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).
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Patent number: 9877840Abstract: 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: GrantFiled: August 28, 2013Date of Patent: January 30, 2018Assignee: DePuy Synthes Products, Inc.Inventors: William N. Woodburn, Sr., Tom Pepe, William McDonough, Douglas S. Kephart, David E. Evans
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Publication number: 20140067072Abstract: 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: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Applicant: DePuy Synthes Products, LLCInventors: William N. Woodburn, SR., Tom Pepe, William McDonough, Douglas S. Kephart, David E. Evans
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Patent number: 8540770Abstract: 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: GrantFiled: September 4, 2008Date of Patent: September 24, 2013Assignee: Depuy Synthes Products, LLCInventors: William N. Woodburn, Sr., Tom Pepe, William McDonough, Douglas S. Kephart, David E. Evans
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Patent number: 8308734Abstract: 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: GrantFiled: June 22, 2010Date of Patent: November 13, 2012Assignee: Synthes USA, LLCInventors: David E. Evans, Douglas S. Kephart
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Patent number: 8043344Abstract: 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: GrantFiled: April 30, 2009Date of Patent: October 25, 2011Assignee: Synthes USA, LLCInventors: David E. Evans, Douglas S. Kephart
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Publication number: 20110218631Abstract: 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: ApplicationFiled: September 4, 2008Publication date: September 8, 2011Applicant: SYNTHES USA, LLCInventors: William N. Woodburn, SR., Tom Pepe, William McDonough, Douglas S. Kephart, David E. Evans
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Publication number: 20100262154Abstract: 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: ApplicationFiled: June 22, 2010Publication date: October 14, 2010Inventors: David E. Evans, Douglas S. Kephart
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Patent number: 7722622Abstract: 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: GrantFiled: February 16, 2006Date of Patent: May 25, 2010Assignee: Synthes USA, LLCInventors: David E. Evans, Douglas S. Kephart
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Publication number: 20090209967Abstract: 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: ApplicationFiled: April 30, 2009Publication date: August 20, 2009Inventors: David E. Evans, Douglas S. Kephart
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Patent number: 7131974Abstract: 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: GrantFiled: October 14, 2003Date of Patent: November 7, 2006Inventors: Thomas R. Keyer, Roger Berger, Douglas S. Kephart, Martin Walther
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Patent number: D700698Type: GrantFiled: November 9, 2012Date of Patent: March 4, 2014Assignee: DePuy Synthes Products, LLCInventors: David E. Evans, Douglas S. Kephart