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One device was returned for evaluation.Functional testing was performed, and the device passed the test.Visual inspection was performed, and it was found that the front panel was bent, relief/alarm pressure knob was missing, serial number label was illegible, and patient press gauge hand was defective.The root cause was that the ventilator was mishandled by customer.The faulty battery holder cap, filter was sintered, mri battery, o-rings, patient press gauge, blanking cap and serial number label were replaced.Preventative maintenance was performed, device was recalibrated, cleaned and affixed new service label.The service history review identified there was no indication that the complaint was related to a service of the device within the review period.
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