Patents Assigned to Alcon Manufacturing, Ltd.
  • Patent number: 6589204
    Abstract: A surgical handpiece having two coaxial tubes or channels mounted within a body. The first tube is used for aspiration and is smaller in diameter than the second tube so as to great an annular passage between the first and second tube. The annular passage communicates with a pumping chamber formed between two electrodes. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the annular passage. The electrodes are insulated from each other.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: July 8, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Glenn Sussman, Martin J. Padget, Donald M. Cohen
  • Patent number: 6583124
    Abstract: The present invention is directed to ophthalmic compositions containing a gelling amount of a combination of galactomannan polysaccharides and borates. The compositions gel or partially gel upon administration to the eye. The present invention also discloses methods of topical ophthalmic administration of the compositions to the eye.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: June 24, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Bahram Asgharian
  • Patent number: 6579270
    Abstract: A surgical handpiece and tip having two coaxial tubes or channels mounted within a body. The first tube is used for aspiration and is smaller in diameter than the second tube so as to create an annular passage between the first and second tube. The annular passage communicates with a pumping chamber formed between two electrodes. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the annular passage. The distal end of the annular gap is sealed by a nozzle at the distal ends of the first and second tube and a plurality of orifices or ports may be formed in the nozzle. As the expanding gas is propelled down the annular gap, the gas/liquid stream is forced out of the distal orifice in a controlled and directed manner.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: June 17, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Glenn Sussman, Donald M. Cohen
  • Patent number: 6575929
    Abstract: A surgical handpiece having a tube used to inject heated surgical fluid for liquefying a cataractous lens. A portion of the tube is enlarged to form a pumping chamber. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the second tube. The pumping chamber may use a pair of electrodes. To control the expulsion of the fluid, valves are placed on either side of the boiling chamber.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 10, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Glenn Sussman, Martin J. Padget, Donald M. Cohen
  • Patent number: 6545045
    Abstract: This application relates to compositions and methods for the treatment of glaucoma and/or ocular hypertension in mammals utilizing prostaglandin E receptor agonists.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: April 8, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Peter G. Klimko, Najam A. Sharif, Brenda W. Griffin
  • Patent number: 6541572
    Abstract: Disclosed is a two-step method of making soft, high refractive index, acrylic ophthalmic device materials. In the first step, a copolymer containing pendant oxirane groups is formed by copolymerizing one or more aryl acrylic hydrophobic monomers with one or more compounds of the formula wherein X is H or CH3; and n is 1-4. In the second step, the copolymer containing pendant oxirane groups formed in the first step is reacted with a compound of the formula W—T—H wherein W is H, CH3(CH2)a, or Z(OCH2CH2)b; a is 0-3; b is 1-5; Z is H, or CH3(CH2)p; p is 0-3; and T is O, NH, S; provided that if T≠O, then W≠H.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: April 1, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Albert R. LeBoeuf
  • Patent number: 6531480
    Abstract: This invention relates to the topical ocular use of non-peptide bradykinin receptor antagonists for the treatment of human ocular pain, neovascularization, corneal haze, allergy and inflammatory diseases.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: March 11, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Najam A. Sharif
  • Patent number: 6531614
    Abstract: Methods of synthesizing 9-Halo-13,14-dihydroprostaglandins useful in the treatment of glaucoma and ocular hypertension are disclosed. Also disclosed are ophthalmic, pharmaceutical compositions comprising such prostaglandins.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: March 11, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Raymond E. Conrow
  • Patent number: 6509327
    Abstract: Ophthalmic, otic and nasal compositions containing a new class of antibiotics (e.g., moxifloxacin) are disclosed. The compositions preferably also contain one or more anti-inflammatory agents. The compositions may be utilized to treat ophthalmic, otic and nasal conditions by topically applying the compositions to the affected tissues. The compositions and methods of the invention are particularly useful in the treatment of acute otitis externa infections attributable to one or both of two newly identified Microbacterium species, Microbacterium otitidis and Microbacterium alconae.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: January 21, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Gerald Cagle, Robert L. Abshire, David W. Stroman, Celeste H. McLean, Linda L. Clark, John M. Yanni
  • Patent number: 6503497
    Abstract: Water-soluble borate-polyol complexes are useful as buffers and/or antimicrobials in aqueous ophthalmic compositions, including those containing polyvinyl alcohol. These compositions have greater antimicrobial activity than comparable compositions containing typical borate buffers and unexpectedly increase the antimicrobial efficacy of other antimicrobial agents when used in combination. In addition, use of the boratepolyol complexes avoids the incompatibility problem typically associated with the combination of borate buffer and polyvinyl alcohol; therefore, the compositions disclosed herein may also contain polyvinyl alcohol.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: January 7, 2003
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Masood Chowhan, Nissanke L. Dassanayake
  • Patent number: 6500831
    Abstract: This invention relates to the topical ocular use of non-peptide bradykinin receptor antagonists to treat glaucoma and ocular hypertension.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: December 31, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Najam A. Sharif
  • Patent number: 6495608
    Abstract: The present invention is directed to viscoelastic systems comprising a combination of a galactomannan polysaccharide containing composition and borate containing composition. The two compositions gel or partially gel upon combination. The present invention also discloses methods of using the systems during surgery and, in particular, eye surgery.
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: December 17, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Bahram Asgharian
  • Patent number: 6491661
    Abstract: An infusion control system having a flexible, collapsible infusion container. The container can be compressed between rollers or plate so at to pressurize the container. Such a system allows for rapid pressure response rates without the need of venting devices or air filtering. The may also include an irrigation flow sensor. The sensor may be placed in the control console or in the infusion handpiece. Irrigation flow measurements provided by the sensor allows the control system to vary irrigation pressure and/or flow, aspiration pressure and/or flow and power supplied to the handpiece more accurately than sensors that monitor aspiration flow.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: December 10, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Mikhail Boukhny, Michael D. Morgan, Gary P. Sorensen
  • Patent number: 6492417
    Abstract: Methods and compositions for the antagonism of FP receptor-mediated biological responses are disclosed.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: December 10, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Najam A. Sharif, Brenda W. Griffin
  • Patent number: 6491721
    Abstract: A method of selecting an intraocular lens material for toric lenses is disclosed. The method comprises determining the tack of the material.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: December 10, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Charles Freeman, Mutlu Karakelle, Michael J. Simpson
  • Patent number: 6486138
    Abstract: The present invention is directed to ophthalmic compositions containing a gelling amount of a combination of galactomannan polysaccharides and borates. The compositions gel or partially gel upon administration to the eye. The present invention also discloses methods of topical ophthalmic administration of the compositions to the eye.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: November 26, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Bahram Asgharian, Gerald Cagle, Mandar V. Shah, Kerry L. Markwardt
  • Patent number: 6486215
    Abstract: Contact lens care compositions for the treatment of hard contact lenses are disclosed. The compositions are useful for rinsing, cleaning, disinfecting and storing of hard contact lenses. The compositions contain an unique gelling system involving galactomannan polysaccharides and borates to allow for the conditioning of the lens when it is reinserted in the eye of the user. Methods of using these compositions are also disclosed.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: November 26, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Bahram Asgharian
  • Patent number: 6482230
    Abstract: A method for determining the propensity of an intraocular lens material to prevent posterior capsule opacification is disclosed. The method involves contacting a sample of an IOL material having the shape of an IOL optic with collagen to form a contact area, incubating the sample in a liquid composition comprising lens epithelial cells, determining whether lens epithelial cells grow on the collagen in the contact area.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: November 19, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventors: Kwan Chan, John W. Sheets, Jr., Mutlu Karakelle
  • Patent number: 6462080
    Abstract: The present invention relates to use of prostaglandin E receptor agonists and partial agonists to stimulate mucin secretion to treat dry eye, keratoconjunctivitis, Sjogren's syndrome and related ocular surface diseases.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: October 8, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Peter G. Klimko
  • Patent number: 6455318
    Abstract: A method for determining the propensity of an intraocular lens material to prevent posterior capsule opacification is disclosed. The method involves incubating replicate samples of an IOL material with collagen IV, washing off any loosely bound collagen IV. Following the washing step, one sample is counted to determine the amount of collagen IV that remains adhered to the IOL material. A second sample is further processed prior to counting by subjecting it to a desorption step and a further washing step.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: September 24, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Kwan Chan