CN212879552U

CN212879552U - Single-ring plasma bipolar electrode

Info

Publication number: CN212879552U
Application number: CN202020484250.8U
Authority: CN
Inventors: 焦海军; 戴钟琪; 俞海滨
Original assignee: Dedao Medical Equipment Hangzhou Co ltd
Current assignee: Dedao Medical Equipment Hangzhou Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-04-06
Anticipated expiration: 2030-04-03

Abstract

The utility model discloses a single-ring plasma bipolar electrode, which relates to the field of medical equipment and comprises support tubes, an electric cutting ring, insulation tubes and clamping tubes, wherein the front section parts of the two support tubes are arranged in parallel, the rear section parts are arranged side by side in a laminating way and fixed by a bracket, plastic tubes are arranged on the peripheries of the tail parts of the two support tubes, the front ends of the two support tubes are respectively fixedly connected with the two ends of the electric cutting ring through two ceramic tubes, the insulation tubes are wrapped on the peripheries of the joints of the support tubes and the ceramic tubes, a plurality of small holes are uniformly distributed on the insulation tubes, the clamping tubes are arranged on the peripheries of the rear section parts of the two support tubes, the clamping tubes are electrically connected with the support tubes, and buckles; the tail end of the plastic pipe is provided with a tail tip, and the tail tip is electrically connected with the electric cutting ring. The utility model has the advantages that: the small holes uniformly distributed on the insulating tube increase the contact area of the supporting tube and physiological saline water, and avoid the direct contact of the supporting tube and the endoscope, so that the high-frequency current flowing through the supporting tube finally flows to the ground, and the safety of operators is ensured.

Description

Single-ring plasma bipolar electrode

Technical Field

The utility model relates to the field of medical equipment, concretely relates to plasma bipolar electrode of monocycle.

Background

Prostate hypertrophy and hyperplasia are common diseases with extremely high incidence in middle-aged and elderly men, and surgical resection is the most effective treatment method. The traditional open surgery is to make an incision in the patient's lower abdomen and then to open the bladder to remove the hyperplastic prostate, which is very damaging to the normal urethral anatomy. Moreover, most of the prostatic hyperplasia diseases are old people, and other serious diseases are often accompanied with the diseases, and the wounds caused by open surgery are difficult to endure, so various minimally invasive transurethral methods for treating prostatic hyperplasia are greatly emphasized by urologists. The invention relates to transurethral prostate resectoscope and resectoscope which is invented in developed countries in Europe and America, and the operation does not need to be performed on a human body, so that the wound is greatly reduced, and the resectoscope and resectoscope are recognized as the 'gold standard' for treating prostatic hyperplasia at present.

The resectoscope generally comprises an endoscope, an inner sheath, an outer sheath, an operating hand piece and an electrode, wherein the electrode is parallelly sleeved below a scope rod of the endoscope through a fixed sliding sleeve on the rod of the resectoscope, the rear end of the electrode is inserted into a fixed clamping seat of the operating hand piece, the operator operates the operating hand piece to enable the electrode to slide back and forth, an energy generator transmits high-frequency energy to the front end of the electrode through an electrode connecting lead, and the front end of the electrode contacts a target tissue to quickly vaporize and separate the tissue so as to realize the resection of prostatic hyperplasia.

According to the Chinese patent number: 201210293199.2, it provides a bipolar electrode of resectoscope, the exposed surface is covered with a layer of black insulating tube with thickness of 0.05 mm-0.3 mm, the length of the exposed metal of the front section of two metal tubes of the loop electrode (called as support tube in this patent) is 3 mm-15 mm, this is to prevent the exposed metal part of the loop electrode from directly contacting with the endoscope of resectoscope, prevent the high frequency current flowing through the loop electrode from flowing through the endoscope, then flow through the operating hand piece of resectoscope, finally flow into the ground through the operator, this kind of high frequency leakage current flowing through the operator has certain injury to the operator. In the patent, the loop electrode still has a metal exposed surface of 3 mm-15 mm, and the exposed loop electrode cannot be completely prevented from directly contacting the endoscope in the operation process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a monocycle plasma bipolar electrode, have simple structure, safe and reliable, improve the advantage of operation efficiency, improvement operation effect.

The purpose of the utility model is accomplished through following technical scheme: the single-ring plasma bipolar electrode mainly comprises supporting tubes, an electric cutting ring, insulating tubes and clamping tubes, wherein the front sections of the two supporting tubes are branched and arranged in parallel, the rear sections of the two supporting tubes are attached side by side and fixed through a support, plastic tubes are arranged on the peripheries of the tail parts of the two supporting tubes, the front ends of the two supporting tubes are fixedly connected to the two ends of the semicircular electric cutting ring through two ceramic tubes respectively, the insulating tubes are wrapped on the peripheries of the joints of the supporting tubes and the ceramic tubes and extend to the attaching positions of the two supporting tubes, a plurality of small holes are uniformly distributed in the insulating tubes, the clamping tubes are sleeved on the peripheries of the rear sections of the two supporting tubes, the clamping tubes are electrically connected with the supporting tubes, and the clamping tubes are provided with buckles for being matched with endoscope rods; the tail end of the plastic pipe is provided with a tail tip, and the tail tip is electrically connected with the electric cutting ring.

As a preferable technical scheme, the aperture of the small hole is 0.5 mm-1 mm, the hole interval is 1 mm-1.5 mm, and the sum of the areas of all the small holes is 6-20 times of the surface area of the electrotomy ring.

As a further technical scheme, a plurality of groups of convex points are arranged on the inner surface of the buckle and form point-surface contact with an endoscope rod, so that the control is convenient; as a preferred technical scheme, the convex points have 3 groups, and each group is provided with 5 convex points.

The utility model has the advantages that: the stainless steel supporting tube exposed on the surface is completely wrapped by the black insulating tube, small holes are uniformly distributed on the surface of the insulating tube, the surface area of each small hole is 6-20 times of that of the electric cutting ring, the contact area of the supporting tube and physiological saline water is increased, the supporting tube can be completely prevented from being in direct contact with an endoscope, and therefore the situation that high-frequency current flowing through the supporting tube flows to the human body through the endoscope is avoided, the high-frequency current finally flows to the ground, and the safety of operators is guaranteed. The inner surface of the buckle is provided with a plurality of groups of convex points which form point-surface contact with the endoscope rod, so that the frictional resistance between the buckle and the endoscope rod is reduced, and the operation is more smooth; there are 3 sets of salient points, and 5 are arranged in each set.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a plan view of the structure after the endoscope is mounted.

Fig. 3 is a bottom view of the structure after installation of the endoscope.

Fig. 4 is a sectional view a-a of fig. 2.

Description of reference numerals: the endoscope comprises a support tube 1, a plastic tube 2, a ceramic tube 3, an electric cutting ring 4, an insulating tube 5, a small hole 6, a bracket 7, a clamping tube 8, a tail tip 9, a buckle 10, a convex point 11 and an endoscope rod 12.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in the attached drawing, the single-ring plasma bipolar electrode mainly comprises support tubes 1, electrotomy rings 4, insulating tubes 5 and clamp tubes 8, wherein the front sections of the two support tubes 1 are branched and arranged in parallel, the rear sections of the two support tubes 1 are attached side by side and fixed through supports 7, plastic tubes 2 are arranged on the peripheries of the tail parts of the two support tubes 1, the front ends of the two support tubes 1 are fixedly connected to the two ends of the semicircular electrotomy rings 4 through two ceramic tubes 3 respectively, black insulating tubes 5 wrap the peripheries of the joints of the support tubes 1 and the ceramic tubes 3 and extend to the attaching parts of the two support tubes 1, a plurality of small holes 6 are uniformly distributed on the insulating tubes 5, the clamp tubes 8 are sleeved on the peripheries of the rear sections of the two support tubes 1, the clamp tubes 8 are electrically connected with the support tubes 1, and buckles 10 are arranged on the clamp tubes 8 and used for being matched with endoscope rods; the tail end of the plastic pipe 2 is provided with a tail tip 9, and the tail tip 9 is electrically connected with the electric cutting ring 4.

As a preferable technical scheme, the aperture of the small hole 6 is 0.5 mm-1 mm, the hole distance is 1 mm-1.5 mm, and the sum of the areas of all the small holes 6 is 6-20 times of the surface area of the electric cutting ring 4.

As a preferable technical scheme, 3 groups of convex points 11 (5 are arranged on each group) are arranged on the inner surface (the left side, the right side and the bottom) of the buckle 10 and form point-surface contact with the endoscope rod 12, so that the frictional resistance between the buckle and the endoscope rod is reduced, and the operation is more smooth.

The utility model discloses a working process: during operation, the utility model is fixed on an endoscope rod 12 through a buckle 10, a lead is connected at the tail tip 9, high-frequency energy is transmitted to the electric cutting ring 4 through the tail tip 9, the electric cutting ring 4 contacts target tissues to quickly vaporize and separate the tissues, thereby realizing the excision of prostatic hyperplasia; due to the existence of the small holes 6 on the insulating tube 5, the sum of the areas of the small holes 6 is 6-20 times of the surface area of the electrotomy ring 4, the contact area of the physiological saline and the supporting tube 1 can be effectively increased, the supporting tube 1 is prevented from being in direct contact with the endoscope rod 12, high-frequency current flowing through the supporting tube 1 is further prevented from flowing to a human body through the endoscope rod 12, and finally the high-frequency current flows to the ground, so that the safety of operators is guaranteed; in addition, the arrangement of the convex points 11 enables the buckle 10 and the endoscope rod 12 to form point-surface contact, so that the friction force is reduced, and the operator can easily operate the resectoscope to slide back and forth in the operation process.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. A single ring plasma bipolar electrode, comprising: mainly comprises supporting tubes (1), an electric cutting ring (4), an insulating tube (5) and a clamping tube (8), wherein the front sections of the two supporting tubes (1) are branched and arranged in parallel, the rear sections are attached side by side and fixed by a bracket (7), the plastic pipes (2) are arranged on the periphery of the tail parts of the two supporting tubes (1), the front ends of the two supporting tubes (1) are respectively and fixedly connected with the two ends of the semicircular electrotomy ring (4) through two ceramic tubes (3), the periphery of the joint of the support pipes (1) and the ceramic pipe (3) is wrapped with an insulating pipe (5) and extends to the joint of the two support pipes (1), a plurality of small holes (6) are uniformly distributed on the insulating tube (5), the periphery of the rear section parts of the two supporting tubes (1) is sleeved with a clamping tube (8), the clamping tube (8) is electrically connected with the supporting tube (1), and a buckle (10) is arranged on the clamping tube (8) and is used for being matched and installed with an endoscope rod (12); the tail end of the plastic pipe (2) is provided with a tail tip (9), and the tail tip (9) is electrically connected with the electric cutting ring (4).

2. The single ring plasma bipolar electrode of claim 1, wherein: the aperture of the small holes (6) is 0.5 mm-1 mm, the hole spacing is 1 mm-1.5 mm, and the sum of the areas of all the small holes (6) is 6-20 times of the surface area of the electric cutting ring (4).

3. The single ring plasma bipolar electrode of claim 1, wherein: the inner surface of the buckle (10) is provided with a plurality of groups of convex points (11) which form point-surface contact with the endoscope rod (12) and are convenient to control.

4. The single ring plasma bipolar electrode of claim 3, wherein: the convex points (11) have 3 groups, and each group is provided with 5 convex points.