510(k) · Cleared
ClearedIQ System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Renaissance Technology, Inc. · DSB Plethysmograph, Impedance
Cleared on Feb 8, 1999 after a 279-day review. FDA’s file for it is a 510(k) statement, which names no predicate. 77 later devices descend from it.
- Decided
- Feb 8, 1999
- Review
- 279 days
- Class
- Class II
- Product code
- DSB
- Recalls
- None
- Predicates
- 0
77 later devices descend from it, 1 citing it directly.
- This deviceK981720 IQ SystemRenaissance Technology, Inc. · 1999
- Descendant · cites it directly · 76 of its ownK042113 Zoe Fluid Status MonitorNoninvasive Medical Technologies, LLC · 2004
- Descendant · 2 generations on · 57 of its ownK083287 Avivo Mobile Patient Management SystemCorventis, Inc. · 2009
- Descendant · 3 generations on · 40 of its ownK090696 Nuvant Cardiac Event Monitoring System; Nuvant Mobile Cardiac…Corventis, Inc. · 2009
- Descendant · 3 generations on · 38 of its ownK091971 Avivo Mobile Patient Management System, Nuvant Mobile Cardiac…Corventis, Inc. · 2009
- Descendant · 4 generations on · 30 of its ownK111917 Nuvant, Mobile Cardiac TelemetryCorventis, Inc. · 2011
Showing 5 of 77 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 77 · See all- K042113Zoe Fluid Status MonitorNoninvasive Medical Technologies, LLC · 2004 · cites it directly76descendants
- K083287Avivo Mobile Patient Management SystemCorventis, Inc. · 2009 · 2 generations on57descendants
- K090696Nuvant Cardiac Event Monitoring System; Nuvant Mobile Cardiac Telemetry SystemCorventis, Inc. · 2009 · 3 generations on40descendants
- K091971Avivo Mobile Patient Management System, Nuvant Mobile Cardiac Telemetry (MCT) SystemCorventis, Inc. · 2009 · 3 generations on38descendants
- K111917Nuvant, Mobile Cardiac TelemetryCorventis, Inc. · 2011 · 4 generations on30descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K981720 | IQ System | Renaissance Technology, Inc. | 1999 | — |
| +1 | K042113 | Zoe Fluid Status Monitor | Noninvasive Medical Technologies, LLC | 2004 | — |
| +2 | K083287 | Avivo Mobile Patient Management System | Corventis, Inc. | 2009 | — |
| +3 | K090696 | Nuvant Cardiac Event Monitoring System; Nuvant Mobile Cardiac Telemetry System | Corventis, Inc. | 2009 | — |
| +3 | K091971 | Avivo Mobile Patient Management System, Nuvant Mobile Cardiac Telemetry (MCT)… | Corventis, Inc. | 2009 | — |
| +4 | K111917 | Nuvant, Mobile Cardiac Telemetry | Corventis, Inc. | 2011 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2004 | 1 | 0 |
| 2009 | 3 | 0 |
| 2010 | 2 | 0 |
| 2011 | 2 | 0 |
| 2012 | 4 | 0 |
| 2013 | 1 | 0 |
| 2014 | 5 | 0 |
| 2015 | 5 | 0 |
| 2016 | 3 | 0 |
| 2017 | 4 | 0 |
| 2018 | 3 | 0 |
| 2019 | 5 | 0 |
| 2020 | 4 | 0 |
| 2021 | 3 | 0 |
| 2022 | 4 | 0 |
| 2023 | 7 | 0 |
| 2024 | 5 | 0 |
| 2025 | 10 | 0 |
| 2026 | 6 | 0 |
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 DSB? 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 DSB device
- #1 K232089 SOZO Proscore 14.6 · 9 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? (77)
See all 771 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K042113 | Zoe Fluid Status Monitor | 2004 | 76 |
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.
What does this lineage say?
- Of its descendants, K042113 (Noninvasive Medical Technologies, LLC, 2004) has gone furthest, with 76 descendants of its own.
How does its category compare?
All DSB devicesDSB Plethysmograph, Impedance: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · DSB
3in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DSB
266in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DSB
1in 2015
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DSB
2in 2025
MAUDE reports naming product code DSB, 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 | 2 | — | 0 | 0 |
| 2008 | 6 | 90 | 0 | 0 |
| 2009 | 2 | — | 0 | 0 |
| 2010 | 1 | — | 0 | 0 |
| 2011 | 2 | — | 0 | 0 |
| 2012 | 1 | — | 0 | 0 |
| 2013 | 2 | — | 0 | 0 |
| 2014 | 2 | — | 0 | 0 |
| 2015 | 2 | — | 1 | 0 |
| 2016 | 0 | — | 0 | 1 |
| 2017 | 2 | — | 0 | 0 |
| 2018 | 1 | — | 0 | 0 |
| 2019 | 1 | — | 0 | 0 |
| 2020 | 2 | — | 0 | 0 |
| 2021 | 1 | — | 0 | 0 |
| 2022 | 1 | — | 0 | 0 |
| 2023 | 2 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 3 | 266 | 0 | 2 |
| 2026 | 1 | — | 0 | — |
What is it indicated for?
As with predicate devices indicated in this resubmittal (cardiac output monitors employing impedance plethysmography {DXG and DSB}), the IQ™ System is intended for use by qualified health care practitioners, under direction of a physician, for the non-invasive monitoring and management of cardiac function in a variety of medically accepted clinical applications.
The IQ™ System (as well as predicate devices) is especially useful in cases where the invasive monitoring of cardiac output (e.g.: thermodilution) may compromise a given patient, is impractical, or otherwise contraindicated.
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/K981720 · printed Nov 6, 2026
Cite this page
510(k) Report. “K981720: IQ System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K981720
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026