Methods for implantation of deformable intraocular lenses
March 4, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3034403 3760045 Posterior chamber artificial intraocular lens with retaining means and instruments for use therewith High toughness synthetic high polymers for soft contact lenses and a process for manufacturing the same Intraocular lens for implantation into the posterior chamber of a human eye Polyurethane elastomer for heart assist devices Polysiloxane composition and contact lens Artificial implant lens Intraocular lens device Collagen reconstitution InventorAssigneeApplicationNo. 06/346105 filed on 02/05/1982US Classes:128/898, Methods606/107, Means for removing, inserting or aiding in the removal or insertion of eye lens material606/138, Means for removing suture, clip, staple or ligature623/6.36, One lens is natural crystalline lens623/6.4, Surrounding optic623/907Method of manipulating parts of intraocular lens structure for implantationExaminersPrimary: Frinks, Ronald L.Attorney, Agent or FirmInternational ClassA61F 2/16 (20060101)AbstractThe invention provides an improved intraocular lens structure comprising a deformable optical zone portion with prescribed memory characteristics and methods and devices for implantation of such lens in the eye. The unique optical zone portion of the lens can be deformed by compressing, rolling, folding, stretching, or can be deformed by a combination of these techniques to temporarily reduce the optical zone portion to a diameter of about 80% or less of the cross-sectional diameter of the optical zone portion in an unstressed state. After insertion into the eye, the optical zone portion returns to its original configuration, full size and fixed focal length. The inventive methods and devices for implantation permit insertion of the improved lens through a relatively small incision made in the ocular tissue, thereby providing a safer, more convenient surgical procedure and more comfortable fit for the eye. | |
