Patent ID: 11934044
Assignee: COOPERVISION INTERNATIONAL LIMITED
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C  G | IPC B  C  G

Claim 19:
20. A method of manufacturing the unworn sterile hydrogel contact lens of claim 1, said method comprising:
(a) polymerizing a polymerizable composition in a contact lens mold to obtain the polymeric lens body;
(b) removing the polymeric lens body from said contact lens mold;
(c) extracting the polymeric lens body in an extraction solvent comprising at least 1.0 μg/ml WS12;
(d) hydrating the polymeric lens body in a hydration liquid to obtain a hydrogel contact lens;
(e) sealing said hydrogel contact lens with packaging solution in a package; and
(f) autoclaving said package.