MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION MUSTANG?; STENTS, DRAINS AND DILATORS FOR THE BILIARY DUCTS

Model Number	H74939171120670
Medical Device Problem Codes	Failure to Advance (2524); Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/30/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
D2b - pro code (product code): fge, lit g4 - premarket / 510(k): k141521, k141597 device technical analysis upon receipt at our post market quality assurance laboratory, a visual examination identified that the balloon was not folded which indicates that the balloon was subjected to positive pressure.A longitudinal tear was identified in the balloon material.The tear measured approximately 70mm in length and extended from a position 7mm proximal of the proximal markerband to 10mm distal of the distal markerband.The recommended introducer/guide sheath size for this device as per mustang product spec, is minimum 7fr sheath.The sheath used by the customer was not returned for analysis.During analysis the investigator was unable to apply negative pressure to the device due to the longitudinal tear in the balloon material, so therefore was unable to advance the device through a boston scientific 7fr sheath.So therefore, the sheath insertion test cannot be carried out.A visual examination observed no damage to the tip of the device.A visual and tactile examination found no kinks or damage to the shaft of the device.Both markerbands were undamaged and present on the shaft of the device.No other issues were identified during the product analysis.Device history record (dhr) review it was confirmed this device met manufacturing specifications prior to distribution and there were no manufacturing deviations that could have contributed to the reported event.Labeling review review of the instructions for use (ifu) confirmed that the content was sufficient and did not contribute to the reported event; therefore, no updates are required to the document at this time.Risk review a risk review was completed and confirmed that the event of catheter - difficult to advance was defined in the risk documentation and is documented accordingly in the prr.This event type has been accounted for during product risk analysis to support acceptable risk benefit for the product.Investigation conclusion based on a thorough review of the reported complaint, boston scientific has assigned an investigation conclusion code of adverse event related to procedure.
Event or Problem Description
Reportable based on device analysis completed on 12mar2026.It was reported that resistance was felt upon advancing into the sheath.The target lesion was located in the arteriovenous fistula.A 12.0 x 60, 75cm mustang balloon catheter was advanced for dilation.During advancing into the sheath, a lot of resistance was felt.The procedure was completed with another of the same device.There were no patient complications as a result of this event.However, device analysis revealed that a longitudinal tear.

• Brand Name: MUSTANG?
• Common Device Name: STENTS, DRAINS AND DILATORS FOR THE BILIARY DUCTS
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 300 boston scientific way; marlborough MA 01752
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; pmt 741 persiaran cassia selat; bandarcassia, pulau pinan 14110 ; MY 14110
• Manufacturer Contact: mark mischke ; 4100 hamline ave n; arden hills, MN 55112 ; 7634941632
• MDR Report Key: 24741165
• Report Number: 2124215-2026-17505
• Device Sequence Number: 13105703
• Product Code: FGE
• UDI-Device Identifier: 08714729794738
• UDI-Public: (01)08714729794738(17)280112(10)35608450
• Combination Product (Y/N): N
• Initial Reporter Country: KS
• PMA/510(K) Number: K141521
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Health Professional,Company Representative,Distributor
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 03/31/2026

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 Model Number: H74939171120670
• Device Catalogue Number: H74939171120670
• Device Lot Number: 0035608450
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 02/10/2026
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/12/2026
• Initial Report FDA Received Date: 03/31/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 01/12/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Age: 74 YR
• Patient Sex: Male