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

Model Number	1650
Medical Device Problem Code	Battery Problem (2885)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
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 was blinking red when attempting to charge and not charging.The battery was removed from use.There was no patient involvement.
Additional Manufacturer Narrative
A supplemental report is being submitted for device evaluation and investigation completion.Product event summary: one (1) battery was returned for evaluation.Various analyses were conducted and reviewed in order to evaluate the performance of the device in relation to the reported event.A review of the device history records was not performed as the reported event and analysis are not related to a manufacturing or servicing issue.Failure analysis of the returned device revealed that the battery passed visual inspection.Functional testing revealed that the battery flashed red on the battery charger due to a high max error.The high max error is an indicator of how well the battery¿s relative state of charge (rsoc) is calibrated.A tendency to exchange batteries before reaching 25% relative state of charge (rsoc) may contribute to an out-of-calibration condition.A high max error will cause a battery to flash red when connected to a battery charger.The battery was still able to charge and provide power to a controller.As a result, the reported not charging event could not be confirmed; however, flashing red caused by the high max error condition was likely perceived as the reported not charging event.The high max error condition on the battery was able to be reset, after which the battery performed as intended.Internal inspection of the battery did not reveal any anomalies.Based on the available information, the most likely root cause of the reported event can be attributed to a battery that is out of calibration.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: 23453735
• Report Number: 3007042319-2025-02381
• Device Sequence Number: 8916839
• Product Code: DSQ
• UDI-Device Identifier: 00763000629717
• UDI-Public: (01)00763000629717(17)240331
• 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): 01/02/2026

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: 03/31/2024
• Device Model Number: 1650
• Device Catalogue Number: 1650
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 10/30/2025
• Supplement Date Received by Manufacturer: 12/29/2025
• Initial Report FDA Received Date: 11/03/2025
• Supplement Report FDA Received Date: 01/02/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/18/2023
• 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