Pilkington Visioncare, Inc.

Intella Interventional Systems, Inc.

Pilkington Barnes Hind, Inc.

Ashok R Thakrar

John M Evans

Praful Doshi

Khushroo Gandhi

C Edward Williams

Richard S Skipper

Norman M Van Houten

Peter H Stafford

John T Phoenix

Disclosed are medical devices of aliphatic polyketone polymers and/or polyketone polymer compositions comprising at least one aliphatic polyketone and at least one plasticizer. Also disclosed are polyketone compositions that comprise at least one aliphatic polyketone and at least one plasticizer.

Aliphatic polyketone compositions and medical devices

Disclosed are medical devices including a composition that includes an aliphatic polyketone and a thermoplastic polymer.

Medical devices made from improved polymer blends

Methods of manufacturing a contact lens form a mold which has a first section formed from a first material and a second section formed from a second material. The methods permit the facile preparation of contact lenses having two or more differing materials, for example, a composite lens, a bifocal lens, a trifocal lens and the like.

Method of manufacturing a contact lens

A contact lens of generally disc-like configuration having a central axis extending through the contact lens and about which the contact lens is substantially symmetric in configuration. The contact lens has

Contact lens

A method of manufacturing a contact lens with an iris simulating pattern by moulding comprising applying to the mould at least two differing designs so as to form an overall pattern. This overall pattern is transferred to the surface or surfaces of the contact lens during moulding and curing thereof, where the designs transferred interact with each other to substantially cover the iris and produce a coloured natural simulation of the iris of the eye when in use.

Hydrophobic casting moulds are treated with electrical discharge, such as corona discharge, to provide enhanced compatibility with hydrophilic objects introduced into the mould, without interfering with the release properties of the mould. A preferred embodiment involves treatment of contact lens casting moulds with corona discharge to provide improvements in the lens manufacturing procedure, as well as enhancement in the quality of the contact lenses themselves. The invention is particularly applicable to the production of contact lenses having a colored iris pattern imprinted thereon.

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San Jose, CA, United States of America

Ashok R Thakrar