Laparoscopic surgery with suturing device

Abstract

The invention relates to a suturing and cutting device for endoscopic surgery. The suturing and cutting device comprises a body, a nail head part, a push part and a swing mechanism. The near end of the nail head part is connected with the far end of the body through the swing mechanism, and therefore the nail head part can swing in the longitudinal direction relative to the axial direction of the body. The near end of the push part is located in the body and stretches into the nail head part in the axial direction of the body, a first slot allowing the push part to be inserted therein is formed in the near end of the nail head part, the hole diameter of the first slot is gradually reduced from the near end to the far end, and therefore the push part can swing in the first slot in the longitudinal direction relative to the nail head part. According to the suturing and cutting device for the endoscopic surgery, when the instrument swings, the push part cannot suffer from approximately bending or mutant deformation at the switch-over position of the instrument, progressive transition exists, therefore, smooth bending is formed, resistance generated during percussion is reduced, percussion force needed during percussion is reduced, and an operator can obtain better experience.

Description

technical field [0001] The invention belongs to the field of medical instruments, and relates to an instrument for surgery, in particular to a slit-cutting device for laparoscopic surgery. Background technique [0002] Surgical suturing devices have been widely used for suturing wounds, suturing and cutting internal tissues, and a suturing device suitable for endoscopic surgery has also been developed. Laparoscopic surgery, also known as laparoscopic surgery, replaces direct vision with the naked eye with electronic mirrors, and replaces fingers with slender instruments. Observation, diagnosis, cutting, suturing and other treatments of lesions. [0003] The stapling device for laparoscopic surgery 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 operation site to perform surgery. Specifically, the instrument platform includes a firing han...

AI Technical Summary

Problems solved by technology

Then, when the instrument swings the head (the axial swing of the nail head relative to the body), the pusher is bent and deformed, especially between the nail head and the first adapter, and between the first adapter and the body. The section between them is almost bent. Such deformation increases the friction force between the pusher and the first adapter during the firing process, resulting in uneven advancement of the pusher and requiring greater firing force.

Images