The referenced device was returned and evaluated for the reported, "trocar was in the patient in its sleeve and was difficult to remove." the device was returned in the original tray with all the accessories.A physical inspection noted that the inner self-seal was damaged inside the cannula.A piece of the seal was stuck to the trocar knife.The cap was removed from the cannula and the insert seal was confirmed to be in place and free from damage and therefore was not contributing to the reported phenomenon.The included reducer was in good condition and free from damage.In addition it was the stopcock was broken off the cannula.The outer diameter of the trocar knife was within specification.The inner diameter of the cannula was also within specification.Upon further inspection of the self-seal it was noted that fragments of the seal were missing.The suspected missing fragments were not returned for evaluation.The most probable cause of the damage to the self-seal may occur if the trocar knife is not inserted concentric to the trocar sleeve.The end of the knife is sharp and may damage the inner seal if not properly inserted.A dhr review for the concerned lot indicated that the product was manufactured and tested in accordance with all applicable procedures and met all final product release criteria.Based on the investigation, the most probable cause of the reported event can be attributed to the operator's technique.
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The manufacturer was informed that at the beginning of a therapeutic bilateral tubal ligation procedure, the surgeon had a difficult time removing the trocar from the cannula.During the process of trying to remove the trocar forcefully, the stopcock on the trocar broke off.There was no tissue trauma or unexpected bleeding to the patient reported.No device fragments fell into the patient.The procedure was completed using the same equipment from the kit as the small white ring holder was used to plug the cannula and maintain pressure in the abdominal cavity to complete the procedure.The surgical time was extended by approximately less than 30 minutes due to the complication with the trocar.The patient did not require any additional treatment or a longer stay as the patient was discharged per normal standards.The whole kit was inspected prior to use and no anomalies were noted.
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