Reported Reactions

Devices › Warmer, blood, non-electromagnetic radiation

Device brand name · Warmer blood non-electromagnetic radiation

Level 1 Fast Flow Fluid Warmer: medical device reports filed with FDA

635 reports name it, 2020–2026. Manufacturer given most often on reports: Oakdale. Product code BSB.

635
device reports naming the brand
0% of all MAUDE reports · about 103 a year
29
reports, 12 months to August 2026
108 in the 12 months before
98.9%
classified as malfunction
96.8% across the product code
0.8%
classified as death, as reported
5 reports · not verified by FDA

FDA's MAUDE database holds 635 reports that name the brand "Level 1 Fast Flow Fluid Warmer" (warmer blood non-electromagnetic radiation), received between May 2020 and July 2026; the manufacturer given most often on reports is Oakdale. Spellings of one product vary from report to report.

29 reports arrived in the 12 months to August 2026, down 73% from 108 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 (98.9%), death (0.8%) and injury (0.3%); across all warmer, blood, non-electromagnetic radiation reports (product code BSB) death is recorded in 1% and malfunction in 96.8%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are device alarm system (12.8%), temperature problem (8.5%) and fluid/blood leak (8%). The patient problems coded most often are no patient involvement, cardiac arrest and low blood pressure/ hypotension. 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

03162Sep 2021: 0Oct 2021: 2Nov 2021: 8Dec 2021: 12022Jan 2022: 6Feb 2022: 15Mar 2022: 11Apr 2022: 23May 2022: 21Jun 2022: 8Jul 2022: 6Aug 2022: 20Sep 2022: 3Oct 2022: 62Nov 2022: 1Dec 2022: 02023Jan 2023: 2Feb 2023: 11Mar 2023: 14Apr 2023: 12May 2023: 25Jun 2023: 21Jul 2023: 14Aug 2023: 19Sep 2023: 15Oct 2023: 19Nov 2023: 17Dec 2023: 52024Jan 2024: 19Feb 2024: 15Mar 2024: 25Apr 2024: 16May 2024: 6Jun 2024: 9Jul 2024: 15Aug 2024: 3Sep 2024: 19Oct 2024: 8Nov 2024: 2Dec 2024: 92025Jan 2025: 10Feb 2025: 3Mar 2025: 8Apr 2025: 22May 2025: 9Jun 2025: 5Jul 2025: 5Aug 2025: 8Sep 2025: 4Oct 2025: 1Nov 2025: 5Dec 2025: 22026Jan 2026: 0Feb 2026: 1Mar 2026: 4Apr 2026: 2May 2026: 4Jun 2026: 5Jul 2026: 1Aug 2026: 0

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

0881762020: 1220202021: 2820212022: 17620222023: 17420232024: 14620242025: 8220252026: 172026

Event type and report source

Event type, as classified on the report

Death0.8%5
Injury0.3%2
Malfunction98.9%628
Other0%0
Not given0%0

Who filed the report

Manufacturer report99.8%634
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0.2%1

Grey bar: all 2,220 reports carrying product code BSB. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Device alarm system8112.8%10.7%
Temperature problem548.5%6.1%
Fluid/blood leak518%24.5%
Insufficient heating386%3.7%
Overheating of device375.8%2.9%
Pressure problem345.4%5.2%
Insufficient flow or under infusion314.9%3.6%
Defective alarm193%1.6%
Breakthe device broke182.8%2%
Defective component182.8%1.8%
Failure to pump182.8%1.6%
Leak/splashthe device leaked182.8%4.1%
Excessive heating162.5%1.6%
Infusion or flow problema problem with flow or infusion162.5%1.5%
False alarm152.4%1.7%
Device sensing problem142.2%1.4%
Failure to power up142.2%1.6%
Component missing121.9%1.1%
Device markings/labelling problema problem with the device markings or label111.7%1.5%
Fracturea broken bone111.7%0.9%

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 involvement71.1%
Cardiac arrestthe heart stopped10.2%
Low blood pressure/ hypotension10.2%

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

In context

MeasureLevel 1 Fast Flow Fluid WarmerProduct code BSBAll MAUDE reports
Reports6352,22026,136,888
Share of that pool—28.6%0%
Classified as death, per 1,000 reports8109
Classified as injury0.3%1.2%36.2%
Classified as malfunction98.9%96.8%62.3%
Filed by the manufacturer99.8%96%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 BSB

BrandReportsLatest 12 monthsClassified as death
Level 162800.5%
Level 1 Hotline Fluid Warmer1,14310%
Ranger4911511.2%
Level 1 Hotline Fluid Warmer 390580110%
Level 1 Hotline Blood And Fluid Warmer753170%
Level 1 Hotline Low Flow System21900%
Prismaflex55547.7%
Cadd Cassette Reservoirs - Flow Stop58700.2%
Superdimension Inreach Bronchus System213014.1%

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 Level 1 Fast Flow Fluid Warmer reports

How many FDA reports name Level 1 Fast Flow Fluid Warmer?

635 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 29 in the latest 12 months.

What kinds of events are reported?

malfunction (98.9%), death (0.8%) and injury (0.3%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

device alarm system (12.8%), temperature problem (8.5%), fluid/blood leak (8%), insufficient heating (6%) and overheating of device (5.8%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (99.8%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Level 1 Fast Flow Fluid Warmer 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.