It was reported that while attempting to deployment, the handle became stuck.With more force there was a cracking sound.It was confirmed from the device history record that device had been manufactured with no significant issue and passed all the inspections successfully.Resistance can be felt due to pressure generated by patient's lesion during deployment.Outer sheath can be stretched and detached so it can cause deployment failure if deployment was tried by force in this situation.However, it is hard to identify the exact root cause since it is hard to reconstruct the situation at the time of procedure.It is impossible to identify the exact cause because the device was not returned.However; based on the description which was written that "while attempting to deployment, the handle became stuck.With more force there was a cracking sound", it is considered that delivery system was pressured due to patient's lesion during procedure and deployment was tried in that situation.It was hard to deploy due to pressure sheath, and the strong resistance occurred and the outer sheath was detached in the end, resulting in deployment failure.This complaint is assumed that it was malfunction due to pressed by patient's lesion, there will be continued to monitor the same or similar customer complaints.
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Stent placed from ge junction to gastric pylorus.While attempting to deployment, the handle became stuck.With more force there was a cracking sound.At no point was part of the stent deployed from delivery device.Stent and scope were removed from the patient.The procedure was completed another stent.According to gi tech who assisted doctor, confirmed that safety dial lock was unlocked prior to the deployment.Device was not saved.
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