Medical suturing device and actuating mechanism thereof

By designing locking components, membrane components, and flexible components, the bleeding problem when suturing thin blood vessels and the complexity of operation in existing technologies are solved, enabling convenient membrane component separation and cutter protection.

CN117159067BActive Publication Date: 2026-06-30SUZHOU FRANKMAN MEDICAL DEVICE TECH RES INST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU FRANKMAN MEDICAL DEVICE TECH RES INST CO LTD
Filing Date
2023-08-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing small-sized staplers cause bleeding problems when suturing thin blood vessels because the vessel thickness does not match the staples. Furthermore, existing diaphragm fixation methods are complicated to operate and may damage the cutting blade.

Method used

The design incorporates a locking component, a membrane component, and a flexible component. By moving the push pin, the locking slider slides, releasing the connection of the proximal connector and enabling convenient separation of the membrane component from the actuator.

Benefits of technology

It improves suturing results, is suitable for blood vessels of different thicknesses, is easy to operate, and avoids damage from cutting tools and complicated suture operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a medical suture device and its actuator. The actuator includes first and second clamping members, a pusher, a locking assembly, a membrane assembly, and a flexible member connecting the locking assembly and the pusher. The locking assembly includes a locking slider. The membrane assembly includes a diaphragm located between the first and second clamping members, a distal connector, and a proximal connector. The distal connector is connected at both ends to the distal end of the diaphragm and surrounds the first clamping member between itself and the diaphragm. The proximal connector includes a first proximal branch and a second proximal branch. One end of the first and second proximal branches is connected to the proximal end of the diaphragm, and the other end is connected via the locking slider and surrounds the first clamping member between itself and the diaphragm. When the pusher slides distally, it pulls the flexible member, causing the locking slider to slide proximally, thus disconnecting the first and second proximal branches. The membrane assembly of this actuator is easily detached.
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