Patents by Inventor James D. Schwender

James D. Schwender 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).

  • MULTI-THREAD BONE SCREW AND METHOD
    Publication number: 20160113693
    Abstract: A bone screw comprises a threaded shank including a distal end portion and a proximal end portion, and defining a first threaded section extending from the distal end portion toward the proximal end portion and adapted for anchoring in cancellous bone. A second threaded section extends contiguously from the first threaded section toward the proximal end portion. The second threaded section has a finer thread pattern relative to the first threaded section. In one embodiment, the first threaded section includes a first helical threading defining a single lead thread pattern for anchoring in cancellous bone, and the second threaded section includes a second helical threading interleaved with the first threading to define a duel lead thread pattern for engagement in cortical bone. In a further embodiment, the bone screw includes a head portion extending from the threaded shank and configured for coupling to a spinal implant.
    Type: Application
    Filed: December 31, 2015
    Publication date: April 28, 2016
    Inventors: Francis Denis, Timothy A. Garvey, Joseph H. Perra, Manuel Pinto, James D. Schwender, Ensor Transfeldt, Michael Veldman
  • Multi-thread bone screw and method
    Patent number: 9247976
    Abstract: A bone screw comprises a threaded shank including a distal end portion and a proximal end portion, and defining a first threaded section extending from the distal end portion toward the proximal end portion and adapted for anchoring in cancellous bone. A second threaded section extends contiguously from the first threaded section toward the proximal end portion The second threaded section has a finer thread pattern relative to the first threaded section. In one embodiment, the first threaded section includes a first helical threading defining a single lead thread pattern for anchoring in cancellous bone, and the second threaded section includes a second helical threading interleaved with the first threading to define a duel lead thread pattern for engagement in cortical bone. In a further embodiment, the bone screw includes a head portion extending from the threaded shank and configured for coupling to a spinal implant.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: February 2, 2016
    Assignee: Warsaw Orthopedic, Inc
    Inventors: Francis Denis, Timothy A. Garvey, Joseph H. Perra, Manuel Pinto, James D. Schwender, Ensor Transfeldt, Michael S. Veldman, William A. Rezach
  • MULTI-THREAD BONE SCREW AND METHOD
    Publication number: 20120116464
    Abstract: A bone screw comprises a threaded shank including a distal end portion and a proximal end portion, and defining a first threaded section extending from the distal end portion toward the proximal end portion and adapted for anchoring in cancellous bone. A second threaded section extends contiguously from the first threaded section toward the proximal end portion The second threaded section has a finer thread pattern relative to the first threaded section. In one embodiment, the first threaded section includes a first helical threading defining a single lead thread pattern for anchoring in cancellous bone, and the second threaded section includes a second helical threading interleaved with the first threading to define a duel lead thread pattern for engagement in cortical bone. In a further embodiment, the bone screw includes a head portion extending from the threaded shank and configured for coupling to a spinal implant.
    Type: Application
    Filed: December 12, 2011
    Publication date: May 10, 2012
    Applicant: WARSAW ORTHOPEDIC, INC
    Inventors: Franics Denis, Timothy A. Garvey, Joseph H. Perra, Manuel Pinto, James D. Schwender, Ensor Transfeldt, Michael S. Veldman, William A. Rezach
  • Multi-thread bone screw and method
    Patent number: 8075604
    Abstract: A bone screw comprising a threaded shank including a distal end portion and a proximal end portion, and defining a first threaded section extending from the distal end portion toward the proximal end portion and adapted for anchoring in cancellous bone, and a second threaded section extending contiguously from the first threaded section toward the proximal end portion and adapted for engagement in cortical bone, with the second threaded section having a finer thread pattern relative to the first threaded section. In one embodiment, the first threaded section includes a first helical threading defining a single lead thread pattern for anchoring in cancellous bone, and the second threaded section includes a second helical threading interleaved with the first threading to define a duel lead thread pattern for engagement in cortical bone. In a further embodiment, the bone screw includes a head portion extending from the threaded shank and configured for coupling to a spinal implant.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: December 13, 2011
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Francis Denis, Timothy A. Garvey, Joseph H. Perra, Manuel Pinto, James D. Schwender, Ensor Transfeldt, Michael S. Veldman, William A. Rezach
  • Intervertebral spacer and insertion tool
    Patent number: 7901458
    Abstract: An implant for placing in the spine is disclosed. The implant has a tool engaging surface on its trailing end configured for intimate engagement with an insertion tool. The insertion tool configuration is particularly suited for implants made of brittle materials including bone and bone substitutes. Also disclosed is an insertion tool having a gripping end adapted for intimate engagement with an implant. In one embodiment, the insertion tool is operable by axial movement of one gripping arm with respect to the other.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: March 8, 2011
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Steven D. DeRidder, James D. Schwender, Christopher I. Shaffrey, T. Andrew Simonton
  • Intervertebral spacer and insertion tool
    Publication number: 20070162128
    Abstract: An implant for placing in the spine is disclosed. The implant has a tool engaging surface on its trailing end configured for intimate engagement with an insertion tool. The insertion tool configuration is particularly suited for implants made of brittle materials including bone and bone substitutes. Also disclosed is an insertion tool having a gripping end adapted for intimate engagement with an implant. In one embodiment, the insertion tool is operable by axial movement of one gripping arm with respect to the other.
    Type: Application
    Filed: December 16, 2005
    Publication date: July 12, 2007
    Applicant: SDGI Holdings, Inc.
    Inventors: Steven D. DeRidder, James D. Schwender, Christopher I. Shaffrey, T. Andrew Simonton