510(k) · Cleared
ClearedLIAC S
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Sit Sordina Iort Technologies Spa · IYE Accelerator, Linear, Medical
Cleared on May 22, 2019 as substantially equivalent to K172961 (Sit Sordina Iort Technologies Spa, 2018) after a 264-day review. Its family tree reaches back 5 generations to 1985.
- Decided
- May 22, 2019
- Review
- 264 days
- Class
- Class II
- Product code
- IYE
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 5 generations to K852907 (1985). 6 ancestors in all. No later device cites it as a predicate yet.
- Root · 5 generations backK852907 Siemens Mevatron MESiemens Medical Laboratories, Inc. · 1985
- 4 generations backK981112 MobetronIntraop Medical, Inc. · 1998 · Recalled
- 3 generations backK990209 NOVAC7Hitesys S.P.A. · 2000
- 2 generations backK112286 NOVAC 11New Radiant Technology S.P.A. · 2012
- 1 generation backK172961 Liac HWLSit Sordina Iort Technologies Spa · 2018
- This deviceK182374 LIAC SSit Sordina Iort Technologies Spa · 2019
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K852907 | Siemens Mevatron ME | Siemens Medical Laboratories, Inc. | 1985 | — |
| −4 | K981112 | Mobetron | Intraop Medical, Inc. | 1998 | 1 |
| −3 | K990209 | NOVAC7 | Hitesys S.P.A. | 2000 | — |
| −2 | K112286 | NOVAC 11 | New Radiant Technology S.P.A. | 2012 | — |
| −1 | K172961 | Liac HWL | Sit Sordina Iort Technologies Spa | 2018 | — |
| 0 (this device) | K182374 | LIAC S | Sit Sordina Iort Technologies Spa | 2019 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2012 | 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 IYE? 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 IYE device
- #1 K252977 Halcyon, Ethos Radiotherapy System (5.0)score 18.8 · 18 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 |
|---|---|---|---|
| * | K172961 | Liac HWLSummary page 5…tantially equivalent to the following predicate device, which is legally marketed in the US. SIT SORDINA 10 TECHNOLOGIES SPA. LIAC S and its predicate device LIAC HWL (K172961) are both electron linear accelerators used for radiation therapy during surgical procedures in an operating room and they are bo… | 2018 |
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 34 years and passes through 5 companies; a new generation was cleared every 6.1 years on median.
- 1 of the 6 ancestors has a recall of any class.
How does its category compare?
All IYE devicesIYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.
FDA decisions per year · IYE
12in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · IYE
170in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · IYE
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · IYE
101in 2025
MAUDE reports naming product code IYE, 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 | 23 | 44 | 78 | 155 |
| 2008 | 14 | 69 | 49 | 114 |
| 2009 | 20 | 63 | 22 | 174 |
| 2010 | 23 | 74 | 27 | 246 |
| 2011 | 11 | 94 | 73 | 280 |
| 2012 | 28 | 106 | 20 | 128 |
| 2013 | 18 | 88 | 11 | 96 |
| 2014 | 20 | 100 | 14 | 124 |
| 2015 | 20 | 108 | 8 | 100 |
| 2016 | 21 | 97 | 7 | 97 |
| 2017 | 23 | 94 | 7 | 125 |
| 2018 | 21 | 58 | 7 | 85 |
| 2019 | 19 | 83 | 2 | 91 |
| 2020 | 20 | 67 | 4 | 74 |
| 2021 | 19 | 86 | 5 | 68 |
| 2022 | 12 | 172 | 3 | 66 |
| 2023 | 18 | 129 | 7 | 128 |
| 2024 | 9 | 239 | 1 | 81 |
| 2025 | 12 | 170 | 1 | 101 |
| 2026 | 14 | 120 | 4 | — |
What is it indicated for?
LIAC S is mobile electron linear accelerator for intra-operative radiotherapy (IORT). Known as intraoperative radiation therapy (IORT), this technique allows delivery of high doses of radiation directly aimed at tumors or other sites. The LIAC S is meant to be used for radiotherapy in the operating theatre on a patient to which the surgeon has just removed a neoplasm. The devices must be sold by or on the order of a physician. The device is not for use…
Read the full statement (120 words)
LIAC S is mobile electron linear accelerator for intra-operative radiotherapy (IORT). Known as intraoperative radiation therapy (IORT), this technique allows delivery of high doses of radiation directly aimed at tumors or other sites.
The LIAC S is meant to be used for radiotherapy in the operating theatre on a patient to which the surgeon has just removed a neoplasm.
The devices must be sold by or on the order of a physician. The device is not for use by the general public or over-the-counter.
LIAC S is an electron accelerator that can work in an operating theatre respecting its specific characteristics in terms of cleaning possibility, noise and heat dissipation; in particular, they do not require to move the patient.
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/K182374 · printed Nov 5, 2026
Cite this page
510(k) Report. “K182374: LIAC S.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K182374
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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