Inventors:
Joseph DeMeo - Newtown Square PA, US
Patrick E. Hearn - Aston PA, US
Robert L. McDade - Downingtown PA, US
Assignee:
Kensey Nash Corporation - Exton PA
International Classification:
B32B 7/02, A61B 17/58, A61B 17/68, A61B 17/84, A61B 17/86
US Classification:
428212, 428364, 428397, 428399, 606 60, 606 65, 606 67, 606 69, 606 72, 606 73, 606 75, 606 76, 606 77, 606228, 606230, 606231, 264162, 264319, 264320, 264322, 264323
Abstract:
A device is formed by the process into a bone screw or fastener, wherein the head has a degree of polymer alignment and strength, and wherein the shank has a higher degree of polymer alignment and strength. In practice of the present invention, the polymer slug is pressed into the die cavity by the actuation of ram press, causing the slug to conform to the die cavity. Through this process, the polymer molecular orientation is aligned to different degrees, in different zones of the device.