Patent ID: 8323274

Claim:
A device for cooling ablation catheters, comprising: a coolant pump ( 2 ) configured to supply a liquid cooling medium on demand with a low flow rate and an elevated flow rate in a connecting line ( 2 a ); a controller ( 2 e ) which controls the coolant pump so that the coolant pump supplies either the low flow rate or the elevated flow rate of the liquid cooling medium; and, said controller further comprising an interface ( 2 b ), which is configured to detect a characteristic state for an activity of a catheter at an input end of said interface ( 2 b ); to output a request signal that represents the characteristic state to the controller at an output end of said interface ( 2 b ); wherein the controller ( 2 e ) sends a control signal to switch from said low flow rate to said elevate flow rate to the coolant pump ( 2 ) when the request signal from the interface ( 2 b ) is such that the request signal represents a value that exceeds a threshold value of the characteristic state detected at the input end of said interface ( 2 b ).