, in order to realize energy confinement and cutting effect, the cross-sectional width t of the blade of the uncovered coating area is controlled within the range of 0.1um-10um, and is preferably 0.5um.

[0031] The handle 5 is internally provided with a hollow pipe, the electrode rod 2 is communicated with the suction pipe 6 through the hollow pipe in the handle 5, the suction pipe 6 is a hose, the tail of the electrode rod 2 is connected with a hospital negative pressure suction device such as a negative pressure suction device 9 through the handle 5 and the suction pipe 6, the negative pressure suction device 9 adopts a common type on the market, a small amount of smoke generated in the operation process can be sucked away through the hollow electrode rod 2, the suction pipe 6 and the negative pressure suction device 9, ensuring that the visual field of the operation site is clear.

[0032] The low-temperature plasma surgical electrode with the electrode rod being bendable can realize low-temperature cutting and low-smoke surgical effect, meanwhile, the saline channel is removed, the electrode knife head structure is simplified, the surgical operation space is increased, in addition, the small amount of smoke generated in the operation is timely sucked away through negative pressure, the clear surgical visual field is ensured, the electrode rod 2 cooperates with the electrode rod rotating wheel 3 to be multi-angle bendable and rotatable, so that the knife head is adjusted to most angles and positions required in the operation.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A low temperature plasma surgical electrode with a bendable electrode shaft, comprising a handle (5), characterized in that: The front end of the handle (5) is rotationally connected with an electrode rod rotating wheel (3), a bendable electrode rod (2) is installed in the electrode rod rotating wheel (3), the front end of the electrode rod (2) is connected with an electrode cutter head (1), the lower end of the tail of the handle (5) is connected with a suction pipe (6), the tail of the suction pipe (6) is installed with a negative pressure aspirator (9), the upper end of the tail of the handle (5) is connected with a cable (7), the tail of the cable (7) is connected with a plug (8), and the side of the handle (5) is provided with a plurality of hand control button switches (4).

2. The low-temperature plasma surgical electrode of claim 1, wherein: The electrode rod (2) comprises an insulating sleeve (2-1) and a red copper pipe (2-2), and the insulating sleeve (2-1) is wrapped on the outer circumferential surface of the red copper pipe (2-2).

3. The low-temperature plasma surgical electrode of claim 1, wherein: The electrode cutter head (1) is composed of a metal body (1-3) and a ceramic coating (1-4).

4. The low-temperature plasma surgical electrode of claim 1, wherein: The front end of the electrode cutter head (1) is provided with a first cutting edge (1-1) and a second cutting edge (1-2), the included angle α between the first cutting edge (1-1) and the second cutting edge (1-2) is 90-110°, and the edge included angle β of the first cutting edge (1-1) and the second cutting edge (1-2) is 45°.

5. The low-temperature plasma surgical electrode of claim 1, wherein: The electrode cutter head (1) is fixedly welded on the front end of the electrode rod (2).

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