guide

Abstract

The invention provides a hollow truncated cone-shaped guide element which comprises a near end, a far end and an outer wall connected with the near end and the far end. The external diameter is gradually enlarged from the far end to the near end, one group of splicing blocks are fixedly spliced to form the guide element, all the splicing blocks are connected in a penetrating manner by the same traction part, the guide element is disintegrated when pulled by external force according to the order from far to near, and a splicing block string connected by the traction part is finally formed and can be separated from a circular tubular bookbinding instrument. The guide element has the advantages that the guide element can be extracted from the circular tubular bookbinding instrument once, is convenient to operate and fixedly arranged at the far end of a staple cartridge component, the largest external diameter of the guide element is equal to the external diameter of a staple cylinder, the overall external diameter of the staple cylinder cannot be increased, and the difficulty of the circular tubular bookbinding instrument entering human tissues is reduced.

Description

technical field [0001] The invention relates to an operation auxiliary instrument of a circular tube binding instrument, in particular to a guide piece of a circular tube binding instrument. Background technique [0002] The circular tubular stapler is a surgical instrument widely used in circular tubular tissue suturing operations. It is composed of a circular nail head assembly and a firing assembly; two sections of circular tubular tissue that need to be connected are placed in the nail head assembly Between the staple anvil and the staple cartridge, adjust the distance between the staple anvil and the staple cartridge to gradually clamp the tissue, and then operate the firing assembly to shape the nail and complete the connection of the two sections of tissue. [0003] In the actual operation, there are two types of operations where it is difficult for the circular tube-type stapler to enter the pipeline, namely, low rectal surgery and gastric bypass surgery. The first ...

AI Technical Summary

Problems solved by technology

These auxiliary devices can help the doctor to put the head of the binding instrument into the predetermined position smoothly, but the auxiliary devices disclosed in the above-mentioned patents are all sleeved outside the nail barrel, which will increase the overall outer diameter of the nail barrel and increase the diameter of the round tube. Difficulty of entering the anus or small intestine with the type binding instrument, and it will also increase the pain of the patient

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