David J Mccanna

US Patent:

7282178, Oct 16, 2007

Filed:

May 30, 2006

Appl. No.:

11/442789

Inventors:

Joseph C. Salamone - Boca Raton FL, US
Roya Borazjani - Fairport NY, US
Vicki Barniak - Fairport NY, US
Robert Manchester - Lima NY, US
David McCanna - Pittsford NY, US

Assignee:

Bausch & Lomb Incorporated - Rochester NY

International Classification:

A61L 2/18
C11D 1/72
C11D 3/37
C11D 3/48
B08B 3/04

US Classification:

422 28, 510112, 510421, 510475, 510505, 134 42

Abstract:

This invention is directed to an aqueous composition and methods for clean lipid deposits on contact lenses. In particular, a combination of non-ionic surfactants, branched and/or straight poly(ethylene oxide-propylene oxide) (PEO-PPO) block copolymers having HLB value greater than or equal to 18, with an additional straight poly(ethylene oxide-propylene oxide) (PEO-PPO) block copolymers having HLB value less than or equal to 15, has been found to improve the lipid cleaning properties of an aqueous composition for contact lenses and prevent the overgrowth of harmful bacteria, yeast and molds without adversely affecting the comfort or safety in terms of the level of toxicity to eye tissue.

US Patent:

20060275173, Dec 7, 2006

Filed:

May 30, 2006

Appl. No.:

11/442793

Inventors:

Roya Borazjani - Fairport NY, US
Joseph Salamone - Boca Raton FL, US
Vicki Barniak - Fairport NY, US
Robert Manchester - Lima NY, US
David McCanna - Pittsford NY, US

International Classification:

A61L 2/18

US Classification:

422028000, 424070310

Abstract:

This invention is directed to a method of treating a silicone hydrogel lens to cleaning lipid deposits thereon. The method comprises administering to the contact lens a solution comprising a first straight chain polyether surfactant. The first straight chain polyether surfactant has an HLB value that is a minimum of about 18. The second straight chain polyether surfactant has an HLB value that is a minimum of about 12 and a maximum of about 18. The second surfactant is present in an amount effective to improve the ability to remove lipids from a silicone hydrogel lens.

US Patent:

20060276359, Dec 7, 2006

Filed:

May 30, 2006

Appl. No.:

11/442790

Inventors:

Roya Borazjani - Fairport NY, US
Joseph Salamone - Boca Raton FL, US
Vicki Barniak - Fairport NY, US
Robert Manchester - Lima NY, US
David McCanna - Pittsford NY, US

International Classification:

C11D 3/20

US Classification:

510161000

Abstract:

This invention is directed to an aqueous composition and methods for cleaning lipid deposits and/or prevention of lipid deposition on contact lenses. In particular, a combination of non-ionic surfactants, straight chain poly(ethylene oxide-propylene oxide-ethylene oxide) (PEO—PPO—PEO) block copolymers having HLB value greater than or equal to 18, with an additional straight chain poly(ethylene oxide-propylene oxide-ethylene oxide) (PEO—PPO—PEO) block copolymer having an HLB value less than or equal to 11, has been found to improve the lipid cleaning properties of an aqueous composition for contact lenses and prevent the overgrowth of harmful bacteria, yeast and molds without adversely affecting the comfort or safety in terms of the level of toxicity to eye tissue.

US Patent:

61535680, Nov 28, 2000

Filed:

Nov 12, 1998

Appl. No.:

9/190509

Inventors:

David J. McCanna - Rochester NY
Stephen E. Maier - Brockport NY
David J. Heiler - Avon NY
Susan P. Spooner - Penfield NY
Erning Xia - Penfield NY

International Classification:

F61K 31155
C11D 330
C11D 337

US Classification:

510112

Abstract:

The present invention is directed to an ophthalmically safe disinfecting solution for contact lenses comprising the combination of a polymeric biguanide and a polyquaternium polymer of a substituted or unsubstituted vinylimidazole or its vinylimidazoliuum salt, which copolymer has a weight average molecular weight of 5,000 to 5,000,000. The invention is also directed to an improved method of disinfecting a contact lens.