Patents by Inventor William Duffield

William Duffield 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: 20240091023
    Abstract: An intervertebral implant may include an anterior plate forming a first monolithic structure defining a first end of the implant, and including at least two screw holes each configured to receive a bone screw; and a plurality of coils extending from the anterior plate about a periphery of the implant. The screw holes may be angled such that, when the implant is inserted between two adjacent vertebrae, bone screws are guided into the adjacent vertebrae.
    Type: Application
    Filed: November 28, 2023
    Publication date: March 21, 2024
    Inventors: Robert Morris, William Duffield, Edward McShane, Megan A. Stauffer
  • Patent number: 11826261
    Abstract: An intervertebral implant may include an anterior plate forming a first monolithic structure defining a first end of the implant, and including at least two screw holes each configured to receive a bone screw; and a plurality of coils extending from the anterior plate about a periphery of the implant. The screw holes may be angled such that, when the implant is inserted between two adjacent vertebrae, bone screws are guided into the adjacent vertebrae.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 28, 2023
    Assignee: Institute for Musculoskeletal Science and Education, Ltd.
    Inventors: Robert Morris, William Duffield, Edward McShane, Megan Stauffer
  • Patent number: 11819419
    Abstract: An implant may include a body having a leading edge portion, a trailing edge portion, and an intermediate portion. The leading edge portion may include a substantially smooth surface forming a substantial majority of a leading edge surface and the trailing edge portion may include a monolithic structure including at least one receptacle configured to receive an insertion tool. The intermediate portion may include a plurality of elongate curved structural members continuously formed with at least one of the leading edge portion and the trailing edge portion. In addition, the elongate curved structural members may be configured such that the intermediate portion remains substantially rigid under compressive forces during insertion of the implant between bone surfaces of a patient. Also, the elongate curved structural members may include an elongate curved structural member extending longitudinally from the leading edge portion to the trailing edge portion and having a substantially sinusoidal configuration.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: November 21, 2023
    Assignee: Institute for Musculoskeletal Science and Education, Ltd.
    Inventors: Rami Hamzey, Robert Morris, William Duffield, Edward J. McShane, III, Megan A. Stauffer, Mathew Gordon, Joseph M. Nyahay
  • Patent number: 11684490
    Abstract: An implant includes a body and a bone fixation system. The body includes an interior area disposed between a superior surface and an opposite inferior surface spaced from the superior surface in a vertical direction. In addition, the bone fixation system includes at least one blade disposed within the interior area of the body in an insertion position. Also, the bone fixation system further includes at least one strike plate engaging the at least one blade in the interior area of the body, the at least one strike plate being configured to move the at least one blade from the insertion position to an impaction position in which at least a portion of the blade protrudes past one of the superior surface and inferior surface of the body.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: June 27, 2023
    Assignee: Institute for Musculoskeletal Science and Education, Ltd.
    Inventors: William Duffield, Katherine Elizabeth Brown, James A. Sack
  • Patent number: 11331203
    Abstract: A multi-component implant insertion system for insertion of an intervertebral implant cage and methods of use thereof are described herein. Preferably, the proximal end of a hollow jaw is inserted into the distal end of an inserter. Once inside the inserter, a thread on the jaw engages a corresponding thread inside the inserter, allowing axial advancement of the jaw along the inserter. A ram is inserted through the proximal end of the jaw until the distal end of the ram protrudes at the distal end of the inserter assembly. Optionally, an adjustable stop introduced onto the superior portion of the inserter allows for control over the depth of insertion of the implant. An implant of appropriate size is introduced to the jaw of the inserter assembly and the implant/inserter assembly can be impacted into the vertebral body until the adjustable stop contacts the anterior edge of the vertebral body.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: May 17, 2022
    Assignee: Institute For Musculoskeletal Science and Education, Ltd.
    Inventors: William Duffield, James A. Sack
  • Publication number: 20210307909
    Abstract: An implant includes a body including a substrate and a bone interfacing lattice disposed on the substrate. The bone interfacing lattice includes at least two layers of elongate curved structural members. In addition, the at least two layers of elongate curved structural members include a first layer adjacent the substrate and a second layer adjacent the first layer. Also, the first layer has a first deformability and the second layer has a second deformability, wherein the second deformability is greater than the first deformability. Further, one or more of the elongate curved structural members may have a spiraling geometry.
    Type: Application
    Filed: June 14, 2021
    Publication date: October 7, 2021
    Inventors: Rami Hamzey, Robert Morris, William Duffield, Mathew Gordon, Edward J. McShane, III, Joseph M. Nyahay
  • Patent number: 11033394
    Abstract: An implant includes a body including a substrate and a bone interfacing lattice disposed on the substrate. The bone interfacing lattice includes at least two layers of elongate curved structural members. In addition, the at least two layers of elongate curved structural members include a first layer adjacent the substrate and a second layer adjacent the first layer. Also, the first layer has a first deformability and the second layer has a second deformability, wherein the second deformability is greater than the first deformability.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: June 15, 2021
    Assignee: INSTITUTE FOR MUSCULOSKELETAL SCIENCE AND EDUCATION, LTD.
    Inventors: Rami Hamzey, Robert Morris, William Duffield, Mathew Gordon, Edward J. McShane, III, Joseph M. Nyahay
  • Publication number: 20200253746
    Abstract: An implant includes a body and a bone fixation system. The body includes an interior area disposed between a superior surface and an opposite inferior surface spaced from the superior surface in a vertical direction. In addition, the bone fixation system includes at least one blade disposed within the interior area of the body in an insertion position. Also, the bone fixation system further includes at least one strike plate engaging the at least one blade in the interior area of the body, the at least one strike plate being configured to move the at least one blade from the insertion position to an impaction position in which at least a portion of the blade protrudes past one of the superior surface and inferior surface of the body.
    Type: Application
    Filed: January 6, 2020
    Publication date: August 13, 2020
    Inventors: William Duffield, Katherine Elizabeth Brown, James A. Sack
  • Publication number: 20200188120
    Abstract: An implant may include a body having a leading edge portion, a trailing edge portion, and an intermediate portion. The leading edge portion may include a substantially smooth surface forming a substantial majority of a leading edge surface and the trailing edge portion may include a monolithic structure including at least one receptacle configured to receive an insertion tool. The intermediate portion may include a plurality of elongate curved structural members continuously formed with at least one of the leading edge portion and the trailing edge portion. In addition, the elongate curved structural members may be configured such that the intermediate portion remains substantially rigid under compressive forces during insertion of the implant between bone surfaces of a patient. Also, the elongate curved structural members may include an elongate curved structural member extending longitudinally from the leading edge portion to the trailing edge portion and having a substantially sinusoidal configuration.
    Type: Application
    Filed: October 21, 2019
    Publication date: June 18, 2020
    Inventors: Rami Hamzey, Robert Morris, William Duffield, Edward J. McShane, III, Megan A. Stauffer, Mathew Gordon, Joseph M. Nyahay
  • Patent number: 10555818
    Abstract: Intervertebral spinal fusion implants for interbody fusion of the anterior column of the spine are described. The implants have a substantially bi-convex or a substantially offset bi-convex shape. The implants are placed through a transforaminal or posterior approach at an oblique insertion angle. The implants have an outermost point on the superior convex surface and an outermost point on the inferior convex surface and four edges of differing heights. The outermost superior and inferior points of the implants are connected with the four edges with convex surfaces of different curvatures. The curvatures of the convex surfaces of the implants are designed to match the curvatures of concave vertebral surfaces when the implants are inserted at an oblique insertion angle.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: February 11, 2020
    Assignee: Institute For Musculoskeletal Science and Education, Ltd.
    Inventors: Jeffrey R. McConnell, William Duffield
  • Publication number: 20200038197
    Abstract: An intervertebral implant may include an anterior plate forming a first monolithic structure defining a first end of the implant, and including at least two screw holes each configured to receive a bone screw; and a plurality of coils extending from the anterior plate about a periphery of the implant. The screw holes may be angled such that, when the implant is inserted between two adjacent vertebrae, bone screws are guided into the adjacent vertebrae.
    Type: Application
    Filed: October 4, 2019
    Publication date: February 6, 2020
    Inventors: Robert Morris, William Duffield, Edward McShane, Megan Stauffer
  • Patent number: 10524930
    Abstract: An implant includes a body and a bone fixation system. The body includes an interior area disposed between a superior surface and an opposite inferior surface spaced from the superior surface in a vertical direction. In addition, the bone fixation system includes at least one blade disposed within the interior area of the body in an insertion position. Also, the bone fixation system further includes at least one strike plate engaging the at least one blade in the interior area of the body, the at least one strike plate being configured to move the at least one blade from the insertion position to an impaction position in which at least a portion of the blade protrudes past one of the superior surface and inferior surface of the body. Further, the at least one blade has a substantially U-shaped cross-sectional shape in a horizontal plane substantially perpendicular to the vertical direction.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: January 7, 2020
    Assignee: Institute for Musculoskeletal Science and Education, Ltd.
    Inventors: William Duffield, Katherine Elizabeth Brown, James A. Sack
  • Publication number: 20190343657
    Abstract: A multi-component implant insertion system for insertion of an intervertebral implant cage and methods of use thereof are described herein. Preferably, the proximal end of a hollow jaw is inserted into the distal end of an inserter. Once inside the inserter, a thread on the jaw engages a corresponding thread inside the inserter, allowing axial advancement of the jaw along the inserter. A ram is inserted through the proximal end of the jaw until the distal end of the ram protrudes at the distal end of the inserter assembly. Optionally, an adjustable stop introduced onto the superior portion of the inserter allows for control over the depth of insertion of the implant. An implant of appropriate size is introduced to the jaw of the inserter assembly and the implant/inserter assembly can be impacted into the vertebral body until the adjustable stop contacts the anterior edge of the vertebral body.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: William Duffield, James A. Sack
  • Patent number: 10449051
    Abstract: An implant includes a body having a leading edge portion, a trailing edge portion, and an intermediate portion extending between the leading edge portion and the trailing edge portion. The leading edge portion includes a substantially smooth surface forming a substantial majority of a leading edge surface of the leading edge portion. The trailing edge portion includes a monolithic structure including at least one receptacle configured to receive an insertion tool. In addition, the intermediate portion includes a plurality of elongate curved structural members.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 22, 2019
    Assignee: Institute for Musculoskeletal Science and Education, Ltd.
    Inventors: Rami Hamzey, Robert Morris, William Duffield, Edward J. McShane, III, Megan A. Stauffer, Mathew Gordon, Joseph M. Nyahay
  • Patent number: 10433979
    Abstract: An implant includes an anterior plate defining a first end of the implant and a posterior plate defining a second end of the implant opposite the first end of the implant. The implant also includes a central support portion extending between the anterior plate and the posterior plate. The implant further includes a side wall extending between the anterior plate and the posterior plate and defining a portion of the outside perimeter of the implant; a first exterior arced member disposed proximate the side wall and the posterior plate; and a first interior arced member is disposed proximate the central support member and the posterior plate. The exterior arced member and the interior arced member curve in a superior direction such that portions of the exterior and interior arced members form portions of a bone contacting superior surface of the implant.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 8, 2019
    Assignee: Institute of Musculoskeletal Science and Education, Ltd.
    Inventors: Robert Morris, William Duffield, Edward McShane, Megan Stauffer
  • Patent number: 10398573
    Abstract: A multi-component implant insertion system for insertion of an intervertebral implant cage and methods of use thereof are described herein. Preferably, the proximal end of a hollow jaw is inserted into the distal end of an inserter. Once inside the inserter, a thread on the jaw engages a corresponding thread inside the inserter, allowing axial advancement of the jaw along the inserter. A ram is inserted through the proximal end of the jaw until the distal end of the ram protrudes at the distal end of the inserter assembly. Optionally, an adjustable stop introduced onto the superior portion of the inserter allows for control over the depth of insertion of the implant. An implant of appropriate size is introduced to the jaw of the inserter assembly and the implant/inserter assembly can be impacted into the vertebral body until the adjustable stop contacts the anterior edge of the vertebral body.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: September 3, 2019
    Assignee: Institute For Musculoskeletal Science And Education, Ltd.
    Inventors: William Duffield, James A. Sack
  • Publication number: 20190038433
    Abstract: An implant includes a body and a bone fixation system. The body includes an interior area disposed between a superior surface and an opposite inferior surface spaced from the superior surface in a vertical direction. In addition, the bone fixation system includes at least one blade disposed within the interior area of the body in an insertion position. Also, the bone fixation system further includes at least one strike plate engaging the at least one blade in the interior area of the body, the at least one strike plate being configured to move the at least one blade from the insertion position to an impaction position in which at least a portion of the blade protrudes past one of the superior surface and inferior surface of the body. Further, the at least one blade has a substantially U-shaped cross-sectional shape in a horizontal plane substantially perpendicular to the vertical direction.
    Type: Application
    Filed: January 31, 2018
    Publication date: February 7, 2019
    Inventors: William Duffield, Katherine Elizabeth Brown, James A. Sack
  • Publication number: 20180296347
    Abstract: An implant includes a body having a leading edge portion, a trailing edge portion, and an intermediate portion extending between the leading edge portion and the trailing edge portion. The leading edge portion includes a substantially smooth surface forming a substantial majority of a leading edge surface of the leading edge portion. The trailing edge portion includes a monolithic structure including at least one receptacle configured to receive an insertion tool. In addition, the intermediate portion includes a plurality of elongate curved structural members.
    Type: Application
    Filed: October 23, 2017
    Publication date: October 18, 2018
    Inventors: Rami Hamzey, Robert Morris, William Duffield, Edward J. McShane, III, Megan A. Stauffer, Mathew Gordon, Joseph M. Nyahay
  • Publication number: 20180296350
    Abstract: An implant includes a body including a substrate and a bone interfacing lattice disposed on the substrate. The bone interfacing lattice includes at least two layers of elongate curved structural members. In addition, the at least two layers of elongate curved structural members include a first layer adjacent the substrate and a second layer adjacent the first layer. Also, the first layer has a first deformability and the second layer has a second deformability, wherein the second deformability is greater than the first deformability.
    Type: Application
    Filed: October 23, 2017
    Publication date: October 18, 2018
    Inventors: Rami Hamzey, Robert Morris, William Duffield, Mathew Gordon, Edward J. McShane, III, Joseph M. Nyahay
  • Publication number: 20180221166
    Abstract: An implant includes an anterior plate defining a first end of the implant and a posterior plate defining a second end of the implant opposite the first end of the implant. The implant also includes a central support portion extending between the anterior plate and the posterior plate. The implant further includes a side wall extending between the anterior plate and the posterior plate and defining a portion of the outside perimeter of the implant; a first exterior arced member disposed proximate the side wall and the posterior plate; and a first interior arced member is disposed proximate the central support member and the posterior plate. The exterior arced member and the interior arced member curve in a superior direction such that portions of the exterior and interior arced members form portions of a bone contacting superior surface of the implant.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 9, 2018
    Inventors: Robert Morris, William Duffield, Edward McShane, Megan Stauffer