Reported Reactions

Devices › Dialyzer, capillary, hollow fiber

Device brand name · Dialyzer capillary hollow fiber

Polyflux: medical device reports filed with FDA

671 reports name it, 2022–2026. Manufacturer given most often on reports: Baxter Healthcare. Product code FJI.

671
device reports naming the brand
0% of all MAUDE reports · about 152 a year
116
reports, 12 months to August 2026
126 in the 12 months before
79.9%
classified as malfunction
55.2% across the product code
0.3%
classified as death, as reported
2 reports · not verified by FDA

671 medical device reports received by FDA name the brand "Polyflux" (dialyzer capillary hollow fiber); the manufacturer given most often on reports is Baxter Healthcare; received from February 2022 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

116 reports arrived in the 12 months to August 2026, close to the 126 of 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 (79.9%), injury (19.8%) and death (0.3%); across all dialyzer, capillary, hollow fiber reports (product code FJI) death is recorded in 1.9% and malfunction in 55.2%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are fluid/blood leak (70.9%), device contamination with chemical or other material (8%) and break (6.1%). The patient problems coded most often are hypersensitivity/allergic reaction, dyspnea 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

01326Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 1Mar 2022: 15Apr 2022: 3May 2022: 14Jun 2022: 11Jul 2022: 12Aug 2022: 15Sep 2022: 9Oct 2022: 12Nov 2022: 19Dec 2022: 202023Jan 2023: 15Feb 2023: 7Mar 2023: 8Apr 2023: 17May 2023: 14Jun 2023: 14Jul 2023: 12Aug 2023: 18Sep 2023: 23Oct 2023: 22Nov 2023: 18Dec 2023: 172024Jan 2024: 13Feb 2024: 26Mar 2024: 11Apr 2024: 11May 2024: 14Jun 2024: 16Jul 2024: 10Aug 2024: 12Sep 2024: 7Oct 2024: 16Nov 2024: 12Dec 2024: 92025Jan 2025: 11Feb 2025: 8Mar 2025: 19Apr 2025: 12May 2025: 3Jun 2025: 3Jul 2025: 15Aug 2025: 11Sep 2025: 17Oct 2025: 12Nov 2025: 7Dec 2025: 42026Jan 2026: 10Feb 2026: 7Mar 2026: 4Apr 2026: 11May 2026: 7Jun 2026: 13Jul 2026: 15Aug 2026: 9

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

0931852022: 13120222023: 18520232024: 15720242025: 12220252026: 762026

Event type and report source

Event type, as classified on the report

Death0.3%2
Injury19.8%133
Malfunction79.9%536
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%671
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 8,433 reports carrying product code FJI. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Fluid/blood leak47670.9%35.6%
Device contamination with chemical or other material548%0.3%
Breakthe device broke416.1%0.9%
Crackthe device cracked375.5%2%
Material puncture/hole50.7%0%
Compatibility problem30.4%0%
Fracturea broken bone20.3%0.1%
Leak/splashthe device leaked20.3%21.2%
Air/gas in device10.1%0%
Contamination10.1%0%
Disconnection10.1%0.1%

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
Hypersensitivity/allergic reaction10415.5%
Dyspneashortness of breath466.9%
Low blood pressure/ hypotension365.4%
Chest painchest pain223.3%
Nauseafeeling sick203%
Diaphoresis182.7%
Discomfortdiscomfort152.2%
Vomitingbeing sick131.9%
Coughcough121.8%
Itching sensation111.6%
Tachycardiafast heart rate81.2%
High blood pressure/ hypertension71%
Abdominal painstomach or belly pain60.9%
Asthmaasthma60.9%
Dizzinesslight-headedness or unsteadiness60.9%

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

In context

MeasurePolyfluxProduct code FJIAll MAUDE reports
Reports6718,43326,136,888
Share of that pool—8%0%
Classified as death, per 1,000 reports3199
Classified as injury19.8%37.6%36.2%
Classified as malfunction79.9%55.2%62.3%
Filed by the manufacturer100%75.4%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 FJI

BrandReportsLatest 12 monthsClassified as death
Optiflux 180nre Dialyzer Finished Assy3,373690.6%
Ct Gamma Dialyzer Ct 190g1,01100.3%
Optiflux 160nre Dialyzer Finished Assy2,840270.8%
Unknown Distributed Dialyzer36200%
Terumo Taf175 Hf/Cr/1 75/M24000%
Psn Dialyzer Psn 21059400.8%
Clirans Taf Hf Dialyzer21200%
Ca-Hp Dialyzer Ca-Hp 21017701.1%
Optiflux 200nre Dialyzer Finished Assy38650.5%
Terumo18102.8%
Fresenius31406.1%
Dialyzer270692.2%
Baxter82133.8%
Optiflux F250nre Dialyzer25600.4%
Fusa F80a Hf/Ps/1 8/H16601.2%

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 Polyflux reports

How many FDA reports name Polyflux?

671 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 116 in the latest 12 months.

What kinds of events are reported?

malfunction (79.9%), injury (19.8%) and death (0.3%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

fluid/blood leak (70.9%), device contamination with chemical or other material (8%), break (6.1%), crack (5.5%) and material puncture/hole (0.7%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Polyflux 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.