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Valdemar Portney8 Via Ambra, Newport Beach, CA 92657

Valdemar Portney Phones & Addresses

8 Via Ambra, Newport Coast, CA 92657   

11940 Riviera, Tustin, CA 92782    714-7310818    714-7317713    714-7317716   

Work

Position: Food Preparation and Serving Related Occupations

Education

Degree: Associate degree or higher

Mentions for Valdemar Portney

Publications & IP owners

Us Patents

Iris Fixated Intraocular Lens And Instrument For Attaching Same To An Iris

US Patent:
6342058, Jan 29, 2002
Filed:
Jan 21, 2000
Appl. No.:
09/489069
Inventors:
Valdemar Portney - Tustin CA, 92782
International Classification:
A61F 900
US Classification:
606107
Abstract:
An iris fixated intraocular lens for implanting in the anterior chamber of an eye comprises an optic having an optical axis and anterior and posterior sides; and first and second fixation members, each of the fixation members having a proximal end region and a distal end region. The proximal end region of each fixation member is a single flexible strand fixed to an edge region of the optic to extend generally tangentially outwardly therefrom and the distal end region is formed into a loop having defined therein at least one narrow iris pincher gap for detachably attaching the intraocular lens to the anterior surface of the iris. The first and second fixation members are substantially identical to one another and are attached to the optic on opposite sides of the optical axis. The optic is preferably constructed from an elastically deformable plastic material, such as silicone or an acrylic, so that the resulting three-piece intraocular lens can be folded or otherwise deformed for implanting into an eye through a small, preferably sutureless, surgical incision. Variation IOLs are disclosed, such variations relating to iris pincer gaps.

Multifocal Ophthalmic Lens

US Patent:
6409340, Jun 25, 2002
Filed:
Nov 27, 2000
Appl. No.:
09/722918
Inventors:
Valdemar Portney - Tustin CA, 92782
International Classification:
G02C 704
US Classification:
351161, 351177
Abstract:
An improved opthalmic lens is disclosed which has a plurality of alternating power zones with a continuously varying power within each zone, as well as in transition from one zone to another. In other words, a plurality of concentric zones (at least two) are provided in which the variation from far to near vision correction is continuous, i. e. , from near correction focal power to far correction focal power, then back to near, and again back to far, or vice versa. This change is continuous (progressive), without any abrupt correction changes, or âedgesâ. Two versions of the invention are disclosed. In the first version continuous, alternating power variation is accomplished by a continuously changing curvature of the lens posterior surface, thereby altering the angle of impact of light rays on the eye. In the second version continuous, alternating power variation is accomplished by creating non-homogeneous surface characteristics having refractive material indexes which continuously vary in the lens radial direction (out from the optical axis).

Intraocular Lens Implanting Instrument

US Patent:
6428545, Aug 6, 2002
Filed:
Jul 28, 2001
Appl. No.:
09/917467
Inventors:
Valdemar Portney - Tustin CA
Assignee:
Allergan Sales, INC - Irvine CA
International Classification:
A61F 900
US Classification:
606107, 623 612
Abstract:
An instrument for implanting an elastically foldable intraocular lens in an eye is described. The instrument comprises a barrel having proximal and distal ends and a nozzle having a slender ocular insertion end region sized for insertion through an ocular incision no greater than about 3. 7 mm. , the nozzle being attached to the distal end of the nozzle. The barrel includes an intraocular lens holding chamber upstream of the nozzle. First and second shield elements are disposed inside along opposite side regions of the nozzle, each of the shield elements having an elastically deformable protective shield region disposed in the nozzle in an elastically deformed state. A mechanism is described for enabling the sequential pushing of the protective shield regions axially out of the nozzle insertion end region for expanding into their undeformed shape, the pushing of an elastically deformed intraocular lens axially out of the nozzle insertion end region for expanding into its undeformed state between the protective shield regions, and the pulling of the protective shield regions back into the nozzle insertion end region. The protective shield regions are generally paddle-shaped having a thickness of about 0. 15 mm in their undeformed state and at least one of the protective shield regions having a width of about 5 mm in an undeformed state.

Multifocal Ophthalmic Lens With Reduced Halo Size

US Patent:
6435681, Aug 20, 2002
Filed:
Jan 11, 2001
Appl. No.:
09/758850
Inventors:
Valdemar Portney - Tustin CA, 92782
International Classification:
G02C 704
US Classification:
351161, 623 627
Abstract:
Ophthalmic lenses, for example, intraocular lenses, contact lenses, corneal implant lenses and the like, have multifocal characteristics which provide beneficial reductions in at least the perception of one or more night time visual symptoms such as âhalosâ, and âglare or flareâ.

Primary And Supplemental Intraocular Lens System

US Patent:
6454801, Sep 24, 2002
Filed:
May 1, 2000
Appl. No.:
09/562405
Inventors:
Valdemar Portney - Tustin CA
Assignee:
Allergan - Waco TX
International Classification:
A61F 216
US Classification:
623 634, 623 632
Abstract:
A supplemental intraocular lenses may be attached to conventional primary intraocular lenses using annular wrap-around clamps or adhesive. New primary intraocular lens configurations have pockets for accommodating relatively small, supplemental intraocular lenses therein.

Instrument For Folding And Inserting Anterior Chamber Intraocular Lenses

US Patent:
6500181, Dec 31, 2002
Filed:
Oct 17, 2000
Appl. No.:
09/690783
Inventors:
Valdemar Portney - Tustin CA, 92782
International Classification:
A61F 900
US Classification:
606107, 623 612
Abstract:
There is described an instrument for double folding an elastically deformable intraocular lens (IOL) into a general C-shape for insertion through a small incision into the anterior chamber of a patients eye for controlled unfolding. The instrument comprises an elongate, slender IOL insertion tube having an IOL receiving station located in the tube adjacent a cutaway opening. A support element is provided for holding a central optic region of an IOL received in the IOL receiving station against an inner surface of the tube during the double folding of the IOL. An IOL double folding member installed on the tube has a converging recess facing the IOL receiving station, the recess being along the longitudinal tube axis and having an IOL discharge opening facing the insertion tube distal end. In one version, the IOL double folding member is moved along the insertion tube to cause double folding of the IOL held in the IOL receiving station; in another version, the IOL is moved through the insertion tube into the double folding member that is fixed to the tube. A disposal IOL insertion tip is attached at the distal end of the insertion tube and is sized for passing through an ocular incision no greater than about 3. 2 mm.

Accommodating Multifocal Intraocular Lens

US Patent:
6503276, Jan 7, 2003
Filed:
Mar 30, 2001
Appl. No.:
09/822040
Inventors:
Alan I. Lang - Long Beach CA
Valdemar Portney - Tustin CA
Stephen W. Laguette - Santa Barbara CA
Assignee:
Advanced Medical Optics - Santa Ana CA
International Classification:
A61F 216
US Classification:
623 637, 623 627, 623 628, 623 639
Abstract:
Intraocular lenses include a lens body sized and adapted for placement in a mammalian eye and having a plurality of different optical powers, and a movement assembly joined to the lens body and adapted to cooperate with the mammalian eye to effect accommodating movement of the lens body in the eye. Such intraocular lenses provide enhanced accommodation relative to the accommodation attainable using a single optical power IOL adapted for accommodating movement.

Multifocal Ophthalmic Lens

US Patent:
6527389, Mar 4, 2003
Filed:
Mar 22, 2002
Appl. No.:
10/104613
Inventors:
Valdemar Portney - Tustin CA
Assignee:
Advanced Medical Optics, Inc. - Santa Ana CA
International Classification:
G02C 704
US Classification:
351161, 351177, 623 627, 623 628
Abstract:
An improved ophthalmic lens is disclosed which has a plurality of alternating power zones with a continuously varying power within each zone, as well as in transition from one zone to another. In other words, a plurality of concentric zones (at least two) are provided in which the variation from far to near vision correction is continuous, i. e. , from near correction focal power to far correction focal power, then back to near, and again back to far, or vice versa. This change is continuous (progressive), without any abrupt correction changes, or âedgesâ. Two versions of the invention are disclosed. In the first version continuous, alternating power variation is accomplished by a continuously changing curvature of the lens posterior surface, thereby altering the angle of impact of light rays on the eye. In the second version continuous, alternating power variation is accomplished by creating non-homogeneous surface characteristics having refractive material indexes which continuously vary in the lens radial direction (out from the optical axis).

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