MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ACUITY? X4 Straight; Implantable Pulse Generator, Pacemaker (Non-Crt)

Model Number	4671
Medical Device Problem Codes	Failure to Capture (1081); Low impedance (2285); High Capture Threshold (3266)
Health Effect - Clinical Codes	Device Overstimulation of Tissue (1991); Discomfort (2330); No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/12/2026
Type of Reportable Event	Malfunction

• Brand Name: ACUITY? X4 Straight
• Common Device Name: Implantable Pulse Generator, Pacemaker (Non-Crt)
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): Boston Scientific Corporation; road 698, lot no. 12; dorado PR 00646 -260; PR 00646-2602
• Manufacturer Contact: mark mischke ; 4100 hamline avenue north; saint paul, MN 55112 ; +1(612)875-7234
• MDR Report Key: 50416014
• Report Number: 2124215-2026-45384
• Device Sequence Number: 10213672
• Product Code: LWP
• UDI-Device Identifier: 00802526524516
• UDI-Public: (01)00802526524516(17)280205
• Combination Product (Y/N): Y
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: P010012
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 09/09/2026

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: Lay User/Patient
• Device Model Number: 4671
• Device Catalogue Number: 4671
• Device Lot Number: 908786
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: Not provided
• Supplement Date Received by Manufacturer: 08/24/2026
• Initial Report FDA Received Date: 08/24/2026
• Supplement Report FDA Received Date: 09/09/2026
• Date Device Manufactured: 02/05/2026
• 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 Sex: Unknown