Anesthesia ventilator with automatic control of the selected ventilation mode
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Oct 18, 2001
app pub date -
Feb 7, 2001
filing date -
Feb 7, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An anesthesia apparatus of the type with several ventilation modes comprises a main gas circuit (1) formed by an inhalation branch (1a) and by an exhalation branch (1b), a gas accumulation member (4) whose internal volume varies and communicates with the main circuit (1), and relief valve means (6) which have an adjustable pressure set-point level and are arranged on the main circuit (1). In addition, detection means (11, 12, 13, 14) make it possible to determine an information item relating to the gas entering and/or leaving the accumulation member (4), information-processing means (10) make it possible to process said information item in order to deduce from it information concerning ventilation mode, and control means (15) act on the relief valve means (6) in order to automatically adjust the pressure set-point level of said relief valve means (6) as a function of the information concerning ventilation mode delivered by the processing means (10).
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