US2006110607A1PendingUtilityA1

Aluminum oxide ceramics with hydroxyapatite

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Assignee: ANDERSCH HANSPriority: Dec 21, 1999Filed: Oct 18, 2005Published: May 25, 2006
Est. expiryDec 21, 2019(expired)· nominal 20-yr term from priority
Inventors:Hans AnderschWolfgang BurgerHerbert RichterGert Richter
A61L 27/32A61L 27/42A61F 2310/00796C04B 2111/00836C04B 41/89C23C 14/14A61L 27/105C04B 41/52C04B 41/009B05D 3/12
49
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Claims

Abstract

The invention relates to a method for producing hydroxyapatite coated ceramics components. In a first step of the inventive method the ceramic component is provided with a Ti coating and in a second step a hydroxyapatite is applied to the Ti coating. The invention further relates to hydroxyapatite coated ceramic components produced according to the inventive method.

Claims

exact text as granted — not AI-modified
1 - 14 . (canceled)  
     
     
         15 . A method for the manufacture of an hydroxyapatite coated ceramic component, comprising coating a ceramic component with a titanium coating comprising at least one of titanium or TiAl6V4 alloy and applying hydroxyapatite to the titanium coating to produce the hydroxyapatite coated ceramic component, wherein the titanium coating is from 1 to 5 microns thick.  
     
     
         16 . A method according to  claim 15 , further comprising roughening a surface of the ceramic component before coating with titanium.  
     
     
         17 . A method according to  claim 15 , wherein said titanium coating is rough.  
     
     
         18 . A method according to  claim 15 , wherein said titanium coating is adjusted to a roughness of R a ≈40 to 50 μm.  
     
     
         19 . A method according to  claim 15 , wherein said titanium coating is deposited onto a surface of the ceramic component by a PVD process.  
     
     
         20 . A method according to  claim 15 , wherein said titanium coating comprises TiAl6V4 alloy and is applied to said ceramic component by a PVD process.  
     
     
         21 . A method according to  claim 15 , wherein said titanium coating is 5 micron thick.  
     
     
         22 . A method according to  claim 15 , wherein said hydroxyapatite is applied onto the Ti or TiAl6V4 coating by spraying  
     
     
         23 . A method according to  claim 15 , wherein said hydroxyapatite is applied to the Ti or TiAl6V4 coating by plasma coating.  
     
     
         24 . A method according to  claim 15 , wherein said ceramic component is an aluminum oxide ceramic.  
     
     
         25 . A method according to  claim 15 , wherein said ceramic component is for medical use.  
     
     
         26 . A method according to  claim 15 , wherein said ceramic component is a prosthesis.  
     
     
         27 . A method according to  claim 15 , wherein said titanium coating is 1 micron thick.  
     
     
         28 . A hydroxyapatite coated ceramic component prepared according to the method of  claim 15.

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