Devices descending from K821568
5 later devices reach Blow-Singer Tracheostoma Valve through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K043138 | Provox Nid Voice Rehabilitation System, Model Ref 7101 to 7134 | Atos Medical AB | 2004 | 0 | — |
| +1 | K022125 | Provox Freehands Hme, Model 7710 | Atos Medical AB | 2002 | 2 | — |
| +1 | K013728 | Trach Vox | Engineered Medical Systems | 2002 | 0 | — |
| +2 | K141380 | Provox Freehands Flexivoice | Atos Medical AB | 2014 | 0 | — |
| +2 | K072582 | Provox Micron Hme | Atos Medical AB | 2008 | 0 | — |