510(k) · Cleared
ClearedAcclarix AX4 Diagnostic Ultrasound System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Edan Instruments, Inc. · IYN System, Imaging, Pulsed Doppler, Ultrasonic
Cleared on Aug 18, 2017 as substantially equivalent to K171824 (Edan Instruments, Inc., 2017) after a 53-day review. Its family tree reaches back 25 generations to 1995. 2 later devices descend from it.
- Decided
- Aug 18, 2017
- Review
- 53 days
- Class
- Class II
- Product code
- IYN
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 25 generations to K935595 (1995). 220 ancestors in all, the oldest K852159 (1985). 2 later devices descend from it, 1 citing it directly.
- Root · 25 generations backK935595 Acuson Model 3001Acuson Corp. · 1995
- 21 generations between
- 3 generations backK150080 DC-8/DC-8 Pro/DC-8 CV/DC-8 Exp/DC-8SShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2015
- 2 generations backK162055 Acclarix LX8 Diagnostic Ultrasound SystemEdan Instruments, Inc. · 2017
- 1 generation backK171824 Acclarix AX8 Diagnostic Ultrasound System, Acclarix LX8 Diagnostic…Edan Instruments, Inc. · 2017
- This deviceK171900 Acclarix AX4 Diagnostic Ultrasound SystemEdan Instruments, Inc. · 2017
- Descendant · cites it directly · 1 of its ownK192791 Diagnostic Ultrasound SystemEdan Instruments, Inc. · 2019
- Descendant · 2 generations on · 0 of its ownK202856 Diagnostic Ultrasound System, Models: Acclarix AX3, Acclarix AX3…Edan Instruments, Inc. · 2021
Show all 25 generations
- Root · 25 generations backK935595 Acuson Model 3001Acuson Corp. · 1995
- 24 generations backK973767 Harmonic Imaging with ContrastAcuson Corp. · 1997
- 23 generations backK022567 Sequoia Signature II Diagnostic Ultrasound SystemAcuson Corp. · 2002
- 22 generations backK032111 Acuson CV70 Cardiovascular SystemSiemens Medical Solutions USA, Inc. · 2003 · Recalled
- 21 generations backK040060 Sonoline G50 and G60 S Diagnostic Ultrasound SystemsSiemens Medical Solutions USA, Inc. · 2004
- 20 generations backK043078 Nemio Diagnostic Ultrasound System, Model Ssa-550AToshiba America Medical Systems, In.C · 2004 · Recalled
- 19 generations backK051500 Famio Diagnostic Ultrasound Systems, Model Ssa-530AToshiba America Medical Systems, In.C · 2005
- 18 generations backK053346 Modification to: DP-9900 Digital Ultrasonic Diagnostic Imaging…Shenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2005
- 17 generations backK061189 DP-9900 Digital Ultrasonic Diagnostic Imaging SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2006
- 16 generations backK063500 DC-6 Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2006
- 15 generations backK072164 DC-6 Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2007
- 14 generations backK080640 M5 Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2008
- 13 generations backK081320 DC-3, DC-3T Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2008
- 12 generations backK083505 DC-3/DC-3T Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2008
- 11 generations backK091941 DC-3/DC-3T Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2009
- 10 generations backK092691 DC-7 Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2009
- 9 generations backK101041 DC-7 Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2010
- 8 generations backK103583 DC-7 Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2010
- 7 generations backK113647 DC-8/DC-8 Pro/DC-8 CV/DC-8 Exp/DC-8S Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2011
- 6 generations backK121010 M7/M7T Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2012
- 5 generations backK131690 M7/M7T Diagnostic Ultrasound SystemShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2013
- 4 generations backK141010 M9 Diagnostic Ultrasound System, M9T Diagnostic Ultrasound System…Shenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2014
- 3 generations backK150080 DC-8/DC-8 Pro/DC-8 CV/DC-8 Exp/DC-8SShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2015
- 2 generations backK162055 Acclarix LX8 Diagnostic Ultrasound SystemEdan Instruments, Inc. · 2017
- 1 generation backK171824 Acclarix AX8 Diagnostic Ultrasound System, Acclarix LX8 Diagnostic…Edan Instruments, Inc. · 2017
- This deviceK171900 Acclarix AX4 Diagnostic Ultrasound SystemEdan Instruments, Inc. · 2017
Most influential descendants
Showing 2 of 2 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −25 | K935595 | Acuson Model 3001 | Acuson Corp. | 1995 | — |
| −24 | K973767 | Harmonic Imaging with Contrast | Acuson Corp. | 1997 | — |
| −23 | K022567 | Sequoia Signature II Diagnostic Ultrasound System | Acuson Corp. | 2002 | — |
| −22 | K032111 | Acuson CV70 Cardiovascular System | Siemens Medical Solutions USA, Inc. | 2003 | 1 |
| −21 | K040060 | Sonoline G50 and G60 S Diagnostic Ultrasound Systems | Siemens Medical Solutions USA, Inc. | 2004 | — |
| −20 | K043078 | Nemio Diagnostic Ultrasound System, Model Ssa-550A | Toshiba America Medical Systems, In.C | 2004 | 1 |
| −19 | K051500 | Famio Diagnostic Ultrasound Systems, Model Ssa-530A | Toshiba America Medical Systems, In.C | 2005 | — |
| −18 | K053346 | Modification to: DP-9900 Digital Ultrasonic Diagnostic Imaging System, Model… | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2005 | — |
| −17 | K061189 | DP-9900 Digital Ultrasonic Diagnostic Imaging System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2006 | — |
| −16 | K063500 | DC-6 Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2006 | — |
| −15 | K072164 | DC-6 Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2007 | — |
| −14 | K080640 | M5 Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2008 | — |
| −13 | K081320 | DC-3, DC-3T Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2008 | — |
| −12 | K083505 | DC-3/DC-3T Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2008 | — |
| −11 | K091941 | DC-3/DC-3T Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2009 | — |
| −10 | K092691 | DC-7 Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2009 | — |
| −9 | K101041 | DC-7 Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2010 | — |
| −8 | K103583 | DC-7 Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2010 | — |
| −7 | K113647 | DC-8/DC-8 Pro/DC-8 CV/DC-8 Exp/DC-8S Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2011 | — |
| −6 | K121010 | M7/M7T Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2012 | — |
| −5 | K131690 | M7/M7T Diagnostic Ultrasound System | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2013 | — |
| −4 | K141010 | M9 Diagnostic Ultrasound System, M9T Diagnostic Ultrasound System, M9CV… | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2014 | — |
| −3 | K150080 | DC-8/DC-8 Pro/DC-8 CV/DC-8 Exp/DC-8S | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2015 | — |
| −2 | K162055 | Acclarix LX8 Diagnostic Ultrasound System | Edan Instruments, Inc. | 2017 | — |
| −1 | K171824 | Acclarix AX8 Diagnostic Ultrasound System, Acclarix LX8 Diagnostic Ultrasound… | Edan Instruments, Inc. | 2017 | — |
| 0 (this device) | K171900 | Acclarix AX4 Diagnostic Ultrasound System | Edan Instruments, Inc. | 2017 | — |
| +1 | K192791 | Diagnostic Ultrasound System | Edan Instruments, Inc. | 2019 | — |
| +2 | K202856 | Diagnostic Ultrasound System, Models: Acclarix AX3, Acclarix AX3 Exp, Acclarix… | Edan Instruments, Inc. | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1985 | 1 | 0 |
| 1987 | 1 | 0 |
| 1989 | 1 | 0 |
| 1992 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 3 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 13 | 0 |
| 2002 | 11 | 0 |
| 2003 | 13 | 0 |
| 2004 | 17 | 0 |
| 2005 | 15 | 0 |
| 2006 | 13 | 0 |
| 2007 | 10 | 0 |
| 2008 | 9 | 0 |
| 2009 | 10 | 0 |
| 2010 | 8 | 0 |
| 2011 | 10 | 0 |
| 2012 | 7 | 0 |
| 2013 | 4 | 0 |
| 2015 | 2 | 0 |
| 2016 | 2 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2019 | 1 | 0 |
| 2021 | 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 |
|---|---|---|---|
| * | K171824 | Acclarix AX8 Diagnostic Ultrasound System, Acclarix LX8 Diagnostic Ultrasound System Cleared while this submission was under review Summary page 13…Class III Certification and Summary Edan Instruments, Inc., Acclarix AX8 Diagnostic Ultrasound System 4. Predicate cleared under K171824 (Predicate) Device(s): By submission of the Traditional 510(k), Edan Instruments is requesting for 5. Reaso… | 2017 |
What descends from it? (2)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K192791 | Diagnostic Ultrasound System | 2019 | 1 |
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 5 companies; a new generation was cleared every 7 months on median.
- 54 of the 220 ancestors have a recall of any class.
- Of its descendants, K192791 (Edan Instruments, Inc., 2019) has gone furthest, with 1 descendant of its own.
- 1 other device also cites its predicate K171824.
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. 2017, 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 Edan AX4 Ultrasound system is intended for use by a qualified physician or allied health professional for ultrasound
evaluations. Specific clinical applications include:
• Abdominal
• Gynecology (including endovaginal)
• Obstetric
• Cardiac
• Small parts (Breast, Testes, Thyroid, etc.)
• Urology
• Musculoskeletal
• Peripheral vascular
• Intra-operative
• Pediatric
• Neonatal (including abdominal and cephalic)
• Adult Cephalic
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K171900 · printed Nov 6, 2026
Cite this page
510(k) Report. “K171900: Acclarix AX4 Diagnostic 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/K171900
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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