Devices descending from K111821
9 later devices reach Biopsy Valve through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K152140 | Boa Endoscopic Valve | C2 Therapeutics, Inc. | 2015 | 1 | — |
| +1 | K133734 | Seal Single-Use Biopsy Valve | Endochoice, Inc. | 2014 | 4 | — |
| +1 | K132776 | Seal Biopsy Valve - Reusable | Endochoice, Inc. | 2013 | 0 | — |
| +1 | K122417 | Scopevalet Disposable Biopsy Valve | The Ruhof Corp. | 2013 | 0 | — |
| +2 | K193036 | C2 CryoBalloon EndoGrip | Pentax Medical, A Division of Pentax of America, Inc. | 2019 | 0 | — |
| +2 | K161167 | Seal Single-Use Biopsy Valve | Endochoice, Inc. | 2016 | 3 | — |
| +3 | K182275 | Seal Single Use Biopsy Valve | Boston Scientific Corporation | 2018 | 1 | — |
| +3 | K173758 | Disposable Biopsy Valve | Zhejiang Chuangxiang Medical Technology Co., Ltd. | 2018 | 0 | — |
| +4 | K251997 | Single-Use Biopsy Valve (MAJ-1555) | Olympus Medical Systems Corporation | 2025 | 0 | — |