A detachable minimally invasive surgical retrieval bag

Abstract

The invention discloses a detachable minimally invasive operation retrieval bag, which includes a pull wire, which is threaded through an inner tube, and can tighten the mouth of the sample bag with the movement of the inner tube after the elastic body is separated from the sample bag , and separate from the inner tube after the bag mouth is fully tightened; the positioning structure is used to fix the inner tube at the current position after the bag mouth is fully tightened; The pull wire is fixedly connected to the inner tube, and the locking of the pull wire can be released after the bag mouth is fully tightened. The invention can precisely position the inner tube to ensure that the specimen bag is separated from the inner tube only after it is completely locked; it is provided with a locking structure, which requires only one step of operation, and even completes the transition from the locked state to the separated state of the pull wire without any operation. It is very convenient to switch between them; it can effectively protect the pull wire and make the overall specimen bag more concise and beautiful.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a retrieval bag. Background technique [0002] As a medical auxiliary device, the specimen retrieval bag can remove living specimens from the body by cooperating with the puncture device. After technical improvement, it has been widely used in various abdominal operations. Commonly used retrieval bags include elastic body, specimen bag, outer tube and inner tube. The elastic body is installed on the inner tube, set around the mouth of the specimen bag, and shrunk together with the specimen bag in the outer tube. When using, push the inner tube first Make the specimen bag protrude from the outer tube, and the mouth of the bag is stretched under the action of the elastic body. After putting in the specimen, pull the inner tube to return the elastic body to the outer tube, and the mouth of the bag is blocked by the outer tube to produce a displacement relative to the elastic body ...

AI Technical Summary

Problems solved by technology

[0004] 1. The pull wire is set on the outside of the outer tube, which not only affects the appearance, but also easily entangles with other objects during use, resulting in damage to the retrieval bag;

[0005] 2. Because of the elasticity of the specimen bag itself, the drawstring must remain taut until the mouth of the bag is completely tightened, otherwise the mouth of the bag will open again, and after tightening, it must be separated from the inner tube to achieve the inner tube and the specimen. For the purpose of bag separation, the prior art pick-up bag is provided with a mark on the inner tube or outer tube, and the medical staff can visually judge whether the inner tube has reached the designated position, thereby indirectly judging whether the bag mouth has been tightened. The method is not intuitive, and it is easy to cause incomplete shrinkage of the bag mouth, which affects the use effect;

[0006] 3. The pull wires in the prior art are generally wound or fixed on the inner tube, and either need to be untied manually or destructively separated when separating, which is very inconvenient to use

Images