# US 10,767,244 B2 · Titanium alloy

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- Number: US 10,767,244 B2
- Document ID: US10767244B2
- Status: Granted
- Kind: B2
- Application number: 15/324,192
- Filed: 2015-06-22
- Published: 2017-11-02
- Granted: 2020-09-08
- Earliest claimed: 2014-07-08
- Assignees: Dietmar Wolter
- Applicants: Dietmar Wolter
- Inventors: Dietmar Wolter; Carsten Siemers; Heinz Sibum
- Web page: https://patentgrep.com/patent/US10767244B2

## CPC

- C22C 14/00: Alloys based on titanium
- A61L 27/06: Titanium or titanium alloys
- C22F 1/183: {of titanium or alloys based thereon}
- C22C: ALLOYS (treatment of alloys C21D, C22F)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- C22F: CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS (surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by this subclass, C23F17/00)

## Abstract

The disclosure relates to a titanium alloy, in particular to be used for biocompatible implants, which contains no aluminum (Al), vanadium (V), cobalt (Co), chromium (Cr), nickel (Ni) and tin (Sn) and contains at least the following alloy components in wt % in addition to inevitable trace amounts of impurities contained in the alloy components or absorbed during the production: a) 0.2 to 1.5% oxygen (O), b) 0.1 to 1.5% iron (Fe), c) 0.01 to 2% carbon (C), d) the remainder being titanium (Ti).

## Claims

### Claim 1

A biocompatible implant made of a titanium alloy, which comprises, with exclusion of aluminum (Al), vanadium (V), cobalt (Co), chromium (Cr), nickel (Ni), and tin (Sn) as alloying elements, besides unavoidable trace amounts of impurities which are present in the alloying constituents or have been taken up during production, at least the following alloying constituents in wt %:
a) 0.2 to 1.5% oxygen (O),
b) 0.1 to 1.5% iron (Fe),
c) 0.01 to 2% carbon (C),
d) less than 0.5% silicon (Si),
e) at least one of gold (Au), niobium (Nb), molybdenum (Mo), and zirconium (Zr), in the following amounts:
less than 1% to 0.1% gold (Au),
less than 1% to 0.1% niobium (Nb),
less than 1% to 0.1% molybdenum (Mo), and
less than 1% to 0.1% zirconium (Zr), and
f) a balance of titanium (Ti).

### Claim 2 (depends on 1)

The titanium alloy as claimed in claim 1, further comprising less than 0.4%, nitrogen (N).

### Claim 3

A biocompatible implant made of a titanium alloy, which comprises, with exclusion of aluminum (Al), vanadium (V), cobalt (Co), chromium (Cr), nickel (Ni), and tin (Sn) as alloying elements, besides unavoidable trace amounts of impurities which are present in the alloying constituents or have been taken up during production, at least the following alloying constituents in wt %:
a) 0.2 to 1.5% oxygen (O),
b) 0.1 to 1.5% iron (Fe),
c) 0.01 to 2% carbon (C),
d) less than 0.5% silicon (Si),
e) less than 1% but more than 0.1% gold (Au), and
f) a balance of titanium (Ti).