The complainant was unable to report the upn and 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 has been disposed 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 mdr will be filed.
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It was reported to boston scientific corporation that an ascerta¿ ureteral stent was used during a ureteroscopy with stent placement procedure performed on an unknown date ¿a couple of months ago¿.According to the complainant, it was found that the stent had migrated in the ureter.There were no patient complications reported as a result of this event.The patient's condition at the conclusion of the procedure was reported to be fine.Attempts to obtain additional information regarding the circumstances surrounding this event have been unsuccessful to date.Should additional relevant details become available, a supplemental report will be submitted.
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