510(k) · Cleared
ClearedSonoSite SII Ultrasound System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
FUJIFILM Sonosite, Inc. · IYN System, Imaging, Pulsed Doppler, Ultrasonic
Cleared on Feb 7, 2019 as substantially equivalent to K162045 (FUJIFILM Sonosite, Inc., 2016) after a 79-day review. Its family tree reaches back 15 generations to 1995. 1 later device descends from it.
- Decided
- Feb 7, 2019
- Review
- 79 days
- Class
- Class II
- Product code
- IYN
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 15 generations to K945773 (1995). 58 ancestors in all, the oldest K891689 (1989). 1 later device descends from it, 1 citing it directly.
- Root · 15 generations backK945773 Siemens Sonoline VersaSiemens Medical Solutions USA, Inc. · 1995
- 11 generations between
- 3 generations backK153626 SonoSite Edge II Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
- 2 generations backK160734 SonoSite SII Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
- 1 generation backK162045 SonoSite SII Ultrasound System, SonoSite Edge II Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
- This deviceK183235 SonoSite SII Ultrasound SystemFUJIFILM Sonosite, Inc. · 2019
- Descendant · cites it directly · 0 of its ownK202160 Sonosite PX Ultrasound System, Sonosite SII Ultrasound System…FUJIFILM Sonosite, Inc. · 2020
Show all 15 generations
- Root · 15 generations backK945773 Siemens Sonoline VersaSiemens Medical Solutions USA, Inc. · 1995
- 14 generations backK020353 Omnia X/XS Ultrasound SystemSiemens Medical Systems, Inc. · 2002
- 13 generations backK030949 Titan High Resolution Ultrasound SystemSonosite,Inc. · 2003
- 12 generations backK043559 Sonosite High-Resolution Diagnostic Ultrasound System (C3 Series)Sonosite,Inc. · 2005 · Recalled
- 11 generations backK053069 Sonosite Micromaxx Diagnostic Ultrasound System (C3 Series)Sonosite,Inc. · 2005 · Recalled
- 10 generations backK071134 Sonosite Maxx Series Diagnostic Ultrasound SystemSonosite,Inc. · 2007 · Recalled
- 9 generations backK082098 Sonosite Maxx Series Ultrasound SystemSonosite,Inc. · 2008 · Recalled
- 8 generations backK113156 Sonosite Edge Ultrasound SystemSonosite,Inc. · 2011 · Recalled
- 7 generations backK130173 Sonosite Maxx Series Ultrasound SystemFUJIFILM Sonosite, Inc. · 2013 · Recalled
- 6 generations backK133454 Sonosite Edge Ultrasound SystemFUJIFILM Sonosite, Inc. · 2013
- 5 generations backK142017 X-Porte Ultrasound SystemFUJIFILM Sonosite, Inc. · 2014
- 4 generations backK152209 FUJIFILM SonoSite X-Porte Ultrasound SystemFUJIFILM Sonosite, Inc. · 2015
- 3 generations backK153626 SonoSite Edge II Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
- 2 generations backK160734 SonoSite SII Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
- 1 generation backK162045 SonoSite SII Ultrasound System, SonoSite Edge II Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
- This deviceK183235 SonoSite SII Ultrasound SystemFUJIFILM Sonosite, Inc. · 2019
Most influential descendants
Showing 1 of 1 · See all- K202160Sonosite PX Ultrasound System, Sonosite SII Ultrasound System, Sonosite iViz Ultrasound…FUJIFILM Sonosite, Inc. · 2020 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −15 | K945773 | Siemens Sonoline Versa | Siemens Medical Solutions USA, Inc. | 1995 | — |
| −14 | K020353 | Omnia X/XS Ultrasound System | Siemens Medical Systems, Inc. | 2002 | — |
| −13 | K030949 | Titan High Resolution Ultrasound System | Sonosite,Inc. | 2003 | — |
| −12 | K043559 | Sonosite High-Resolution Diagnostic Ultrasound System (C3 Series) | Sonosite,Inc. | 2005 | 4 |
| −11 | K053069 | Sonosite Micromaxx Diagnostic Ultrasound System (C3 Series) | Sonosite,Inc. | 2005 | 3 |
| −10 | K071134 | Sonosite Maxx Series Diagnostic Ultrasound System | Sonosite,Inc. | 2007 | 2 |
| −9 | K082098 | Sonosite Maxx Series Ultrasound System | Sonosite,Inc. | 2008 | 2 |
| −8 | K113156 | Sonosite Edge Ultrasound System | Sonosite,Inc. | 2011 | 1 |
| −7 | K130173 | Sonosite Maxx Series Ultrasound System | FUJIFILM Sonosite, Inc. | 2013 | 1 |
| −6 | K133454 | Sonosite Edge Ultrasound System | FUJIFILM Sonosite, Inc. | 2013 | — |
| −5 | K142017 | X-Porte Ultrasound System | FUJIFILM Sonosite, Inc. | 2014 | — |
| −4 | K152209 | FUJIFILM SonoSite X-Porte Ultrasound System | FUJIFILM Sonosite, Inc. | 2015 | — |
| −3 | K153626 | SonoSite Edge II Ultrasound System | FUJIFILM Sonosite, Inc. | 2016 | — |
| −2 | K160734 | SonoSite SII Ultrasound System | FUJIFILM Sonosite, Inc. | 2016 | — |
| −1 | K162045 | SonoSite SII Ultrasound System, SonoSite Edge II Ultrasound System | FUJIFILM Sonosite, Inc. | 2016 | — |
| 0 (this device) | K183235 | SonoSite SII Ultrasound System | FUJIFILM Sonosite, Inc. | 2019 | — |
| +1 | K202160 | Sonosite PX Ultrasound System, Sonosite SII Ultrasound System, Sonosite iViz… | FUJIFILM Sonosite, Inc. | 2020 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1989 | 1 | 0 |
| 1992 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 0 |
| 2003 | 2 | 0 |
| 2004 | 2 | 0 |
| 2006 | 1 | 0 |
| 2008 | 1 | 0 |
| 2010 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2016 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2020 | 1 | 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? (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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K162045 | SonoSite SII Ultrasound System, SonoSite Edge II Ultrasound SystemSummary page 4…THI) 3: Tissue Doppler Imaging (TDI) 4: Steep Needle Profiling (Sono MBe) 5: Multi-beam Imaging (SonoMB) in B-Mode All items marked “P” were previously cleared in 510(k) K162045 and K160734 Prescription Use (Per 21 CFR 801.109) Table 1.3-2: Diagnostic Ultrasound Indications for Use Form –… | 2016 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K202160 | Sonosite PX Ultrasound System, Sonosite SII Ultrasound System, Sonosite iViz Ultrasound… | 2020 | 0 |
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 24 years and passes through 4 companies; a new generation was cleared every 1.1 years on median.
- 13 of the 58 ancestors have a recall of any class.
- Of its descendants, K202160 (FUJIFILM Sonosite, Inc., 2020) has gone furthest, with 0 descendants of its own.
- 6 other devices also cite its predicate K162045.
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. 2019, 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 SonoSite SII Ultrasound System is a general purpose ultrasound system intended for use by qualified physicians and healthcare professionals for evaluation by ultrasound imaging or fluid flow analysis of the human body. Specific clinical applications and exam types include:
Ophthalmic
Fetal - OB/GYN
Abdominal
Pediatric
Small Organ (breast, thyroid, testicle, prostate)
Neonatal Cephalic
Adult Cephalic
Trans-rectal
Trans-vaginal
Musculo-skeletal (Conventional)
Musculo-skeletal (Superficial)
Cardiac Adult
Cardiac Pediatric
Peripheral Vessel
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K183235 · printed Nov 6, 2026
Cite this page
510(k) Report. “K183235: SonoSite SII Ultrasound System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K183235
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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