SONG, Lin,LAWRYNOWICZ, Daniel E.,LE, Kim-phuong Nguyen,TENHUISEN, Kevor Shane
申请号：
AU2015201384
公开号：
AU2015201384A1
申请日:
2015.03.17
申请国别(地区):
AU
年份:
2015
代理人:
摘要：
#$%^&*AU2015201384A120151008.pdf#####ABSTRACT OF THE DISCLOSURE A method for making an ultra-high weight polyethylene (UHMWPE) medical implant starts with obtaining a preform consolidated from UHMWPE resin. Thereafter the preform is hot isostaticly pressed at a temperature between 150C and 190C at a pressure up to 30,000 psi. After the hot isostatic pressing the preform is sequentially irradiated in a solid state at a total radiation dose of 2 to 10 MRad. The irradiated UHMWPE preform is then heated to a temperature of about 110C to about 190C for between 2 to 10 hours. The irradiated and heated preform is then cooled after each irradiation and heating to at or below 50C, and thereafter a medical implant is formed from the preform. Alternately, the process can be performed on the medical implant itself.
