| 主权项 |
1. An expandable medical device deployable at least partially within a hole defined in a tissue structure between a first atrium and a second atrium of a heart, the hole defining an axis oriented axially through the hole, the expandable medical device comprising:
a frame configured to maintain a substantially flat configuration as said frame transitions and self-expands from a non-deployed state to an intended, as deployed state, said frame configured to be oriented parallel to, or extending along, the axis of the hole when in the intended, as-deployed state within the tissue structure, said frame comprising a central portion, at least one proximal anchor and at least one distal anchor, said central portion comprising a plurality of frame segments defining a multi-cellular structure, said at least one proximal anchor and said at least one distal anchor each configured to extend substantially coplanar with said central portion in the intended, as-deployed state with said at least one proximal anchor configured to extend in the first atrium and said at least one distal anchor configured to extend in the second atrium; wherein said plurality of frame segments define four cells of the multi-cellular structure, each frame segment extending directly to and defining a length between nodes such that each cell is defined by four frame segments and only four nodes, each node connecting adjacently extending frame segments, and wherein said plurality of frame segments each include arcuate portions extending along the length of each frame segment such that a collective length of the arcuate portions extends along a majority of the length of each frame segment, and each cell of said multi-cellular structure is defined by said plurality of frame segments such that each cell includes a common frame segment of an adjacent cell. |
