MAUDE Adverse Event Report: HEARTWARE, INC. HEARTWARE VENTRICULAR ASSIST SYSTEM - BATTERY; VENTRICULAR (ASSISST) BYPASS

Model Number	1650DE
Medical Device Problem Code	Battery Problem (2885)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/25/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Investigation of this event is pending and a supplemental report will be sent upon its completion.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 or Problem Description
It was reported that the battery exhibited an erroneous critical battery alarm.The battery was removed from service.No patient complications have been reported as a result of this event.
Additional Manufacturer Narrative
A supplemental report is being submitted for investigation summary.Product event summary: the battery ((b)(6)) was not returned for evaluation.A review of the manufacturing documentation confirmed that the associated device met all requirements for release.Log file analysis revealed that the controller in use during the reported event, (b)(6), contained a feature that records whether a power source experienced a communication error or a disconnection within each 15-minute interval.The reported event was confirmed via review of the controller log files which revealed one (1) critical battery alarm involving (b)(6) on (b)(6) 2025 at 08:06:53.During the critical battery alarm, the battery's relative state of charge (rsoc) value was logged between 101-201, which is indicative of a communication error.The battery had been lubricated prior to release.The most likely root cause of the reported critical battery alarm can be attributed to communication errors between the controller and the battery.Possible root causes of the communication errors can be attributed to momentary disconnections on the communication pins of the controller, the controller not receiving responses from the battery, and/or due to the packet error checking method detecting bit errors.Investigation of this event is completed and the file will be closed.If new information is received, the file will be re-opened and a supplemental will be submitted.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: HEARTWARE VENTRICULAR ASSIST SYSTEM - BATTERY
• Common Device Name: VENTRICULAR (ASSISST) BYPASS
• Manufacturer (Section D): HEARTWARE, INC.; 14400 nw 60th ave; miami lakes FL 33014
• Manufacturer (Section G): HEARTWARE, INC.; 14400 nw 60th ave; miami lakes FL 33014
• Manufacturer Contact: gerard torenvliet ; 8200 coral sea st ne; mounds view, MN 55112-4391 ; 7635269277
• MDR Report Key: 22977641
• Report Number: 3007042319-2025-01992
• Device Sequence Number: 9540742
• Product Code: DSQ
• UDI-Device Identifier: 00763000629717
• UDI-Public: (01)00763000629717(17)240229
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• PMA/510(K) Number: P100047
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 10/09/2025

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 Expiration Date: 02/29/2024
• Device Model Number: 1650DE
• Device Catalogue Number: 1650DE
• 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: 09/03/2025
• Supplement Date Received by Manufacturer: 10/08/2025
• Initial Report FDA Received Date: 09/05/2025
• Supplement Report FDA Received Date: 10/09/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 02/28/2023
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: 1104 VAD
• Patient Sex: Unknown