Calibration method for single-breath carbon monoxide lung diffusing capacity test system
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United States of America Patent
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Apr 19, 1994
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app pub date -
Jan 25, 1993
filing date -
Jan 25, 1993
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Abstract
A method for testing/calibrating a system for performing single-breath carbon monoxide lung diffusing capacity measurements. By simulating a patient's lungs using a precision syringe for drawing a preanalysis gas mixture through the equipment (inspiration) and a modified scuba regulator valve or a solenoid valve with a purge button to simulate the expiration of a postanalysis gas through the system into a sampling chamber, the DL.sub.co measuring system performance can be assessed as a whole rather than as a collection of individual components.
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