(b)(4).Device evaluated by mfr: returned product consisted of a jetstream xc-2.4 atherectomy catheter in one piece.The guidewire lumen and the catheter shaft were checked for damage.The baton and part of the aspiration tubing were cut from the device by the customer site before returning.The guidewire was not returned with the device.The device showed a severe kink in the catheter shaft approximately 23cm from the tip.A.014 test guidewire was inserted into the device and traveled as far as the kink that was noticed in the device and stopped.The kink would be consistent with the customer feeling a restriction or an indication of a guidewire sticking issue.The most likely cause of the kink was pushing, pulling and torqueing of the device.The device could not be functionally tested due to the damage.Inspection of the remainder of the device, apart from the observed damage, revealed no other damage or irregularities.The investigation conclusion is operational context as the product meets the design & manufacture specification but due to anatomical/procedural factors encountered during the procedure, performance was limited.(b)(4).
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