Prosthetic valve having tapered tip when compressed for delivery
First Claim
1. Assembly for delivering an aortic valve prosthesis through the vasculature of a subject, the assembly comprising:
- a delivery tube; and
the valve prosthesis for attachment to a native aortic valve complex of a subject, the prosthesis configured to assume a compressed delivery state when placed partially within the delivery tube and while being passed through at least a portion of the vasculature of the subject that is remote from the aortic valve complex of the subject, and to assume an uncompressed implantation state when removed from the delivery tube, the prosthesis comprising;
a support frame, which extends partially outside of the delivery tube when the prosthesis assumes the compressed delivery state and while being passed through at least a portion of the vasculature of the subject that is remote from the aortic valve complex of the subject; and
a flexible prosthetic heart valve component, coupled to the support frame,wherein the support frame is shaped so as to define an upstream inlet with respect to blood flow during systole, at least a portion of which extends outside of the delivery tube, andwherein the upstream inlet comprises upstream-most portions that are tapered in an upstream direction toward a central longitudinal axis of the prosthesis when the prosthesis assumes the compressed delivery state.
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0 Petitions
Accused Products
Abstract
Apparatus is provided that includes a valve prosthesis for attachment to a native valve complex of a subject. The prosthesis is configured to assume a compressed delivery state and an uncompressed implantation state. The prosthesis includes a support frame, which is shaped so as to define an upstream inlet having upstream-most portions that are tapered in an upstream direction toward a central longitudinal axis of the prosthesis when the prosthesis assumes the compressed delivery state. The prosthesis further includes a flexible prosthetic heart valve component, coupled to the support frame. Other embodiments are also described.
860 Citations
16 Claims
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1. Assembly for delivering an aortic valve prosthesis through the vasculature of a subject, the assembly comprising:
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a delivery tube; and the valve prosthesis for attachment to a native aortic valve complex of a subject, the prosthesis configured to assume a compressed delivery state when placed partially within the delivery tube and while being passed through at least a portion of the vasculature of the subject that is remote from the aortic valve complex of the subject, and to assume an uncompressed implantation state when removed from the delivery tube, the prosthesis comprising; a support frame, which extends partially outside of the delivery tube when the prosthesis assumes the compressed delivery state and while being passed through at least a portion of the vasculature of the subject that is remote from the aortic valve complex of the subject; and a flexible prosthetic heart valve component, coupled to the support frame, wherein the support frame is shaped so as to define an upstream inlet with respect to blood flow during systole, at least a portion of which extends outside of the delivery tube, and wherein the upstream inlet comprises upstream-most portions that are tapered in an upstream direction toward a central longitudinal axis of the prosthesis when the prosthesis assumes the compressed delivery state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 15, 16)
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9. Assembly for delivering an aortic valve prosthesis through the vasculature of a subject, the assembly comprising:
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a delivery tube; and the valve prosthesis for attachment to a native aortic valve complex of a subject, the prosthesis configured to assume a compressed delivery state when placed partially within the delivery tube and while being passed through at least a portion of the vasculature of the subject that is remote from the aortic valve complex of the subject, and to assume an uncompressed implantation state when removed from the delivery tube, the prosthesis comprising; a support frame, which extends partially outside of the delivery tube when the prosthesis assumes the compressed delivery state and while being passed through at least a portion of the vasculature of the subject that is remote from the aortic valve complex of the subject; and a flexible prosthetic heart valve component, coupled to the support frame, wherein the support frame is shaped so as to define an upstream inlet with respect to blood flow during systole, at least a portion of which extends outside of the delivery tube, wherein the upstream inlet comprises upstream-most portions that are tapered in an upstream direction toward a central longitudinal axis of the prosthesis when the prosthesis assumes the compressed delivery state, and wherein the portion of the upstream inlet has a greatest outer inner diameter that is greater than an outer tube diameter of the delivery tube, when the prosthesis assumes the compressed delivery state when placed partially within the delivery tube, and further comprising an introducer sheath into which the delivery tube and valve prosthesis are placed, the introducer sheath having an inner sheath diameter less than the greatest outer inlet diameter (a) when the prosthesis assumes the compressed delivery state when placed partially within the delivery tube, and (b) before the valve prosthesis is placed into the introducer sheath. - View Dependent Claims (10)
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Specification