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US 9,840,798 B2Granted
Thin film metallic glass coated needle
AssigneeNational Taiwan University of Science and Technology
InventorsJinn Chu, Yusuke Tanatsugu, Chia-Chi Yu, Chia-Lin Li
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Abstract
A thin film metallic glass coated needle includes a needle body, a needle head and a thin film metallic glass in amorphous structure and formed on a surface of the needle head and a surface of the needle body to reduce a surface energy and coefficient of friction. The thin film metallic glass is a titanium based comprising 35-45 at % titanium, 5-15 at % zirconium, 32-42 at % copper, 1-11 at % niobium and 2-12 at % cobalt.
Claims6
A medical injection needle coated with a thin film metallic glass, comprising:
- a needle body;
- a needle head;
- and
- a thin film metallic glass being of amorphous structure and formed on a surface of the needle head and a surface of the needle body, wherein the thin film metallic glass is a titanium-based thin film metallic glass comprising 35-45 at. % titanium, 5-15 at. % zirconium, 32-42 at. % copper, 1-11 at. % niobium and 2-12 at. % cobalt, wherein the thin film metallic glass has a surface energy of 26.9 mN/m and coefficient of friction of 0.07.
1 more element
Dependencies are inferred from the claim text.