Flow obstructor and transapical closure device

摘要

Medical devices and methods for closing an anatomical aperture in a tissue are disclosed. The medical devices can include distal and proximal support structures, which can include a plurality of anchor members. A connection element can connect the distal and proximal support structures, and be configured to twist to create a seal within the medical device. In certain embodiments, a sheath about the medical device can be retracted to expose the distal support structure, which can allow it to revert to an anchoring configuration from a delivery configuration, such that the anchor members can engage an interior surface of the tissue. After twisting the connection element to form a seal, the sheath can be further retracted to expose the proximal support structure, which can allow it to revert to an anchoring configuration from a delivery configuration, such that the anchor members can engage an exterior surface of the tissue.

主权项

1. A medical device for closing an anatomical aperture in a tissue having an interior surface and an exterior surface, comprising:
a distal support structure comprising a ring having a distal face and a proximal face, the distal face having a first plurality of anchor members; a proximal support structure comprising a ring having a distal face and a proximal face, the proximal face having a second plurality of anchor members; and a connection element connecting the distal support structure and the proximal support structure, wherein the connection element is configured to be twisted about a central axis of the medical device to create a seal, such that the connection element in a twisted position closes a central lumen of the medical device that extends therethrough.