(b)(4).(b)(6).Device evaluated by mfr: returned product consisted of the rotalink burr catheter and advancer.Microscopic and visual examination of the handshake and coil of the catheter inside the sheath revealed that the coil was bunched and stretched within the sheath.There was damage to the inside of the sheath.The knob on the advancer was in the backward position.The rotawire used in the procedure was not returned for product analysis, so functional testing was completed with.009¿ rotawire.The rotawire was inserted through the advancer with no issue.The rotawire was not able to advance through the burr unit due to the coil and handshake position.The manufacturing batch record review confirmed that the device met all material, assembly and performance specifications.The most probable root cause is considered handling damage as the event occurred without direct patient contact.(b)(4).
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