Surgery – Truss – Pad
Patent
1982-10-18
1986-06-10
Coven, Edward M.
Surgery
Truss
Pad
128699, A61B 504
Patent
active
045937028
ABSTRACT:
The subject of the invention is a measuring system of the heart-conduction system on the beat-to-beat basis by a noninvasive method. It relates to electrophysiological measurements, especially the measurement of very weak voltages of the surface of patient's chest, representing the activation of a specialistic heart-conduction system. The measuring system according to the invention consists of a large number of pairs of measuring electrodes situated preferably along the line of geometrical projections of the heart-conduction system onto the surface of patient's chest and these pairs of electrodes co-operate with a large number of parallely connected amplifying elements, forming together with them parallel amplifying tracks wherefrom summed up voltage is characterized by a signal increase proportionally to the number of the said tracks and by noise increased proportionally to the square root from the number of the said tracks--due to which the signal-to-noise ratio is improved and then the signal is fed to analog and/or digital filtration.
REFERENCES:
patent: 3547104 (1970-12-01), Buffington
patent: 3878832 (1975-04-01), Tickner et al.
patent: 4194511 (1980-05-01), Feldman
patent: 4318412 (1982-05-01), Stanly et al.
Wajszczuk et al.; "Noninvasive Recording of His-Purkinje Activity in Man by QRS-Triggered Signal Avging"; Circulation, vol. 58, No. 1, 7-1978, pp. 95-102.
Walczak, F., Kepski, R., Plucinski, Z., Platkowski, A.; "Noninvasive Method of His-Purkinje System (HPS) Activation Measurement Without Averaging"; Kard. Pol., 1980 vol. XXIII, No. 7, pp. 625-629.
Kepski, R., Plucinski, Z., Walczak, F., Platkowski, A.; "His-Purkinje (HPS) System Activation Measurement from the Chest Surface in Consecutive Heart Evolutions", Post. Fiz. Med., 1980, vol. XV, No. 4, pp. 185-193.
Stopczyk, M. J., Walczak, F., Kepski, R., Plucinski, Z., Peczalski, K.; "The History of Noninvasive His-Bundling Recording: From Averaging to Continuous Method", Signal Averaging Technique in Clinical Cardiology, Int. Symp. F. K. Schattauer Verlag-Stuttgart-N.Y., 1981, pp. 283-289.
Kepski Roman
Piatkowski Adam
Plucinski Zbigniew
Walczak Franciszek
Coven Edward M.
Osrodek Badawczo-Rozwojowy Techniki Medycznej "Ormed"
Sykes Angela D.
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