Magnetic resonance imaging compatible audio headset
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United States of America Patent
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-
May 6, 1997
Issued Date -
N/A
app pub date -
Aug 2, 1994
filing date -
Feb 11, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A headset is provided for an audio and video system that is compatible with the strong magnetic fields generated by Magnetic Resonance Imaging equipment. In the system, the audio portion of the signal is passed through an amplifier and appropriate RF filters and chokes, and fed into a pneumatic transducer inside the magnet room. A headset having an inner set (portion) connects the output of the pneumatic transducer to the patient's ear, while an outer set covers the patient's ear to block out gradient knocking noises.
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Family
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