Class I — the FDA judged there is a reasonable probability that use of the product would cause serious harm or death.
This is the FDA's risk judgment for this recall. It describes the potential of the product as a category — it does not establish that any specific unit harmed anyone.
Brand Name: HeartMate Product Name: Mobile Power Unit Model/Catalog Number: 107754 Software Version: N/A Product Description: The HeartMate 3" Left Ventricular Assist System (LVAS) is a set of equipment and materials that together comprise a medical device designed to provide therapeutic benefit to those affected with advanced heart failure. In service, the LVAS assumes some or all of the workload of the left ventricle, thereby restoring the patient's systemic perfusion while palliating the underlying pathology. The LVAS features a Left Ventricular Assist Device (LVAD), a blood pump intended for long-term implantation in such patients, an extracorporeal Controller, plus all of the features, controls, attachments, interfaces, power sources, supporting equipment, labeling, and tools required to achieve the desired therapeutic benefit. The HeartMate II Left Ventricular Assist System is an axial-flow, rotary ventricular assist system that generates flows up to 10 liters per minute (lpm). One end of the Left Ventricular Assist Device is attached to the apex of the left ventricle; the other end of the device connects to the ascending aorta. The Left Ventricular Assist Device diverts blood from the weakened left ventricle and propels it to the aorta. A small external computer, the System Controller, monitors system operation. A driveline, which passes through the patient s abdomen, connects the implanted pump to the System Controller. The system is powered by a Power Module or Mobile Power Unit (MPU) that is connected to an AC electrical outlet, or by two HeartMate 14 Volt Lithium-Ion batteries. The LVAS may be used in any of two configurations. First, line power may be utilized through the Power Module or the Mobile Power Unit (MPU) to run the LVAD indefinitely, convenient for sedentary or sleeping periods. Second, portable Battery power may be utilized for limited periods, convenient for active periods. The MPU AC power cord is distributed either as part of the complete MPU device package or as a standalone accessory. Component: Yes, the MPU is a component of the HeartMate 3 and HeartMate II Left Ventricular Assist Systems.
Why it was recalled
Due to misaligned V-Lock feature on the Mobile Power Unit power cords, which prevents the locking mechanism from properly engaging with the Mobile Power Unit and may cause unintended disconnect.
Is your unit affected?
The recall covers only the specific lots or serial numbers the FDA listed. Enter the lot or serial number from your product's label and we'll check it against that list.
A match means your unit may be covered — stop and call your pharmacist before doing anything. No match suggests it isn't covered, but confirm anyway: code formats vary and lists can be incomplete. Your unit not being listed does not guarantee it is safe, and being listed does not mean you have been harmed.
Show the FDA's listed lot / code information
Lot Code: US Model No 107754; UDI-DI 05415067038234 Serial Numbers, see Attachment F.
Recall status
Ongoing — the recall is still being carried out.
Where it was distributed
Worldwide - US Nationwide distribution including in the states of AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NJ, NM, NY, OH, OK, PA, SC, TN, TX, UT, VA, WA, WI, WV and the countries of Canada, Japan.
Recall record
- Recalling firm
- Thoratec LLC
- Product type
- Devices
- Recall number
- Z-2291-2025
- Voluntary / mandated
- Voluntary: Firm initiated
- Initial notification
- Letter
- Origin
- Pleasanton, CA
- Recall initiated
- 2025-06-23
What to do
Check the lot/code above against your product. To confirm this record and read the FDA's full notice, see the FDA recall page. Before changing anything you take or use, ask your pharmacist or prescriber — this page does not tell you to start or stop any drug or device.
Also available: structured data (JSON-LD) · recall record (JSON)
What this is — and is not
A recall is a recorded FDA enforcement action — the FDA logged that a firm is removing or correcting a product. It does not establish that any specific unit harmed anyone, and causation is not established by a recall. The class above is the FDA's risk judgment for the product category, not a finding about your unit. This page informs and compares; it is not medical advice and never tells you to start or stop a drug or device.
To report a problem you experienced, use
FDA MedWatch.
Verify this record at FDA recalls ·
Recall Z-2291-2025 · Source: openFDA enforcement.