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Unrated Medical device recall · FDA · Published April 7, 2021

Medtronic CRHF Cobalt HF Quad MRI Defibrillators: Missing Weld Risk

Medtronic recalls Cobalt HF Quad MRI SureScan CRT-D devices with possible missing welds that could cause device failure. Affected units have specific serial numbers and product numbers.

🇺🇸 FDA recall #Z-1650-2021Medical deviceMedtr: Cardiac Rhythm ›
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Recalling firmMedtronic Inc., Cardiac Rhythm and Heart Failure (CRHF)8200 Coral Sea St Ne · Mounds View, MN 55112-4391
✎ GovInfoNow plain-language explainer

What happened, in plain English

Medtronic is recalling certain Cobalt HF Quad MRI SureScan defibrillators with Cardiac Resynchronization Therapy (CRT-D) due to a potential missing weld that could cause device failure. This affects patients with specific serial numbers and product numbers. Read more at govinfonow.com/recall/62843-medtronic-crhf-cobalt-hf-quad-mri-defibrillators-missing-weld-risk.

Source Summary by GovInfoNow · govinfonow.com/recall/62843-medtronic-crhf-cobalt-hf-quad-mri-defibrillators-missing-weld-risk · Updated August 19, 2026 · FDA enforcement record: FDA #Z-1650-2021

Cite this page

“Medtronic CRHF Cobalt HF Quad MRI Defibrillators: Missing Weld Risk.” GovInfoNow, updated August 19, 2026. https://govinfonow.com/recall/62843-medtronic-crhf-cobalt-hf-quad-mri-defibrillators-missing-weld-risk. Based on FDA recall #Z-1650-2021 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-1650-2021%22&limit=1).

Why it’s dangerous

The device may have a missing resistance spot weld (RSW) during manufacturing. This defect could lead to device failure, though the exact mechanism of failure isn't specified in the recall.

Who’s affected

Patients with the recalled Cobalt HF Quad MRI SureScan CRT-D devices are affected. Those with the specific serial numbers RTO601595S and RTO601624S are most at risk.

How to tell if you have this one

Check for the product number DTPB2D4 and unique serial numbers RTO601595S or RTO601624S on the device. The device is a multiprogrammable cardiac monitor that regulates heart rate.

  • Brand
    Medtr: Cardiac Rhythm
  • Category
    Medical device
Based on the official FDA remedy

What to do — step by step

  1. Check Device Details

    Look for product number DTPB2D4 and serial numbers RTO601595S or RTO601624S on the device.

Where it went and when

Where it was distributed

Distributed nationwide.

Alaska: yesAKMaine: yesMEVermont: yesVTNew Hampshire: yesNHWashington: yesWAIdaho: yesIDMontana: yesMTNorth Dakota: yesNDMinnesota: yesMNIllinois: yesILWisconsin: yesWIMichigan: yesMINew York: yesNYRhode Island: yesRIMassachusetts: yesMAOregon: yesORNevada: yesNVWyoming: yesWYSouth Dakota: yesSDIowa: yesIAIndiana: yesINOhio: yesOHPennsylvania: yesPANew Jersey: yesNJConnecticut: yesCTCalifornia: yesCAUtah: yesUTColorado: yesCONebraska: yesNEMissouri: yesMOKentucky: yesKYWest Virginia: yesWVVirginia: yesVAMaryland: yesMDDelaware: yesDEArizona: yesAZNew Mexico: yesNMKansas: yesKSArkansas: yesARTennessee: yesTNNorth Carolina: yesNCSouth Carolina: yesSCDistrict of Columbia: yesDCOklahoma: yesOKLouisiana: yesLAMississippi: yesMSAlabama: yesALGeorgia: yesGAHawaii: yesHITexas: yesTXFlorida: yesFL

FDA distribution: “US Nationwide distribution in the state of North Carolina.” States read from FDA’s own wording; “not listed” means the notice does not name it.

Distributed nationwide.

Recall timeline

FDA terminated this recall 3.4 years after the firm started it.

1. Firm started the recall: Apr 7, 202112. FDA classified it Class II: May 20, 202123. Published in FDA’s Enforcement Report: May 26, 202134. FDA terminated the recall: Aug 23, 2024420212024
  1. Firm started the recall
  2. FDA classified it Class II
  3. Published in FDA’s Enforcement Report
  4. FDA terminated the recall

Dates from the agency record only; steps without a date are left out.

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Where this comes from

The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.

  • Official source: FDA Recall #Z-1650-2021 (April 7, 2021) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-1650-2021 to see it in context.
  • Plain-language summary written by qwen3:4b on August 19, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
  • GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.
GovInfoNow is an independent guide. We are not FDA or any government agency. Always confirm details with the official recall.Data: CPSC · FDA · NHTSA · USDA