摘要:
Disclosed herein is a method of fabricating a stent assembly comprising radially expanding a polymeric tube to an optimal degree of radial expansion; fabricating a stent from the expanded polymeric tube; and crimping the stent onto a catheter assembly, wherein the temperature of the stent during crimping is an optimal crimping temperature, wherein the optimal degree of radial expansion and the optimal crimping temperature correspond to an optimal fracture toughness exhibited by the crimped stent upon its deployment as a function of degree of radial expansion and crimping temperature.
摘要:
The invention provides an implantable medical device comprising: a structural element, wherein the structural element includes: a continuous phase comprising a first polymer; a discrete phase within the continuous phase, wherein the discrete phase has a second polymer including discrete phase segments; and anchor segments that have substantially the same chemical make up as the first polymer of the continuous phase; wherein at least some of the anchor segments have partially or completely phase-separated from the discrete phase into the continuous phase.
摘要:
Stents fabricated from hydrolytically degradable polymers with accelerated degradation rates and methods of fabricating stents with accelerated degradation rates are disclosed.
摘要:
Methods to expand polymer tubing with desirable or optimum morphology and mechanical properties for stent manufacture and fabrication of a stent therefrom are disclosed.
摘要:
The present invention relates to implantable medical devices comprising a L-lactide-constitutional unit-containing copolymer having a wt % percent crystallinity of 40% or less.
摘要:
Methods to expand polymer tubing with desirable or optimum morphology and mechanical properties for stent manufacture and fabrication of a stent therefrom are disclosed.
摘要:
The present invention relates to implantable medical devices comprising a L-lactide-constitutional unit-containing copolymer having a wt % percent crystallinity of 40% or less.