具备自定位防偏移结构的弧形腔镜切割吻合器头部组件

By adding a self-positioning anti-deviation structure to the head assembly of the arc-shaped laparoscopic cutting anastomosis device, the problems of inaccurate cutting position and asymmetrical anastomosis are solved, achieving precise control of cutting and anastomosis and ensuring the stability of the cutting path.

CN121129360BActive Publication Date: 2026-07-17SUZHOU KINVAST PRECISION MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU KINVAST PRECISION MACHINERY
Filing Date
2025-09-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The use of arc-shaped laparoscopic cutting staplers can easily lead to inaccurate cutting positions and asymmetrical anastomosis, especially in minimally invasive surgery. Due to uneven tissue hardness, curvature, or mismatch between the device model and the thickness of the lesion tissue, the risk of displacement is increased.

Method used

A self-positioning anti-deviation structure is added, including a moving chamber seat, a fixed chamber seat, a directional arc sleeve, a directional circular block, a differential diameter spring, and an electromagnetic component. Through the guide groove, the guide groove width design, electromagnetic transmission, and wedge surface transmission, the movement path of the cutting blade and the staple cartridge is stabilized, ensuring the accuracy of cutting and fitting.

Benefits of technology

It achieves precise control of the cutting blade and staple cartridge, avoiding the impact of cutting path deviation on the mating action and improving the accuracy of cutting and mating.

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Abstract

本发明公开有具备自定位防偏移结构的弧形腔镜切割吻合器头部组件,涉及吻合器技术领域,针对弧形切割吻合器中的弧形切割路径进行改进,因为有别于常规的直线型切割方式,导致切刀实际切割路径可能存在偏差而影响到吻合动作,对此本发明是以定向圆块为基础,首先在其外壁位置增设与定向弧套内壁配合的差径簧片,定向弧套的设置轮廓线与切刀理论切割路径完全一致,重点在于:在定向圆块内部设置被动拨盘,并以切刀移动过程形成被动拨盘的被动式角度偏转过程,其次以主动干涉方式结合磁性传动方式形成主动式角度偏转过程,目的是用于改变两个与定向弧套内壁保持接触的差径簧片中的形变方向,以此去稳定切刀 / 定向圆块的移动路径。
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