510(k) Report

510(k) · Cleared

Cleared

Stak-Chex

K911582510(k) TraditionalCleared May 28, 199150-day reviewClass II21 CFR 864.8625

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

Streck Laboratories, Inc. · JCN Control, Cell Counter, Normal And Abnormal

Cleared on May 28, 1991 after a 50-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 3 later devices descend from it.

Decided
May 28, 1991
Review
50 days
Class
Class II
Product code
JCN
Recalls
None
Predicates
0

3 later devices descend from it, 2 citing it directly.

Descendants, by year cleared 2002: 1 descendant cleared1999: 1 descendant cleared2009: 1 descendant cleared1990200020102020
  1. This deviceK911582 Stak-ChexStreck Laboratories, Inc. · 1991
  2. Descendant · cites it directly · 1 of its ownK992887 Stak-Chex Plus ReticsStreck Laboratories, Inc. · 1999
  3. Descendant · 2 generations on · 0 of its ownK090137 Stak-Chex Plus ReticsStreck · 2009
  4. Descendant · cites it directly · 0 of its ownK021922 Modification to Para 5XStreck Laboratories, Inc. · 2002

Most influential descendants

Showing 3 of 3 · See all
  • K992887Stak-Chex Plus ReticsStreck Laboratories, Inc. · 1999 · cites it directly1descendant
  • K090137Stak-Chex Plus ReticsStreck · 2009 · 2 generations on0descendants
  • K021922Modification to Para 5XStreck Laboratories, Inc. · 2002 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K911582Stak-ChexStreck Laboratories, Inc.1991—
+1K992887Stak-Chex Plus ReticsStreck Laboratories, Inc.1999—
+2K090137Stak-Chex Plus ReticsStreck2009—
+1K021922Modification to Para 5XStreck Laboratories, Inc.2002—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
199910
200210
200910
FIG. 1 — Lineage of K911582, 1991–2009Source: 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 JCN? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin the report
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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? (3)

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

NumberDeviceApplicantDecidedDescendants
K992887Stak-Chex Plus ReticsStreck Laboratories, Inc.19991
K021922Modification to Para 5XStreck Laboratories, Inc.20020

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, K992887 (Streck Laboratories, Inc., 1999) has gone furthest, with 1 descendant of its own.

How does its category compare?

All JCN devices

JCN Control, Cell Counter, Normal And Abnormal: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JCN

FDA has decided no JCN device since 2007.

Median 510(k) review, days · JCN

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

Recalls per year · JCN

No recall names JCN since 2007.

Adverse event reports per year · JCN

2in 2007

2007: 2
2007high 2 (2007) · low 0 (2008)2025

MAUDE reports naming product code JCN, 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—02
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20190—00
20200—00
20210—00
20220—00
20230—00
20240—00
20250—00
20260—0—
Cite this page

510(k) Report. “K911582: Stak-Chex.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K911582

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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