Puncturing and extending assembly

Abstract

The invention provides a puncturing and extending assembly being suitable for a circular tube-shaped binder used for surgical operation, comprising a puncturing piece and an extending piece which can be detachably connected mutually, wherein the puncturing piece is provided with a cooperating part conjugated with a nail anvil shaft, a puncturing part having a tissue puncturing function and a connecting part conjugated with the extending part; the extending piece is provided with a corresponding connecting part conjugated with the puncturing piece and a clamping part which can be clamped. The invention has the advantages that the puncturing and extending assembly is suitable for the nail anvil shaft of the existing circular tube-shaped binder and can directly puncture tissues after cooperating with the nail anvil shaft and guides the nail anvil shaft to pass through a puncturing cut, thereby simplifying the operation steps; the puncturing and extending assembly can assist to clamp the nail anvil to prevent the nail anvil from falling to the inside of a human body, thereby avoiding the operation accidents.

Description

technical field [0001] The invention relates to a binding instrument used in surgery, in particular to a threading assembly suitable for a circular tube binding instrument used in surgery, and belongs to the technical field of medical instruments. Background technique [0002] The circular tube binding instrument for surgery is a medical device often used in surgical operations on physiological tissues such as the intestinal tract. The difference in the performance of the instrument plays a vital role in the effect of the entire operation. Most of this type of binding instrument adopts the axial inward binding method. When binding, the two sections of tissue are restrained. The anvil is placed in one section of tissue, and other parts of the binding instrument are placed in the opposite section of tissue; the anvil shaft is fixed on the anvil rod. After loading, move the anvil and make it close to the staple cartridge; when the anvil and the staple cartridge reach the preset...

AI Technical Summary

Problems solved by technology

However, when performing some deep operations, such as high esophagus and low rectum, because the operation space of the above two cases of surgery is small, the part of the anvil shaft that can be seen by the naked eye is also very small, so it is difficult for surgical forceps to clamp Holding the anvil shaft, the anvil is more likely to fall out of the surgical forceps into the human body, which takes time to find; and when the anvil is placed in the tissue, it may be necessary to perform some surgical preparations, such as removing excess tissue or blood vessel clamping, when clamping the anvil shaft becomes a very laborious task

[0004] In some operations in which the anvil shaft directly passes through the tissue wall to replace the purse-string suture, since the end of the existing anvil shaft is a plane, it does not have the function of puncturing the tissue, and it is necessary to equip a special The puncture part increases the steps of the operation

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