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Surface Treated Shape Memory Materials And Methods For Making Same

Summary

The Invention Provides A Method For Making Surface Treated Shape Memory Materials Such As From Niti Alloy Using Plasma Immersion Ion Implantation And Deposition And Related Ion-Beam And Plasma-Based Techniques To Alter The Surface Properties Of Those Materials Primarily For Biomedical Applications. The Surfaces Are Treated With Nitrogen, Oxygen, And Carbon, But Become Bio-Inactive After Implanted With Other Elements Such As Silicon.

Supplementary Information

Patent Number: US7803234B2
Application Number: US2006331264A
Inventor: Yeung, Kelvin W. K. | Poon, Ray W. Y. | Chu, Paul Kim-Ho | Cheung, Kenneth M. C. | Lu, William W.
Priority Date: 13 Jan 2005
Priority Number: US7803234B2
Application Date: 11 Jan 2006
Publication Date: 28 Sep 2010
IPC Current: C23C000836
US Class: 148239 | 427539
Assignee Applicant: Versitech Limited | City The University of Hong Kong
Title: Surface treated shape memory materials and methods for making same
Usefulness: Surface treated shape memory materials and methods for making same
Summary: For altering surface composition of nickel titanium alloy portion for orthopedic implant, vascular implant and esophageal implant (all claimed).
Novelty: Alteration of surface composition of nickel titanium alloy portion for vascular implant, involves implanting nitrogen, oxygen or carbon on surface of alloy portion by preset method

Industry

Biomedical

Sub Group

Medical Implant

Application No.

US2006331264A

Country/Region

Hong Kong

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