Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1989-12-27
1992-10-06
Sugarman, Scott J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
156 731, 359565, 604294, A61F 216, B32B 3116, G02B 518, A61M 3500
Patent
active
051527880
ABSTRACT:
A multifocal ophthalmic lens includes first and second lens members. Each lens member has a smooth outer surface and an inner surface with an edge about its perimeter. A multifocal diffractive zone plate on at least one of the lens members is characterized by an index of refraction. The lens members are joined at the edges by ultrasonic welding to form a cavity adjacent the diffractive zone plate. The cavity is filled with a liquid medication having an index of refraction which is different than the index of refraction of the diffractive zone plate. A hole through one of the lens members functions as a fluid transport mechanism to permit transfer of the medication between the cavity and eye.
REFERENCES:
patent: 3630200 (1971-12-01), Higuchi
patent: 4210391 (1990-07-01), Cohen
patent: 4338005 (1982-07-01), Cohen
patent: 4340283 (1982-07-01), Cohen
patent: 4575372 (1986-03-01), Gundersen
patent: 4618649 (1986-10-01), Ofstead
patent: 4637697 (1987-01-01), Freeman
patent: 4641934 (1987-02-01), Freeman
patent: 4642112 (1987-02-01), Freeman
patent: 4655565 (1987-04-01), Freeman
patent: 4664666 (1987-05-01), Barrett
patent: 4685921 (1987-08-01), Peyman
patent: 4685922 (1987-08-01), Peyman
patent: 4693939 (1987-09-01), Ofstead
patent: 4702865 (1987-10-01), Koziol et al.
patent: 4704016 (1987-11-01), de Carle
patent: 4731078 (1988-03-01), Stoy et al.
patent: 4771089 (1988-09-01), Ofstead
patent: 4828558 (1989-05-01), Kelman
patent: 4846833 (1989-07-01), Cumming
O. Wichterle, "Hydrogels," Encyclopedia of Polymer Science and Technology, vol. 15, 1971, pp. 273-291.
Wichterle et al., "Hydrophilic Gels for Biological Use," Nature, 185:117-118, 1960.
Ratner et al., "Synthetic Hydrogels for Biomedical Applications," Hydrogels for Medical and Related Applications, Am. Chem. Soc., Wash, D.C., 1976, pp. 1-35.
R. A. Clarke, "Ultrasonic Assembly," Modern Plastics Encyclopedia, 1980-81, pp. 447-451.
Jordan et al., "Kinoform Lenses," Aug. 1970, Applied Optics, pp. 1883-1887.
Futhey John A.
Ihn Paul T.
Isaacson William B.
Thompson Kent D.
Griswold Gary L.
Kirn Walter N.
Linder Walter C.
Minnesota Mining and Manufacturing Company
Sugarman Scott J.
LandOfFree
Multifocal diffractive ophthalmic lens and method of manufacture does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multifocal diffractive ophthalmic lens and method of manufacture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multifocal diffractive ophthalmic lens and method of manufacture will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1186401