Since no lot number was identified, a manufacturing device history record (dhr) review or product/process changes review for the involved lot number could not be performed.However, all dhrs are reviewed for accuracy prior to product release.One used palindrome catheter was received for analysis and investigation.The catheter was returned inside a plastic bag and it presented signs of use.An underwater test was performed and a leak below the hub at the shaft of the catheter could be identified.An ishikawa diagram was used to determine the potential causes for this event.Multiple components are used in the manufacture of this product.Components properties are tested by the suppliers and there are controls in place in the manufacturing site to prevent non-conforming material from being used.Through visual evaluation it was observed that the catheter was cut at the shaft of the catheter.Due to the appearance of the catheter received it is possible that the catheter was damaged by instruments with sharp or rough edges during clinical use or use of cleaning agents, resulting in a catheter leakage.Additionally the catheter was in use for an undetermined time without issues, which implies that the issue occurred after customer manipulation.It is important to consider that the instructions for use (ifu) warn that clamping the catheter repeatedly in the same spot could weaken the tubing and to change the position of the clamp regularly to prolong the life of the tubing.It states to avoid clamping near the adapter and hub and exercise caution when using sharp instruments near the catheter.The ifu warns that the catheter tubing can tear when subjected to nicks, excessive force, or rough edges and not to use acetone on any part of the catheter.Moreover, the reported condition found caused a leak which would be identified during assembly operations, since manufacturing performs 100% pressure testing during production.The reported condition has been confirmed.Based on the available information, it can be concluded that product was manufactured according to specifications and the device functioned as intended for an undetermined time; therefore the most probable root cause can be considered as damaged during use caused due to an inappropriate manipulation by the user.No triggers or trends were identified.No further actions are required.It must be noted that in-process controls, such as personnel training, incoming quality acceptance testing for raw material, 100% in process visual inspection and visual acceptance sampling, are in place to prevent nonconforming product from leaving the manufacturing operations.This complaint will be used for tracking and trending purposes.If information is provided in the future, a supplemental report will be issued.
|