Prosthesis for placement at a luminal OS
First Claim
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1. A prosthesis capable of being carried through a patient'"'"'s vasculature over a delivery catheter and of being deployed at an Os, the prosthesis comprising:
- a radially expandable scaffold section; and
at least two elongate members extending axially from a proximal end of the radially expandable scaffold section;
a restraining device comprising a first circumferential span coupled with two of the elongate members and a second circumferential span coupled with two of the elongate members, the first and second circumferential spans each being spaced from the radially expandable scaffold section, the restraining device having a first configuration for maintaining the at least two elongate members in a collapsed configuration for advancement through the patient'"'"'s vasculature, the restraining device also having a second configuration for permitting the at least two elongate members to expand to an expanded configuration, the restraining device having a proximal end located at or distal of a proximal end of the at least two elongate members, the restraining device having a distal end located on a proximal portion of the at least two elongate members,wherein at least a majority of expansion of the at least two elongate members from the collapsed configuration to the expanded configuration is provided by an outward pressure from the delivery catheter,wherein the scaffold section is configured to be not radially constrained by a structure that is separable from the delivery catheter when being carried through the patient'"'"'s vasculature.
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Abstract
An embodiment of the invention provides a prosthesis delivery system comprising a delivery catheter having an expandable member and a prosthesis carried over the expandable member. The prosthesis includes a radially expandable scaffold section and at least two anchors extending axially from an end thereof; and means for capturing at least the anchors to prevent the anchors from divaricating from the expandable member as the catheter is advanced through a patient'"'"'s vasculature.
313 Citations
20 Claims
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1. A prosthesis capable of being carried through a patient'"'"'s vasculature over a delivery catheter and of being deployed at an Os, the prosthesis comprising:
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a radially expandable scaffold section; and at least two elongate members extending axially from a proximal end of the radially expandable scaffold section; a restraining device comprising a first circumferential span coupled with two of the elongate members and a second circumferential span coupled with two of the elongate members, the first and second circumferential spans each being spaced from the radially expandable scaffold section, the restraining device having a first configuration for maintaining the at least two elongate members in a collapsed configuration for advancement through the patient'"'"'s vasculature, the restraining device also having a second configuration for permitting the at least two elongate members to expand to an expanded configuration, the restraining device having a proximal end located at or distal of a proximal end of the at least two elongate members, the restraining device having a distal end located on a proximal portion of the at least two elongate members, wherein at least a majority of expansion of the at least two elongate members from the collapsed configuration to the expanded configuration is provided by an outward pressure from the delivery catheter, wherein the scaffold section is configured to be not radially constrained by a structure that is separable from the delivery catheter when being carried through the patient'"'"'s vasculature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A prosthesis capable of being carried through a patient'"'"'s vasculature over a delivery catheter and of being deployed at an Os, the prosthesis comprising:
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a radially expandable scaffold section; and at least two elongate members extending axially from an end of the radially expandable scaffold section, the at least two elongate members having a low profile configuration and a higher profile configuration, the at least two elongate members transitioning from the low profile configuration to the higher profile configuration primarily under outward pressure from the delivery catheter; a capturing structure configured to prevent the at least two elongate members from divaricating from the low profile configuration as the prosthesis is advanced through the patient'"'"'s vasculature, a proximal end of the capturing structure located at or distal of a proximal end of the at least two elongate members, a distal end of the capturing structure located on a proximal portion of the at least two elongate members, wherein the scaffold section is configured to be not radially constrained by a structure that is separable from the delivery catheter when being carried through the patient'"'"'s vasculature. - View Dependent Claims (18, 19, 20)
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Specification