MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION POLARIS LOOP; STENT, URETERAL

Model Number	M0061552330
Medical Device Problem Code	Break (1069)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/11/2020
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
(b)(4).The returned polaris loop ureteral stent was analyzed, and a visual evaluation noted that the device was damaged.The stent was detached at middle section.The suture string returned properly loaded in the loops and positioner was in good conditions.No other issues with the device were noted.The reported event was confirmed.According to product analysis, the device was received out of original package and it was an evidence that the stent was manipulated.The problem found was an issue that could have been generated by the user or due to the interacting of the device with the suture string during preparation, moreover, the failure found is consistent when the suture is being pulled with an excess of force or due to the interaction/manipulation of the device or with other devices.Therefore, adverse event related to procedure is selected as the most probable root cause for the complaint.A review of the manufacturing documentation for this device revealed that no anomalies or deviations related to the event occurred during manufacturing.
Event or Problem Description
It was reported to boston scientific corporation that a polaris loop ureteral stent was used during a ureterolithiasis procedure in the ureter, performed on (b)(6) 2020.During unpacking, it was found that the stent coil was detached.Another polaris loop ureteral stent was opened and successfully completed the procedure.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 stable.This event has been deemed a reportable event based on the investigation finding of stent shaft broken.

• Brand Name: POLARIS LOOP
• Common Device Name: STENT, URETERAL
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 300 boston scientific way; marlborough MA 01752
• MDR Report Key: 12288830
• Report Number: 3005099803-2021-03768
• Device Sequence Number: 14620660
• Product Code: FAD
• UDI-Device Identifier: 08714729421092
• UDI-Public: 08714729421092
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K030503
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: company representative,foreig
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 08/06/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 10/09/2022
• Device Model Number: M0061552330
• Device Catalogue Number: 155-233
• Device Lot Number: 0024575649
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 07/07/2021
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 07/12/2021
• Initial Report FDA Received Date: 08/06/2021
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Patient Age: 58 YR
• Patient Weight: 71