Medtronic, Inc.

Ventricular fibrillation (VF) occurred during radiofrequency (RF) therapy with the Medtronic Sphere-9 catheter in patients who have a Biotronik Implantable Cardioverter Defibrillator (ICD) or Biotronik Cardiac Resynchronization Therapy-Defibrillator (CRT-D) implanted. The observation is caused by an interaction between the Sphere-9 catheter current flow and a safety feature built into Biotronik ICDs and CRT Ds. Medtronic recommends physicians use increased caution when using the Sphere-9 catheter for RF ablation therapy in patients implanted with a Biotronik ICD/CRT-D system, and to ensure external defibrillation systems are readily available.

Stents may be impacted by a Nitinol anomaly which causes a reduced stent diameter when deployed and corresponding reduced radial force. Issue may result in stent migration.

There is a potential for delayed time to high-voltage (HV) therapy should a rare sequence of events occur.

In prior SmartSync application versions, the Abort button stopped the test that was selected. During an induction test, there was a limited window of time for the user to abort a therapy, thereby limiting the user's ability to cancel a high voltage therapy delivery.

In prior SmartSync application versions, the Abort button stopped the test that was selected. During an induction test, there was a limited window of time for the user to abort a therapy, thereby limiting the user's ability to cancel a high voltage therapy delivery.

A software update for Medtronic CareLink SmartSync Device Manager (SmartSync) is now available. The update eliminates the potential display of an erroneous electrical reset (pop-up) message upon interrogation with a SmartSync Device Manager. The erroneous message indicates an electrical reset has occurred. However, no reset has actually occurred and there are no parameter changes or loss of diagnostics. Prior to this software update, if an erroneous SmartSync message was displayed, confusion regarding the message could have caused a clinician to consider an unnecessary system revision. Medtronic has received 39 reports of this display error with two instances of unnecessary device explant through 30 April 2025.

A software update for Medtronic CareLink SmartSync Device Manager (SmartSync) is now available. The update eliminates the potential display of an erroneous electrical reset (pop-up) message upon interrogation with a SmartSync Device Manager. The erroneous message indicates an electrical reset has occurred. However, no reset has actually occurred and there are no parameter changes or loss of diagnostics. Prior to this software update, if an erroneous SmartSync message was displayed, confusion regarding the message could have caused a clinician to consider an unnecessary system revision. Medtronic has received 39 reports of this display error with two instances of unnecessary device explant through 30 April 2025.

Identified devices may experience sudden battery power failure without alarm, power supply power-on-resets, and interruption of therapy. Potential patient harms include insufficient pacing support leading to cardiac arrest, syncope, or hospitalization; or system revision (explant/replacement) leading to infection, hematoma, or temporary impairment.

Medtronic CareLink 2090 programmers with serial number prefixes PKK0 and PKK1 have the potential for autonomous cursor motion when Finger Touchscreen capability is enabled by software version 3.2 or higher.

Potential for manufacturing defect. Weld crack led to devices failing at the leak check step in manufacturing.