510(k) Report

510(k) · Cleared

Cleared

LuMon (TM) System

K243765510(k) TraditionalCleared Aug 7, 2025244-day reviewClass II21 CFR 868.1505

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Sentec AG · QEB Ventilatory Electrical Impedance Tomograph

Cleared on Aug 7, 2025 as substantially equivalent to K222897 (Timpel S.A., 2023) after a 244-day review. Its family tree reaches back 10 generations to 1991. 4 of the 45 devices in its family, counting itself, have a Class I recall.

Decided
Aug 7, 2025
Review
244 days
Class
Class II
Product code
QEB
Recalls
None
Predicates
1

Its longest line of descent runs back 10 generations to K902859 (1991). 44 ancestors in all, the oldest K900696 (1990). No later device cites it as a predicate yet. 4 of the 45 devices in this family, counting this one, have a Class I recall.

  1. Root · 10 generations backK902859 Servo Ventilator 300Siemens Life Support Systems · 1991 · Recalled
  2. 6 generations between
  3. 3 generations backK053388 Model 840 Ventilator with Proportional Assist Ventilation Plus…Puritan Bennett Corp. · 2006 · Recalled (Class I)
  4. 2 generations backK103578 Philips NM3 Respiratory Monitor with VentassistRespironics Novametrix, LLC · 2011
  5. 1 generation backK222897 Enlight 2100Timpel S.A. · 2023
  6. This deviceK243765 LuMon (TM) SystemSentec AG · 2025
Show all 10 generations
  1. Root · 10 generations backK902859 Servo Ventilator 300Siemens Life Support Systems · 1991 · Recalled
  2. 9 generations backK961687 EVITA 4Drager, Inc. · 1996
  3. 8 generations backK970460 Nellcor Puritan Bennett, 840 Ventilator System (Model 840)Puritan Bennett Corp. · 1998 · Recalled (Class I)
  4. 7 generations backK984535 Puritan-Bennett 840 Ventilatory System with Bilevel OptionPuritan Bennett Corp. · 1998 · Recalled (Class I)
  5. 6 generations backK022679 RaphaelHamilton Medical AG · 2003 · Recalled
  6. 5 generations backK040574 Galileo GoldHamilton Medical, Inc. · 2004
  7. 4 generations backK051263 Evitaxl with Option SmartcareDrager Medical AG & Co. Kgaa · 2005 · Recalled
  8. 3 generations backK053388 Model 840 Ventilator with Proportional Assist Ventilation Plus…Puritan Bennett Corp. · 2006 · Recalled (Class I)
  9. 2 generations backK103578 Philips NM3 Respiratory Monitor with VentassistRespironics Novametrix, LLC · 2011
  10. 1 generation backK222897 Enlight 2100Timpel S.A. · 2023
  11. This deviceK243765 LuMon (TM) SystemSentec AG · 2025

Class I recalls in this family

View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−10K902859Servo Ventilator 300Siemens Life Support Systems19913
−9K961687EVITA 4Drager, Inc.1996—
−8K970460Nellcor Puritan Bennett, 840 Ventilator System (Model 840)Puritan Bennett Corp.1998Class I
−7K984535Puritan-Bennett 840 Ventilatory System with Bilevel OptionPuritan Bennett Corp.1998Class I
−6K022679RaphaelHamilton Medical AG20033
−5K040574Galileo GoldHamilton Medical, Inc.2004—
−4K051263Evitaxl with Option SmartcareDrager Medical AG & Co. Kgaa20051
−3K053388Model 840 Ventilator with Proportional Assist Ventilation Plus Software OptionPuritan Bennett Corp.2006Class I
−2K103578Philips NM3 Respiratory Monitor with VentassistRespironics Novametrix, LLC2011—
−1K222897Enlight 2100Timpel S.A.2023—
0 (this device)K243765LuMon (TM) SystemSentec AG2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199010
199120
199210
199410
199510
199620
199740
199850
199930
200041
200140
200220
200310
200910
201810
202210
FIG. 1 — Lineage of K243765, 1991–2025Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

4 devices in this family have a Class I recall. 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 QEB device

  1. #1 K222897 Enlight 2100score 13.4 · 9 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K222897Enlight 2100
Our reading of the summary gave K222987, FDA’s number for Akunah REFLECT (Akunah Pty, Ltd.). Corrected to the number with two digits swapped whose FDA name carries the summary’s words for the device, “Timpel Enlight 2100”.
Timpel S.A.2023—
†K113798Infinity Acute Care System, Infinity Mcable- Masimo Rainbow SetDraeger Medical Systems, Inc.20128

Also cleared against K222897: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (4 Class I)

No FDA recall names this device.

Relatives with a Class I recall

Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.

  • K053388Model 840 Ventilator with Proportional Assist Ventilation Plus Software OptionPuritan Bennett Corp. · 2006 · 3 generations back · ◆ on the line of descent in FIG. 11 Class I recall
  • K001646Puritan-Bennett 840 Ventilator System with Neomode OptionPuritan Bennett Corp. · 2000 · 5 generations back · ◆ in the 2000 ancestors bar of FIG. 11 Class I recall
  • K984535Puritan-Bennett 840 Ventilatory System with Bilevel OptionPuritan Bennett Corp. · 1998 · 5 generations back · ◆ on the line of descent in FIG. 11 Class I recall
  • K970460Nellcor Puritan Bennett, 840 Ventilator System (Model 840)Puritan Bennett Corp. · 1998 · 6 generations back · ◆ on the line of descent in FIG. 11 Class I recall

What does this lineage say?

  • The line of descent spans 34 years and passes through 9 companies; a new generation was cleared every 2.4 years on median.
  • 17 of the 44 ancestors have a recall of any class; 4 have a Class I recall.
  • 1 other device also cites its predicate K222897.

How does its category compare?

All QEB devices

QEB Ventilatory Electrical Impedance Tomograph: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.

FDA decisions per year · QEB

2in 2025

2018: 12022: 12023: 22025: 2
2007high 2 (2023) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QEB

Too few QEB 510(k)s in any year since 2007 to give a median.

Recalls per year · QEB

No recall names QEB since 2007.

Adverse event reports per year · QEB

No MAUDE report names QEB since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20181—00
20190—00
20200—00
20210—00
20221—00
20232—00
20240—00
20252—00
20260—0—

What is it indicated for?

The LuMon™ System is a noninvasive, non-radiation device that provides information on regional impedance variation within a cross-section of a patient's thorax. Graphical and numerical information is presented to the user as an adjunctive tool to other clinical information to support the user to assess a patient’s respiratory condition. The LuMon™ System is indicated for neonatal and infant patients with chest circumferences between 16.5 - 50 cm and…

Read the full statement (137 words)

The LuMon™ System is a noninvasive, non-radiation device that provides information on regional impedance variation

within a cross-section of a patient's thorax. Graphical and numerical information is presented to the user as an adjunctive

tool to other clinical information to support the user to assess a patient’s respiratory condition.

The LuMon™ System is indicated for neonatal and infant patients with chest circumferences between 16.5 - 50 cm and

adolescent through adult patients with chest circumferences between 76 - 128 cm who are breathing spontaneously or

require mechanical ventilation in professional healthcare facilities.

Impedance-based respiratory rate monitoring is indicated for adults 22 years and older whose chest circumference is

above 76 cm only.

The LuMon™ System also displays selected physiological and respiratory parameters from supported bedside devices.

The LuMon™ System does not measure regional ventilation of the lungs.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K243765: LuMon (TM) System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K243765

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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