Surgery – Truss – Perineal
Patent
1975-05-15
1977-06-21
Kamm, William E.
Surgery
Truss
Perineal
33 1C, 33107R, 235 70B, A61B 504
Patent
active
040304868
ABSTRACT:
This disclosure relates to a method and specific apparatus for extracting significant data values, analogous temporally and electrically to the physiologic myocardial action potential which accompanies each cardiac contraction, from conventionally recorded electrocardiograms. The apparatus for measuring deflection and temporal values from said conventional electrocardiograms is comprises of three transparent elements. One of the elements constructed to be positioned over the electrocardiogram to be measured and has integral therewith a grid, while the two remaining elements are slideably positioned one over the other on the said positioned element such that their movement is at right angles to each other.
REFERENCES:
patent: 1560599 (1925-11-01), Moler
patent: 2088533 (1937-07-01), Phelps
patent: 2501550 (1950-03-01), Tamagna et al.
patent: 2736097 (1956-02-01), Coleman, Jr.
patent: 3346960 (1967-10-01), Miles
Kamm William E.
Zurawsky Lawrence G.
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