Surgery – Truss – Pad
Patent
1991-05-28
1993-06-08
Kamm, William E.
Surgery
Truss
Pad
128696, A61N 137
Patent
active
052170101
ABSTRACT:
A device for monitoring a patient or pacing a patient is disclosed which can safely operate in a MRI system. The device uses unique RF filtering and shielding to attenuate voltages on the leads resulting from the high frequency RF signals produced in the MRI. The device is uniquely shielded to prevent induced currents from disrupting the amplifying and processing electronics. The device uses an optional secondary low pass or band reject filter to eliminate interference from the MRI's gradient magnetic field. The device uses optional inductors placed close to electrodes to limit RF currents through the electrodes. Several embodiments of the RF filter are taught which depend on the number of sensing leads, whether the leads are shielded, whether the RF filter is contained in the electronic shielded housing or whether single or multistage filtering is employed. The device may operate as an extended ECG monitor or may be an implantable MRI safe pacemaker.
REFERENCES:
patent: 3881493 (1975-05-01), Cannon
patent: 4038990 (1977-08-01), Thompson
patent: 4248237 (1981-02-01), Kenny
patent: 4254775 (1981-10-01), Langer
patent: 4436093 (1984-03-01), Belt
patent: 4456786 (1984-06-01), Kyle
patent: 4887609 (1989-12-01), Cole, Jr.
patent: 4899760 (1990-02-01), Jaeb et al.
patent: 4951672 (1990-08-01), Buchwald et al.
patent: 4991580 (1991-02-01), Moore
Halperin Henry
Levin Howard
Tsitlik Joshua E.
Weisfeldt Myron
Califano Howard W.
Kamm William E.
The Johns Hopkins University
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