Date of event: unknown.The date received by manufacturer has been used for this field.Medical device expiration date: unknown.Device manufacture date: unknown.(b)(4).Investigation summary: tech services spoke with the customer.Explained that she needs to freeze the tubes in a step down process, first to -20c for 24 hours, and then move them to -80c in a non-styrofoam rack.If she didn't allow the tubes to sit at rt to allow for cell lysis after the tube were initially drawn, she can allow them to sit after the tubes have thawed out.She found the handbook on the preanalytix.Com website.The glass tubes were cracking due to the customer not following the step down freezing process.Tech services spoke with the customer and informed them of the correct process to not crack the tubes.Complaints received for this device and reported condition will continue to be tracked and trended.Information will be captured on trend reports and monitored.The bd business team regularly reviews the collected data for identification of emerging trends.
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