Predicate Research Report · generated 2026-08-22 · Print / save as PDF · Save to account
Circadian, Inc. — Predicate Candidate Screening
13 FDA 510(k) clearances under this manufacturer; the 50 most recent screened below.
105 daysmedian FDA review time
170 days90th percentile
13clearances measured
| K-number | Device | Applicant | Decided | Review days | Recalls (K-match) |
|---|---|---|---|---|---|
| K921878 | SCANMATE III | Circadian, Inc. | 1992-09-11 | 144 | 0 |
| K894956 | CIRCAMED HOLTER VERSION 4 | Circadian, Inc. | 1990-02-05 | 185 | 0 |
| K874641 | CIRCADIAN STRESS TEST II | Circadian, Inc. | 1988-04-01 | 140 | 0 |
| K874155 | CIRCAMED MONITOR REMOTE START CONDUCTANCE METER | Circadian, Inc. | 1987-11-23 | 41 | 0 |
| K871251 | CIRCAMED FULL DISCLOSURE SYSTEM | Circadian, Inc. | 1987-05-22 | 53 | 0 |
| K860973 | CIRCADIAN STRESS TEST SYSTEM | Circadian, Inc. | 1986-08-25 | 164 | 0 |
| K851517 | CIRCA MED SINGLE-CHANNEL-AMBULATORY CARDIAC MONITO | Circadian, Inc. | 1985-10-02 | 170 | 0 |
| K851643 | REMOTE CONTROL MODULE | Circadian, Inc. | 1985-09-09 | 143 | 0 |
| K840741 | PULMONARY FUNCTION TESTING STS | Circadian, Inc. | 1984-03-05 | 33 | 0 |
| K833619 | CONDUCTANCE METER | Circadian, Inc. | 1984-01-27 | 105 | 0 |
| K830830 | CIRCA MED TWO-CHANNEL | Circadian, Inc. | 1983-06-18 | 94 | 0 |
| K810698 | PHARMALOG | Circadian, Inc. | 1981-04-10 | 25 | 0 |
| K800214 | CIRCAMED I | Circadian, Inc. | 1980-02-29 | 28 | 0 |
Methodology
Recall counts reflect FDA recall records explicitly referencing each K-number; FDA links recalls to K-numbers inconsistently, so 0 means "none found in FDA records," not "never recalled." Data: FDA openFDA, refreshed weekly. Verify decisions of consequence against the primary source. Full candidate set and CSV export: atlasbyauro.com.
Prepared with Atlas
Predicate research, review-time statistics and recall monitoring for 510(k) teams — atlasbyauro.com/fda