Systems and methods for preventing formation of blood clots in the left atrium

摘要

An implantable liner device for preventing formation of blood clots in a left atrium of a patient's heart. The liner device includes a liner body configured, in some embodiments, to cover a portion of an interior surface of the left atrium, the liner body forming a first opening sized for placement about pulmonary vein ostiums of the left atrium and a second opening for fluid alignment with a mitral valve of the left atrium. The liner body can self-expandable from a collapsed state appropriate for percutaneous delivery to the atrium to an expanded state, with the expanded state having a shape appropriate for covering the portion of the interior surface of the left atrium. The liner body can have a cap-like shape, and can be formed of mesh, fabric, braided material, and biological material such as tissue.

主权项

1. An implantable liner device for preventing formation of blood clots in a left atrium of a patient's heart, the device comprising:
a liner body configured to cover a portion of an interior surface of the left atrium, the liner body having a cup shape defining a closed proximal end and forming a first opening configured for placement about pulmonary vein ostiums of the left atrium and a second opening for fluid alignment with a mitral valve of the left atrium, the first opening being formed through a thickness of the liner body between the closed proximal end and the second opening, wherein the liner device is configured to maintain an expandable outward force against interior walls of the left atrium.