Lens oil having a narrow molecular weight distribution for intraocular lens devices
AssigneeLensGen, Inc.
InventorThomas Silvestrini
Life of this patent
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Abstract
A silicone oil having a mean molecular weight average greater than about 20,000 Daltons, with no more than about 3% to about 4% of the total silicone oil by weight being comprised of components having a molecular weight less than about 15,000 Daltons. In some embodiments, the silicone oil is used in intraocular lens devices.
Claims20
A silicone oil having a mean molecular weight in a range from about 20,000 Daltons to about 400,000 Daltons, wherein no more than about 3% to about 4% of the total silicone oil by weight is comprised of components having a molecular weight less than about 15,000 Daltons, the total silicone oil by weight is comprised of components having a molecular weight greater than about 5,000 Daltons, wherein the silicone oil has a viscosity of about 15,000 mm2/s or greater at 25° C., and wherein the silicone oil comprises a co-polymer comprising diphenylsiloxane and dimethylsiloxane.
An intraocular lens (IOL) device, comprising:
- an anterior region;
- a posterior region;
- a cavity region defined between the anterior and posterior regions;
- and
- a fluid disposed in the cavity region, the fluid comprising a silicone oil having a mean molecular weight greater than about 20,000 Daltons, wherein no more than about 3% to about 4% of the total silicone oil by weight is comprised of components having a molecular weight less than about 15,000 Daltons.
An intraocular (IOL) device configured for implantation in a lens capsule of a patient's eye, the IOL device comprising:
- a silicone oil having a mean molecular weight greater than about 20,000 Daltons, wherein the silicone oil is purified such that no component thereof has a molecular weight less than about 5,000 Daltons, and
- a bulk polymeric material, wherein at least a portion of the bulk material is in physical contact with the silicone oil.
Dependencies are inferred from the claim text.