Device for correcting blood pressure waveform

Details Device for correcting blood pressure waveform Device for correcting blood pressure waveform

1989-02-09

1991-12-31

Cohen, Lee S.

Surgery

Truss

Pad

73707, 73756, 128748, A61B 502

Patent

active

050762800

ABSTRACT:
The waveform of a blood pressure of a patient is corrected by a pressure correcting mechanism having an air chamber having a volume ranging from 1 to 150 .mu.l and a resistance passage having one end communicating with the air chamber and the other end with a blood pressure measuring line. The resistance passage has a cross-sectional area ranging from 2000 to 160,000 .mu.m.sup.2 and a length ranging from 0.5 to 40 mm. A fluid such as a physiological saline solution filled in the blood pressure measuring line can flow through the resistance passage into the air chamber to dampen an extraneous pressure wave transmitted through the blood pressure measuring line.

REFERENCES:
patent: 3610228 (1971-10-01), Temkin
patent: 3865100 (1975-02-01), Kanai et al.
patent: 3901402 (1975-08-01), Ayres
patent: 4335729 (1982-06-01), Reynolds et al.
patent: 4431009 (1984-02-01), Marino et al.
patent: 4517844 (1985-05-01), Powell
patent: 4779625 (1988-10-01), Cole
patent: 4795440 (1989-01-01), Young et al.

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