510(k) · Cleared
ClearedGating Reflector Block
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Varian Medical Systems, Inc. · JAK System, X-Ray, Tomography, Computed
Cleared on Nov 21, 2024 as substantially equivalent to K213927 (Varian Medical Systems, Inc., 2022) after a 59-day review. Its family tree reaches back 6 generations to 1987.
- Decided
- Nov 21, 2024
- Review
- 59 days
- Class
- Class II
- Product code
- JAK
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 6 generations to K864886 (1987). No later device cites it as a predicate yet.
- Root · 6 generations backK864886 Respigraph-Respisomnograph-RespicentralNims/Respitrace Corp. · 1987
- 5 generations backK983629 RPM Respiratory Gating SystemVarian Medical Systems, Inc. · 1999
- 4 generations backK063270 RPM Respiratory Gating SystemVarian Medical Systems, Inc. · 2006 · Recalled
- 3 generations backK102024 RPM Respiratory Gating SystemVarian Medical Systems · 2010 · Recalled
- 2 generations backK151533 Respiratory Gating for ScannersVarian Medical Systems, Inc. · 2015
- 1 generation backK213927 Respiratory Gating for Scanners v2.0Varian Medical Systems, Inc. · 2022
- This deviceK242874 Gating Reflector BlockVarian Medical Systems, Inc. · 2024
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −6 | K864886 | Respigraph-Respisomnograph-Respicentral | Nims/Respitrace Corp. | 1987 | — |
| −5 | K983629 | RPM Respiratory Gating System | Varian Medical Systems, Inc. | 1999 | — |
| −4 | K063270 | RPM Respiratory Gating System | Varian Medical Systems, Inc. | 2006 | 1 |
| −3 | K102024 | RPM Respiratory Gating System | Varian Medical Systems | 2010 | 1 |
| −2 | K151533 | Respiratory Gating for Scanners | Varian Medical Systems, Inc. | 2015 | — |
| −1 | K213927 | Respiratory Gating for Scanners v2.0 | Varian Medical Systems, Inc. | 2022 | — |
| 0 (this device) | K242874 | Gating Reflector Block | Varian Medical Systems, Inc. | 2024 | — |
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? (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 |
|---|---|---|---|
| * | K213927 | Respiratory Gating for Scanners v2.0Summary page 5…Product Code: JAK Common name: System, X-ray, Tomography, Computed III. Predicate Device Proprietary Name: Respiratory Gating for Scanners v2.0 (K213927) (Gating Reflector Block is listed as a required accessory of RGSC v2.0) Regulation Number: §892.1750 Cla… | 2022 |
| † | K213977 | TrueBeam, TrueBeam STx, Edge, VitalBeam | 2022 |
| † | K102024 | RPM Respiratory Gating System | 2010 |
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 37 years and passes through 3 companies; a new generation was cleared every 6.4 years on median.
- 2 of the 6 ancestors have a recall of any class.
- 1 other device also cites its predicate K213927.
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?
The Gating Reflector Block is an accessory medical device indicated for adult and pediatric patients undergoing radiotherapy treatment simulation and/or delivery. GRB is a reusable device indicated for monitoring patient motion including respiratory patterns.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K242874 · printed Nov 5, 2026
Cite this page
510(k) Report. “K242874: Gating Reflector Block.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K242874
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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