Reliability analysis: inspected (b)(4) opened/used sensors and performed a visual inspection and found (b)(4) sensors with the cannula retracted inside of the sensor base.They also found the cannula to be damaged (broken) and the broken part was missing.Among the (b)(4) remaining sensors, they found the needle hubs were separated from the sensor base.They were unable to confirm that the customer received the sensors in said condition due to the customer having returned opened/used sensors.Customer also had a complaint against the sen serter.
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