Patents Assigned to RISystem AG
  • Patent number: 9271778
    Abstract: A method and an apparatus for screw removal from bone plates used in osteosynthesis. The method includes the steps of: performing an incision in the soft tissue surrounding an implanted bone screw having a screw head inserted in an elongated plate hole of a bone plate; positioning an expandable tip of the apparatus in a portion of the plate hole which is not occupied by the bone screw and in the proximity of the screw head of the bone screw, wherein the expandable tip is in an unexpanded position; and widening the plate hole in a lateral direction essentially perpendicular to a major axis of the elongated plate hole by expanding the expandable tip of the apparatus from the unexpanded position to an expanded position.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: March 1, 2016
    Assignee: RISystem AG
    Inventor: Romano Matthys
  • Publication number: 20150105788
    Abstract: A method and an apparatus for screw removal from bone plates used in osteosynthesis. The method includes the steps of: performing an incision in the soft tissue surrounding an implanted bone screw having a screw head inserted in an elongated plate hole of a bone plate; positioning an expandable tip of the apparatus in a portion of the plate hole which is not occupied by the bone screw and in the proximity of the screw head of the bone screw, wherein the expandable tip is in an unexpanded position; and widening the plate hole in a lateral direction essentially perpendicular to a major axis of the elongated plate hole by expanding the expandable tip of the apparatus from the unexpanded position to an expanded position.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 16, 2015
    Applicant: RISystem AG
    Inventor: Romano Matthys