|
(b)(4).A manufacturing record evaluation was performed for the finished device lot, and no non-conformances were identified.Investigation summary: a failed suture needle was submitted for fractographic evaluation.Upon evaluation, a fracture was observed at small portion of the body of sample c.A microscope was used to examine the fracture surface and surrounding area of the needle.The evaluation revealed the fracture were composed of microvoid coalescence, which is evidence of a ductile overload failure.Mechanical damage observed coincidental to the fracture provides additional evidence that the failure was induced by mechanical deformation leading to ductile overload.This was a ductile fracture.The manufacturing records were reviewed, and the manufacturing/packaging criteria were met prior to the release of this batch.The evidence of this examination indicates that the breakage occurred at the tip of the needle during use due to tensile overload.There is no evidence of any material flaw or defect that would cause premature failure.In order to avoid this kind of damage grasp the needle in an area one-third (1/3) to one-half (1/2) of the distance from the attachment end to the point.Additional information was requested and the following was obtained: were there any unexpected outcomes or complications as a result of the prolonged surgery time? no further information is available.Was the patient treatment altered in anyway due to the prolonged surgery time? if yes, please explain.No further information is available.Device return status / follow up: when we send the sample to you, we will let you know its return date and tracking number.No further information will be provided.Note: events reported in 2210968-2019-87985 and 2210968-2019-87986.
|