Pulse wave data analyzing method, system, and program product

Details Pulse wave data analyzing method, system, and program product Pulse wave data analyzing method, system, and program product

2006-10-05

2010-06-01

Nasser, Robert L (Department: 3735)

Surgery

Diagnostic testing

Cardiovascular

C600S485000, C600S509000, C600S504000, C600S502000, C600S521000

Reexamination Certificate

active

07727158

ABSTRACT:
There is provided a pulse wave data analyzing method for extracting vital information out of pulse wave data concerning a living body. The method comprises a noise removal step of: detecting bottom values and peak values along a time axis in a time-series manner out of pulse wave data obtained by sequentially measuring a pulse wave of a subject for a predetermined period; making pairs with respect to the bottom values and the peak values adjacent to each other on the time axis to obtain bottom-to-peak amplitude values along the time axis, the bottom-to-peak amplitude value being a difference between the bottom value and the peak value in each of the pairs; and comparing each set of the two bottom-to-peak amplitude values adjacent to each other along the time axis to remove the bottom value and the peak value relating to the smaller bottom-to-peak amplitude value in the each set as a noise, if a ratio of the one of the two bottom-to-peak amplitude values to the other one of the two bottom-to-peak amplitude values is larger than a predetermined value.

REFERENCES:
patent: 6095984 (2000-08-01), Amano et al.
patent: 6161038 (2000-12-01), Schookin et al.
patent: 6993378 (2006-01-01), Wiederhold et al.
patent: 2001-70265 (2001-03-01), None

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