SYSTEM AND METHOD TO LIMIT CEREBRAL ISCHEMIA
First Claim
1. A system to limit cerebral ischemia occurring as a consequence of aortic valve replacement, the system comprising:
- an aortic valve having a proximal end and a distal end;
a sleeve having a proximal end and a distal end, the proximal end of the sleeve disposed at the distal end of the aortic valve; and
a filter attached to the distal end of the sleeve to receive blood and particles passing from the proximal end of the sleeve to the distal end of the sleeve and to separate the particles from the blood.
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Accused Products
Abstract
A system to limit cerebral ischemia occurring as a consequence of aortic valve replacement includes an aortic valve having proximal and distal ends, a sleeve having proximal and distal ends, the proximal end of the sleeve disposed at the distal end of the aortic valve, and a filter attached to the distal end of the sleeve to receive blood and particles passing from the proximal end of the sleeve to the distal end of the sleeve and to separate the particles from the blood. A related method includes introducing a system into a heart of a patient, the system comprising an aortic valve having proximal and distal ends and a sleeve having a proximal end disposed at the distal end of the valve, implanting the valve in an aortic valve annulus, and filtering blood that has passed through the valve into the sleeve.
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Citations
20 Claims
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1. A system to limit cerebral ischemia occurring as a consequence of aortic valve replacement, the system comprising:
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an aortic valve having a proximal end and a distal end; a sleeve having a proximal end and a distal end, the proximal end of the sleeve disposed at the distal end of the aortic valve; and a filter attached to the distal end of the sleeve to receive blood and particles passing from the proximal end of the sleeve to the distal end of the sleeve and to separate the particles from the blood. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of limiting cerebral ischemia occurring as a consequence of aortic valve replacement, the method comprising:
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introducing a system into a heart of a patient, the system comprising an aortic valve having a proximal end and a distal end and a sleeve having a proximal end disposed at the distal end of the valve; implanting the valve in an aortic valve annulus; and filtering blood that has passed through the valve into the sleeve. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A filter assembly for trapping debris caused by implantation of an artificial aortic valve, comprising:
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a sleeve having a proximal end and a distal end, the proximal end of the sleeve being connectable to a self-expanding stent frame of a valve, the sleeve tapering from a first diameter at the proximal end thereof, the first diameter equaling a diameter of a distal end of the valve, inwardly to a second diameter in a direction toward the distal end of the sleeve; the valve having a proximal end and a distal end, the valve including a valve region comprising an organic biocompatible material with a distal end defining a scalloped skirt, and the self-expanding stent frame attached to the valve region, the stent frame defined by a framework of wire-like structural elements defining a plurality of open cells.
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Specification