MAUDE Adverse Event Report: MEDTRONIC IRELAND MICRA AV; LEADLESS PACEMAKER

Model Number MC1AVR1

Device Problems Failure to Capture (1081); High impedance (1291); Pacing Problem (1439); Material Integrity Problem (2978); Unstable Capture Threshold (3269)

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

Event Date 03/07/2024

Event Type  malfunction  

Event Description

It was reported intra operatively that the leadless implantable pulse generator (ipg) exhibited high impedance values due to tissue being attached to it, pacing malfunction and unstable thresholds.It was also noted that the delivery system exhibited a hard and would not move smoothly and that the tether may be broken.The leadless ipg and delivery system were attempted/not used and replaced. no patient complications have been reported as a result of this event.

Manufacturer Narrative

Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.

Manufacturer Narrative

Corrected b5 (second sentence) and h6: fdd code medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.

Event Description

It was reported intra operatively that the leadless implantable pulse generator (ipg) exhibited high impedance values due to tissue being attached to it, pacing malfunction and unstable thresholds.It was also noted that the delivery system was hard and would not move smoothly.The leadless ipg and delivery system were attempted/not used and replaced. no patient complications have been reported as a result of this event.

Manufacturer Narrative

Product event summary: the device was returned and analyzed.Returned product analysis was performed and no anomalies were found.Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.

• Brand Name: MICRA AV
• Type of Device: LEADLESS PACEMAKER
• Manufacturer (Section D): MEDTRONIC IRELAND; parkmore business park west; galway ; EI
• Manufacturer (Section G): MEDTRONIC IRELAND; parkmore business park west; galway ; EI
• Manufacturer Contact: paula bixby ; 8200 coral sea st ne; mounds view, MN 55112 ; 7635055378
• MDR Report Key: 18932047
• MDR Text Key: 338452335
• Report Number: 9612164-2024-01312
• Device Sequence Number: 1
• Product Code: PNJ
• Combination Product (y/n): N
• Reporter Country Code: JA
• PMA/PMN Number: P150033
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Foreign,Health Professional,Company Representative
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date: 03/22/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 03/19/2024
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: MC1AVR1
• Device Catalogue Number: MC1AVR1
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 03/22/2024
• Was Device Evaluated by Manufacturer?: No
• Date Device Manufactured: 07/19/2023
• 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 Age: 80 YR
• Patient Sex: Male