Gas monitor having trend indicators

Details Gas monitor having trend indicators Gas monitor having trend indicators

1986-12-29

1987-10-06

Levy, Stewart J.

Measuring and testing

Gas analysis

Gas chromatography

128635, 204406, 340633, G01N 710

Patent

active

046974504

ABSTRACT:
An improved device for determining the trend of the partial pressure of a gas, such as oxygen or carbon dioxide, which diffuses outwardly through a patient's skin. The device, such as a cutaneous gas monitor, generates over time a series of partial pressure input values that are compared to one another for determining a trend in the partial pressure. This trend is communicated to the operator of the device.

REFERENCES:
patent: 4028057 (1977-06-01), Nelson
patent: 4207146 (1980-06-01), Kunke
patent: 4340885 (1982-07-01), Chavis et al.
patent: 4355533 (1982-10-01), Muldoon
patent: 4384283 (1983-05-01), Drope et al.
patent: 4452672 (1984-06-01), Parker et al.
Article by Dr. A. M. Calverd, entitled, "Trend Indication for Digital Displays", from Design Ideas, Aug. 1982.

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