510(k) · Cleared
ClearedYsio Max
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Siemens Medi Cal Solutions, Inc. · KPR System, X-Ray, Stationary
Cleared on Jun 13, 2018 as substantially equivalent to K133259 (Siemens Medical Solutions USA, Inc., 2014) after a 29-day review. Its family tree reaches back 10 generations to 1980. 3 later devices descend from it.
- Decided
- Jun 13, 2018
- Review
- 29 days
- Class
- Class II
- Product code
- KPR
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 10 generations to K801623 (1980). 65 ancestors in all. 3 later devices descend from it, 1 citing it directly.
- Root · 10 generations backK801623 Cavitron Ultrasonic Surg. Aspir. CusaCavitron Corp. · 1980
- 6 generations between
- 3 generations backK062623 Axiom Luminos DRFSiemens Medical Solutions USA, Inc. · 2007 · Recalled
- 2 generations backK081722 YSIOSiemens Medical Solutions USA, Inc. · 2008 · Recalled
- 1 generation backK133259 Ysio MaxSiemens Medical Solutions USA, Inc. · 2014 · Recalled
- This deviceK181279 Ysio MaxSiemens Medi Cal Solutions, Inc. · 2018
- Descendant · cites it directly · 2 of its ownK201670 YSIO X.preeSiemens Medical Solutions USA, Inc. · 2020 · Recalled
- Descendant · 2 generations on · 1 of its ownK233543 YSIO X.preeSiemens Medical Solutions · 2024
- Descendant · 3 generations on · 0 of its ownK250738 YSIO X.preeSiemens Medical Solutions · 2025
Show all 10 generations
- Root · 10 generations backK801623 Cavitron Ultrasonic Surg. Aspir. CusaCavitron Corp. · 1980
- 9 generations backK962952 Olympus Ultrasonic Surgical System (Usu)Olympus Optical, Co. · 1996
- 8 generations backK972114 Olympus Sonosurg SystemThe Olympus Optical Co. · 1998
- 7 generations backK981993 Olympus Integrated Endosurgery System EndoalphaThe Olympus Optical Co. · 1998
- 6 generations backK994231 Siemens Integrated Operating System (Sios)Siemens Medical Corp. · 2000
- 5 generations backK052202 Axiom Artis - Modular Angiographic SystemSiemens Medical Solutions USA, Inc. · 2006 · Recalled
- 4 generations backK061054 Axiom Aristos FX PlusSiemens Medical Solutions USA, Inc. · 2006 · Recalled
- 3 generations backK062623 Axiom Luminos DRFSiemens Medical Solutions USA, Inc. · 2007 · Recalled
- 2 generations backK081722 YSIOSiemens Medical Solutions USA, Inc. · 2008 · Recalled
- 1 generation backK133259 Ysio MaxSiemens Medical Solutions USA, Inc. · 2014 · Recalled
- This deviceK181279 Ysio MaxSiemens Medi Cal Solutions, Inc. · 2018
Most influential descendants
Showing 3 of 3 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −10 | K801623 | Cavitron Ultrasonic Surg. Aspir. Cusa | Cavitron Corp. | 1980 | — |
| −9 | K962952 | Olympus Ultrasonic Surgical System (Usu) | Olympus Optical, Co. | 1996 | — |
| −8 | K972114 | Olympus Sonosurg System | The Olympus Optical Co. | 1998 | — |
| −7 | K981993 | Olympus Integrated Endosurgery System Endoalpha | The Olympus Optical Co. | 1998 | — |
| −6 | K994231 | Siemens Integrated Operating System (Sios) | Siemens Medical Corp. | 2000 | — |
| −5 | K052202 | Axiom Artis - Modular Angiographic System | Siemens Medical Solutions USA, Inc. | 2006 | 29 |
| −4 | K061054 | Axiom Aristos FX Plus | Siemens Medical Solutions USA, Inc. | 2006 | 3 |
| −3 | K062623 | Axiom Luminos DRF | Siemens Medical Solutions USA, Inc. | 2007 | 20 |
| −2 | K081722 | YSIO | Siemens Medical Solutions USA, Inc. | 2008 | 11 |
| −1 | K133259 | Ysio Max | Siemens Medical Solutions USA, Inc. | 2014 | 7 |
| 0 (this device) | K181279 | Ysio Max | Siemens Medi Cal Solutions, Inc. | 2018 | — |
| +1 | K201670 | YSIO X.pree | Siemens Medical Solutions USA, Inc. | 2020 | 2 |
| +2 | K233543 | YSIO X.pree | Siemens Medical Solutions | 2024 | — |
| +3 | K250738 | YSIO X.pree | Siemens Medical Solutions | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1981 | 1 | 0 |
| 1986 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 13 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 0 |
| 2003 | 1 | 0 |
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2020 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 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 KPR? 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 KPR device
- #1 K242119 Innovision-Exiiscore 17.0 · 9 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 |
|---|---|---|---|
| * | K133259 | Ysio MaxSummary page 5…21 CFR §892.1680 Device Class: II Product Codes: KPR 4. Legally Marketed Predicate Device: Trade Name: Ysio Max 510(k) Number: K133259 Device Classification Name: Stationary x-ray System Regulation Medical Specialty: Radiology Review Panel: Radiology P… | 2014 |
| † | K173639 | Luminos dRF Max, Luminos Agile Max, Uroskop Omnia Max, Multitom Rax | 2018 |
What descends from it? (3)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K201670 | YSIO X.pree | 2020 | 2 |
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 38 years and passes through 6 companies; a new generation was cleared every 2.0 years on median.
- 20 of the 65 ancestors have a recall of any class.
- Of its descendants, K201670 (Siemens Medical Solutions USA, Inc., 2020) has gone furthest, with 2 descendants of its own.
- 1 other device also cites its predicate K133259.
How does its category compare?
All KPR devicesKPR System, X-Ray, Stationary: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.
FDA decisions per year · KPR
8in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · KPR
155in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · KPR
7in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KPR
39in 2025
MAUDE reports naming product code KPR, 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 | 12 | 31 | 10 | 120 |
| 2008 | 15 | 48 | 10 | 95 |
| 2009 | 9 | 35 | 5 | 61 |
| 2010 | 9 | 126 | 3 | 82 |
| 2011 | 9 | 152 | 5 | 103 |
| 2012 | 11 | 58 | 1 | 74 |
| 2013 | 5 | 163 | 5 | 24 |
| 2014 | 10 | 108 | 8 | 34 |
| 2015 | 18 | 81 | 1 | 59 |
| 2016 | 11 | 84 | 4 | 18 |
| 2017 | 6 | 75 | 3 | 31 |
| 2018 | 15 | 30 | 4 | 36 |
| 2019 | 12 | 33 | 1 | 77 |
| 2020 | 16 | 39 | 1 | 41 |
| 2021 | 6 | 55 | 0 | 37 |
| 2022 | 8 | 43 | 2 | 27 |
| 2023 | 9 | 76 | 4 | 39 |
| 2024 | 11 | 162 | 1 | 34 |
| 2025 | 8 | 155 | 7 | 39 |
| 2026 | 6 | 197 | 0 | — |
What is it indicated for?
Ysio Max is a device intended to visualize anatomical structures by converting an X-ray pattern into a visible image. Ysio Max enables radiographic and tomographic exposures of the whole body and may be used on pediatric, adult and bariatric patients. It can also be used for emergency applications.
Ysio Max is not for mammography examinations.
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/K181279 · printed Nov 6, 2026
Cite this page
510(k) Report. “K181279: Ysio Max.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K181279
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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