Thin film metallic glass coated needle

US9840798B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9840798-B2
Application numberUS-201514919749-A
CountryUS
Kind codeB2
Filing dateOct 22, 2015
Priority dateMay 15, 2015
Publication dateDec 12, 2017
Grant dateDec 12, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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.

First claim

Opening claim text (preview).

What is claimed is: 1. 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. 2. The medical injection needle coated with thin film metallic glass of claim 1 , wherein the needle body has a tube, and a surface of the tube is coated with the thin film metallic glass. 3. The medical injection needle coated with thin film metallic glass of claim 2 , wherein a material of the needle body is selected from a system consisting of titanium, titanium alloy, aluminium, aluminium alloy, copper, copper alloy, iron, iron alloy, gold, gold alloy and steel. 4. The medical injection needle coated with thin film metallic glass of claim 1 , wherein the thin film metallic glass has a chemical formula of Ti 40 Zr 10 Cu 37 Nb 7 Co 7 . 5. The medical injection needle coated with thin film metallic glass of claim 4 , wherein the thin film metallic glass has a hardness larger than 700 HV. 6. The medical injection needle coated with thin film metallic glass of claim 4 , wherein the thin metallic glass film has a thickness ranging from 50 nm to 200 nm.

Assignees

Inventors

Classifications

  • Methods of manufacturing · CPC title

  • D05B85/12Primary

    Coated needles · CPC title

  • characterised by features of the needle shaft · CPC title

  • Needles, e.g. needle tip configurations · CPC title

  • low friction (A61B2017/00853 takes precedence) · CPC title

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What does patent US9840798B2 cover?
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 % n…
Who is the assignee on this patent?
Univ Nat Taiwan Science & Technology
What technology area does this patent fall under?
Primary CPC classification D05B85/12. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Dec 12 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).