US2013189905A1PendingUtilityA1

Method for improving the strength characteristics of orthopedic prostheses

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Assignee: TONI ALDOPriority: Sep 28, 2010Filed: Aug 2, 2011Published: Jul 25, 2013
Est. expirySep 28, 2030(~4.1 yrs left)· nominal 20-yr term from priority
Inventors:Aldo ToniPatrizio Cremascoli
A61F 2/3094B24B 1/04Y10T29/479A61F 2/30767A61F 2002/30922B24C 1/10
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Claims

Abstract

A method for improving the strength characteristics of orthopedic prostheses, such as femur necks, femoral stems, cotyloid elements, systems of the spinal column, including the step of: starting from a prosthesis made of metal, subjecting the prosthesis to a peening treatment to improve the surface hardness of the prosthesis and eliminate micro-scoring caused by the machining of machine tools, the method further including a subsequent step of performing a surface finishing treatment by vibration finishing.

Claims

exact text as granted — not AI-modified
1 - 8 . (canceled) 
     
     
         9 . A method for improving the strength characteristics of orthopedic prostheses, such as femur necks, femoral stems, cotyloid elements, systems of the spinal column and the like, comprising the step of:
 starting from a prosthesis made of metal, subjecting said prosthesis to a peening treatment to improve the surface hardness of the prosthesis and eliminate micro-scoring caused by the machining of machine tools,   further comprising a subsequent step of performing a surface finishing treatment by vibration finishing.   
     
     
         10 . The method according to  claim 9 , wherein said vibration finishing treatment is performed by subjecting said prosthesis to repeated collisions with abrasive means. 
     
     
         11 . The method according to  claim 10 , wherein said abrasive means are polyester means. 
     
     
         12 . The method according to  claim 9 , further comprising a subsequent polishing step. 
     
     
         13 . The method according to  claim 12 , wherein said polishing step is provided by way of nonabrasive porcelain means. 
     
     
         14 . The method according to  claim 12 , wherein said polishing step is provided by means of a circular vibration machine. 
     
     
         15 . The method according to  claim 9 , wherein said prosthesis is made of titanium. 
     
     
         16 . The method according to  claim 9 , wherein said peening treatment is provided by means of shot selected from metal, ceramics, glass or other material.

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