Patents by Inventor Andrew L. Lerohl

Andrew L. Lerohl 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: 8012078
    Abstract: Method and apparatus are disclosed employing ionizing radiation for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus may include a catheter in which the radiation source is advanced hydraulically after the catheter is in place within the heart. Various fixation devices are also disclosed for fixing the location of the catheter within the heart.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: September 6, 2011
    Assignee: Best Vascular
    Inventors: Raoul Bonan, Charles E. Larsen, Roelof Trip, Douglas B. Schumer, Jack C. Griffis, III, Andrew L. Lerohl
  • Publication number: 20110196186
    Abstract: Method and apparatus are disclosed employing ionizing radiation. for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus may include a catheter in which the radiation source is advanced hydraulically after the catheter is in place within the heart. Various fixation devices are also disclosed for fixing the location of the catheter within the heart.
    Type: Application
    Filed: April 20, 2011
    Publication date: August 11, 2011
    Inventors: RAOUL BONAN, Charles E. Larsen, Roelof Trip, Douglas B. Schumer, Jack C. Griffis, III, Andrew L. Lerohl
  • Patent number: 7311656
    Abstract: A transfer device usable in a system for intraluminal treatment of a selected site in a body of a patient in which the transfer device comprises an integral pump for pressurizing and circulating fluid through a fluid path defined by the transfer device and associated catheter. A removable fluid cartridge is provided including a reservoir from which fluid is drawn by the pump and into which fluid is returned after being circulated through the fluid path. The pump may be a peristaltic pump and the fluid cartridge may include an elongated fluid pick-up having an inlet through which fluid is introduced into the transfer device. The fluid pick-up is sized in length so that the inlet is always submerged in the fluid regardless of the orientation of the transfer device. A removable treatment cartridge having a lumen forming part of the fluid path may also be provided, and a storage sleeve for the treatment cartridge may be of a radiation-blocking material, such as quartz.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: December 25, 2007
    Assignee: Best Vascular, Inc.
    Inventors: James D. Hughett, Robert Michael Webster, Douglas Layland Armstrong, Byron Lee Boylston, Gregg T. Juett, Richard A. Hillstead, Jack C. Griffis, III, Andrew L. Lerohl, Mark Dehdashtian, Marvin A. Guiles
  • Patent number: 7182725
    Abstract: Method and apparatus are disclosed employing ionizing radiation for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus may include a catheter in which the radiation source is advanced hydraulically after the catheter is in place within the heart. Various fixation devices are also disclosed for fixing the location of the catheter within the heart.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: February 27, 2007
    Assignee: Best Vascular, Inc.
    Inventors: Raoul Bonan, Charles E. Larsen, Roelof Trip, Douglas B. Schumer, Jack C. Griffis, III, Andrew L. Lerohl
  • Patent number: 7066873
    Abstract: A transfer device usable in a system for intraluminal treatment of a selected site in a body of a patient in which the transfer device comprises an integral pump for pressurizing and circulating fluid through a fluid path defined by the transfer device and associated catheter. A removable fluid cartridge is provided including a reservoir from which fluid is drawn by the pump and into which fluid is returned after being circulated through the fluid path. The pump may be a peristaltic pump and the fluid cartridge may include an elongated fluid pick-up having an inlet through which fluid is introduced into the transfer device. The fluid pick-up is sized in length so that the inlet is always submerged in the fluid regardless of the orientation of the transfer device. A removable treatment cartridge having a lumen forming part of the fluid path may also be provided, and a storage sleeve for the treatment cartridge may be of a radiation-blocking material, such as quartz.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: June 27, 2006
    Assignee: Best Vascular, Inc.
    Inventors: James D. Hughett, Robert Michael Webster, Douglas Layland Armstrong, Byron Lee Boylston, Gregg T. Juett, Richard A. Hillstead, Jack C. Griffis, III, Andrew L. Lerohl, Mark Dehdashtian, Marvin A. Guiles
  • Publication number: 20040097778
    Abstract: A transfer device usable in a system for intraluminal treatment of a selected site in a body of a patient in which the transfer device comprises an integral pump for pressurizing and circulating fluid through a fluid path defined by the transfer device and associated catheter. A removable fluid cartridge is provided including a reservoir from which fluid is drawn by the pump and into which fluid is returned after being circulated through the fluid path. The pump may be a peristaltic pump and the fluid cartridge may include an elongated fluid pick-up having an inlet through which fluid is introduced into the transfer device. The fluid pick-up is sized in length so that the inlet is always submerged in the fluid regardless of the orientation of the transfer device. A removable treatment cartridge having a lumen forming part of the fluid path may also be provided, and a storage sleeve for the treatment cartridge may be of a radiation-blocking material, such as quartz.
    Type: Application
    Filed: October 27, 2003
    Publication date: May 20, 2004
    Applicant: Novoste Corporation
    Inventors: James D. Hughett, Robert Michael Webster, Douglass Layland Armstrong, Byron Lee Boylston, Gregg T. Juett, Richard A. Hillstead, Jack C. Griffis, Andrew L. Lerohl, Mark Dedashtian, Marvin A. Guiles
  • Publication number: 20040097777
    Abstract: A transfer device usable in a system for intraluminal treatment of a selected site in a body of a patient in which the transfer device comprises an integral pump for pressurizing and circulating fluid through a fluid path defined by the transfer device and associated catheter. A removable fluid cartridge is provided including a reservoir from which fluid is drawn by the pump and into which fluid is returned after being circulated through the fluid path. The pump may be a peristaltic pump and the fluid cartridge may include an elongated fluid pick-up having an inlet through which fluid is introduced into the transfer device. The fluid pick-up is sized in length so that the inlet is always submerged in the fluid regardless of the orientation of the transfer device. A removable treatment cartridge having a lumen forming part of the fluid path may also be provided, and a storage sleeve for the treatment cartridge may be of a radiation-blocking material, such as quartz.
    Type: Application
    Filed: October 27, 2003
    Publication date: May 20, 2004
    Applicant: Novoste Corporation
    Inventors: James D. Hughett, Robert Michael Webster, Douglas Layland Armstrong, Byron Lee Boylston, Gregg T. Juett, Richard A. Hillstead, Jack C. Griffis, Andrew L. Lerohl, Mark Dedashtian, Marvin A. Guiles
  • Patent number: 6659934
    Abstract: A transfer device usable in a system for intraluminal treatment of a selected site in a body of a patient in which the transfer device comprises an integral pump for pressurizing and circulating fluid through a fluid path defined by the transfer device and associated catheter. A removable fluid cartridge is provided including a reservoir from which fluid is drawn by the pump and into which fluid is returned after being circulated through the fluid path. The pump may be a peristaltic pump and the fluid cartridge may include an elongated fluid pick-up having an inlet through which fluid is introduced into the transfer device. The fluid pick-up is sized in length so that the inlet is always submerged in the fluid regardless of the orientation of the transfer device.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: December 9, 2003
    Assignee: Novoste Corporation
    Inventors: James D. Hughett, Robert Michael Webster, Douglas Layland Armstrong, Byron Lee Boylston, Gregg T. Juett, Richard A. Hillstead, Jack C. Griffis, III, Andrew L. Lerohl, Mark Dehdashtian, Marvin A. Guiles
  • Publication number: 20030153802
    Abstract: Method and apparatus are disclosed employing ionizing radiation for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus may include a catheter in which the radiation source is advanced hydraulically after the catheter is in place within the heart. Various fixation devices are also disclosed for fixing the location of the catheter within the heart.
    Type: Application
    Filed: September 23, 2002
    Publication date: August 14, 2003
    Inventors: Raoul Bonan, Charles E. Larsen, Roelof Trip, Douglas B. Schumer, Jack C. Griffis, Andrew L. Lerohl
  • Patent number: 5722401
    Abstract: A catheter probe comprising a flexible elongate tubular member having proximal and distal extremities. An expandable assembly capable of moving from a contracted position to an expanded position is secured to the distal extremity of the flexible elongate tubular member and is formed from at least two elongate members movable between contracted and expanded positions. The elongate members have extremities which are joined so that the elongate members extend at an angle relative to each other to form a vee therebetween. A plurality of longitudinally and radially spaced-apart electrodes are carried by the expandable assembly so that they can be moved into engagement with the wall of the heart when the expandable assembly is expanded into the expanded position. Electrical conductors extend through the elongate tubular member and are connected to the electrodes for performing electrical functions with respect to the electrodes.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: March 3, 1998
    Assignee: Cardiac Pathways Corporation
    Inventors: Susan M. Pietroski, Andrew L. Lerohl, Harold A. Heitzmann, Mir A. Imran
  • Patent number: 4790315
    Abstract: Perfusion dilatation catheter and method of manufacturing the same. The catheter has an elongated flexible shaft with an inflatable balloon mounted near the distal end of the shaft. A first lumen in the shaft communicates with the balloon for inflating and deflating the balloon. A second lumen extends between the proximal and distal ends of the shaft and is adapted to receive a guide wire. Openings formed in the side wall of the shaft on the proximal and distal sides of the balloon communicate with the second lumen to provide a path for blood to flow past the balloon when it is inflated.
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: December 13, 1988
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Richard L. Mueller, Jr., Andrew L. Lerohl