Recording sphygmomanometer sphygpressure graph

Details Recording sphygmomanometer sphygpressure graph Recording sphygmomanometer sphygpressure graph

1976-06-14

1977-04-05

Howell, Kyle L.

Surgery

Truss

Perineal

128 205Q, 346 33ME, 346139R, A61B 502

Patent

active

040155943

ABSTRACT:
A sphygpressure graph of the aneroid gauge type including a housing, connected with a sphygmocuff, supporting a series of telescoping tubes, connected in right angular relation, and a stylus, mounted on the endmost tube, movable over a chart to scribe the blood pressures. A ratchet and pawl arrangement engaging the telescoping tubes prevents reciprocating action of pulse pressure moving the stylus in a to and fro movement transversely over a graph paper but records the pulse by longitudinally scribing a graph paper during release of pressure from the sphygmocuff.

REFERENCES:
patent: 183205 (1876-10-01), Pond
patent: 205412 (1878-06-01), Pond
patent: 1043521 (1912-11-01), Hoobler
patent: 2753863 (1956-07-01), Bailey
patent: 3314295 (1967-04-01), Wukovitz
patent: 3662394 (1972-05-01), Dudler
patent: 3754545 (1973-08-01), Weinstein
patent: 3771515 (1973-11-01), Hurwitz

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