Patents by Inventor Traian V Chirila

Traian V Chirila has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of insertion of keratoprostheses
    Publication number: 20030055497
    Abstract: Disclosed are improved methods of insertion of keratoprosthesis and, in particular, improved methods of surgical insertion and placement of a soft hydrogel prosthetic corneal device into the host cornea. The methods of the invention provide greatly improved rates of success for the implantation and retention of the device.
    Type: Application
    Filed: July 23, 2002
    Publication date: March 20, 2003
    Applicant: The Lions Instutute of Western Australia Incorporated
    Inventors: Celia R. Hicks, Geoffrey J. Crawford, Traian V. Chirila, Ian J. Constable
  • Method of improved keratoprosthesis
    Publication number: 20030033010
    Abstract: The invention relates to an improved keratoprosthesis comprising a keratoprosthesis prepared with such properties and radii that when implanted into a patient it assumes the optic radii of curvature for a desirable refractive outcome.
    Type: Application
    Filed: June 12, 2002
    Publication date: February 13, 2003
    Inventors: Celia R. Hicks, Traian V. Chirila, Geoffrey J. Crawford, Xia Lou
  • Method of insertion of keratoprostheses
    Patent number: 6423093
    Abstract: Disclosed is a method of insertion of keratoprostheses, and in particular, a method of surgical insertion and placement of a soft hydrogel prosthetic corneal device into the host cornea. The method of the invention provides a greatly improved rate of success for the implantation and retention of the device.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: July 23, 2002
    Assignee: The Lions Eye Institute of Western Australia Incorporated
    Inventors: Celia R Hicks, Geoffrey J Crawford, Traian V Chirila, Ian J Constable
  • Method of producing a keratoprosthesis
    Patent number: 5458819
    Abstract: A composite device which may be implanted in the cornea of the human eye to replace damaged or diseased portions, and a method of manufacturing the said device, are disclosed. The device consists of a transparent central portion intimately attached to an opaque spongy rim. Both portions are made of hydrogel materials produced in different conditions of polymerization during a two-stage process performed in a specific moulding unit. The spongy rim promotes and maintains cellular invasion from the host corneal tissue, thus providing a tight union between implant and recipient cornea which prevents the postoperative extrusion of the implant.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: October 17, 1995
    Assignee: Lions Eye Institute of Western Australia, Incorporated
    Inventors: Traian V. Chirila, Ian J. Constable, Geoffrey J. Crawford, Albert V. Russo
  • Keratoprosthesis
    Patent number: 5300116
    Abstract: A composite device which may be implanted in the cornea of the human eye to replace damaged or diseased portions, and a method of manufacturing the said device, are disclosed. The device consists of a transparent central portion intimately attached to an opaque spongy rim. Both portions are made of hydrogel materials produced in different conditions of polymerization during a two-stage process performed in a specific moulding unit. The spongy rim promotes and maintains cellular invasion from the host corneal tissue, thus providing a tight union between implant and recipient cornea which prevents the postoperative extrusion of the implant.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: April 5, 1994
    Assignee: Lions Eye Institute of Western Australia
    Inventors: Traian V. Chirila, Ian J. Constable, Geoffrey J. Crawford, Albert V. Russo
  • Method of making photoprotective hydrophilic polymers and ocular devices thereof
    Patent number: 5252628
    Abstract: A method of making pigmented hydrophilic polymers in such a manner that the resulting polymers absorb ultraviolet and visible radiation, and that no migration, separation or leaching of the pigment can take place, is disclosed. The polymer compositions comprise blends of hydrophilic polymers with melanin pigments, the latter being synthesized on the hydrophilic polymer matrix. The disclosed polymer compositions are useful in the manufacture of ocular devices, particularly intraocular lenses and aphakic contact lenses capable of absorbing ultraviolet and visible radiation, at wavelengths between 300 and 700 nanometers, to the same extent as the natural crystalline lens of the eye. The disclosed method is also useful to impart photoprotective properties to the already made said ocular devices.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: October 12, 1993
    Assignee: Lions Eye Institute of Western Australia, Inc.
    Inventors: Traian V. Chirila, Ian J. Constable, Richard L. Cooper