Medical device lot #: unknown.It was reported that potential lot numbers for this incident may have been 5275717 or 5273583.Medical device expiration date: 9/30/2018 is the expiration date for both potential lot numbers, 5275717 and 5273583.A sample is available for evaluation.Upon completion of the investigation, a supplemental report will be filed.Device manufacture date: for lot number 5275717: 10/2/2015.For lot number 5273583: 9/30/2015.
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Results: two used and retracted units from an unknown lot number, a piece of paper top web from the lot number 5275717, and an opened package from the lot number 5273583 were received for evaluation.A visual inspection of the units showed that the needles were retracted and the safety activation buttons were depressed.No mechanical or physical damage to the springs or needle hubs was observed.The needles were pushed and repositioned to the out position; observed there was no mechanical/physical damage to the springs or needle hub or grip.There was no evidence of adhesive on the buttons, grips or hubs.A functional test (needle retraction) was performed by repositioning the needle to the out position and depressing the safety activation button at which point the needle retracted fully within the safety barrel.The retraction was successful, meeting no resistance.A review of the device history records revealed no irregularities during the manufacture of the potential lot numbers 5275717 and 5273582.Conclusion: an absolute root cause for this incident cannot be determined as the evaluated samples and review of the device history recorded revealed no irregularities.
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