Conclusion detail: a device history records (dhr) review was performed for part number 00-2555-020-05, lot 63182496.This device was manufactured and placed into inventory on dec 1, 2015.There were no reported non-conformances or relevant request for deviations (rfds) or engineering change notices (cns) noted on the dhr.Product number 06-0020-013-65, 125¿ od x.0625¿ id x 42¿ length.1/8¿ drain, rad.From lot number 63137019 was used on the above assembly.These parts were manufactured and placed into inventory on aug 22, 2015.There were no reported non-conformances or relevant rfds or cns noted on the dhr.No product was returned for evaluation.It was reported that the patient had a total shoulder arthroplasty on (b)(6) 2016 and the physician placed a drain in the incision.The physician pulled the drain out the next morning and it broke with a piece still in the patient.Patient returned to surgery on (b)(6) 2016 to remove the remaining piece of the drain.Neither physician nor the surgery staff retained the piece of the drain for further evaluation.Without the actual device for evaluation and with just the available information the event cannot be confirmed and determination of a specific root cause for the breakage is not possible.The drawing requirement for the perforated drain specifies a tensile breaking strength for the tubing at 20.0 pounds per square inch and 9.0 pounds per square inch at the perforations.All testing for the tubing was performed and was acceptable for the reported lots.There are too many unknown factors that could account for the drain breaking.Most likely, the drain was either placed and arranged in the wound site or removed from the wound site using a surgical instrument.The instrument could have weakened the tubing¿s tensile strength where it clamped onto the tube.Most likely the drain broke at a perforation which is the weakest area of the tubing.In addition, the use of an instrument to remove the drain can make it difficult for the user to maintain an even tension and cause the pull pressure to exceed the 9.0 pounds per square breaking strength at the perforations.Recommended actions: none - severity and frequency do not warrant further actions.
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