Endoscope fetching device capable of controlling size, opening and closing of bag mouth

Abstract

The invention relates to an endoscope fetching device capable of controlling size, opening and closing of a bag mouth. The endoscope fetching device capable of controlling size, opening and closing of the bag mouth comprises a loop bar, an operating rod, an elastic ring, a sample bag and a bag mouth control mechanism, wherein the sample bag is compressed in the cavity of the loop bar; the head end of the loop bar after entering operation space propels the operating rod to release the sample bag from the loop bar; the bag mouth of the sample bag is opened under the action of recovery tensile force of the elastic ring and the bag mouth control mechanism; and the size of the bag mouth of the sample bag can be adjusted under the action of the bag mouth control mechanism. An excision sample is placed in the sample bag, and the operating rod is moved backwards, so that the elastic ring is compressed and withdrawn to enter the cavity of the loop bar; the bag mouth of the sample bag is closed under the action of the bag mouth control mechanism and enters the cavity of the loop bar; and when necessary, the bag mouth of the sample bag can be opened again and the excision sample can be placed in the bag again under the action of the bag mouth control mechanism. After the bag mouth of the sample bag is pulled out of an operation hole, the bag mouth of the sample bag can be opened; through an easy broken line on the operating rod, an operating handle can be taken out and separated from the loop bar; and the operating rod in a suitable length is remained for pulling the sample bag, so that the operation sample can be taken out conveniently. The endoscope fetching device capable of controlling size, opening and closing of the bag mouth is simple and compact in structure, relatively low in cost, can adjust size of the bag mouth of the sample bag as well as open and close the bag mouth of the sample repeatedly, and is convenient to use, safe and reliable.

Description

technical field [0001] The invention relates to the field of surgical medical instruments, in particular to a laparoscopic object fetcher, in particular to a laparoscopic object fetcher with controllable pocket size and opening and closing. Background technique [0002] The specimen fetcher is used to remove living specimens from the operating space in laparoscopic surgery, and is widely used in various abdominal operations. Commonly used objects include elastic rings, specimen bags, sleeve rods, and pull wires or operating rods. The outside of the elastic ring wraps around the opening of the specimen bag. When in use, the elastic ring is returned to the sleeve rod through a pull wire or an operating rod, and the pocket opening is blocked by the sleeve rod to close. But after the opening of the specimen bag is closed, due to the friction between the opening of the specimen bag and the elastic ring, when the operating rod is pushed forward again, the closed opening of the sp...

AI Technical Summary

Problems solved by technology

The opening of the opening of the specimen bag depends on the free linear connector connected to the inner wall of the rod cavity. It is difficult to detach the rod, and it is necessary to destroy the complete or intermittent connector of the rod, which brings inconvenience to the user.

When in use, the connecting piece is easily wound on the elastic ring or the specimen bag due to rotation, causing the release failure of the specimen bag or the failure to open the mouth of the specimen bag

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