CN219000541U

CN219000541U - Novel plasma bipolar mucous membrane incision sword

Info

Publication number: CN219000541U
Application number: CN202222936725.4U
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: 2023-05-12
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses a novel plasma bipolar mucous membrane incision 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 a protective shell, one side of the handle is fixedly connected with an electrode joint, the inside of the protective shell is provided with an outer tube, the other end of the outer tube extends to the outside of the protective shell, the inside of the outer tube is provided with a liquid injection cavity, the inside of the liquid injection cavity is provided with an inner tube, the outer surface of the outer tube, which is close to one side of the incision knife, is provided with a negative electrode metal ring, so that the incision knife and the negative electrode metal ring can be respectively electrically connected with the positive electrode and the negative electrode of the electrode joint through a lead, physiological saline is conveyed to the incision knife through a liquid injection port and the liquid injection cavity, the incision knife can realize plasma bipolar energization, and the cutting efficiency and the cutting quality of the device can be greatly improved by utilizing bipolar energization, and the practicability of the device is greatly improved.

Description

Novel plasma bipolar mucous membrane incision sword

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a novel plasma bipolar mucous membrane incision knife.

Background

Endoscopic submucosal dissection (Endoscopic submucosal dissection, ESD) is one procedure that progresses relatively rapidly under digestive endoscopes. The medical resource investment is small, the operation effect is good, so that wide endoscopists can develop, more early digestive tract cancers can be completely resected under the endoscope at one time, the pain of the open surgery and the resection of organs are avoided, and the same treatment effect of the surgery can be achieved by the ESD resected tumor. ESD mainly treats the following digestive tract lesions: (1) early cancer of the digestive tract; (2) large flat polyps; (3) submucosal tumor; (4) operations such as POME operation for cardiac arrest. The specific operation is as follows: after the endoscope determines the lesion position, staining is carried out first, a glycerin fructose solution containing methylene blue is injected under the lesion mucous membrane, and then a needle type incision knife point is used for cutting out the excision boundary. The needle type knife was used for opening and the IT knife was used for cutting and peeling. If bleeding occurs during operation, IT is electrically coagulated by IT knife, TT knife or thermal biopsy forceps, and the specimen is fixed after operation and directly sent to pathology department for pathological examination.

Meanwhile, as an important means in the treatment of digestive tract lesions, in order to prevent perforation in the operation process, doctors often need to first perform injection of submucosal normal saline to raise the position of a lesion, the mucosa cutting operation needs to be replaced after the injection is performed by an injection needle, the injected normal saline in the operation process can be lost along with the operation time, and a great deal of time is wasted in the process of re-injecting the normal saline, and the risk of perforation in the operation is increased because the loss of the normal saline in the operation cannot be timely supplemented. In addition, in clinical operation, the condition that hybridization ESD operation is required is frequently met, and surgical instruments such as an injection needle, a snare, a mucous membrane incision knife and the like are required to be used in hybridization operation, so that a doctor can frequently replace the surgical instruments in the operation process to meet different requirements of each operation. However, frequent surgical instrument replacement is cumbersome and time-consuming, which is unfavorable for the operation of patients, and for this reason, we propose a novel plasma bipolar mucosa incision.

Disclosure of Invention

The utility model aims to provide a novel plasma bipolar mucosa incision 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 mucous membrane of plasma incises sword, includes the handle, one side swing joint of handle has the pull ring, the opposite side fixedly connected with protective housing of handle, one side fixedly connected with electrode joint of handle, the inside of protective housing is provided with the outer tube, the other end of outer tube extends to the outside of protective housing, the inside of outer tube is provided with annotates the liquid chamber, the inside of annotating the liquid chamber is provided with the inner tube, the one end of inner tube passes through cable and pull ring fixed connection, the other end of inner tube extends to the outside of outer tube and fixedly connected with incise the sword, the outer surface that the outer tube is close to one side of incising the sword is provided with negative pole metal ring.

Preferably, the outer surface of the negative electrode metal ring is fixedly connected with an energizing wire, and the other end of the energizing wire is electrically connected with the negative electrode of the electrode joint.

Preferably, the incision sword is including tool bit and handle of a knife, the through-hole has been seted up to the inside of tool bit, the handle of a knife department of incision sword passes through wire and electrode connection's positive pole electric connection.

Preferably, the inner wall of the negative electrode metal ring is provided with a plurality of groups of barbs, and the other ends of the barbs are inserted into the outer tube.

Preferably, the outer surface fixedly connected with ceramic connecting pipe of inner tube, just ceramic connecting pipe and outer tube swing joint, a plurality of evenly distributed's inlet and liquid outlet have been seted up respectively to ceramic connecting pipe's both sides, set up the toper passageway that reduces gradually from left to right internal diameter between inlet and the liquid outlet.

Preferably, one side of the protective housing is fixedly connected with a liquid injection port, and the other end of the liquid injection port is communicated with the liquid injection cavity.

Preferably, the bottom of the inner cavity of the conical channel is fixedly connected with a plurality of trapezoidal blocks, the top of the inner cavity of the conical channel is fixedly connected with a plurality of baffles, and inclined surfaces of the trapezoidal blocks opposite to the baffles are in parallel.

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

1. according to the utility model, the outer tube, the protective shell, the inner tube, the liquid injection cavity, the negative electrode metal ring, the electrode joint and the barb are arranged, so that the device can be used for electrically connecting the cutting knife and the negative electrode metal ring with the positive electrode and the negative electrode of the electrode joint through the lead, and the liquid injection port and the liquid injection cavity are utilized for conveying normal saline to the cutting knife, so that the cutting knife can realize plasma bipolar electrification, in addition, the device is used for fixing the negative electrode metal ring in a mode that the barb is inserted into the outer tube, so that the normal saline in the liquid injection cavity can flow to the negative electrode metal ring through a gap generated by the barb, thereby further improving the electrifying efficiency of the cutting knife, and finally, the cutting efficiency and the cutting quality of the device 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 ceramic connecting pipe, the liquid inlet, the liquid outlet and the conical channel are arranged, so that part of physiological saline in the liquid injection cavity can be conveyed to the outer surface of the cutter handle of the incision cutter, the overall electrifying effect of the incision cutter is better, the incision operation can be better performed, and in addition, the flow rate and the spraying distance of the physiological saline can be accelerated by utilizing the conical channel with gradually reduced inner diameter from left to right, so that the physiological saline can be better sprayed on the whole cutter handle part of the incision cutter.

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 overall internal structure of the present utility model;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2;

FIG. 4 is a cross-sectional view of a ceramic anchor according to the present utility model;

in the figure: 1. a handle; 2. a pull ring; 3. a protective shell; 4. an outer tube; 5. a liquid injection cavity; 6. an inner tube; 7. a guy cable; 8. cutting open; 9. a negative electrode metal ring; 10. a barb; 11. a ceramic connecting pipe; 12. a liquid inlet; 13. a liquid outlet; 14. a tapered channel; 15. a liquid injection port; 16. an electrode joint; 17. a trapezoid block; 18. and a baffle.

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. 1-4, the utility model provides a novel plasma bipolar mucosa incision knife, which comprises a handle 1, 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 a protective shell 3, one side of the handle 1 is fixedly connected with an electrode joint 16, the inside of the protective shell 3 is provided with an outer tube 4, the other end of the outer tube 4 extends to the outside of the protective shell 3, the inside of the outer tube 4 is provided with a liquid injection cavity 5, the inside of the liquid injection cavity 5 is provided with an inner tube 6, one end of the inner tube 6 is fixedly connected with the pull ring 2 through a pull rope 7, the other end of the inner tube 6 extends to the outside of the outer tube 4 and is fixedly connected with an incision knife 8, the outer surface of one side of the outer tube 4, which is close to the incision knife 8, is provided with a negative electrode metal ring 9, wherein the inner tube 6 and the handle 1 are hollow, and medical staff can push the inner tube 6 to move in the liquid injection cavity 5 by pulling the pull ring.

In a preferred embodiment, the outer surface of the negative electrode metal ring 9 is fixedly connected with an energizing wire, and the other end of the energizing wire is electrically connected with the negative electrode of the electrode joint 16, wherein the outer surface of the energizing wire is wrapped with an insulating sleeve, so that the occurrence of a short circuit phenomenon can be prevented.

In a preferred embodiment, the cutting knife 8 comprises a knife head and a knife handle, wherein a through hole is formed in the knife head, the knife handle of the cutting knife 8 is electrically connected with the positive electrode of the electrode joint 16 through a wire, the through hole of the knife head can only spray physiological saline in a specific direction, and an insulating sleeve for preventing the short circuit of the wire is also arranged on the outer surface of the wire.

In a preferred embodiment, the inner wall of the negative metal ring 9 is provided with a plurality of groups of barbs 10, the other ends of the barbs 10 are inserted into the outer tube 4, and physiological saline in the liquid injection cavity 5 can flow to the negative metal ring 9 by utilizing gaps generated between the barbs 10 and the outer tube 4, so that plasma electrification can be better performed between the negative metal ring 9 and the incision knife 8, and the electrification efficiency of the incision knife 8 can be further improved.

In a preferred embodiment, the ceramic connecting pipe 11 is fixedly connected to the outer surface of the inner pipe 6, the ceramic connecting pipe 11 is movably connected with the outer pipe 4, a plurality of evenly distributed liquid inlets 12 and liquid outlets 13 are respectively formed in two sides of the ceramic connecting pipe 11, tapered channels 14 with gradually reduced inner diameters from left to right are formed between the liquid inlets 12 and the liquid outlets 13, physiological saline flowing to the ceramic connecting pipe 11 can enter the tapered channels 14 with the narrower inner diameters through the liquid inlets 12, and then is sprayed out to the cutter handle of the cutter 8 through the liquid outlets 13, so that the cutter 8 can be better electrified for cutting.

In a preferred embodiment, one side of the protective housing 3 is fixedly connected with a liquid injection port 15, the other end of the liquid injection port 15 is communicated with the liquid injection cavity 5, and physiological saline can be injected into the liquid injection cavity 5 by using the liquid injection port 15, so that the smooth completion of the operation is assisted.

In a preferred embodiment, the bottom of the inner cavity of the conical channel 14 is fixedly connected with a plurality of trapezoid blocks 17, the top of the inner cavity of the conical channel 14 is fixedly connected with a plurality of baffles 18, the inclined planes of the trapezoid blocks 17 opposite to the baffles 18 are in a parallel state, physiological saline can be conveyed upwards by utilizing the inclined planes on the left side of the trapezoid blocks 17, and then the physiological saline flowing upwards in an inclined manner is blocked by utilizing the baffles, so that the physiological saline can be returned to the inclined plane on the right side of the trapezoid blocks 17, the flow rate of the physiological saline can be accelerated under the action of gravitational potential energy, and the spraying distance of the physiological saline can be further increased.

The working principle of the utility model is as follows: when in use, medical staff stretches the outer tube 4 into a part to be cut off in a patient, then pushes the inner tube 6 to move in the liquid injection cavity 5 through the pull ring 2 and the pull rope 7, after the inner tube 6 drives the cutting knife 8 to move to an operation position, the medical staff injects physiological saline into the liquid injection cavity 5 through the liquid injection port 15, and enables the physiological saline to flow into the inner tube 6 and the ceramic connecting tube 11 through the liquid injection cavity 5, then electrifies the negative electrode metal ring 9 and the cutting knife 8 through the electrode joint 16, at the moment, the physiological saline in the inner tube 6 is conveyed to the cutting knife 8 through the inner cavity and sprayed out through the through hole in the cutting knife 8, and the physiological saline flowing to the ceramic connecting tube 11 enters the conical channel 14 with the narrower and narrower inner diameter through the liquid inlet 12, and can be conveyed upwards by utilizing the inclined plane on the left side of the trapezoid block 17, then the baffle is used for blocking the physiological saline flowing upwards in an inclined way, so that the physiological saline can be folded back to the inclined plane on the right side of the trapezoid block 17, the flow rate of the physiological saline can be accelerated under the action of gravitational potential energy, then the physiological saline is sprayed out to the knife handle of the slitting knife 8 through the liquid outlet 13, so that the slitting knife 8 can perform better electrified cutting, in addition, as the barbs 10 on the inner wall of the negative electrode metal ring 9 are inserted into the outer tube 4, the physiological saline in the liquid injection cavity 5 can flow to the negative electrode metal ring 9 through the gaps generated by the barbs 10 on the outer tube 4 during electrifying, so that plasma electrifying can be performed better between the negative electrode metal ring 9 and the slitting knife 8, further the electrifying efficiency of the slitting knife 8 can be further improved, and finally the cutting efficiency and the cutting quality of the device can be greatly improved by utilizing a bipolar electrifying mode to perform cutting, thereby greatly improving the practicability 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 bipolar mucous membrane incision of plasma, includes handle (1), its characterized in that: one side swing joint of handle (1) has pull ring (2), the opposite side fixedly connected with protective housing (3) of handle (1), one side fixedly connected with electrode tap (16) of handle (1), the inside of protective housing (3) is provided with outer tube (4), the other end of outer tube (4) extends to the outside of protective housing (3), the inside of outer tube (4) is provided with annotates liquid chamber (5), the inside of annotating liquid chamber (5) is provided with inner tube (6), the one end of inner tube (6) is through cable (7) and pull ring (2) fixed connection, the other end of inner tube (6) extends to the outside of outer tube (4) and fixedly connected with slitting knife (8), the surface of one side that outer tube (4) is close to slitting knife (8) is provided with negative pole metal ring (9).

2. The novel plasma bipolar mucosal incision according to claim 1, wherein: the outer surface of the negative electrode metal ring (9) is fixedly connected with an energizing wire, and the other end of the energizing wire is electrically connected with the negative electrode of the electrode joint (16).

3. The novel plasma bipolar mucosal incision according to claim 1, wherein: the cutting knife (8) comprises a knife head and a knife handle, a through hole is formed in the knife head, and the knife handle of the cutting knife (8) is electrically connected with the positive electrode of the electrode joint (16) through a wire.

4. The novel plasma bipolar mucosal incision according to claim 1, wherein: the inner wall of the negative pole metal ring (9) is provided with a plurality of groups of barbs (10), and the other ends of the barbs (10) are inserted into the outer tube (4).

5. The novel plasma bipolar mucosal incision according to claim 1, wherein: the ceramic connecting pipe is characterized in that the ceramic connecting pipe (11) is fixedly connected to the outer surface of the inner pipe (6), the ceramic connecting pipe (11) is movably connected with the outer pipe (4), a plurality of evenly distributed liquid inlets (12) and liquid outlets (13) are respectively formed in two sides of the ceramic connecting pipe (11), and a conical channel (14) with gradually reduced inner diameter from left to right is formed between the liquid inlets (12) and the liquid outlets (13).

6. The novel plasma bipolar mucosal incision according to claim 1, wherein: one side of the protective shell (3) is fixedly connected with a liquid injection port (15), and the other end of the liquid injection port (15) is communicated with the liquid injection cavity (5).

7. The novel plasma bipolar mucosal resection according to claim 5, wherein: the inner cavity bottom of the conical channel (14) is fixedly connected with a plurality of trapezoid blocks (17), the inner cavity top of the conical channel (14) is fixedly connected with a plurality of baffles (18), and inclined surfaces of the trapezoid blocks (17) opposite to the baffles (18) are in parallel states.