MAUDE Adverse Event Report: Thoratec Corporation HeartMate Power Module; Ventricular (Assist) Bypass

Model Number	L1340
Medical Device Problem Code	Mechanical Problem (1384)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	09/04/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that there was water damage to the power module.It was also noted that the power module was due for a battery replacement as well.
Additional Manufacturer Narrative
Section g4: there was no patient involved in this event.The pma# provided is associated with the device¿s most recent approval.No further information was provided.A supplemental report will be submitted once the manufacturer's investigation is complete.

• Brand Name: HeartMate Power Module
• Common Device Name: Ventricular (Assist) Bypass
• Manufacturer (Section D): Thoratec Corporation; 6035 stoneridge drive; pleasanton CA 94588
• Manufacturer (Section G): Thoratec Corporation; 6035 stoneridge drive; pleasanton CA 94588
• Manufacturer Contact: fredric gold ; 6035 stoneridge drive; pleasanton, CA 94588 ; +1(781)852-8207
• MDR Report Key: 50885046
• Report Number: 2916596-2026-2919710
• Device Sequence Number: 21288820
• Product Code: DSQ
• UDI-Device Identifier: 00813024010654
• UDI-Public: (01)00813024010654(11)20150211
• Combination Product (Y/N): N
• Initial Reporter State: IN
• Initial Reporter Country: US
• PMA/510(K) Number: P160054
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Biomedical Engineer
• Type of Report: Initial
• Report Date (Section B): 09/24/2026

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: Health Professional
• Device Model Number: L1340
• Device Catalogue Number: L1340
• Device Lot Number: IFS100584
• Was Device Available for Evaluation?: Yes
• Date Returned to Manufacturer: 09/10/2026
• Is the Reporter a Health Professional?: No
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/04/2026
• Initial Report FDA Received Date: 09/24/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/11/2015
• 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
• Patient Sex: Unknown