510(k) Report

510(k) · Cleared

Cleared

Kerato Analyzer (Eka)

K040373510(k) TraditionalCleared Mar 19, 200431-day reviewClass II21 CFR 886.1850

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

Konan Medical, Inc. · NQE Microscope, Specular

Cleared on Mar 19, 2004 as substantially equivalent to K950091 (Konan Medical, Inc., 1995) and 1 other predicate after a 31-day review. Its family tree reaches back 1 generation to 1995.

Decided
Mar 19, 2004
Review
31 days
Class
Class II
Product code
NQE
Recalls
None
Predicates
2

Its longest line of descent runs back 1 generation to K950091 (1995). 2 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by year cleared 2000: 1 other ancestorK950091 · Konan Noncon Robo Specular Microscope, Models SP 6000 and SP 8000 · Konan Medical, Inc. · 1995199619982000200220042006
Other ancestors, by generation 1 generation back: 1 other ancestor K950091 · Konan Noncon Robo Specular Microscope, Models SP 6000 and SP 8000 · Konan Medical, Inc. · 19950
  1. Root · 1 generation backK950091 Konan Noncon Robo Specular Microscope, Models SP 6000 and SP 8000Konan Medical, Inc. · 1995
  2. This deviceK040373 Kerato Analyzer (Eka)Konan Medical, Inc. · 2004
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K950091Konan Noncon Robo Specular Microscope, Models SP 6000 and SP 8000Konan Medical, Inc.1995—
0 (this device)K040373Kerato Analyzer (Eka)Konan Medical, Inc.2004—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200010
FIG. 1 — Lineage of K040373, 1995–2004Source: 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.

Planning a device in NQE? 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 NQE device

  1. #1 K191558 Konan Specular Microscope XVIIscore -0.0 · 4 generations · no Class I recall
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What was it cleared against? (2)

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
*K950091Konan Noncon Robo Specular Microscope, Models SP 6000 and SP 8000
Summary page 1
…Name: Specular Microscope for Eye Banks. Classification Name: Camera, Ophthalmic, AC-powered (3) Equivalent legally-marketed devices: Konan Noncon Robo, K950091 Hai Labs EB2000 xyz, K994340 (4) Description The Konan Kerato Analyzer ("EKA") is a specular microscope used to…
Konan Medical, Inc.1995—
*K994340Clinical Specular Microscope, Model Hai CL-1000XYZ
Summary page 1
…ks. Classification Name: Camera, Ophthalmic, AC-powered (3) Equivalent legally-marketed devices: Konan Noncon Robo, K950091 Hai Labs EB2000 xyz, K994340 (4) Description The Konan Kerato Analyzer ("EKA") is a specular microscope used to make cell counts of preserved cornea…
Hai Laboratories, Inc.2000—

Also cleared against K950091: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

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?

  • None of the 2 ancestors has a recall.
  • 1 other device also cites its predicate K950091.

How does its category compare?

All NQE devices

NQE Microscope, Specular: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · NQE

1in 2020

2008: 12012: 12013: 12015: 12016: 12018: 22020: 1
2007high 2 (2018) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NQE

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

Recalls per year · NQE

1in 2019

2019: 1
2007high 1 (2019) · low 0 (2007)2026

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

Adverse event reports per year · NQE

No MAUDE report names NQE since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20081—00
20090—00
20100—00
20110—00
20121—00
20131—00
20140—00
20151—00
20161—00
20170—00
20182—00
20190—10
20201—00
20210—00
20220—00
20230—00
20240—00
20250—00
20260—0—

What is it indicated for?

The Konan Kerato Analyzer ("EKA") is a specular microscope used to make cell counts

of preserved corneas in eye banks and to measure the thicknesses of the corneas without

removing the corneas from their storage vials.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K040373: Kerato Analyzer (Eka).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K040373

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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