B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 11/02 (2006.01) A61F 2/16 (2006.01)
Patent
CA 2525901
The invention is a mold and method for using the mold to make a multi-stage intraocular lens. The mold is provided with a gate in fluid communication with a lens portion and/or haptic portion of the mold core. In addition, a gasket is provided around the mold core. As molding material is introduced into the mold via the gate, a vacuum is drawn around and through the gasket to evacuate air trapped in the mold core and to help pull the material through the mold core.
L'invention concerne un moule et un procédé d'utilisation dudit moule dans la fabrication d'une lentille intra-oculaire à étages multiples. Ce moule comprend une porte en communication liquide avec une partie lentille et/ou une partie haptique du noyau de moule. Un joint est également disposé autour dudit noyau de moule. A mesure qu'un matériau de moulage est introduit dans le moule par la porte, un vide se forme atour du joint et à travers ce dernier, de sorte à évacuer l'air emprisonné dans le noyau de moule et à favoriser l'extraction du matériau à travers le noyau de moule.
Kyburz Gene Theodore
Sarfarazi Faezeh Mona
Mccarthy Tetrault Llp
Sarfarazi Faezeh Mona
LandOfFree
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