Emboli guarding device
AssigneeMedtronic, Inc.
InventorsMark C. S. Shu, Charles Paul Tabor, Angela Shu
Life of this patent
Estimating the term…
Abstract
A device including a stent structure or frame to which a sheet is attached for use in minimizing or preventing emboli, particles. and/or air bubbles from migrating into certain areas of the anatomy. The device can be placed in the blood stream in an area of the heart, such as the aortic arch, to direct particles toward the descending aorta rather than toward the brain. The sheet of the device can be a thin film material, which may include multiple fenestrations that are smaller in size than the particles that are to be filtered.
Claims20
A device for directing particle flow in a bloodstream, the device comprising:
- a frame comprising an inflow end, an outflow end, and an internal fluid passageway extending between the inflow and outflow ends;
- and
- a filtering sheet extending across at least a portion of the frame between the inflow and outflow ends.
A method of percutanously delivering a device to an aortic arch of a patient, the method comprising the steps of:
- providing a device comprising a frame comprising an inflow end, an outflow end, and an internal fluid passageway extending between the inflow and outflow ends, and a filtering sheet extending across at least a portion of the frame between the inflow and outflow ends;
- compressing the device;
- loading the device on a delivery system;
- percutaneously delivering the device to the aortic arch with the delivery system;
- and
- expanding the device within the aortic arch.
A delivery system comprising a proximal end, a distal end, a self-expanding mesh portion adjacent to the distal end, and a moveable stability layer having an internal area within which the mesh portion is containable, wherein the stability layer is proximally moveable to release the mesh portion from the internal area of the stability layer, and wherein the mesh portion in its released condition comprises an outer diameter that is larger than an outer diameter of the stability layer.
Dependencies are inferred from the claim text.