Patents by Inventor Nadhir B. Kosa

Nadhir B. Kosa 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).

  • Patent number: 5397411
    Abstract: A method for making an optical fiber bundle which, in one aspect, includes bending each of a plurality of optical fibers to form a bend therein and then suspending the fibers over a suspension member; holding the fibers taut under tension; applying potting material to the fiber bends and curing it; and removing the fibers from the suspension member.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: March 14, 1995
    Assignee: Optex Biomedical, Inc.
    Inventors: David J. Costello, James R. Salter, Leslie A. Schlain, Nadhir B. Kosa, James R. Salter, Raghuvir Singh
  • Patent number: 5335305
    Abstract: Methods for making optical fiber sensor probes for measuring or monitoring parameters of fluids, including but not limited to measuring blood gas concentrations and pH either in a vessel in vitro or in a human artery. Such probes, in one aspect, have one or more optical fibers with one or more chambers with a chemical indicating materialtherein which changes in response to light transmitted therethrough. In one aspect such probes have a probe body including a plurality of fibers having a substantial portion of their surfaces covered with an opaque material to enhance light signal transmission therethrough. Such probes may also have a coating thereon of an anti-thrombogenic mnaterial.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: August 2, 1994
    Assignee: OPtex Biomedical, Inc.
    Inventors: Nadhir B. Kosa, Gene J. Twiggs, James R. Salter, Raghuvir Singh, David J. Costello, Leslie A. Schlain
  • Patent number: 5133032
    Abstract: Connector for stable interface of optical fibers, in one aspect having matable body parts with interior fiber mounts, the matable body parts securable together e.g. by one or more retention clips, snap-fit, or one or more screws; and in one aspect, a middle block or bushing bar for increased stability and convenient access to fiber ends.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: July 21, 1992
    Inventors: James R. Salter, Nadhir B. Kosa
  • Patent number: 5124130
    Abstract: Method for making a probe with a plurality (one or more) of optical fiber sensors containing colorimetric chemical indicators in gaps in the fibers, the fibers bent to provide good light transmission qualities. Apparatus for making a probe with a plurality of such optical fiber sensors. A probe with a plurality of such optical fiber sensors. A vacuum chuck for holding the ends of such fibers.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: June 23, 1992
    Assignee: Optex Biomedical, Inc.
    Inventors: David J. Costello, James R. Salter, Leslie A. Schlain, Nadhir B. Kosa, Raghuvir Singh
  • Patent number: 4994059
    Abstract: A control system for a laser catheter device wherein the control system is provided with means for determining the intensity of laser beam energy at two points, one of which is at the distal tip end thereof, and with the other being interposed along a transmitting column remote from both the source of laser beam energy and the distal tip. A beam splitter means(dichroic filter) is provided for diverting a first portion of the laser beam energy onto a first detector means. Energy passing through the beam splitter is ultimately directed onto a fluorescent member or device disposed adjacent the distal tip, with the fluorescent member or means being capable of emitting or generating radiant energy at a wavelength significantly different from that of the incident laser beam energy. The radiant energy generated by the fluorescent means is directed onto a second surface of the beam splitter means, and ultimately onto a second detector means.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: February 19, 1991
    Assignee: GV Medical, Inc.
    Inventors: Nadhir B. Kosa, James J. Burke, Gary L. Moore
  • Patent number: 4911148
    Abstract: An endoscope having a deflectable tip configured so as to have a small outer diameter of approximately 0.15 inch or less. The endoscope includes a flexible shaft subassembly comprised of a conduit having a deflectable end segment at its distal end which can be controlled by a manually operable mechanism on a handle subassembly. The shaft subassembly further includes a cone subassembly at its proximal end including means for structurally connecting to the handle subassembly. Illumination fibers, an imaging fiber, a pull wire and a working channel extend through the shaft subassembly from its distal end to terminals in the cone subassembly for interfacing to the handle subassembly.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: March 27, 1990
    Assignee: Intramed Laboratories, Inc.
    Inventors: Stephen A. Sosnowski, Nadhir B. Kosa, Steven W. Kovalcheck, John H. Parrish
  • Patent number: 4695697
    Abstract: A control system for an optical fiber laser power delivery system wherein the system employs a tip assembly for the optical fibers which provide focusing and beam divergence, mechanical protection for the optical fibers, and in addition functions as the source of a condition responsive signal useful in monitoring and controlling the system operation. The tip assembly utilizes a synthetic sapphire lens or window having incident laser radiation and temperature dependent fluorescing property useful in generating a signal utilized in a feedback control system for the laser system. The improved tip assembly accordingly has application as an optical fiber shield as well as a signal source for the control and monitor portion of the laser system.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: September 22, 1987
    Assignee: GV Medical, Inc.
    Inventor: Nadhir B. Kosa