Patents by Inventor John H. Manthorp

John H. Manthorp 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).

  • Cranial flap clamp instrument
    Patent number: 7993349
    Abstract: The disclosed cranial flap clamp includes first and second clamping members and an extension member. A portion of the first member is positionable against inferior surfaces of a bone flap and skull and a portion of the second member is positionable against superior surfaces of the flap and skull. The extension member extends from the first member through the second member and fits between the flap and skull. Movement of either of the clamping members urges the inner surface of the first member against the inferior surfaces of the flap and skull and urges the inner surface of the second member against the superior surfaces of the flap and skull. The securing instrument includes features useful in cutting or crimping the extension member. The tension limiting assembly provides variable designs and combinations for limiting the tension placed on, and exerted by, the securing instrument during use.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: August 9, 2011
    Assignee: Synthes USA, LLC
    Inventors: James P Hearn, John H Manthorp, Sean H Kerr, Bryan Monro Armitage, Paul Burns, Urs Wigger
  • Cranial flap clamp and instrument for use therewith
    Patent number: 7361178
    Abstract: The disclosed cranial flap clamp includes first and second clamping members and an extension member. A portion of the first member is positionable against inferior surfaces of a bone flap and skull and a portion of the second member is positionable against superior surfaces of the flap and skull. The extension member extends from the first member and fits between the flap and skull. The second member has a through opening for receiving the extension member. Movement of either of the clamping members urges the inner surface of the first member against the inferior surfaces of the flap and skull and urges the inner surface of the second member against the superior surfaces of the flap and skull. A stop provided by mechanical deformation of the extension member at any location along its length secures the clamp.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: April 22, 2008
    Assignee: Synthes (U.S.A.)
    Inventors: James P. Hearn, John H. Manthorp, Sean H. Kerr
  • Cranial flap clamp and instrument for use therewith
    Publication number: 20020016593
    Abstract: The disclosed cranial flap clamp includes first and second clamping members and an extension member. A portion of the first member is positionable against inferior surfaces of a bone flap and skull and a portion of the second member is positionable against superior surfaces of the flap and skull. The extension member extends from the first member and 10 fits between the flap and skull. The second member has a through opening for receiving the extension member. Movement of either of the clamping members urges the inner surface of the first member against the inferior surfaces of the flap and skull and urges the inner surface of the second member against the superior surfaces of the flap and skull. A stop provided by mechanical deformation of the extension member at any location along its length secures the clamp.
    Type: Application
    Filed: July 24, 2001
    Publication date: February 7, 2002
    Inventors: James P. Hearn, John H. Manthorp, Sean H. Kerr