510(k) Report

510(k) · Cleared

Cleared

Sonosite LX and Sonosite PX Ultrasound Systems

K251106510(k) TraditionalCleared Aug 29, 2025140-day reviewClass II21 CFR 892.1550

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

FUJIFILM Sonosite, Inc. · IYN System, Imaging, Pulsed Doppler, Ultrasonic

Cleared on Aug 29, 2025 as substantially equivalent to K233597 (FUJIFILM Sonosite, Inc., 2023) after a 140-day review. Its family tree reaches back 19 generations to 1995.

Decided
Aug 29, 2025
Review
140 days
Class
Class II
Product code
IYN
Recalls
None
Predicates
1

Its longest line of descent runs back 19 generations to K945773 (1995). 62 ancestors in all, the oldest K891689 (1989). No later device cites it as a predicate yet.

Other ancestors, by year cleared 2016: 1 other ancestor2012: 1 other ancestor2010: 1 other ancestor2013: 1 other ancestor2008: 1 other ancestor2006: 1 other ancestor2004: 2 other ancestors2001: 5 other ancestors2003: 2 other ancestors2002: 3 other ancestors2000: 6 other ancestors1999: 5 other ancestors1997: 5 other ancestors1998: 1 other ancestor1995: 3 other ancestors1994: 3 other ancestors1992: 1 other ancestor1989: 1 other ancestorReference device: K213763 · Sonosite PX Ultrasound System · FUJIFILM Sonosite, Inc. · 2021K945773 · Siemens Sonoline Versa · Siemens Medical Solutions USA, Inc. · 1995K020353 · Omnia X/XS Ultrasound System · Siemens Medical Systems, Inc. · 2002K030949 · Titan High Resolution Ultrasound System · Sonosite,Inc. · 2003K043559 · Sonosite High-Resolution Diagnostic Ultrasound System (C3 Series) · Sonosite,Inc. · 2005 · recalledK053069 · Sonosite Micromaxx Diagnostic Ultrasound System (C3 Series) · Sonosite,Inc. · 2005 · recalledK071134 · Sonosite Maxx Series Diagnostic Ultrasound System · Sonosite,Inc. · 2007 · recalledK082098 · Sonosite Maxx Series Ultrasound System · Sonosite,Inc. · 2008 · recalledK113156 · Sonosite Edge Ultrasound System · Sonosite,Inc. · 2011 · recalledK130173 · Sonosite Maxx Series Ultrasound System · FUJIFILM Sonosite, Inc. · 2013 · recalledK133454 · Sonosite Edge Ultrasound System · FUJIFILM Sonosite, Inc. · 2013K142017 · X-Porte Ultrasound System · FUJIFILM Sonosite, Inc. · 2014×4: 4 generations cleared close together, K152209 (2015), K153626 (2016), K160734 (2016), K162045 (2016) K171437 · SonoSite X-Porte Ultrasound System · FUJIFILM Sonosite, Inc. · 2017K200964 · Sonosite PX Ultrasound System · FUJIFILM Sonosite, Inc. · 2020K213763 · Sonosite PX Ultrasound System · FUJIFILM Sonosite, Inc. · 2021K233597 · Sonosite LX Ultrasound System · FUJIFILM Sonosite, Inc. · 20231990200020102020
Other ancestors, by generation 3 generations back: 1 other ancestor5 generations back: 2 other ancestors6 generations back: 6 other ancestors7 generations back: 14 other ancestors8 generations back: 12 other ancestors9 generations back: 8 other ancestors K233597 · Sonosite LX Ultrasound System · FUJIFILM Sonosite, Inc. · 2023K213763 · Sonosite PX Ultrasound System · FUJIFILM Sonosite, Inc. · 2021K200964 · Sonosite PX Ultrasound System · FUJIFILM Sonosite, Inc. · 2020K171437 · SonoSite X-Porte Ultrasound System · FUJIFILM Sonosite, Inc. · 2017K162045 · SonoSite SII Ultrasound System, SonoSite Edge II Ultrasound System · FUJIFILM Sonosite, Inc. · 2016K160734 · SonoSite SII Ultrasound System · FUJIFILM Sonosite, Inc. · 2016K153626 · SonoSite Edge II Ultrasound System · FUJIFILM Sonosite, Inc. · 2016K152209 · FUJIFILM SonoSite X-Porte Ultrasound System · FUJIFILM Sonosite, Inc. · 2015K142017 · X-Porte Ultrasound System · FUJIFILM Sonosite, Inc. · 2014K133454 · Sonosite Edge Ultrasound System · FUJIFILM Sonosite, Inc. · 2013K130173 · Sonosite Maxx Series Ultrasound System · FUJIFILM Sonosite, Inc. · 2013 · recalledK113156 · Sonosite Edge Ultrasound System · Sonosite,Inc. · 2011 · recalledK082098 · Sonosite Maxx Series Ultrasound System · Sonosite,Inc. · 2008 · recalledK071134 · Sonosite Maxx Series Diagnostic Ultrasound System · Sonosite,Inc. · 2007 · recalledK053069 · Sonosite Micromaxx Diagnostic Ultrasound System (C3 Series) · Sonosite,Inc. · 2005 · recalledK043559 · Sonosite High-Resolution Diagnostic Ultrasound System (C3 Series) · Sonosite,Inc. · 2005 · recalledK030949 · Titan High Resolution Ultrasound System · Sonosite,Inc. · 2003K020353 · Omnia X/XS Ultrasound System · Siemens Medical Systems, Inc. · 2002K945773 · Siemens Sonoline Versa · Siemens Medical Solutions USA, Inc. · 1995−15−10−50
  1. Root · 19 generations backK945773 Siemens Sonoline VersaSiemens Medical Solutions USA, Inc. · 1995
  2. 15 generations between
  3. 3 generations backK200964 Sonosite PX Ultrasound SystemFUJIFILM Sonosite, Inc. · 2020
  4. 2 generations backK213763 Sonosite PX Ultrasound SystemFUJIFILM Sonosite, Inc. · 2021
  5. 1 generation backK233597 Sonosite LX Ultrasound SystemFUJIFILM Sonosite, Inc. · 2023
  6. This deviceK251106 Sonosite LX and Sonosite PX Ultrasound SystemsFUJIFILM Sonosite, Inc. · 2025
Show all 19 generations
  1. Root · 19 generations backK945773 Siemens Sonoline VersaSiemens Medical Solutions USA, Inc. · 1995
  2. 18 generations backK020353 Omnia X/XS Ultrasound SystemSiemens Medical Systems, Inc. · 2002
  3. 17 generations backK030949 Titan High Resolution Ultrasound SystemSonosite,Inc. · 2003
  4. 16 generations backK043559 Sonosite High-Resolution Diagnostic Ultrasound System (C3 Series)Sonosite,Inc. · 2005 · Recalled
  5. 15 generations backK053069 Sonosite Micromaxx Diagnostic Ultrasound System (C3 Series)Sonosite,Inc. · 2005 · Recalled
  6. 14 generations backK071134 Sonosite Maxx Series Diagnostic Ultrasound SystemSonosite,Inc. · 2007 · Recalled
  7. 13 generations backK082098 Sonosite Maxx Series Ultrasound SystemSonosite,Inc. · 2008 · Recalled
  8. 12 generations backK113156 Sonosite Edge Ultrasound SystemSonosite,Inc. · 2011 · Recalled
  9. 11 generations backK130173 Sonosite Maxx Series Ultrasound SystemFUJIFILM Sonosite, Inc. · 2013 · Recalled
  10. 10 generations backK133454 Sonosite Edge Ultrasound SystemFUJIFILM Sonosite, Inc. · 2013
  11. 9 generations backK142017 X-Porte Ultrasound SystemFUJIFILM Sonosite, Inc. · 2014
  12. 8 generations backK152209 FUJIFILM SonoSite X-Porte Ultrasound SystemFUJIFILM Sonosite, Inc. · 2015
  13. 7 generations backK153626 SonoSite Edge II Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
  14. 6 generations backK160734 SonoSite SII Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
  15. 5 generations backK162045 SonoSite SII Ultrasound System, SonoSite Edge II Ultrasound SystemFUJIFILM Sonosite, Inc. · 2016
  16. 4 generations backK171437 SonoSite X-Porte Ultrasound SystemFUJIFILM Sonosite, Inc. · 2017
  17. 3 generations backK200964 Sonosite PX Ultrasound SystemFUJIFILM Sonosite, Inc. · 2020
  18. 2 generations backK213763 Sonosite PX Ultrasound SystemFUJIFILM Sonosite, Inc. · 2021
  19. 1 generation backK233597 Sonosite LX Ultrasound SystemFUJIFILM Sonosite, Inc. · 2023
  20. This deviceK251106 Sonosite LX and Sonosite PX Ultrasound SystemsFUJIFILM Sonosite, Inc. · 2025
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−19K945773Siemens Sonoline VersaSiemens Medical Solutions USA, Inc.1995—
−18K020353Omnia X/XS Ultrasound SystemSiemens Medical Systems, Inc.2002—
−17K030949Titan High Resolution Ultrasound SystemSonosite,Inc.2003—
−16K043559Sonosite High-Resolution Diagnostic Ultrasound System (C3 Series)Sonosite,Inc.20054
−15K053069Sonosite Micromaxx Diagnostic Ultrasound System (C3 Series)Sonosite,Inc.20053
−14K071134Sonosite Maxx Series Diagnostic Ultrasound SystemSonosite,Inc.20072
−13K082098Sonosite Maxx Series Ultrasound SystemSonosite,Inc.20082
−12K113156Sonosite Edge Ultrasound SystemSonosite,Inc.20111
−11K130173Sonosite Maxx Series Ultrasound SystemFUJIFILM Sonosite, Inc.20131
−10K133454Sonosite Edge Ultrasound SystemFUJIFILM Sonosite, Inc.2013—
−9K142017X-Porte Ultrasound SystemFUJIFILM Sonosite, Inc.2014—
−8K152209FUJIFILM SonoSite X-Porte Ultrasound SystemFUJIFILM Sonosite, Inc.2015—
−7K153626SonoSite Edge II Ultrasound SystemFUJIFILM Sonosite, Inc.2016—
−6K160734SonoSite SII Ultrasound SystemFUJIFILM Sonosite, Inc.2016—
−5K162045SonoSite SII Ultrasound System, SonoSite Edge II Ultrasound SystemFUJIFILM Sonosite, Inc.2016—
−4K171437SonoSite X-Porte Ultrasound SystemFUJIFILM Sonosite, Inc.2017—
−3K200964Sonosite PX Ultrasound SystemFUJIFILM Sonosite, Inc.2020—
−2K213763Sonosite PX Ultrasound SystemFUJIFILM Sonosite, Inc.2021—
−1K233597Sonosite LX Ultrasound SystemFUJIFILM Sonosite, Inc.2023—
0 (this device)K251106Sonosite LX and Sonosite PX Ultrasound SystemsFUJIFILM Sonosite, Inc.2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198910
199210
199430
199530
199750
199810
199950
200060
200150
200230
200320
200420
200610
200810
201010
201210
201310
201610
FIG. 1 — Lineage of K251106, 1995–2025Source: 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 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. #1 K240850 EPIQ Series Diagnostic Ultrasound Systems…score 32.1 · 24 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? (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
*K233597Sonosite LX Ultrasound System
Summary page 6
…Page 1 of 14 4) Predicate Device: Primary Predicate: Sonosite LX Ultrasound System (K233597) Reference: Sonosite PX Ultrasound System (K213763) 5) Device Description: The Sonosite LX an…
FUJIFILM Sonosite, Inc.2023—
†K213763Sonosite PX Ultrasound SystemFUJIFILM Sonosite, Inc.2021—

Also cleared against K233597: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

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 30 years and passes through 4 companies; a new generation was cleared every 1.3 years on median.
  • 13 of the 62 ancestors have a recall of any class.
  • 1 other device also cites its predicate K233597.

How does its category compare?

All IYN devices

IYN System, Imaging, Pulsed Doppler, Ultrasonic: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.

FDA decisions per year · IYN

57in 2025

2007: 132008: 252009: 182010: 292011: 392012: 432013: 512014: 562015: 542016: 602017: 642018: 592019: 472020: 572021: 462022: 532023: 442024: 502025: 572026 (partial year): 44
2007high 64 (2017) · low 13 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · IYN

124in 2025

2007: 26 days median2008: 18 days median2009: 29 days median2010: 67 days median2011: 46 days median2012: 37 days median2013: 60 days median2014: 39 days median2015: 55 days median2016: 56 days median2017: 83 days median2018: 85 days median2019: 79 days median2020: 72 days median2021: 105 days median2022: 105 days median2023: 115 days median2024: 119 days median2025: 124 days median2026 (partial year): 107 days median
2007high 124 (2025) · low 18 (2008)2026

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

Recalls per year · IYN

10in 2025

2007: 162008: 122009: 82010: 102011: 82012: 32013: 82014: 22015: 32016: 22018: 72020: 42021: 82022: 102023: 42024: 12025: 102026 (partial year): 2, 1 Class I
2007high 16 (2007) · low 0 (2017)2026

Class I (1 since 2007) Class II/III not classified

Adverse event reports per year · IYN

610in 2025

2007: 32008: 22009: 92010: 172011: 182012: 202013: 182014: 482015: 1162016: 1452017: 1462018: 852019: 592020: 672021: 2132022: 1862023: 2292024: 2662025: 610
2007high 610 (2025) · low 2 (2008)2025

MAUDE reports naming product code IYN, 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
20071326163
20082518122
2009182989
201029671017
20113946818
20124337320
20135160818
20145639248
201554553116
201660562145
201764830146
20185985785
20194779059
20205772467
2021461058213
20225310510186
2023441154229
2024501191266
20255712410610
2026441072 (1)—

What is it indicated for?

The Sonosite LX and Sonosite PX ultrasound systems are general purpose ultrasound systems 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: • Abdominal • Adult Cephalic • Neonatal Cephalic • Cardiac Adult • Cardiac Pediatric • Fetal - O8/GYN • Musculo-skeletal (Conventional) • Musculo-skeletal…

Read the full statement (244 words)

The Sonosite LX and Sonosite PX ultrasound systems are general purpose ultrasound systems 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:

• Abdominal

• Adult Cephalic

• Neonatal Cephalic

• Cardiac Adult

• Cardiac Pediatric

• Fetal - O8/GYN

• Musculo-skeletal (Conventional)

• Musculo-skeletal (Superficial)

• Ophthalmic

• Pediatric

• Peripheral vessel

• Small Organ (breast, thyroid, testicles, prostate)

• Transesophageal (cardiac)

• Transrectal

• Transvaginal

• Needle Guidance

Modes of operation include: B Mode (B), M-Mode (M) (including simultaneous M-mode and anatomical M-Mode), PW Doppler (PWD) (including High Pulse Repetition Frequency (HPRF) and simultaneous PWD for certain exam types), Tissue Doppler Imaging (TDI), Continuous Wave Doppler (CWD), Color Power Doppler, Velocity Color Doppler, Color Variance, Tissue Harmonic Imaging (THI), Multi-beam imaging, Steep Needle Profiling, Trapezoid, and combined modes, including duplex and triplex imaging: B+M, B +PWD, B+CWD, B+C, (B+C)+PWD, (B+C)+CWD.

This device is indicated for Prescription Use Only.

The Sonosite LX and Sonosite PX ultrasound systems are intended to be used in medical practices, clinical environments, including healthcare facilities, hospitals, clinics, and clinical point-of-care for diagnosis of patients.

The systems are used with a transducers attached and they are powered either by battery or by AC electrical power. The clinician is positioned next to the patient and places the transducer onto the patient's body where needed to obtain the desired ultrasound image.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K251106: Sonosite LX and Sonosite PX Ultrasound Systems.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K251106

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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