It was reported that during preparation of the 3.0x38mm xience alpine stent delivery system (sds), the protective sheath was very tight and could not be removed with the usual ease and the balloon was noted to be inflated.There was no device use or patient involvement.Another non-abbott device was used to complete the procedure.There was no clinically significant delay in the procedure.Subsequent to the initially filed report, the following information was received: the sds was not prepared and it was during removal of the protective sheath when the physician realized the balloon was already inflated.No additional information was provided.
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A visual and dimensional inspection was performed on the returned device.Analysis confirmed the reported product quality problem (partial inflation).The reported difficult to remove (sheath) could not be tested due to the component not being returned.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history identified no similar incidents from this lot.The investigation was unable to determine a conclusive cause for the reported difficulties.Additionally, factors that could contribute to a product quality problem (partial inflation) during preparation include, but are not limited to, inadvertent pressurization during preparation, mishandling of the device, and/or a manufacturing nonconformity.Factors that could contribute to difficult to remove (sheath) include, but are not limited to, user technique, damage to the balloon, and/or damage to the stent.Due to the degree of the flared stent, it is unlikely that the protective sheath would have fit over the damaged stent; therefore, the stent damage is not a pre-existing condition.In this case, it is possible that the user¿s technique during removal of the protective sheath contributed to the reported difficult to remove (sheath).It is also possible that the sds was inadvertently partially inflated during preparation for use, resulting in the reported product quality problem (partial inflation), ultimately causing the noted material deformation (flared proximal/distal stent struts); however, this cannot be confirmed.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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