摘要:
A method of crimping a stent on a balloon of a catheter assembly is provided. A polymeric stent is disposed over a balloon in an inflated configuration. The stent is crimped over the inflated balloon to a reduced crimped configuration so that the stent is secured onto the balloon. The balloon wall membrane is wedged or pinched between the strut elements of the stent for increasing the retention of the stent on the balloon.
摘要:
The invention provides a method for fabricating an implantable medical device to increase biocompatibility of the device, the method comprising: heat setting a polymer construct, wherein the polymer construct is at a temperature range of from about Tg to about 0.6(Tm−Tg)+Tg such that the set polymer construct comprises a crystalline structure having crystals at a size less than about 2 microns; and fabricating an implantable medical device from the heat set polymer construct.
摘要:
This invention relates to stents, a type of implantable medical device, with an antiproliferative coating and a prohealing luminal coating and methods of fabricating stents with an antiproliferative coating and a prohealing luminal coating.
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:
Methods for improved stent retention on an expandable member during delivery are disclosed. Methods include fabricating delivery systems including a degradable or water soluble sheath over the stent, the expandable member, or both for improving retention of the stent on the expandable member during delivery.
摘要:
A device and a method of manufacturing an implantable medical device, such as a stent, are described herein. The device includes a metallic region composed of a bioerodable metal and a polymer region composed of a biodegradable polymer contacting the metallic region. The metallic region may erode at a different rate when exposed to bodily fluids than the polymer region when exposed to bodily fluids. In certain embodiments, the polymer region is an outer layer and the metallic region is an inner layer of the device.
摘要:
This disclosure describes a method for crimping a polymeric stent onto a catheter for percutaneous transluminal coronary angioplasty or other intraluminal interventions. The method comprises crimping the stent onto a catheter when the polymer is at a target temperature other than ambient temperature. The polymer can optionally comprise drug(s).