Yes. I have a problem with infusion pumps and cases cracking. They have all cracked in exactly the same place and initially I suspected a stress fracture but the company have concluded from their investigation that it is the wipes that staff use to clean them. These wipes contain benzalkonium chloride which can attack plastic. It does specifically mention in the cleaning instructions not to use cationic surfactants (such as benzalkonium chloride). If this is the case, as these wipes contain <1% benzalkonium chloride, why does it always crack in exactly the same area? I have instructed staff to use alternative products but unfortunately these wipes are everywhere and they will always choose the easiest method of cleaning that is to hand. It is interesting to note however, that the manufacturer has now changed the makeup of the plastic they use for the case.