Irrigation system with improved inflation control

An irrigation system for medical use comprising:

• a catheter;
• an irrigation liquid reservoir;
• a diaphragm pump that is electrically operated for pumping air into the irrigation liquid reservoir and/or into the catheter ;
• a pressure sensor associated with an output end of the diaphragm pump;
• and
• a controller for evaluation of an operation of the diaphragm pump, the controller being arranged to:
• measuring pressures at two opposite end positions for a diaphragm of the diaphragm pump in at least two different pump cycles of the diaphragm pump during the operation of the diaphragm pump;
• estimating a current effective output volume per pumping cycle for the diaphragm pump based on the measuring pressures;
• comparing the current effective output volume from the estimating to a previously determined, primary effective output volume;
• and
• provide an evaluation of the operation of the diaphragm pump.