Method and apparatus for buffering electrophysiological signals during an MRI procedure

• Main Authors: NEWMAN RICHARD GERARD, FREEMAN WARWICK EDWARD
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2011
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEDICAL OR VETERINARY SCIENCE; PHYSICS; SURGERY; TESTING

The subject invention overcomes the problem of electrical interference in signals taken during an MRI procedure by using a long cable and a unity gain buffer amplifier near the patient, with a low output impedance to drive the cable and thus greatly reduce the capacitively coupled interference. Pass...