Conical stent
First Claim
1. A stent for use in a body passageway, comprising a flexible self-expandible braided tubular wall, characterized in that the tubular wall comprises a first proximal segment having proximal and distal ends and a first outer diameter, a second distal segment having proximal and distal ends and a second outer diameter smaller than said first outer diamater, and a third intermediate segment having a proximal end connected to the distal end of the first segment and a distal end connected to the proximal end of the second segment. [Claims 2-13 are cancelled.]
1 Assignment
0 Petitions
Accused Products
Abstract
The stent comprises a flexible self-expandable braided tubular wall having a proximal segment having an outer diameter, and a distal segment having an outer diameter smaller than the outer diameter of the proximal segment. An intermediate segment is formed between the proximal and distal segments, which forms a truncated cone of which the base is forming the proximal end of the intermediate segment and of which the top is forming the distal end of the intermediate segment. A covering layer is arranged within the tubular wall.
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Citations
47 Claims
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1. A stent for use in a body passageway, comprising a flexible self-expandible braided tubular wall, characterized in that the tubular wall comprises a first proximal segment having proximal and distal ends and a first outer diameter, a second distal segment having proximal and distal ends and a second outer diameter smaller than said first outer diamater, and a third intermediate segment having a proximal end connected to the distal end of the first segment and a distal end connected to the proximal end of the second segment. [Claims 2-13 are cancelled.]
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14. A body insertable prosthesis, including:
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a tubular wall disposed about a longitudinal axis and including a first tubular segment having a first segment diameter;
wherein the tubular wall further includes a second tubular segment disposed distally of the first tubular segment, and the second tubular segment has a proximal end diameter substantially equal to the first segment diameter and is narrowed in the distal direction to a distal end diameter less than the proximal end diameter; and
wherein the first tubular segment is adapted to exert a first level of radial force therealong when the tubular wall is disposed within a body passageway, thereby to anchor the tubular wall within the body passageway. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A process for forming a truncated conical segment in a radially expandable prosthesis, including:
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providing a mandrel with an opening formed therein to define an inside surface, with a segment of the inside surface having a truncated conical shape;
providing a radially expandable tubular structure;
inserting the tubular structure into the opening to a predetermined position with a portion of the tubular structure surrounded by said segment of the inside surface; and
while maintaining the tubular structure in the predetermined position, radially expanding the tubular structure into a surface engagement with the inside surface, to form along said portion of the tubular structure a truncated conical shape substantially conforming to said segment of the inside surface. - View Dependent Claims (36, 37, 38)
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39. A body insertable prosthesis, including:
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a radially expandable tubular wall disposed about a longitudinal axis, and incorporating at least one truncated conical segment having a distal end with a distal end diameter and a proximal end with a proximal end diameter larger than the distal end diameter; and
a covering layer extended along the truncated conical segment. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47)
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Specification