(b)(4).The device was not returned for analysis.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot.Additionally, a review of the complaint history identified no similar incidents reported from this lot.Per the mitraclip nt system instructions for use, "rotate the +/- knob in the ¿+¿ direction until the guide is curved to approximately 80 degrees." based on information reviewed, it appears that the reported improper or incorrect procedure or method appears to be due to overturning the knob that likely resulted in cable break.All available information was investigated, and the reported cable break appears to be related due to failure to follow steps.There is no indication of a product issue with respect to manufacture, design or labeling.
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This is filed to report the cable break.It was reported that this was a mitraclip procedure to treat grade 4 degenerative mitral regurgitation (mr).During device preparation of the steerable guide catheter (sgc), the technician inadvertently over-turned the plus knob resulting in a suspected cable break.The sgc had a curve before the suspected cable break, then it lost its curve.There was no patient involvement with the first sgc.Another sgc was used to complete the procedure without further incident.Mr was reduced to grade 2.There were no adverse patient effects and no clinically significant delay in the procedure.There was no additional information provided.
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