510(k) Report

510(k) · Cleared

Recalled · Class II · 2023

Multilab 2000

K904392510(k) TraditionalCleared Apr 29, 1991217-day reviewClass II21 CFR 892.1540Recalls 4

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

Unetixs, Inc. · JAF Monitor, Ultrasonic, Nonfetal

Cleared on Apr 29, 1991 after a 217-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 6 later devices descend from it. It has been recalled 4 times.

Decided
Apr 29, 1991
Review
217 days
Class
Class II
Product code
JAF
Recalls
4
Predicates
0

6 later devices descend from it, 1 citing it directly.

Descendants, by year cleared 2011: 1 descendant cleared2024: 2 descendants cleared2013: 1 descendant cleared2014: 1 descendant cleared2016: 1 descendant cleared1990200020102020
  1. This deviceK904392 Multilab 2000Unetixs, Inc. · 1991
  2. Descendant · cites it directly · 5 of its ownK111416 FalconViasonix, Ltd. · 2011
  3. Descendant · 2 generations on · 1 of its ownK131623 Smartdop XTKoven Technology, Inc. · 2014
  4. Descendant · 2 generations on · 0 of its ownK242662 Falcon/Xpress (Falcon/Xpress)Viasonix, Ltd. · 2024
  5. Descendant · 2 generations on · 0 of its ownK233976 VasoGuard (V10, V8, V6, V4, V2)Corvascular Diagnostics, LLC · 2024
  6. Descendant · 3 generations on · 0 of its ownK153762 Smartdop XT6Koven Technology, Inc. · 2016

Showing 5 of 6 descendants. See all descendants

Descendants cleared per year

2011: 12013: 12014: 12016: 12024: 2
2011high 2 (2024) · low 0 (2012)2026

Most influential descendants

Showing 5 of 6 · See all
  • K111416FalconViasonix, Ltd. · 2011 · cites it directly5descendants
  • K131623Smartdop XTKoven Technology, Inc. · 2014 · 2 generations on1descendant
  • K242662Falcon/Xpress (Falcon/Xpress)Viasonix, Ltd. · 2024 · 2 generations on0descendants
  • K233976VasoGuard (V10, V8, V6, V4, V2)Corvascular Diagnostics, LLC · 2024 · 2 generations on0descendants
  • K153762Smartdop XT6Koven Technology, Inc. · 2016 · 3 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K904392Multilab 2000Unetixs, Inc.1991—
+1K111416FalconViasonix, Ltd.2011—
+2K131623Smartdop XTKoven Technology, Inc.2014—
+2K242662Falcon/Xpress (Falcon/Xpress)Viasonix, Ltd.2024—
+2K233976VasoGuard (V10, V8, V6, V4, V2)Corvascular Diagnostics, LLC2024—
+3K153762Smartdop XT6Koven Technology, Inc.2016—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201110
201310
201410
201610
202420
FIG. 1 — Lineage of K904392, 1991–2024Source: 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), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in JAF? 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 JAF device

  1. #1 K242487 Laminar P1 (LDH-HW-001)score 10.3 · 7 generations · no Class I recall
Get a 510(k) Report

What was it cleared against?

FDA has not posted a summary or statement for it, so its predicates are not known.

What descends from it? (6)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K111416FalconViasonix, Ltd.20115

Has anything in its family been recalled? (0 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Feb 10, 2023Class IIZ-1196-2023Use errorThe current luer fittings and adaptors allow for the possibility of the air line to be misconnected to an intravenous line, which may cause an air embolism.
Feb 10, 2023Class IIZ-1194-2023Use errorThe current luer fittings and adaptors allow for the possibility of the air line to be misconnected to an intravenous line, which may cause an air embolism.
Feb 10, 2023Class IIZ-1193-2023Use errorThe current luer fittings and adaptors allow for the possibility of the air line to be misconnected to an intravenous line, which may cause an air embolism.
Feb 10, 2023Class IIZ-1195-2023Use errorThe current luer fittings and adaptors allow for the possibility of the air line to be misconnected to an intravenous line, which may cause an air embolism.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • Of its descendants, K111416 (Viasonix, Ltd., 2011) has gone furthest, with 5 descendants of its own.

How does its category compare?

All JAF devices

JAF Monitor, Ultrasonic, Nonfetal: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JAF

1in 2024

2007: 12008: 12009: 22011: 12015: 12024: 1
2007high 2 (2009) · low 0 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JAF

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

Recalls per year · JAF

No recall names JAF since 2007.

Adverse event reports per year · JAF

1in 2023

2010: 12012: 12013: 22014: 82015: 72016: 52017: 442018: 12019: 22020: 52021: 12022: 22023: 1
2007high 44 (2017) · low 0 (2007)2025

MAUDE reports naming product code JAF, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20071—00
20081—00
20092—00
20100—01
20111—00
20120—01
20130—02
20140—08
20151—07
20160—05
20170—044
20180—01
20190—02
20200—05
20210—01
20220—02
20230—01
20241—00
20250—00
20260—0—
Cite this page

510(k) Report. “K904392: Multilab 2000.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K904392

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Record history
  • FDA decision record loaded May 2, 2026
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026