Stentless heart valve and holder
First Claim
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1. A combination valve holder and prosthetic aortic segment comprising:
- (a) a stentless aortic valve prosthesis comprising a low-pressure tanned animal aortic segment having intact the aortic valve, the aortic valve having left and right coronary arteries, a right coronary septal shelf, an inflow rim, an outflow rim and a pseudoannulus line, the aortic valve retaining its natural shape and flexibilty;
and coronary openings formed by cutting away the left and right coronary arteries while leaving intact a band of aortic wall at least about 2 millimeters wide surrounding the coronary openings; and
a suturable covering provided with edges and affixed along the entire right coronary septal shelf externally, the inflow rim both internally and externally, and covering at the outflow rim an area running internally directly above the pseudoannulus line and along the coronary openings, leaving uncovered a portion of aortic wall from 2 to 3.5 millimeters in width between the edges of the covering and each valve commissure;
(b) a disposable holder body having an elongate detachable handle; and
(c) a plurality of means for detachably attaching the holder body to the covering on the aortic segment.
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Abstract
A stentless aortic heart valve having a disposable holder with a removable handle can be manually reversed by the physician during suturing to provide a relatively unobstructed view into the patient'"'"'s aorta. A covering applied to strategic regions on the exterior and interior of the device provides a firm ground for suturing the prosthetic heart valve into position, and for attaching the detachable holder.
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Citations
33 Claims
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1. A combination valve holder and prosthetic aortic segment comprising:
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(a) a stentless aortic valve prosthesis comprising a low-pressure tanned animal aortic segment having intact the aortic valve, the aortic valve having left and right coronary arteries, a right coronary septal shelf, an inflow rim, an outflow rim and a pseudoannulus line, the aortic valve retaining its natural shape and flexibilty; and coronary openings formed by cutting away the left and right coronary arteries while leaving intact a band of aortic wall at least about 2 millimeters wide surrounding the coronary openings; and a suturable covering provided with edges and affixed along the entire right coronary septal shelf externally, the inflow rim both internally and externally, and covering at the outflow rim an area running internally directly above the pseudoannulus line and along the coronary openings, leaving uncovered a portion of aortic wall from 2 to 3.5 millimeters in width between the edges of the covering and each valve commissure; (b) a disposable holder body having an elongate detachable handle; and (c) a plurality of means for detachably attaching the holder body to the covering on the aortic segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A combination valve holder and prosthetic aortic segment comprising:
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(a) a stentless aortic valve prosthesis comprising a low pressure tanned porcine aortic segment having intact the aortic valve, the aortic valve having left and right coronary arteries, a right coronary septal shelf, an inflow rim, an outflow rim and a pseudoannulus line, the aortic valve retaining its natural shape and flexibility; and coronary openings formed by cutting away the left and right coronary arteries while leaving intact a band of aortic wall at least about 2 millimeters wide surrounding the coronary openings; and cloth provided with edges and covering the entire right coronary septal shelf externally, the inflow rim both internally and externally, and covering at the outflow rim an area running internally directly above the pseudoannnulus line and along the coronary openings, leaving uncovered a portion of aortic wall from 2 to 3.5 millimeters in width between the edges of the cloth and each valve commissure; wherein the cloth is stitched flat to the aortic segment along each edge with nondissolvable biocompatible thread and wherein a circular band of aortic wall remains intact for a distance of from 2 to 4 millimeters from the pseudoannulus line to an edge of the coronary openings; and further wherein the band of aortic wall can be trimmed to remove portions contiguous to the coronary artery openings without impairing the aortic valve; (b) a disposable holder body having an elongate detachable handle; and (c) a plurality of means for detachably attaching the holder body to the covering on the aortic segment.
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33. A combination valve holder and prosthetic aortic segment comprising:
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(a) a stentless aortic valve prosthesis comprising a reversible porcine aortic segment having intact the aortic valve, the aortic valve having left and right coronary arteries, a right coronary septal shelf, an inflow rim, an outflow rim and a pseudoannulus line, the aortic valve retaining its natural shape and flexibility; and coronary openings formed by cutting away the left and right coronary arteries while leaving intact a band of aortic wall at least about 2 millimeters wide surrounding the coronary openings; and cloth provided with edges and covering the entire right coronary septal shelf externally, the inflow rim both internally and externally, and covering at the outflow rim an area running internally directly above the pseudoannulus line and along the coronary openings, leaving uncovered a portion of aortic wall from 2 to 3.5 millimeters in width between the edges of the cloth and each valve commissure; wherein the cloth is stitched flat to the aortic segment along each edge with nondissolvable biocompatible thread and wherein the aortic wall remains intact for a distance of from 2 to 4 millimeters from the pseudoannular line to an edge of the coronary openings, and wherein the distance from the edge of the coronary openings to the commissures is from about 2 to 5 millimeters; (b) a disposable holder body having an elongate detachable handle; and (c) a plurality of means for detachable attaching the holder body to the covering on the aortic segment.
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Specification