MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION LUX-Dx II+?; Insertable Cardiac Monitor

Model Number	M312
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Pocket Erosion (2013)
Date of Event	08/11/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that a connection check was performed, but no response was received from the insertable cardiac monitor (icm).The health care professional (hcp) was unable to feel the device, although the incision site was visible.The issue remained unresolved.A possible device erosion was suspected, and a chest x-ray was recommended to confirm the icm location.Additional information received from the field representative indicates that no infection was noted in the patient, and no further action has been taken at this time.No additional adverse patient effects were reported.This icm remains in service.
Event or Problem Description
It was reported that a connection check was performed, but no response was received from the insertable cardiac monitor (icm).The health care professional (hcp) was unable to feel the device, although the incision site was visible.The issue remained unresolved.A possible device erosion was suspected, and a chest x-ray was recommended to confirm the icm location.Additional information received from the field representative indicates that no infection was noted in the patient, and no further action has been taken at this time.No additional adverse patient effects were reported.This icm remains in service.
Additional Manufacturer Narrative
This product investigation is still in progress.This report will be updated when product investigation is complete.
Additional Manufacturer Narrative
This product has not been returned to boston scientific, and as a result, laboratory analysis could not be conducted.A review of the device history record (dhr) was performed.The review of the dhr identified that there were no process related non-conformances, scrap, or rework performed during the production that could explain the event.The reviews ensure each device meets specification prior to release for use.There is no indication the device manufacturing process contributed to the reported complaint.Based on a thorough review of the reported complaint, boston scientific has assigned an investigation conclusion code of no problem detected.

• Brand Name: LUX-Dx II+?
• Common Device Name: Insertable Cardiac Monitor
• 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: 50602106
• Report Number: 2124215-2026-45888
• Device Sequence Number: 10711644
• Product Code: MXD
• UDI-Device Identifier: 00802526620706
• UDI-Public: (01)00802526620706(17)270210
• Combination Product (Y/N): N
• Initial Reporter State: SC
• Initial Reporter Country: US
• PMA/510(K) Number: K231328
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2026
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 09/21/2026

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?: No
• Operator of Device: Lay User/Patient
• Device Model Number: M312
• Device Catalogue Number: M312
• Device Lot Number: 160221
• 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: 09/17/2026
• Initial Report FDA Received Date: 09/04/2026
• Supplement Report FDA Received Date: 09/21/2026
• Date Device Manufactured: 08/26/2025
• 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
• Outcome Attributed to Adverse Event: Other
• Patient Age: 62 YR
• Patient Sex: Female