Intravascular stent device
First Claim
Patent Images
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 interconnected, non-inverted horizontal and inverted horizontal S-shaped members;
said interconnected S-shaped members are generally parallel with the longitudinal axis of said tubular member;
each interconnected S-shaped member has a proximal end, a distal end, a proximal intermediate section, and a distal intermediate section; and
, said interconnected S-shaped members having a repeating pattern comprised of a configuration in which said proximal end of each non-inverted horizontal S-shaped member is attached to said distal intermediate section of an adjacent inverted horizontal S-shaped member, said distal end of each non-inverted horizontal S-shaped member is attached to said proximal intermediate section of another adjacent inverted horizontal S-shaped member, said proximal end of each inverted horizontal S-shaped member is attached to said distal intermediate section of an adjacent non-inverted horizontal S-shaped member, and said distal end of each inverted horizontal S-shaped member is attached to said proximal intermediate section of another adjacent non-inverted horizontal S-shaped member.
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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 S-shaped or sinusoidal elements which, when compressed, nest tightly with each other.
258 Citations
24 Claims
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1. A self-expanding stent device comprising:
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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 interconnected, non-inverted horizontal and inverted horizontal S-shaped members;
said interconnected S-shaped members are generally parallel with the longitudinal axis of said tubular member;
each interconnected S-shaped member has a proximal end, a distal end, a proximal intermediate section, and a distal intermediate section; and
,said interconnected S-shaped members having a repeating pattern comprised of a configuration in which said proximal end of each non-inverted horizontal S-shaped member is attached to said distal intermediate section of an adjacent inverted horizontal S-shaped member, said distal end of each non-inverted horizontal S-shaped member is attached to said proximal intermediate section of another adjacent inverted horizontal S-shaped member, said proximal end of each inverted horizontal S-shaped member is attached to said distal intermediate section of an adjacent non-inverted horizontal S-shaped member, and said distal end of each inverted horizontal S-shaped member is attached to said proximal intermediate section of another adjacent non-inverted horizontal S-shaped member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A self-expanding stent device comprising:
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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 interconnected sinusoidal members;
said sinusoidal members are generally parallel to the longitudinal axis of said tubular member;
each sinusoidal member extends over one and a half periods of a sinusoidal curve and each has a proximal end, a distal end, a proximal peak, and a distal peak;
said sinusoidal members have a repeating pattern in which said proximal end of each sinusoidal member is attached to said distal peak of an adjacent sinusoidal member and said distal end of each sinusoidal member is attached to said proximal peak of another adjacent sinusoidal member.- View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
said tubular member having an expanded larger diameter which allows said tubular member to exert an outward, radial force on said vessel once said tubular member is deployed.
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11. A self-expanding stent device as defined in claim 10, wherein said stent device is constructed from a nickel-titanium alloy.
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12. A self-expanding stent device as defined in claim 9, 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;
the proximal leg includes an attachment flange.
- 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;
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13. A self-expanding stent device as defined in claim 12, wherein said proximal leg is biased outwardly from the longitudinal axis of said tubular member.
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14. A self-expanding stent device as defined in claim 12, wherein said proximal leg includes a radiopaque marker.
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15. A self-expanding stent device as defined in claim 9, wherein said tubular member includes at least one distal leg;
- said distal leg extends generally parallel to the longitudinal axis of said tubular member and is attached to the distal end of said tubular member.
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16. A self-expanding stent device as defined in claim 15, wherein said distal leg includes a radiopaque marker.
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17. A self-expanding aneurysm cover comprising:
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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 interconnected, non-inverted horizontal and inverted horizontal S-shaped members;
said interconnected S-shaped members are generally parallel with the longitudinal axis of said tubular member;
each interconnected S-shaped member has a proximal end, a distal end, a proximal intermediate section, and a distal intermediate section; and
,said interconnected S-shaped members having a repeating pattern comprised of a configuration in which said proximal end of each non-inverted horizontal S-shaped member is attached to said distal intermediate section of an adjacent inverted horizontal S-shaped member, said distal end of each non-inverted horizontal S-shaped member is attached to said proximal intermediate section of another adjacent inverted horizontal S-shaped member, said proximal end of each inverted horizontal S-shaped member is attached to said distal intermediate section of an adjacent non-inverted horizontal S-shaped member, and said distal end of each inverted horizontal S-shaped member is attached to said proximal intermediate section of another adjacent non-inverted horizontal S-shaped member. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification