Main field magnet system for a magnetic resonance device

Details Main field magnet system for a magnetic resonance device Main field magnet system for a magnetic resonance device

1997-06-26

1999-06-29

Smith, Ruth S.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

600410, 600421, 324319, 324320, 335216, 335299, H01F 700, A61B 5055

Patent

active

059173955

ABSTRACT:
A magnetic resonance device has a main field magnet system which generates a steady magnetic field in an examination zone. The main field magnet system includes a yoke structure which consists of two yoke plates and a yoke wall interconnecting the two yoke plates, a pole block which is arranged inside the yoke device, and below an examination zone, and a coil which is arranged within the yoke system and above the examination zone. In order to ensure that a patient present in the examination zone can also undergo further treatments and is freely accessible during an MR examination, the inner space of the coil as well as the space between the coil and the examination zone remains free from components of the magnet system, the coil being constructed so as to be ring-shaped and encloses the examination zone essentially in such a manner that the patient is freely accessible from above and from the sides.

REFERENCES:
patent: 5519372 (1996-05-01), Palkovich et al.

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