510(k) Report

510(k) · Cleared

Cleared

RIOScan (RPS500)

K160788510(k) TraditionalCleared Apr 15, 201624-day reviewClass II21 CFR 872.1800

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

Ray Co., Ltd. · MUH System, X-Ray, Extraoral Source, Digital

Cleared on Apr 15, 2016 as substantially equivalent to K133231 (Instrumentarium Dental, Palodex Group OY, 2014) and 1 other predicate after a 24-day review. Its family tree reaches back 3 generations to 1994. 6 later devices descend from it.

Decided
Apr 15, 2016
Review
24 days
Class
Class II
Product code
MUH
Recalls
None
Predicates
2

Its longest line of descent runs back 3 generations to K934949 (1994). 4 ancestors in all. 6 later devices descend from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2014: 1 other ancestor2017: 1 descendant cleared2021: 1 descendant cleared2020: 1 descendant cleared2019: 1 descendant cleared2023: 2 descendants clearedReference device: K143000 · RIS500 · Ray Co., Ltd. · 2015K934949 · Digora · Orion Corporation Soredex · 1994K041050 · Digora Optime (or Digora Ontime) · Soredex Palodex Group OY · 2004 · recalledK131442 · Firecr Dentalimaging System · 3Disc Americas · 20131990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor 1 generation forward: 1 descendant2 generations forward: 3 descendants3 generations forward: 2 descendants K131442 · Firecr Dentalimaging System · 3Disc Americas · 2013K041050 · Digora Optime (or Digora Ontime) · Soredex Palodex Group OY · 2004 · recalledK934949 · Digora · Orion Corporation Soredex · 19940
  1. Root · 3 generations backK934949 DigoraOrion Corporation Soredex · 1994
  2. 2 generations backK041050 Digora Optime (or Digora Ontime)Soredex Palodex Group OY · 2004 · Recalled
  3. 1 generation backK131442 Firecr Dentalimaging System3Disc Americas · 2013
  4. This deviceK160788 RIOScan (RPS500)Ray Co., Ltd. · 2016
  5. Descendant · cites it directly · 5 of its ownK170733 ScanX Intraoral ViewDuerr Dental AG · 2017
  6. Descendant · 2 generations on · 1 of its ownK212080 Imaging Plate Scanner, i-ScanGuilin Woodpecker Medical Instrument Co., Ltd. · 2021
  7. Descendant · 2 generations on · 1 of its ownK202633 ScanX EdgeDürr Dental SE · 2020
  8. Descendant · 3 generations on · 0 of its ownK231660 Digital image scanner of dentalJiangsu Dynamic Medical Technology Co., Ltd. · 2023
  9. Descendant · 3 generations on · 0 of its ownK230095 ScanX Swift 2.0, ScanX Swift View 2.0Durr Dental SE · 2023

Showing 5 of 6 descendants. See all descendants

Descendants cleared per year

2017: 12019: 12020: 12021: 12023: 2
2017high 2 (2023) · low 0 (2018)2026

Most influential descendants

Showing 5 of 6 · See all
  • K170733ScanX Intraoral ViewDuerr Dental AG · 2017 · cites it directly5descendants
  • K212080Imaging Plate Scanner, i-ScanGuilin Woodpecker Medical Instrument Co., Ltd. · 2021 · 2 generations on1descendant
  • K202633ScanX EdgeDürr Dental SE · 2020 · 2 generations on1descendant
  • K231660Digital image scanner of dentalJiangsu Dynamic Medical Technology Co., Ltd. · 2023 · 3 generations on0descendants
  • K230095ScanX Swift 2.0, ScanX Swift View 2.0Durr Dental SE · 2023 · 3 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−3K934949DigoraOrion Corporation Soredex1994—
−2K041050Digora Optime (or Digora Ontime)Soredex Palodex Group OY20044
−1K131442Firecr Dentalimaging System3Disc Americas2013—
0 (this device)K160788RIOScan (RPS500)Ray Co., Ltd.2016—
+1K170733ScanX Intraoral ViewDuerr Dental AG2017—
+2K212080Imaging Plate Scanner, i-ScanGuilin Woodpecker Medical Instrument Co., Ltd.2021—
+2K202633ScanX EdgeDürr Dental SE2020—
+3K231660Digital image scanner of dentalJiangsu Dynamic Medical Technology Co., Ltd.2023—
+3K230095ScanX Swift 2.0, ScanX Swift View 2.0Durr Dental SE2023—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
201410

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201710
201910
202010
202110
202320
FIG. 1 — Lineage of K160788, 1994–2023Source: 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 MUH? 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 MUH device

  1. #1 K242778 X Sensor (Model: IOS-A15IF, HDI-15DGF)score 16.0 · 7 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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
*K133231Digora Optime
Summary page 5
…ges. Predicate device 1) Predicate device-1 Manufacturer: PaloDEx Group Oy Device: DIGORA Optime (DXR-60) 510(k) Number: K133231 2) Predicate device-2 Manufacturer: 3D Imaging & Simulations Corp Device: FireCR Dental Imaging SYste…
Instrumentarium Dental, Palodex Group OY2014—
*K131442Firecr Dentalimaging System
Summary page 5
…mber: K133231 2) Predicate device-2 Manufacturer: 3D Imaging & Simulations Corp Device: FireCR Dental Imaging SYstem 510(k) Number: K131442 Statement of Substantial Equivalence Parameter Proposed Device Predicated Device Pr…
3Disc Americas2013—
†K143000RIS500Ray Co., Ltd.2015—

Also cleared against K133231: 1 other device →

What descends from it? (6)

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

NumberDeviceApplicantDecidedDescendants
K170733ScanX Intraoral ViewDuerr Dental AG20175

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?

  • The line of descent spans 22 years and passes through 4 companies; a new generation was cleared every 9.2 years on median.
  • 1 of the 4 ancestors has a recall of any class.
  • Of its descendants, K170733 (Duerr Dental AG, 2017) has gone furthest, with 5 descendants of its own.
  • 1 other device also cites its predicate K133231.

How does its category compare?

All MUH devices

MUH System, X-Ray, Extraoral Source, Digital: FDA decisions, review times, recalls and adverse event reports over 20 years. 2016, this device’s year, is highlighted.

FDA decisions per year · MUH

3in 2025

2007: 112008: 82009: 92010: 92011: 102012: 92013: 92014: 82015: 122016: 62017: 92018: 32019: 52020: 52021: 102022: 72023: 112024: 42025: 32026 (partial year): 2
2007high 12 (2015) · low 3 (2018)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · MUH

159in 2025

2007: 48 days median2008: 64 days median2009: 88 days median2010: 174 days median2011: 89 days median2012: 81 days median2013: 172 days median2014: 168 days median2015: 111 days median2016: 47 days median2017: 84 days median2018: 29 days median2019: 64 days median2020: 36 days median2021: 80 days median2022: 57 days median2023: 57 days median2024: 144 days median2025: 159 days median
2007high 174 (2010) · low 29 (2018)2026

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

Recalls per year · MUH

1in 2015

2008: 12009: 22013: 12014: 12015: 1
2007high 2 (2009) · low 0 (2007)2026

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

Adverse event reports per year · MUH

1in 2025

2009: 122010: 92012: 52013: 12014: 52015: 32016: 12017: 42018: 102019: 62021: 12023: 12025: 1
2007high 12 (2009) · low 0 (2007)2025

MAUDE reports naming product code MUH, 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
2007114800
200886410
2009988212
2010917409
2011108900
201298105
2013917211
2014816815
20151211113
201664701
201798404
2018329010
201956406
202053600
2021108001
202275700
2023115701
2024414400
2025315901
20262—0—

What is it indicated for?

This system is a digital intraoral dental radiographic imaging system intended for use by dentists and dental subspecialists. The system captures, digitizes, displays and sores diagnostic intraoral radiographic images.

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. “K160788: RIOScan (RPS500).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K160788

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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