James K Cumming

US Patent:

8523942, Sep 3, 2013

Filed:

May 15, 2012

Appl. No.:

13/472354

Inventors:

James Stuart Cumming - Laguna Beach CA, US

International Classification:

A61F 2/16

US Classification:

623 646, 623 637, 623 644

Abstract:

A variable focus intraocular lens comprises an optic coupled to at least one haptic at a flexion that sets a non-zero angle between the optic and the haptic.

US Patent:

20110313519, Dec 22, 2011

Filed:

Jan 31, 2011

Appl. No.:

13/017189

Inventors:

James Stuart Cumming - Laguna Beach CA, US

International Classification:

A61F 2/16

US Classification:

623 637

Abstract:

An intraocular lens for insertion into a capsular bag of an eye comprises: an optic; and at least one plate haptic coupled to the optic by one or more flexible connecting members. The plate haptic with flexible finger extensions is designed to engage the periphery of the capsular bag. An increase in radial pressure upon constriction of the ciliary muscle causes the rigid posteriorly vaulted plate haptics to move centrally to further increase the vitreous cavity pressure with constriction of the ciliary muscle: the optic with its thin stretchable hinge across the connecting member is then displaced anteriorly along the axis of the eye. The haptic includes a longitudinally rigid frame to restrict deformation of the haptic in a longitudinal direction while permitting deformation in a transverse direction. Furthermore, the flexible connecting members include one or more hinged straps that extend radially and/or longitudinally from the optic. The optic can move forwards and backwards, relative to both the distal and proximal ends of the plate haptics, in response to ciliary muscle contraction and relaxation with an increase and decrease of vitreous cavity pressure. Finger-like projection extends from the plate haptic to engage the capsular bag to center and fixate the accommodating lens within the capsular bag.

US Patent:

20110313524, Dec 22, 2011

Filed:

Apr 22, 2011

Appl. No.:

13/092359

Inventors:

James Stuart Cumming - Laguna Beach CA, US

International Classification:

A61F 2/16

US Classification:

623 644

Abstract:

A plate haptic is used with an intraocular lens optic displaceable in response to vitreous pressure changes. The plate haptic comprises: a plurality of opposing lateral portions; a distal portion having a plurality of opposing projections extending substantially laterally therefrom; and a proximal portion comprising a strap across which is a hinge connecting the lens optic to the haptic. The intersection of the proximal portion with each lateral portion forms a plurality of appendages, or paddles, to partially surround the optic. The appendages, projections, and hinged straps combine to substantially aid displacement of the lens optic in response to changes in vitreous pressure.

US Patent:

20110313525, Dec 22, 2011

Filed:

May 19, 2011

Appl. No.:

13/111599

Inventors:

James Stuart Cumming - Laguna Beach CA, US

International Classification:

A61F 2/16

US Classification:

623 644

Abstract:

An intraocular lens for insertion into a capsular bag of an eye. A plurality of flexible connecting members couples a lens optic to a pair of opposing of plate haptics. The coupling members stabilize the optic with respect to the haptics. The coupling members are spaced apart straps having grooves that increase lens response to changes in vitreous pressure.

US Patent:

20110313526, Dec 22, 2011

Filed:

Jun 7, 2011

Appl. No.:

13/155327

Inventors:

James Stuart Cumming - Laguna Beach CA, US

International Classification:

A61F 2/16

US Classification:

623 644

Abstract:

A plate haptic for an accommodating intraocular lens. The plate haptic has a haptic body that is substantially rigid in a longitudinal direction and substantially flexible in a transverse direction. A chassis is integral to the haptic body. The chassis causes the haptic body to be substantially more rigid in a longitudinal direction than in a transverse direction.

US Patent:

20120310344, Dec 6, 2012

Filed:

May 16, 2012

Appl. No.:

13/472893

Inventors:

James Stuart Cumming - Laguna Beach CA, US

International Classification:

A61F 2/16

US Classification:

623 644, 623 646

Abstract:

An accommodating intraocular lens has a lens optic that is coupled to at least one haptic and is anteriorly biased with respect thereto.

US Patent:

20170252148, Sep 7, 2017

Filed:

Feb 24, 2017

Appl. No.:

15/442508

Inventors:

James Stuart Cumming - Laguna Beach CA, US

International Classification:

A61F 2/14
A61F 2/16

Abstract:

An intraocular lens comprises a flexible optic and at least one haptic connected to the optic. The at least one haptic comprises a rigid structure.

US Patent:

20160262870, Sep 15, 2016

Filed:

Mar 28, 2016

Appl. No.:

15/082934

Inventors:

James Stuart Cumming - Laguna Beach CA, US

International Classification:

A61F 2/16

Abstract:

An intraocular lens with an anterior ridge designed to provide a space in front of the lens optic.