Intravascular stent device
First Claim
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1. A self-expanding stent device comprising:
- a small diameter skeletal tubular member having a thin wall and having a proximal end and a distal end;
said wall of said tubular member comprised of a plurality of cells which are formed by a plurality of generally undulating members and a plurality of single strand, unbranched struts;
said struts interconnecting the undulating members, in which said undulating members are generally parallel with the longitudinal axis of said tubular member and are generally parallel to each other;
each undulating member has a positive peak and a negative peak;
each strut has a proximal end and a distal end;
a first undulating member and said struts within a first row have a repeating pattern in which the proximal ends of each of said struts are attached to negative peaks of said undulating member and the distal ends of each of said struts of said first row are attached to positive peaks of a second, adjacent undulating member, and the proximal ends of an adjacent row of struts are attached to positive peaks of said first undulating member; and
the distal ends of each of said struts of said adjacent row are attached to negative peaks of a third, adjacent undulating member, wherein said skeletal tubular member includes a proximal leg;
said proximal leg extends generally parallel to the longitudinal axis of said tubular member and is attached to the proximal end of said skeletal tubular member; and
the proximal leg includes an attachment flange.
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Abstract
A very small diameter intravascular stent device which may be used to occlude or partially occlude an aneurysm in the human brain which is comprised of a thin-walled skeletal cylindrical tube formed of undulating or sinusoidal elements which, when compressed, nest tightly with each other.
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Citations
30 Claims
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1. A self-expanding stent device comprising:
a small diameter skeletal tubular member having a thin wall and having a proximal end and a distal end;
said wall of said tubular member comprised of a plurality of cells which are formed by a plurality of generally undulating members and a plurality of single strand, unbranched struts;
said struts interconnecting the undulating members, in which said undulating members are generally parallel with the longitudinal axis of said tubular member and are generally parallel to each other;
each undulating member has a positive peak and a negative peak;
each strut has a proximal end and a distal end;
a first undulating member and said struts within a first row have a repeating pattern in which the proximal ends of each of said struts are attached to negative peaks of said undulating member and the distal ends of each of said struts of said first row are attached to positive peaks of a second, adjacent undulating member, and the proximal ends of an adjacent row of struts are attached to positive peaks of said first undulating member; and
the distal ends of each of said struts of said adjacent row are attached to negative peaks of a third, adjacent undulating member, wherein said skeletal tubular member includes a proximal leg;
said proximal leg extends generally parallel to the longitudinal axis of said tubular member and is attached to the proximal end of said skeletal tubular member; and
the proximal leg includes an attachment flange.- View Dependent Claims (2, 3, 4, 5, 6)
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7. A self-expanding stent device comprising:
a small diameter skeletal tubular member having a thin wall and having a proximal end and a distal end, said wall of said tubular member comprised of a plurality of cells which are formed by a plurality of sinusoidal members interconnected with a plurality of rows of single-strand, unbranched struts;
said sinusoidal members are generally parallel to the longitudinal axis of said tubular member and are generally parallel to each other;
each sinusoidal member has a plurality of positive peaks and a plurality of negative peaks;
said sinusoidal members and said struts are interconnected and have a repeating pattern in which each strut connects a positive peak of each sinusoidal member with a negative peak of an adjacent sinusoidal member, with struts in each row extending in the same direction, and struts in adjacent rows extending transversely to each other.- View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A self-expanding stent device comprising:
a small diameter skeletal tubular member having a thin wall and having a proximal end and a distal end;
said wall of said tubular member comprised of a plurality of cells which are formed by a plurality of generally undulating members and a plurality of struts;
said undulating members are generally parallel with the longitudinal axis of said tubular member and are generally parallel to each other;
each undulating member has a positive peak and a negative peak;
each strut has a proximal end and a distal end;
said undulating members and said struts within a row are interconnected and have a repeating pattern in which proximal ends of each of said struts are attached to the negative peaks of said undulating members and the distal ends of each of said struts of said row are attached to the positive peaks of said adjacent undulating members, and the proximal ends of an adjacent row of struts are attached to positive peaks of said undulating members and the distal ends of each of said struts of said adjacent row are attached to the negative peaks of adjacent undulating members;
wherein said skeletal tubular member includes a proximal leg, said proximal leg extends generally parallel to the longitudinal axis of said tubular member and is attached to the proximal end of said skeletal tubular member, and the proximal leg includes an attachment flange.- View Dependent Claims (16, 17, 18, 19)
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20. A self-expanding stent device comprising:
a small diameter skeletal tubular member having a thin wall and having a proximal end and a distal end;
said wall of said tubular member comprised of a plurality of cells which are formed by a plurality of sinusoidal members and a plurality of struts;
said sinusoidal members are generally parallel to the longitudinal axis of said tubular member and are generally parallel to each other;
each sinusoidal member has a plurality of positive peaks and a plurality of negative peaks;
said sinusoidal members and said struts are interconnected and have a repeating pattern in which each strut connects a positive peak of each sinusoidal member with a negative peak of each adjacent sinusoidal member, with adjacent struts extending in the same direction;
wherein said tubular member includes a proximal leg;
said proximal leg extends generally parallel to the longitudinal axis of said tubular member and is attached to the proximal end of said tubular member; and
the proximal leg includes an attachment flange.- View Dependent Claims (21, 22, 23, 24)
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25. A self-expanding aneurysm cover comprising:
a small diameter, skeletal, tubular member having a thin wall and having a proximal end and a distal end;
said wall of said tubular member comprised of a plurality of cells which are formed by a plurality of generally undulating members and a plurality of struts;
said undulating members are generally parallel with the longitudinal axis of said tubular member and are generally parallel to each other forming a plurality of parallel rows;
each undulating member has a positive peak and a negative peak;
each strut has a proximal end and a distal end;
said undulating members and said struts within a row are interconnected and have a repeating pattern in which the ends of said struts are attached to the positive and negative peaks of adjacent, undulating members, with adjacent struts extending in the same direction in the same row, and wherein said skeletal tubular member includes at least two proximal legs;
said proximal legs extend generally parallel to the longitudinal axis of said tubular member and are attached to the proximal end of said skeletal tubular member; and
at least one proximal leg includes a T-shaped attachment flange.- View Dependent Claims (26, 27, 28, 29)
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30. A self-expanding stent device comprising:
a small diameter skeletal tubular member having a thin wall and having a proximal end and a distal end;
said wall of said tubular member comprised of a plurality of cells which are formed by a plurality of generally undulating members and a plurality of single strand, unbranched struts;
said struts interconnecting the undulating members, in which said undulating members are generally parallel with the longitudinal axis of said tubular member and are generally parallel to each other;
each undulating member has a positive peak and a negative peak;
each strut has a proximal end and a distal end;
a first undulating member and said struts within a first row have a repeating pattern in which the proximal ends of each of said struts are attached to negative peaks of said undulating member and the distal ends of each of said struts of said first row are attached to positive peaks of a second, adjacent undulating member, and the proximal ends of an adjacent row of struts are attached to positive peaks of said first undulating member; and
the distal ends of each of said struts of said adjacent row are attached to negative peaks of a third, adjacent undulating member, wherein said tubular member further includes at least one distal leg;
said distal leg extending generally parallel to the longitudinal axis of said tubular member and being attached to the distal end of said skeletal tubular member.
Specification