Patents by Inventor David Hawkes

David Hawkes 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).

  • Publication number: 20190274838
    Abstract: An expandable interbody spacer includes a first endplate surface located on a first side of the spacer and adapted to contact a vertebral endplate surface of a first vertebral body, a second endplate surface located on a second, opposed, side of the spacer and adapted to contact a vertebral endplate surface of a second, opposed, vertebral body and an expansion mechanism adapted to selectively apply a distracting force between the first endplate surface and the second endplate surface, whereby actuation of the expansion mechanism causes the spacer to transition between a compressed insertion configuration to an expanded fusion configuration. The spacer also includes one or more of a deformable surface, a porosity to promote bone on-growth or through-growth, a stiffness substantially equivalent to cortical bone, and structure distributing loads through the spacer substantially without transferring the loads through higher-stiffness structures.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 12, 2019
    Inventors: Daniel Manwill, Peter Halverson, David Hawkes
  • Publication number: 20190274841
    Abstract: Improved fixation or stabilization of implants is achieved via one or more deployable spikes or anchors. The deployable spikes or anchors may be present in the implant in a nested, collapsed, or retracted position while the implant is inserted into the human body, and may then be deployed (e.g., into adjacent bone) after the implant is in place, thereby fixing the implant's location against unwanted movement. Such fixation or stabilization of the implant may reduce patients' pain, may improve overall short-term and long-term stability of the implant, and may improve osteo-integration into the implant.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 12, 2019
    Inventors: David Hawkes, Peter Halverson, Jeffrey Ellis Harris, Jeffrey S. Hoskins
  • Publication number: 20190105085
    Abstract: Instruments, tools, and methods assist in assembling components of a surgical construct, for example, a press-on rod to a pedicle screw. A includes an elongate driving rod having a distal tip adapted to engage and transfer a rotational force to a surgical screw and a driver connection at a proximate end thereof, a first elongate shaft having a distal end, a proximal end, and a generally U-shaped channel adapted to receive the elongate driving rod therein, and a retention mechanism to retain the elongate driving rod in the generally U-shaped channel. A tool includes an elongate hollow rod having a collapsible distal tip, an elongate shaft slidingly disposed within the elongate hollow rod, the elongate shaft having a distal end comprising a driving feature, and a locking mechanism to prevent the distal end of the elongate shaft from being inadvertently removed from the distal tip of the elongate hollow rod.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 11, 2019
    Inventors: David Hawkes, Quentin Aten
  • Publication number: 20180235684
    Abstract: A self-retaining screwdriver includes an elongate inner driver rod and an outer sleeve disposed about the inner driver rod and having a distal end, the distal end having a plurality of fingers. Each of the fingers includes a retention feature. The retention feature may be formed as an area of thickening of the finger, whereby an effective diameter of the outer sleeve at the retention features of the fingers is increased. When the inner driver rod is disposed within the outer sleeve with a distal portion of the inner driver rod extended as far as the retention feature, the presence of the inner driver rod prevents the fingers from being radially displaced inwardly. When the inner driver rod is at least partially withdrawn, the distal portion of the inner driver rod does not extend to a distal end of the fingers, and the fingers can be radially displaced inwardly.
    Type: Application
    Filed: October 26, 2017
    Publication date: August 23, 2018
    Inventors: David Hawkes, Peter Halverson
  • Publication number: 20180158201
    Abstract: A method and apparatus are provided for registering pre-operative three dimensional (3-D) image data of a deformable organ comprising vessels with multiple intra-operative two-dimensional (2-D) ultrasound images of the deformable organ acquired by a laparoscopic ultrasound probe during a laparoscopic procedure. The apparatus is configured to: generate a 3-D vessel graph from the 3-D pre-operative image data; use the multiple 2-D ultrasound images to identify 3-D vessel locations in the deformable organ; determine a rigid registration between the 3-D vessel graph from the 3-D pre-operative image data and the identified 3-D vessel locations in the deformable organ; and apply said rigid registration to align the pre-operative three dimensional (3-D) image data with the two-dimensional (2-D) ultrasound images, wherein the rigid registration is locally valid in the region of the deformable organ of interest for the laparoscopic procedure.
    Type: Application
    Filed: June 17, 2016
    Publication date: June 7, 2018
    Applicant: UCL Business PLC
    Inventors: Stephen Thompson, Matt Clarkson, David Hawkes, Yi Song
  • Patent number: 9801667
    Abstract: Instruments, tools, and methods assist in assembling components of a surgical construct, for example, a press-on rod to a pedicle screw. A includes an elongate driving rod having a distal tip adapted to engage and transfer a rotational force to a surgical screw and a driver connection at a proximate end thereof, a first elongate shaft having a distal end, a proximal end, and a generally U-shaped channel adapted to receive the elongate driving rod therein, and a retention mechanism to retain the elongate driving rod in the generally U-shaped channel. A tool includes an elongate hollow rod having a collapsible distal tip, an elongate shaft slidingly disposed within the elongate hollow rod, the elongate shaft having a distal end comprising a driving feature, and a locking mechanism to prevent the distal end of the elongate shaft from being inadvertently removed from the distal tip of the elongate hollow rod.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: October 31, 2017
    Assignee: Nexus Spine, L.L.C.
    Inventors: David Hawkes, Quentin Aten
  • Publication number: 20170156880
    Abstract: Orthopedic implants, particularly interbody spacers, have a combination of correct pore size and stiffness/flexibility. When the implants have the proper pore size and stiffness, osteocytes are able to properly bridge the pores of the implant and then experience a proper compressive load to stimulate the bone cells to form bone within the pores. An implant includes a body formed of an osteoconductive material and having a stiffness of between 400 megapascals (MPa) and 1,200 MPa. Additionally, the body includes a plurality of pores having an average size of between 150 microns and 600 microns. The pores permit the growth of bone therein. The body is formed of packs of coils which may be formed using an additive manufacturing process and using traditional orthopedic implant materials such as titanium and titanium alloys while still achieving desired stiffness and pore sizes of the implants.
    Type: Application
    Filed: December 7, 2016
    Publication date: June 8, 2017
    Inventors: Peter Halverson, David Hawkes
  • Publication number: 20170135735
    Abstract: Instruments, tools, and methods assist in assembling components of a surgical construct, for example, a press-on rod to a pedicle screw. A includes an elongate driving rod having a distal tip adapted to engage and transfer a rotational force to a surgical screw and a driver connection at a proximate end thereof, a first elongate shaft having a distal end, a proximal end, and a generally U-shaped channel adapted to receive the elongate driving rod therein, and a retention mechanism to retain the elongate driving rod in the generally U-shaped channel. A tool includes an elongate hollow rod having a collapsible distal tip, an elongate shaft slidingly disposed within the elongate hollow rod, the elongate shaft having a distal end comprising a driving feature, and a locking mechanism to prevent the distal end of the elongate shaft from being inadvertently removed from the distal tip of the elongate hollow rod.
    Type: Application
    Filed: November 16, 2015
    Publication date: May 18, 2017
    Inventors: David Hawkes, Quentin Aten
  • Publication number: 20160074174
    Abstract: An expandable interbody spacer for use in spinal fusion procedures includes a plurality of rigid segments connected by flexible connections to form a ring encompassing and defining a hollow central area of variable dimensions. The flexible connections between the plurality of rigid segments may include flexible regions formed between the rigid segments or a continuous flexible member extending along a multisegmented region. The flexible regions formed between the rigid segments may be integrally formed with the rigid segments. One or more of the flexible regions formed between the rigid segments may include a plurality of flexure divisions extending between adjacent rigid segments. One or more of the flexible regions formed between the rigid segments may include a flexure extending between adjacent rigid segments. The rigid segments may include surfaces to limit the range of motion between adjoining rigid segments.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 17, 2016
    Inventors: Peter Halverson, David Hawkes
  • Publication number: 20160074074
    Abstract: Variations on improved pedicle screw coupling assemblies, along with methods for use of such assemblies provide improved functional characteristics over existing devices. A coupling assembly is capable of providing rigid fixed attachment between a pedicle screw fully seated to underlying bone and a member extending between adjacent pedicle screws. The coupling assembly includes a pedicle screw having a threaded shaft and a head portion. The head portion includes a driving feature and a proximally oriented bore having a bore diameter. In one version, the coupling assembly includes a member adapted to extend between adjacent pedicle screws. The member includes a protrusion adapted for insertion into the bore of the pedicle screw, the protrusion having a protrusion diameter that is larger than the bore of the pedicle screw head portion. In another version, the coupling assembly includes a spherical bore in the screw head.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 17, 2016
    Inventor: David Hawkes
  • Patent number: 8961522
    Abstract: A bone reduction method and apparatus includes a bone reduction tool including a shaft with a proximal end portion, a distal end portion for insertion into a fractured bone, a first rigid portion located at the distal end portion, and a first flexible portion located between the first rigid portion and the proximal end portion.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: February 24, 2015
    Assignee: Biomet C.V.
    Inventors: Anthony J. Metzinger, David A. Hawkes
  • Patent number: 8894687
    Abstract: A coupling assembly for use in surgical constructs comprises a first body and a second body. One of the first body and the second body includes a male member and an other of the first body and the second body includes a female member. The male member is sized and shaped to be received within the female member and the female member has an internal bore sized and shaped to receive the male member therein. A raised portion is formed on or attached to the male member. An area of decreased diameter is associated with the internal bore of the female member. The first and second bodies are coupleable to one another by an interference fit when the raised portion of the male member is positioned within the area of decreased diameter associated with the internal bore of the female member.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: November 25, 2014
    Assignee: Nexus Spine, L.L.C.
    Inventors: David Hawkes, Ken Gardner, Peter A. Halverson
  • Patent number: 8808300
    Abstract: An assembly includes a guide component having (i) a base defining a first passageway, and (ii) a handle attached to the base, the base including a first coupling component. The assembly further includes a first sheath defining a second passageway, the first sheath including a second coupling component configured to cooperate with the first coupling component to couple the first sheath to the base. The first passageway is aligned with the second passageway when the first sheath is coupled to the base. The assembly further includes a stop structure defining a central passage, the stop structure including an external surface having a plurality of keyways defined therein. The first sheath includes a key member configured to be selectively received in any one of the plurality of keyways. The stop structure is fixed in relation to the first sheath when the key member is positioned in any one of the plurality of keyways.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: August 19, 2014
    Assignee: Biomet C.V.
    Inventors: Matthew V. Leyden, Aaron J. Bisek, David A. Hawkes, Marc E. Ruhling, Jeffrey B. Waffensmith, Matthew S. Wallace
  • Patent number: 8781167
    Abstract: An apparatus and a computer-implemented method are provided for determining a location in a target image (T) of a site on a surface of a physical object using two or more reference images (I1, I2) of said physical object that have been obtained with a reference imaging device. Each of said two or more reference images includes said site on the surface of the physical object and was obtained with the reference imaging device having a different position and/or orientation relative to said physical object. The target image is obtained by a target imaging device and includes the site on the surface of the physical object. For each reference image, a set of feature mappings from the reference image to the target image is used to determine the epipolar geometry between the reference image and the target image, and a projection of the site from the reference image onto the target image is calculated from said epipolar geometry.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: July 15, 2014
    Assignee: UCL Business PLC
    Inventors: Mingxing Hu, Baptiste Allain, David Hawkes, Sebastien Ourselin, Laurence Lovat, Richard Cook
  • Publication number: 20120219185
    Abstract: An apparatus and a computer-implemented method are provided for determining a location in a target image (T) of a site on a surface of a physical object using two or more reference images (I1, I2) of said physical object that have been obtained with a reference imaging device. Each of said two or more reference images includes said site on the surface of the physical object and was obtained with the reference imaging device having a different position and/or orientation relative to said physical object. The target image is obtained by a target imaging device and includes the site on the surface of the physical object. For each reference image, a set of feature mappings from the reference image to the target image is used to determine the epipolar geometry between the reference image and the target image, and a projection of the site from the reference image onto the target image is calculated from said epipolar geometry.
    Type: Application
    Filed: September 1, 2010
    Publication date: August 30, 2012
    Applicant: UCL BUSINESS PLC
    Inventors: Mingxing Hu, Baptiste Allain, David Hawkes, Sebastien Ourselin, Laurence Lovat, Richard Cook
  • Patent number: 8177786
    Abstract: A hip screw assembly for fixation of a fractured femur is provided. The hip screw assembly includes a screw for engagement with the femur. The hip screw assembly also includes a barrel defining a cavity in the barrel. The barrel is fixedly secured to the plate. The screw including a portion thereof fitted in the cavity of the barrel. The hip screw assembly also includes a stop positionable in the barrel. The stop provides a limit on the movement of said screw in said barrel. The screw and the barrel have a first arrangement between each other in which the screw slides in the cavity of said barrel a first selectable predetermined distance and a second arrangement in which the screw slides a second selectable predetermined distance. The second distance is greater than the first distance.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: May 15, 2012
    Assignee: DePuy Products, Inc.
    Inventors: Matthew V. Leyden, Matthew S. Wallace, Daniel S. Horwitz, George J. Haidukewych, David A. Hawkes, Marc E. Ruhling
  • Patent number: 8025667
    Abstract: A measurement apparatus has a body that includes a reference surface that defines a reference line. The body further includes a first elongate window defining a first measurement line and a first measurement indicia positioned in association with the first elongate window. The first measurement line and the reference line define a first angle having a first magnitude. The first measurement indicia corresponds to the first magnitude.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: September 27, 2011
    Assignee: DePuy Products, Inc.
    Inventors: Stuart R. Grant, Anthony J. Metzinger, David A. Hawkes, Andrew H. Berthusen
  • Publication number: 20090089034
    Abstract: A method, apparatus and computer program code for automatically planning at least a part of a surgical procedure to be carried out on a body part of a patient are described. A virtual model of the body part is provided, in which the model has data associated with it representing at least a part of a planned surgical procedure. The virtual model is then morphed to the body part using data derived from the patient's real body part thereby also adapting the part of the planned surgical procedure to reflect the anatomy of the patient's real body part.
    Type: Application
    Filed: August 30, 2007
    Publication date: April 2, 2009
    Inventors: Graeme Penney, Dean Barratt, David Hawkes, Michal Slomczykowski
  • Publication number: 20090088768
    Abstract: A measurement apparatus has a body that includes a reference surface that defines a reference line. The body further includes a first elongate window defining a first measurement line and a first measurement indicia positioned in association with the first elongate window. The first measurement line and the reference line define a first angle having a first magnitude. The first measurement indicia corresponds to the first magnitude.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Applicant: DePuy Products, Inc.
    Inventors: Stuart R. Grant, Anthony J. Metzinger, David A. Hawkes, Andrew H. Berthusen
  • Publication number: 20090088767
    Abstract: An assembly includes a guide component having (i) a base defining a first passageway, and (ii) a handle attached to the base, the base including a first coupling component. The assembly further includes a first sheath defining a second passageway, the first sheath including a second coupling component configured to cooperate with the first coupling component to couple the first sheath to the base. The first passageway is aligned with the second passageway when the first sheath is coupled to the base. The assembly further includes a stop structure defining a central passage, the stop structure including an external surface having a plurality of keyways defined therein. The first sheath includes a key member configured to be selectively received in any one of the plurality of keyways. The stop structure is fixed in relation to the first sheath when the key member is positioned in any one of the plurality of keyways.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Applicant: DePuy Products, Inc.
    Inventors: Matthew V. Leyden, Aaron J. Bisek, David A. Hawkes, Marc E. Ruhling, Jeffrey B. Waffensmith, Matthew S. Wallace