Large-signal airway resistance measurement

Details Large-signal airway resistance measurement Large-signal airway resistance measurement

1987-07-22

1989-08-15

Cohen, Lee S.

Surgery

Truss

Pad

A61B 508

Patent

active

048565326

ABSTRACT:
A technique is described for converting small-signal measurements of airway resistance to large-signal resistance. In the preferred embodiment, the small-signal measurements are obtained by the use of an airways perturbation device which periodically increases the flow resistance.

REFERENCES:
patent: 3036569 (1962-05-01), Clements et al.
patent: 3857385 (1974-12-01), Hampl
patent: 4122839 (1978-10-01), Franetzki et al.
patent: 4220161 (1980-09-01), Berlin et al.
Johnson et al, "Airflow Perturbation . . . Animals", IEEE Trans Biomed Eng, vol. BME-31, No. 9, Sep. 1984, pp. 622-624.
Johnson, "Conversion . . . Measurements", IEEE Trans Biomed Eng., vol. BME-33, No. 8, Aug. 1986, pp. 803-806.

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