Lot #: correction from unk to 15d002.Exp date: correction from na to 3/26/2016.Asp investigation summary: the investigation included a review of the batch history record (bhr), trending of lot number, system risk analysis (sra) and visual analysis.The dhr was reviewed and the involved lot met manufacturer specifications at the time of release.No anomalies were observed that would contribute to the customer's experienced issue.Trending analysis by lot number was reviewed from 01/08/2015 to 07/07/2015 and trending was not exceeded.The sra indicates the risk associated with exposure to toxic or corrosive material is "low." a visual inspection of the cassette identified the sleeve of the cassette was found to be open¿specifically, it was torn along one end of the cassette.Upon inspection of the individual peroxide cells, none exhibited any obvious signs of puncturing, like damage to the plastic cell housing.It should be noted that there may have been puncturing in the plastic creases separating each cell, but nothing visually identifiable.Additionally, seven of the cells were completely empty, while three cells were full.Apart from the corrosion of the label, there were no visible signs of damage to the cassette itself.The assignable cause of the issue could not be determined.Visual analysis of the returned product noted that upon inspection of the individual peroxide cells, none exhibited any obvious signs of puncturing, yet, 7 of the 10 cells were confirmed to be empty.The cassette was not tested for functionality in a sterrad unit due to the confirmed leakage.The supplier's batch record review found no anomalies that would contribute to the issue, and lot history review did not exceed trending for this lot.A customer letter and a copy of the instructions for use (ifu) were sent to the customer instructing them to always wear personal protective equipment when handling a used cassette.The issue will continue to be tracked and trended.
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