Patents by Inventor Georg LIESAUS

Georg LIESAUS 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).

  • Trocar sleeve
    Patent number: 8545448
    Abstract: A trocar sleeve includes a distal tubular section, a section which connects to the distal tubular section at a proximal side of the distal tubular section and which is widened proximally, and at least one spiral with a circular outer contour, arranged helically on a periphery of the distal tubular section. The distal tubular section includes a rounded polygonal cross section so that maximal degrees of freedom of the applied instruments result.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: October 1, 2013
    Assignee: Richard Wolf GmbH
    Inventors: Manfred Boebel, Ludwig Bonnet, Eberhard Koerner, Roland Raakow, Georg Liesaus
  • TROCAR SLEEVE
    Publication number: 20110160672
    Abstract: A trocar sleeve includes a distal tubular section, a section which connects to the distal tubular section at a proximal side of the distal tubular section and which is widened proximally, and at least one spiral with a circular outer contour, arranged helically on a periphery of the distal tubular section. The distal tubular section includes a rounded polygonal cross section so that maximal degrees of freedom of the applied instruments result.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Applicant: RICHARD WOLF GMBH
    Inventors: Manfred BOEBEL, Ludwig BONNET, Eberhard KOERNER, Roland RAAKOW, Georg LIESAUS