A tissue puncture closure device with a control mechanism

By introducing connection control and guide control mechanisms into the tissue puncture closure instrument, the problem of the blocking element detaching and rotating during the operation was solved, thus achieving the stability of the blocking element and the reliability of the operation, and improving the success rate of the operation.

CN115177308BActive Publication Date: 2026-05-26NINGBO DIOCHANGE MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202210790592.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-05
Publication Date
2026-05-26
Estimated Expiration
2042-07-05

AI Technical Summary

Technical Problem

In existing technologies, the blocking component is prone to premature detachment or rotation during surgery, leading to surgical failure and interference between the connecting component and the puncture component.

Method used

The tissue puncture closure instrument employing a control device includes a connecting control mechanism and a guiding control mechanism. The axial movement and circumferential rotation of the blocking element are restricted by the cooperation of the first and second connecting structures, and the guiding structure provides an axial sliding track to ensure the stability of the blocking element within the puncture device.

Benefits of technology

It improves the success rate of surgery, prevents the obstruction from detaching and rotating, reduces the complexity of operation, and enhances the safety and reliability of surgery.

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Abstract

This application relates to the field of medical devices, and more particularly to a tissue puncture closure device with a control device, including a delivery system and an implant for closing tissue defects. The control device includes a connection control mechanism and a guide control mechanism. The implant includes a blocking member and a connector connected to the blocking member. The delivery system includes a puncture member and a pusher member for pushing the blocking member. The connection control mechanism includes a first connecting structure disposed on the blocking member and a second connecting structure disposed on the pusher member and detachably connected to the first connecting structure. The blocking member and the pusher member are slidably sleeved within the puncture member. The guide control mechanism includes a first guide structure disposed on the distal portion of the puncture member and a second guide structure disposed on the blocking member and / or the pusher member. The connection control mechanism and the guide control mechanism respectively restrict the axial movement and circumferential rotation of the blocking member relative to the puncture member, ensuring that the blocking member does not prematurely detach from the puncture member or rotate arbitrarily.
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