Medical ventilator
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United States of America Patent
Stats
-
Dec 21, 1993
Grant Date -
N/A
app pub date -
Jan 24, 1992
filing date -
Jun 7, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An oscillatory medical ventilator comprises a ventilator duct having one end for attachment to the a patient tube. A gas supply jet is mounted in a bearing block for rotation by an electric motor. The jet has a gas supply passage to which driving or respiratory gas is supplied continuously during rotation of the jet by a gas supply chamber encircling a shaft of the jet and communicating with the passage through radially extending openings in the wall of the shaft. A cyclically varying pressure at one end of the ventilator duct is thus produced upon rotation of the jet to cause alternating inflation and deflation of the lungs with respiratory gas which is supplied either by the jet or an independent source connected to the patient tube.
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Family
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