Radiofrequency shielding conduit in a door or a doorframe of a magnetic resonance imaging room

• US 10,386,432 B2
• Filed: 03/08/2017
• Issued: 08/20/2019
• Est. Priority Date: 12/18/2013
• Status: Active Grant

• Current Assignee: Aspect Imaging Ltd.
• Original Assignee: Aspect Imaging Ltd.
• Inventors: Azulay, Shmuel, Rapoport, Uri
• Primary Examiner(s): Bonnette, Rodney A
• Application Number:
  US15/452,916
• Publication Number:
  US 20170176557A1
• Time in Patent Office: 895 Days
• CPC Class Codes: A61B 2505/01 Emergency care
• CPC Class Codes: A61B 2562/182 Electrical shielding, e.g. using a Faraday cage
• CPC Class Codes: A61B 5/0046 Arrangements of imaging apparatus in a room, e.g. room provided with shielding or for improved access to apparatus
• CPC Class Codes: A61B 5/055 involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
• CPC Class Codes: G01R 33/0052 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 Class Codes: G01R 33/0076 Protection, e.g. with housings against stray fields
• CPC Class Codes: G01R 33/422 of the radio frequency field
• CPC Class Codes: G01R 33/48 NMR imaging systems

Abstract

A radiofrequency (RF) shielding conduits that can be embedded within a doorframe and/or a door of a magnetic resonance imaging (MRI) room are disclosed. The RF shielding conduits can form, upon closing of door onto the doorframe, an RF shielding channel to enclose and/or allow passage of tubing of medical equipment extending from an interior of the MRI room to an environment that is external to the MRI room, while providing a RF shielding of the MRI room.

Claims

1. A radiofrequency (RF) shielding conduit to be embedded within at least one of:

a doorframe, a door or any combination thereof of a magnetic resonance imaging (MRI) room, the RF shielding conduit comprising;

a first and a second wall, the first wall and the second wall are parallel to a longitudinal axis of the doorframe, each of the first wall and the second wall having an opening, wherein the opening of the first wall is at an opposite end with respect to the opening of the second wall;

a third wall parallel to the longitudinal axis of the doorframe, the third wall is connected to the first wall and the second wall; and

a gap bounded by the first wall, the second wall and the third wall,

wherein the RF shielding conduit forms upon closing of a door onto the doorframe a RF shielding channel to provide a RF shielding of the MRI room.

2. The RF shielding conduit of claim 1, wherein providing of the RF shielding of the MRI room comprising preventing an external RF radiation from entering an interior of the MRI room and from a radiation emitted by a MRI device from exiting the interior of the MRI room.

3. The RF shielding conduit of claim 1, wherein the first, second and third walls comprising a conductive material.

4. The RF shielding conduit of claim 1, wherein the first wall is closer to an interior of the MRI room and the second wall is closer to an environment that is external to the MRI room.

5. The RF shielding conduit of claim 1, wherein the gap having a U shape in a transverse direction with respect to the longitudinal axis.

6. The RF shielding conduit of claim 1, wherein the gap receives tubing of medical equipment extending from an interior of the MRI room to an environment that is external to the MRI room.

7. The RF shielding conduit of claim 6, wherein the RF shielding channel encloses the tubing of medical equipment extending from the interior of the MRI room to the environment that is external to the MRI room.

8. The RF shielding conduit of claim 1, wherein the RF shielding tunnel having a longitudinal dimension and a transverse dimension and wherein a ratio of the longitudinal dimension to transverse dimension is at least 5:

1.