A cutting device and method for fixing a thread of an intestinal anastomosis isolation protection device

By designing a hidden cutting edge structure and hook guidance for the outer and inner blade assemblies, combined with a tangent device for the elastic repositioning element, the risks of tangent operation and secondary surgery for the fixation line of the intestinal anastomosis isolation protection device are solved, achieving safe and precise intestinal tangenting, reducing trauma and recovery time.

CN122423924APending Publication Date: 2026-07-21SHANGHAI TOPSUPER MEDICAL TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI TOPSUPER MEDICAL TECHNOLOGY CO LTD
Filing Date
2026-05-27
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The current technology for cutting the fixation suture of the intestinal anastomosis isolation protection device has problems such as high operation risk, need for secondary surgery, and difficulty in positioning, making it difficult to safely and accurately cut the fixation suture inside the intestine.

Method used

Design a tangential device comprising an outer blade assembly, an inner blade assembly, a hook, and an elastic reset element. Through the concealed cutting edge structure of the outer and inner blade heads and the guidance of the hook, it achieves precise positioning and cutting within the intestine, avoiding damage to the intestinal wall by the blades, and the device is repositioned by a torsion spring.

Benefits of technology

This technique enables safe and precise cutting of the fixation sutures under external operation, avoiding secondary surgical trauma, reducing patient pain and recovery time, and improving operational safety and efficiency.

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Abstract

The application discloses a cutting device and method for fixing a line of an intestinal anastomotic mouth isolation protection device, which comprises an outer blade assembly, an inner blade assembly, a drag hook and an elastic reset member. The outer blade assembly comprises an outer blade head and an outer blade operating part. The inner blade assembly is rotatably arranged in the outer blade assembly and comprises an inner blade head and an inner blade operating part. The drag hook is used for hooking the fixing line and guiding the device to a cutting position. The elastic reset member is connected with the outer blade assembly and the inner blade assembly respectively and is used for providing a restoring force for resetting the two parts after the inner blade assembly rotates relative to the outer blade assembly. The inner blade assembly is provided with an inner blade through hole penetrating through the inner blade head and the inner blade operating part and used for passing through the drag hook. The application can directly complete safe cutting of the line in the intestinal tract under extracorporeal operation, effectively avoids blade scratch of the intestinal wall and simultaneously avoids additional trauma to the patient caused by secondary surgery.
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