Geometrical instruments – Gauge – Proportional line segmenter
Patent
1987-12-21
1990-06-26
Cuchlinski, Jr., William A.
Geometrical instruments
Gauge
Proportional line segmenter
3355802, 3355803, 335582, 33 1C, G01B 316
Patent
active
049360221
ABSTRACT:
A multi-leg caliper with heart scale allowing analysis over a variable plurality of heart beats for arrhythmia is taught. Briefly stated, a plurality of parallel members are pivotally connected to a second set of parallel members thereby forming a lattice structure. Points are disposed at one end of each of the first mentioned parallel members which are placed against certain events recorded on an ECG strip chart. Pivot points associated with the opposite ends of the pointed parallel members are placed against a scale which is suitably calibrated to indicate various heart beat criteria. Also disclosed is a method of analyzing information and characteristics contained on an electrocardiogram chart by placing an indicia chart adjacent a multi-leg caliper, placing the multi-leg caliper adjacent prominent events recorded on an electrocardiogram chart and comparing values on the indicia chart adjacent indicating portions on the multi-leg caliper, thereby determining the characteristics of the electrocardiogram chart.
REFERENCES:
patent: 425168 (1890-04-01), Gale
patent: 495219 (1893-04-01), Goldschmitt
patent: 1258574 (1918-03-01), Jones
patent: 1624031 (1927-04-01), Adler
patent: 1643968 (1927-10-01), Thompson
patent: 4550502 (1985-11-01), Grayzel
Cuchlinski Jr. William A.
Scanlon Patrick R.
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