(b)(4).The tracheostomy tube, single cannula, was received for evaluation.A visual inspection was performed, and it was observed that all components were assembled properly in the tube, according to drawings.Performance tests of inflation and deflation were performed, and it was observed that the unit held the air.The sample was left inflated 24hours, according to process instructions, and no deflation was observed after this time.No failure mode was observed in the device, and the customer reported malfunction was not verified.
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