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US 2003/0114919 A1Published application
Polymeric stent with metallic rings
OwnerJesse McQuiston, Santosh Prabhuinventors
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Abstract
An expandable stent for implantation in a body lumen, such as a coronary artery, consists of radially expandable cylindrical rings generally aligned on a common axis and disposed around a polymeric tube. The polymeric tube provides longitudinal and flexural flexibility to facilitate delivery through tortuous body lumens and the rings provide the necessary radial strength to maintain the patency of a vessel and to resist collapse.
Claims41
An intravascular stent, comprising:
- a plurality of metallic cylindrical rings having first and second delivery diameters;
- a polymeric tube having first and second delivery diameters and an outer surface;
- wherein the cylindrical rings are aligned along a longitudinal axis of the stent and attached to the outer surface of the polymeric tube.
A method for forming an intravascular stent, comprising:
- fitting a plurality of outer mold covers around a mandrel;
- injecting a polymer into the outer mold covers to form a polymeric tube;
- removing the outer mold covers;
- forming a plurality of metallic cylindrical rings;
- and
- fitting the plurality of metallic cylindrical rings over the polymeric tube.
3 more elements
A method for forming an intravascular stent, comprising:
- means for forming a polymeric tube;
- means for forming a plurality of cylindrical rings;
- and
- means for securing the cylindrical rings on an outer surface of the polymeric tube.
1 more element
Dependencies are inferred from the claim text.