Patents by Inventor Carl C. Awh

Carl C. Awh 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: 6572608
    Abstract: A microsurgical laser probe is provided with a distal end portion of an optic fiber that projects from a tubular sleeve of the probe and can be caused to bend relative to the probe sleeve by manual manipulation of a mechanism on a handle of the probe.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: June 3, 2003
    Inventors: Eric T. Lee, Patrick S. Jensen, Anthony D. Cornetto, III, Terry H. Shelley, Carl C. Awh, Eugene de Juan, Jr., Michael D. Auld, Gregg D. Scheller
  • Publication number: 20030088257
    Abstract: A microsurgical endo-illuminator is provided with a distal end portion of an optic fiber that projects from a tubular sleeve of the illuminator and can be caused to bend relative to the illuminator sleeve by manual manipulation of a mechanism on a handle of the illuminator.
    Type: Application
    Filed: November 6, 2001
    Publication date: May 8, 2003
    Inventors: Carl C. Awh, Michael S. Poulsen
  • Patent number: 5893873
    Abstract: A surgical instrument includes a handle having a pair of actuating wings and a removable instrument tip. The instrument tip is constructed to perform a surgical operation. The handle includes an axially movable slider actuated by the actuating wings which operate the instrument tip. A shaft extends through the handle and is coupled to the instrument tip so that rotation of the shaft rotates the tip without interfering with the axial movement of the slider. The gripping surface of the actuating wings have a rounded surface to allow limited rotational movement of the instrument in the user's hand. The gripping surfaces are inclined toward the instrument tip to resist the handle slipping from the user's hand during use in the near vertical orientation.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: April 13, 1999
    Assignee: Johns Hopkins University
    Inventors: R. Scott Rader, Alexander C. Walsh, Carl C. Awh, Eugene deJuan, Jr.
  • Patent number: 5563584
    Abstract: A liquid level sensing and monitoring system for a medical fluid infusion system has an IV spike with a pressure sensor which contacts fluid in an infusion container such as an IV bag or bottle. When an adequate amount of fluid is in the container, the resulting pressure on the sensor is at a relatively high level; however, when the fluid reservoir is nearly depleted, the pressure on the sensor falls to a low level, thereby activating the sensor and associated control circuitry which operates an alarm or warning indicator. In lieu of the pressure sensor, the device may use a resistive or capacitive sensor. When the liquid level falls below the electrical sensor, its state changes, and the alarm circuitry is activated.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: October 8, 1996
    Assignee: The Johns Hopkins University
    Inventors: R. Scott Rader, Eric H. Schallen, Alexander C. Walsh, Carl C. Awh, Eugene de Juan
  • Patent number: 5554155
    Abstract: A multi-function pick-manipulator device that provides the functions of a vitreoretinal pick, fiberoptic illumination, and irrigation/aspiration. The manipulator may also function as a bipolar diathermy device. To provide a compact, multi-function device, the aspiration tube projects distally beyond the distal end of the fiber optic containing support tube of the manipulator. The projecting aspiration tube is bent and shaped at its tip to define a pick-like structure that extends in a direction generally transverse to the axis of the fiber optics. An aspiration opening is defined through the wall of the aspiration tube proximal to the pick-like tip.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: September 10, 1996
    Assignee: Johns Hopkins University
    Inventors: Carl C. Awh, R. Scott Rader, Alexander C. Walsh, Eugene de Juan, Jr.