Left atrial appendage closure device
AssigneeBoston Scientific Scimed, Inc.
InventorsJerry Sy-Shyan Wang, Joshua David Tillman, Philip Andrew Litecky, Timothy Hillukka, Graham Krumpelmann
Life of this patent
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Abstract
A left atrial appendage closure (LAAC) device is adapted to pull a left atrial appendage (LAA) closed on itself. The LAAC device includes a tissue engagement structure that is adapted to engage tissue within the LAA and pull the tissue inwardly when the tissue engagement structure is driven from an initial actuation level towards a final actuation level. The LAAC device includes a drive assembly that is adapted to drive the tissue engagement structure from the initial actuation level towards the final actuation level.
Claims20
A left atrial appendage closure (LAAC) device adapted to pull a left atrial appendage (LAA) closed on itself, the LAAC device comprising:
- a plurality of engagement arms extending radially outwardly from a central ring, each of the plurality of engagement arms including a free end adapted to engage tissue within an ostium of the LAA;
- the free end of each of the plurality of engagement arms adapted to move proximally relative to the LAA and pull tissue of the LAA radially inward as each of the plurality of engagement arms move from an initial actuation level towards a final actuation level;
- and
- a drive assembly adapted to drive the plurality of engagement arms from the initial actuation level towards the final actuation level.
A left atrial appendage closure (LAAC) device adapted to pull a left atrial appendage (LAA) closed on itself, the LAAC device comprising:
- a tissue engagement structure adapted to engage tissue within the LAA and pull the tissue inwardly when the tissue engagement structure is driven from an initial actuation level towards a final actuation level;
- and
- a drive assembly adapted to drive the tissue engagement structure from the initial actuation level towards the final actuation level.
A left atrial appendage closure (LAAC) device adapted to pull a left atrial appendage (LAA) closed on itself, the LAAC device comprising:
- a tissue engagement structure adapted to engage tissue within the LAA and pull the tissue inwardly when the tissue engagement structure is driven from an initial actuation level towards a final actuation level, the tissue engagement structure including a plurality of engagement arms that each have a conjoined end and a free end, the conjoined end of each of the plurality of engagement arms secured together, and the free end of each of the plurality of engagement arms adapted to engage tissue within an ostium of the LAA;
- and
- a drive assembly adapted to drive the plurality of engagement arms from the initial actuation level towards the final actuation level, the drive assembly including a threaded core rod aligned with a longitudinal axis of the LAAC device and a threaded member threadedly engaged with the threaded core rod and adapted to translate as the threaded core rod is rotated relative to the threaded member.
Dependencies are inferred from the claim text.