occlusion device
By designing multiple radially extending wings and anchoring elements in the fixation part of the left atrial appendage occluder, the problem of insufficient contact area between the fixation part and the implantation site was solved, the anchoring ability was enhanced, the risk of dislodgement was reduced, and damage to the atrial appendage was minimized.
CN122297012APending Publication Date: 2026-06-30LIFETECH SCI (SHENZHEN) CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LIFETECH SCI (SHENZHEN) CO LTD
- Filing Date
- 2025-02-13
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
The contact area between the fixation part and the implantation site of existing left atrial appendage occluders is insufficient, resulting in poor anchoring and a risk of dislodgement.
Method used
Design an occlusion device, the fixing part including a mesh braided structure with multiple radially extending wings, each wing having at least one set of anchors on its outer side, the free end of the anchors extending outward to adaptively engage with the grooves and protrusions in the implantation area to enhance anchoring capability.
Benefits of technology
This increases the contact area and anchoring ability between the occlusion device and the inner wall of the atrial appendage, reduces the risk of detachment, and avoids damage to the atrial appendage from sharp structures.
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Smart Images
Figure CN122297012A_ABST
Abstract
This invention relates to an occlusion device, comprising a fixing part and a sealing part. The fixing part includes a mesh-woven structure and a plurality of radially extending wings. At least one set of anchoring elements is disposed on the outer side of each wing, and the free end of the anchoring element extends outward from the surface of the fixing part. Compared with the conventional fixing part design with a cylindrical outer edge (i.e., a circular cross-section), the fixing part of the occlusion device provided by this invention has multiple wings that can adaptively engage with the grooves and protrusions of the implantation area, facilitating the anchoring elements to abut or penetrate the surface of the implantation area in the corresponding area, thereby achieving better anchoring capability.
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