(b)(4).Evaluation is in progress, but not yet concluded.Per follow-up with field service representative (fsr), maintenance is performed per manufacturer recommendations.The fsr arrived at the user facility and could not verify any issues with cooler heater unit.The fsr replaced valve v1 as a precaution.The fsr completed inspection following repair and the unit operated to manufacturer specifications and was returned to clinical use.The suspect part was returned to the manufacturer for further evaluation.
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It was reported that during use of the device for a cardiopulmonary bypass (cpb) procedure, the cooler heater unit would not rewarm.The product was not changed out, as the issue resolved itself.The surgical procedure was completed successfully.There was no delay, no blood loss, nor adverse consequences to the patient.Per the clinical summary on (b)(6) 2016: according to the complaint record, during cardiopulmonary bypass, the cooler heater unit would not rewarm.It was discovered by the user that the water was flowing over the ice.The perfusionist (ccp) cycled back and forth between standby and rewarm and the problem eventually resolved itself.They continued to use the unit for the remainder of the case.The case was completed successfully, without delay and without associated blood loss.There was no harm observed.
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