Cr, Ni, Mo and Co alloy for use in medical devices

Patent metadata

Field	Value
Publication number	US-10487377-B2
Application number	US-201615382294-A
Country	US
Kind code	B2
Filing date	Dec 16, 2016
Priority date	Dec 18, 2015
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

One aspect generally relates to a Cr, Ni, Mo and Co alloy, with tightly controlled levels of impurities. One aspect relates to an alloy including about 10 to about 30 weight % Cr, about 20 to about 50 weight % Ni, about 2 to about 20 weight % Mo, about 10 to about 50 weight % Co, and less than about 0.01 weight % Al, wherein each weight % is based on the total weight of the alloy.

First claim

What is claimed is:

1. An alloy comprising:
about 10 to about 30 weight % Cr;
about 20 to about 50 weight % Ni;
about 2 to about 20 weight % Mo;
about 10 to about 50 weight % Co; and
less than about 0.01 weight % Al;
wherein each weight % is based on the total weight of the alloy.

2. The alloy of claim 1 further comprising less than about 0.005 weight % Mg, based on the total weight of the alloy.

3. The alloy of claim 1 further comprising less than about 0.005 weight % Ca, based on the total weight of the alloy.

4. The alloy of claim 1 further comprising less than about 0.005 weight % Ce, based on the total weight of the alloy.

5. The alloy of claim 1 further comprising less than about 0.1 weight % Ti, based on the total weight of the alloy.

6. The alloy of claim 1 further comprising from about 0.0001 to about 1 weight % Fe.

7. The alloy of claim 1 , wherein at least one of the following is satisfied:
a) the content of C in the alloy is less than about 0.1 weight %;
b) the content of B in the alloy is less than about 0.01 weight %;
c) the content of P in the alloy is less than about 0.01 weight %;
d) the content of S in the alloy is less than about 0.005 weight %;
wherein each weight % is based on the total weight of the alloy.

8. The alloy of claim 1 , wherein at least one of the following is satisfied:
a) the content of Mn in the alloy is less than about 0.05 weight %;
b) the content of Si in the alloy is less than about 0.05 weight %;
wherein each weight % is based on the total weight of the alloy.

9. The alloy of claim 1 , wherein at least one of the following is satisfied:
a) the content of O in the alloy is in the range from about 0.0001 to about 0.05 weight %;
b) the content of N in the alloy is in the range from about 0.0001 to about 0.01 weight %;
wherein each weight % is based on the total weight of the alloy.

10. One of an electrical wire, a wire of a medical device, and a wire of a pacemaker device, comprising an alloy according to claim 1 .

Assignees

• Heraeus Deutschland Gmbh & Co Kg
• Saes Smart Mat Inc

Inventors

• Richter René
• Gebert Jörg-Martin
• Specht Heiko
• Sczerzenie Francis E
• Manjeri Radhakrishnan M
• Yin Weimin

Classifications

• A61N1/056

  Transvascular endocardial electrode systems · CPC title

• C22C1/02

  by melting {(C22C1/1036 takes precedence)} · CPC title

• C22C30/00 Primary

  Alloys containing less than 50% by weight of each constituent · CPC title

• A61N1/375

  Constructional arrangements, e.g. casings · CPC title