Method and apparatus for detecting artifacts in a blood pressure

Details Method and apparatus for detecting artifacts in a blood pressure Method and apparatus for detecting artifacts in a blood pressure

1993-03-26

1994-09-06

Sykes, Angela D.

Surgery

Truss

Pad

128672, A61B 50215

Patent

active

053438680

ABSTRACT:
A method for detecting artifacts in a blood pressure measuring system, in particular artifacts caused by sampling or flushing in an invasive blood pressure measuring system, disables the related alarms if a sample in a time sequence is larger than a mean value, and when it exceeds a predetermined limit, and when its slope is beyond another limit, and if all of these conditions apply for a certain time period. The end of an artifact is detected if the slope falls beyond a limit, a pulsation is detected, the absolute value is beyond a limit for a certain amount of time, or a long timeout occurs.

REFERENCES:
patent: 4223681 (1980-09-01), Sherman
patent: 4223682 (1980-09-01), Sherman
patent: 4667680 (1987-05-01), Ellis
patent: 4777959 (1988-10-01), Wallach et al.
patent: 5014714 (1991-05-01), Millay et al.
Biomedizinische Technik, vol. 33, No. 9, Sep. 1988, Berlin, DE pp. 210-214.

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