Reported Reactions

Devices › Monitor, physiological, patient(with arrhythmia detection or alarms)

Device brand name · Intellivue mx450 patient monitor

IntelliVue MX450 Patient Monitor: medical device reports filed with FDA

448 reports name it, 2014–2026. Manufacturer given most often on reports: Philips Medizin Systeme B Blingen. Product code MHX.

448
device reports naming the brand
0% of all MAUDE reports · about 37 a year
123
reports, 12 months to August 2026
72 in the 12 months before
84.8%
classified as malfunction
82.1% across the product code
7.6%
classified as death, as reported
34 reports · not verified by FDA

448 medical device reports received by FDA name the brand "IntelliVue MX450 Patient Monitor" (intellivue mx450 patient monitor); the manufacturer given most often on reports is Philips Medizin Systeme B Blingen; received from June 2014 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

123 reports arrived in the 12 months to August 2026, up 71% from 72 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (84.8%), death (7.6%) and injury (7.6%); across all monitor, physiological, patient(with arrhythmia detection or alarms) reports (product code MHX) death is recorded in 5.9% and malfunction in 82.1%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are no audible alarm (35.9%), defective alarm (13.8%) and no audible prompt/feedback (12.7%). The patient problems coded most often are no patient involvement, death and cardiac arrest. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

01019Sep 2021: 2Oct 2021: 2Nov 2021: 3Dec 2021: 22022Jan 2022: 3Feb 2022: 6Mar 2022: 1Apr 2022: 4May 2022: 3Jun 2022: 1Jul 2022: 2Aug 2022: 4Sep 2022: 0Oct 2022: 2Nov 2022: 2Dec 2022: 52023Jan 2023: 1Feb 2023: 2Mar 2023: 2Apr 2023: 6May 2023: 3Jun 2023: 5Jul 2023: 3Aug 2023: 6Sep 2023: 5Oct 2023: 4Nov 2023: 5Dec 2023: 52024Jan 2024: 4Feb 2024: 7Mar 2024: 3Apr 2024: 4May 2024: 3Jun 2024: 8Jul 2024: 6Aug 2024: 3Sep 2024: 5Oct 2024: 5Nov 2024: 5Dec 2024: 42025Jan 2025: 8Feb 2025: 5Mar 2025: 7Apr 2025: 4May 2025: 5Jun 2025: 9Jul 2025: 7Aug 2025: 8Sep 2025: 6Oct 2025: 8Nov 2025: 13Dec 2025: 92026Jan 2026: 4Feb 2026: 9Mar 2026: 7Apr 2026: 14May 2026: 19Jun 2026: 12Jul 2026: 9Aug 2026: 13

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

045892014: 420142015: 52016: 520162017: 202018: 2120182019: 222020: 2120202021: 372022: 3320222023: 472024: 5720242025: 892026: 872026

Event type and report source

Event type, as classified on the report

Death7.6%34
Injury7.6%34
Malfunction84.8%380
Other0%0
Not given0%0

Who filed the report

Manufacturer report99.6%446
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0.4%2

Grey bar: all 32,636 reports carrying product code MHX. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
No audible alarm16135.9%11.5%
Defective alarm6213.8%3.4%
No audible prompt/feedback5712.7%3.5%
Device alarm system276%8.1%
Incorrect measurementthe device measured wrongly214.7%1.7%
Device displays incorrect message112.5%4.3%
Application program freezes or fails to launch102.2%1.5%
Incorrect, inadequate or imprecise result or readings81.8%1.2%
Therapeutic or diagnostic output failure81.8%0.5%
Device operates differently than expectedthe device behaved unexpectedly71.6%9.3%
Excessive heating61.3%0.1%
Audible prompt/feedback problem51.1%0.3%
Defective component51.1%0.5%
Display or visual feedback problem51.1%3.2%
No device output51.1%1%
Unable to obtain readings51.1%2.3%
Alarm not visible40.9%0.6%
Device fell40.9%0.3%
Low readingsreadings were too low40.9%0.4%
No display/image40.9%4.1%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
No patient involvement194.2%
Deaththe patient died; cause not stated by this term153.3%
Cardiac arrestthe heart stopped61.3%
Low oxygen saturation51.1%
Bradycardiaslow heart rate40.9%
Electric shockan electric shock30.7%
Asystole20.4%
Cardiopulmonary arrest20.4%
Hypoxialow oxygen20.4%
Injurya physical injury20.4%
Appropriate clinical signs, symptoms and conditions term/code not available10.2%
Cyanosis10.2%
Heart failure10.2%
Pneumonialung infection10.2%
Sepsisa severe body-wide response to infection10.2%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureIntelliVue MX450 Patient MonitorProduct code MHXAll MAUDE reports
Reports44832,63626,136,888
Share of that pool—1.4%0%
Classified as death, per 1,000 reports76599
Classified as injury7.6%11.2%36.2%
Classified as malfunction84.8%82.1%62.3%
Filed by the manufacturer99.6%93.4%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code MHX

BrandReportsLatest 12 monthsClassified as death
Patient Information Center iX1,94161910.4%
uCor Heart Failure and Arrhythmia Management System1,8777620%
Tempus Pro1,8501080.5%
Cns-6201a1,72000.8%
IntelliVue Multi Measurement Server X21,9241351.7%
Cns-6801a1,05801.5%
Intellivue Information Center Ix95207.5%
Intellivue X377701.5%
Tempus Pro, Printer5624000%
Piic Ix Hardware53804.6%
Xhibit Central Station4921540.8%
IntelliVue Multi-Measurement Module X34784011.7%
Pu-681ra4372221.4%
Cns-9700a39300.3%
Arrhythmia Management System38140%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about IntelliVue MX450 Patient Monitor reports

How many FDA reports name IntelliVue MX450 Patient Monitor?

448 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 123 in the latest 12 months.

What kinds of events are reported?

malfunction (84.8%), death (7.6%) and injury (7.6%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

no audible alarm (35.9%), defective alarm (13.8%), no audible prompt/feedback (12.7%), device alarm system (6%) and incorrect measurement (4.7%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (99.6%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that IntelliVue MX450 Patient Monitor was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.