PlainRecalls
CriticalClass IOngoing

FDA Devices recall · Reported August 20, 2025

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

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 uninten…

Recall #
Z-2291-2025
Affected scope
604
Initiated
June 23, 2025
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Thoratec LLC recalled Brand Name: HeartMate Product Name: Mobile Power Unit Model/Catalog Number: 107754 Sof… — a critical-severity action.

Brand Name: HeartMate Product Name: Mobile Power Unit Model/Catalog Number: 107754 Sof… was recalled by Thoratec LLC in August 20, 2025. Reason: Due to misaligned V-Lock feature on the Mobile Power Unit power cords, which prevents the locking mechanism f…. Check the official notice for the remedy. Verify recall #Z-2291-2025 with the FDA Devices before acting.

The recall

Thoratec LLC issued this critical-severity FDA Devices recall — Due to misaligned V-Lock feature on the Mobile Power Unit power cords, which prevents the locking mechanism f….

Critical
severity level
604 units
affected scope
Class I
classification
August 20, 2025
reported

Sourced from official FDA Devices enforcement records. Verify recall #Z-2291-2025 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

This FDA Devices action (record #Z-2291-2025) was formally reported on August 20, 2025, with the manufacturer initiating the action on June 23, 2025. It is classified under Critical severity (Class I), with a current status of Ongoing. Thoratec LLC is listed as the recalling firm, operating out of Pleasanton, CA. Federal records list the affected scope as 604.

The documented reason for this recall is: 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. Distribution data in the federal record shows the product reached: 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 an…. Distribution scope directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory.

Within the same product category the archive holds 6 closely related recalls, 6 from FDA Devices — clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.

Medical Devices recalls over time

Where this recall sits in its category — 40,409 medical devices recalls on record

-1,00001,0002,0003,0004,0005,000 20052008201120142017202020232026 1,243

Where this recall sits in the database

Severity2366872097High severity (most serious)Moderate severityLow severity
Where this recall sits in the database

Of 100,165 recalls in the database, 23,668 are high severity, 72,097 moderate, and 4,400 low. This recall is classified high severity.

Counts reflect market size and reporting activity, not inherent danger — we do not rank products by risk from raw recall volume.

Severity

Critical

Affected scope

604

Related Recalls

6

6 from same agency

Product description

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.

Reason for recall

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.

Recall Profile

Structured summary of the FDA Devices recall record
Attribute Value
Agency U.S. Food and Drug Administration
Severity class Critical (Class I)
Status Ongoing
Recall number Z-2291-2025
Date reported August 20, 2025
Date initiated June 23, 2025
Recalling firm Thoratec LLC
Firm location Pleasanton, CA
Affected scope 604
Distribution 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 C…

Profile values are sourced directly from the official FDA Devices enforcement record. Source: U.S. Food and Drug Administration.

Scale of Impact

604 units affected — limited or regional distribution scale.

Regional (<10K units) ✓ This recall
Multi-state (10K – 100K units)
Large-scale (100K – 1M units)
Massive (≥1M units)

Bracket cutoffs follow federal recall-disclosure conventions; bar widths scale linearly within each bracket. Source: PlainRecalls analysis of U.S. Food and Drug Administration filings.

What to do with this recall

Match your product against the recall record, then act on the agency remedy.

  • Check the recall number (Z-2291-2025) and product description against the item you own. Search the archive
  • Confirm the current status with FDA Devices before acting — recall details can be updated.
  • This is a Class I (high-risk) recall — stop using the product immediately and follow the disposal or return instructions. What to do next

This page summarizes the official FDA Devices record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.

Frequently Asked Questions

What product was recalled?
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.. Recalled by Thoratec LLC. Units affected: 604.
Why was this product 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.
Which agency issued this recall?
This recall was issued by the FDA Devices on August 20, 2025. Severity: Critical. Recall number: Z-2291-2025.
Where was the recalled product distributed?
Distribution: 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..
How do I check if my product is affected by a recall?
Check the product description and recall number (Z-2291-2025) against your product. Visit the official FDA Devices website for the most current information. You can also use our Recall Checker tool to search by product name or brand.
Should I stop using a recalled medication or medical device?
Do not stop using a recalled medication or device without consulting your healthcare provider first, as abruptly discontinuing treatment could pose its own health risks. Your doctor can advise on alternatives or whether the recall applies to your specific product lot. Check the recall number and lot information against your product packaging.

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Data Sources

Source: FDA, CPSC, and NHTSA federal recall databases. This recall: FDA Devices, reported August 20, 2025.

  • Source: FDA — Food and Drug Administration, openFDA Enforcement API (food, drug, and medical device recalls)
  • Source: CPSC — Consumer Product Safety Commission Recalls API (consumer product recalls and hazards)
  • Source: NHTSA — National Highway Traffic Safety Administration Recalls API (vehicle safety recalls)

Recall information is sourced from official federal agency databases. Always verify recall details with the issuing agency for the most current status. This information is for research and awareness purposes only.

Every figure on PlainRecalls is rendered directly from official FDA, CPSC and NHTSA recall records — no number is typed in by an editor. Severity classes follow each agency's own taxonomy (FDA Class I/II/III; CPSC and NHTSA by hazard type), and related-recall context is computed across the full archive. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.