Qn#(b)(4).The customer returned an opened hemodialysis kit, including one guide wire assembly, catheter, and product lidstock, for analysis.Definite signs of use were observed on the catheter.Visual analysis revealed that the guide wire contained multiple kinks along the body.The distal j-bend appeared misshapen but intact.Microscopic examination confirmed the damage and revealed that both welds were present and spherical.The kinks in the guide wire measured 333mm and 355mm from the proximal tip.The overall length of the guide wire measured 683 which is within the specification limits of 678mm - 688mm per the guide wire product drawing.The outer diameter measured 0.852mm which is within the specification limits of 0.838mm - 0.877mm per the guide wire product drawing.The returned guide wire was threaded through the returned catheter and a lab inventory arrow raulerson syringe (ars)/ 18ga introducer needle subassembly.The undamaged portions of the guide wire passed through the components with little to no resistance.Performed per instructions for use statement, "thread tip of catheter over guidewire.Sufficient guidewire length must remain exposed at hub end of catheter to maintain a firm grip on guidewire." a manual tug test confirmed both weld were secure and intact.A device history record review was performed, and no relevant findings were identified.The ifu provided with this kit informs the user, "do not apply excessive force in placing or removing catheter or guidewire.Excessive force can cause component damage or breakage.If damage is suspected or withdrawal cannot be easily accomplished, radiographic visualization should be obtained and further consultation requested." the customer report of a kinked guide wire was confirmed through the investigation of the returned sample.Visual analysis confirmed multiple kinks along the guide wire body.Despite this, the guide wire passed all relevant dimensional and functional requirements, and a device history record review was performed with no relevant findings.Based on the customer report and the sample received, unintentional use error likely caused or contributed to this event.Teleflex will continue to monitor and trend on reports of this nature.
|