| 摘要 |
<p>The method for forming a biocompatible polymer graft particularly adapted for cardiovascular use comprises the steps of: choosing a suitable, non-sovent, two component, hydrophilic of hydrophobic biocompatible polymer system from which the graft may be formed; choosing a suitable water soluble inorganic salt to be compounded with the biocompatible polymer system; grinding the salt crystals and passing same through a sieve having a pre-determined mesh size; drying the salt crystals; compounding the salt crystals with the biocompatible polymer system; forming a tube from said compounded salt and polymer system by reaction injection or cast molding; and leaching the salt crystals from the formed tube with water, said leaching of said salt crystals providing a tube with a network of interconnecting cells formed in the area from whch the salt crystals have been leached. …<??>Further, according to the present invention, there is also provided a graft particularly adapted for cardiovascular use, said graft comprising a tube which has been reaction injection molded, cast molded, or extruded from a non-solvent, two component hydrophilic or hydrophobic biocompatible polymer system and which has a honeycomb of interconnecting cells throughout the thickness of its wall formed by the leaching of a compounded inorganic salt therefrom.</p> |
