(b)(4).The device involved in this complaint was not returned for evaluation, a document based review was complete with the available information.Images were provided of the device showing some black bands that had slipped off the hemorroid and retained inside the barrel.Prior to distribution hmbl-4-tri devices are subjected to a visual inspection and functional checks to ensure device integrity.These inspections and functional checks are outlined in internal procedures in place at cirl.A review of the manufacturing records for hmbl-4-tri of lot number c1610705 did not reveal any discrepancies that could have contributed to this complaint issue.The review of relevant manufacturing records, confirms the failure mode has also occurred with the current lot number for two additional files all 3 complaints are from the same hospital.Based on the information available to date, there is no evidence to suggest that there are any manufacturing issues associated with lot number c1610705.The shortshot saeed hemorrhoidal multiband ligator with triview anoscope is used to ligate haemorrhoids facilitated by an anoscope.As per the instructions for use, ifu0030-7, users are advised of the following: "if the package is opened or damaged when received, do not use.Visually inspect with particular attention to joints, cracks or breaks.If an abnormality is detected that would prohibit proper working condition, do not use.¿ the ifu states that "the device may be used with an alternative anoscope if preferred.If an alternative endoscope is used, please consult relevant packaging, label and instructions for use".However, as a precaution, it is recommended that the "inner lumen diameter of the anoscope must be compatible with shortshot maneuvers within lumen of alternative anoscope with adequate clearance to avoid dislodging bands".In addition, "banding should begin at the most proximal location from the anal sphincter and proceed distally because passing shortshot over a previously placed band may dislodge the band".A definitive root cause could not be determined from the available information.A possible root cause could be attributed to user technique; if suction was not released or too much tissue was sucked into the tip of the device, this may have caused the bands to slip off the haemorrhoid as the tissue may not have bulged around the band holding the bands in place, or if the user did not begin at the most proximal location from the anal sphincter and proceed distally resulting in passing the shortshot over a previously placed band this may dislodge the band.Another possible cause for this complaint may be that the device was damaged during transportation or storage.However, as the conditions of transport or storage are unknown, it is not possible to conclusively determine this as a root cause of the complaint.The complaint is confirmed based on the customer's testimony.According to the information reported, the patient did not experience any adverse effects due to this occurrence.Complaints of this nature will continue to be monitored for potential emerging trends.
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As reported to customer relations: "customer reported hemorrhoid bander issues to [dm].Customer and dm believe, based on usage, that it is a suction issue with the "cap"; when they go to deploy a band the band slips off the hemorrhoid.Procedures were all completed with additional devices from the same gpn.".
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