(b)(4).Batch # unk.As the device was not returned, an analysis investigation could not be performed.A conclusion could not be reached as to what may have caused or contributed to the event.The lot/batch was not provided; therefore, the manufacturing records evaluation could not be performed.
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It was reported that during a prostatectomy procedure, the instructor noticed that the trocar blade did not retract as usual.It was locked and the surgeon decided to change the product and open another trocar.The moment the instrumentation encased the trocar in the cannula, the blade advanced and was unable to disarm it.At that moment, it was requested the exchange of the material, avoiding damage to the patient.The device had not been inserted into the patient.There was no damage to the patient or procedure.
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