MAUDE Adverse Event Report: Thoratec Corporation Thoratec® HeartMate 3® LVAS Implant Kit; Ventricular (Assist) Bypass

Model Number	106524US
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Gastrointestinal Hemorrhage (4476)
Date of Event	07/31/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that the patient was admitted on (b)(6) 2026 with dark stools.It was said that event was anticoagulation related.An esophagogastroduodenoscopy (egd), capsule study/colonoscopy was performed.The event did resolve with lower international normalized ratio (inr).
Additional Manufacturer Narrative
Manufacturer¿s investigation conclusion: the pump remains in use supporting the patient.A correlation between the device and the report of gastrointestinal (gi) bleeding could not be conclusively determined.Bleeding is listed in the instructions for use as a potential adverse event that may be associated with the use of heartmate 3 left ventricular assist system.Gi bleeding has been previously investigated and will continue to be monitored through quality data reviews, which are conducted on production and post product signals to evaluate if products are conforming to product requirements.No further information was provided.The manufacturer is closing the file on this event.

• Brand Name: Thoratec® HeartMate 3® LVAS Implant Kit
• 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: 50937988
• Report Number: 2916596-2026-2920218
• Device Sequence Number: 10734921
• Product Code: DSQ
• UDI-Device Identifier: 00813024013297
• Combination Product (Y/N): N
• Initial Reporter State: MA
• Initial Reporter Country: US
• PMA/510(K) Number: P160054
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 09/29/2026

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 Expiration Date: 06/23/2026
• Device Model Number: 106524US
• Device Catalogue Number: 106524US
• Device Lot Number: L00001321
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/08/2026
• Initial Report FDA Received Date: 09/29/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 09/25/2024
• 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: Life Threatening; Hospitalization; Required Intervention
• Patient Age: 73 YR
• Patient Sex: Female
• Patient Weight: 145 LB
• Patient Race: Black Or African American