Fix it - and be caught on CCTV tampering with medical equipment.
Ignore it - and live with the fact that it could have led to a mis-diagnosis or incorrect treatment and so killed someone.
Demand that the equipment is impounded - and volunteer yourself for a colonic lavage.
Tell someone - and accept that it's their equipment and their decision if they choose to carry on using it - or they might even ask you to sort it out, since you seem to know so much about it
