E-Class® Vitamin E Blended Highly Cross-Linked Polyethylene
Poly Material Selection
Specific polyethylene has been chosen to manufacture the acetabular liners with a high impact strength, tensile strength, and yield strength.1
The selected polyethylene is subjected to a radiation cycle to facilitate cross-linking of the polymers and enhance wear resistance. The mechanical properties of the material are maintained.
Vitamin E Treatment
Following irradiation, Vitamin E stabilizes any remaining free radicals and continuously prevents oxidation. The presence of Vitamin E eliminates the need for remelting, resulting in improved mechanical strength.
Machining & Final Sterilization
Liners are machined, cleaned, packaged, and sterilized, which does not reintroduce free radicals or cause any other measurable change to the polymer.