Patents by Inventor Weidong Tong

Weidong Tong 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: 20240024535
    Abstract: An orthopedic implant having a metal surface and a calcium phosphate layer disposed on at least part of the metal surface is described. The calcium phosphate layer has an average crystallite size of less than about 100 nm in at least one direction and dissolves for more than 2 hours in vitro. The calcium phosphate layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 25, 2024
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Publication number: 20240009347
    Abstract: An orthopedic implant having a metal surface and a hydroxyapatite layer comprising gallium ions therein disposed on at least part of the metal surface is described. The hydroxyapatite layer has an average crystallite size of less than about 75 nm in at least one direction and dissolves for more than 2 hours in vitro. The hydroxyapatite layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 11, 2024
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Patent number: 11806955
    Abstract: A prosthetic orthopaedic component includes a porous three dimensional structure. The porous three dimensional structure includes post-manufacture residual particles that are to be removed. Methods are therefore disclosed for removing the residual particles and analyzing the particles.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: November 7, 2023
    Inventors: Weidong Tong, Mahdieh Aghazadeh, Christopher B. Anderson, Christine L. Douglas
  • Patent number: 11793907
    Abstract: An orthopedic implant having a metal surface and a hydroxyapatite layer comprising gallium ions therein disposed on at least part of the metal surface is described. The hydroxyapatite layer has an average crystallite size of less than about 75 nm in at least one direction and dissolves for more than 2 hours in vitro. The hydroxyapatite layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: October 24, 2023
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Patent number: 11793910
    Abstract: An orthopedic implant having a metal surface and a calcium phosphate layer disposed on at least part of the metal surface is described. The calcium phosphate layer has an average crystallite size of less than about 100 nm in at least one direction and dissolves for more than 2 hours in vitro. The calcium phosphate layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: October 24, 2023
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Publication number: 20230071706
    Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.
    Type: Application
    Filed: November 15, 2022
    Publication date: March 9, 2023
    Inventors: Weidong Tong, Andrew T. Rosenberger, Robert J. Kane, Bryan J. Smith, Luke C. Ice, Fionnán Aodhán McNamara, Edward Patrick Kavanagh
  • Patent number: 11517438
    Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: December 6, 2022
    Inventors: Weidong Tong, Andrew T. Rosenberger, Robert J. Kane, Bryan J. Smith, Luke C. Ice, Fionnán Aodhán McNamara, Edward Patrick Kavanagh
  • Publication number: 20220323225
    Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.
    Type: Application
    Filed: June 20, 2022
    Publication date: October 13, 2022
    Inventors: Weidong Tong, Andrew T. Rosenberger, Robert J. Kane, Bryan J. Smith, Luke C. Ice, Fionnán A. McNamara, Edward Patrick Kavanagh
  • Patent number: 11364123
    Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: June 21, 2022
    Inventors: Weidong Tong, Andrew T. Rosenberger, Robert J. Kane, Bryan J. Smith, Luke C. Ice, Fionnán Aodhán McNamara, Edward Patrick Kavanagh
  • Publication number: 20220175536
    Abstract: An orthopaedic prosthetic component comprises a fixation peg including a porous three-dimensional structure configured to permit bone in-growth. The porous three-dimensional structure has an outer surface boundary. The fixation peg includes a plate attached to the porous three-dimensional structure at the outer surface boundary. The plate includes a tapered body having an outer wall that faces away from the porous three-dimensional structure and is devoid of any openings.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Inventors: Abraham P. Wright, Nicholas A. Miltner, Weidong Tong, Tyler S. Boggs, Bryan J. Smith
  • Publication number: 20220117742
    Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.
    Type: Application
    Filed: January 4, 2022
    Publication date: April 21, 2022
    Inventors: Weidong Tong, Andrew T. Rosenberger, Robert J. Kane, Bryan J. Smith, Luke C. Ice, Fionnán A. McNamara, Edward Patrick Kavanagh
  • Patent number: 11278412
    Abstract: An orthopaedic prosthetic component comprises a fixation peg including a porous three-dimensional structure configured to permit bone in-growth. The porous three-dimensional structure has an outer surface boundary. The fixation peg includes a plate attached to the porous three-dimensional structure at the outer surface boundary. The plate includes a tapered body having an outer wall that faces away from the porous three-dimensional structure and is devoid of any openings.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: March 22, 2022
    Inventors: Abraham P. Wright, Nicholas A. Miltner, Weidong Tong, Tyler S. Boggs, Bryan J. Smith
  • Publication number: 20210402055
    Abstract: An orthopedic implant having a metal surface and a hydroxyapatite layer comprising gallium ions therein disposed on at least part of the metal surface is described. The hydroxyapatite layer has an average crystallite size of less than about 75 nm in at least one direction and dissolves for more than 2 hours in vitro. The hydroxyapatite layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Application
    Filed: September 14, 2021
    Publication date: December 30, 2021
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Patent number: 11141505
    Abstract: An orthopedic implant having a metal surface and a hydroxyapatite layer comprising gallium ions therein disposed on at least part of the metal surface is described. The hydroxyapatite layer has an average crystallite size of less than about 75 nm in at least one direction and dissolves for more than 2 hours in vitro. The hydroxyapatite layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: October 12, 2021
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Publication number: 20210299328
    Abstract: An orthopedic implant having a metal surface and a calcium phosphate layer disposed on at least part of the metal surface is described. The calcium phosphate layer has an average crystallite size of less than about 100 nm in at least one direction and dissolves for more than 2 hours in vitro. The calcium phosphate layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Application
    Filed: June 10, 2021
    Publication date: September 30, 2021
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Publication number: 20210260841
    Abstract: A prosthetic orthopaedic component includes a porous three dimensional structure. The porous three dimensional structure includes post-manufacture residual particles that are to be removed. Methods are therefore disclosed for removing the residual particles and analyzing the particles.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 26, 2021
    Inventors: Weidong Tong, Mahdieh Aghazadeh, Christopher B. Anderson, Christine L. Douglas
  • Patent number: 11058799
    Abstract: An orthopedic implant having a metal surface and a calcium phosphate layer disposed on at least part of the metal surface is described. The calcium phosphate layer has an average crystallite size of less than about 100 nm in at least one direction and dissolves for more than 2 hours in vitro. The calcium phosphate layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 13, 2021
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Publication number: 20210085466
    Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.
    Type: Application
    Filed: September 22, 2020
    Publication date: March 25, 2021
    Inventor: Weidong Tong
  • Publication number: 20200139008
    Abstract: An orthopedic implant having a metal surface and a calcium phosphate layer disposed on at least part of the metal surface is described. The calcium phosphate layer has an average crystallite size of less than about 100 nm in at least one direction and dissolves for more than 2 hours in vitro. The calcium phosphate layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Application
    Filed: December 23, 2019
    Publication date: May 7, 2020
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong
  • Publication number: 20200129662
    Abstract: An orthopedic implant having a metal surface and a hydroxyapatite layer comprising gallium ions therein disposed on at least part of the metal surface is described. The hydroxyapatite layer has an average crystallite size of less than about 75 nm in at least one direction and dissolves for more than 2 hours in vitro. The hydroxyapatite layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Inventors: Rajendra Kasinath, Craig Ernsberger, Stephanie Vass, Steven N. Ginn, Haibo Qu, Weidong Tong