Patents Assigned to Richarg Wolf GmbH
  • Patent number: 4137920
    Abstract: Endoscope instrument assembly in which a dual channel guide member, containing a telescope in one channel and a support for a slitting blade in the other channel, is displaceable from an inner barrel and replaceable by a separate elongated tube which is sized to receive the same telescope and which has at its distal end an annular cutting edge.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: February 6, 1979
    Assignee: Richarg Wolf GmbH
    Inventor: Ludwig Bonnet