Dynamic Pressure Response and Catheter Occlusion System

A method of draining fluid from a patient, comprising:

• providing a drainage system comprising:
• a drainage tube extending between a catheter and a collection container, wherein the drainage tube, the catheter and the collection container are in fluid communication with each other;
• a pressure sensor operatively coupled to the drainage tube to measure pressure within the drainage tube;
• an input airflow device coupled to the drainage tube at a distal end to provide airflow into the drainage tube;
• a valve coupled in line with the drainage tube between the catheter and the input airflow device, wherein the valve is configured to selectively allow fluid flow through the valve when open and prevent fluid flow through the valve when closed;
• and
• an output airflow device coupled to the drainage tube at a proximal end, the output airflow device configured to draw airflow out of the drainage tube;
• and
• a controller including control logic, the controller coupled to the pressure sensor, the input airflow device, the output airflow device, and the valve;
• acquiring pressure data from the pressure sensor;
• generating one or more pressure parameters from the pressure data;
• comparing the one or more pressure parameters with one or more corresponding pressure parameter limits;
• and
• activating the input airflow device when at least one pressure parameter exceeds at least one of the one or more corresponding pressure parameter limits.