Reported Reactions

Devices › Monitor, physiological, patient (without arrhythmia detection or alarms)

Device brand name · Monitor physiological patient without arrhythmia detection or alarms

Rad-97: medical device reports filed with FDA

316 reports name it, 2024–2026. Manufacturer given most often on reports: Masimo - 15750 Alton Pkwy. Product code MWI.

316
device reports naming the brand
0% of all MAUDE reports · about 131 a year
246
reports, 12 months to August 2026
54 in the 12 months before
99.1%
classified as malfunction
91.1% across the product code
0.3%
classified as death, as reported
1 reports · not verified by FDA

FDA's MAUDE database holds 316 reports that name the brand "Rad-97" (monitor physiological patient without arrhythmia detection or alarms), received between February 2024 and August 2026; the manufacturer given most often on reports is Masimo - 15750 Alton Pkwy. Spellings of one product vary from report to report.

246 reports arrived in the 12 months to August 2026, up 356% from 54 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 (99.1%), death (0.3%) and injury (0.3%); across all monitor, physiological, patient (without arrhythmia detection or alarms) reports (product code MWI) death is recorded in 2.2% and malfunction in 91.1%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are unexpected shutdown (39.9%), sensing intermittently (13.6%) and device alarm system (12.7%). The patient problems coded most often are brain injury, bruise/contusion and erythema. 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

02652Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 1Mar 2024: 0Apr 2024: 0May 2024: 4Jun 2024: 4Jul 2024: 3Aug 2024: 4Sep 2024: 6Oct 2024: 1Nov 2024: 2Dec 2024: 62025Jan 2025: 2Feb 2025: 5Mar 2025: 1Apr 2025: 1May 2025: 0Jun 2025: 9Jul 2025: 12Aug 2025: 9Sep 2025: 5Oct 2025: 11Nov 2025: 9Dec 2025: 102026Jan 2026: 6Feb 2026: 5Mar 2026: 22Apr 2026: 27May 2026: 37Jun 2026: 24Jul 2026: 52Aug 2026: 38

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

01062112024: 3120242025: 7420252026: 2112026

Event type and report source

Event type, as classified on the report

Death0.3%1
Injury0.3%1
Malfunction99.1%313
Other0.3%1
Not given0%0

Who filed the report

Manufacturer report99.7%315
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0.3%1

Grey bar: all 2,065 reports carrying product code MWI. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Unexpected shutdown12639.9%11.7%
Sensing intermittently4313.6%4.7%
Device alarm system4012.7%5.3%
Breakthe device broke3410.8%2%
No audible alarm3410.8%4.8%
Incorrect, inadequate or imprecise result or readings227%3.3%
Incorrect measurementthe device measured wrongly165.1%12.1%
Defective alarm134.1%1.8%
Device sensing problem82.5%0.8%
Inappropriate or unexpected reset61.9%2.9%
Failure to sense41.3%0.3%
Low readingsreadings were too low41.3%2.3%
High readingsreadings were too high30.9%4.4%
Loose or intermittent connection30.9%0.6%
Application program freezes or fails to launch20.6%2.2%
Accessory incompatible10.3%0%
Overheating of device10.3%1.6%

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
Brain injury10.3%
Bruise/contusion10.3%
Erythemaskin redness10.3%
Hypoxialow oxygen10.3%
Painpain, site not specified10.3%

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

In context

MeasureRad-97Product code MWIAll MAUDE reports
Reports3162,06526,136,888
Share of that pool—15.3%0%
Classified as death, per 1,000 reports3229
Classified as injury0.3%5.6%36.2%
Classified as malfunction99.1%91.1%62.3%
Filed by the manufacturer99.7%92%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 MWI

BrandReportsLatest 12 monthsClassified as death
Xper Flex Cardio Physiomonitoring System21162.4%
Carescape4,9022,2890.1%
Radical-7516791.7%
IntelliVue Multi-Measurement Module X34784011.7%

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 Rad-97 reports

How many FDA reports name Rad-97?

316 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 246 in the latest 12 months.

What kinds of events are reported?

malfunction (99.1%), death (0.3%) and injury (0.3%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

unexpected shutdown (39.9%), sensing intermittently (13.6%), device alarm system (12.7%), break (10.8%) and no audible alarm (10.8%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (99.7%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Rad-97 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.