Patents by Inventor Dennis G. Crandall

Dennis G. Crandall 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: 10292737
    Abstract: A spinal implant comprises a fastener including a head and defining a longitudinal axis. A member is configured for disposal of the head and defines an inner groove configured for disposal of a band that is engageable with the head to connect the fastener and the member. The member is moveable relative to the longitudinal axis. The member defines a passageway configured for disposal of a tether. Systems, spinal constructs, surgical instruments and methods are disclosed.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: May 21, 2019
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Molly K. Rice, Dennis G. Crandall
  • Publication number: 20180353217
    Abstract: A spinal implant comprises a fastener including a head and defining a longitudinal axis. A member is configured for disposal of the head and defines an inner groove configured for disposal of a band that is engageable with the head to connect the fastener and the member. The member is moveable relative to the longitudinal axis. The member defines a passageway configured for disposal of a tether. Systems, spinal constructs, surgical instruments and methods are disclosed.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 13, 2018
    Inventors: Molly K. Rice, Dennis G. Crandall
  • Patent number: 9872713
    Abstract: A spinal construct includes a spinal rod and a reduction member connected with the spinal rod and engageable with a tether connected to the spinal rod. The reduction member is translatable relative to the tether to dispose the spinal rod with a fastener configured for penetrating tissue. Systems and methods are disclosed.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 23, 2018
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Joshua W. Simpson, Dennis G. Crandall, Jason M. May
  • Patent number: 9848919
    Abstract: A spinal construct comprising a first portion. A second portion defines a longitudinal axis and is configured to penetrate tissue. A tether is fastened with the first portion such that a spinal implant connected with the tether is movable to a plurality of orientations relative to the longitudinal axis. Systems and methods are disclosed.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: December 26, 2017
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Joshua W. Simpson, Dennis G. Crandall, Richard Quinn Brown, Matthew Van Nortwick
  • Publication number: 20160324546
    Abstract: A spinal construct comprising a first portion. A second portion defines a longitudinal axis and is configured to penetrate tissue. A tether is fastened with the first portion such that a spinal implant connected with the tether is movable to a plurality of orientations relative to the longitudinal axis. Systems and methods are disclosed.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 10, 2016
    Inventors: Joshua W. Simpson, Dennis G. Crandall, Richard Quinn Brown, Matthew Van Nortwick
  • Publication number: 20160242819
    Abstract: A spinal construct comprises a member extending between a first end and a second end defining an opening configured for movement of the first end therethrough and disposal of the longitudinal member about spinal tissue. A malleable element is disposed with the first end. Systems and methods are disclosed.
    Type: Application
    Filed: February 25, 2015
    Publication date: August 25, 2016
    Inventors: Joshua W. Simpson, Rex W. Armstrong, Dennis G. Crandall, Maria-Rosa Padilla, Gary S. Lindemann
  • Publication number: 20150164561
    Abstract: A spinal construct includes a spinal rod and a reduction member connected with the spinal rod and engageable with a tether connected to the spinal rod. The reduction member is translatable relative to the tether to dispose the spinal rod with a fastener configured for penetrating tissue. Systems and methods are disclosed.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 18, 2015
    Applicant: Warsaw Orthopedic, Inc.
    Inventors: Joshua W. Simpson, Dennis G. Crandall, Jason M. May
  • Patent number: 8864801
    Abstract: A method is disclosed for increasing the stiffness of an intervertebral disc between vertebral bodies. The method includes providing a syringe with a needle approximately in the range of 16 to 25 gauge; providing a material having a first stage with a first viscosity adapted to flow through the needle, the material having a second stage with a second viscosity greater than the first viscosity, the second stage material having a stiffness in a range of 1.0-5.0 MPa; testing the annulus fibrosus of the disc to ensure that the annulus fibrosus has sufficient continuity so as to retain the first flowable stage material when subsequently injected into the disc; inserting the needle into the annulus fibrosus; injecting the first stage material into the disc; and permitting the first stage material to become the second stage material so as to form a load bearing implant in the disc.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: October 21, 2014
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Dennis G. Crandall, T. Andrew Simonton, Sean M. Haddock
  • Publication number: 20120116458
    Abstract: A bone anchor assembly and a rigid extension rod removably coupleable thereto. The bone anchor assembly includes a screw base and a pivoting post. The post has a first recess in a proximal endface thereof, which may have first threads therein. The extension rod has a distal section separated from a proximal section by an intermediate section. The rod distal section has external threads that are threadingly engageable with the threads of the post recess. The rod third section may have external third threads of a different size. The rod intermediate section has an unthreaded exterior. When the extension rod is coupled to the post, an exterior of the second section of the extension rod is aligned with the exterior of the post. Other connection approaches may be used. An optional spacer may also be used to couple the rod to the post.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 10, 2012
    Applicant: WARSAW ORTHOPEDIC, INC.
    Inventors: Matthew Van Nortwick, Dennis G. Crandall
  • Publication number: 20080269717
    Abstract: A method is disclosed for increasing the stiffness of an intervertebral disc between vertebral bodies. The method includes providing a syringe with a needle approximately in the range of 16 to 25 gauge; providing a material having a first stage with a first viscosity adapted to flow through the needle, the material having a second stage with a second viscosity greater than the first viscosity, the second stage material having a stiffness in a range of 1.0-5.0 MPa; testing the annulus fibrosus of the disc to ensure that the annulus fibrosus has sufficient continuity so as to retain the first flowable stage material when subsequently injected into the disc; inserting the needle into the annulus fibrosus; injecting the first stage material into the disc; and permitting the first stage material to become the second stage material so as to form a load bearing implant in the disc.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Inventors: Dennis G. Crandall, T. Andrew Simonton, Sean M. Haddock