510(k) Report

510(k) · Cleared

Cleared

Konan Noncon Robo Pachy Specular Microscope and Opticl Pachymeter

K980357510(k) TraditionalCleared Apr 24, 199885-day reviewClass II21 CFR 886.1120

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

Konan, Inc. · HKI Camera, Ophthalmic, Ac-Powered

Cleared on Apr 24, 1998 as substantially equivalent to K950091 (Konan Medical, Inc., 1995) and 1 other predicate after an 85-day review. Its family tree reaches back 1 generation to 1992. 11 later devices descend from it.

Decided
Apr 24, 1998
Review
85 days
Class
Class II
Product code
HKI
Recalls
None
Predicates
2

Its longest line of descent runs back 1 generation to K920906 (1992). 2 ancestors in all. 11 later devices descend from it, 2 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 1995: 1 other ancestor2009: 1 descendant cleared2008: 1 descendant cleared2012: 1 descendant cleared2021: 1 descendant cleared2018: 2 descendants cleared2015: 1 descendant cleared2013: 1 descendant cleared2016: 1 descendant cleared2020: 1 descendant cleared2025: 1 descendant clearedK920906 · DGH-500 Pachymeter · Dgh Technology, Inc. · 19921990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor 1 generation forward: 2 descendants2 generations forward: 2 descendants3 generations forward: 6 descendants4 generations forward: 1 descendant K920906 · DGH-500 Pachymeter · Dgh Technology, Inc. · 19920
  1. Root · 1 generation backK920906 DGH-500 PachymeterDgh Technology, Inc. · 1992
  2. This deviceK980357 Konan Noncon Robo Pachy Specular Microscope and Opticl PachymeterKonan, Inc. · 1998
  3. Descendant · cites it directly · 10 of its ownK062763 Noncon Robo Pachy F&aKonan Medical, Inc. · 2008
  4. Descendant · 2 generations on · 7 of its ownK120264 Konan Specular Microscope XivKonan Medical, Inc. · 2012
  5. Descendant · 3 generations on · 2 of its ownK130565 Specular Microscope Cem-530Nidek Co., Ltd. · 2013 · Recalled
  6. Descendant · 3 generations on · 1 of its ownK151706 Specular Microscope CEM- 530Nidek Co., Ltd. · 2016 · Recalled
  7. Descendant · 3 generations on · 1 of its ownK142417 SP-1PSpecular MicroscopeTopcon Corporation · 2015

Showing 5 of 11 descendants. See all descendants

Descendants cleared per year

2008: 12009: 12012: 12013: 12015: 12016: 12018: 22020: 12021: 12025: 1
2008high 2 (2018) · low 0 (2010)2026

Most influential descendants

Showing 5 of 11 · See all
  • K062763Noncon Robo Pachy F&aKonan Medical, Inc. · 2008 · cites it directly10descendants
  • K120264Konan Specular Microscope XivKonan Medical, Inc. · 2012 · 2 generations on7descendants
  • K130565Specular Microscope Cem-530Nidek Co., Ltd. · 2013 · 3 generations on2descendants
  • K151706Specular Microscope CEM- 530Nidek Co., Ltd. · 2016 · 3 generations on1descendant
  • K142417SP-1PSpecular MicroscopeTopcon Corporation · 2015 · 3 generations on1descendant
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K920906DGH-500 PachymeterDgh Technology, Inc.1992—
0 (this device)K980357Konan Noncon Robo Pachy Specular Microscope and Opticl PachymeterKonan, Inc.1998—
+1K062763Noncon Robo Pachy F&aKonan Medical, Inc.2008—
+2K120264Konan Specular Microscope XivKonan Medical, Inc.2012—
+3K130565Specular Microscope Cem-530Nidek Co., Ltd.20131
+3K151706Specular Microscope CEM- 530Nidek Co., Ltd.20162
+3K142417SP-1PSpecular MicroscopeTopcon Corporation2015—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199510

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200810
200910
201210
201310
201510
201610
201820
202010
202110
202510
FIG. 1 — Lineage of K980357, 1992–2025Source: 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 HKI? 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 HKI device

  1. #1 K253176 TearViewscore 12.8 · 5 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

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 4
…elial Microscope and Cafhera and optical pachymeter Classification Name: Camera, Ophthalmic, AC-powered (3) Equivalent legally-marketed devices: 1. Konan Noncon Robo, K950091 2. DGH 2000 ultrasonic pachymeter, K920906 (4) Description The Noncon Robo Pachy specular microscope and optical pachymeter is…
Konan Medical, Inc.1995—
*K920906DGH-500 Pachymeter
Summary page 4
…achymeter Classification Name: Camera, Ophthalmic, AC-powered (3) Equivalent legally-marketed devices: 1. Konan Noncon Robo, K950091 2. DGH 2000 ultrasonic pachymeter, K920906 (4) Description The Noncon Robo Pachy specular microscope and optical pachymeter is a non-contact ophthalmic microscope, optica…
Dgh Technology, Inc.1992—

Also cleared against K950091: 1 other device →

What descends from it? (11)

See all 11

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

NumberDeviceApplicantDecidedDescendants
K062763Noncon Robo Pachy F&aKonan Medical, Inc.200810
K081797Image Storage System, Model KSS-400Konan Medical, Inc.20091

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.
  • Of its descendants, K062763 (Konan Medical, Inc., 2008) has gone furthest, with 10 descendants of its own.
  • 1 other device also cites its predicate K950091.

How does its category compare?

All HKI devices

HKI Camera, Ophthalmic, Ac-Powered: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · HKI

4in 2025

2007: 22008: 52009: 112010: 62011: 72012: 52013: 72014: 42016: 42017: 22018: 62019: 42020: 52021: 42022: 12023: 52024: 32025: 42026 (partial year): 2
2007high 11 (2009) · low 0 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HKI

167in 2025

2008: 29 days median2009: 104 days median2010: 140 days median2011: 160 days median2012: 179 days median2013: 141 days median2014: 135 days median2016: 146 days median2018: 71 days median2019: 73 days median2020: 182 days median2021: 155 days median2023: 259 days median2024: 28 days median2025: 167 days median
2007high 259 (2023) · low 28 (2024)2026

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

Recalls per year · HKI

1in 2018

2012: 12016: 12017: 12018: 1
2007high 1 (2012) · low 0 (2007)2026

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

Adverse event reports per year · HKI

1in 2023

2007: 32008: 12009: 12012: 22013: 222014: 32015: 32016: 662017: 202018: 142020: 52021: 32022: 12023: 1
2007high 66 (2016) · low 0 (2010)2025

MAUDE reports naming product code HKI, 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
20072—03
200852901
20091110401
2010614000
2011716000
2012517912
20137141022
2014413503
20150—03
20164146166
20172—120
2018671114
201947300
2020518205
2021415503
20221—01
2023525901
202432800
2025416700
20262—0—

What is it indicated for?

The Konan Noncon Robo Pachy is a specular microscope and

optical pachymeter, manufactured by Konan Inc. It is a non-contact ophthalmic microscope and camera intended for

examination of the corneal endothelium, with the additional

capability of measuring the corneal thickness by optical means.

Cell counting and analysis programs are included, and are

indicated when it is desired to analyze the images of the cell

distribution of the eye.

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. “K980357: Konan Noncon Robo Pachy Specular Microscope and Opticl Pachymeter.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K980357

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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