(b)(4).The customer returned one 4-l catheter for analysis.Definite signs of use were observed within the catheter.Visual analysis revealed no obvious defects or anomalies with the returned catheter.The overall length of the catheter measured 169mm which is within the specification limits of 157-177mm per the catheter product drawing.The outer diameter of the catheter measured 2.958mm which is within the specification limits of 2.87-2.97mm per the extrusion product drawing.The outer diameter of the distal extension line measured 2.167mm which is within the specification limits of 2.13-2.21mm per the distal extension line product drawing.The inner diameter of the distal extension line measured 1.4732mm, which is within the specification limits of 1.42-1.50mm per the distal extension line product drawing.The catheter was functionally tested per the instructions for use (ifu) provided with this kit, which states , "flush each lumen with sterile normal saline for injection to establish patency and prime lumen(s)." the extension lines were flushed using a lab inventory syringe, and the lines flushed as intended.A lab inventory guide wire was also threaded through the distal lumen and passed with little to no resistance.No blockages were observed.The returned catheter was then tested per bs en iso 10555-1 section 4.7.1 (amrq-000071) which states that there shall be no liquid leakage in the form of one or more falling drops when pressurized to 300 kpa for 30 seconds.The catheter was connected to lab leak tester and pressurized to 300 kpa for 30 seconds.No leaks or blockages were observed from any region of the catheter.The ifu provided with this kit informs the user, "do not alter the catheter, guidewire or any other kit/set component during insertion, use or removal.Ensure catheter patency prior to use.Do not use syringes smaller than 10 ml (a fluid filled 1 ml syringe can exceed 300 psi) to reduce risk of intraluminal leakage or catheter rupture." the customer report of a blocked catheter could not be confirmed based on the investigation of the returned sample.The catheter and distal extension line passed all relevant visual, dimensional, and functional requirements and showed no evidence of a blockage or occlusion.Based on the customer report and the sample received, no problem was found with the returned sample.Teleflex will continue to monitor and trend on reports of this nature.
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