Patents by Inventor Douglas S. Kephart

Douglas S. Kephart 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: 9877840
    Abstract: An adjustable intervertebral implant for implantation into a patient's spine in-between first and second adjacent or neighboring vertebrae. The implant may include one or more of the following features: (i) inner and outer members coupled by a radiographically imagable expansion ring, (ii) detachable endplates coupled to the implant via a polygonal press-fit coupling interface that accommodate a range of lordotic endplates to be applied to the implant using any surgical approach, (iii) an interference pre-loaded set screw for selectively locking the height of the construct, (iv) a radiographically imagable marker for determining the expansion of the implant, and (v) an asymmetric thread coupling between the expansion ring and the inner member.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: January 30, 2018
    Assignee: DePuy Synthes Products, Inc.
    Inventors: William N. Woodburn, Sr., Tom Pepe, William McDonough, Douglas S. Kephart, David E. Evans
  • Publication number: 20140067072
    Abstract: An adjustable intervertebral implant for implantation into a patient's spine in-between first and second adjacent or neighboring vertebrae. The implant may include one or more of the following features: (i) inner and outer members coupled by a radiographically imageable expansion ring, (ii) detachable endplates coupled to the implant via a polygonal press-fit coupling interface that accommodate a range of lordotic endplates to be applied to the implant using any surgical approach, (iii) an interference pre-loaded set screw for selectively locking the height of the construct, (iv) a radiographically imageable marker for determining the expansion of the implant, and (v) an asymmetric thread coupling between the expansion ring and the inner member.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicant: DePuy Synthes Products, LLC
    Inventors: William N. Woodburn, SR., Tom Pepe, William McDonough, Douglas S. Kephart, David E. Evans
  • Patent number: 8540770
    Abstract: An adjustable intervertebral implant (100) for implantation into a patient's spine in-between first and second adjacent or neighboring vertebrae. The implant may include one or more of the following features: (i) inner (110) and outer (115) members coupled by a radiographically imageable expansion ring (130), (ii) detachable endplates (120,125) coupled to the implant via a polygonal press-fit coupling interface that accommodate a range of lordotic endplates to be applied to the implant using any surgical approach, (iii) an interference pre-loaded set screw (160) for selectively locking the height of the construct, (iv) a radiographically imageable marker (180) for determining the expansion of the implant, and (v) an asymmetric thread coupling (133,190) between the expansion ring and the inner member.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: September 24, 2013
    Assignee: Depuy Synthes Products, LLC
    Inventors: William N. Woodburn, Sr., Tom Pepe, William McDonough, Douglas S. Kephart, David E. Evans
  • Patent number: 8308734
    Abstract: An apparatus for use with a spinal implant includes a handle structure with a passage. A shaft with a screw thread is moveable within the passage in the handle structure. A pusher block is linked to the shaft, and has a forward surface configured to engage the spinal implant. A screw-threaded clutch member is supported on the handle structure for movement into and out of engagement with the screw thread on the shaft.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: November 13, 2012
    Assignee: Synthes USA, LLC
    Inventors: David E. Evans, Douglas S. Kephart
  • Patent number: 8043344
    Abstract: An apparatus for use with a spinal implant includes a handle structure with a passage. A shaft with a screw thread is moveable within the passage in the handle structure. A pusher block is linked to the shaft, and has a forward surface configured to engage the spinal implant. A screw-threaded clutch member is supported on the handle structure for movement into and out of engagement with the screw thread on the shaft.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: October 25, 2011
    Assignee: Synthes USA, LLC
    Inventors: David E. Evans, Douglas S. Kephart
  • Publication number: 20110218631
    Abstract: An adjustable intervertebral implant (100) for implantation into a patient's spine in-between first and second adjacent or neighboring vertebrae. The implant may include one or more of the following features: (i) inner (110) and outer (115) members coupled by a radiographically imageable expansion ring (130), (ii) detachable endplates (120,125) coupled to the implant via a polygonal press-fit coupling interface that accommodate a range of lordotic end-plates to be applied to the implant using any surgical approach, (iii) an interference pre-loaded set screw (160) for selectively locking the height of the construct, (iv) a radiographically imageable marker (180) for determining the expansion of the implant, and (v) an asymmetric thread coupling (133,190) between the expansion ring and the inner member.
    Type: Application
    Filed: September 4, 2008
    Publication date: September 8, 2011
    Applicant: SYNTHES USA, LLC
    Inventors: William N. Woodburn, SR., Tom Pepe, William McDonough, Douglas S. Kephart, David E. Evans
  • Publication number: 20100262154
    Abstract: An apparatus for use with a spinal implant includes a handle structure with a passage. A shaft with a screw thread is moveable within the passage in the handle structure. A pusher block is linked to the shaft, and has a forward surface configured to engage the spinal implant. A screw-threaded clutch member is supported on the handle structure for movement into and out of engagement with the screw thread on the shaft.
    Type: Application
    Filed: June 22, 2010
    Publication date: October 14, 2010
    Inventors: David E. Evans, Douglas S. Kephart
  • Patent number: 7722622
    Abstract: An apparatus for use with a spinal implant includes a handle structure with a passage. A shaft with a screw thread that is moveable within the passage in the handle structure. A pusher block is linked to the shaft, and has a forward surface configured to engage the spinal implant. A screw-threaded clutch member is supported on the handle structure for movement into and out of engagement with the screw thread on the shaft.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: May 25, 2010
    Assignee: Synthes USA, LLC
    Inventors: David E. Evans, Douglas S. Kephart
  • Publication number: 20090209967
    Abstract: An apparatus for use with a spinal implant includes a handle structure with a passage. A shaft with a screw thread is moveable within the passage in the handle structure. A pusher block is linked to the shaft, and has a forward surface configured to engage the spinal implant. A screw-threaded clutch member is supported on the handle structure for movement into and out of engagement with the screw thread on the shaft.
    Type: Application
    Filed: April 30, 2009
    Publication date: August 20, 2009
    Inventors: David E. Evans, Douglas S. Kephart
  • Patent number: 7131974
    Abstract: The present invention is directed to a surgical drill guide. The drill guide may include a first drill guide body having a distal end for placement substantially adjacent a bone, a second drill guide body slidable with respect to the first drill guide body and having a proximal end for contacting a portion of a drill bit, a handle associated with at least one of the first drill guide body and the second drill guide body, and a detent mechanism for releasably retaining the position of the first drill guide body with respect to the second drill guide body in predefined increments. Additionally or alternatively, the drill guide may include a locking member movable between a first position where it substantially prevents sliding of the second drill guide body with respect to the first drill guide body, and a second position where it permits sliding of the second drill guide body with respect to the first drill guide body. The locking member may be resiliently biased to the first position.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: November 7, 2006
    Inventors: Thomas R. Keyer, Roger Berger, Douglas S. Kephart, Martin Walther
  • Patent number: D700698
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: March 4, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: David E. Evans, Douglas S. Kephart