Mounting for a body coil of a magnetic resonance device

Patent metadata

Field	Value
Publication number	US-9599684-B2
Application number	US-201414203180-A
Country	US
Kind code	B2
Filing date	Mar 10, 2014
Priority date	Jun 27, 2013
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

Mounting for a body coil of a magnetic resonance device is provided. A reversible and universal mounting device for a body coil in the magnetic resonance device is provided. The mounting device includes at least one expanding ring for creating a way of retaining the body coil in a tunnel-shaped magnetic opening of the magnetic resonance device. The mounting device also includes at least one expander that is configured to enable the expanding ring to be mounted on the inside of the tunnel-shaped magnetic opening of the magnetic resonance device by spreading. The mounting device includes at least one mounting element for mechanically supporting the body coil on the expanding ring.

First claim

The invention claimed is:

1. A mounting device for a body coil of a magnetic resonance device, the mounting device comprising:
an expanding ring operable to retain the body coil in a tunnel-shaped magnetic opening of the magnetic resonance device;
an expander configured to enable the expanding ring to be mounted on the inside of the tunnel-shaped magnetic opening of the magnetic resonance device by spreading; and
a mounting element operable to mechanically support the body coil on the expanding ring.

2. The mounting device of claim 1 , wherein the expanding ring is at least partly plastic.

3. The mounting device of claim 1 , wherein the expanding ring comprises at least two ring segments.

4. The mounting device of claim 3 , wherein the at least two ring segments are interconnectable by pinned connections.

5. The mounting device of claim 1 , wherein the expander in an initial state is configured such that the expanding ring has a first radius, and
wherein the expander in a second state is configured such that the expander enters into a changed interaction with the expanding ring, and the expanding ring has an enlarged second radius compared to the first radius.

6. The mounting device of claim 1 , wherein the expander comprises:
a guide lug that is incorporated in the expanding ring,
an expanding element and a connecting element interacting therewith,
wherein the expanding element and the connecting element enable the expanding element to be displaced relative to the guide lug.

7. The mounting device of claim 1 , wherein the mounting element is implemented as a support element,
wherein on an end facing the inside of the tunnel-shaped magnetic opening, the support element comprises a mount that is configured to provide mechanical connection of the support element to the expanding ring, and
wherein on an end facing in the direction of a center of the tunnel-shaped magnetic opening, the support element comprises a radially adjustable ram for mechanically fixing the body coil in place.

8. The mounting device of claim 7 , wherein the support element comprises an adjustable damper between the mount and the ram.

9. The mounting device of claim 1 , wherein the mounting element is implemented as a bottom support device for the body coil, and
wherein the bottom support device is provided for a mechanical connection to the expanding ring and comprises at least one point of support for the body coil.

10. A magnetic resonance device comprising:
a mounting device for a body coil of the magnetic resonance device, the mounting device comprising:
an expanding ring operable to retain the body coil in a tunnel-shaped magnetic opening of the magnetic resonance device;
an expander configured to enable the expanding ring to be mounted on the inside of the tunnel-shaped magnetic opening of the magnetic resonance device by spreading; and
a mounting element operable to mechanically support the body coil on the expanding ring.

11. A coil element comprising:
a mounting device for a body coil of a magnetic resonance device, the mounting device comprising:
an expanding ring operable to retain the body coil in a tunnel-shaped magnetic opening of the magnetic resonance device;
an expander configured to enable the expanding ring to be mounted on the inside of the tunnel-shaped magnetic opening of the magnetic resonance device by spreading; and
a mounting element operable to mechanically support the body coil on the expanding ring; and

the body coil, wherein the body coil is mechanically connectable to the mounting device via the mounting element.

12. A method for mounting a body coil in a magnetic resonance device, the method comprising:
mounting the body coil on an inside of a tunnel-shaped magnetic opening of the magnetic resonance device, the mounting of the body coil comprising spreading an expanding ring with an expander such that the expanding ring is mounted on the inside of the tunnel-shaped magnetic opening of the magnetic resonance device,
wherein the body coil is mechanically supported on the expanding ring by a mounting element.

13. The method of claim 12 , wherein, by actuation of the expander, the expander enters into a changed interaction with the expanding ring so that the expanding ring has a larger radius than prior to actuation of the expander.

14. The method of claim 13 , wherein the expanding ring is spread by counterpressure of an expanding element of the expander against a guide lug of the expander.

15. The method of claim 12 , wherein the expanding ring is spread by counterpressure of an expanding element of the expander against a guide lug of the expander.

16. The method of claim 15 , wherein the body coil is mechanically supported on the expanding ring by pressure of a ram of a support element against an outer wall of the body coil in the direction of the center of the tunnel-shaped magnetic opening.

17. The method of claim 15 , wherein the body coil is mechanically supported on the expanding ring by being seated on a point of support of a bottom support device.

18. The method of claim 12 , wherein the body coil is mechanically supported on the expanding ring by pressure of a ram of a support element against an outer wall of the body coil in the direction of the center of the tunnel-shaped magnetic opening.

19. The method of claim 18 , wherein the body coil is mechanically supported on the expanding ring by being seated on a point of support of a bottom support device.

20. The method of claim 12 , wherein the body coil is mechanically supported on the expanding ring by being seated on a point of support of a bottom support device.

Assignees

• Lazar Razvan
• Schramm Martin
• Siemens Ag

Inventors

• Lazar Razvan
• Schramm Martin

Classifications

• G01R33/28 Primary

  Details of apparatus provided for in groups G01R33/44 - G01R33/64 · CPC title

• G01R33/34046

  Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils · CPC title

• G01R33/0052

  Manufacturing aspects; Manufacturing of single devices, i.e. of semiconductor magnetic sensor chips (devices based on galvano-magnetic effect or the like H10N50/85) · CPC title

• G01R33/34 Primary

  Constructional details, e.g. resonators {, specially adapted to MR} · CPC title

• Y10T29/4902

  Electromagnet, transformer or inductor · CPC title