Devices descending from K940838
31 later devices reach Microvasive Ultraflex Esophageal Stent System through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K080782 | Niti-S Esophageal Stent | Taewoong Medical Co., Ltd. | 2009 | 15 | 1 |
| +1 | K073266 | Wallflex Partially Covered Esophageal Stent System | Boston Scientific Corp | 2008 | 15 | — |
| +1 | K012883 | Ultraflex Esophageal Stent System, Ultraflex Diamondbiliary Stent System, Ultraflex… | Boston Scientific Corp | 2001 | 21 | 46 |
| +2 | K243619 | Niti-S Esophageal Stent; Esophageal TTS Stent | Taewoong Medical Co., Ltd. | 2025 | 0 | — |
| +2 | K223266 | Hilzo Esophageal Stents | Thoracent, Inc. | 2024 | 0 | — |
| +2 | K211960 | Agile Esophageal OTW Stent System | Boston Scientific Corporation | 2021 | 2 | — |
| +2 | K180144 | Agile Esophageal Stent System | Boston Scientific Corporation | 2018 | 3 | — |
| +2 | K123205 | Esophageal TTS Stent | Taewoong Medical Co., Ltd. | 2013 | 9 | 1 |
| +2 | K121048 | Ultraflex Tracheobronchial Stent System- Sterile Uncovered | Boston Scientific Corp | 2012 | 5 | — |
| +2 | K113551 | Esophageal TTS Stent | Taewoong Medical Co., Ltd. | 2012 | 10 | 1 |
| +2 | K092144 | Bonastent Esophageal, Models BE and Ber, Bonastent Esophageal U.E.S. Flange and Flare… | Endochoice, Inc. | 2010 | 2 | — |
| +2 | K091510 | Wallflex Esophageal Fully Covered Stent System, Models M00516700, M00516710, M00516720… | Boston Scientific Corporation | 2009 | 14 | — |
| +2 | K072094 | Choostent | M.I.Tech Co., Ltd. | 2008 | 5 | — |
| +3 | K233939 | Ultraflex Esophageal NG Stent System; WallFlex Esophageal Stent System | Boston Scientific | 2024 | 1 | 22 |
| +3 | K233837 | Agile Esophageal Stent System | Boston Scientific Corporation | 2024 | 1 | 9 |
| +3 | K230269 | Ultraflex™ Tracheobronchial Stent System | Boston Scientific Corporation | 2023 | 0 | — |
| +3 | K221482 | Esophageal TTS Stent | Taewoong Medical Co., Ltd. | 2022 | 2 | — |
| +3 | K211706 | Esophageal TTS Stent | Taewoong Medical Co., Ltd. | 2021 | 3 | — |
| +3 | K200860 | HANAROSTENT Esophagus TTS (CCC), HANAROSTENT Esophagus TTS (NCN) | M.I.Tech Co., Ltd. | 2020 | 0 | — |
| +3 | K182910 | Segmented Esophageal Stent System | Micro-Tech (Nanjing) Co., Ltd. | 2019 | 0 | — |
| +3 | K172813 | Esophageal Stent System | Micro-Tech (Nanjing) Co., Ltd. | 2018 | 3 | — |
| +3 | K140472 | Bonastent Tracheal / Bronchial | Endochoice, Inc. | 2014 | 1 | — |
| +3 | K141584 | Ultraflex Tracheobronchial Covered Stent System | Boston Scientific Corporation | 2014 | 1 | 1 |
| +3 | K130004 | Ultraflex Esophageal NG Stent System | Boston Scientific Corporation | 2013 | 2 | — |
| +3 | K093537 | Hanarostent Esophagus (CCC) | M.I.Tech Co., Ltd. | 2010 | 0 | — |
| +4 | K261978 | WallFlex Esophageal Stent System;Agile Esophageal Over-the-Wire (OTW) Stent System | Boston Scientific Corporation | 2026 | 0 | — |
| +4 | K240522 | Esophageal TTS Stent | Taewoong Medical | 2024 | 1 | — |
| +4 | K201160 | HANAROSTENT Esophagus (CCC), HANAROSTENT Esophagus (NCN) | M.I.Tech Co., Ltd. | 2021 | 2 | — |
| +4 | K201342 | HANAROSTENT Trachea/Bronchium (CCC) | M.I.Tech Co., Ltd. | 2020 | 0 | — |
| +5 | K253327 | HANAROSTENT Esophagus Upper (CCC) | M.I.Tech Co., Ltd. | 2025 | 0 | — |
| +5 | K213251 | HANAROSTENT Esophagus Asymmetric (CCC) | M.I.Tech Co., Ltd. | 2021 | 0 | — |