Development of Tissue Interfacing Nonthrombogenic Cannula.

摘要

Percutaneous solid core Silastic rods coated with nylon velour, dacron velour,polyurethane foam,nylon foam,polypeptide foam,polypeptide fabric and carbon buttons were implanted on the dorsal surface of canines,swine and goats. Length of implants varied from a few days up to 24months. Implants were monitored by gross inspection,photographed,subjected to pull tests, biopsied and studied microscopically. Development of infection and or sinus tract was judged as failure. Consistent good results were experienced with the velours. Carbon buttons became marsupialized and foamed,rough cast and smooth surfaces all became infected and/or developed a sinus tract.