Patents by Inventor Linda T. Guthrie

Linda T. Guthrie 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).

  • Extendable guidewire for vascular procedures
    Patent number: 4966163
    Abstract: An extendable guidewire system for introducing a dilatation catheter into the arterial system of a patient. The guidewire system has guidewire and extension sections with a connection therebetween which permits the two sections to be joined together and separated simply by twisting the two sections to effect a threaded connection. One of the sections can be used for positioning the catheter within the cardiovascular system, and the other section an be employed to extend the wire to change catheters.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: October 30, 1990
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Jeffrey L. Kraus, Linda T. Guthrie
  • Guidewire assembly with steerable adjustable tip
    Patent number: 4917102
    Abstract: A guidewire assembly particularly suitable for valvuloplasty procedures have an outer tubular member a first shapable core member fixed within the outer member and a second stiffer core member which is axially movable within the out tubular member. The first core member preferably has a double curvature shape with the most distal curvature having a much smaller radius or curvature than the second curvature. When the movable core member is moved proximally, the fixed core member assumes its shaped form and thereby changes the shape of the guidewire. The double curvature shape prevents the traumatic engagement of the distal tip of the guidewire with the lining in the heart chamber and also provides supports to the guidewire when disposed through the heart valve.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: April 17, 1990
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Gary H. Miller, Jeffrey L. Kraus, Linda T. Guthrie
  • Extendable guidewire for cardiovascular procedures
    Patent number: 4827941
    Abstract: An extendable guidewire system for introducing a dilatation catheter into the cardiovascular system. The guidewire has guidewire and extension sections with a connection therebetween which permits the two sections to be joined together and separated simply by pushing the two sections together and pulling them apart. One of the sections can be used for positioning the catheter within the cardiovascular system, and the other section can be employed to extend the wire to change catheters.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: May 9, 1989
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Charles S. Taylor, Robert M. Abrams, Kirsten L. Messner, Beverly Huss, Craig E. Mar, Jeffrey L. Kraus, Linda T. Guthrie
  • Extendable guidewire for cardiovascular procedures
    Patent number: RE34466
    Abstract: An extendable guidewire system for introducing a dilatation catheter into the cardiovascular system. The guidewire has guidewire and extension sections with a connection therebetween which permits the two sections to be joined together and separated simply by pushing the two sections together and pulling them apart. One of the sections can be used for positioning the catheter within the cardiovascular system, and the other section can be employed to extend the wire to change catheters.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: December 7, 1993
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Charles S. Taylor, Robert M. Abrams, Kirsten L. Messner, Beverly Huss, Craig E. Mar, Jeffrey L. Kraus, Linda T. Guthrie