It was reported to boston scientific corporation that a polaris¿ ultra stent was used during a ureteroscopy procedure performed in the ureter on (b)(6) 2015.According to the complainant, during the procedure when the stent was placed, the pigtail of the stent would not curl and the stent could not be placed correctly.Therefore, the stent was removed.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.
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The complainant was unable to provide the suspect device lot number; therefore, the lot expiration and device manufacture dates are unknown.It was reported the device was not used past its expiry.Reported event of "stent would not curl." the complainant indicated that the device was 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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