For the 4.5 fr pediasat oximetry catheter kits, the physician has an impression that the outer diameter (od) of a dilator is slightly large for the od of 4.5 fr pediasat oximetry catheter.In previous cases, blood leaked from the gap between the catheter and skin after dilation of access vessel.Other than od mismatch between a dilator and a catheter, there was no abnormality or difficulty in devices reported.It is unknown how many cases there have been so far.Exact number of cases or details of individual cases could not be clarified.Exact model number in question was unknown; it was possible the issue occurred in both models, xt245sj and xt248sj.No case with severe complication due to blood loss or intervention including blood transfusion was reported.
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