Composite wire

Patent metadata

Field	Value
Publication number	US-2018366238-A1
Application number	US-201815996554-A
Country	US
Kind code	A1
Filing date	Jun 4, 2018
Priority date	Jun 14, 2017
Publication date	Dec 20, 2018
Grant date	—

Abstract

One aspect relates to a coil comprising at least two composite wires. The composite wire includes a first part and a second part. The first part is a metallic component. The second part includes an alloy of:
a) Cr in the range from about 10 to about 30 wt. %; b) Ni in the range from about 20 to about 50 wt. %; c) Mo in the range from about 2 to about 20 wt. %; d) Co in the range from about 10 to about 50 wt. %.

The Al content of the Cr, Ni, Mo and Co alloy is less than about 0.01 wt. % and each wt. % is based on the total weight of the alloy. The first part may at least partially surround the second part when seen in a cross section.

First claim

What is claimed is:

1 . A composite wire comprising
a first part; and a second part; wherein the first part is a metallic component; and wherein the second part includes an alloy comprising the following alloy components: a) Cr in the range from about 10 to about 30 wt. %; b) Ni in the range from about 20 to about 50 wt. %; c) Mo in the range from about 2 to about 20 wt. %; d) Co in the range from about 10 to about 50 wt. %; wherein the Al content of the alloy is less than about 0.01 wt. %; and wherein each wt. % is based on the total weight of the alloy.

2 . The composite wire of claim 1 , wherein the Cr, Ni, Mo and Co components are major constituents of the second part with at least about 95 wt. % of the alloy being Cr, Ni, Mo and Co.

3 . The composite wire of claim 1 , wherein the first part at least partially surrounds the second part when seen in a cross section, and wherein the first part is in one embodiment, biocompatible.

4 . The composite wire of claim 1 , wherein the composite wire further comprises a core part, which is at least partially surrounded by the second part when seen in a cross section.

5 . The composite wire of claim 4 , wherein the core part is a metallic component.

6 . The composite wire of claim 1 , wherein the second part at least partially surrounds the first part when seen in a cross section.

7 . The composite wire of claim 1 , wherein the composite wire further includes a circumference part, which at least partially surrounds the second part when seen in a cross section, and wherein the circumference part is biocompatible.

8 . The composite wire of claim 1 , wherein a diameter of the composite wire is in a range of 10 to 500 μm.

9 . The composite wire of claim 1 , wherein the composite wire further comprises a coating as outermost part at least partially surrounding all other parts.

10 . The composite wire of claim 9 , wherein the coating provides electrical insulation.

11 . The composite wire of claim 9 , wherein the coating comprises at least one of a group of enzymes, antimicrobials, and steroids.

12 . A coil comprising at least two composite wires of claim 1 wound together.

13 . The coil of claim 12 , wherein at least some of the composite wires are electrically insulated from each other.

14 . A cable comprising at least three composite wires according to claim 1 stranded together.

15 . A medical device comprising at least one of the group of a composite wire, a coil and a cable according to claim 1 as a lead.

16 . The medical device of claim 15 , wherein the lead is configured for at least one of a group of: pacing, defibrillating, cardiac resynchronization, and stimulation to nerves or neural tissue in deep brain, spinal cord, vagus nerve or a peripheral nerve.

17 . A manufacturing method for a composite wire, comprising:
providing a first part and a second part concentric to each other when seen in a cross section, and joining the first part and the second part together, wherein the first part is a metallic component, and wherein the second part includes an alloy comprising the following alloy components: e) Cr in the range from about 10 to about 30 wt. %; f) Ni in the range from about 20 to about 50 wt. %; g) Mo in the range from about 2 to about 20 wt. %; h) Co in the range from about 10 to about 50 wt. %; wherein the Al content of the alloy is less than about 0.01 wt. %; wherein each wt. % is based on the total weight of the alloy.

Assignees

• Heraeus Deutschland Gmbh & Co Kg
• Saes Smart Mat Inc
• Heraeus Materials Singapore Pte Ltd
• Heraeus Medical Components Llc

Inventors

• Richter René
• Gebert Jörg-Martin
• Specht Heiko
• Sczerzenie Francis E
• Manjeri Radhakrishnan M
• Yin Weimin
• Golagani Venkata Kanaka Sai Srikanth
• Lark Larry

Classifications

• A61N1/362

  Heart stimulators (heart defibrillators A61N1/39) · CPC title

• H01B13/0036

  Details · CPC title

• C22F1/16

  of other metals or alloys based thereon · CPC title

• C22C30/00

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

• H01B1/02 Primary

  mainly consisting of metals or alloys · CPC title