Our product evaluation laboratory received one model 777f8 catheter.The balloon appeared to be torn at 0.5cm proximal of the distal tip.At the same location, the catheter body and optical fibers were completely broken as well.Cross surfaces of the broken body tube were rough and uneven.Two possible lot numbers were provided by the customer and a device history records review was completed and documented that the lot numbers provided met all specifications upon distribution.The customer report of a balloon issue was confirmed.An engineering evaluation has been initiated to assess for any manufacturing-related processes which could be correlated to the complaint.Invasive procedures involve some patient risks.Although serious complications are relatively uncommon, the physician is advised, before deciding to insert or use the catheter, to consider the potential benefits in relation to the possible complications.The techniques for insertion, methods of using the catheter to obtain patient data information, and the occurrence of complications is well described in the literature.It is common clinical practice to check balloon integrity by inflating it to the recommended volume in order to detect any asymmetry or leakage condition before use of the catheter.When there is separation of the balloon or fragments from the pulmonary artery catheter, the retained fragment will embolize to the lungs.Due to the large surface area of the pulmonary vasculature, this is generally well tolerated, but can lead to complications such as infection or small infarction.Pulmonary complications may result from improper inflation technique.To avoid damage to the pulmonary artery and possible balloon rupture, the balloon should not be inflated above the recommended volume.It is unknown whether user or procedural factors contributed to the stated event.Complaint histories for all reported events are reviewed against trending control limits on a monthly basis, and any excursions above the control limits are assessed and documented as part of this monthly review.Lot 61229269 manufacturing date: 01/17/2017, expiration date: 01/12/2017, (b)(4); lot 61135056 manufacturing date: 11/22/2017 expiration date: 11/20/2019, udi: (b)(4).
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