Patents by Inventor Michael Colvard

Michael Colvard 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).

  • Publication number: 20210186754
    Abstract: Disclosed are systems, devices, and methods of gonioprism docking with ocular surfaces using vacuum seals for improved conditions during medical procedures on ocular surfaces.
    Type: Application
    Filed: May 25, 2018
    Publication date: June 24, 2021
    Inventors: David Michael Colvard, Bibianna A. Cha, Kurt Faulhaber, Robert Raney
  • Patent number: 8439833
    Abstract: A ring for dilating a pupil during an ophthalmic procedure includes a series of spaced supports for engaging an iris perimeter. The supports are plate elements which form an open pocket directed outwardly for engaging the iris. The sides of the ring form a primary plane, and the plates are located in respective planes above and below the primary plane. The outer periphery of the top and bottom plates forms a lip feature which is the opening to the pocket which retains the iris.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: May 14, 2013
    Assignee: Oasis Medical, Inc.
    Inventors: James Marlow Christensen, D. Michael Colvard
  • Publication number: 20130096386
    Abstract: A ring for dilating a pupil during an ophthalmic procedure includes a series of spaced supports for engaging an iris perimeter. The supports are plate elements which form an open pocket directed outwardly for engaging the iris. The sides of the ring form a primary plane, and the plates are located in respective planes above and below the primary plane. The outer periphery of the top and bottom plates forms a lip feature which is the opening to the pocket which retains the iris.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 18, 2013
    Applicant: OASIS Medical, Inc.
    Inventors: James Marlow Christensen, D. Michael Colvard
  • Publication number: 20070083260
    Abstract: A device for maintaining the normal depth of a posterior chamber of the eye. One or more spacers are implantation in the lens capsule of a patient at a position anterior to an implanted posterior intraocular lens following removal of the natural crystalline lens. The spacer or at least one spacer has an outer diameter approximating the diameter of the lens capsule prior to removal of the crystalline lens. The one or more spacers in combination with the intraocular lens produce a depth for the lens capsule approximating the depth of the lens capsule prior to removal of said crystalline lens. The one or more spacers may be configured to prevent epithelial cell migration.
    Type: Application
    Filed: October 7, 2005
    Publication date: April 12, 2007
    Inventor: Michael Colvard
  • Publication number: 20060159651
    Abstract: A viscoelectric solution for use in a cataract removal and IOL insertion procedure comprises, in a single applicator, a liquid composition of a solution of a compound which has a range of molecular weights from about 500,000 to about 3,800,000 daltons. The applicator is filled with the compound arranged so that predominately lower molecular weight material is first delivered, higher molecular weight material is last delivered and there exists an increasing continuum of molecular weight material there between for delivery during the surgical procedure.
    Type: Application
    Filed: January 14, 2005
    Publication date: July 20, 2006
    Inventor: Michael Colvard
  • Patent number: 6241721
    Abstract: A laser and a laser probe are used in conjunction with a suture to remove a blockage in Schlemm's canal. The suture is advanced into Schlemm's canal until the suture comes into contact with tissue blocking the canal. The laser probe follows the path of suture until the laser probe is proximal to tissue blocking the canal. The laser is activated to apply pulsed laser energy to the tissue blocking the canal, thereby ablating the occluding tissue to reopen Schlemm's canal.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: June 5, 2001
    Inventors: Colette Cozean, Michael Colvard, Robert C. Allen, Edwin U. Keates
  • Patent number: 5865831
    Abstract: A laser is used to reopen the natural drainage passageways in the eye or to form new passageways to enable the drainage of the aqueous humor from the eye. In one procedure, an Er:YAG laser is used to ablate occluding tissue in Schlemm's canal. In another procedure, the Er:YAG laser is used to open occluded openings in the ciliary body. In yet another procedure, the Er:YAG laser is used to form a new passageway comprising a plurality of interconnected passageway segments from the exterior of the eye through the sclera to the anterior chamber to enable the drainage of the aqueous humor.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: February 2, 1999
    Assignee: Premier Laser Systems, Inc.
    Inventors: Colette Cozean, Michael Colvard, Robert C. Allen, Edwin U. Keates
  • Patent number: 5738677
    Abstract: An optical probe configured for insertion into the anterior chamber of an eye, adjacent to the cataractous lens of the eye, comprises an optical source, and an optical waveguide connected to deliver optical radiation from the source to the probe. The optical radiation is in the form of pulses which have a repetition rate, a wavelength and an optical energy selected to cause significant ablation-induced damage to the lens within an ablation zone, and significant acoustic-induced damage to the lens within an acoustic zone, such that the acoustic zone is significantly larger in size than the ablation zone. The acoustic zone is created by generating shock waves which radiate from the ablation zone and propagate through hard nuclear material of the cataractous lens, such that the nuclear material is microfractured.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: April 14, 1998
    Assignee: Premier Laser Systems, Inc.
    Inventors: Michael Colvard, Varouj D. Amirkhanian, HeeJung Koh Wescoat, Judy E. Mazza, Colette Cozean
  • Patent number: 5722970
    Abstract: Procedures using a laser surgical probe are disclosed in which laser energy can be directed at an angle relative to the longitudinal axis of the probe. In a preferred procedure, the laser probe is inserted into an internal portion of a mammal with a laser light beam being directed into the probe along a longitudinal axis. A reflecting surface on the probe reflects the laser light beam so that the beam exits the probe at an angle relative to the longitudinal axis, thereby directing the laser light onto tissue of the mammal. The tissue contacted by laser light can be viewed during the procedure by looking through the reflecting surface. A particularly preferred procedure comprises an anterior capsulotomy.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: March 3, 1998
    Assignee: Premier Laser Systems, Inc.
    Inventors: D. Michael Colvard, Colette Cozean, Varouj D. Amirkhanian
  • Patent number: 5676669
    Abstract: An apparatus and method including a capsular shield for use in cataract surgery for protection of a posterior lens capsule during removal of a capsule nucleus. The shield includes a flexible, deformable soft shield having an outer configuration of a size and shape to fit within the lens capsule at a position between the nucleus and the posterior capsule to protect the posterior capsule during removal of the capsule nucleus.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: October 14, 1997
    Inventor: Michael Colvard
  • Patent number: 4748749
    Abstract: The present invention provides an improved retractable walking over-boot/ski gaiter combination which is particularly useful for ski lodgewear and for downhill skiing. In one embodied form the unique combination comprises a soft detachable elastic inner sock which is secured to a flexible retractable over-boot having a gaiter top portion. The juncture between a top portion of the inner sock and over-boot is contoured to wrap tightly around a wearer's leg in the region between the ankle and knee. Preferably, the inner sock is fabricated from an elastic woven or knitted material and the over-boot is fabricated from a relatively soft, water repellent material such as polyurethane. In a distended position, the over-boot provides flexible and comfortable foot-gear for the skier for indoor and outdoor walking prior to reaching the desired terrain for skiing.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: June 7, 1988
    Inventor: Michael Colvard
  • Patent number: D686729
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: July 23, 2013
    Assignee: Oasis Medical, Inc.
    Inventors: James Marlow Christensen, D. Michael Colvard
  • Patent number: D736927
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: August 18, 2015
    Assignee: Oasis Medical, Inc.
    Inventors: James Marlow Christensen, D. Michael Colvard
  • Patent number: D739021
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: September 15, 2015
    Assignee: OASIS MEDICAL, INC.
    Inventors: James Marlow Christensen, D. Michael Colvard