510(k) Report

510(k) · Cleared

Recalled · 2004

Avl 9181 Electrolyte Analyzer

K972673510(k) TraditionalCleared Aug 20, 199735-day reviewClass II21 CFR 862.1145Recalls 7

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

Avl Scientific Corp. · JFP Electrode, Ion Specific, Calcium

Cleared on Aug 20, 1997 as substantially equivalent to K961458 (Avl Scientific Corp., 1996) after a 35-day review. Its family tree reaches back 2 generations to 1986. 38 later devices descend from it. It has been recalled 7 times.

Decided
Aug 20, 1997
Review
35 days
Class
Class II
Product code
JFP
Recalls
7
Predicates
1

Its longest line of descent runs back 2 generations to K861087 (1986). 4 ancestors in all. 38 later devices descend from it, 7 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 1987: 1 other ancestor1986: 1 other ancestor2005: 5 descendants cleared1998: 3 descendants cleared2000: 1 descendant cleared1999: 1 descendant cleared2015: 3 descendants cleared2008: 2 descendants cleared2006: 1 descendant cleared2004: 1 descendant cleared2013: 4 descendants cleared2010: 1 descendant cleared2020: 1 descendant cleared2011: 2 descendants cleared2021: 2 descendants cleared2014: 1 descendant cleared2017: 1 descendant cleared2012: 3 descendants cleared2025: 1 descendant cleared2016: 2 descendants cleared2024: 1 descendant cleared2026: 1 descendant cleared2023: 1 descendant clearedReference device: K943702 · Avl 988-4 Electrolyte Analyzer · Avl Scientific Corp. · 1994K861087 · Avl Model 983 Electrolyte Analyzer · Avl Scientific Corp. · 1986K961458 · Avl 9180 Electrolyte Analyzer · Avl Scientific Corp. · 1996 · recalled1990200020102020
Other ancestors, by generationDescendants, by generation 2 generations back: 2 other ancestors 1 generation forward: 7 descendants2 generations forward: 6 descendants3 generations forward: 6 descendants4 generations forward: 9 descendants5 generations forward: 5 descendants6 generations forward: 5 descendants K961458 · Avl 9180 Electrolyte Analyzer · Avl Scientific Corp. · 1996 · recalledK861087 · Avl Model 983 Electrolyte Analyzer · Avl Scientific Corp. · 19860+5
  1. Root · 2 generations backK861087 Avl Model 983 Electrolyte AnalyzerAvl Scientific Corp. · 1986
  2. 1 generation backK961458 Avl 9180 Electrolyte AnalyzerAvl Scientific Corp. · 1996 · Recalled
  3. This deviceK972673 Avl 9181 Electrolyte AnalyzerAvl Scientific Corp. · 1997
  4. Descendant · cites it directly · 31 of its ownK992859 ABL700 Series Analyzer with Autocheck ModuleRadiometer America, Inc. · 2000 · Recalled
  5. Descendant · 2 generations on · 29 of its ownK041874 ABL800 FlexRadiometer Medical Aps · 2004 · Recalled
  6. Descendant · 3 generations on · 18 of its ownK050869 Modification to ABL800 FlexRadiometer Medical Aps · 2005 · Recalled
  7. Descendant · 3 generations on · 12 of its ownK092686 ABL90 Flex SeriesRadiometer Medical Aps · 2010 · Recalled
  8. Descendant · 4 generations on · 6 of its ownK120197 ABL90 FlexRadiometer Medical Aps · 2012 · Recalled

Showing 5 of 38 descendants. See all descendants

Descendants cleared per year

1998: 31999: 12000: 12004: 12005: 52006: 12008: 22010: 12011: 22012: 32013: 42014: 12015: 32016: 22017: 12020: 12021: 22023: 12024: 12025: 12026: 1
1998high 5 (2005) · low 0 (2001)2026

Most influential descendants

Showing 5 of 38 · See all
  • K992859ABL700 Series Analyzer with Autocheck ModuleRadiometer America, Inc. · 2000 · cites it directly31descendants
  • K041874ABL800 FlexRadiometer Medical Aps · 2004 · 2 generations on29descendants
  • K050869Modification to ABL800 FlexRadiometer Medical Aps · 2005 · 3 generations on18descendants
  • K092686ABL90 Flex SeriesRadiometer Medical Aps · 2010 · 3 generations on12descendants
  • K120197ABL90 FlexRadiometer Medical Aps · 2012 · 4 generations on6descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2K861087Avl Model 983 Electrolyte AnalyzerAvl Scientific Corp.1986—
−1K961458Avl 9180 Electrolyte AnalyzerAvl Scientific Corp.19961
0 (this device)K972673Avl 9181 Electrolyte AnalyzerAvl Scientific Corp.1997—
+1K992859ABL700 Series Analyzer with Autocheck ModuleRadiometer America, Inc.20004
+2K041874ABL800 FlexRadiometer Medical Aps200422
+3K050869Modification to ABL800 FlexRadiometer Medical Aps20051
+3K092686ABL90 Flex SeriesRadiometer Medical Aps201010
+4K120197ABL90 FlexRadiometer Medical Aps20123

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198610
198710

Descendants by year cleared

Year clearedDevicesWith a Class I recall
199830
199910
200010
200410
200550
200610
200820
201010
201120
201230
201340
201410
201530
201620
201710
202010
202120
202310
202410
202510
202610
FIG. 1 — Lineage of K972673, 1986–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

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.

Planning a device in JFP? 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 JFP device

  1. #1 K230300 i-STAT CG8+ cartridge with the i-STAT 1 Systemscore 6.9 · 3 generations · no Class I recall
  2. #2 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (3)

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
*K961458Avl 9180 Electrolyte Analyzer
Summary page 1
…M I CHEMISTRY ELECTRODE, ION-SPECIFIC, SODIUM 75JGS I CHEMISTRY (3) Substantial Equivalence The AVL 9181 is an improved design of our existing 9180 Electrolyte Analyzer [K961458] with the addition of an Autosampler to allow automatic sampling of up to 18 sample cups. The 9181 is exactly equivalent to the A…
Avl Scientific Corp.19961
*—I.L. Model 943 Flame Emission Photometer
Named without a submission number
—
*—Labconco Digital Chloridometer
Named without a submission number
—
†K943702Avl 988-4 Electrolyte AnalyzerAvl Scientific Corp.1994—

Also cleared against K961458: 5 other devices →

What descends from it? (38)

See all 38

7 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K992859ABL700 Series Analyzer with Autocheck ModuleRadiometer America, Inc.200031
K974784Avl Opti Critical Care AnalyzerAvl Scientific Corp.19985
K043218ABL800 Flex with Flexq Module, Model ABL8XXRadiometer Medical Aps20054
K984299Avl Opti Critical Care AnalyzerAvl Scientific Corp.19984
K993837Avl Opti Critical Care AnalyzerAvl Scientific Corp.19992
K052027Opti Lion Electrolyte Analyzer, Model GD7200Osmetech, Inc.20050
K974779Abbott Alcyon (TM) 300 (Without Ise Module) and 300I (with Ise Module) AnalyzerAbbott Laboratories19980

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

Recalls of this device

DateClassRecallRoot causeReason
Dec 21, 2004Not classifiedZ-0608-05OtherA defective seam in the two chamber pouch may result in the mixing of reagents, which would either result in an inability to calibrate the analyzer or would bias patient results.
Dec 21, 2004Not classifiedZ-0610-05OtherA defective seam in the two chamber pouch may result in the mixing of reagents, which would either result in an inability to calibrate the analyzer or would bias patient results.
Dec 21, 2004Not classifiedZ-0605-05OtherA defective seam in the two chamber pouch may result in the mixing of reagents, which would either result in an inability to calibrate the analyzer or would bias patient results.
Dec 21, 2004Not classifiedZ-0606-05OtherA defective seam in the two chamber pouch may result in the mixing of reagents, which would either result in an inability to calibrate the analyzer or would bias patient results.
Dec 21, 2004Not classifiedZ-0607-05OtherA defective seam in the two chamber pouch may result in the mixing of reagents, which would either result in an inability to calibrate the analyzer or would bias patient results.
Dec 21, 2004Not classifiedZ-0611-05OtherA defective seam in the two chamber pouch may result in the mixing of reagents, which would either result in an inability to calibrate the analyzer or would bias patient results.
Dec 21, 2004Not classifiedZ-0609-05OtherA defective seam in the two chamber pouch may result in the mixing of reagents, which would either result in an inability to calibrate the analyzer or would bias patient results.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 11 years and passes through 1 company; a new generation was cleared every 10.2 years on median.
  • 1 of the 4 ancestors has a recall of any class.
  • Of its descendants, K992859 (Radiometer America, Inc., 2000) has gone furthest, with 31 descendants of its own.
  • 5 other devices also cite its predicate K961458.

How does its category compare?

All JFP devices

JFP Electrode, Ion Specific, Calcium: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JFP

1in 2023

2016: 12019: 12020: 12023: 1
2007high 1 (2016) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JFP

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

Recalls per year · JFP

1in 2011

2008: 12011: 1
2007high 1 (2008) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · JFP

40in 2025

2008: 52009: 52010: 22011: 82013: 12014: 12015: 32017: 22018: 52019: 62020: 62022: 62023: 22024: 82025: 40
2007high 40 (2025) · low 0 (2007)2025

MAUDE reports naming product code JFP, 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
20070—00
20080—15
20090—05
20100—02
20110—18
20120—00
20130—01
20140—01
20150—03
20161—00
20170—02
20180—05
20191—06
20201—06
20210—00
20220—06
20231—02
20240—08
20250—040
20260—0—

What is it indicated for?

The AVL 9181 Electrolyte Analyzer is intended to be used for the measurement of

sodium, potassium, chloride, ionized calcium and lithium in whole blood, serum or

plasma, urine, dialysate solutions, or QC materials as appropriate by minimally

trained personnel qualified to perform and to report these values in a clinical

laboratory setting.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K972673: Avl 9181 Electrolyte Analyzer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K972673

Report an extraction error

Tell us what is wrong; we check it against the FDA summary.

Are you the manufacturer?

Send a correction or an update to this page, for example a newer model or a public statement about a recall.

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