Minimally invasive surgery fetching bag capable of being disassembled

Abstract

The invention discloses a minimally invasive surgery fetching bag capable of being disassembled. The minimally invasive surgery fetching bag capable of being disassembled comprises a pull wire arranged in an inner pipe in a penetrating mode, a positioning structure and a locking structure, wherein the pull wire can tighten a bag opening of a sample bag along with the movement of the inner pipe after an elastic body and the sample bag are separated and be separated from the inner pipe after the bag opening is completely tightened, the positioning structure is used for fixing the inner pipe to a current position after the bag opening is completely tightened, and the locking structure can be used for fixedly connecting the pull wire to the inner pipe before the bag opening is completely tightened and releasing the locking to the pull wire after the bag opening is completely tightened. By means of the minimally invasive surgery fetching bag capable of being disassembled, the inner pipe can be accurately positioned, and it can be ensured that the sample bag is separated from the inner pipe after being completely locked; the locking structure is arranged, the switching to the separating state from the locking state can be achieved only through one-step operation or even without operation, and use is very convenient; the pull wire can be effectively protected, and the sample bag can be more simple and attractive overall.

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

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