Oriented polymer implantable device and process for making same

Details Oriented polymer implantable device and process for making same Oriented polymer implantable device and process for making same

2004-02-17

2008-05-27

Chen, Vivian (Department: 1794)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C428S364000, C428S397000, C428S399000, C606S060000, C606S065000, C606S067000, C606S064000, C606S075000, C606S075000, C606S075000, C606S076000, C606S077000, C606S228000, C606S230000, C606S231000, C264S162000, C264S319000, C264S320000, C264S322000, C264S323000

Reexamination Certificate

active

07378144

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.

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