| 摘要 |
A method for bulk manufacture of a microporous sheet material from polyolefin fibers, where an average pore size in the material is controlled by calendering the material through low-energy rollers at a suitable temperature, pressure and speed. The material is useful to selectively pass or reject certain substances, and may be combined in a resilient, tube-shaped configuration to form a self-regenerating drug-delivering vascular stent that reduces inflammation at the stent site to prevent restenosis. |
