Accommodating Intraocular Lens

Abstract

A deformable intracapsular implant device for shaping an enucleated lens capsule sac for use in cataract procedures and refractive lensectomy procedures. In one embodiment, the intraocular implant devices rely on thin film shape memory alloys and combine with the post-phaco capsular sac to provide a biomimetic complex that can mimic the energy-absorbing and energy-releasing characteristics of a young accommodative lens capsule. In another embodiment, the capsular shaping body is combined with an adaptive optic. The peripheral capsular shaping body carries at least one fluid-filled interior chamber that communicates with a space in a adaptive optic portion that has a deformable lens surface. The flexing of the peripheral shaping body in response to zonular tensioning and de-tensioning provides an inventive adaptive optics mechanism wherein fluid media flows between the respective chambers “adapts” the optic to increase and decrease the power thereof. In one embodiment, the capsular shaping body carries a posterior negative power adaptive optic that can be altered in power during accommodation to cooperate with an independent drop-in exchangeable intraocular lens.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of pending U.S. application Ser. No. 10 / 358,038, filed Feb. 3, 2003, titled “Intraocular Implant Devices”, which claims benefit under 35 U.S.C. §119(e) of Provisional Patent Application No. 60 / 353,847 filed Feb. 2, 2002 titled “Intraocular Lens and Method of Making”; and also claims benefit of the following other Provisional Patent Applications: No. 60 / 362,303 filed Mar. 6, 2002 titled “Intraocular Lens and Method of Making”; No. 60 / 378,600 filed May 7, 2002 titled “Intraocular Devices and Methods of Making”; No. 60 / 405,471 filed Aug. 23, 2002 titled “Intraocular Implant Devices and Methods of Making”, No. 60 / 408,019 filed Sep. 3, 2002 titled “Intraocular Lens”, and No. 60 / 431,110 filed Dec. 4, 2002 titled “Intraocular Implant Devices and Methods of Making”. All of the above applications are incorporated herein in their entirety by this reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention...

AI Technical Summary

Benefits of technology

[0018]Accordingly, a principal advantage of the present invention is the provision of deformable, rollable intraocular devices such as capsular shaping devices that utilize shape memory alloy forms, such shaping devices enabling an artificial lens system to provide accommodative amplitude (diopters of power modification).

[0019]The invention advantageously provides a capsular shaping element with integrated optics that require only a very small entry incision for implantation—for example a sub-1 mm. minimal incision through the cornea.

[0020]The invention advantageously provides an independent module comprising a capsular shaping structure of a thin film material that conforms to and maintains an intracapsular volume for receiving an IOL.

[0021]The invention provides a capsular shaping structure of a superelastic shape memory alloy form within a shape memory polymer envelope that conforms to and maintains an intracapsular volume.

[0022]The invention advantageously provides an independent module comprising a capsular shaping structure that can cooperate with drop-in fixed focus IOL or a drop-in accommodating IOL.

[0023]The invention advantageously provides an independent module comprising a capsular shaping element that allows for simplified lens exchange.

Problems solved by technology

Nickel titanium alloys are also known to be biocompatible.

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