Conversation device of MR imaging apparatus

Details Conversation device of MR imaging apparatus Conversation device of MR imaging apparatus

1988-05-18

1990-02-27

Smith, Ruth S.

Surgery

Truss

Pad

381151, 381169, 324318, A61B 505

Patent

active

049037030

ABSTRACT:
The conversation device of an MR imaging apparatus including a magnet for generating a static magnetic field, a gradient field coil disposed between pole pieces of the magnet and used for endowing an NMR signal with positional information, a high-frequency coil disposed in the gradient field coil for transmitting an electromagnetic wave and for detecting the NMR signal, and a bed disposed in the high-frequency coil for holding a person to be inspected, is disclosed. In this conversation device, a bone conduction microphone insensitive to a magnetic field and surrounding noise is mounted on an auxiliary member (which is used for placing the to-be-inspected person at a predetermined position on the bed) so that the bone conduction microphone can be kept in contact with that part of the to-be-inspected person which can conduct the voice of the to-be-inspected person by a bone.

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patent: 4025734 (1977-05-01), Aloupis
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patent: 4214215 (1980-07-01), Mellen et al.
patent: 4309575 (1982-01-01), Zweig et al.
patent: 4681098 (1987-07-01), Lee
patent: 4689565 (1987-08-01), Kemner et al.

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