(b)(4).The sample was returned for evaluation.The sample was received with the syringe.A visual exam was performed and no defects were observed.The sample was then subjected to a cuff leak test with two different types of syringes (the syringe that was returned with the device and a manufacturing syringe).The cuff was able to inflate and deflate; however, slight force was needed to insert the syringe into the cuff pilot valve.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 could not be confirmed.There were no issues found with the returned device.The device was found to be functional.
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