510(k) Report

510(k) · Cleared

Recalled · 2026

PENTAX Medical Endoscopic Ultrasound System

K182004510(k) SpecialCleared Aug 21, 201825-day reviewClass II21 CFR 876.1500Recalls 2

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

Pentax of America, Inc. · ODG Endoscopic Ultrasound System, Gastroenterology-Urology

Cleared on Aug 21, 2018 as substantially equivalent to K162447 (Pentax of America, Inc., 2017) after a 25-day review. Its family tree reaches back 8 generations to 1981. 3 later devices descend from it. It has been recalled 2 times.

Decided
Aug 21, 2018
Review
25 days
Class
Class II
Product code
ODG
Recalls
2
Predicates
1

Its longest line of descent runs back 8 generations to K812810 (1981). 15 ancestors in all. 3 later devices descend from it, 1 citing it directly.

  1. Root · 8 generations backK812810 Pentax Flexible DriodenofiberscopePentax Precision Instrument Corp. · 1981
  2. 7 generations backK961974 FG-36UX, Ultrasound Upper GI FiberscopePentax Precision Instrument Corp. · 1997 · Recalled
  3. 6 generations backK010740 FG-36UX, Fiber Ultrasound GastroscopePentax Precision Instrument Corp. · 2001
  4. 5 generations backK021278 EG-3630UR, Ultrasound Video GastroscopePentax Precision Instrument Corp. · 2002
  5. 4 generations backK023401 EG-3830UT, Video Ultrasound GastroscopePentax Precision Instrument Corp. · 2003
  6. 3 generations backK090197 EG-3870UTKPentax Medical Company · 2009 · Recalled
  7. 2 generations backK130247 Pentax EG-3870UTK Ultrasound Video Gastroscope + HI Vision PreirusPentax of America, Inc. · 2013 · Recalled
  8. 1 generation backK162447 PENTAX Medical Endoscopic Ultrasound System, EG-3270UK Upper G.I.…Pentax of America, Inc. · 2017
  9. This deviceK182004 PENTAX Medical Endoscopic Ultrasound SystemPentax of America, Inc. · 2018
  10. Descendant · cites it directly · 2 of its ownK200090 PENTAX Medical EG-J10U Endoscopic Ultrasound System - EG34-J10U…Pentax of America, Inc. · 2020 · Recalled
  11. Descendant · 2 generations on · 0 of its ownK232518 EndoSound Vision System; EVSEndosound, Inc. · 2023
  12. Descendant · 2 generations on · 0 of its ownK203166 PENTAX Medical Ultrasound Upper GI Video Scope EG34-J10U, PENTAX…Pentax of America, Inc. · 2020

Most influential descendants

Showing 3 of 3 · See all
  • K200090PENTAX Medical EG-J10U Endoscopic Ultrasound System - EG34-J10U Ultrasound Upper GI…Pentax of America, Inc. · 2020 · cites it directly2descendants
  • K232518EndoSound Vision System; EVSEndosound, Inc. · 2023 · 2 generations on0descendants
  • K203166PENTAX Medical Ultrasound Upper GI Video Scope EG34-J10U, PENTAX Medical Ultrasound…Pentax of America, Inc. · 2020 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−8K812810Pentax Flexible DriodenofiberscopePentax Precision Instrument Corp.1981—
−7K961974FG-36UX, Ultrasound Upper GI FiberscopePentax Precision Instrument Corp.19972
−6K010740FG-36UX, Fiber Ultrasound GastroscopePentax Precision Instrument Corp.2001—
−5K021278EG-3630UR, Ultrasound Video GastroscopePentax Precision Instrument Corp.2002—
−4K023401EG-3830UT, Video Ultrasound GastroscopePentax Precision Instrument Corp.2003—
−3K090197EG-3870UTKPentax Medical Company20092
−2K130247Pentax EG-3870UTK Ultrasound Video Gastroscope + HI Vision PreirusPentax of America, Inc.20131
−1K162447PENTAX Medical Endoscopic Ultrasound System, EG-3270UK Upper G.I. Video Scope…Pentax of America, Inc.2017—
0 (this device)K182004PENTAX Medical Endoscopic Ultrasound SystemPentax of America, Inc.2018—
+1K200090PENTAX Medical EG-J10U Endoscopic Ultrasound System - EG34-J10U Ultrasound…Pentax of America, Inc.20202
+2K232518EndoSound Vision System; EVSEndosound, Inc.2023—
+2K203166PENTAX Medical Ultrasound Upper GI Video Scope EG34-J10U, PENTAX Medical…Pentax of America, Inc.2020—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199110
199210
199510
200010
200220
200610

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202020
202310
FIG. 1 — Lineage of K182004, 1981–2023Source: 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 ODG? 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 ODG device

  1. #1 K251859 EVIS EUS Ultrasound Gastrointestinal…score 14.0 · 4 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? (1)

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
*K162447PENTAX Medical Endoscopic Ultrasound System, EG-3270UK Upper G.I. Video Scope (Convex…
Summary page 4
…Name: Endoscopic Ultrasound / Ultrasound Gastroscope Name of the System: PENTAX Medical Endoscopic Ultrasound System EG-3270UK Upper G.I. Video Scope (Convex Array Type, K162447), EG-3670URK Video Gastroscope (Radial Array Type, K130206) and EG-3870UTK (Convex Array Type, K130247) with EPK-i5010 Video Proc…
Pentax of America, Inc.2017—

What descends from it? (3)

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

NumberDeviceApplicantDecidedDescendants
K200090PENTAX Medical EG-J10U Endoscopic Ultrasound System - EG34-J10U Ultrasound Upper GI…Pentax of America, Inc.20202

Has anything in its family been recalled? (0 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Sep 9, 2026Not classifiedZ-0308-2027Unknown/Undetermined by firmWarnings added to the IFU for ultrasound endoscopes and water bottle assembly to ensure there is deaerated sterile water in the assembly prior to and during the procedure.
Sep 9, 2026Not classifiedZ-0309-2027Unknown/Undetermined by firmWarnings added to the IFU for ultrasound endoscopes and water bottle assembly to ensure there is deaerated sterile water in the assembly prior to and during the procedure.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 37 years and passes through 3 companies; a new generation was cleared every 4.1 years on median.
  • 4 of the 15 ancestors have a recall of any class.
  • Of its descendants, K200090 (Pentax of America, Inc., 2020) has gone furthest, with 2 descendants of its own.

How does its category compare?

All ODG devices

ODG Endoscopic Ultrasound System, Gastroenterology-Urology: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.

FDA decisions per year · ODG

2in 2025

2009: 22011: 22013: 22014: 12016: 12017: 42018: 32019: 12020: 22021: 12022: 42023: 12024: 12025: 22026 (partial year): 2
2007high 4 (2017) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · ODG

71in 2022

2017: 75 days median2018: 30 days median2022: 71 days median
2007high 75 (2017) · low 30 (2018)2026

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

Recalls per year · ODG

4in 2020

2020: 42026 (partial year): 4
2007high 4 (2020) · low 0 (2007)2026

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

Adverse event reports per year · ODG

3,569in 2025

2008: 12009: 32010: 22011: 132012: 62013: 22014: 12015: 112016: 502017: 822018: 662019: 962020: 4452021: 1,2342022: 1,8322023: 2,0782024: 1,9042025: 3,569
2007high 3,569 (2025) · low 0 (2007)2025

MAUDE reports naming product code ODG, 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—01
20092—03
20100—02
20112—013
20120—06
20132—02
20141—01
20150—011
20161—050
2017475082
2018330066
20191—096
20202—4445
20211—01,234
202247101,832
20231—02,078
20241—01,904
20252—03,569
20262—4—

What is it indicated for?

The PENTAX Medical Endoscopic Ultrasound System is intended to provide optical visualization of, ultrasonic visualization of, and therapeutic access to, the Upper Gastrointestinal Track including but not restricted to the organs, tissues, and subsystems: Esophagus, Stomach, Duodenum, Small Bowel, and underlying areas. The instrument is introduced per orally when indications consistent with the requirement for procedure are observed in adult and pediatric patient populations.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K182004: PENTAX Medical Endoscopic Ultrasound System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K182004

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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