PlainRecalls
ModerateClass IIOngoing

FDA Devices recall · Reported June 28, 2023

HeartWare Ventricular Assist Device System. a) Monitor 1521US Explore Tech, b) Monitor 1521GB Explore Tech, c) Monitor 1521IL Explore Tech, d) Monitor 1521DE Explore Tech

Medtronic has identified that the logfiles downloaded from the recently updated Model 1521 monitors (Serial Numbers: MON4xxxxxx for OUS and MON5xxxxxx for US), are unable to be pr…

Recall #
Z-1993-2023
Affected scope
19 units
Initiated
May 16, 2023
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Heartware, Inc. recalled HeartWare Ventricular Assist Device System. a) Monitor 1521US Explore Tech, b) Monitor… - a moderate-severity action.

HeartWare Ventricular Assist Device System. a) Monitor 1521US Explore Tech, b) Monitor… was recalled by Heartware, Inc. in June 28, 2023. Reason: Medtronic has identified that the logfiles downloaded from the recently updated Model 1521 monitors (Serial N…. Check the official notice for the remedy. Verify recall #Z-1993-2023 with the FDA Devices before acting.

The recall

Heartware, Inc. issued this moderate-severity FDA Devices recall-Medtronic has identified that the logfiles downloaded from the recently updated Model 1521 monitors (Serial N….

Moderate
severity level
19 units
affected scope
Class II
classification
June 28, 2023
reported

Sourced from official FDA Devices enforcement records. Verify recall #Z-1993-2023 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

This recall's affected scope, documented in the Recall Profile below, stays within a single-region or limited-distribution footprint. Distribution scope (see Distribution below) 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 - 41,021 medical devices recalls on record

01,0002,0003,0004,000 20052008201120142017202020232026 1,947
Severity1906864652High severity (most serious)Moderate severityLow severity
Where this agency-classified recall sits among FDA Class I/II/III notices

Of 88,244 recalls with an agency hazard classification, 19,068 are high severity, 64,652 moderate, and 4,524 low. A further 16,179 CPSC/NHTSA recalls have no agency class and are excluded from this split. This recall is classified moderate severity.

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

Product description

HeartWare Ventricular Assist Device System. a) Monitor 1521US Explore Tech, b) Monitor 1521GB Explore Tech, c) Monitor 1521IL Explore Tech, d) Monitor 1521DE Explore Tech

Reason for recall

Medtronic has identified that the logfiles downloaded from the recently updated Model 1521 monitors (Serial Numbers: MON4xxxxxx for OUS and MON5xxxxxx for US), are unable to be processed by the Autologs web portal.

Recall Profile

Structured summary of the FDA Devices recall record
Attribute Value
Agency U.S. Food and Drug Administration
Severity class Moderate (Class II)
Status Ongoing
Recall number Z-1993-2023
Date reported June 28, 2023
Date initiated May 16, 2023
Recalling firm Heartware, Inc.
Firm location Miami Lakes, FL
Affected scope 19 units
Distribution Worldwide - US Nationwide distribution in the states of TX, MO, VA, and the countries of Bahrain, UK.

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

Scale of Impact

19 units 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-1993-2023) 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.
  • Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. 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?
HeartWare Ventricular Assist Device System. a) Monitor 1521US Explore Tech, b) Monitor 1521GB Explore Tech, c) Monitor 1521IL Explore Tech, d) Monitor 1521DE Explore Tech. Recalled by Heartware, Inc.. Units affected: 19 units.
Why was this product recalled?
Medtronic has identified that the logfiles downloaded from the recently updated Model 1521 monitors (Serial Numbers: MON4xxxxxx for OUS and MON5xxxxxx for US), are unable to be processed by the Autologs web portal.
Which agency issued this recall?
This recall was issued by the FDA Devices on June 28, 2023. Severity: Moderate. Recall number: Z-1993-2023.
Where was the recalled product distributed?
Distribution: Worldwide - US Nationwide distribution in the states of TX, MO, VA, and the countries of Bahrain, UK..
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.

Nationwide recalls with similar severity or category timing

Drug and device notices outside this firm and state, matched by severity timing and product category.

Compare this recall with GORE VIABIL Short Wire Biliary Endoprosthesis, Model No. VS… → · All Medical Devices recalls

This recall: FDA Devices, reported June 28, 2023. Severity classes follow each agency's own taxonomy; related-recall context is computed across the full archive.

Methodology · Corrections · Archive as of August 2026