Patents by Inventor Lawrence Hofmann

Lawrence Hofmann 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).

  • Methods and devices for percutaneous and surgical interventions
    Patent number: 8979793
    Abstract: Methods and devices for performing percutaneous and surgical interventions. The devices comprising a tubular portion and retractable mechanism at the distal end of the tubular portion. The retractable mechanism prevents the device from pulling out of an anatomical structure during complex interventions, for example, when switching from an antegrade to a retrograde approach within a blood vessel, enables the use of a single sheath when declotting AV hemodialysis fistulas and can provide occlusion of blood flow during interventions and means of removal of debris or clot from the blood vessel.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: March 17, 2015
    Inventor: Lawrence Hofmann
  • METHODS AND DEVICES FOR PERCUTANEOUS AND SURGICAL INTERVENTIONS
    Publication number: 20110245751
    Abstract: Methods and devices for performing percutaneous and surgical interventions. The devices comprising a tubular portion and retractable mechanism at the distal end of the tubular portion. The retractable mechanism prevents the device from pulling out of an anatomical structure during complex interventions, for example, when switching from an antegrade to a retrograde approach within a blood vessel, enables the use of a single sheath when declotting AV hemodialysis fistulas and can provide occlusion of blood flow during interventions and means of removal of debris or clot from the blood vessel.
    Type: Application
    Filed: March 3, 2011
    Publication date: October 6, 2011
    Applicant: THE JOHN HOPKINS UNIVERSITY
    Inventor: Lawrence Hofmann
  • Methods and devices for percutaneous and surgical interventions
    Publication number: 20050228402
    Abstract: Methods and devices for performing percutaneous and surgical interventions. The devices comprising a tubular portion and retractable mechanism at the distal end of the tubular portion. The retractable mechanism prevents the device from pulling out of an anatomical structure during complex interventions, for example, when switching from an antegrade to a retrograde approach within a blood vessel, enables the use of a single sheath when declotting AV hemodialysis fistulas and can provide occlusion of blood flow during interventions and means of removal of debris or clot from the blood vessel.
    Type: Application
    Filed: January 24, 2003
    Publication date: October 13, 2005
    Inventor: Lawrence Hofmann
  • Bean bag with rigid central member
    Patent number: 5492320
    Abstract: A bean bag projectile comprises a disc shaped bag having a rigid connector member joining central portions of the two circular faces thereof. The connector configures the interior volume of the bean bag as a toroidal space, and the space is filled with a granular material. The bag retains its shape when struck by a like bag and is particularly suited for playing a toss shuffle board game which the bags slide and knock one another across a smooth playing surface.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: February 20, 1996
    Inventors: Christopher Hoffman, Lawrence Hofmann