Surface Treated Shape Memory Materials And Methods For Making Same
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.
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
生物医学
医疗植入
香港
