510(k) · Cleared
ClearedRS85 Diagnostic Ultrasound System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Samsung Medison Co., Ltd. · IYN System, Imaging, Pulsed Doppler, Ultrasonic
Cleared on Feb 5, 2018 as substantially equivalent to K171048 (Samsung Medison Co., Ltd., 2017) and 3 other predicates after a 126-day review. Its family tree reaches back 26 generations to 1993. 39 later devices descend from it.
- Decided
- Feb 5, 2018
- Review
- 126 days
- Class
- Class II
- Product code
- IYN
- Recalls
- None
- Predicates
- 4
Its longest line of descent runs back 26 generations to K924432 (1993). 274 ancestors in all, the oldest K863700 (1987). 39 later devices descend from it, 3 citing it directly.
- Root · 26 generations backK924432 Medison 1500Medison Co., Ltd. · 1993
- 22 generations between
- 3 generations backK153529 WS80A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2016 · Recalled
- 2 generations backK162094 RS80A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2016
- 1 generation backK163691 HS70A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2017
- This deviceK173204 RS85 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2018
- Descendant · cites it directly · 31 of its ownK181336 HS50 / HS60 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2018
- Descendant · cites it directly · 26 of its ownK182595 HERA W10 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2018
- Descendant · cites it directly · 24 of its ownK182932 RS85 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2019
- Descendant · 2 generations on · 23 of its ownK191115 RS85 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2019
- Descendant · 2 generations on · 21 of its ownK192903 RS85 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2020
Show all 26 generations
- Root · 26 generations backK924432 Medison 1500Medison Co., Ltd. · 1993
- 25 generations backK981510 Sonoace 6000/ Ultramark 400Medison America, Inc. · 1998
- 24 generations backK990970 Sonoace 6000C Diagnostic Ultrasound System and Transducers, Also…Medison America, Inc. · 1999
- 23 generations backK002185 Sonoace SA 9900 Diagnostic Ultrasound SystemMedison America, Inc. · 2000 · Recalled
- 22 generations backK013627 Sonoace SA-8000 Diagnostic Ultrasound SystemMedison America, Inc. · 2001
- 21 generations backK032329 SA 9900 Plus Diagnostic Ultrasound SystemMedison America, Inc. · 2003
- 20 generations backK052911 Accuvix XQ Diagnostic Ultrasound SystemMedison Co., Ltd. · 2005
- 19 generations backK063580 Sonoace X8 Diagnostic Ultrasound SystemMedison Co., Ltd. · 2006
- 18 generations backK070813 Accuvix V10 Diagnostic Ultrasound SystemMedison Co., Ltd. · 2007
- 17 generations backK080800 Accuvix V20 Diagnostic Ultrasound SystemMedison Co., Ltd. · 2008
- 16 generations backK092159 Accuvix V20 Diagnostic Ultrasound SystemMedison Co., Ltd. · 2009
- 15 generations backK093849 Accuvix V10 Diagnostic Ultrasound SystemMedison Co., Ltd. · 2010
- 14 generations backK101455 Eko 7 Diagnostic Ultrasound SystemMedison Co., Ltd. · 2010
- 13 generations backK103397 Accuvix XG Diagnostic Ultrasound SystemMedison Co., Ltd. · 2011
- 12 generations backK112339 Accuvix A30 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2011
- 11 generations backK122583 Ugeo G60 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2012
- 10 generations backK130803 Ugeo H70C Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2013
- 9 generations backK133329 Ugeo WS80A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2013
- 8 generations backK141620 RS80A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2014
- 7 generations backK143089 WS80A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2014
- 6 generations backK150478 A35 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2015
- 5 generations backK151663 RS80A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2015
- 4 generations backK152962 HS70A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2015
- 3 generations backK153529 WS80A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2016 · Recalled
- 2 generations backK162094 RS80A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2016
- 1 generation backK163691 HS70A Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2017
- This deviceK173204 RS85 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2018
Showing 5 of 39 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 39 · See all- K181336HS50 / HS60 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2018 · cites it directly31descendants
- K182595HERA W10 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2018 · cites it directly26descendants
- K182932RS85 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2019 · cites it directly24descendants
- K191115RS85 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2019 · 2 generations on23descendants
- K192903RS85 Diagnostic Ultrasound SystemSamsung Medison Co., Ltd. · 2020 · 2 generations on21descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −26 | K924432 | Medison 1500 | Medison Co., Ltd. | 1993 | — |
| −25 | K981510 | Sonoace 6000/ Ultramark 400 | Medison America, Inc. | 1998 | — |
| −24 | K990970 | Sonoace 6000C Diagnostic Ultrasound System and Transducers, Also Called… | Medison America, Inc. | 1999 | — |
| −23 | K002185 | Sonoace SA 9900 Diagnostic Ultrasound System | Medison America, Inc. | 2000 | 1 |
| −22 | K013627 | Sonoace SA-8000 Diagnostic Ultrasound System | Medison America, Inc. | 2001 | — |
| −21 | K032329 | SA 9900 Plus Diagnostic Ultrasound System | Medison America, Inc. | 2003 | — |
| −20 | K052911 | Accuvix XQ Diagnostic Ultrasound System | Medison Co., Ltd. | 2005 | — |
| −19 | K063580 | Sonoace X8 Diagnostic Ultrasound System | Medison Co., Ltd. | 2006 | — |
| −18 | K070813 | Accuvix V10 Diagnostic Ultrasound System | Medison Co., Ltd. | 2007 | — |
| −17 | K080800 | Accuvix V20 Diagnostic Ultrasound System | Medison Co., Ltd. | 2008 | — |
| −16 | K092159 | Accuvix V20 Diagnostic Ultrasound System | Medison Co., Ltd. | 2009 | — |
| −15 | K093849 | Accuvix V10 Diagnostic Ultrasound System | Medison Co., Ltd. | 2010 | — |
| −14 | K101455 | Eko 7 Diagnostic Ultrasound System | Medison Co., Ltd. | 2010 | — |
| −13 | K103397 | Accuvix XG Diagnostic Ultrasound System | Medison Co., Ltd. | 2011 | — |
| −12 | K112339 | Accuvix A30 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2011 | — |
| −11 | K122583 | Ugeo G60 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2012 | — |
| −10 | K130803 | Ugeo H70C Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2013 | — |
| −9 | K133329 | Ugeo WS80A Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2013 | — |
| −8 | K141620 | RS80A Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2014 | — |
| −7 | K143089 | WS80A Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2014 | — |
| −6 | K150478 | A35 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2015 | — |
| −5 | K151663 | RS80A Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2015 | — |
| −4 | K152962 | HS70A Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2015 | — |
| −3 | K153529 | WS80A Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2016 | 1 |
| −2 | K162094 | RS80A Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2016 | — |
| −1 | K163691 | HS70A Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2017 | — |
| 0 (this device) | K173204 | RS85 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2018 | — |
| +1 | K181336 | HS50 / HS60 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2018 | — |
| +1 | K182595 | HERA W10 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2018 | — |
| +1 | K182932 | RS85 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2019 | — |
| +2 | K191115 | RS85 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2019 | — |
| +2 | K192903 | RS85 Diagnostic Ultrasound System | Samsung Medison Co., Ltd. | 2020 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1987 | 1 | 0 |
| 1989 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 10 | 0 |
| 1998 | 4 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 15 | 0 |
| 2002 | 14 | 0 |
| 2003 | 22 | 0 |
| 2004 | 23 | 0 |
| 2005 | 15 | 0 |
| 2006 | 11 | 0 |
| 2007 | 9 | 0 |
| 2008 | 8 | 0 |
| 2009 | 7 | 0 |
| 2010 | 14 | 0 |
| 2011 | 15 | 0 |
| 2012 | 12 | 0 |
| 2013 | 13 | 0 |
| 2014 | 8 | 0 |
| 2015 | 4 | 0 |
| 2016 | 2 | 0 |
| 2017 | 2 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2018 | 2 | 0 |
| 2019 | 7 | 0 |
| 2020 | 4 | 0 |
| 2021 | 6 | 0 |
| 2022 | 5 | 0 |
| 2023 | 4 | 0 |
| 2024 | 5 | 0 |
| 2025 | 2 | 0 |
| 2026 | 4 | 0 |
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 IYN? 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 IYN device
- #1 K240850 EPIQ Series Diagnostic Ultrasound Systems…score 32.1 · 24 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (4)
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K171048 | RS80A Diagnostic Ultrasound SystemSummary page 5…N N N Note 1 Notes 2,6,7,8,9,11,14 Vessel Other (spec.) N= new indication; P= previously cleared by FDA K171070, K171048, K163691; E= added under Appendix E Additional Comments: Color Doppler includes Power (Amplitude) Doppler Note 1: B+M, B+… | 2017 |
| * | K171070 | WS80A Diagnostic Ultrasound SystemSummary page 5…N N N N Note 1 Notes 2,6,7,8,9,11,14 Vessel Other (spec.) N= new indication; P= previously cleared by FDA K171070, K171048, K163691; E= added under Appendix E Additional Comments: Color Doppler includes Power (Amplitude) Doppler Note 1… | 2017 |
| * | K132274 | AixplorerSummary page 28…- RS80A Diagnostic Ultrasound System (K171048) - WS80A Diagnostic Ultrasound System (K171070) - Aixplorer ® Diagnostic Ultrasound System (K132274) - HS70A Diagnostic Ultrasound System (K163691) 7. Device Description The RS85 is a general pu… | 2013 |
| * | K163691 | HS70A Diagnostic Ultrasound SystemSummary page 5…N Note 1 Notes 2,6,7,8,9,11,14 Vessel Other (spec.) N= new indication; P= previously cleared by FDA K171070, K171048, K163691; E= added under Appendix E Additional Comments: Color Doppler includes Power (Amplitude) Doppler Note 1: B+M, B+PW, B+C,… | 2017 |
What descends from it? (39)
See all 393 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 25 years and passes through 3 companies; a new generation was cleared every 7 months on median.
- 63 of the 274 ancestors have a recall of any class.
- Of its descendants, K181336 (Samsung Medison Co., Ltd., 2018) has gone furthest, with 31 descendants of its own.
- 2 other devices also cite its predicate K171048.
How does its category compare?
All IYN devicesIYN System, Imaging, Pulsed Doppler, Ultrasonic: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.
FDA decisions per year · IYN
57in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · IYN
124in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · IYN
10in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · IYN
610in 2025
MAUDE reports naming product code IYN, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 13 | 26 | 16 | 3 |
| 2008 | 25 | 18 | 12 | 2 |
| 2009 | 18 | 29 | 8 | 9 |
| 2010 | 29 | 67 | 10 | 17 |
| 2011 | 39 | 46 | 8 | 18 |
| 2012 | 43 | 37 | 3 | 20 |
| 2013 | 51 | 60 | 8 | 18 |
| 2014 | 56 | 39 | 2 | 48 |
| 2015 | 54 | 55 | 3 | 116 |
| 2016 | 60 | 56 | 2 | 145 |
| 2017 | 64 | 83 | 0 | 146 |
| 2018 | 59 | 85 | 7 | 85 |
| 2019 | 47 | 79 | 0 | 59 |
| 2020 | 57 | 72 | 4 | 67 |
| 2021 | 46 | 105 | 8 | 213 |
| 2022 | 53 | 105 | 10 | 186 |
| 2023 | 44 | 115 | 4 | 229 |
| 2024 | 50 | 119 | 1 | 266 |
| 2025 | 57 | 124 | 10 | 610 |
| 2026 | 44 | 107 | 2 (1) | — |
What is it indicated for?
The ultrasound diagnostic system and probes are designed to obtain ultrasound images and analyze body fluid. The clinical applications include: Fetal/Obstetrics, Abdominal, Gynecology, Intraoperative, Pediatric, Small Organ, Neonatal Cephalic, Adult Cephalic, Trans-rectal, Trans-vaginal, Muscular-Skeletal (Conventional, Superficial), Urology, Cardiac Adult, Cardiac Pediatric, Trans-esophageal (Cardiac) and Peripheral vessel.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K173204 · printed Nov 4, 2026
Cite this page
510(k) Report. “K173204: RS85 Diagnostic Ultrasound System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K173204
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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