510(k) · Cleared
ClearedOmni-Trak Model 3150 Series Patient Monitoring System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Invivo Research, Inc. · MHX Monitor, Physiological, Patient (With Arrhythmia Detection Or Alarms)
Cleared on Mar 4, 1998 after a 289-day review. FDA’s file for it is a 510(k) statement, which names no predicate.
- Decided
- Mar 4, 1998
- Review
- 289 days
- Class
- Class II
- Product code
- MHX
- Recalls
- None
- Predicates
- 0
FDA’s file for it is a 510(k) statement, which names no predicate.
Sources: FDA 510(k) database (decision fields), the FDA 510(k) statement (indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in MHX? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new MHX device
- #1 K251702 IntelliVue Patient Monitor MX750; IntelliVue…score 23.0 · 40 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA’s file for it is a 510(k) statement, which names no predicate.
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
How does its category compare?
All MHX devicesMHX Monitor, Physiological, Patient (With Arrhythmia Detection Or Alarms): FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · MHX
8in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MHX
192in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MHX
21so far in 2026, the most since 2007
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · MHX
3,761in 2025
MAUDE reports naming product code MHX, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 15 | 96 | 3 | 131 |
| 2008 | 16 | 58 | 2 | 232 |
| 2009 | 13 | 57 | 7 | 382 |
| 2010 | 20 | 90 | 13 | 955 |
| 2011 | 12 | 81 | 16 | 949 |
| 2012 | 16 | 88 | 11 | 676 |
| 2013 | 21 | 120 | 14 | 1,997 |
| 2014 | 13 | 248 | 6 | 1,609 |
| 2015 | 14 | 203 | 5 | 1,284 |
| 2016 | 13 | 149 | 7 | 1,105 |
| 2017 | 14 | 134 | 6 | 1,115 |
| 2018 | 11 | 203 | 12 | 2,157 |
| 2019 | 7 | 243 | 6 | 1,462 |
| 2020 | 11 | 196 | 0 | 1,714 |
| 2021 | 5 | 195 | 0 | 2,423 |
| 2022 | 15 | 189 | 6 | 1,470 |
| 2023 | 8 | 229 | 3 | 2,254 |
| 2024 | 5 | 181 | 3 | 2,814 |
| 2025 | 8 | 192 | 15 | 3,761 |
| 2026 | 14 | 205 | 21 | — |
What is it indicated for?
This device is intended for use as a patient vital signs monitor during magnetic resonance imaging (MRI) scans. It is intended to be used by or on the order of a physician or similarly qualified health care professional. This device is intended for use in the hospital environment (MRI, Radiology Clinic, or similar settings). This device is not intended for home use.
* This device includes the capability for monitoring the following patient parameters:
ECG
Heart Rate
Pulse Oximetry
Non-Invasive Blood Pressure
Invasive Blood Pressure
End-Tidal Carbon Dioxide / Nitrous Oxide
Respiration effort
Indications for use read by OCR from a scanned FDA 510(k) statement, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K971840 · printed Nov 6, 2026
Cite this page
510(k) Report. “K971840: Omni-Trak Model 3150 Series Patient Monitoring System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K971840
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Page last updated Nov 3, 2026