User sucked the hemorrhoids in place and rotated the spool releasing the band, but the band has no elasticity.Band didn't shrink.User changed another same device and checked the function while found out the band didn't shrink neither.See pr298953.User then changed another brand of similar device to complete the procedure.A section of the device did not remain inside the patient¿s body.The patient did not require any additional procedures due to this occurrence.According to the initial reporter, the patient did not experience any adverse effects due to this occurrence.".
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Device evaluation: the hmbl-4-tri device of lot number c1613056 involved in this complaint was not returned for evaluation.With the information provided, a document based investigation was conducted.(b)(4) hmbl-4-tri devices of the same lot number c1613056 were returned unused.This file is linked to complaint file (b)(4), where device of same rpn but different lot number was checked by physician by deploying on to an open hand as shown in the attached video will be investigated in that file (b)(4).This file (b)(4) will cover the investigation into device used in the procedure- "user sucked the hemorrhoids in place and rotated the spool releasing the band, but the band has no elasticity.Band didn't shrink." documents review including ifu review: 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 c1613056 did not reveal any discrepancies that could have contributed to this complaint issue.The review of relevant manufacturing records, confirms the failure mode has not previously occurred with the current lot number.Based on the information available to date, there is no evidence to suggest that there are any manufacturing issues associated with lot number c1613056.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 ¿ maintain suction of haemorrhoid by keeping suction port covered.Deploy band by slowly rotating suction spool downwards until tension is released.¿ ¿uncover suction port of ligator to relieve suction on haemorrhoid.This will allow ligated haemorrhoid to be released from tip of device.¿ there is no evidence to suggest that the customer did not follow the instructions for use.Root cause (possible): 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.Summary: customer complaint is confirmed based on customer 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 emerging trends.
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