Patents by Inventor Andrew Sems

Andrew Sems 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).

  • Intramedullary nail with locking key
    Patent number: 9295504
    Abstract: An intramedullary nail comprises longitudinal channel, a first transverse passage and a second transverse passage. A lag screw extends through the first transverse passage of the intramedullary nail. An anti-rotation shaft extends through the second transverse passage of the intramedullary nail. A cannulated lag screw lock is positioned in the intramedullary shaft and engages the lag screw. The anti-rotation shaft extends through a cross channel in the lag screw lock. A second shaft lock is positioned in the intramedullary nail with the second shaft lock engaging the anti-rotation shaft. In at least one embodiment, the lag screw lock includes a substantially cylindrical body portion rotatably connected to a threaded head portion. In at least one embodiment, the second shaft lock is provided as an end cap including a threaded upper portion and a lower post portion that extends into the lag screw lock.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: March 29, 2016
    Assignee: Biomet C.V.
    Inventors: George J. Haidukewych, Daniel S. Horwitz, Frank A. Liporace, Andrew Sems, Peter Giannoudis, Anthony J. Metzinger, Charles D. Christie, Andrew H. Berthusen
  • Intramedullary nail with locking key
    Patent number: 9179949
    Abstract: An intramedullary nail comprises longitudinal channel, a first transverse passage and a second transverse passage. A lag screw extends through the first transverse passage of the intramedullary nail. An anti-rotation shaft extends through the second transverse passage of the intramedullary nail. A cannulated lag screw lock is positioned in the intramedullary shaft and engages the lag screw. The anti-rotation shaft extends through a cross channel in the lag screw lock. A second shaft lock is positioned in the intramedullary nail with the second shaft lock engaging the anti-rotation shaft. In at least one embodiment, the lag screw lock includes a substantially cylindrical body portion rotatably connected to a threaded head portion. In at least one embodiment, the second shaft lock is provided as an end cap including a threaded upper portion and a lower post portion that extends into the lag screw lock.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: November 10, 2015
    Assignee: Biomet C.V.
    Inventors: George J. Haidukewych, Daniel S. Horwitz, Frank A. Liporace, Andrew Sems, Peter Giannoudis, Anthony J. Metzinger, Charles D. Christie, Andrew H. Berthusen
  • Hip fracture nail system
    Patent number: 8257354
    Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: September 4, 2012
    Assignee: Biomet, C.V.
    Inventors: Anthony J. Metzinger, Peter Giannoudis, George J. Haidukewych, Frank A. Liporace, Andrew Sems
  • Method for implanting a hip fracture nail system
    Patent number: 8241286
    Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: August 14, 2012
    Assignee: Biomet, C.V.
    Inventors: Anthony J. Metzinger, Peter Giannoudis, George J. Haidukewych, Daniel S. Horwitz, Frank A. Liporace, Andrew Sems
  • HIP FRACTURE NAIL SYSTEM
    Publication number: 20110054475
    Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Inventors: Anthony J. Metzinger, Peter Giannoudis, George J. Haidukewych, Frank A. Liporace, Andrew Sems
  • METHOD FOR IMPLANTING A HIP FRACTURE NAIL SYSTEM
    Publication number: 20110054550
    Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Inventors: Anthony J. Metzinger, Peter Giannoudis, George J. Haidukewych, Daniel S. Horwitz, Frank A. Liporace, Andrew Sems
  • INTRAMEDULLARY NAIL WITH LOCKING KEY
    Publication number: 20100249781
    Abstract: An intramedullary nail comprises longitudinal channel, a first transverse passage and a second transverse passage. A lag screw extends through the first transverse passage of the intramedullary nail. An anti-rotation shaft extends through the second transverse passage of the intramedullary nail. A cannulated lag screw lock is positioned in the intramedullary shaft and engages the lag screw. The anti-rotation shaft extends through a cross channel in the lag screw lock. A second shaft lock is positioned in the intramedullary nail with the second shaft lock engaging the anti-rotation shaft. In at least one embodiment, the lag screw lock includes a substantially cylindrical body portion rotatably connected to a threaded head portion. In at least one embodiment, the second shaft lock is provided as an end cap including a threaded upper portion and a lower post portion that extends into the lag screw lock.
    Type: Application
    Filed: March 31, 2009
    Publication date: September 30, 2010
    Applicant: DePuy Products, Inc.
    Inventors: George J. Haidukewych, Daniel S. Horwitz, Frank A. Liporace, Andrew Sems, Peter Giannoudis, Anthony J. Metzinger, Charles D. Christie, Andrew H. Berthusen