Product complaint # pc-(b)(4).Date sent to the fda: (b)(4) 2018.A needle piece and five unopened samples of product were returned for analysis.During the visual inspection of the needle, the swage area was broken; this caused the suture detachment.In the inspection of five unopened samples, no defects were found on the package.The sample was opened, and the swage and attachment area were as expected.The suture was dispensed without problems and examined along the strand and no defects were observed.A functional test was performed and the pull force was above the minimum requirements.The manufacturing records were reviewed, and the manufacturing/packaging criteria were met prior to the release of this batch.Per the condition of the needle, the assignable cause of pull off suture needle is needle breakage.The assignable cause of the breakage needle cannot be concluded.It has been forwarded for further analysis.Per the condition of the five unopened sample,the assignable cause of pull off suture needle is needle no attachment defects were found, and the tested sample met the finished goods requirements.The product upon which this medwatch is based has been received, however, the product evaluation is not yet complete.Any further information derived from the evaluation will be submitted in a supplemental 3500a form.
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Product complaint # pc-(b)(4).A failed suture needle was submitted for further fractographic analysis to assess the fracture mode of the failure.A fracture was observed at the suture attachment of the needle.One side of the needle was received, the mating fracture surface was not provided for this evaluation.A microscope was used to examine the fracture surfaces and surrounding area of the needle.The fracture surfaces were examined in multiple locations in order to determine the fracture mode.Evaluation revealed the fracture was 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 attachment area of the needle during use due to tensile overload.There is no evidence of any material flaw or defect that would cause premature failure.
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