510(k) · Cleared
ClearedSOMATOM On.site
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Siemens Medical Solutions USA, Inc. · JAK System, X-Ray, Tomography, Computed
Cleared on Sep 3, 2024 as substantially equivalent to K193277 (Siemens Medical Solutions USA, Inc., 2020) and 1 other predicate after a 118-day review. Its family tree reaches back 16 generations to 2001.
- Decided
- Sep 3, 2024
- Review
- 118 days
- Class
- Class II
- Product code
- JAK
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 16 generations to K013561 (2001). 123 ancestors in all, the oldest K801623 (1980). No later device cites it as a predicate yet.
- Root · 16 generations backK013561 Lightspeed 4.0 CT Scanner SystemGE Medical Systems · 2001 · Recalled
- 12 generations between
- 3 generations backK200524 SOMATOM X.cite, Scan&GO, SOMATOM go.Platform - go.Up, go.Now…Siemens Medical Solutions USA, Inc. · 2020 · Recalled
- 2 generations backK211373 SOMATOM go.Platform Scanners - SOMATOM go.Now, go.Up, go.All…Siemens Medical Solutions USA, Inc. · 2021 · Recalled
- 1 generation backK233650 SOMATOM go.Up; SOMATOM go.Now; SOMATOM go.All; SOMATOM go.Top…Siemens Medical Solutions USA, Inc. · 2024 · Recalled
- This deviceK241295 SOMATOM On.siteSiemens Medical Solutions USA, Inc. · 2024
Show all 16 generations
- Root · 16 generations backK013561 Lightspeed 4.0 CT Scanner SystemGE Medical Systems · 2001 · Recalled
- 15 generations backK030420 Lightspeed 5.0 Computed Tomography SystemGE Medical Systems · 2003 · Recalled
- 14 generations backK040372 Lightspeed 7.0 CT Scanner SystemGe Medical Systems, LLC · 2004 · Recalled
- 13 generations backK052216 Somatom DefinitionSiemens Medical Systems, Inc. · 2005
- 12 generations backK082220 Somatom Flash DSSiemens Medical Solutions USA, Inc. · 2008
- 11 generations backK113342 Somatom Definition FlashSiemens Medical Systems, Inc. · 2011 · Recalled
- 10 generations backK121072 Somatom Definition FlashSiemens Medical Systems, Inc. · 2012 · Recalled
- 9 generations backK133589 Somatom ForceSiemens Medical Solutions USA, Inc. · 2014 · Recalled
- 8 generations backK142955 SOMATOM Force, SOMATOM Definition Flash, SOMATOM Definition Edge…Siemens Medical Solutions USA, Inc. · 2015 · Recalled
- 7 generations backK161196 SOMATOM DriveSiemens Medical Solutions USA, Inc. · 2016 · Recalled
- 6 generations backK163296 SOMATOM go.Up, SOMATOM go.NowSiemens Medical Solutions USA, Inc. · 2017 · Recalled
- 5 generations backK173632 SOMATOM go.Up, SOMATOM go.Now, SOMATOM go.Top, SOMATOM go.All, Scan&GOSiemens Medical Solutions USA, Inc. · 2018 · Recalled
- 4 generations backK191891 SOMATOM X.citeSiemens Medical Solutions USA, Inc. · 2019
- 3 generations backK200524 SOMATOM X.cite, Scan&GO, SOMATOM go.Platform - go.Up, go.Now…Siemens Medical Solutions USA, Inc. · 2020 · Recalled
- 2 generations backK211373 SOMATOM go.Platform Scanners - SOMATOM go.Now, go.Up, go.All…Siemens Medical Solutions USA, Inc. · 2021 · Recalled
- 1 generation backK233650 SOMATOM go.Up; SOMATOM go.Now; SOMATOM go.All; SOMATOM go.Top…Siemens Medical Solutions USA, Inc. · 2024 · Recalled
- This deviceK241295 SOMATOM On.siteSiemens Medical Solutions USA, Inc. · 2024
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −16 | K013561 | Lightspeed 4.0 CT Scanner System | GE Medical Systems | 2001 | 5 |
| −15 | K030420 | Lightspeed 5.0 Computed Tomography System | GE Medical Systems | 2003 | 4 |
| −14 | K040372 | Lightspeed 7.0 CT Scanner System | Ge Medical Systems, LLC | 2004 | 5 |
| −13 | K052216 | Somatom Definition | Siemens Medical Systems, Inc. | 2005 | — |
| −12 | K082220 | Somatom Flash DS | Siemens Medical Solutions USA, Inc. | 2008 | — |
| −11 | K113342 | Somatom Definition Flash | Siemens Medical Systems, Inc. | 2011 | 1 |
| −10 | K121072 | Somatom Definition Flash | Siemens Medical Systems, Inc. | 2012 | 5 |
| −9 | K133589 | Somatom Force | Siemens Medical Solutions USA, Inc. | 2014 | 9 |
| −8 | K142955 | SOMATOM Force, SOMATOM Definition Flash, SOMATOM Definition Edge, SOMATOM… | Siemens Medical Solutions USA, Inc. | 2015 | 16 |
| −7 | K161196 | SOMATOM Drive | Siemens Medical Solutions USA, Inc. | 2016 | 4 |
| −6 | K163296 | SOMATOM go.Up, SOMATOM go.Now | Siemens Medical Solutions USA, Inc. | 2017 | 6 |
| −5 | K173632 | SOMATOM go.Up, SOMATOM go.Now, SOMATOM go.Top, SOMATOM go.All, Scan&GO | Siemens Medical Solutions USA, Inc. | 2018 | 18 |
| −4 | K191891 | SOMATOM X.cite | Siemens Medical Solutions USA, Inc. | 2019 | — |
| −3 | K200524 | SOMATOM X.cite, Scan&GO, SOMATOM go.Platform - go.Up, go.Now, go.Top, go.All… | Siemens Medical Solutions USA, Inc. | 2020 | 7 |
| −2 | K211373 | SOMATOM go.Platform Scanners - SOMATOM go.Now, go.Up, go.All, go.Top, SOMATOM… | Siemens Medical Solutions USA, Inc. | 2021 | 3 |
| −1 | K233650 | SOMATOM go.Up; SOMATOM go.Now; SOMATOM go.All; SOMATOM go.Top; SOMATOM go.Sim… | Siemens Medical Solutions USA, Inc. | 2024 | 1 |
| 0 (this device) | K241295 | SOMATOM On.site | Siemens Medical Solutions USA, Inc. | 2024 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1986 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 14 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 0 |
| 2003 | 2 | 0 |
| 2004 | 4 | 0 |
| 2005 | 3 | 0 |
| 2006 | 4 | 0 |
| 2007 | 2 | 0 |
| 2008 | 2 | 0 |
| 2011 | 2 | 0 |
| 2012 | 3 | 0 |
| 2014 | 4 | 0 |
| 2015 | 5 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 2 | 0 |
| 2019 | 2 | 0 |
| 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 JAK? 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 JAK device
- #1 K230223 iCAC Devicescore 23.5 · 12 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (2)
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 |
|---|---|---|---|
| * | K193277 | SOMATOM On.site and On.sceneSummary page 6…predicate device: Trade Name: SOMATOM On. CT scanner systems (with SOMARIS/10 syngo CT VA35 software) 510(k) Number: K193277 Clearance Date: July 22, 2020 Classification Name: Computed Tomography X-ray System Classification Panel: R… | 2020 |
| * | K233650 | SOMATOM go.Up; SOMATOM go.Now; SOMATOM go.All; SOMATOM go.Top; SOMATOM go.Sim; SOMATOM…Summary page 6…design. Secondary predicate device: Trade Name: SOMATOM go.Up (with SOMARIS/10 syngo CT VB10 software) 510(k) Number: K233650 Clearance Date: March 26, 2024 Classification Name: Computed Tomography X-ray System Classification Panel: Rad… | 2024 |
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 23 years and passes through 4 companies; a new generation was cleared every 1.4 years on median.
- 60 of the 123 ancestors have a recall of any class.
How does its category compare?
All JAK devicesJAK System, X-Ray, Tomography, Computed: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.
FDA decisions per year · JAK
27in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · JAK
141in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · JAK
17in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · JAK
219in 2025
MAUDE reports naming product code JAK, 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 | 14 | 27 | 11 | 76 |
| 2008 | 26 | 42 | 16 | 120 |
| 2009 | 15 | 31 | 29 | 105 |
| 2010 | 7 | 92 | 51 | 119 |
| 2011 | 16 | 155 | 34 | 205 |
| 2012 | 28 | 121 | 23 | 192 |
| 2013 | 17 | 132 | 11 | 414 |
| 2014 | 30 | 200 | 10 | 308 |
| 2015 | 30 | 140 | 28 | 454 |
| 2016 | 25 | 129 | 44 | 365 |
| 2017 | 29 | 96 | 33 | 338 |
| 2018 | 24 | 114 | 10 | 543 |
| 2019 | 28 | 94 | 5 | 233 |
| 2020 | 30 | 112 | 8 | 177 |
| 2021 | 20 | 145 | 15 | 261 |
| 2022 | 30 | 131 | 9 | 199 |
| 2023 | 27 | 139 | 9 | 310 |
| 2024 | 26 | 141 | 20 | 212 |
| 2025 | 27 | 141 | 17 | 219 |
| 2026 | 21 | 167 | 23 | — |
What is it indicated for?
This computed tomography system is intended to generate and process cross-sectional images by computed reconstruction of x-ray transmission data within a 26 cm field-of-view, for the head and neck.
The images delivered by the system can be used by a trained staff as an aid in diagnosis.
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/K241295 · printed Nov 6, 2026
Cite this page
510(k) Report. “K241295: SOMATOM On.site.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K241295
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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