MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION VISIONIST? X4 CRT-P; Cardiac Resynchronization Therapy Pacemaker

Model Number	U228
Medical Device Problem Code	Premature Discharge of Battery (1057)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/31/2026
Type of Reportable Event	Serious Injury

• Brand Name: VISIONIST? X4 CRT-P
• Common Device Name: Cardiac Resynchronization Therapy Pacemaker
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): Boston Scientific Corporation; cashel road; clonmel E91 T 862; EI E91 T862
• Manufacturer Contact: mark mischke ; 4100 hamline avenue north; saint paul, MN 55112 ; +1(612)875-7234
• MDR Report Key: 50828982
• Report Number: 2124215-2026-50047
• Device Sequence Number: 10581174
• Product Code: NKE
• UDI-Device Identifier: 00802526559471
• UDI-Public: (01)00802526559471(17)211018
• Combination Product (Y/N): N
• Initial Reporter State: WI
• Initial Reporter Country: US
• PMA/510(K) Number: P030005
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2020
• Device Explanted Year: 2026
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 09/18/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Expiration Date: 10/18/2021
• Device Model Number: U228
• Device Catalogue Number: U228
• Device Lot Number: 747692
• Was Device Available for Evaluation?: Yes
• Date Returned to Manufacturer: 09/14/2026
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/01/2026
• Initial Report FDA Received Date: 09/18/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 11/19/2019
• 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
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Age: 76 YR
• Patient Sex: Female