Patents by Inventor Jakob Kemper

Jakob Kemper 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).

  • Patent number: 8603091
    Abstract: The invention relates to a pelvic or scapular bone plate implant having a planar or curved outer frame portion. The frame has a surface which can be aligned with a surface of a bone to which the bone plate is to be implanted. The plate has a flap portion, the outer frame portion at least partially surrounds the flap portion such that the bone contacting surface the flap portion is located within the outer boundary of the frame portion. The flap portion is connected with the outer frame portion via a material interconnection which allows the flap to be bent with respect to the frame. A method for implanting such a bone plate implant is also taught.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: December 10, 2013
    Assignee: Stryker Trauma AG
    Inventors: Christian Lutz, Jakob Kemper
  • Patent number: 8398636
    Abstract: A hip fracture device providing distance limited dynamization, load controlled dynamization and combinations of both dynamization methods by varying components. The hip fracture device includes a plate having a head portion and a shaft portion. A barrel projects from the head portion of the plate and a screw is inserted in the barrel. A friction pin is slidably connected with the screw, and an end cap is fixed to the head portion of the plate. The friction pin is fixedly connected with the end cap. The screw slides over the friction pin and toward the end cap when a load is applied on the fracture device. The load required for further sliding of the screw over the friction pin increases incrementally as the screw slides towards the end cap.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: March 19, 2013
    Assignee: Stryker Trauma GmbH
    Inventors: Bernd Simon, Jakob Kemper, Carsten Hoffmann
  • Publication number: 20120226279
    Abstract: The invention relates to a pelvic or scapular bone plate implant having a planar or curved outer frame portion. The frame has a surface which can be aligned with a surface of a bone to which the bone plate is to be implanted. The plate has a flap portion, the outer frame portion at least partially surrounds the flap portion such that the bone contacting surface the flap portion is located within the outer boundary of the frame portion. The flap portion is connected with the outer frame portion via a material interconnection which allows the flap to be bent with respect to the frame. A method for implanting such a bone plate implant is also taught.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 6, 2012
    Applicant: Stryker Trauma AG
    Inventors: Christian Lutz, Jakob Kemper
  • Publication number: 20080269807
    Abstract: A bone plate having a plurality of openings for receiving a compression bone screw or a cortical screw. An end cap, threadably insertable in the opening and having a layer of polymeric material interposed between the end cap and the top of the head such that the compression of the polymeric material would allow slight axial movement of the screw. Alternatively, a locking ring adapted to attach to the head of the screw and having shape complimentary to the features formed on the head. The locking ring and the bone screw being assembled together and being insertable in the bone simultaneously using a dedicated instrument. Compression may be applied to a bone fracture by turning the bone screw alone after the locking ring has reached its final axial position.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 30, 2008
    Applicant: Stryker Trauma GmbH
    Inventors: Bernd Simon, Jakob Kemper, Carsten Hoffmann
  • Publication number: 20080269752
    Abstract: A hip fracture device providing distance limited dynamization, load controlled dynamization and combinations of both dynamization methods by varying components. The hip fracture device includes a plate having a head portion and a shaft portion. A barrel projects from the head portion of the plate and a screw is inserted in the barrel. A friction pin is slidably connected with the screw, and an end cap is fixed to the head portion of the plate. The friction pin is fixedly connected with the end cap. The screw slides over the friction pin and toward the end cap when a load is applied on the fracture device. The load required for further sliding of the screw over the friction pin increases incrementally as the screw slides towards the end cap.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 30, 2008
    Applicant: Stryker Trauma GmbH
    Inventors: Bernd Simon, Jakob Kemper, Carsten Hoffmann