Apparatus for testing polymonary devices
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United States of America Patent
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-
Dec 12, 1995
Issued Date -
N/A
app pub date -
Mar 2, 1995
filing date -
Mar 11, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for testing pulmonary devices such as endotracheal tubes and connectors is disclosed. The apparatus forces a predetermined volume of air or gas through the pulmonary device in accordance with a preselected waveform in a first and/or second direction under conditions that simulate an in-patient use environment. The device also measures the amount of work required to force the air or gas through the device under selected conditions. In a preferred embodiment of the invention, the device produces a laminar or turbulent flow of gas.
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