Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1995-06-07
1997-12-16
Lateef, Marvin M.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
607 32, 607 60, 128901, A61N 116
Patent
active
056979584
ABSTRACT:
Disclosed are apparatus and method for detecting electromagnetic interference (EMI), or noise, that may disrupt the proper operation of medical devices implantable in patients, such as cardiac stimulators. Circuitry of the detector of the invention is independent of other circuitry of the medical device. EMI is magnetically induced on an antenna that may be within the metal housing of the device in a receiver circuit, and the EMI signals are output to the noise detector. A variety of alert signals may be provided to the medical device circuitry to warn of the presence of EMI so that appropriate responses may be taken to insure the safety of the patient dependent on the device. The detector may share the telemetry antenna of the medical device, or utilize a separate, dedicated antenna to receive EMI. Alternative antennas external to the metal housing of the medical device include leads from the device to the heart of the patient, and a dedicated antenna in the non-metal header of the device.
REFERENCES:
patent: 3218638 (1965-11-01), Honig
patent: 3631860 (1972-01-01), Lopin
patent: 4091818 (1978-05-01), Brownlee et al.
patent: 4102345 (1978-07-01), Cannon, III
patent: 4126139 (1978-11-01), Walters et al.
patent: 4263919 (1981-04-01), Levin
patent: 4424812 (1984-01-01), Lesnick
patent: 4830006 (1989-05-01), Haluska et al.
patent: 4967746 (1990-11-01), Vandegriff
patent: 5010887 (1991-04-01), Thornander
patent: 5020538 (1991-06-01), Morgan et al.
patent: 5151832 (1992-09-01), Pritchard et al.
patent: 5304206 (1994-04-01), Baker, Jr. et al.
patent: 5350413 (1994-09-01), Miller
patent: 5383912 (1995-01-01), Cox et al.
patent: 5438990 (1995-08-01), Wahlstrand et al.
"Surface Mount Zero Bias Schottky Detector Diodes Technical Data" technical information publication of Hewlett-Packard Co., Sep., 1994, 12 pages.
"Cardiac Pacing and Electrophysiology", 3rd edition, edited by El-Sherif, N. and Samet, P., pp. 608-633, Barold, S.S., Falkoff, M.D., Ong, L.S. and Heinle, R.A. Interference in Cardiac Pacemakers: Exogenous Sources, W.B. Saunders Company, 1991.
Brown, J. "GMR Materials: Theory and Applications" Sensors, Sep., 1994, pp. 42-44, 47 and 48.
Carey, J. "Magnetic Field of Dreams" Business Week, Apr. 18, 1994, 3 pages starting at p. 118.
Denny, H.W. and Jenkins, B.M. "EMC History of Cardiac Pacemakers" EMC Test & Design, Apr., 1993, pp. 33, 35 and 36.
Lucas, E.H., Johnson, D. and McElroy, B.P. "The Effects of Electronic Article Surveillance Systems on Permanent Cardiac Pacemakers: An In Vitro Study" PACE, vol. 17, Nov., 1994, Part II, pp. 2021-2026.
Dodinot, B., Godenir, J-P., Costa, A.B., Zeller, C. and Broschart, M. "Electronic Article Surveillance: A Possible Danger for Pacemaker Patients" PACE, vol. 16, Jan., 1993, Part I, pp. 46-53.
Schuder, J.C., Gold, J.H. and Stephenson, H.E., Jr. "An Inductively Coupled RF System for the Transmission of 1 kW of Power Through the Skin" IEEE Transactions on Bio-Medical Engineering, vol. BME-18, No. 4, Jul., 1971, pp. 265-273.
Heetderks, W.J. "RF Powering of Millimeter-and Submillimeter-Sized Neural Prosthetic Implants" IEEE Transactions on Bio-Medical Engineering, vol. 35, No. 5, May, 1988, pp. 323-327.
Donaldson, P.E.K. "Power for Neurological Prostheses: A Simple Inductive R.F. Link with Improved Performance" J. Biomed. Eng., vol. 9, Jul., 1987, pp. 194-197.
"GMR Magnetic Bridge Sensor" technical information material of Nonvolatile Electronics, Inc., 2 pages.
"Rapid Prototype Integrated GMR Magnetic Sensors" technical information material of Nonvolatile Electronics, Inc., 2 pages.
"Integrated GMR Magnetic Sensors" technical information material of Nonvolatile Electronics, Inc., 2 pages.
Ivall, T. "Does Your Coupling Coefficient Matter?" Electronics & Wireless World, Jun., 1987, pp. 577-579.
Paul Patrick J.
Prutchi David
Intermedics Inc.
Lateef Marvin M.
Schaetzle Kennedy J.
Zamecki E. Richard
LandOfFree
Electromagnetic noise detector for implantable medical devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electromagnetic noise detector for implantable medical devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic noise detector for implantable medical devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-201723