| 54 |
Title |
TI |
[EN] PEO COATING ON MG SCREWS |
| 71/73 |
Applicant/owner |
PA |
DINGELDEIN ELVIRA, US
;
ELIEZER AMIR, IL
;
GASQUERES CYRILLE, DE
;
HEIMANN LYDIA, DE
;
WOLFSTADTER MARCO, DE
|
| 72 |
Inventor |
IN |
DINGELDEIN ELVIRA, US
;
ELIEZER AMIR, IL
;
GASQUERES CYRILLE, DE
;
HEIMANN LYDIA, DE
;
WOLFSTADTER MARCO, DE
|
| 22/96 |
Application date |
AD |
Jul 15, 2011 |
| 21 |
Application number |
AN |
201113183864 |
|
Country of application |
AC |
US |
|
Publication date |
PUB |
Jun 14, 2012 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
US
36497010
20100716
|
| 51 |
IPC main class |
ICM |
A61F 2/02
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
C25D 11/00
(2006.01)
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
A61L 2400/18
A61L 2420/02
A61L 31/022
A61L 31/086
A61L 31/148
C25D 11/024
C25D 11/026
C25D 11/30
|
|
MCD main class |
MCM |
A61F 2/02
(2006.01)
|
|
MCD secondary class |
MCS |
C25D 11/00
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] The present invention relates generally to a bio-degradable implant based on magnesium having a reduced corrosion rate and to a method for the production of such an implant. It is a a method for treating a surface of a bio-degradable metallic implant comprising the following steps: providing a dispersed system comprising a colloid-dispersed apatite and adding an apatite powder to the dispersed system, subjecting an implant to the dispersed system such that a surface of the implant which is to be treated is immersed in the dispersed system wherein the implant comprises a magnesium based alloy, applying an AC voltage difference between the implant as a first electrode and a second electrode positioned in the dispersed system for generating a plasma electrolytic oxidation on the immersed surface of the implant so that the immersed surface is converted to an oxide film which is at least partially covered by apatites formed by the colloid-dispersed apatite and the apatite powder. The evolution of corrosion induced hydrogen gas evolution is decreased and osseointegration is improved. |
| 56 |
Cited documents identified in the search |
CT |
US000004085010A
US000004172771A
US000004411742A
US000004560666A
US000006254855B1
US020050079088A1
US020050221259A1
US020060024250A1
US020060089715A1
US020070003634A1
US020080086195A1
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
Bard and Faulkner, Electrochemical Methods Fundamentals and Applications, 20 (2d ed. 2001). 9
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
A61F 2/02
C25D 11/00
|
