cutting stapler

Abstract

The embodiment of the invention discloses an incision stitching instrument, which comprises a nail bin assembly, a nail anvil assembly and a closed handle, wherein the incision stitching end of the nail bin assembly and the incision stitching end of the nail anvil assembly deflect a preset angle smoothly relative to an intermediate junction part and the gripping end; the nail bin assembly comprises a blade assembly arranged in a sliding groove and a nail bin arranged above the sliding groove; the blade assembly is arranged at the front end of the nail bin, and is connected with a trigger button by a trigger sheet; the trigger sheet extends to the gripping end of the nail bin assembly along the incision stitching end and the intermediate junction part of the nail bin assembly; the trigger button is arranged at the gripping end of the nail bin assembly; and during triggering, the trigger button is pulled in the tail end direction of the gripping end of the nail bin assembly to drive theblade assembly to slide towards the nail bin in the sliding groove. By the incision stitching instrument, deep tissue can be incised effectively in an omnibearing mode, and the incision stitching instrument is flexible in triggering, convenient to operate and stable in a structure.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a cutting and stapler used in surgical operations. Background technique [0002] During surgical operations, the removal of deep tissue is undoubtedly one of the difficulties that all surgeons will encounter. The difficulties are mainly reflected in two aspects: on the one hand, the surgical field of view is narrow and the size of slightly larger surgical instruments (including cutting stapler) cannot be lowered to the surgical site; refer to figure 1 On the other hand, the running direction of the tissue and organ is parallel to the direction of the instrument jaw 100. The surgeon needs to find a way to make the blade of the instrument form an angle with the running direction of the tissue and organ, so as to be able to cut the tissue and organ. Of course, such an operation is very not easy. [0003] For example, this is the case in low anterior rectal resection surgery. As ...

AI Technical Summary

Problems solved by technology

[0006] Since the distal end of the cutting stapler is deflected to the left, based on this design idea, the firing piece that pushes the blade assembly (including the cutting blade and the nail pushing piece) should also deflect to the left together at the turning point, resulting in pushing the firing piece. When the button fires the blade assembly, as the blade assembly is against the tissue, the front resistance immediately increases, and the firing piece will deflect to the right and cling to the right side wall of the sliding groove. On the one hand, the firing thrust is consumed, and on the other hand, the firing piece increases. The friction between the right side wall of the sliding groove makes the firing very difficult or even impossible to push

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