Mandrel for holding a lens blank and method of making a lens using the same

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United States of America Patent

PATENT NO 12103138
APP PUB NO 20240066668A1
SERIAL NO

18490204

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A mandrel for holding and positioning an intraocular lens blank during manufacturing includes a shank portion having a central axis and a lens blank holding section configured to hold the lens blank. The holding section includes a central cavity formed concentrically with the central axis of the mandrel. Projections are formed on a surface of the central cavity and are configured to support a first surface of the lens blank at a fixed distance from the surface of the central cavity. A ring fits within a peripheral portion of the central cavity to hold a second opposing surface of the lens blank. A method for making an intraocular lens using the mandrel includes filling the space formed under the first surface of the lens with a liquid, such as water, freezing the liquid, and then machining and/or milling the second surface of the lens blank.

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Patent Owner(s)

  • BENZ RESEARCH AND DEVELOPMENT CORP.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benz, Patrick H Santa Barbara, US 54 617
Larson, Andrew A Blaine, US 4 0

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