Method and apparatus for determining blood pressure

Details Method and apparatus for determining blood pressure Method and apparatus for determining blood pressure

1977-10-11

1980-05-13

Kamm, William E.

Surgery

Truss

Pad

128686, A61B 502

Patent

active

042023475

ABSTRACT:
It has been found that most subjects can sense the onset and cessation of the conditions in a blood vessel which give rise to the Korotkoff sounds used in blood pressure determination without use of a stethescope or any transducer and thus adequately read their own blood pressure using the blood pressure device. An inelastic cuff encircles a thumb or other portion of the subject's body and contains a diaphragm which is inflatable. A syringe-like member is connected to the diaphragm. Indicia on the barrel in accordance with the Perfect Gas Law indicate pressure at the onset and cessation of localized arterial sensations corresponding to Korotkoff sounds to afford readings of diastolic and systolic pressures. Zeroing of the indicia is provided to accommodate different sizes of thumbs, etc.

REFERENCES:
patent: 598343 (1898-02-01), Hill et al.
patent: 1188748 (1916-06-01), Fosgate
patent: 1900285 (1933-03-01), Huber
patent: 2753863 (1956-07-01), Bailey
patent: 3482565 (1969-12-01), Gowen
patent: 3504663 (1970-04-01), Edwards
patent: 3837347 (1974-09-01), Tower

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