Arioventricular valve opening area reduction system

By using an anchoring device and an interventional puncture suture system, the atrial septal notch is sutured and connected to the atrial free wall, the problems of easy shedding of the occluder and continuous compression of the atrial septal in the prior art are solved, and stable connection and anatomical structure are restored, improving the safety of the surgery and the recovery effect of the patient.

CN119700373APending Publication Date: 2025-03-28HALOCINCH MEDICAL TECH (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202311270306.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the prior art, when reducing the area of ​​the atrioventricular valve orifice, there are problems such as the occluder being prone to fall off, continuous compression of the atrial septal leads to atrial fibrillation, implanting foreign bodies increases the risk of thrombosis, and changing the atrial septal anatomy.

Method used

An anchoring device and an interventional puncture suture system are used to suture the atrial septal notch through sutures and connect it with the anchor on the atrial free wall using the anchor line to reduce compression on the atrial septal tissue, avoid the risk of foreign body drop, and maximize the patient's anatomical integrity.

Benefits of technology

The stable connection of the atrial septal notch is achieved, the risk of occlusion falling off is reduced, the damage to the atrial septal and the burden on the heart is reduced, and the safety of the surgery and the recovery effect of the patient is improved.

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Abstract

The invention relates to an atrioventricular valve opening area reduction system which comprises an anchoring device and an interventional puncture suturing system. The anchoring device comprises an anchoring piece, an anchoring wire and an anchoring conveying piece, wherein the anchoring piece is used for being anchored on the free wall of the atrium. The puncture suturing system comprises a catheter, two sets of puncture needles, a line body, a push-pull piece and a line catching device connected with the far end of the push-pull piece. The push-pull piece, the thread capturing device and the puncture needle are movably contained in the catheter. The anchoring device is movably contained in the conveying cavity of the push-pull piece. And the thread capturing device comprises two groups of movable arms which can be switched between an initial state and an unfolded state under the action of the push-pull piece. And each group of movable arms is provided with a thread capturing piece. And when the movable arm is in an unfolded state, each group of puncture needles is ejected from the puncture channel and then is clamped with one corresponding thread capturing piece. By adopting the area reduction system to repair the atrioventricular valve opening, the integrity of the anatomical structure of a patient can be restored to the maximum extent.
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