摘要:
Medical devices, such as endoprostheses, and methods of making the devices are disclosed. The medical device can include a composite cover formed of a deposited metallic film and one or more polymer layers. The polymer layers contribute to mechanical or biological properties of the endoprosthesis.
摘要:
A method of handling an endoprosthesis includes providing an endoprosthesis having a deposited metal film with a thickness of about 50 microns or less and reducing the diameter of the endoprosthesis by sequentially collapsing different portions of the prosthesis. The collapsed endoprosthesis can be positioned with a lumen of an endoprosthesis delivery device. Different portions of the endoprosthesis can be sequentially and radially collapsed. For example, the endoprosthesis can be disposed within a hollow form of varying diameter.
摘要:
An apparatus for forming visible lines on a surface on a temporary basis comprises at least one laser which is directed at phosphors provided in or on the surface and means for controlling the laser to cause it to sweep the area on which the lines are to be marked. Optical deflectors are provided for guiding the laser beam. A first method of forming such lines comprises sweeping the surface incorporating the phosphors and on which the lines are to be marked with at least one laser beam. In a second method, the area is again swept by the at least one laser beam and, after the phosphors have been activated, each laser beam is deactivated and the phosphors are stimulated by flood radiation. Such phopsphorescence can then be quenched at a desired time.