(b)(4).The sample was returned for evaluation.The record card returned with the device indicates 17 uses.A visual exam was performed and it was observed that the airway of the tube was lightly discolored and it was verified that the cuff would not hold air when inflated.When the device was immersed in water, it was observed that there were air bubbles coming from the cuff.Upon closer observation, it was found that there was a cut on the surface of the cuff.The length of the cut was approximately 1mm.A device history record (dhr) review was performed and there were no issues found that could relate to the reported complaint.Based on the investigation performed, the reported complaint was confirmed.It was determined that the device was punctured/cut inadvertently during handling by the customer.Placing, washing, or autoclaving the device with items that have a hard or sharp edge/point should be avoided as it will have an adverse impact to the silicone material of the cuff and will permanently damage it.
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