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Blank fields on this form indicate the information is unchanged, unknown or unavailable.Investigation ¿ evaluation: it was reported by alberta children`s hospital that a tpn catheter (part number c-tpns-7.0d-65-redo) had rotating "clear rings" on both the yellow and blue lumens of the catheter.The patient arrived in clinic for an appointment with a parent.The patients' catheter was reviewed and on the yellow lumen, the clear ring around the catheter end was loose and rotated with light manipulation.It was not possible to pull the tubing apart from the clear ring and so it was not possible to assess the integrity of tubing underneath the "clear ring".No other damage with the catheter was identified.There was no procedure performed as a result of the failure.The nurse assessed the integrity of the catheter and educated the patient's mother about catheter care.A review of the complaint history, device history record, instructions for use (ifu), and quality control were conducted during the investigation.The complaint device was not returned for evaluation.A document based investigation evaluation was performed.A review of the device master record found that proper procedures are in place to identify and prevent this failure mode prior to device distribution.A review of the risk file found that the risks associated with the devices are acceptable when weighed against the benefits.A review of the device history record found no nonconformances associated with this device lot.At this time there have been 4 additional complaints on this device lot reported for the same failure mode by the same customer.There is no evidence to suggest there is any nonconforming product in house or out in the field or that the device was not manufactured to specification.Additionally, a review of the product labeling for the device was completed.The instructions for use state the following instructions related to the reported failure mode: "-silicone catheters are not designed for power injection.Catheter rupture may occur.Use of a 10ml syringe or larger will reduce the risk of catheter rupture.The following suggested catheter maintenance is also provided ¿.If catheter is not to be used immediately, its lumen should be maintained by continuous saline or heparinized saline drip or locked with heparinized saline solution.Normal saline lock is permissible if utilizing the clc2000 injection cap.Catheter heparinization should be determined by institutional protocol and clinical judgement.Heparin concentrations of 10 units/ml to 100 units/ml have been reported adequate to maintain lumen patency.Catheter lock should be reestablished after every use or at least every 24 hours if unused.Before using catheter lumen already locked with heparin, lumen should be flushed with twice the indicated lumen volume using normal saline.Lumen should be flushed with normal saline between administration of different infusates.After use, lumen should again be flushed with twice the indicated lumen volume using normal saline before reestablishing heparin or saline lock.Strict aseptic technique must be adhered to while using and maintaining catheter." based on the information provided, no inspection of the product, and the results of the investigation, a definitive cause for failure was not established.Appropriate measures have been taken to address this failure mode.A capa was previously opened to address this failure mode and it was found that the product line meets specifications, but that separation and leakage of the device is an inherent risk device usage.The appropriate personnel have been notified.Per the quality engineering risk assessment, no further action is required.Cook will continue to monitor for similar complaints.This report is required by the fda under 21 cfr part 803 and is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement contained herein is intended to be an admission that any cook device is defective or malfunctioned, that a death or serious injury occurred, nor that any cook device caused, contributed to, or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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