CN114569234A

CN114569234A - Multifunctional snare for endoscopic surgery

Info

Publication number: CN114569234A
Application number: CN202210217660.XA
Authority: CN
Inventors: 韩文鹏; 刘静
Original assignee: Qingdao Chengyang Peoples Hospital
Current assignee: Qingdao Chengyang Peoples Hospital
Priority date: 2021-11-19
Filing date: 2022-03-08
Publication date: 2022-06-03

Abstract

The invention discloses a multifunctional snare for endoscopic surgery, which comprises: handle, outer sheath pipe, interior sheath pipe, fulgerizing lasso and clamp, be provided with first slider of slidable and second slider on the handle, interior sheath pipe is inserted in the outer sheath pipe, outer sheath pipe with interior sheath pipe all sets up on the handle, the clamp sets up the free tip of interior sheath pipe, fulgerizing lasso cover is in the outside of interior sheath pipe, first slider is connected with the pincers of pressing from both sides through first manipulation spare, the second slider is connected with the pincers of pressing from both sides through the second manipulation spare, first manipulation spare is located in the interior sheath pipe, the second manipulation spare is located outer sheath pipe with between the interior sheath pipe. The realization makes things convenient for medical personnel to carry the polyp with accurate placing electrocautery lasso, and then reduces the operation degree of difficulty and effectual improvement treatment.

Description

Multifunctional snare for endoscopic surgery

Technical Field

The invention relates to the technical field of medical instruments, in particular to a multifunctional snare for endoscopic surgery.

Background

Gastroscopy is a routine medical examination method, which is a first choice examination method for upper digestive tract lesions, and is a slender and flexible tube extending into the stomach, so that doctors can directly observe the lesions of esophagus, stomach and duodenum, and can further clearly diagnose suspicious lesion parts by performing pathological biopsy and cytological examination. Meanwhile, when the gastroscope is carried out, other equipment is combined, and the treatment can be directly carried out, such as: under the direct vision of the gastroscope, the polyp is cut off by a high-frequency electric knife. In the actual operation process, as the surface of the stomach is fully provided with folds, partial polyps are easily shielded by the folds, at the moment, an injection needle needs to be firstly inserted into the folds around the polyps, physiological saline is injected into the folds through the injection needle so that the polyps can be completely protruded, and then the polyps are sleeved by an electrocautery ferrule and are cut off by high-frequency electrocoagulation. However, when a medical worker cuts off polyps, the electrocautery ferrule needs to be accurately sleeved on the root of the polyps, and the polyps are soft and easily blocked by surrounding tissues, so that the operation difficulty of the medical worker is high. In view of this, how to design a technique for facilitating the operation and improving the treatment effect is the technical problem to be solved by the present invention.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the multifunctional snare for endoscopic surgery is provided, so that medical personnel can clamp polyp conveniently to accurately place an electrocautery ring, the surgery difficulty is reduced, and the treatment effect is effectively improved.

The technical scheme provided by the invention is that the multifunctional snare for endoscopic surgery comprises: handle, outer sheath pipe, interior sheath pipe, fulgerizing lasso and clamp, be provided with first slider of slidable and second slider on the handle, interior sheath pipe is inserted in the outer sheath pipe, outer sheath pipe with interior sheath pipe all sets up on the handle, the clamp sets up the free tip of interior sheath pipe, fulgerizing lasso cover is in the outside of interior sheath pipe, first slider is connected with the pincers of pressing from both sides through first manipulation spare, the second slider is connected with the pincers of pressing from both sides through the second manipulation spare, first manipulation spare is located in the interior sheath pipe, the second manipulation spare is located outer sheath pipe with between the interior sheath pipe.

Furthermore, the first manipulating part is an infusion tube, one end of the infusion tube is connected with the first sliding block, the other end of the infusion tube is provided with a needle head, and the first sliding block is provided with a liquid injection port communicated with the infusion tube.

Furthermore, the clamp comprises two clamping pieces which are oppositely arranged, the clamping pieces are rotatably arranged at the end part of the inner sheath tube, and the inner end part of the clamping piece is connected to the infusion tube.

Furthermore, the tip of interior sheath pipe is provided with two breachs, the clamping piece rotationally sets up in corresponding in the breach.

Further, the clamping piece is an elastic clamping plate.

Furthermore, a power supply connector is further arranged on the handle, the second control member is a control steel wire, and the power supply connector is connected with the electrocautery ferrule through the control steel wire.

Further, the inner wall of sheath pipe is provided with the wiring pipe, it is located to control the steel wire in the wiring pipe.

Compared with the prior art, the invention has the advantages and positive effects that: the multifunctional snare for endoscopic surgery provided by the invention has the advantages that by adopting the structural form of the inner sheath tube and the outer sheath tube, the electrocautery sheath is sleeved outside the inner sheath tube, the clamp is arranged at the end part of the inner sheath tube, in the actual surgery operation process, the polyp to be treated can be clamped and positioned by the clamp, then, the electrocautery sheath is operated to be sleeved at the root part of the polyp, and in the process of sleeving the polyp by the electrocautery sheath, the polyp is clamped by the clamp, the electrocautery sheath can move outwards along the inner sheath tube and accurately sleeved on the polyp, so that medical personnel can conveniently clamp the polyp to accurately place the electrocautery sheath, the surgery difficulty is reduced, and the treatment effect is effectively improved.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a multifunctional snare for endoscopic surgery according to the present invention;

FIG. 2 is a partial schematic structural view of an embodiment of a multifunctional snare for endoscopic surgery according to the present invention;

FIG. 3 is a second view of the partial structure of the multifunctional snare according to the embodiment of the present invention;

fig. 4 is a sectional view taken along line a-a in fig. 3.

Reference numerals:

the handle 1, the first slide block 11, the second slide block 12, the liquid injection port 13 and the power supply connector 14;

an outer sheath tube 2 and a wiring tube 21;

an inner sheath 3 and a notch 31;

electrocautery ferrule 4;

the clamp 5, the clip 51;

a first control member 6, a needle 61;

a second control 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-4, the multifunctional snare for endoscopic surgery of the present embodiment comprises: handle 1, outer sheath pipe 2, interior sheath pipe 3, fulguration lasso 4 and clamp 5, be provided with first slider 11 of slidable and second slider 12 on the handle 1, interior sheath pipe 3 is inserted in outer sheath pipe 2, outer sheath pipe 2 and interior sheath pipe 3 all set up on handle 1, the free end portion of sheath pipe 3 including clamp 5 sets up, the outside of sheath pipe 3 including fulguration lasso 4 covers, first slider 11 is connected with the pincers that press from both sides through first control piece 6, second slider 12 is connected with the pincers that press from both sides through second control piece 7, first control piece 6 is arranged in interior sheath pipe 3, second control piece 7 is arranged between outer sheath pipe 2 and interior sheath pipe 3.

Specifically, when a polypectomy is performed on a patient, a medical worker inserts a gastroscope into the stomach of the patient, and after finding the polyp position, the outer sheath 2 is inserted into the stomach of the patient through a passage reserved in the gastroscope, and the clamp 5 is brought close to the polyp.

By operating the first slider 11, the clamp 5 is closed to hold the polyp; then, the second slider 12 is operated to move the electrocautery ferrule 4 outwards along the inner sheath 3; in the process that the electrocautery ferrule 4 moves outwards, as the polyp is clamped by the clamp 5, the electrocautery ferrule 4 can accurately cover the outside of the polyp by moving along the inner sheath 3 and passing over the clamp 5. Finally, the electrocautery loop 4 is electrified to electrically resect polyps, and meanwhile, the resected polyps are still clamped by the clamp 5, and the polyps can be taken out after the outer sheath tube 2 is pulled out of the gastroscope.

Compared with the polyp electroexcision in the prior art, the electrocautery ferrule is too soft, so that the difficulty in sheathing the polyp by the electrocautery ferrule is higher; and the electrocautery lasso 4 in this embodiment is before putting on the rest meat, through the head of clamp 5 centre gripping polyp earlier, like this, can make the polyp different relatively for interior sheath pipe 3, when removing electrocautery lasso 4, utilizes interior sheath pipe 3 to lead, can make the accurate cover of electrocautery lasso 4 in the outside of polyp, improves the operation accuracy on the one hand, and on the other hand can be more effectual shorten the time of set polyp to shorten the time of operation.

Further, the first manipulating part 6 is an infusion tube, one end of the infusion tube is connected with the first slide block 11, the other end of the infusion tube is provided with a needle 61, and the first slide block 11 is provided with a liquid injection port 13 communicated with the infusion tube.

Specifically, in the operating process of gastroscopy, polyps are shielded by folds due to the folds of the inner wall of the stomach, and at the moment, the mucous membrane at the folds of the inner wall of the stomach needs to be injected with physiological saline firstly, so that the polyps can be exposed. In the conventional technique, a catheter with a needle is inserted into the stomach through a passage in the gastroscope for injection, and then the cautery loop 4 is replaced by stretching the needle. In the using process, for an operation needing to be performed with injection treatment in advance, the first manipulating part 6 can be pushed firstly to open the clamp 5 to expose the needle 61 by designing the first manipulating part 6 into the structural form of the infusion tube and configuring the needle 61; then, the needle 61 is examined into the mucous membrane around the polyp, and by injecting the saline into the injection port 13, the saline is injected below the mucous membrane via the needle 61 to cause the polyp to bulge out. This facilitates accurate clamping of the polyp by the clamp 5. And integrate syringe needle 61 on first controlling part 6 for in the operation process, medical personnel insert the outer sheath pipe 2 of multi-functional snare for endoscopic surgery in the passageway of gastroscope, alright with disposable completion injection, press from both sides and get and the operation of electric coagulation excision, and need not to wear to establish the equipment in the gastroscope many times, reduced the operation degree of difficulty and the operation time who shortens.

Wherein the interference of jaws 5 with needle 61 is reduced for ease of handling jaws 5 and during injection. The clamp 5 comprises two clamping pieces 51, the two clamping pieces 51 are oppositely arranged, the clamping pieces 51 are rotatably arranged at the end part of the inner sheath 3, and the inner end parts of the clamping pieces 51 are connected to the infusion tube.

Specifically, clamp 5 adopts split type structure, and when needs injected through syringe needle 61, first slider 11 drives first control 6 and stretches out towards the outside of interior sheath 3, and then makes two clamping pieces 51 separate and expose syringe needle 61 outside, and then satisfies the requirement of injecting. When a polyp needs to be clamped, the first slider 11 drives the first control element 6 to retract into the inner sheath tube 3, so that the two clamping pieces 51 approach each other to clamp the polyp.

In addition, the end of the inner sheath tube 3 is provided with two notches 31, and the clip 51 is rotatably provided in the corresponding notch 31.

Specifically, after the needle 61 is extended, in order to prevent the clip 51 from warping outward and scratching the mucous membrane of the stomach wall, after the needle 61 is completely extended, the clip 51 is turned over and positioned in the notch 31, and the clip 51 is placed by using the notch 31, so that when the injection is performed through the needle 61, particularly in a narrow area in the stomach, the clip 51 can be prevented from warping outward and scratching the mucous membrane.

For the clamping piece 51 to meet the requirements of turning and connection, the clamping piece 51 is an elastic clamping plate, two sides of the middle part of the elastic clamping plate are respectively provided with a protruding rotating shaft, an insertion hole is arranged in the notch 31, and the rotating shaft is inserted into the insertion hole to form a revolute pair. One end part of the elastic clamping plate is fixed on the outer tube wall of the infusion tube, and the elastic clamping plate can be bent and deformed and overturned into the notch 31 when the needle head 61 is extended out by utilizing the elastic deformation of the elastic clamping plate.

Further, as for the second operating member 7, an operating wire may be used, and correspondingly, a power supply connector 14 is further provided on the handle 1, and the power supply connector 14 is connected with the electrocautery ring 4 through the operating wire.

Specifically, the control steel wire can drive the electrocautery ferrule 4 to move on the inner sheath tube 3, when the electrocoagulation excision is performed, an external power supply is connected to the power supply connector 14, and current is transmitted to the electrocautery ferrule 4 through the control steel wire, so that the electrocoagulation excision is completed. Regarding the power supply mode of the electrocautery ferrule 4, reference may be made to the power supply mode in the conventional technology, which is not limited and described herein. Wherein, the inner wall of the outer sheath tube 2 is provided with a wiring tube 21, and the control steel wire is positioned in the wiring tube 21.

Claims

1. A multifunctional snare for endoscopic surgery is characterized by comprising: handle, outer sheath pipe, interior sheath pipe, fulgerizing lasso and clamp, be provided with first slider of slidable and second slider on the handle, interior sheath pipe is inserted in the outer sheath pipe, outer sheath pipe with interior sheath pipe all sets up on the handle, the clamp sets up the free tip of interior sheath pipe, fulgerizing lasso cover is in the outside of interior sheath pipe, first slider is connected with the pincers of pressing from both sides through first manipulation spare, the second slider is connected with the pincers of pressing from both sides through the second manipulation spare, first manipulation spare is located in the interior sheath pipe, the second manipulation spare is located outer sheath pipe with between the interior sheath pipe.

2. A multifunctional snare for endoscopic surgery according to claim 1, wherein the first manipulation member is a perfusion tube, one end portion of the perfusion tube is connected to the first slider, the other end portion of the perfusion tube is provided with a needle, and the first slider is provided with a liquid injection port communicated with the perfusion tube.

3. A multifunctional snare according to claim 2, wherein the clamp includes two jaws disposed opposite to each other, the jaws being rotatably provided at an end of the inner sheath, an inner end of the jaws being connected to the infusion tube.

4. A multifunctional snare according to claim 3, wherein the end of the inner sheath is provided with two notches, and the jaws are rotatably disposed in the corresponding notches.

5. A multifunctional snare according to claim 3, wherein the clip is a resilient splint.

6. A multifunctional snare according to claim 1, wherein the handle is further provided with a power supply connector, the second manipulation member is a manipulation wire, and the power supply connector is connected to the electrocautery loop through the manipulation wire.

7. A multifunctional snare according to claim 6, wherein a wiring tube is provided on an inner wall of the outer sheath, and the control wire is positioned in the wiring tube.