Patents by Inventor STEPHANIE M. DERUNTZ

STEPHANIE M. DERUNTZ 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).

  • Prosthesis with surfaces having different textures and method of making the prosthesis
    Patent number: 9101476
    Abstract: A joint prosthesis system is suitable for cementless fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: August 11, 2015
    Assignee: DEPUY (IRELAND)
    Inventors: Stephanie M. Deruntz, Daren L. Deffenbaugh, Hengda D. Liu, Andrew J. Martin, Jeffrey A. Rybolt, Bryan J. Smith, Anthony D. Zannis
  • PROSTHESIS WITH SURFACES HAVING DIFFERENT TEXTURES AND METHOD OF MAKING THE PROSTHESIS
    Publication number: 20110029092
    Abstract: A joint prosthesis system is suitable for cemented fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.
    Type: Application
    Filed: October 14, 2010
    Publication date: February 3, 2011
    Applicant: DEPUY PRODUCTS, INC.
    Inventors: STEPHANIE M. DERUNTZ, DAREN L. DEFFENBAUGH, HENGDA D. LIU, ANDREW J. MARTIN, JEFFREY A. RYBOLT, BRYAN J. SMITH, ANTHONY D. ZANNIS
  • KNEE PROSTHESIS KIT WITH WINGED SLEEVES AND MILLING GUIDE
    Publication number: 20100114323
    Abstract: A knee prosthesis kit includes single-winged and double-winged metaphyseal sleeve components. A milling guide and reamers in the kit allow for a cavity to be prepared to receive the metaphyseal sleeve components by pivoting one of the reamers on a portion of the milling guide. The instruments allow the cavity to be aligned with the intramedullary canal regardless of the relative hardness of the bone in the vicinity of the cavity.
    Type: Application
    Filed: October 15, 2009
    Publication date: May 6, 2010
    Applicant: DEPUY PRODUCTS, INC.
    Inventors: STEPHANIE M. DERUNTZ, Brian D. Haas, George J. Haidukewych, Jeffery L. Koenemann, Timothy G. Vendrely