Blood pressure measuring system

Details Blood pressure measuring system Blood pressure measuring system

1995-07-26

1997-12-23

Bahr, Jennifer

Surgery

Truss

Pad

128681, 128687, A61B 502

Patent

active

056998074

ABSTRACT:
A pressure sensor gathers discrete data representing the pulse amplitude of a pulse wave signal when a cuff pressure is increased and decreased. A RAM stores the discrete data of the pulse amplitude. A CPU processes the discrete data by using a spline function, to thereby generate the data representative of a smooth continuous line passing by points of the pulse amplitude of the discrete data. This process reduces a variation of the pulse amplitude of a pulse wave signal, to thereby minimize a variation of the blood pressure values. An inflection point of the smooth continuous line is used as a diastolic blood pressure value.

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patent: 4677984 (1987-07-01), Sramek
patent: 4736295 (1988-04-01), Lachiver et al.
patent: 5337751 (1994-08-01), Newell et al.
patent: 5355890 (1994-10-01), Aquirre et al.
"Journal of Clinical Engineering Nov./Dec. 1994."

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