Device manufacturer, as written on reports

Nxstage Medical: medical device reports filed with FDA

3,722 reports name it as the manufacturer of the device involved, 2002–2026.

Read first · FDA's statement on these data

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product. openFDA, FDA

FDA adds: "Although MDRs are a valuable source of information, this passive surveillance system has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data. In addition, the incidence or prevalence of an event cannot be determined from this reporting system alone due to potential under-reporting of events and lack of information about frequency of device use." And: "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."

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

3,722
reports naming it as manufacturer: 0% of all MAUDE reports; 163
reports, 12 months to August 2026: 176 in the 12 months before; 26.9%
classified as malfunction: 62.3% across all reports; 5.3%
classified as death, as reported: 0.9% across all reports

3,722 medical device reports received by FDA give Nxstage Medical as the manufacturer of the device involved, 0% of the MAUDE database, from February 2002 to August 2026. Manufacturer names are as written on the report; subsidiaries and spelling variants may appear as separate names.

163 reports arrived in the 12 months to August 2026, close to the 176 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 injury (65.7%), malfunction (26.9%) and death (5.3%). Manufacturers are required to report events they learn of, so a large manufacturer with many products in use files many reports. 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."

Brands named most often

Brand	Device type	Reports	Latest 12 months	Classified as death
NxStage System One	Dialyzer, high permeability with or without sealed dialysate system	3,309	120	5.7%
Medisystems Hemodialysis Blood Tubing Set	Set, tubing, blood, with and without anti-regurgitation valve	4	0	5.7%

Brands with a page on this site, 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."

Device types

Product code	Device type	Reports	Share
KDI	Dialyzer, high permeability with or without sealed dialysate system	3,242	87.1%
KPO	Dialysate concentrate for hemodialysis (liquid or powder)	331	8.9%
FII	System, dialysate delivery, sealed	99	2.7%
FIE	Needle, fistula	11	0.3%
FKP	System, dialysate delivery, single patient	10	0.3%
LGZ	Warmer, thermal, infusion fluid	10	0.3%
FJK	Set, tubing, blood, with and without anti-regurgitation valve	8	0.2%
KOC	Accessories, blood circuit, hemodialysis	3	0.1%
FMI	Needle, hypodermic, single lumen	2	0.1%
KDJ	Set, administration, for peritoneal dialysis, disposable	2	0.1%

Reports by month, five years

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

Event type

Death5.3%199

Injury65.7%2,446

Malfunction26.9%1,003

Other1.8%67

Not given0.2%7

Grey bar: all 26,136,888 MAUDE reports. Event type is the filer's classification and is not verified by FDA.

Questions about Nxstage Medical reports

How many FDA device reports name Nxstage Medical as manufacturer?

3,722 reports through August 2026, 163 of them in the latest 12 months.

Which of its brands appear most often?

NxStage System One (3,309) and Medisystems Hemodialysis Blood Tubing Set (4).

Which device types does it report on?

dialyzer, high permeability with or without sealed dialysate system (87.1%), dialysate concentrate for hemodialysis (liquid or powder) (8.9%), system, dialysate delivery, sealed (2.7%) and needle, fistula (0.3%).

Does a high count say something about the manufacturer?

Not by itself. Manufacturers must file a report for every event they become aware of, so report volume follows the number 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."

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. Manufacturer names are pooled after company suffixes (Inc., LLC, GmbH and similar) are dropped; names that read as a person rather than an organisation are never published. 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.