Title:
METHODS OF DEPOSITING DISCRETE HYDROXYAPATITE REGIONS ON MEDICAL IMPLANTS
Document Type and Number:
WIPO Patent Application WO/2011/049915
Kind Code:
A3
Abstract:
A method for electrochemically depositing discrete regions of calcium phosphate onto a medical implant. The method includes providing an implant including at least one area having a metallic surface. At least a portion of the metallic surface is contacted with an electrolyte solution comprising calcium ions and phosphate ions. The metallic surface is used as a cathode, and an electrical potential is applied between the cathode and the electrolyte solution. The electrical potential is applied with a constant current density of from about 10 to about 50 mA/cm2 for a period of time of from about 1 to about 20 minutes. A plurality of discrete regions of needle-shaped hydroxyapatite crystals are electrochemically deposited onto the metallic surface.
Inventors:
GUPTA GAUTAM (US)
SEWING ANDREAS (DE)
SEWING ANDREAS (DE)
Application Number:
PCT/US2010/053138
Publication Date:
January 03, 2013
Filing Date:
October 19, 2010
Export Citation:
Assignee:
BIOMET MFG CORP (US)
GUPTA GAUTAM (US)
SEWING ANDREAS (DE)
GUPTA GAUTAM (US)
SEWING ANDREAS (DE)
International Classes:
C25D5/48; C25D5/18; C25D9/08
Domestic Patent References:
WO1998013539A1 | 1998-04-02 | |||
WO2008146113A2 | 2008-12-04 | |||
WO1998009006A1 | 1998-03-05 |
Foreign References:
US6764769B2 | 2004-07-20 | |||
US5310464A | 1994-05-10 | |||
DE10158302A1 | 2002-07-25 | |||
US20020084194A1 | 2002-07-04 |
Attorney, Agent or Firm:
SUTER, David L. et al. (Dickey & Pierce P.L.C.,P.O. Box 82, Bloomfield Hills Michigan, US)
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