Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1996-01-24
1997-07-01
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 139
Patent
active
056433255
ABSTRACT:
A method for detecting a heart disorder comprises examination of a phase-plane plot (PPP) of a patient electrocardiogram (EKG). The PPP's degree of deterministic chaos may be measured by a processor. Analysis of the PPP may indicate a propensity for fibrillation that is, indicate both the risk of fibrillation and its actual onset (cases where risk is 100 percent). A second method for detecting a heart disorder comprises examination of a frequency-domain transform (such as an FFT) of a patient EKG. An automatic defibrillating device may comprise means for delivering a variable shock, the size of which is determined at least in part by the FFT's peak energy. A method for detecting drug toxicity comprises examination of a parameter time constant for an action-potential duration (APD) restitution curve which is constructed for the patient.
REFERENCES:
patent: 3929125 (1975-12-01), Barnes
patent: 3940692 (1976-02-01), Neilson
patent: 4085407 (1978-04-01), Stratbucker et al.
patent: 4172451 (1979-10-01), Kline
patent: 4202340 (1980-05-01), Langer et al.
patent: 4377492 (1983-03-01), Aurousseau
patent: 4384585 (1983-05-01), Zipes
patent: 4403614 (1983-09-01), Engle et al.
patent: 4523595 (1985-06-01), Zibell
patent: 4570225 (1986-02-01), Lundy
patent: 4680708 (1987-07-01), Ambos et al.
patent: 4924875 (1990-05-01), Chamoun
patent: 4934374 (1990-06-01), Oslund et al.
patent: 4964410 (1990-10-01), Leahey et al.
patent: 4974598 (1990-12-01), John
patent: 4979110 (1990-12-01), Albrecht et al.
patent: 5000189 (1991-03-01), Throne et al.
patent: 5092341 (1992-03-01), Kelen
Goldberg et al., Applications of Nonlinear Dynamics to Clinical Cardiology, pp. 195-212, Annals of the N.Y. Academy of Science, vol. 504, 1987.
Babloyantz et al., Is the Normal Heart a Periodic Oscillator?, pp. 203-211, Biol.Cybernetics 58, (1988).
Berni et al., Detection of Digitalis Toxicity, pp. 29-34, IEEE Transactions on Biomedical Engineering, vol. BME-22.
Shimizu et al., Circulation, vol. 75 (Suppl I), pp. I-34-I-39 (Jan. 1987).
Paulus et al., Circulation, vol. 81, pp. 886-898, (Mar. 1980).
Nave et al., International Journal of System Science, vol. 13, pp. 703-706, (Jun. 1982).
Ravelli et al., Proceedings of Computers in Cardiology; IEEE Computer Society Press, pp. 501-504, Jerusalem Israel, (Sep. 1989).
Klinger et al., Proceedings of the 8th Northeast Bioengineering Conference; IEEE Press Conference, pp. 217-221, New York, US (1980).
Jorne et al., Mathematical Biosciences, vol. 37, pp. 51-61, (1977).
Denton Timothy A.
Diamond George A.
Evans Steven
Karagueuzian Hrayr S.
Khan Steven S.
Cedars-Sinai Medical Center
Kamm William E.
LandOfFree
Defibrillator with shock energy based on EKG transform does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Defibrillator with shock energy based on EKG transform, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Defibrillator with shock energy based on EKG transform will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-593183