MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ESSENTIO? SR; Pacemaker

Model Number	L100
Medical Device Problem Code	Incorrect, Inadequate or Imprecise Result or Readings (1535)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/25/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that this pacemaker had entered safety mode.Technical services (ts) was consulted and recommended device replacement.This pacemaker has been explanted.No additional adverse patient effects were reported.This product has been returned for analysis.

• Brand Name: ESSENTIO? SR
• Common Device Name: 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: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; +1(651)582-6168
• MDR Report Key: 50278457
• Report Number: 2124215-2026-43960
• Device Sequence Number: 16046913
• Product Code: LWP
• UDI-Device Identifier: 00802526558900
• UDI-Public: (01)00802526558900(17)180218
• Combination Product (Y/N): N
• Initial Reporter State: MA
• Initial Reporter Country: US
• PMA/510(K) Number: N970003
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2016
• Device Explanted Year: 2026
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 08/17/2026

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: 02/18/2018
• Device Model Number: L100
• Device Catalogue Number: L100
• Device Lot Number: 709404
• Was Device Available for Evaluation?: Yes
• Date Returned to Manufacturer: 08/10/2026
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/27/2026
• Initial Report FDA Received Date: 08/17/2026
• Date Device Manufactured: 03/01/2016
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Age: 72 YR
• Patient Sex: Female