Key facts
| Recalling firm | Abbott Medical |
|---|---|
| Manufacturer | Not disclosed in the FDA record. |
| Brand name | Not disclosed in the FDA record. |
| Product description | Merlin@home Transmitter REF EX1100 The Merlin@home" (M@h) transmitter is intended to transfer stored data from the patient s implanted heart device to Merlin.net" Patient Care Network (PCN) to facilitate remote monitoring by using inductive (EX1100 Model) or RF telemetry (EX1150 Model) to read device data and transmitting to the Merlin.net PCN server. |
| Classification | Class III |
| Recall number | Z-0551-2025 |
| Report date | Not disclosed in the FDA record. |
| Status | Ongoing |
| Reason for recall | Due to heart transmitter not being able to upgrade to the current software version in the field after experiencing a power interruption during a prior over-the-wire software download. |
What this classification means
A Class III recall is FDA’s least serious classification. FDA assigns Class III when use of, or exposure to, the recalled product is not likely to cause any adverse health consequences, but the product still violates FDA labeling or manufacturing regulations. Class III recalls are still tracked and reported to FDA, but typically receive lighter monitoring than Class I or II. FDA's Center for Devices and Radiological Health (for devices) or Center for Drug Evaluation and Research (for drugs) reviews the classification and can require additional corrective action if the initial response is judged insufficient. Because this record is filed as Class III, professionals and consumers handling an affected lot should treat FDA's own classification -- not this page's summary of it -- as the authoritative risk signal. A Class I recall is FDA’s most serious classification. FDA assigns Class I when there is a reasonable probability that use of, or exposure to, the recalled product will cause serious adverse health consequences or death. This classification does not mean harm has already occurred in every case -- it reflects FDA’s assessment of the realistic worst-case risk profile of the defect described in the recall, based on the reason for recall reported by the firm. Class I recalls receive the closest FDA monitoring of the three classes: the recalling firm typically must submit a recall strategy, periodic status reports, and effectiveness checks confirming that the affected lots have actually been removed from distribution or corrected in the field. A Class II recall is FDA’s middle classification. FDA assigns Class II when use of, or exposure to, the recalled product may cause temporary or medically reversible adverse health consequences, or where the probability of serious adverse health consequences is remote. FDA still requires the recalling firm to notify affected accounts and submit status reports on the correction, though the monitoring intensity is lower than for a Class I recall.
What consumers should do
Facilities, clinicians, and consumers holding an affected unit or lot of Merlin@home Transmitter REF EX1100 The Merlin@home" (M@h) transmitter is intended to transfer stored data from the patient s implanted heart device to Merlin.net" Patient Care Network (PCN) to facilitate remote monitoring by using inductive (EX1100 Model) or RF telemetry (EX1150 Model) to read device data and transmitting to the Merlin.net PCN server. should stop using it for the purpose described in the recall notice and hold remaining stock pending instructions from Abbott Medical. FDA recall records typically direct the recalling firm to notify known accounts directly with a recall letter describing the specific corrective action -- replacement, field correction, refund, or return. Anyone who received the product through a distributor rather than directly from Abbott Medical should confirm with their supplier whether their specific lot or unit is on the affected list, since recall notices are lot- or unit-specific and not every unit of a product line is necessarily included. Questions about a specific unit's status should go to Abbott Medical directly or to the distributor that supplied it; Argus HQ is a public-record aggregator, not the recalling firm, and cannot confirm individual unit status.
Abbott Medical’s FDA history
Argus HQ has recorded 39 total FDA actions tied to Abbott Medical: 0 warning letters, 39 recalls, 0 approval records, and 0 Form 483 inspection citations.
Frequently asked questions
- Has Abbott Medical had other FDA recalls or enforcement actions?
- Yes. Argus HQ has recorded 39 total FDA actions tied to Abbott Medical, including 39 recalls and 0 warning letters.
- What is the FDA recall number for this event?
- FDA recall number Z-0551-2025.
- What is the current status of this recall?
- Status as recorded by FDA: Ongoing.
- Where can I verify this recall directly with FDA?
- The verbatim FDA record is the source of truth for every recall Argus HQ tracks — always confirm against fda.gov before acting.
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Related enforcement actions
Full FDA history for Abbott Medical- Recall: Abbott Medical — Class II recall: Liberta RC DBS IPG (Implantable Pulse Generator), Model Number 62400 →
- Recall: Abbott Medical — Class II recall: Eterna SCS IPG (Implantable Pulse Generator), Model Number 32400 →
- Recall: Abbott Medical — Class II recall: Aveir DR Leadless Pacemaker (LP) Ventricular Device REF LSP202V UDI-DI code: 0… →
- Recall: Abbott Medical — Class II recall: The Merlin PCS 3650 programmer Model 3330 The Merlin PCS programmer model 365… →
- Recall: Abbott Medical — Class III recall: Merlin@home with the MerlinOnDemand capability Transmitter REF EX1150 Merlin@… →
- Recall: Abbott Medical — Class II recall: Abbott Navitor Titan, Vision Technology, Transcatheter Aortic Heart Valve, 35 m… →
- Recall: Abbott Medical — Class II recall: Abbott Navitor, Vision Technology, Transcatheter Aortic Heart Valve, 27 mm, NVRO… →
- Recall: Abbott Medical — Class II recall: Abbot Navitor, Vision Technology, Transcatheter Aortic Heart Valve, 29 mm, NVRO-… →
Compiled by Argus HQ Research from FDA primary sources · Reviewed by Andy Gaber, Founder
Cite this record
Reusing this data in reporting or research? Here’s a ready-made citation.
Argus HQ Research (2024). Recall Record: Class III Recall: Merlin@home Transmitter REF EX1100 The Merlin@home" (M@h) transmitter… by Abbott Medical. Digital Empire Holdings LLC. Retrieved from https://argushq.ai/recall/abbott-medical-z-0551-2025-2024-12-04
"Recall Record: Class III Recall: Merlin@home Transmitter REF EX1100 The Merlin@home" (M@h) transmitter… by Abbott Medical." Argus HQ Research, Digital Empire Holdings LLC, 2024, argushq.ai/recall/abbott-medical-z-0551-2025-2024-12-04.
Argus HQ Research. "Recall Record: Class III Recall: Merlin@home Transmitter REF EX1100 The Merlin@home" (M@h) transmitter… by Abbott Medical." Digital Empire Holdings LLC. Accessed August 27, 2026. https://argushq.ai/recall/abbott-medical-z-0551-2025-2024-12-04.
@misc{argushq_argushq_ai_recall_abbott_medical_z_0551_2025_2024_12_04_2024,
title = {Recall Record: Class III Recall: Merlin@home Transmitter REF EX1100 The Merlin@home" (M@h) transmitter… by Abbott Medical},
author = {{Argus HQ Research}},
year = {2024},
publisher = {Digital Empire Holdings LLC},
url = {https://argushq.ai/recall/abbott-medical-z-0551-2025-2024-12-04},
note = {Accessed: August 27, 2026}
}Source: FDA.gov — Recalls ↗

