Investigation ¿ evaluation: a review of complaint history, the device history records, documentation, drawings, manufacturing instructions, quality control data, and specifications was conducted.Three cook silicone balloon hysterosalpingography injection catheters were returned for evaluation.Device #1, this device was returned with the balloon partially inflated.A functional test was performed.This balloon was found to inflate and deflate fine.Device #2, a functional test was performed on the balloon.The balloon was inflated fine; but it was noted that a lot of pressure was needed to depress the plunger to deflate the balloon.Device #3, a functional test was performed and the balloon inflated and deflated without issue.The black plunger had to be depressed completely for complete deflation.There is no indication that a design or process related failure mode contributed to this event.A review of production and quality documentation did not identify any specific issues with current manufacturing or quality controls that may have contributed to this incident.The device history record was reviewed and a non-conformance issue was identified.All non-conforming product was reworked.A review for additional complaints for this device lot revealed this complaint to be one of two (2) complaints associated with lot number 8139263.Both complaints are from the same customer.Based on the information provided, evaluation of the returned product and the results of our investigation, the likely root cause is due to the user's technique in handling the product.Measures have been initiated to address this failure mode.Cook medical has notified the appropriate personnel and will continue to monitor this device via the complaints database for similar complaints.
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