Magnetic resonance apparatus

Patent metadata

Field	Value
Publication number	US-9606202-B2
Application number	US-201414177932-A
Country	US
Kind code	B2
Filing date	Feb 11, 2014
Priority date	Feb 11, 2013
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A magnetic resonance apparatus includes a magnet unit that contains a high-frequency antenna unit, and a housing casing unit enclosing the magnet unit. The housing casing unit includes a side casing unit, a front casing unit, and a rear casing unit. The side casing unit, the front casing unit, and/or the rear casing unit includes at least one casing part. At least one boundary region of the housing casing unit is disposed between the different casing parts. The housing casing unit includes at least one membrane unit that contains a barrier for the propagation and/or transmission of sound waves and that covers at least one boundary region between two casing parts.

First claim

The invention claimed is:

1. A magnetic resonance apparatus, comprising:
a magnet unit comprising a high-frequency antenna unit; and
a housing casing unit enclosing the magnet unit;
wherein the housing casing unit comprises a side casing unit, a front casing unit, a rear casing unit, and at least one membrane unit;
wherein one or more of the side casing unit, the front casing unit, and the rear casing unit comprises at least one casing part;
wherein at least one boundary region of the housing casing unit is disposed between different casing parts;
wherein the at least one membrane unit comprises a barrier for one or both of propagation and transmission of sound waves and covers at least one boundary region between two casing parts; and
wherein a portion of the at least one membrane unit is spaced apart from at least one of the two casing parts.

2. The magnetic resonance apparatus of claim 1 , wherein one or more of the side casing unit, the front casing unit, and the rear casing unit comprises the at least one membrane unit.

3. The magnetic resonance apparatus of claim 2 wherein the at least one membrane unit is disposed on boundary regions between one or more of the side casing unit, the front casing unit, and the rear casing unit.

4. The magnetic resonance apparatus of claim 1 wherein the at least one membrane unit is disposed on boundary regions between one or more of the side casing unit, the front casing unit, and the rear casing unit.

5. The magnetic resonance apparatus of claim 1 , wherein the at least one membrane unit is disposed along one or both of a transmission path and a propagation path of the sound waves emitted from the magnet unit between the magnet unit and the at least one casing part.

6. The magnetic resonance apparatus of claim 1 , wherein:
one or both of the front casing unit and the rear casing unit comprises a tapering casing insertion unit;
a first boundary region of the housing casing unit is disposed between a boundary surface of the tapering casing insertion unit of one or both of the front casing unit and the rear casing unit facing the high-frequency antenna unit, and a boundary surface of the high-frequency antenna unit facing the tapering casing insertion unit of one or both of the front casing unit and the rear casing unit; and
the at least one membrane unit is disposed along one or both of a transmission path and a propagation path of the sound waves emitted from the magnet unit in front of the first boundary region.

7. The magnetic resonance apparatus of claim 6 wherein the at least one membrane unit of one or both of the front casing unit and the rear casing unit is disposed along one or both of a transmission path and a propagation path of the sound waves emitted from the magnet unit in front of the first boundary region and in front of the second boundary region.

8. The magnetic resonance apparatus of claim 1 wherein:
one or both of the front casing unit and the rear casing unit comprises a tapering casing insertion unit and at least one further casing part;
a second boundary region is disposed between a boundary surface of the tapering casing insertion unit facing the further casing part and a boundary surface of the further casing part facing the tapering casing insertion unit on one or both of the front casing unit and the rear casing unit; and
the at least one membrane unit is disposed along one or both of a transmission path and a propagation path of the sound waves emitted from the magnet unit in front of the second boundary region.

9. The magnetic resonance apparatus of claim 8 wherein the at least one membrane unit of one or both of the front casing unit and the rear casing unit is disposed along a transmission path, a propagation path, or a transmission path and a propagation path of the sound waves emitted from the magnet unit in front of the first boundary region and in front of the second boundary region.

10. The magnetic resonance apparatus of claim 1 wherein at least a portion of the membrane unit comprises a truncated cone form.

11. The magnetic resonance apparatus of claim 1 wherein the housing casing unit comprises at least one fastening unit, and the at least one membrane unit is disposed on one or both of the high-frequency antenna unit and the at least one casing part by the at least one fastening unit.

12. The magnetic resonance apparatus of claim 11 , wherein the fastening unit comprises at least one fastening element, wherein the at least one fastening element is disposed along a radial direction on an outer face of the high-frequency antenna unit, and
wherein the at least one fastening element is configured to fasten the at least one membrane unit to the high-frequency antenna unit.

13. The magnetic resonance apparatus of claim 12 , wherein the at least one fastening element is disposed on a face of the casing part of one or both of the front casing unit and the rear casing unit facing the magnet unit.

14. The magnetic resonance apparatus of claim 12 wherein the at least one fastening element comprises a form-fit element.

15. The magnetic resonance apparatus of claim 11 wherein the at least one fastening unit comprises at least one fastening element,
wherein the at least one fastening element is disposed on an outer face of the casing part of one or both of the front casing unit and the rear casing unit facing away from the magnet unit.

16. The magnetic resonance apparatus of claim 15 , wherein the at least one fastening element is disposed on a face of the casing part of one or both of the front casing unit and the rear casing unit facing the magnet unit.

17. The magnetic resonance apparatus of claim 15 wherein the at least one fastening element comprises a form-fit element.

18. The magnetic resonance apparatus of claim 11 , wherein the fastening unit comprises at least one fastening element, and
wherein the at least one fastening element is disposed on a face of the casing part of one or both of the front casing unit and the rear casing unit facing the magnet unit.

19. The magnetic resonance apparatus of claim 11 wherein the at least one fastening element comprises a form-fit element.

20. The magnetic resonance apparatus of claim 19 , wherein the form-fit element comprises a clamping element.

21. A magnetic resonance apparatus of claim 1 , wherein the at least one membrane unit covers at least one boundary region between three or more casing parts.

22. A magnetic resonance apparatus, comprising:
a magnet unit comprising a high-frequency antenna unit; and
a housing casing unit enclosing the magnet unit;
wherein the housing casing unit comprises a side casing unit, a front casing unit, a rear casing unit, at least one membrane unit, and at least one fastening unit;
wherein one or more of the side casing unit, the front casing unit, and the rear casing unit comprises at least one casing part;
wherein at least one boundary region of the housing casing unit is disposed between different casing parts;
wherein the at least one membrane unit is disposed on one or both of the high-frequency antenna unit and the at least one casing part by the at least one fastening unit; and
wherein the at least one membrane unit comprises a barrier for one or both of propagation and transmission of sound waves and covers at least one boundary region between two casing parts.

Assignees

• Maciejewski Bernd
• Stein Annette
• Siemens Ag

Inventors

• Maciejewski Bernd
• Stein Annette

Classifications

• G01R33/28

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

• G01R33/34 Primary

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

• G01R33/3854 Primary

  means for active and/or passive vibration damping or acoustical noise suppression in gradient magnet coil systems · CPC title