Due to the blockage that was found in the cannula the patient was having trouble breathing with the cannula.The tubing may have an occlusion likely occurring from the mek dipping bonding process.The cannula assembly is a manual operation with 6+ bonds.Low/no mek resulting in a disconnection does occasionally occur.This risk is identified and mitigated in the risk analysis.The complaint history was reviewed, there was a similar complaint from the same customer (b)(4).In the past 24 months there were 3 complaints related to this issue with the 16soft family.Further evaluation with the dhr review showed sampling plan showed no errors, no non conformances, final inspection also showed no errors.Without confirmation the most likely cause is that during the production of the lines the resin did not have enough time to rest/cool after being extruded, so when the device that was coiled up too tightly the kink that formed became permanent after cooling (ai-16soft-25).For risk assessment, in rma-20017a, line r30 for "tubing kinking" and "low oxygen delivery" accurately reflects the complaint.S=8, o=2, rpn=16, rc=1.Severity of 8 calls for an escalation to capa.
|