CATHETER OR CANNULA ARRANGEMENT WITH UNIT FOR MONITORING LENGTH OF STAY OF THE SAME IN A BODY

摘要

The catheter or cannula arrangement (1) comprises a catheter or cannula (10) and a security unit (2) for monitoring a length of stay of said catheter or cannula in a body. Therein, the security unit (2) may in particular comprise. - A signalling unit (5) for emitting a signal referred to as first signal (S1); ); - an activation detection unit (3) for detecting a first event and for producing a signal referred to as second signal (S2) indicative of said detection; - a timer unit (4) receiving said second signal (S2) from said activation detection unit (3) and for starting a time duration measurement in reaction to said receiving said second signal (S2) and for producing and transmitting to said signalling unit a third signal (S3) as soon as the measured time duration is as large as or exceed said preset time span.