Devices descending from K992414
27 later devices reach Proton Beam Therapy System (PBTS) through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K134052 | Radiance 330 Proton Therapy System | Protom International, Inc. | 2014 | 4 | — |
| +1 | K053280 | Probeat | Hitachi, Ltd., Power Systems Group | 2006 | 26 | — |
| +2 | K191521 | Radiance 330 Proton Beam Therapy System | Protom International Holding Corporation | 2019 | 2 | — |
| +2 | K160063 | McLaren Proton Therapy System | Mclaren Health Care Corporation | 2016 | 0 | — |
| +2 | K130426 | Sumitomo Proton Therapy System | Sumitomo Heavy Industries, Ltd. | 2013 | 1 | — |
| +2 | K120676 | S-250 Proton Beam Radiation Therapy System | Mevion Medical Systems | 2012 | 5 | 12 |
| +2 | K073059 | Probeat with Discrete Spot Scanning System | Hitachi, Ltd., Power Systems Group | 2007 | 16 | 1 |
| +2 | K060834 | Probeat with MGCS | Hitachi, Ltd. | 2006 | 17 | — |
| +3 | K221996 | P-Cure Proton Beam Therapy System | P-Cure, Ltd. | 2023 | 1 | — |
| +3 | K172848 | MEVION S250i Proton Beam Radiation Therapy Device | Mevion Medical Systems | 2017 | 2 | 5 |
| +3 | K160612 | Sumitomo Proton Therapy System | Sumitomo Heavy Industries, Ltd. | 2016 | 0 | — |
| +3 | K152224 | Proton Therapy System - Proteus 235 (Proteus One, Proteus Plus, Proteus TK2) | Ion Beam Application S.A. | 2016 | 4 | 7 |
| +3 | K152592 | Probeat-V | Hitachi, Ltd., Health Care Company | 2015 | 7 | 1 |
| +3 | K151132 | Probeat-V | Hitachi, Ltd., Health Care Company | 2015 | 10 | 1 |
| +4 | K250986 | S250-FIT Proton Beam Radiation Therapy Device (S250-FIT) | Mevion Medical Systems, Inc. | 2025 | 1 | — |
| +4 | K242418 | P-Cure Proton Therapy System (PPTS) | P-Cure, Ltd. | 2025 | 0 | — |
| +4 | K220883 | Small Field Applicator | Hitachi, Ltd. Radiation Oncology Systems, Kashiwanoha | 2022 | 0 | — |
| +4 | K191801 | Probeat-CR | Hitachi, Ltd. | 2019 | 3 | 1 |
| +4 | K181676 | Mini Ridge Filter and auxiliary functions for PROBEAT-V | Hitachi Ltd. Healthcare Hitachi Works | 2018 | 0 | — |
| +4 | K163500 | IBA Proton Therapy System- Proteus 235 (Proteus One, Proteus Plus, Proteus TK2, Proteus… | Ion Beam Applications S.A. | 2017 | 0 | 11 |
| +4 | K161163 | PROBEAT-V Proton Beam Therapy System with X-ray Limiting Accessory | Hitachi, Ltd. | 2016 | 0 | — |
| +4 | K153614 | PROBEAT-V and accessories | Hitachi, Ltd., Health Care Company | 2016 | 0 | — |
| +4 | K152207 | Extended Range Shifter for PROBEAT-V | Hitachi, Ltd., Health Care Company | 2015 | 0 | — |
| +5 | K253406 | S250-FIT Proton Beam Radiation Therapy Device (S250-FIT) | Mevion Medical Systems, Inc. | 2026 | 0 | — |
| +5 | K201042 | Probeat-CR | Hitachi, Ltd. | 2020 | 2 | 1 |
| +6 | K260174 | Probeat-CR | Hitachi High-Tech Corp. | 2026 | 0 | — |
| +6 | K232032 | Probeat-FR | Hitachi, Ltd. Radiation Oncology Systems, Kashiwanoha | 2024 | 0 | 4 |