Patents by Inventor Debra J. Treacy

Debra J. Treacy 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).

  • Implantable prostheses with metallic porous bead preforms applied during casting and method of forming the same
    Patent number: 6209621
    Abstract: An implantable prosthesis having porous textured surface regions and methods for making the same provide improved prostheses and prosthesis manufacturing methods. The implantable prostheses contain one more bead preforms that are secured to the metallic prosthesis components during the casting process to form porous textured surface regions in desired areas of the prostheses.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: April 3, 2001
    Assignee: Depuy Orthopaedics, Inc.
    Inventor: Debra J. Treacy
  • Implantable prosthesis with metallic porous bead preforms applied during casting
    Patent number: 6193761
    Abstract: An implantable prosthesis having porous textured surface regions and methods for making the same provide improved prostheses and prosthesis manufacturing methods. The implantable prostheses contain one more bead preforms that are secured to the metallic prosthesis components during the casting process to form porous textured surface regions in desired areas of the prostheses.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: February 27, 2001
    Assignee: Depuy Orthopaedics, Inc.
    Inventor: Debra J. Treacy
  • Composite prosthesis and method of manufacture
    Patent number: 5480449
    Abstract: A process for making a composite stem for a prosthesis by providing a tapered metal core with a predetermined cross section and a composite shell having a tapered cavity having a cross sectional configuration to receive the metal core. Adhesive is applied to the metal core and the core is placed in the cavity and pressure is applied along the axis of the metal core toward the smaller end of the core to force the core against the composite shell and heat is applied with the pressure to bond the composite shell to the metal core.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: January 2, 1996
    Assignee: Johnson & Johnson Orthopaedics, Inc.
    Inventors: John V. Hamilton, Salvatore Caldarise, Debra J. Treacy
  • Composite prosthesis
    Patent number: 5314492
    Abstract: A composite stem for a prosthesis, particularly a hip prosthesis, including a metal core and a fiber reinforced composite shell surrounding the core to provide modulus values that are similar to bone. The composite shell is preferably composed of braided fibers and a thermoplastic resin. The stiffness of the prosthesis can be varied along the length of the stem. The metal core contributing between 5 and 25 percent of the total flexural stiffness of the stem.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: May 24, 1994
    Assignee: Johnson & Johnson Orthopaedics, Inc.
    Inventors: John V. Hamilton, Salvatore Caldarise, Debra J. Treacy
  • High purity copper alkoxides
    Patent number: 5142074
    Abstract: The invention relates to the preparation of high purity, chloride- and alkali metal-free copper (II) alkoxides by means of the reaction of an alcoholic alkali metal alkoxide solution with copper (II) fluoride; ammoniating the resulting solution to render soluble the resulting copper (II) alkoxide; and filtering the resulting solution to obtain an alkali metal- and chloride-free alcoholic copper (II) alkoxide solution. The resulting solution is useful in the preparation of superconducting compound such as yttrium-barium-copper oxide superconductor.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: August 25, 1992
    Assignee: General Atomics
    Inventors: Debra J. Treacy, Khodabakhsh S. Mazdiyasni
  • Manufacture of high purity superconducting ceramic
    Patent number: 5135907
    Abstract: A method for the manufacture of superconducting polycrystalline ceramic materials by the decomposition of a mixture of isopropoxides.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: August 4, 1992
    Assignee: General Atomics
    Inventors: Khodabakhsh S. Mazdiyasni, Debra J. Treacy, Barry W. McQuillan, Frederick H. Elsner
  • Preparation of copper alkoxides and sol/gel precursors of superconducting ceramics
    Patent number: 5006508
    Abstract: The invention relates to the preparation of high purity, chloride- and alkali metal-free copper (II) alkoxides by means of the reaction of an alcoholic alkali metal alkoxide solution with copper (II) fluoride; ammoniating the resulting solution to render soluble the resulting copper (II) alkoxide; and filtering the resulting solution to obtain an alkali metal- and chloride-free alcoholic copper (II) alkoxide solution. The resulting solution is useful in the preparation of superconducting compound such as yttrium-barium-copper oxide superconductor.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: April 9, 1991
    Assignee: General Atomics
    Inventors: Debra J. Treacy, Khodabakhsh S. Mazdiyasni