Respiratory system for determining an opening pressure of a long system and maintaining the lung system open
First Claim
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1. A respiratory apparatus comprising:
- respiratory gas regulating means for delivering at least one predetermined inspiration pulse of respiratory gas to the lung system of a subject;
blood gas analyzer means, interacting with the circulatory system of the subject, for measuring a partial pressure of oxygen in the blood of said circulatory system and for emitting a measured signal indicative of said partial pressure of oxygen; and
control means, supplied with said measured signal, for determining an opening pressure of said lung system based on said measured signal and for controlling said regulating unit for altering said at least one predetermined inspiration pulse of respiratory gas as necessary to maintain said lung system open.
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Abstract
An arrangement for determining an opening pressure of a lung has a regulating unit which can deliver inspiration pulses to a patient'"'"'s lung system, a blood gas analyzer for measuring the partial pressure of oxygen in the blood of the patient'"'"'s circulatory system, and a control unit for determining an opening pressure based on the measured Pa O2. When the measured Pa O2 exceeds a predetermined threshold, the lung have opened sufficiently and a pressure value is correlated to the measured Pa O2 and defined as the opening pressure.
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7 Claims
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1. A respiratory apparatus comprising:
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respiratory gas regulating means for delivering at least one predetermined inspiration pulse of respiratory gas to the lung system of a subject; blood gas analyzer means, interacting with the circulatory system of the subject, for measuring a partial pressure of oxygen in the blood of said circulatory system and for emitting a measured signal indicative of said partial pressure of oxygen; and control means, supplied with said measured signal, for determining an opening pressure of said lung system based on said measured signal and for controlling said regulating unit for altering said at least one predetermined inspiration pulse of respiratory gas as necessary to maintain said lung system open. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification