| 摘要 |
<p>Non-expanded porous PTFE materials and products are disclosed. More particularly, grafts and stent-grafts incorporating the non-porous PTFE materials comprising a tubular extrudate comprising a PTEE matrix having distributed therein discrete domains of an extractable polymeric material, wherein upon exposure to sufficient dissolving medium or degradation temperature, said discrete domains are extracted from said matrix to create pores in said tubular structure are described.</p> |
