Driving device for intracavity operation stitching instrument and stitching instrument

Abstract

The invention provides a driving device for an intracavity operation stitching instrument and the stitching instrument. The driving device comprises a driving handle, a driving structure and a shell;the driving structure comprises a driving connecting rod assembly, a clamping driving assembly, a positioning needle driving assembly and a nail pushing driving assembly; the clamping driving assemblydrives a clamping push rod to achieve clamping; the positioning needle driving assembly drives a positioning needle push rod to drive a positioning needle; the nail pushing driving assembly drives anail pushing push rod to drive a nail pushing block; the driving handle pushes the driving connecting rod assembly to move from a first position to a third position to enable the positioning needle driving assembly and the clamping driving assembly to move in the axial direction; when the driving connecting rod assembly is located at the first position, the driving connecting rod assembly limits the nail pushing driving assembly, so that the nail pushing driving assembly is not in contact with the nail pushing push rod under the driving of the driving handle; and when the driving connecting rod assembly is located at the third position, the nail pushing driving assembly pushes the nail pushing push rod under the driving of the driving handle. Needle positioning, clamping and nail pushing of the stitching instrument are completed through a single handle, and operation is easy.

Description

technical field [0001] The invention relates to a medical device, in particular to a driving device and a stapler for an intracavity surgical stapler. Background technique [0002] The transverse cutting anastomosis / stapler is mainly used for the creation of anastomotic stoma and the closure of the stump or incision in the digestive tract reconstruction and organ resection surgery where it is difficult to expose the surgical field. At present, the general use process of the transverse cutting stapler is: after the locking handle is positioned to lock the tissue, the firing handle is pushed, the cutter hidden in the staple cartridge assembly is pushed by the central rod driven by the firing handle, and the other side of the tissue to be cut is The anvil and the knife pad that provide the tissue cutting platform, the driven straight cutter cuts off the knife pad during the whole cutting process represents the completion of the cutting task. Compared with the transverse cuttin...

AI Technical Summary

Problems solved by technology

However, the driving device in the prior art is realized by a gear structure, the structure is complex, and at least two handles are required to complete all operations, and the operation process is not simple enough

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