On the packaging ofallMillar Mikro-tip Catheters, there is a year and month listed as pictured in the image below.
This date is the recommended Use By Date for the catheter，标志着导管制造后三年的结束。随着时间的推移，导管施工中使用的材料降解，这种降解可能会在上述三年的上述期间开始影响导管的功能。对于可维修的导管，该日期还表示导管可修复的寿命的终结。If the catheter fails after this time period, there is no evaluation or repair option,even if the catheter fails on the first use.
Note: the manufacturer's warranty period for a catheter is not related to this date and varies between different catheter models. The manufacturer's warranty period begins on the date the catheter is shipped to a customer.
