One swan ganz catheter with attached monoject 1.5 cc limited volume syringe was returned for evaluation.The balloon inflated clear and concentric and remained inflated for 5 minutes without leakage; however, resistance was felt when air was injected into the balloon inflation lumen.Balloon deflation time was 17.98 seconds which is out of specification.The specification for balloon deflation without a syringe attached is 4 seconds.During balloon deflation test, an unknown clear liquid came out from the balloon inflation lumen.Per ifu, ¿using the syringe provided, inflate the balloon with co2 or air to the maximum recommended volume.Do not use liquid¿.All through lumens were patent without any leakage or occlusion.No visible damage to the catheter body, balloon, or returned syringe was observed.The sample of the unknown clear liquid in the balloon inflation lumen was sent to chemistry for ir spectrum test.The ir spectrum showed similar absorption characteristics when comparing to water.Balloon test was performed using returned syringe.Visual examination was performed under microscope at 10x magnification and with the unaided eyes.A device history record review was completed and documented that device met all specifications upon distribution.Customer report of balloon inflation and balloon deflation issues were confirmed.A device history record review was completed and documented that device met all specifications upon distribution.An investigation has been initiated to consider any potential manufacturing factors that may have contributed to this complaint and implement any necessary corrective actions.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.With any hemodynamic monitoring, patient parameters can change quickly and dramatically.Patient parameters should correlate with the patient¿s clinical manifestations.In this case it is unknown whether any user or procedural factors may have 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.
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