Qn#(b)(4).The sample was returned and sent to the manufacturing site for investigation.The manufacturing site reports: the complaint description is related to cuff leakage during use.Based on the complaint sample returned from customer, the sample was able to be deflated and inflated normally.There was no air leak observed when the sample was inflated.The sample was also immersed into water for air leak test; there was no air leak observed from the device.From the returned complaint sample, no air leak was verified.The root cause was classified as "no problem found".".
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