MAUDE Adverse Event Report: Philips Medizin Systeme Böblingen GmbH IntelliVue MX500 Patient Monitor; Monitor, Physiological, Patient(With Arrhythmia Detection Or Alarms)

Model Number	IntelliVue Patient Monitor MX500
Medical Device Problem Code	Incorrect Measurement (1383)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/17/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the device was providing inaccurate ecg data.The device was in use on a patient at the time of the event.There was no adverse event reported.
Additional Manufacturer Narrative
An analysis was performed by a philips field service engineer (fse).The fse determined that the device was providing poor ecg signal with artifacts even after replacing the electrodes.The fse determined that the ecg lead set needed to be replaced.Based on the results of the analysis, it was determined that the product has malfunctioned and the most likely cause of the reported problem was a faulty ecg lead set.The issue was resolved by replacing the ecg lead set cables reporting institution phone # unknown.Reporter phone # (b)(6).

• Brand Name: IntelliVue MX500 Patient Monitor
• Common Device Name: Monitor, Physiological, Patient(With Arrhythmia Detection Or Alarms)
• Manufacturer (Section D): Philips Medizin Systeme Böblingen GmbH; hewlett-packard-str. 2,; b1-3/d6; boblingen 71034 ; GM 71034
• Manufacturer (Section G): Philips Medizin Systeme Böblingen GmbH; hewlett-packard-str. 2,; b1-3/d6; boblingen 71034 ; GM 71034
• Manufacturer Contact: hauke schik ; hewlett-packard-str. 2,; b1-3/d6; boblingen 71034 ; GM 71034 ; +49(703)14632031
• MDR Report Key: 50272471
• Report Number: 9610816-2026-101673
• Device Sequence Number: 10578171
• Product Code: MHX
• UDI-Device Identifier: 00884838038776
• UDI-Public: (01)00884838038776
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K131872
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,User Facility
• Initial Reporter Occupation: Biomedical Engineer
• Type of Report: Initial
• Report Date (Section B): 08/17/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: IntelliVue Patient Monitor MX500
• Device Catalogue Number: 866064
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/22/2026
• Initial Report FDA Received Date: 08/17/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 08/14/2017
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Age: 14 YR
• Patient Sex: Female