Patents by Inventor Terry Freeman

Terry Freeman 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).

  • HYDRAULIC LOCK COMPENSATING DUMMY VALVE
    Publication number: 20170198549
    Abstract: A dummy valve comprising a housing and a rupture disc disposed within the housing, wherein the housing and the rupture disc define a first internal chamber and associated systems and methods.
    Type: Application
    Filed: June 29, 2015
    Publication date: July 13, 2017
    Inventors: Steven Terry FREEMAN, Wayne J. MABRY, Edward Eugene SHUMILAK, Kenneth Frank TYLER
  • Catheter having a reinforcing mandrel
    Patent number: 7351238
    Abstract: A catheter having a mandrel secured to the catheter or constrained within a dedicated lumen. In one embodiment, the catheter has an inner tubular member and an outer tubular member with a sidewall configured to define a mandrel lumen longitudinally along an inner surface of the outer tubular member or along an outer surface of the inner tubular member. The mandrel lumen may be configured to allow the mandrel to be exchanged to adjust the handling characteristics of the catheter. The mandrel may occupy an intermediate portion of the catheter shaft, or may extend from the proximal end to within proximal or distal shaft sections of the catheter. In coronary artery applications, the mandrel is configured to support the catheter as it bends through the aortic arch and enters the coronary artery.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: April 1, 2008
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Jeong Soo Lee, Tim Geiser, Sandra K. Schenk, Terry Freeman, Cheri Stiger, Fozan El-Nounou
  • Catheter having a reinforcing mandrel
    Patent number: 6733486
    Abstract: A catheter having a mandrel secured to the catheter or constrained within a dedicated lumen. In one embodiment, the catheter has an inner tubular member and an outer tubular member with a sidewall configured to define a mandrel lumen longitudinally along an inner surface of the outer tubular member or along an outer surface of the inner tubular member. The mandrel lumen may be configured to allow the mandrel to be exchanged to adjust the handling characteristics of the catheter. The mandrel may occupy an intermediate portion of the catheter shaft, or may extend from the proximal end to within proximal or distal shaft sections of the catheter. In coronary artery applications, the mandrel is configured to support the catheter as it bends through the aortic arch and enters the coronary artery.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: May 11, 2004
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Jeong Soo Lee, Tim Geiser, Sandra K. Schenk, Terry Freeman, Cheri Stiger, Fozan El-Nounou
  • Catheter having a reinforcing mandrel
    Publication number: 20040082935
    Abstract: A catheter having a mandrel secured to the catheter or constrained within a dedicated lumen. In one embodiment, the catheter has an inner tubular member and an outer tubular member with a sidewall configured to define a mandrel lumen longitudinally along an inner surface of the outer tubular member or along an outer surface of the inner tubular member. The mandrel lumen may be configured to allow the mandrel to be exchanged to adjust the handling characteristics of the catheter. The mandrel may occupy an intermediate portion of the catheter shaft, or may extend from the proximal end to within proximal or distal shaft sections of the catheter. In coronary artery applications, the mandrel is configured to support the catheter as it bends through the aortic arch and enters the coronary artery.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 29, 2004
    Inventors: Jeong Soo Lee, Tim Geiser, Sandra K. Schenk, Terry Freeman, Cheri Stiger, Fozan El-Nounou