Systems for automatically removing fluid from multiple regions of a respiratory tract

A system for automatically removing fluid from multiple regions of a respiratory tract and lavaging an oral cavity portion of the respiratory tract, the system comprising:

• a controller comprising:
• controller circuitry,
• a first pressure sensor,
• a second pressure sensor,
• a third pressure sensor,
• a first port in communication with the first pressure sensor and configured to connect to a first fluid line,
• a second port in communication with the second pressure sensor and configured to connect to a second fluid line,
• a third port in communication with the third pressure sensor configured to connect to a third fluid line, and
• one or more valves configured to couple to a source of air pressure;
• a first optical flow sensor configured to couple to an outside of a first fluid line to detect flow within the first fluid line;
• a second optical flow sensor configured to couple to a second fluid line to detect flow within the second fluid line;
• a third optical flow sensor configured to couple to a third fluid line to detect flow within the third fluid line;
• wherein the first second and third optical sensors are housed separately from the controller;
• further wherein the controller circuitry is configured to detect when fluid lines are connected to each of the first, second and third ports, and to periodically apply negative pressure to each of the first, second and third ports when fluid lines are detected, and to stop applying negative pressure on the first port when the first optical flow sensor indicates there is no more flow, to stop applying negative pressure on the second port when the second optical flow sensor indicates there is no more flow, and to stop applying negative pressure on the third port when the third optical flow sensor indicates there is no more flow;
• further wherein the controller circuitry is configured to detect a blockage in the first fluid line based on the first pressure sensor and the first optical flow sensor, to detect a blockage in the second fluid line based on the second pressure sensor and the second optical flow sensor, and to detect a blockage in the third fluid line based on the third pressure sensor and the third optical flow sensor, and to clear a detected blockage.