Patents by Inventor Jeffrey D. Vlahos
Jeffrey D. Vlahos 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: 10682167Abstract: Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.Type: GrantFiled: September 10, 2018Date of Patent: June 16, 2020Assignee: Pioneer Surgical Technology, Inc.Inventors: Jason Sandstrom, Jeffrey Hoffman, Jeffrey D. Vlahos
-
Publication number: 20190083149Abstract: Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.Type: ApplicationFiled: September 10, 2018Publication date: March 21, 2019Inventors: Jason Sandstrom, Jeffrey Hoffman, Jeffrey D. Vlahos
-
Patent number: 10070901Abstract: Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.Type: GrantFiled: October 5, 2015Date of Patent: September 11, 2018Assignee: Pioneer Surgical Technology, Inc.Inventors: Jason Sandstrom, Jeffrey Hoffman, Jeffrey D. Vlahos
-
Publication number: 20160128741Abstract: Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.Type: ApplicationFiled: October 5, 2015Publication date: May 12, 2016Inventors: Jason Sandstrom, Jeffrey Hoffman, Jeffrey D. Vlahos
-
Patent number: 9149307Abstract: Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.Type: GrantFiled: September 30, 2013Date of Patent: October 6, 2015Assignee: PIONEER SURGICAL TECHNOLOGY, INC.Inventors: Jason Sandstrom, Jeffrey Hoffman, Jeffrey D. Vlahos
-
Publication number: 20140100617Abstract: Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.Type: ApplicationFiled: September 30, 2013Publication date: April 10, 2014Inventors: Jason Sandstrom, Jeffrey Hoffman, Jeffrey D. Vlahos
-
Patent number: 8545505Abstract: Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.Type: GrantFiled: December 23, 2010Date of Patent: October 1, 2013Assignee: Pioneer Surgical Technology, Inc.Inventors: Jason P. Sandstrom, Jeffrey A. Hoffman, Jeffrey D. Vlahos
-
Publication number: 20110257692Abstract: Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.Type: ApplicationFiled: December 23, 2010Publication date: October 20, 2011Inventors: Jason P. Sandstrom, Jeffrey A. Hoffman, Jeffrey D. Vlahos
-
Patent number: 6682561Abstract: An implantable, spinal, vertebral replacement device comprises a tubular cage for fitting into a space left by a missing vertebral body and for optionally retaining bone graft material. First and second transverse plates are respectively positioned at opposed ends of the tubular cage for supporting the respective cage ends and for pressing a plate face against an adjacent vertebral body in spinal column-supporting relation. The transverse plates are each joined in transverse relation to a vertebral attachment plate which, in use, extends generally parallel to the spine. The vertebral attachment plate defines screw holes for preferably open helix screw securance to the pair of adjacent vertebral bodies that bracket the space left by the missing vertebral body.Type: GrantFiled: March 25, 2002Date of Patent: January 27, 2004Assignee: Pioneer Laboratories, Inc.Inventors: Matthew N. Songer, Jeffrey D. Vlahos, Thomas S. Kilpela
-
Publication number: 20020169508Abstract: An implantable, spinal, vertebral replacement device comprises a tubular cage for fitting into a space left by a missing vertebral body and for optionally retaining bone graft material. First and second transverse plates are respectively positioned at opposed ends of the tubular cage for supporting the respective cage ends and for pressing a plate face against an adjacent vertebral body in spinal column-supporting relation. The transverse plates are each joined in transverse relation to a vertebral attachment plate which, in use, extends generally parallel to the spine. The vertebral attachment plate defines screw holes for preferably open helix screw securance to the pair of adjacent vertebral bodies that bracket the space left by the missing vertebral body.Type: ApplicationFiled: March 25, 2002Publication date: November 14, 2002Applicant: Pioneer Laboratories, Inc.Inventors: Matthew N. Songer, Jeffrey D. Vlahos, Thomas S. Kilpela
-
Patent number: 6395030Abstract: An implantable, spinal, vertebral replacement device comprises a tubular cage for fitting into a space left by a missing vertebral body and for optionally retaining bone graft material. First and second transverse plates are respectively positioned at opposed ends of the tubular cage for supporting the respective cage ends and for pressing a plate face against an adjacent vertebral body in spinal column-supporting relation. The transverse plates are each joined in transverse relation to at least one vertebral attachment plate which, in use, extends generally parallel to the spine. The vertebral attachment plate defines screw holes for screw securance to at least one vertebral body adjacent to the space. Preferably, one or more vertebral attachment plates are connected to the pair of adjacent vertebral bodies that bracket the space left by the missing vertebral body.Type: GrantFiled: April 27, 2000Date of Patent: May 28, 2002Assignees: Michigan Technological University, Pioneer Laboratories, Inc.Inventors: Matthew N. Songer, Jeffrey D. Vlahos, Thomas S. Kilpela, Gopal Jayaraman