Device evaluated by mfr: the introducer catheter, blue dilator, blue braided sheath and the filter was returned to site for analysis.The filter was returned outside of the capsule.The lot number was confirmed from the packaging.The filter was placed in the stainless steel template and the diameter of the filters legs were out of specification.It is most probable that during transit of the device back to site for analysis, the filter was damaged from its original shape as the filter was not protected during shipping.The length of the filter was in specification.Analysis of the returned introducer catheter revealed the paper safety sleeve was removed; around the handle of the introducer catheter and that the trigger (thumb switch) had been unlocked and moved down the deployment track.The trigger was placed back in a locked position.A kink was noted in the introducer sheath 5.5cm proximal the hub of the introducer sheath.The length of the introducer sheath was measured and met specification.The capsule was examined for any damage and no issues were noted.The length of the blue braided sheath was measured and met specification.The manufacturing batch record review confirmed the device met all material, assembly and performance specifications.The most probable root cause is operational context as device performance was limited due to anatomical procedural factors.(b)(4).
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