US 6,786,928 B2Granted

Small incision lens

AssigneeThinOptX, Inc.

InventorsWayne B. Callahan, Jeffery S. Callahan

Life of this patent

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Abstract

This patent represents a deformable artificial intraocular lens for implantation into the human eye. The lens is used for implantation after cataract surgery. The lens optic consists of one smooth optical surface. The second optical surface is a series of annular concentric rings. The rings allow the lens to have extremely thin edges, which reduce glare, halos, and distortion. The extremely thin lens optic along with the thin haptic can be rolled, folded, or squeezed to pass through a small incision (<1.5 millimeters) in the cornea or sclera of the human eye. This lens represents a breakthrough in removal of mass from the lens. The ultra thin lens and haptic design allows the lens to move in the eye providing accommodation for the patient. The lens and haptic design reduces the radial forces on the eye to the point where the naturally occurring pressures in the eye move the lens thus providing accommodation. In all current lens designs the haptics apply enough radial force to prevent the natural forces in the eye from moving the lens. The ultra thin lens and haptic design allows the lens to move in the eye providing accommodation for the patient.

Claims34

Dependent claims

An intraocular Lens, comprising:

an optical portion having a first optical surface, wherein the optical portion is constructed of a material which is biologically compatible with a tissue of an eye, the optical portion having a predetermined maximum thickness under which the material may be rolled without exceeding the elastic limit of the material, said optical portion having a predetermined minimum thickness above which the material retains a normal shape, wherein the intraocular lens is capable of deforming for passage through an incision having a length smaller than about 1.5 millimeters so that the intraocular lens is placed into the eye;
the optical portion having a second optical surface, wherein the second optical surface comprises a central disk which is radially surrounded by a series of annular rings, the central disk and the series of annular rings forming a series of radial steps along the second optical surface so that a focal length from an annular ring is adjusted to focus at a same point as a prime meridian of the lens, wherein the second optical surface and the first optical surface have a minimum separation of 0.025 mm and a maximum separation of 0.45 mm;
and
an anchoring portion attached to the optical portion, wherein the anchoring portion is constructed of a material, which is biologically compatible with a tissue of an eye, wherein the anchoring portion is capable of biasing against a support structure of the eye.

1 more element

An intraocular lens, comprising:

an optical portion having a first optical surface, wherein the first optical surface is of a predetermined convexity for obtaining a particular focusing power, wherein the optical portion is constructed of a material which is biologically compatible with a tissue of an eye, the optical portion having a predetermined maximum thickness under which the material may be rolled without exceeding the elastic limit of the material, said optical portion having a predetermined minimum thickness above which the material retains a normal shape, wherein the intraocular lens is capable of deforming for passage through an incision having a length smaller than about 1.5 millimeters so that the intraocular lens is placed into the eye;
the optical portion having a second optical surface, wherein the second optical surface comprises a central disk which is radially surrounded by a series of annular rings, the central disk and the series of annular rings forming a series of radial steps along the second optical surface so that a focal length from an annular ring is adjusted to focus at a same point as a prime meridian of the lens, each annular ring having an outer surface, wherein the central disk is of a predetermined convexity for obtaining a particular focusing power, wherein the second optical surface and the first optical surface have a minimum separation of 0.025 mm and a maximum separation of 0.065 mm;
and
an anchoring portion having a thickness of about 10 microns to about 100 microns attached to the optical portion, wherein the anchoring portion is constructed of a material which is biologically compatible with a tissue of an eye, wherein the anchoring portion is capable of biasing against a support structure of the eye.

1 more element

An intraocular lens, comprising:

an optical portion having a first optical surface, wherein the optical portion is constructed of a material which is biologically compatible with a tissue of an eye, wherein the optical portion is constructed of a material having an index of refraction from about 1.4 to about 2.0, wherein the first optical surface is of a predetermined concavity for obtaining a particular focusing power, the optical portion having a predetermined maximum thickness under which the material may be rolled without exceeding the elastic limit of the material, said optical portion having a predetermined minimum thickness above which the material retains a normal shape, wherein the intraocular lens is capable of deforming for passage through an incision having a length smaller than about 1.5 millimeters so that the intraocular lens is placed into the eye;
the optical portion having a second optical surface, wherein the second optical surface comprises a central disk which is radially surrounded by a series of annular rings, the central disk and the series of annular rings forming a series of radial steps along the second optical surface so that a focal length from an annular ring is adjusted to focus at a same point as a prime meridian of the lens, each annular ring having an outer surface, wherein the second optical surface and the first optical surface have a minimum separation of 0.025 mm and a maximum separation of 0.065 mm;
and
an anchoring portion having a maximum thickness of 100 microns attached to the optical portion, wherein the anchoring portion is constructed of a material which is biologically compatible with a tissue of an eye, wherein the anchoring portion is capable of biasing against a support structure of the eye.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 10/195,953Filed 16 Jul 2002 · continuation in part
Priority: 20 Aug 1997
Published: US 2003/0065387 A13 Apr 2003
Granted: 7 Sep 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

A61F 2/1613
Intraocular lenses: having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative…
A61F 2/00
Filters implantable into blood vessels
A61F
Filters implantable into blood vessels

Family

Application08/914,767Parent of this division · filed 20 Aug 1997
Application09/441,425Parent of this continuation-in-part · filed 16 Nov 1999
Application60/305,811Us provisional application · filed 17 Jul 2001
Application60/344,615Us provisional application · filed 31 Dec 2001
Application60/385,006Us provisional application · filed 31 May 2002
US 2003/0065387 A1Pre-grant publication · published 3 Apr 2003
US 6,488,707 B1Parent of this continuation-in-part
Application09/441,425Parent of this division
US 6,096,077 AParent of this division
US 6,786,928 B2This patent

From the US filing history. Foreign family members aren’t listed.