Super-elastic titanium alloy for living body

• US 20050254990A1
• Filed: 04/01/2005
• Published: 11/17/2005
• Est. Priority Date: 04/02/2004
• Status: Abandoned Application

• Current Assignee: Furukawa Techno Material Co., Ltd. (Furukawa Electric Company Limited)
• Original Assignee: Furukawa Techno Material Co., Ltd. (Furukawa Electric Company Limited), Hideki Hosoda, Shuichi Miyazaki
• Inventors: Miyazaki, Shuichi, Hosoda, Hideki, Horikawa, Hiroshi, Tanaka, Toyonobu
• Application Number:
  US11/095,511
• Publication Number:
  US 20050254990A1
• Time in Patent Office: Days
• US Class Current: 420/417
• CPC Class Codes: A61L 2400/16 Materials with shape-memory or superelastic properties
• CPC Class Codes: A61L 31/022 Metals or alloys
• CPC Class Codes: C22C 14/00 Alloys based on titanium

Abstract

Super-elastic titanium alloy for a living body consisting essentially of: Niobium (Nb) as an element to stabilize β-phase: from 5 to 40 mol %; at least one element selected from the group consisting of gold (Au), platinum (Pt), palladium (Pd) and silver (Ag): Au: from over 0 to 10 mol %, Pt: from over 0 to 10 mol %, Pd: from over 0 to 10 mol %, Ag: from over 0 to 10 mol %, wherein a total thereof being up to 20 mol %; and balance being titanium and inevitable impurities.

Claims

1. Super-elastic titanium alloy for a living body consisting essentially of:

Niobium (Nb) as an element to stabilize β

-phase;

from 5 to 40 mol %;

at least one element selected from the group consisting of gold (Au), platinum (Pt), palladium (Pd) and silver (Ag);

Au;

from over 0 to 10 mol %,

Pt;

from over 0 to 10 mol %,

Pd;

from over 0 to 10 mol %,

Ag;

from over 0 to 10 mol %,

wherein a total thereof being up to 20 mol %; and

balance being titanium and inevitable impurities.

2. The titanium alloy as claimed in claim 1, wherein

Au:

from over 0 to 5 mol %,

Pt;

from over 0 to 5 mol %,

Pd;

from over 0 to 5 mol %,

Ag;

from over 0 to 5 mol %,

wherein a total thereof being up to 10 mol %

9. A medical guide wire which uses the super-elastic titanium alloy for a living body as claimed in any one of claims 1 to 8.

10. A orthodontic wire which uses the super-elastic titanium alloy for a living body as claimed in any one of claims 1 to 8.

11. A stent which uses the super-elastic titanium alloy for a living body as claimed in any one of claims 1 to 8.

12. An endoscope actuator which uses the super-elastic titanium alloy for a living body as claimed in any one of claims 1 to 8.

13. Material for eyeglasses which uses the super-elastic titanium alloy for a living body as claimed in any one of claims 1 to 8.

3. Super-elastic titanium alloy for a living body consisting essentially of:

Niobium (Nb) as an element to stabilize β

-phase;

from 5 to 40 mol %;

gold (Au);

from over 0 to 10 mol %, and

balance being titanium and inevitable impurities.

4. Super-elastic titanium alloy for a living body consisting essentially of:

Niobium (Nb) as an element to stabilize β

-phase;

from 5 to 40 mol %;

platinum (Pt);

from over 0 to 10 mol %, and

balance being titanium and inevitable impurities.

5. Super-elastic titanium alloy for a living body consisting essentially of:

Niobium (Nb) as an element to stabilize β

-phase;

from 5 to 40 mol %;

palladium (Pd);

from over 0 to 10 mol %, and

balance being titanium and inevitable impurities.

6. Super-elastic titanium alloy for a living body consisting essentially of:

Niobium (Nb) as an element to stabilize β

-phase;

from 5 to 40 mol %;

silver (Ag);

from over 0 to 10 mol %, and

balance being titanium and inevitable impurities.

7. Super-elastic titanium alloy for a living body consisting essentially of:

Niobium (Nb) as an element to stabilize β

-phase;

from 5 to 40 mol %;

gold (Au);

from over 0 to 10 mol %;

platinum (Pt);

from over 0 to 10 mol %;

palladium (Pd);

from over 0 to 10 mol %; and

balance being titanium and inevitable impurities.

8. Super-elastic titanium alloy for a living body consisting essentially of:

Niobium (Nb) as an element to stabilize β

-phase;

from 5 to 40 mol %;

gold (Au);

from over 0 to 10 mol %;

platinum (Pt);

from over 0 to 10 mol %; and

balance being titanium and inevitable impurities.