Temporary stents and stent-grafts
First Claim
1. A temporary stent, comprising:
- a first contractible and expandable stent body having a loosely-interlocked knitted structure formed by twisting at least one filament in a spiral fashion and being configured to be expanded to form a cylindrical shape as a normal state;
a first contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state;
a middle strut maintained in a contracted configuration;
a second contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state;
a second contractible and expandable stent body configured to be expanded to form a cylindrical shape as a normal state;
a third contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state; and
a strut, in serial order.
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Accused Products
Abstract
There is provided A temporary stent comprising a first contractible and expandable stent body having a loosely-interlocked knitted structure formed by twisting at least one filament W in a spiral fashion and being configured to be expanded to form a cylindrical shape as a normal state; a first contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state; a middle strut maintained in a contracted configuration; a second contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state; a second contractible and expandable stent body configured to be expanded to form a cylindrical shape as a normal state; a third contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state; and a strut, in serial order. The filament W is formed of, for example, a shape-memory material.
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Citations
15 Claims
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1. A temporary stent, comprising:
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a first contractible and expandable stent body having a loosely-interlocked knitted structure formed by twisting at least one filament in a spiral fashion and being configured to be expanded to form a cylindrical shape as a normal state;
a first contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state;
a middle strut maintained in a contracted configuration;
a second contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state;
a second contractible and expandable stent body configured to be expanded to form a cylindrical shape as a normal state;
a third contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state; and
a strut, in serial order. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification