510(k) Report

510(k) · Cleared

Cleared

Sigms B-Hydroxybutarate Procedure NO. 310-UV

K850368510(k) TraditionalCleared Aug 30, 1985211-day reviewClass I21 CFR 862.1435

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

Sigma Chemical Co. · JIN Nitroprusside, Ketones (Urinary, Non-Quant.)

Cleared on Aug 30, 1985 after a 211-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 1 of the 42 devices in its family, counting itself, has a Class I recall. 41 later devices descend from it.

Decided
Aug 30, 1985
Review
211 days
Class
Class I
Product code
JIN
Recalls
None
Predicates
0

41 later devices descend from it, 1 citing it directly. 1 of the 42 devices in this family, counting this one, has a Class I recall.

Descendants, by year cleared 1999: 1 descendant cleared2002: 1 descendant cleared2008: 7 descendants cleared2006: 4 descendants cleared2004: 2 descendants cleared2005: 1 descendant cleared2010: 3 descendants cleared, 1 with a Class I recall12007: 4 descendants cleared2009: 2 descendants cleared2013: 5 descendants cleared2018: 3 descendants cleared2016: 3 descendants cleared2022: 2 descendants cleared2021: 1 descendant cleared2020: 1 descendant cleared2011: 1 descendant cleared1990200020102020
  1. This deviceK850368 Sigms B-Hydroxybutarate Procedure NO. 310-UVSigma Chemical Co. · 1985
  2. Descendant · cites it directly · 40 of its ownK983504 Precision Xtra Advanced Diabetes Management System, Precision Blood…Medisense, Inc. · 1999 · Recalled
  3. Descendant · 2 generations on · 19 of its ownK052980 Liberty Glucose Control, Model 2120031Liberty Healthcare Group, Inc. · 2005
  4. Descendant · 2 generations on · 16 of its ownK040814 Modification to Precision Xtra Advanced Diabetes Management SystemAbbott Laboratories · 2004 · Recalled
  5. Descendant · 3 generations on · 10 of its ownK091547 Nova Max Plus Blood Glucose and B-Ketone Monitor System, Nova Max…Nova Biomedical Corp. · 2010 · Recalled (Class I)
  6. Descendant · 3 generations on · 8 of its ownK060706 Liberty Normal Glucose Control SolutionLiberty Healthcare Group, Inc. · 2006

Showing 5 of 41 descendants. See all descendants

Descendants cleared per year

1999: 12002: 12004: 22005: 12006: 42007: 42008: 72009: 22010: 32011: 12013: 52016: 32018: 32020: 12021: 12022: 2
1999high 7 (2008) · low 0 (2000)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 41 · See all
  • K983504Precision Xtra Advanced Diabetes Management System, Precision Blood Glucose Test Strips…Medisense, Inc. · 1999 · cites it directly40descendants
  • K052980Liberty Glucose Control, Model 2120031Liberty Healthcare Group, Inc. · 2005 · 2 generations on19descendants
  • K040814Modification to Precision Xtra Advanced Diabetes Management SystemAbbott Laboratories · 2004 · 2 generations on16descendants
  • K091547Nova Max Plus Blood Glucose and B-Ketone Monitor System, Nova Max Plus B-Ketone Control…Nova Biomedical Corp. · 2010 · 3 generations on10descendants
  • K060706Liberty Normal Glucose Control SolutionLiberty Healthcare Group, Inc. · 2006 · 3 generations on8descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K850368Sigms B-Hydroxybutarate Procedure NO. 310-UVSigma Chemical Co.1985—
+1K983504Precision Xtra Advanced Diabetes Management System, Precision Blood Glucose…Medisense, Inc.19991
+2K052980Liberty Glucose Control, Model 2120031Liberty Healthcare Group, Inc.2005—
+2K040814Modification to Precision Xtra Advanced Diabetes Management SystemAbbott Laboratories20043
+3K091547Nova Max Plus Blood Glucose and B-Ketone Monitor System, Nova Max Plus…Nova Biomedical Corp.2010Class I
+3K060706Liberty Normal Glucose Control SolutionLiberty Healthcare Group, Inc.2006—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
199910
200210
200420
200510
200640
200740
200870
200920
201031
201110
201350
201630
201830
202010
202110
202220
FIG. 1 — Lineage of K850368, 1985–2022Source: 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.

1 device in this family has 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 JIN device

  1. #1 K192957 VivaChek Blood Glucose and B-Ketone Monitoring…score 1.6 · 8 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? (41)

See all 41

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

NumberDeviceApplicantDecidedDescendants
K983504Precision Xtra Advanced Diabetes Management System, Precision Blood Glucose Test Strips…Medisense, Inc.199940

Has anything in its family been recalled? (1 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.

  • K091547Nova Max Plus Blood Glucose and B-Ketone Monitor System, Nova Max Plus B-Ketone Control Solutions, Nova Max…Nova Biomedical Corp. · 2010 · 3 generations on · ◆ in the 2010 descendants bar of FIG. 110 Class I recalls

What does this lineage say?

  • Of its descendants, K983504 (Medisense, Inc., 1999) has gone furthest, with 40 descendants of its own.

How does its category compare?

All JIN devices

JIN Nitroprusside, Ketones (Urinary, Non-Quant.): FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JIN

2in 2020

2017: 12018: 32020: 2
2007high 3 (2018) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JIN

192in 2018

2018: 192 days median
2007high 192 (2018)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · JIN

3in 2023

2022: 12023: 32026 (partial year): 1
2007high 3 (2023) · low 0 (2007)2026

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

Adverse event reports per year · JIN

4in 2025

2011: 12015: 12018: 52019: 522020: 372021: 432022: 142023: 172024: 72025: 4
2007high 52 (2019) · low 0 (2007)2025

MAUDE reports naming product code JIN, 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—00
20090—00
20100—00
20110—01
20120—00
20130—00
20140—00
20150—01
20160—00
20171—00
2018319205
20190—052
20202—037
20210—043
20220—114
20230—317
20240—07
20250—04
20260—1—
Cite this page

510(k) Report. “K850368: Sigms B-Hydroxybutarate Procedure NO. 310-UV.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K850368

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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