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Updated fields: d4, d9, g3, g6, h2, h3, h6, h11
the hermetic lumbar catheter (ins5010) was not returned, and no photos of the reported condition (catheter sheared) could be evaluated/verified.The device history record (dhr) review was not possible since the product¿s lot number was not reported.Although the lot number is unknown, each tubing lot must comply with incoming requirements including break load force, elongation, and raw material tensile strength.Additionally, the product¿s instructions-for-use (ifu) provides the following cautions:
¿ silicone tears and cuts easily.Use rubber shod forceps when handling silicone catheters.¿ to avoid damage to the catheter, do not withdraw the guidewire without first removing the tuohy needle.¿ hold the catheter securely at the exit site during needle and guidewire removal to prevent catheter dislodgement.¿ follow these points to aid needle and guidewire removal and to prevent damaging the catheter:
o hold the entire length of the catheter straight during needle and guidewire removal
o do not squeeze the catheter.Excessive compression will increase the difficulty of guidewire removal.O withdraw the guidewire slowly.O if the catheter becomes twisted or seizes the guidewire, stop.Allow the catheter to relax and return to its original shape.Slowly start again, being sure to hold the catheter at the exit site.¿ to avoid possible transection of the lumbar catheter, the catheter should never be withdrawn though the tuohy needle.If the catheter needs to be withdrawn, the tuohy needle and catheter (with guidewire if used) must be removed simultaneously.The complaint could not be confirmed, as the device was not returned for evaluation and no physical evidence was available to substantiate the reported event.Owever, based on the available information, a potential root cause is improper catheter positioning or withdrawal technique.Specifically, catheter damage may occur if the catheter is withdrawn through a tuohy needle during repositioning or removal, allowing the needle bevel to partially or completely shear the catheter.If such damage is not detected during the procedure, it may only become apparent upon final catheter removal.Should additional relevant information become available, this complaint will be reopened and further evaluated as appropriate.Trends related to this and similar issues will continue to be monitored.Based on the information currently available, this complaint is considered closed.
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