Cable connection unit for connection to a gradient coil unit

Patent metadata

Field	Value
Publication number	US-11255936-B2
Application number	US-202016743647-A
Country	US
Kind code	B2
Filing date	Jan 15, 2020
Priority date	Jan 17, 2019
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

Techniques are disclosed relating to a cable connection unit for connection to a gradient coil unit, which includes at least one first electric conductor and one second electric conductor. The first electric conductor and the second electric conductor may be arranged at least partially next to one other, and be connected to one another via a load-carrying connection.

First claim

What is claimed is:

1. A cable connector for connecting to a set of gradient coils of a magnetic resonance device, the cable connector comprising:
at least one first electric conductor;
at least one second electric conductor;
a cladding comprising a textile material that encloses the first electric conductor and the second electric conductor; and
an elastic material that connects the first electric conductor and the second electric conductor to one another to retain an arrangement of the first electric conductor and the second electric conductor independently of the cladding,
wherein the first electric conductor and the second electric conductor are arranged at least partially next to one other and are connected to one another via a friction-fit connection that is formed based exclusively on static friction between the (i) first electric conductor and the second electric conductor, and (ii) the cladding.

2. The cable connector as claimed in claim 1 , wherein the cladding is a braid or a wrapping.

3. The cable connector as claimed in claim 1 , wherein the cladding has a tensile strength of at least 5 Megapascals (MPa).

4. The cable connector as claimed in claim 1 , wherein the cable connector has a length of at least 30 cm, and
wherein at least 70% of the 30-cm length of the cable connector that is configured to be connected to the set of gradient coils includes the cladding.

5. The cable connector as claimed in claim 1 , wherein at least 7 cm of the cable connector, from the end that is configured to be connected to the set of gradient coils, is free of the cladding.

6. The cable connector as claimed in claim 1 , wherein the first electric conductor and the second electric conductor each have at least one cable lug for connection to the set of gradient coils.

7. The cable connector as claimed in claim 1 , wherein at least one of the first electric conductor and the second electric conductor has (i) an insulation, and (ii) a stranded conductor.

8. The cable connector as claimed in claim 1 , wherein the first electric conductor and the second electric conductor are arranged parallel to one another.

9. The cable connector of claim 1 , wherein the elastic material comprises an adhesive that connects the first electric conductor to the second electric conductor.

10. The cable connector of claim 1 , wherein the elastic material partially fills a space between (i) the first electrical conductor and the second electrical conductor, and (ii) the cladding.

11. The cable connector of claim 1 , wherein the elastic material forms a detachable connection between the first electric conductor and the second electric conductor.

12. The cable connector of claim 1 , wherein the friction-fit connection formed between the first electric conductor and the second electric conductor reduces an effect of Lorentz forces as a result of the cable connector being disposed in a stray field of a main magnetic field of the magnetic resonance device.

13. A magnetic resonance device, comprising:
a set of gradient coils forming a gradient coil unit; and
a cable connector configured to connect to the gradient coil unit, the cable connector including:
at least one first electric conductor;
at least one second electric conductor;
a cladding comprising a textile material that encloses the first electric conductor and the second electric conductor; and
an elastic material that connects the first electric conductor and the second electric conductor to one another to retain an arrangement of the first electric conductor and the second electric conductor independently of the cladding;

wherein the first electric conductor and the second electric conductor are arranged at least partially next to one other and are connected to one another via a friction-fit connection that is formed based exclusively on static friction between the (i) first electric conductor and the second electric conductor, and (ii) the cladding.

Assignees

• Siemens Healthcare Gmbh

Inventors

• Riegler Jörg
• Bauer Simon
• Vom Endt Axel

Classifications

• A61B5/704

  Tables · CPC title

• A61B5/055

  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging · CPC title

• G01R33/3858 Primary

  Manufacture and installation of gradient coils, means for providing mechanical support to parts of the gradient-coil assembly (manufacture of inductances or coils in general H01F41/00) · CPC title

• H01B7/17

  Protection against damage caused by external factors, e.g. sheaths or armouring · CPC title

• H01B7/18

  Protection against damage caused} by wear, mechanical force or pressure; {Sheaths; Armouring · CPC title