Patents by Inventor Ronald M. Isaac

Ronald M. Isaac 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).

  • Tube placement verifier system
    Patent number: 5325873
    Abstract: A system for detecting the position of an object within a body of biological tissue includes a resonant circuit attached to the object and a probe including a receiver/transmitter that operates at the resonant frequency of the object. The resonant circuit rings in response to pulses transmitted from the probe thereby activating receiver circuits which control a visual display indicating the direction the probe should be moved to center it over the object. When the object is centered a second visual display provides confirmation.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: July 5, 1994
    Assignees: Abbott Laboratories, White's Electronics, Inc.
    Inventors: Richard E. Hirschi, James P. Karbowski, James L. Tiefenthal, Ronald M. Isaac
  • Tube placement verifier system
    Patent number: 5316024
    Abstract: A system for detecting the position of an object within a body of biological tissue includes a resonant circuit attached to the object and a probe including a receiver/transmitter that operates at the resonant frequency of the object. The resonant circuit rings in response to pulses transmitted from the probe thereby activating receiver circuits which control a visual display indicating the direction the probe should be moved to center it over the object. When the object is centered a second visual display provides confirmation.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: May 31, 1994
    Assignee: Abbott Laboratories
    Inventors: Richard E. Hirschi, James P. Karbowski, James L. Tiefenthal, Ronald M. Isaac
  • Stoma creator gastrostomy device and method for placement of a feeding tube
    Patent number: 5167627
    Abstract: A stoma creator is provided comprising a flexible tube having a first opening, a tapered dilator portion, having a second opening, the diameter of the first opening being greater than the diameter of the second opening, and a connecting portion. The stoma creator has a tapered dilator having a side wall which gently tapers from approximately 5 French to 14 French.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: December 1, 1992
    Assignee: Abbott Laboratories
    Inventors: Robert D. Clegg, Ronald M. Isaac, William H. Hirsch
  • Stoma creator gastrostomy device and method for placement of a feeding tube
    Patent number: 5074846
    Abstract: A stoma creator is provided comprising a flexible tube having a first opening, a tapered dilator portion, having a second opening, the diameter of the first opening being greater than the diameter of the second opening, and a connecting portion. The stoma creator has a tapered dilator having a side wall which gently tapers from approximately 5 French to 14 French.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: December 24, 1991
    Assignee: Abbott Laboratories
    Inventors: Robert D. Clegg, Ronald M. Isaac, William H. Hirsch
  • Enteral feeding system utilizing gastrointestinal myoelectrography
    Patent number: 4921481
    Abstract: An improved system for initially positioning and for continuous or intermittent monitoring of the location of the distal end of a feeding tube in a patient's gastrointestinal tract and for selectively controlling a feeding device associated therewith by detecting and processing myoelectric signals unique to different areas of the gastrointestinal tract, such signals being detected by electrodes carried by the distal end of the feeding tube and transmitted by leads extending through the feeding tube to a monitor.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: May 1, 1990
    Assignee: Abbott Laboratories
    Inventors: Roger G. Danis, Ronald M. Isaac, Harry A. Puryear, Jr.