The lot number of the device was not provided nor recorded by the user facility.The device was returned to the manufacturer for evaluation.The device was attached to a roller pump and tested at both high and low speeds, but no leaks were observed.The device was tested a various pressure settings of negative and positive pressures and a leak was observed at a positive pressure of 1012mmhg.This device is designed to provide pressure relief at a negative pressure of -200mmhg and at a positive pressure of <1300mmhg.Visually there was dried/crystallized blood found on the umbrella valve edges.The cause of the reported defect could not be determined.The complaint condition could not be duplicated.Quest medical, inc.Has limited information related to the patient's medical history and is unable to form an opinion as to the relevancy of the patient's history to the event reported.Quest medical, inc.Defers to the patient's physician regarding medical history.
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