Wave-based patient line blockage detection

A system comprising:

• a medical device comprising:
• a medical tube having a proximal end connected to an outlet of the medical device;
• and
• a pressure sensor mounted at the proximal end of the medical tube, the pressure sensor configured for measuring a plurality of pressures at the proximal end of the medical tube;
• and
• a computing device comprising one or more processors, the one or more processors configured for:
• determining one or more elapsed times between local extrema of the measured pressures;
• and
• determining a location of an occlusion in the medical tube based on the one or more elapsed times,
• wherein the computing device is remote from the medical device.

A system comprising:

• a medical device comprising:
• a medical tube having a proximal end connected to an outlet of the medical device, the medical tube having a plurality of zones;
• and
• a pressure sensor mounted at the proximal end of the medical tube, the pressure sensor configured for measuring a first pressure and a second pressure at the proximal end of the medical tube;
• and
• a computing device comprising one or more processors, the one or more processors configured for:
• determining an elapsed time between the first pressure measurement and the second pressure measurement;
• and
• determining in which of the plurality of zones an occlusion is located based on the elapsed time,
• wherein the computing device is remote from the medical device.