It was reported that during a surgery, coagulation can not be achieve despite the administration of protamine on graft.Intensive bleeding from the inside to the outside of the tubular graft was observed.The patient died post op day 1, however the surgeon indicated that the death of the patient is not related to the device.
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(b)(4).A remaining fragment of the involved device was returned for examination and it was sent to an external and independent laboratory.The objective of the study was to evaluate the presence of any structural abnormality visible on the external side of the returned graft and to evaluate the presence of collagen material.The analysis consisted of a macroscopic observation of the fragment and a scanning electron microscopy (sem).The sem analysis pointed out an abundant infiltration of collagen material with no obvious abnormality such as tears, loss of textile cohesion, holes and signs of cut.The sem analysis corroborated the macroscopic analysis.No conclusion can be drawn.However, the conducted investigation and testing performed would tend to indicate that the product was not defective.
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