Qn # (b)(4).The customer returned one arterial catheterization device for evaluation.Signs of use were observed inside the device.The guide wire was returned partially advanced through the needle cannula.The guide wire was fully retracted out of the needle cannula.Visual inspection revealed several kinks and bends in the guide wire.Microscopic examination confirmed the damage.The distal weld was present and observed to be full and spherical.Significant amounts of dried biomaterial were observed on the guide wire and inside the needle cannula.A bend was observed in the needle the main kinks in the guide wire were located 1-14mm from the distal end.The guide wire length measured 4 1/4" which is within the specifications of 4 6/32"-4 12/32" per product drawing.The guide wire outer diameter measured 0.44mm which is within the specifications of 0.432-0.457mm per product drawing.After the blockage in the cannula was cleared, the cannula inner diameter at the tip measured 0.0230", which is within the specification limits of 0.0226"-0.0240" per the cannula product drawing.Functional inspection of the returned device was performed per the instructions for use (ifu) provided with the kit which states, "stabilize position of introducer needle and carefully advance guidewire into vessel using guidewire handle." the returned guide wire could not be reinserted into the cannula due to the damage.A lab inventory guide wire was inserted through the needle cannula.Resistance was observed, and biomaterial was observed exiting the needle cannula during insertion.Once the biomaterial was cleared, no resistance was observed and the device functioned as expected.No resistance was observed between the guide wire handle and the device chamber.A device history record review was performed with no relevant findings.The ifu provided with this kit warns the user, "warning: to reduce the risk of guidewire damage, do not retract guidewire against edge of needle while in vessel.Precaution: if resistance is encountered during guidewire advancement do not force feed, withdraw entire unit and attempt new puncture." the customer report of a kinked guide wire was confirmed through complaint investigation of the returned sample.Visual inspection revealed several kinks and bends in the guide wire.Resistance between the guide wire and needle cannula was observed, and it was determined that an accumulation of dried biomaterial inside the cannula was the likely cause of the resistance.The guide wire and needle met all relevant dimensional requirements and a device history record review did not reveal any manufacturing issues.Based on these circumstances, unintentional use error likely caused or contributed to this event.Teleflex will continue to monitor and trend for complaints of this nature.
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