CN110811817A - Disposable endoscope lower anti-perforation ring sleeve core and snare - Google Patents

Abstract

The invention relates to a disposable anti-perforation ring sleeve core under an endoscope and a snare. The circle cover core is from preceding to be the lasso portion and connecting portion backward in proper order, the front end of lasso portion is equipped with most advanced, its characterized in that: and the tip is provided with an insulating soft cushion piece. The snare comprises an operating handle, a snare core and an outer sheath tube, wherein the rear end of the outer sheath tube is connected with the operating handle, the snare core is arranged in the outer sheath tube in a penetrating manner, and the rear end of the snare core is also connected with the operating handle; the method is characterized in that: the ring sleeve core adopts the anti-perforation ring sleeve core. The anti-perforation snare core is additionally provided with the insulating soft pad, so that on one hand, the sharp end can be prevented from directly damaging intestinal mucosa, on the other hand, the perforation caused by electric conduction is prevented, and the use is safer and more reliable. The operating handle is in a gun-shaped structure, so that the gun-shaped structure is better in holding stability, the clinical operation is more convenient, and the accurate operation is easy to realize.

Description

Single-use endoscopic anti-perforation snare core and snare

technical field

The invention relates to a snare for polypectomy electric cutting of patients with intestinal polyps, in particular to a disposable endoscopic anti-perforation snare core and a snare, which belong to the technical field of medical devices.

Background technique

The snare is one of the commonly used accessories for digestive endoscopy in endoscopic therapy. It is mainly used for the resection of gastrointestinal polyps, raised lesions, flat lesions, and even the resection of early gastrointestinal cancers (such as EMR and MBM). The snare has a long history in polypectomy and is the most widely used and classic. Among them, the electric snare is mainly composed of an operating handle, a snare core and an outer sheath tube. The current snare products mainly have the following problems in use: 1. The tip of the snare core is easy to directly damage the intestinal mucosa when the polyp is removed. It is easy to cause intestinal perforation when conducting electricity; 2. The operation handle is inconvenient in clinical operation, and it is difficult to achieve precise operation.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a single-use endoscopic anti-perforation snare core and a snare with ingenious structure, reasonable design, convenient use, safety and reliability.

The first object of the present invention is achieved through the following technical solutions:

Disposable endoscope anti-perforation loop core, the loop core is a ferrule part and a connecting part in sequence from front to back, the front end of the ferrule part is provided with a tip, and it is characterized in that: the tip is provided with an insulating soft pads.

As a further improvement of the anti-perforation snare core, the insulating soft pad is an insulating soft sleeve.

As a further improvement of the anti-perforation snare core, the cross section of the insulating soft sleeve is circular, the inner diameter of the insulating soft sleeve is smaller than the outer diameter of the snare core, and a peripheral wall of the insulating soft sleeve is provided with extending from one end. To the spiral incision at the other end, one side of the spiral incision is provided with a clamping rib, and the other side is provided with a clamping groove matching the clamping rib.

As a further improvement of the anti-perforation snare core, the insulating soft pad is made of rubber or silicone.

As a further improvement of the anti-perforation snare core, the snare core is spirally woven from titanium-nickel alloy medical metal sutures.

The second object of the present invention is achieved through the following technical solutions:

The single-use endoscopic anti-perforation snare includes an operating handle, a snare core and an outer sheath tube, the rear end of the outer sheath tube is connected to the operating handle, the snare core is penetrated in the outer sheath tube, and the The rear end is also connected with the operating handle; it is characterized in that: the snare core adopts the above-mentioned anti-perforation snare core.

As a further improvement of the snare, the operating handle includes a gun-shaped bracket, a support plate, a threader, a sliding seat, a trigger, a bolt, a guide tube, and a guide tube support plate, and the front end of the gun barrel of the gun-shaped bracket is installed There is a support plate, a threader is installed in the center of the support plate, the rear end of the snare core penetrates into the barrel from the center hole of the threader, and the rear end of the outer sheath is sleeved on the threader; the sliding The seat is installed on the upper end of the gun handle of the gun-shaped bracket, the side plates extending upward are arranged on both sides of the sliding seat, the bolt is installed on the sliding seat and is slidably connected with the two side plates, and the lower part of the rear end of the gun barrel is provided with The trigger installation hole, the trigger is installed in the trigger installation hole, the upper end of the trigger is hinged with the front end of the bolt; the guide pipe is arranged in the barrel, the front end of the guide pipe is fixedly connected with the rear end of the support plate, and the rear end of the guide pipe is provided with There is a hook-shaped elbow, the hook-shaped elbow is installed on the support plate of the guide tube, the rear end of the snare core penetrates from the front end of the guide tube, and is bent 180 degrees through the hook-shaped elbow and then passes through the rear end of the guide tube. out and attach the rear end of the bolt.

As a further improvement of the snare, the lower end of the trigger is provided with a finger buckle hole.

As a further improvement of the snare, the guide tube is provided with a transparent section, and the rear end of the snare core is provided with an identification color section.

Compared with the prior art, the present invention has the following advantages:

1) In the present invention, since the anti-perforation trap core is added with an insulating soft pad, on the one hand, the tip can be prevented from directly damaging the intestinal mucosa, and on the other hand, the perforation caused by conduction can be prevented, and the use is safer and more reliable.

2) In the present invention, the insulating soft sleeve adopts an insulating soft sleeve provided with a spiral cutout, and the insulating soft sleeve can be installed on the ferrule part through the spiral cutout, and then pass the clamping rib and clamp after being installed. The mutual engagement of the grooves closes the spiral cutout, which is convenient for installation and safe and reliable.

3) In the present invention, the operating handle is set as a gun-shaped structure, and the gripping stability of the gun-shaped structure is better, which makes clinical operation more convenient and easy to achieve precise operation.

Description of drawings

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

FIG. 2 is an enlarged schematic view of the structure of the insulating soft sleeve in FIG. 1 .

FIG. 3 is a partial cross-sectional view for illustrating the structure of both sides of the spiral cut.

FIG. 4 is a schematic structural diagram of Embodiment 2 of the present invention.

Description of reference numerals: 1-snap core, 1a-ferrule part, 1b-connection part, 2-insulation soft sleeve, 2a-spiral cutout, 2b-clamping rib, 2c-clamping groove, 3-operating handle, 3.1- Gun-shaped bracket, 3.2-support plate, 3.3-threader, 3.4-slide seat, 3.5-trigger, 3.6-bolt, 3.7-guide tube, 3.8-guide tube support plate, 4-outer sheath.

Detailed ways

The present invention will be further described below with reference to the specific drawings and embodiments.

Example 1

As shown in FIGS. 1 to 3 , Embodiment 1 discloses a single-use endoscopic anti-perforation snare core 1 . The front end of the ring portion 1a is provided with a tip, and an insulating cushion member is provided on the tip. Due to the addition of insulating soft pads, on the one hand, the tip can be prevented from directly damaging the intestinal mucosa, and on the other hand, the perforation caused by conduction can be prevented, and the use is more safe and reliable.

As shown in FIG. 2 , in this embodiment 1, the insulating soft gasket is an insulating soft sleeve 2 , the cross section of the insulating soft sleeve 2 is circular, and the inner diameter of the insulating soft sleeve 2 is smaller than that of the snare core 1 The outer diameter of the insulating soft sleeve 2 is provided with a spiral cutout 2a extending from one end to the other end on the peripheral wall of the insulating soft sleeve 2. One side of the spiral cutout 2a is provided with a clamping rib 2b, and the other side is provided with a matching rib 2b. card slot 2c. In this way, the insulating soft sleeve 2 can be installed on the ferrule portion 1a through the spiral cutout 2a, and after the installation, the spiral cutout 2a is closed by the mutual engagement of the clamping rib 2b and the clamping groove 2c, which is convenient for installation and Safe and reliable.

In Embodiment 1, the insulating soft pad is preferably made of rubber or silicone material, which is safer and more reliable to use. The snare core 1 is preferably made of titanium-nickel alloy medical metal sutures that are helically woven, so that the snare portion 1a can be freely deformed, and will not be scorched during electrical cutting, and also has the effect of preventing polyp slippage. .

Example 2

As shown in FIG. 2 , Embodiment 2 discloses a single-use endoscopic anti-perforation snare, comprising an operating handle 3 , a snare core 1 and an outer sheath 4 , the rear end of the outer sheath 4 is connected to the The operating handle 3 is connected, the snare core 1 is inserted in the outer sheath tube 4, and the rear end of the snare core 1 is also connected with the operating handle 3; the snare core 1 adopts the above-mentioned anti-perforation snare core 1.

In the second embodiment, the operating handle 3 includes a gun-shaped bracket 3.1, a support plate 3.2, a threader 3.3, a sliding seat 3.4, a trigger 3.5, a gun bolt 3.6, a guide tube 3.7, and a guide tube support plate 3.8. A support plate 3.2 is installed at the front end of the barrel 3.1a of the bracket 3.1, a threader 3.3 is installed in the center of the support plate 3.2, and the rear end of the snare core 1 penetrates into the barrel 3.1a from the center hole of the threader 3.3, so The rear end of the outer sheath tube 4 is sleeved on the threader 3.3; the sliding seat 3.4 is installed on the upper end of the gun handle 3.1b of the gun-shaped bracket 3.1, and both sides of the sliding seat 3.4 are provided with upwardly extending side plates. 3.6 is installed on the sliding seat 3.4 and is slidably connected with the two side plates. The lower part of the rear end of the barrel 3.1a is provided with a trigger installation hole, the trigger 3.5 is installed in the trigger installation hole, and the upper end of the trigger 3.5 is connected to the bolt. 3.6 The front end is hinged; the guide tube 3.7 is arranged in the barrel 3.1a, the front end of the guide tube 3.7 is fixedly connected with the rear end of the support plate 3.2, and the rear end of the guide tube 3.7 is provided with a hook-shaped elbow 3.7a, the hook-shaped elbow 3.7a is installed on the guide tube support plate 3.8, the rear end of the snare core 1 penetrates from the front end of the guide tube 3.7, bends 180 degrees through the hook-shaped elbow 3.7a, and then passes out from the rear end of the guide tube 3.7 and connects to the Describe the rear end of the bolt 3.6.

In specific use, the operating handle 3, the snare core 1 and the outer sheath tube 4 are connected in a conventional manner; then the outer sheath tube 4 enters the patient's lumen through the endoscope operation hole, and after approaching the lesion [polyp], operate the wrench to drive the The bolt 3.6 moves, and the bolt 3.6 drives the snare core 1 to move, so that the ferrule part 1a at the front end of the snare core 1 extends out of the outer sheath tube 4, and the ferrule part 1a opens automatically; After the polyp is trapped, the power supply can be turned on to perform an electric resection operation. After the excision is completed, the outer sheath tube 4 and the trap core 1 can be taken out.

In the second embodiment, the lower end of the trigger 3.5 is provided with a finger buckle hole 3.5a. This setting is convenient for medical personnel to operate.

In this embodiment 2, the guide tube 3.7 is provided with a transparent section, and the rear end of the snare core 1 is provided with a marking color section. With this arrangement, the position of the snare core 1 in the outer sheath tube 4 can be observed through the cooperation of the transparent segment and the identification color segment.

The above descriptions are only preferred embodiments of the present invention, and the above specific embodiments do not limit the present invention. Within the scope of the technical idea of the present invention, various deformations and modifications may occur, and all modifications, modifications or equivalent replacements made by those of ordinary skill in the art according to the above descriptions belong to the scope of protection of the present invention.

Claims (9)

1. Disposable endoscope anti-perforation snare core, the snare core (1) is sequentially composed of a ferrule portion (1a) and a connecting portion (1b) from front to back, and the front end of the ferrule portion (1a) is provided with The tip is characterized in that: the tip is provided with an insulating soft pad. 2. The single-use endoscopic anti-perforation snare core according to claim 1, wherein the insulating soft pad is an insulating soft sleeve (2). 3. The single-use endoscopic anti-perforation trap core according to claim 2, wherein the cross section of the insulating soft sleeve (2) is circular, and the inner diameter of the insulating soft sleeve (2) is less than The outer diameter of the snare core (1) is provided with a spiral cutout (2a) extending from one end to the other end on the peripheral wall of the insulating soft sleeve (2), and one side of the spiral cutout (2a) is provided with a rib (2b), the other side is provided with a clamping groove (2c) matching the clamping rib (2b). 4 . The anti-perforation trap core under a disposable endoscope according to claim 1 , wherein the insulating soft pad is made of rubber or silicone. 5 . 5. The anti-perforation snare core under a disposable endoscope according to claim 1, wherein the snare core (1) is spirally woven from titanium-nickel alloy medical metal sutures. 6. A disposable endoscopic anti-perforation snare, comprising an operating handle (3), a snare core (1) and an outer sheath tube (4), the rear end of the outer sheath tube (4) and the operating handle ( 3) connection, the snare core (1) is worn in the outer sheath tube (4), and the rear end of the snare core (1) is also connected with the operating handle (3); it is characterized in that: the snare core (1) ) using the single-use endoscopic anti-perforation snare core according to any one of claims 1 to 5. 7. The single-use endoscopic anti-perforation snare according to claim 6, wherein the operating handle (3) comprises a gun-shaped bracket (3.1), a support plate (3.2), a threader (3.3) , sliding seat (3.4), trigger (3.5), bolt (3.6), guide tube (3.7), guide tube support plate (3.8), the front end of the gun barrel (3.1a) of the gun-shaped bracket (3.1) is installed with A support plate (3.2), a threader (3.3) is installed in the center of the support plate (3.2), and the rear end of the snare core (1) penetrates into the barrel (3.1a) from the center hole of the threader (3.3) , the rear end of the outer sheath tube (4) is sleeved on the threader (3.3); the sliding seat (3.4) is installed on the upper end of the handle (3.1b) of the gun-shaped bracket (3.1), and the sliding seat (3.4) Both sides are provided with upwardly extending side plates, the bolt (3.6) is mounted on the sliding seat (3.4) and is slidably connected with the two side plates, and the lower rear end of the barrel (3.1a) is provided with a trigger mounting hole , the trigger (3.5) is installed in the trigger mounting hole, the upper end of the trigger (3.5) is hinged with the front end of the bolt (3.6); the guide tube (3.7) is arranged in the barrel (3.1a), and the guide tube ( 3.7) The front end is fixedly connected with the rear end of the support plate (3.2), and the rear end of the guide tube (3.7) is provided with a hook-shaped elbow (3.7a), and the hook-shaped elbow (3.7a) is installed on the guide tube support plate (3.8) ), the rear end of the snare core (1) penetrates from the front end of the guide tube (3.7), is bent 180 degrees by the hook elbow (3.7a), and then passes out from the rear end of the guide tube (3.7) and is connected to the See the rear end of the bolt (3.6). 8. The single-use endoscopic anti-perforation snare according to claim 7, wherein the lower end of the trigger (3.5) is provided with a finger button hole (3.5a). 9. The single-use endoscopic anti-perforation snare according to claim 7, characterized in that: the guide tube (3.7) is provided with a transparent section, and the rear end of the snare core (1) is provided with a logo color part.

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