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	06/22/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Analysis was performed by onsite service personnel which included parameter simulation and usage verification.The results of the analysis confirmed the nibp measurement was incorrect.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 nibp cuff.The issue was resolved by replacing the nibp cuff and the product is back in service.Based on the information available and results of additional analysis, no further action is necessary at this time.If additional information is received, the complaint file will be reopened for further investigation.
Event or Problem Description
Philips received a complaint on an intellivue mx500 patient monitor indicating that during testing of the device, it was identified that the non-invasive blood pressure (nibp) measurement was incorrect.The device was not in use on patient at time of event, there was no adverse event reported.

• 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 ; 70314632031
• MDR Report Key: 25668270
• Report Number: 9610816-2026-101269
• Device Sequence Number: 5701669
• Product Code: MHX
• UDI-Device Identifier: 00884838038776
• UDI-Public: (01)00884838038776
• Combination Product (Y/N): N
• Initial Reporter Country: MX
• 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): 06/30/2026

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: Other
• Device Model Number: INTELLIVUE PATIENT MONITOR MX500
• Device Catalogue Number: 866064
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/22/2026
• Initial Report FDA Received Date: 06/30/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 01/15/2026
• 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 Sex: Unknown