Device manufacturer, as written on reports

Tosoh: medical device reports filed with FDA

4,816 reports name it as the manufacturer of the device involved, 2004–2021.

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.

4,816
reports naming it as manufacturer: 0% of all MAUDE reports; 0
reports, 12 months to August 2026: 0 in the 12 months before; 99.4%
classified as malfunction: 62.3% across all reports; 0%
classified as death, as reported: 0.9% across all reports

4,816 medical device reports received by FDA give Tosoh as the manufacturer of the device involved, 0% of the MAUDE database, from July 2004 to September 2021. Manufacturer names are as written on the report; subsidiaries and spelling variants may appear as separate names.

0 reports arrived in the 12 months to August 2026, and none 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 (99.4%), injury (0.4%) and other (0.1%). 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
Tosoh Hlc-723g8 Analyzer G8	Assay, glycosylated hemoglobin	1,299	0	0%
Aia-900	Fluorometer, for clinical use	952	71	0%
Aia-360	Fluorometer, for clinical use	664	42	0%
Aia-2000	Fluorometer, for clinical use	655	57	0%
Tosoh Hlc-723g8 Analyzer	Assay, glycosylated hemoglobin	310	0	0%
Tosoh Hlc-723ga Analyzer G8	Assay, glycosylated hemoglobin	191	0	0%
G7	Assay, glycosylated hemoglobin	75	82	0%

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
KHO	Fluorometer, for clinical use	2,744	57%
LCP	Assay, glycosylated hemoglobin	2,029	42.1%
JJE	Analyzer, chemistry (photometric, discrete), for clinical use	11	0.2%
MMI	Immunoassay method, troponin subunit	11	0.2%
JJC	Analyzer, chemistry (sequential multiple, continuous flow) clinical use	5	0.1%
LPC	Device, angioplasty, laser, coronary	5	0.1%
JFY	Enzymatic method, creatinine	2	0%
CDP	Radioimmunoassay, total triiodothyronine	1	0%
CEC	Radioimmunoassay, free thyroxine	1	0%
DHX	System, test, carcinoembryonic antigen	1	0%

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

Death0%0

Injury0.4%19

Malfunction99.4%4,787

Other0.1%7

Not given0.1%3

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

Questions about Tosoh reports

How many FDA device reports name Tosoh as manufacturer?

4,816 reports through August 2026, 0 of them in the latest 12 months.

Which of its brands appear most often?

Tosoh Hlc-723g8 Analyzer G8 (1,299), Aia-900 (952), Aia-360 (664), Aia-2000 (655) and Tosoh Hlc-723g8 Analyzer (310).

Which device types does it report on?

fluorometer, for clinical use (57%), assay, glycosylated hemoglobin (42.1%), analyzer, chemistry (photometric, discrete), for clinical use (0.2%) and immunoassay method, troponin subunit (0.2%).

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.