The complainant was unable to report the lot number; therefore the manufacture date and expiration date are unknown.However, the complainant stated that the device was used prior to the expiration date.(b)(4).The complainant indicated that the device remains implanted and will not be returned for evaluation; therefore a failure analysis of the complaint device could not be completed.If any further relevant information is identified, a supplemental medwatch will be filed.
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It was reported to boston scientific corporation on (b)(6) 2015 that an ultraflex esophageal ng proximal release stent was used during a stent placement procedure performed on (b)(6) 2015.According to the complainant, the physician deployed an ultraflex esophageal ng proximal release stent.The physician completed the procedure with this device.On (b)(6) 2015, the patient was hospitalized because he could not eat.The physician noticed that the stent was occluded with tissue ingrowth.A second ultraflex esophageal ng stent was implanted within the previously implanted stent.
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