Devices descending from K121955
14 later devices reach Coughassist T70 Device through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K242438 | Clearo | Breas Medical AB | 2025 | 0 | — |
| +1 | K191912 | BiWaze Cough | Abmrc, LLC | 2020 | 0 | — |
| +1 | K162877 | VOCSN Unified Respiratory System | Ventec Life Systems, Inc. | 2017 | 6 | Class I |
| +1 | K140598 | Pegaso Cough, Pegaso a-Cough, Pegaso a-Cough Perc | Dima Italia Srl | 2014 | 1 | — |
| +1 | K140605 | Minipegaso Cough, Minipegaso a-Cough, Minipegaso a-Coug Perc | Dima Italia Srl | 2014 | 0 | — |
| +1 | K122111 | Respironics Simplyclear Device | Respironics, Inc. | 2012 | 4 | — |
| +2 | K253001 | KT Airway Clearance Device II (KT-3); KT Airway Clearance Device II (KT-5) | Hunan Ruijiong Biotech Co., Ltd. | 2026 | 0 | — |
| +2 | K241091 | SIMEOX 200 Airway Clearance Device | Inogen, Inc. | 2024 | 0 | — |
| +2 | K181166 | Trilogy Evo | Respironics, Inc. | 2019 | 5 | Class I |
| +3 | K232365 | Vivo 45 LS | Oconnell Regulatory Consultants, Inc. | 2025 | 0 | — |
| +3 | K241135 | RESPOND (R) Ventilator | Corvent Medical, Inc. | 2024 | 0 | — |
| +3 | K240807 | VM-2000 | Ventis Medical, Inc. | 2024 | 0 | — |
| +3 | K193586 | Vivo 45 LS | Breas Medical AB | 2021 | 2 | Class I |
| +4 | K233452 | Vivo 45 LS | Breas Medical AB | 2025 | 0 | 1 |