ROLLER SHUTTER DOOR AS THE SERVICE ENTRANCE ON MAGNET ENCLOSURE ON MAGNETIC RESONANCE (MR) MEDICAL SYSTEM
Publication Date: 2016-Jul-01
The IP.com Prior Art Database
A design for an enclosure of a magnetic resonance (MR) magnet is disclosed. The enclosure is designed like a roller shutter door(s), which is similar to a garage door. Such a roller shutter door is used as a service entrance on the MR magnet. The door may be manually driven or motor driven. According to an embodiment of the invention two rollers are used for a condition when, enough space is not available at a foot of the magnet. The two rollers are arranged such that one roller is at bottom of the magnet, and another roller is on top. One other embodiment of the invention includes a flat enclosure, which uses a left-right direction roller shutter.
The present invention relates generally to a magnetic resonance (MR) system and more particularly to a door design for enclosing MR magnet.
Generally, magnetic resonance imaging (MRI) system includes a big magnet with several components mounted on the magnet. The components include control boards for receivers, an old head for helium pressure control, among others. The magnet and the components require protection from outside environment and any possible causes of damage. A large sized magnet enclosure is used for protecting the magnet and the components. For example, conventional designs of MR magnet enclosures are large and heavy, therefore, the enclosures are difficult to be mounted and dis-mounted by a single field engineer. The components mounted on the magnet require service from time to time, for which the magnet enclosure requires to be removed to access the components.
Usually, enclosures are made from mould, which needs to be of large size to cover the magnet. Large size of enclosure requires a high production price for the mould. In addition, a high part replacement cost of the enclosure, and large space requirement for field replacement part stocking and shipping is required. The stocking of magnet enclosure on field is also difficult. During installation, the large enclosure usually cannot be stored in a scan room, as the enclosure is too large and easy to be damaged during installation operation. As a result, requirement of a separate space to stock the enclosures in a hospital is not convenient and wastes unnecessary installation time.
There are several door designs and door actuation systems known in the state of the art. For example, a conventional technique includes a door actuation system, particularly a door system including a structural member and a door that is movably installed with respect to the structural member so as to move between an opening position and a closing position. A spring is installed opposite to the structural member or the door, and is located enough to press the door to the opening position when the door is on the closing position. An actuator based on active material can selectively compress the spring so as to minimize door close action force before closing the door. However, such and other conventional door designs are not applied as an enclosure for MR magnet.
Therefore, it would be desirable to have an improved design for MR magnet enclosure that is cost effective, convenient to use and requires less space for stacking.
BRIEF DESCRIPTION OF DRAWINGS
Figure 1 depicts a roller shutter that is used as a magnet enclosure for service access, with (a) the shutter pulled up and (b) shutter rolled up to a roller.
Figure 2 depicts two rollers solution, which are arranged up-down as the magnet enclosure for service access.
A design for an enclosure of a magnetic r...