Patents by Inventor Stephen Walulik

Stephen Walulik 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: 7749224
    Abstract: An external fixation system for a joint having a first and second bone and defining an anatomical axis of rotation is provided. The fixation system can include a proximal frame couplable to the first bone and a distal frame couplable to the second bone. A first connector can include a first member pivotally coupled to a second member at a first pivot axis. A second connector can include a third member pivotally coupled to a fourth member at a second pivot axis. The first and second connectors are mountable between the proximal and distal frames at a location such that the first and second pivot axes are coaxial with the anatomical axis of rotation.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: July 6, 2010
    Assignee: EBI, LLC
    Inventors: Jeffery Cresina, Stephen Walulik
  • Publication number: 20090192550
    Abstract: A bone plating system includes a plate member and a first bone screw. The plate member defines a longitudinal axis and has a top surface and a bottom surface. The plate member further defines an elongated hole extending between the top surface and the bottom surface with a width in a direction generally perpendicular to the elongated axis and a length with a greater dimension in a direction generally parallel to the elongated axis. The elongated hole is defined by a sidewall having a spherical cross section in the direction generally perpendicular to the elongated axis. The sidewall has a threading. The first bone screw has a threaded and spherical head for threadably engaging the elongated hole. The threading extends completely around the sidewall of the elongated hole such that the first bone screw may threadably engage the elongated hole anywhere along the length.
    Type: Application
    Filed: April 3, 2009
    Publication date: July 30, 2009
    Applicant: EBI, L.P.
    Inventors: Takkwong Ross Leung, Stephen Walulik, Kirk Bailey
  • Patent number: 7422593
    Abstract: An external fixation system for a bone and associated method. The fixation system includes a proximal frame defining a continuous proximal boundary, a distal frame defining a continuous distal boundary, and at least one frame connector configured for interconnecting the proximal and distal frames at any position along at least one of the proximal and distal boundaries.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: September 9, 2008
    Assignee: EBI, L.P.
    Inventors: Jeffery Cresina, Takkwong R Leung, Stephen Walulik, Stephen Conti
  • Publication number: 20070161983
    Abstract: An external fixation system for a bone and associated method. The fixation system includes a proximal frame defining a continuous proximal boundary, a distal frame defining a continuous distal boundary, and at least one frame connector configured for interconnecting the proximal and distal frames at any position along at least one of the proximal and distal boundaries.
    Type: Application
    Filed: December 8, 2005
    Publication date: July 12, 2007
    Inventors: Jeffery Cresina, Takkwong Leung, Stephen Walulik, Stephen Conti
  • Publication number: 20070161984
    Abstract: An external fixation system for a joint having a first and second bone and defining an anatomical axis of rotation is provided. The fixation system can include a proximal frame couplable to the first bone and a distal frame couplable to the second bone. A first connector can include a first member pivotally coupled to a second member at a first pivot axis. A second connector can include a third member pivotally coupled to a fourth member at a second pivot axis. The first and second connectors are mountable between the proximal and distal frames at a location such that the first and second pivot axes are coaxial with the anatomical axis of rotation.
    Type: Application
    Filed: December 7, 2006
    Publication date: July 12, 2007
    Applicant: EBI, L.P.
    Inventors: Jeffery Cresina, Stephen Walulik
  • Publication number: 20060155276
    Abstract: A fixation assembly for securing a first bone portion in fixed relationship relative to a second bone portion. The fixation assembly includes a plurality of modular components articulatably coupled therebetween, at least one fastener interconnecting two of the plurality of components, and a clamp connector adapted for selective unilateral or multilateral bone fixation. The entire fixation assembly or portions thereof can be selectively radiolucent.
    Type: Application
    Filed: January 11, 2005
    Publication date: July 13, 2006
    Inventors: Stephen Walulik, Kirk Bailey, Tim Elghazaly, Takkwong Leung
  • Publication number: 20050277937
    Abstract: A plating system for bone includes a plate member. The plate member has a top surface and a bottom surface. A plurality of holes are defined by the plate member. Each of the holes extend between the top surface and the bottom surface along an axis. At least a first hole of the plurality of holes is a threaded hole and has a first dimension generally perpendicular to the axis and a second dimension generally perpendicular to the axis. The first dimension is greater than the second dimension.
    Type: Application
    Filed: June 10, 2004
    Publication date: December 15, 2005
    Inventors: Takkwong Leung, Stephen Walulik, Kirk Bailey
  • Publication number: 20050113829
    Abstract: An external fixation device includes a frame assembly having a first arc segment and a second arc segment. The first arc segment is for interconnection to a first bone portion. The second arc segment is for interconnection to a second bone portion. The first arc segment is coupled to the second arc segment for relative rotation. The external fixation assembly additionally includes an articulating module. The articulating module includes a central member, a first pivot segment and a second pivot segment. The first pivot segment is coupled to the central member for driven rotation about a first pivot axis. The second pivot segment is coupled to the central member for driven rotation about a second pivot axis. The second pivot axis is substantially perpendicular to the first pivot axis.
    Type: Application
    Filed: July 15, 2003
    Publication date: May 26, 2005
    Applicant: EBI, L.P.
    Inventors: Stephen Walulik, Kirk Bailey, Takkwong Leung, Richard Davidson
  • Publication number: 20050015087
    Abstract: Frame assembly for external fixation device and associated method. The frame assembly includes a first arc segment and a second arc segment. The first arc segment is for interconnection to a first bone portion. The second arc segment is for interconnection to a second bone portion. The first arc segment is coupled to the second arc segment for controlled relative rotation.
    Type: Application
    Filed: October 9, 2003
    Publication date: January 20, 2005
    Inventors: Stephen Walulik, Kirk Bailey, Takkwong Leung