MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ACCOLADE DR; PACEMAKERS

Model Number L301

Device Problems Incorrect, Inadequate or Imprecise Result or Readings (1535); Inappropriate or Unexpected Reset (2959)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 10/31/2023

Event Type  Injury  

Manufacturer Narrative

The product has been received for analysis.This report will be updated upon completion of analysis.

Event Description

It was reported that an april 2023 device check of this pacemaker showed 11 months remaining on the battery and the device was nearing the elective replacement time (ert).A follow-up check 6 months later indicated that the pacemaker had entered safety mode and recorded an unspecified error code.Subsequently, this pacemaker was explanted, replaced, and returned for analysis.No additional adverse patient effects were reported.

Manufacturer Narrative

The product has been received for analysis.This report will be updated upon completion of analysis.

Event Description

It was reported that an (b)(6) 2023 device check of this pacemaker showed 11 months remaining on the battery and the device was nearing the elective replacement time (ert).A follow-up check 6 months later indicated that the pacemaker had entered safety mode and recorded an unspecified error code.Subsequently, this pacemaker was explanted, replaced, and returned for analysis.No additional adverse patient effects were reported.Additional information received reported that clarified that this pacemaker had entered safety mode and device interrogation revealed the following codes: 0x0, 0x0, 0x0.The explanted pacemaker was received for analysis.No additional adverse patient effects were reported.

Manufacturer Narrative

Upon receipt at our post market quality assurance laboratory, this device was thoroughly inspected and analyzed.Device telemetry data confirmed it was operating in safety mode/determined it had undergone resets and that bradycardia therapy remained available.Engineers determined that this device was demonstrating behavior consistent with a high internal cell impedance within the battery.The high internal impedance put this device at risk of experiencing transient voltage decreases (and associated resets) during periods of high-power consumption.When battery voltage drops below a minimum threshold, a system reset is performed.If three system resets occur within a 48-hour period, the device is designed to immediately enter safety mode operation to maintain back-up pacing with pre-defined, non-programmable settings.The product has been received for analysis.This report will be updated upon completion of analysis.

Event Description

It was reported that an (b)(6) 2023 device check of this pacemaker showed 11 months remaining on the battery and the device was nearing the elective replacement time (ert).A follow-up check 6 months later indicated that the pacemaker had entered safety mode and recorded an unspecified error code.Subsequently, this pacemaker was explanted, replaced, and returned for analysis.No additional adverse patient effects were reported.Additional information received reported that clarified that this pacemaker had entered safety mode and device interrogation revealed the following codes: 0x0, 0x0, 0x0.The explanted pacemaker was received for analysis.No additional adverse patient effects were reported.

• Brand Name: ACCOLADE DR
• Type of Device: PACEMAKERS
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; cashel road; clonmel ; EI
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 18205068
• MDR Text Key: 328928139
• Report Number: 2124215-2023-66568
• Device Sequence Number: 1
• Product Code: LWP
• UDI-Device Identifier: 00802526559174
• UDI-Public: 00802526559174
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: N970003/S167
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional,Company Representative
• Reporter Occupation: Physician
• Remedial Action: Recall
• Type of Report: Initial,Followup,Followup
• Report Date: 01/30/2024

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
• Device Operator: Lay User/Patient
• Device Expiration Date: 04/20/2017
• Device Model Number: L301
• Device Catalogue Number: L301
• Device Lot Number: 706435
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 11/03/2023
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 10/31/2023
• Initial Date FDA Received: 11/24/2023
• Supplement Dates Manufacturer Received: 11/28/2023; 01/11/2024
• Supplement Dates FDA Received: 12/04/2023; 01/30/2024
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 04/20/2015
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention; Hospitalization
• Patient Age: 83 YR
• Patient Sex: Male