Abstract:
The present invention relates to a composition of a first single enantiomer homopolymer and a separate stereocomplex formed of a second single enantiomer homopolymer and it mirror image enantiomer, wherein the first and second single enantiomer homopolymers can be the same or different.
Abstract:
The invention provides a method of manufacturing a stent, the method comprising: disposing a polymeric tube (400) into a cylindrical mold, the cylindrical mold having a variable diameter along a portion of the inside surface of the mold(410,420); radially expanding the tube by blowing a gas or liquid into the cylindrical mold, the outside surface of the tube conforming to the variable diameter portion of the outside surface of the mold, causing the radially expanded tube to have a variable diameter along the conformed length of the tube; and fabricating a stent from the expanded tube.
Abstract:
Delivery systems are disclosed for bioresorbable scaffolds that decrease in length when expanded to a deployment diameter that allow accurate positioning of the scaffold at a lesion. The scaffolds are mounted on a catheter that includes marker bands that are positioned interior to the proximal and distal edges of the crimped scaffold to anticipate the shortening of the scaffold upon deployment. Delivery systems are further disclosed for bioresorbable scaffolds that increase in length when expanded to a deployment diameter that allow accurate positioning of the scaffold at a lesion. The scaffolds are mounted on a catheter that includes marker bands that are positioned exterior to the proximal and distal edges of the crimped scaffold to anticipate the lengthening of the scaffold upon deployment.
Abstract:
Methods of treating coronary artery disease (CAD) with bioresorbable stents resulting in reduced angina or non-ischemic chest pain are described. Methods of treatment and devices for treatment of angina and post-procedural chest pain that include anti-angina agents incorporated into the device are disclosed.
Abstract:
A method of laser machining a polymer construct to form a stent (10) that includes a bioresorbable polymer and an absorber that increases absorption of laser energy during laser machining. The laser cuts the tubing (414) at least in part by a multiphoton absorption mechanism and the polymer and absorber have a very low absorbance or are transparent to light at the laser wavelength.
Abstract:
A medical device implantable within a peripheral vessel of the body composed of a bioresorbable polymer is disclosed. The device has a high resistance to fracture, is very flexible, and has a high crush recovery when subjected to crushing, axial, or torsional forces.
Abstract:
Segmented scaffolds composed of disconnected scaffold segments with overlapping end rings are disclosed. Scaffolds with at least one discontinuous link are also disclosed.