CN219250400U

CN219250400U - Novel plasma bipolar nipple incision sword

Info

Publication number: CN219250400U
Application number: CN202222936684.9U
Authority: CN
Inventors: 吴自斌; 周洲
Original assignee: Shaanxi Xishu Xinchuang Medical Technology Co ltd
Current assignee: Shaanxi Xishu Xinchuang Medical Technology Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-06-27
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses a novel plasma bipolar nipple cutting knife which comprises a handle, wherein one side of the handle is movably connected with a pull ring, the other side of the handle is fixedly connected with an outer tube, the outer surface of the handle is fixedly connected with an electrode interface, the outer surfaces of two sides of the outer tube are respectively and fixedly connected with a liquid injection port and a wire guide port, an insulating tube is arranged in the outer tube, a wire guide cavity, a liquid injection cavity, a drawing cavity, a negative electrode energizing cavity and a positive electrode energizing cavity are arranged on the side wall of the insulating tube, and steel wires are arranged in the negative electrode energizing cavity.

Description

Novel plasma bipolar nipple incision sword

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a novel plasma bipolar nipple cutting knife.

Background

Endoscopic Retrograde Cholangiopancreatography (ERCP) refers to a technique of inserting a duodenal mirror into a duodenal drop portion to find a duodenal papilla, inserting a contrast catheter into a biopsy tube to a papilla opening portion, injecting a contrast agent, and then performing x-ray radiography to display a pancreatic bile duct, and deriving ERCP stone extraction, ERCP treatment, ERCP exploration and other operations on the basis of ERCP.

Wherein the endoscopic papillary sphincterotomy (EST) is a treatment technique which is further developed on the basis of the diagnostic technique of endoscopic retrograde cholangiopancreatography and which cuts the end portion of the duodenal papilla sphincter under the endoscope by using a high-frequency electric incision knife. The papillary sphincter incision knife is an important surgical instrument of ERCP, and the incision knife is used for incising the duodenal papilla sphincter in order to facilitate intubation, stone extraction, stent implantation and the like.

The existing nipple cutting knife is a working principle of monopole high-frequency power on, the principle is that after a user pulls a bow, an arch wire props against the duodenal papilla sphincter to conduct power on cutting, the monopole principle often leads to poor cutting efficiency and serious thermal damage, and therefore, a novel plasma bipolar nipple cutting knife is provided.

Disclosure of Invention

The utility model aims to provide a novel plasma bipolar nipple cutting knife so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a novel bipolar nipple of plasma cuts sword, includes the handle, one side swing joint of handle has the pull ring, the opposite side fixedly connected with outer tube of handle, the surface fixedly connected with electrode interface of handle, the both sides surface of outer tube is fixedly connected with notes liquid mouth and seal wire mouth respectively, the inside of outer tube is provided with the insulating tube, the lateral wall of insulating tube is provided with seal wire chamber, notes liquid chamber, broach chamber, negative pole circular telegram chamber and positive pole circular telegram chamber, the inside in negative pole circular telegram chamber is provided with the steel wire, the inside in positive pole circular telegram chamber is provided with the electricity and shreds.

Preferably, one end of the steel wire is electrically connected with the negative electrode of the electrode interface through an electrified lead, and the other end of the steel wire extends to the outside of the insulating tube and is fixedly connected with a metal strip.

Preferably, one end of the electric shredding is electrically connected with the positive electrode of the electrode interface through a wire, the other end of the electric shredding penetrates through the insulating tube and is fixedly connected with the outer wall of the insulating tube, and the electric shredding is in an arc-shaped arrangement with the insulating tube in a tightening state.

Preferably, the cooling cavity has been seted up to the inside of outer tube, the top of outer tube is provided with the circulative cooling case, the both sides of circulative cooling case are outlet pipe and back flow fixedly connected with respectively, the other end of outlet pipe and back flow all extends to the cooling cavity inside, the top of circulative cooling case is provided with the water pump interface.

Preferably, the inside rotation of circulative cooling case is connected with the axis of rotation, the week side fixedly connected with of axis of rotation is a plurality of driving pieces, the inside of outlet pipe and back flow all is provided with the check valve.

Preferably, the outer surface of the insulating tube bow-type structure is provided with a developing ring.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through arranging the insulating tube, the outer tube, the wire guide cavity, the liquid injection cavity, the pull bow cavity, the negative electrode electrifying cavity, the positive electrode electrifying cavity, the steel wire, the electric shredding and the metal strip, the device can realize plasma bipolar electrifying through the steel wire and the electric shredding, and the cutting efficiency and the cutting quality can be greatly improved by utilizing bipolar electrifying for cutting, so that the practicability of the device is greatly improved.

2. According to the utility model, the circulating cooling box, the water pump interface, the water outlet pipe, the return pipe, the rotating shaft, the driving piece and the cooling cavity are arranged, so that the device can cool the electric shredding and the steel wire in the electrified state through the cooling mechanism, and the heat damage generated during cutting of the device is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of the whole structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the circulation cooling tank of the present utility model;

FIG. 3 is a cross-sectional view of the connecting portion of the insulating tube and the outer tube of the present utility model;

in the figure: 1. a handle; 2. a pull ring; 3. an outer tube; 4. an insulating tube; 5. a guidewire lumen; 6. a liquid injection cavity; 7. a draw bow cavity; 8. a negative electrode energizing cavity; 9. a positive electrode energizing cavity; 10. a steel wire; 11. electrically shredding; 12. a metal strip; 13. a guide wire port; 14. a liquid injection port; 15. an electrode interface; 16. a circulation cooling box; 17. a water pump interface; 18. a water outlet pipe; 19. a return pipe; 20. a rotating shaft; 21. a driving plate; 22. a cooling chamber; 23. and a developing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model provides a novel plasma bipolar nipple cutting knife, which comprises a handle 1, wherein one side of the handle 1 is movably connected with a pull ring 2, the other side of the handle 1 is fixedly connected with an outer tube 3, the outer surface of the handle 1 is fixedly connected with an electrode interface 15, the outer surfaces of two sides of the outer tube 3 are respectively fixedly connected with a liquid injection port 14 and a wire guide port 13, an insulating tube 4 is arranged inside the outer tube 3, a wire guide cavity 5, a liquid injection cavity 6, a pull bow cavity 7, a negative electrode electrifying cavity 8 and a positive electrode electrifying cavity 9 are arranged on the side wall of the insulating tube 4, a steel wire 10 is arranged inside the negative electrode electrifying cavity 8, an electric wire cutting 11 is arranged inside the positive electrode electrifying cavity 9, and the handle 1 and the wire guide port 13 are arranged inside the electrode electrifying cavity 9; the drawing bow cavity 7 is communicated, and the drawing bow cavity 7 is communicated with the positive electrode electrifying cavity 9, so that electrifying of the electric wire 11 can be conveniently performed, and the wire guide cavity 5, the liquid injection cavity 6 and the drawing bow cavity 7 are not communicated with each other. In a preferred embodiment, one end of the steel wire 10 is electrically connected with the negative electrode of the electrode interface 15 through an energizing wire, and the other end of the steel wire 10 extends to the outside of the insulating tube 4 and is fixedly connected with the metal strip 12, wherein the negative electrode energizing cavity 8 is communicated with the electrode interface 15, thereby facilitating energizing of the steel wire 10.

In a preferred embodiment, one end of the electric wire 11 is electrically connected with the positive electrode of the electrode interface 15 through a wire, the other end of the electric wire 11 penetrates through the insulating tube 4 and is fixedly connected with the outer wall of the insulating tube 4, and the electric wire 11 is arranged in an arch shape with the insulating tube 4 in a tightening state, so that the electric wire 11 can cut a nipple better in an electrified state, and cutting efficiency is greatly improved.

In a preferred embodiment, the cooling cavity 22 is provided in the outer tube 3, the circulation cooling tank 16 is provided at the top of the outer tube 3, the water outlet pipe 18 and the return pipe 19 are fixedly connected to two sides of the circulation cooling tank 16 respectively, the other ends of the water outlet pipe 18 and the return pipe 19 extend into the cooling cavity 22, the water pump interface 17 is provided at the top of the circulation cooling tank 16, a certain amount of cooling water is injected into the circulation cooling tank 16 through the water pump interface 17, when the cooling water enters the circulation cooling tank 16, the driving piece 21 is pushed to rotate under the action of water pressure, when the driving piece 21 starts to rotate under the action of water pressure, the water pump interface 17 is closed, since the circulation cooling tank 16 is internally divided into four sections by the driving piece 21, the outer surfaces of two sections are respectively connected with the water outlet pipe 18 which can only output water and the return pipe 19 which can only input water, therefore when the driving piece 21 rotates, the cooling water in the circulation cooling piece 16 can enter the cooling cavity 22 through the water outlet pipe 18, and the fresh cooling water in the cooling cavity 22 can be injected into the cooling cavity 22 again through the return pipe 19 after the fresh cooling water in the same amount enters the cooling cavity 22.

In a preferred embodiment, the rotary shaft 20 is rotatably connected to the inside of the circulation cooling tank 16, the plurality of driving plates 21 are fixedly connected to the peripheral side surface of the rotary shaft 20, the water outlet pipe 18 and the return pipe 19 are both provided with one-way valves, the water outlet pipe 18 can only outlet water by utilizing the one-way circulation of the one-way valves, and the return pipe 19 can only inlet water, so that the cooling water in the circulation cooling tank 16 can be circulated better, and the practicability of the device is greatly improved.

In a preferred embodiment, the outer surface of the bow-shaped structure of the insulating tube 4 is provided with a developing ring 23, and the position of the bow-shaped structure can be better and conveniently determined by medical staff under the x-ray through the developing ring 23, so that the cutting accuracy is greatly improved.

The working principle of the utility model is as follows: when in use, medical staff stretches the insulating tube 4 into the part to be cut off in a patient, then pulls the electric wire cutting 11 through the pull ring 2, so that the electric wire cutting 11 can move back and forth in the draw bow cavity 7, when the electric wire cutting 11 is in a tightening state, the electric wire cutting 11 can drive the insulating tube 4 to bend into a bow shape, at the moment, the medical staff firstly injects a large amount of physiological saline through the liquid injection port 14, then connects an external power supply through the electrode port 15, because the electric wire cutting 11 and the steel wire 10 are soaked in the physiological saline, the electric wire cutting 11 and the steel wire 10 can be in a plasma bipolar power-on state after the electrode port 15 is connected, thereby greatly improving the cutting efficiency and the cutting quality of the electric wire cutting 11, and when in power-on cutting, the medical staff can inject a certain amount of cooling water into the circulating cooling box 16 through the water pump port 17, when the cooling water enters the circulation cooling box 16, the driving piece 21 is pushed to rotate under the action of water pressure, and when the driving piece 21 starts to rotate under the action of water pressure, the water pump connector 17 can be closed, because the inside of the circulation cooling box 16 is equally divided into four sections by the driving piece 21, and the outer surfaces of the two sections are respectively connected with the water outlet pipe 18 which can only outlet water and the return pipe 19 which can only inlet water, when the driving piece 21 rotates, the cooling water in the circulation cooling box 16 enters the cooling cavity 22 through the water outlet pipe 18, because the space in the cooling cavity 22 is constant, the fresh cooling water in the water outlet pipe 18 enters the cooling cavity 22, the same amount of old cooling water in the cooling cavity 22 is reinjected into the circulation cooling box 16 through the return pipe 19, and the circulation cooling box is reciprocated, so that the device can cool the electric wire 11 and the steel wire 10 in the electrified state through the cooling mechanism, thereby greatly reducing the thermal damage generated during the cutting of the device.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a novel plasma bipolar nipple incision sword, includes handle (1), its characterized in that: one side swing joint of handle (1) has pull ring (2), the opposite side fixedly connected with outer tube (3) of handle (1), the surface fixedly connected with electrode interface (15) of handle (1), the both sides surface of outer tube (3) is fixedly connected with notes liquid mouth (14) and seal wire mouth (13) respectively, the inside of outer tube (3) is provided with insulating tube (4), the lateral wall of insulating tube (4) is provided with seal wire chamber (5), annotates liquid chamber (6), draws bow chamber (7), negative pole circular telegram chamber (8) and positive pole circular telegram chamber (9), the inside of negative pole circular telegram chamber (8) is provided with steel wire (10), the inside of positive pole circular telegram chamber (9) is provided with electric wire (11).

2. A novel plasma bipolar nipple cutting knife according to claim 1, wherein: one end of the steel wire (10) is electrically connected with the negative electrode of the electrode interface (15) through an electrified lead, and the other end of the steel wire (10) extends to the outside of the insulating tube (4) and is fixedly connected with a metal strip (12).

3. A novel plasma bipolar nipple cutting knife according to claim 1, wherein: one end of the electric shredding (11) is electrically connected with the positive electrode of the electrode interface (15) through a wire, the other end of the electric shredding (11) penetrates through the insulating tube (4) and is fixedly connected with the outer wall of the insulating tube (4), and the electric shredding (11) and the insulating tube (4) are in an arc-shaped arrangement under a tightening state.

4. A novel plasma bipolar nipple cutting knife according to claim 1, wherein: the cooling cavity (22) has been seted up to the inside of outer tube (3), the top of outer tube (3) is provided with circulation cooling case (16), the both sides of circulation cooling case (16) are outlet pipe (18) and back flow (19) fixedly connected with respectively, the other end of outlet pipe (18) and back flow (19) all extends to cooling cavity (22) inside, the top of circulation cooling case (16) is provided with water pump interface (17).

5. A novel plasma bipolar nipple cutting knife according to claim 4, wherein: the inside rotation of circulative cooling case (16) is connected with axis of rotation (20), the week side fixedly connected with of axis of rotation (20) is a plurality of driving piece (21), the inside of outlet pipe (18) and back flow (19) all is provided with the check valve.

6. A novel plasma bipolar nipple cutting knife according to claim 1, wherein: the outer surface of the bow-shaped structure of the insulating tube (4) is provided with a developing ring (23).