Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1990-12-27
1993-06-08
Frinks, Ronald
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
264 17, 351160R, 351160H, 351162, 351177, A61F 216, B29D 1100
Patent
active
052174913
ABSTRACT:
A one-piece bicomposite intraocular lens having a soft foldable central optic portion and a hard, stiff haptic portion made from two dissimilar polymeric materials wherein the soft polymeric material is soft enough to fold into a smaller dimension for insertion through a surgical incision which is smaller than the diameter of the optic portion and the second hard polymeric haptic material provides a stiffness sufficient to properly hold the intraocular lens in place within a patient's eye. The hard polymeric haptic material is joined to the outermost peripheral surface of the soft central optic material by means of an interpenetrating polymer network to form a one-piece bicomposite intraocular lens, In an alternative embodiment the stiff haptic portion has a further soft material at its terminus to protect the eye tissues at the point of contact without sacrificing the lens positioning properties of stiff haptics.
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American Cyanamid Company
Calnan William H.
Frinks Ronald
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