Swinging mechanism and linear type fitter

Abstract

The invention provides a swinging mechanism and a linear type fitter. The swinging mechanism comprises a nail box shell and a swinging draw bar, wherein a cavity for accommodating the swinging draw bar is formed in a side face of the nail box shell, and the swinging draw bar has an initial position and can move along an axial direction of the nail box shell to be deviated from the initial position; and locating holes are formed in the surface of the swinging draw bar, elastic locating members are arranged on an inner side face of the cavity, and top ends of the elastic locating members enter corresponding locating holes. According to the swinging mechanism and the linear type fitter, through the locating holes of the swinging draw bar and the locating members of the cavity of the nail boxshell, the locating of the initial position of the swinging draw bar is achieved, and the efficiency and accuracy of mounting of the swinging draw bar and the nail box shell are improved; and the locating members are the elastic locating members, the elastic locating members will generate certain deformation when the swinging draw bar moves so as to yield to the moving of the swinging draw bar, and the swinging draw bar cannot be pressed to deform due to contact between the elastic locating members and the swinging draw bar.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a head swing mechanism and a linear stapler. Background technique [0002] Gastrointestinal diseases are one of the most common diseases in human beings. In the course of treatment, staplers are often used instead of doctors' manual operations to anastomose physiological tissues such as the digestive tract. Linear stapler is a common shell surgical instrument, most of which use linear binding method to anastomose physiological tissues such as esophagus, stomach, and intestinal tract during surgery. [0003] A linear stapler generally includes an instrument platform and a head detachably mounted on the platform. The head can pass through a small incision on the body through a puncture device to approach the surgical site for surgery. Specifically, the instrument platform includes a firing handle, and the detachable head includes a nail box shell and a nail head instal...

AI Technical Summary

Problems solved by technology

[0005] In the existing linear stapler, there is no initial positioning mechanism between the swing head pull rod and the nail case shell, and the initial position between the swing head pull rod and the nail case shell cannot be determined, which brings inconvenience to the installation of the instrument, and The accuracy of the installation of the swing head rod and the nail magazine shell cannot be guaranteed

Images