Intravascular stent device
First Claim
Patent Images
1. A self-expanding stent comprising:
- a small diameter skeletal tubular member having a thin wall and a longitudinal axis;
said wall of said skeletal tubular member includes a plurality of cells which are formed by a plurality of interconnected sinusoidal members, said plurality of sinusoidal members are generally parallel to the longitudinal axis of said skeletal tubular member and in which no substantial portion of said sinusoidal members extends in a direction perpendicular to the longitudinal axis of said tubular member when the tubular member is expanded, said sinusoidal members are generally parallel to each other, and each of said plurality of sinusoidal members has a plurality of positive and negative peaks;
the positive peaks of said sinusoidal members are connected to the negative peaks of adjacent sinusoidal members so as to form a repeating pattern of cells along the skeletal tubular member; and
wherein a junction is formed at an end of the skeletal tubular member where a positive peak of one of said sinusoidal members is connected to a negative peak of an adjacent one of said sinusoidal members, a longitudinal leg member extends from said junction in a direction parallel to the longitudinal axis of the skeletal tubular member and said leg member terminates said connected sinusoidal members, and a helically wound coil is disposed about said longitudinal leg member.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a very small diameter intravascular stent, or aneurysm cover, which may be used to occlude, or partially occlude, an aneurysm in the human brain. The stent is comprised of a thin-walled skeletal tubular member formed of interconnected sinusoidal members to thereby form a pattern of cells along the skeletal tubular member. The stent also includes anchor members, which are comprised of a longitudinal leg member having a radiopaque coil disposed about the leg member, which serve to retain the stent during delivery of the stent.
-
Citations
26 Claims
-
1. A self-expanding stent comprising:
-
a small diameter skeletal tubular member having a thin wall and a longitudinal axis; said wall of said skeletal tubular member includes a plurality of cells which are formed by a plurality of interconnected sinusoidal members, said plurality of sinusoidal members are generally parallel to the longitudinal axis of said skeletal tubular member and in which no substantial portion of said sinusoidal members extends in a direction perpendicular to the longitudinal axis of said tubular member when the tubular member is expanded, said sinusoidal members are generally parallel to each other, and each of said plurality of sinusoidal members has a plurality of positive and negative peaks; the positive peaks of said sinusoidal members are connected to the negative peaks of adjacent sinusoidal members so as to form a repeating pattern of cells along the skeletal tubular member; and wherein a junction is formed at an end of the skeletal tubular member where a positive peak of one of said sinusoidal members is connected to a negative peak of an adjacent one of said sinusoidal members, a longitudinal leg member extends from said junction in a direction parallel to the longitudinal axis of the skeletal tubular member and said leg member terminates said connected sinusoidal members, and a helically wound coil is disposed about said longitudinal leg member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 25)
-
-
12. A self-expanding stent comprising:
-
a small diameter skeletal tubular member having distal and proximal ends, a thin wall and a longitudinal axis, said wall of said skeletal tubular member includes a plurality of cells which are formed by a plurality of interconnected sinusoidal members, said plurality of sinusoidal members are generally parallel to the longitudinal axis of said skeletal tubular member and in which no substantial portion of said sinusoidal members extends in a direction perpendicular to the longitudinal axis of said tubular member when the tubular member is expanded, said sinusoidal members are generally parallel to each other, and each of said plurality of sinusoidal members has a plurality of positive and negative peaks, said positive peaks of said sinusoidal members are directly connected to negative peaks of adjacent sinusoidal members so as to form a repeating pattern of cells along a length of said skeletal tubular member; and
,a plurality of junctions are formed at both the distal and proximal ends of the skeletal tubular member where the positive peaks of the sinusoidal members are directly connected to the negative peaks of adjacent sinusoidal members, four longitudinal leg members each of which extend from one of said plurality of junctions at the distal end of the skeletal tubular member and from two longitudinal leg members each of which extend from one of said plurality of junctions at the proximal end of the skeletal tubular member, said leg members extending in a direction parallel to the longitudinal axis of the skeletal tubular member, and a helically wound radiopaque coil is disposed about each of said longitudinal leg members. - View Dependent Claims (13)
-
-
14. A self-expending stent comprising:
-
a small diameter thin-walled tubular member having a longitudinal axis; said tubular member having cut-out portions to define a skeletal tubular member including a plurality of cells which are formed by a plurality of interconnected sinusoidal members, said plurality of sinusoidal members are generally parallel to the longitudinal axis of said skeletal tubular member and are generally parallel to each other, and each of said plurality of sinusoidal members has a plurality of positive and negative peaks; the positive peaks of said sinusoidal members are connected to the negative peaks of adjacent sinusoidal members so to form a repeating pattern of cells along the skeletal tubular member; and wherein a junction is formed at an end of the skeletal tubular member where a positive peak of one of said sinusoidal members is connected to a negative of an adjacent one of said sinusoidal members, a longitudinal leg member extends from said junction in a direction parallel to the longitudinal axis of the skeletal tubular member, and a helically wound coil is disposed about said longitudinal leg member. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26)
-
Specification