Philips Medical Systems, Inc. HeartStart MRx monitor/defibrillator Models M3535A, M3536A, M3536J, M3536M, M3536MC, M3536M2, M3536M4, M3536M5, M3536M6 Product Usage: The HeartStart MRx is for use for the termination of ventricular tachycardia and ventricular fibrillation. The device is for use by qualified medical personnel trained in the operation of the device and qualified by training in basic life support, advanced cardiac support, or defibrillation. It must be used by or on the order of a physician Recall
Class II: A situation in which use of, or exposure to, a violative product may cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote
Class II recall indicates potential for temporary health effects.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
HeartStart MRx monitor/defibrillator Models M3535A, M3536A, M3536J, M3536M, M3536MC, M3536M2, M3536M4, M3536M5, M3536M6 Product Usage: The HeartStart MRx is for use for the termination of ventricular tachycardia and ventricular fibrillation. The device is for use by qualified medical personnel trained in the operation of the device and qualified by training in basic life support, advanced cardiac support, or defibrillation. It must be used by or on the order of a physician
Brand
Philips Medical Systems, Inc.
Lot Codes / Batch Numbers
US00554177
Products Sold
Model/Serial Number Range: Model M3535A: US00100100 to US00578696 Model M3536A: US00100902 to US00576650 Model M3536J: US00209838 to US00332675 Model M3536M: US00500002 to US00553553 Model M3536MC: US00500001 to US00500087 Model M3536M2: US00554176, US00554177, US00554178 Model M3536M4: US00500003 to US00574869 Model M3536M5: US00500001 to US00562935 Model M3536M6: US00554358 to US00576619
Philips Medical Systems, Inc. is recalling HeartStart MRx monitor/defibrillator Models M3535A, M3536A, M3536J, M3536M, M3536MC, M3536M2, M3536 due to MRx monitor/defibrillator could reboot at an indeterminate time, potentially causing therapy to be interrupted or delayed. This is a Class I recall, indicating a high risk of serious health consequences or death. Based on FDA medical device enforcement report.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
MRx monitor/defibrillator could reboot at an indeterminate time, potentially causing therapy to be interrupted or delayed
Recommended Action
Per FDA guidance
Healthcare providers and patients should stop using the device and contact the manufacturer for further instructions. Report problems to FDA MedWatch.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticePage updated: Jan 11, 2026