Patents by Inventor R. McGrath

R. McGrath 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: 20020082478
    Abstract: A laryngoscope includes a body portion having a receiving portion for receiving an elongate blade adapted to be inserted into a patient's month. The laryngoscope also includes a handle that is pivotally connected to the receiving portion and spaced apart from the receiving portion in the direction of the pivoting axis. The handle is pivotable about the axis between a folded position where the handle extends substantially parallel to the blade, and a working condition where the handle extends substantially transverse to the blade.
    Type: Application
    Filed: April 6, 2001
    Publication date: June 27, 2002
    Inventor: Matthew J.R. McGrath
  • Publication number: 20020048177
    Abstract: An LED arrangement which produces a color temperature adjustable white light. The LED arrangement includes one or more white LEDs and a first drive circuit operable to supply a first drive current to the one or more white LEDs such that a white light is output at a desired intensity. The LED arrangement further includes one or more colored LEDs arranged such that a light output from the one or more colored LEDs combines with the white light to produce a resultant light having a desired color temperature. The colored LEDs are driven by a second drive circuit which supplies a second drive current to the one or more colored LEDs such that a colored light is output at a desired intensity, the intensity of the colored light output from the one or more colored LEDs being adjustable so as to adjust the color temperature of the resultant light.
    Type: Application
    Filed: September 6, 2001
    Publication date: April 25, 2002
    Inventors: Peter R. Rahm, William R. McGrath
  • Patent number: 6348039
    Abstract: A rectal thermosensing unit includes, according to one aspect thereof, an elongate member having an inflation lumen extending therethrough. An inflatable balloon is supported by the elongate member. An interior of the inflatable balloon is in fluid communication with the inflation lumen. An insertion lumen extends through the elongate member. An introducer is insertable into the insertion lumen. At least one temperature sensing device is supported by the inflatable balloon. The rectal thermosensing probe is located in a rectum by inserting the introducer into the inflation lumen, inserting the inflatable balloon supported by the elongate member having the introducer inserted in the insertion lumen therein into the rectum, removing the introducer from the insertion lumen, and inflating the inflatable balloon by providing fluid through the inflation lumen.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: February 19, 2002
    Assignee: Urologix, Inc.
    Inventors: Jonathan L. Flachman, James V. Kauphusman, Jonathan R. McGrath, Gregg S. Sutton
  • Patent number: 6223085
    Abstract: A method and apparatus for reducing restenosis of a stenotic region of a blood vessel after performing a dilatation angioplasty treatment is disclosed. The method includes radiating microwave energy from a microwave antenna to kill a medial tissue layer of the blood vessel in the stenotic region. The radiation is applied during or after inflation of dilatation balloon to permanently dilate the stenotic region. When radiation is applied during dilatation of the stenotic region, the dilatation balloon forms a seal against the inner wall surface of the blood vessel to exclude blood in the vessel from contacting the stenotic region. The method preferably further includes cooling the blood circulating in the blood vessel about a shaft of the catheter with cooling fluid circulating within cooling lumens of the catheter and cooling an inner wall surface of the blood vessel in the stenotic region during the application of radiation to the medial cell layer.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: April 24, 2001
    Assignee: Urologix, Inc.
    Inventors: Mitchell Dann, Scott P. Thome, Jonathan R. McGrath, Eric N. Rudie, Jonathan L. Flachman, Teruo T. Hirose
  • Patent number: 6123083
    Abstract: Tissue surrounding a bodily conduit, such as a urethra, is thermally treated while preventing restrictions of the bodily conduit due to heat-induced shrinkage of collagen rich tissue surrounding the bodily conduit. A select volume of collagen-containing tissue surrounding the urethra is heated to destroy the tissue and to cause the tissue to be capable of being plastically remodeled into a selected shape. The selected shape is defined while the tissue is heated, and the tissue is allowed to cool while continuing to define the selected shape to cause plastic remodeling of the tissue into the selected shape. The method also includes performing a thermal therapy treatment without causing the surrounding tissue to exceed a collagen transition temperature of the tissue during the heating step of the treatment session.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: September 26, 2000
    Assignee: Urologix, Inc.
    Inventors: Jonathan R. McGrath, Mitchell Dann
  • Patent number: 6036631
    Abstract: A device and method for treatment of cancerous tissue from a body conduit involves insertion into the body conduit of a probe including an energy-emitting element for delivering ionizing energy. The body conduit is dilated to decrease a distance between at least a portion of the body conduit and the cancerous tissue. Ionizing energy is delivered from the energy-emitting element to selectively injure the cancerous tissue, with dilation of the body conduit minimizing the radiation dose delivered to the body conduit for a given radiation dose delivered to the cancerous tissue.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: March 14, 2000
    Assignee: Urologix, Inc.
    Inventors: Jonathan R. McGrath, Michael R. Forman
  • Patent number: 5987360
    Abstract: A device for prostate treatment is inserted into a prostatic portion of an urethra and connected to an energy source. Energy is delivered to the prostate from the device. The amount of energy emitted to prostatic tissue adjacent to a bladder is greater than that emitted to prostatic tissue distant from the bladder.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: November 16, 1999
    Assignee: Urologix, Inc.
    Inventors: Jonathan R. McGrath, Eric N. Rudie
  • Patent number: 5899932
    Abstract: A method of prostate treatment includes the step of inserting into a prostatic portion of urethra an energy emitting device that is connected to an energy source. Energy is delivered to the prostate from the energy emitting device. The amount of energy emitted to prostatic tissue adjacent to a bladder is greater than that emitted to prostatic tissue distant from the bladder.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: May 4, 1999
    Assignee: Urologix, Inc.
    Inventors: Mitchell Dann, Jonathan R. McGrath, Eric N. Rudie
  • Patent number: 5531685
    Abstract: An apparatus includes a flexible tubular member containing a shape-memory tube formed to include a lumen extending along the central axis of the tubular member. A liner sleeve extends through the lumen of the shape-memory tube and lies inside the tubular member. A control system selectively heats the shape-memory tube to its activated state causing the shape-memory tube to move toward a predetermined shape if it is different than its present configuration. Whether the shape-memory tube moves or not, it will increase significantly in stiffness, both axial and bending to help retain, hold, or wedge the apparatus in place in a selected body cavity while catheters or other objects are passed through a lumen in the liner sleeve.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: July 2, 1996
    Assignees: Catheter Research, Inc., Schneider (USA) Inc.
    Inventors: Chad G. Hemmer, John A. Steen, Michael R. Forman, Jonathan R. McGrath
  • Patent number: 5265751
    Abstract: A safety container having an array of ratchet teeth cooperating with a pawl stop is provided. The cover of the container can only be removed by counterclockwise rotation while the pawl is urged out of engagement with the ratchet teeth.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: November 30, 1993
    Assignee: Russel-Stanley Corporation
    Inventors: William Lima, Earl V. Lind, Philip D. Bartlett, Michael R. McGrath
  • Patent number: 5147060
    Abstract: A safety container having an array of ratchet teeth cooperating with a pawl stop is provided. The cover of the container can only be removed by counterclockwise rotation while the pawl is urged out of engagement with the ratchet teeth.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: September 15, 1992
    Assignee: Russell-Stanley Corporation
    Inventors: William Lima, Earl V. Lind, Philip D. Bartlett, Michael R. McGrath
  • Patent number: 5138289
    Abstract: A noncontacting waveguide backshort is provided for use with frequencies of interest between 1 and 1000 GHz including a relatively rugged metallic bar movably mounted within the waveguide in a MYLAR insulator. A series of regularly shaped and spaced circular or rectangular openings are made in the metallic bar to form sections of high impedance alternating with sections of the bar having low impedance. This creates a periodic impedance variation which serves to provided an adjustable short circuit in a waveguide for the frequencies of interest.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: August 11, 1992
    Assignee: California Institute of Technology
    Inventor: William R. McGrath
  • Patent number: 5115217
    Abstract: A device for tuning a circuit includes a substrate, a transmission line on the substrate that includes first and second conductors coupled to a circuit to be tuned, and a movable short-circuit for varying the impedance the transmission line presents to the circuit to be tuned. The movable short-circuit includes a dielectric layer disposed atop the transmission line and a distributed shorting element in the form of a conductive member that is configured to be slid along at least a portion of the transmission line atop the dielectric layer. The conductive member is configured to span the first and second conductors of the transmission line and to define at least a first opening that spans the two conductors so that the conductive member includes first and second sections separated by the first opening.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: May 19, 1992
    Assignee: California Institute of Technology
    Inventors: William R. McGrath, Victor M. Lubecke
  • Patent number: 4084397
    Abstract: An arbor assembly for use with rotary mowers, and the combination of such arbor assembly with a mower blade subassembly and with a pulley subassembly. The arbor assembly comprises a shaft having reduced diameter end portions defining upper and lower shoulders against which are seated the inner races of upper and lower antifriction bearings. The outer races of the upper and lower antifriction bearings are supported by bearing retainers supported by the mower deck. The opposite ends of the shaft are splined. The opposite ends of the shaft are also internally axially tapped. A mower blade subassembly is adapted to be mounted by means of a cap screw which engages the tapped lower end of the shaft. The mower blade subassembly comprises a blade adaptor and a mower blade which bears against the under surface of the blade adaptor. The mower blade is free to rotate relative to the shaft if the blade strikes an obstruction.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: April 18, 1978
    Assignee: Allis-Chalmers Corporation
    Inventor: Laurence R. McGrath