Devices descending from K943404
44 later devices reach 3301 Pulse Oximeter through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K013171 | 3420 Digit Pulse Oximeter, Model 3420 | Bci, Inc. | 2002 | 43 | — |
| +2 | K043528 | Spirotel | Mir Medical Intl. Research Srl | 2005 | 42 | — |
| +3 | K130784 | Spirotel | Mir Medical Intl. Research Srl | 2013 | 0 | — |
| +3 | K061712 | Spirobank II | Mir Medical Intl. Research Srl | 2006 | 40 | — |
| +4 | K103530 | Spirodoc | Medical International Research USA, Inc. | 2011 | 4 | — |
| +4 | K081033 | Miroxi | Mir Medical Intl. Research Srl | 2009 | 0 | — |
| +4 | K072979 | Spirobank G | Mir Medical Intl. Research Srl | 2007 | 33 | — |
| +5 | K231416 | Air Next (NVD-02) | Nuvoair AB | 2024 | 0 | — |
| +5 | K230501 | Spirobank Oxi | Mir Medical International Research USA | 2023 | 0 | — |
| +5 | K201002 | Safey Pocket Spirometer | Safey Medical Devices Pvt, Ltd. | 2020 | 0 | — |
| +5 | K183089 | Air Next | Nuvoair AB | 2020 | 1 | — |
| +5 | K191272 | Wearable Device, Wearable Package | Current Health, Ltd. | 2019 | 16 | — |
| +5 | K170798 | Dictum Health | Dictum Health, Inc. | 2017 | 5 | — |
| +5 | K163249 | GoSpiro | Monitored Therapeutics, Inc. | 2017 | 2 | — |
| +5 | K141546 | Vitalograph Model 7000 Spirotrac | Vitalograph (Ireland), Ltd. | 2014 | 2 | — |
| +5 | K083879 | Innocor Ergospirometry System (INN00010), the Basic Innocor Including Breath-by-Breath… | Innovision A/S | 2009 | 2 | — |
| +6 | K241397 | Hinscope | Hinlab Sas | 2024 | 0 | — |
| +6 | K222525 | Alveoair Digital Spirometer | Roundworks Technologies Private Limited | 2023 | 0 | — |
| +6 | K213754 | SpiroHome Personal, SpiroHome Clinic | Inofab Saglik Teknolojileri A.S | 2023 | 0 | — |
| +6 | K213863 | Everion+ System | Biofourmis Singapore Pte., Ltd. | 2023 | 1 | — |
| +6 | K221282 | Empatica Health Monitoring Platform | Empatica S.r.l. | 2022 | 7 | — |
| +6 | K222550 | Current Health System | Current Health, Ltd. | 2022 | 1 | — |
| +6 | K210133 | Current Health Monitoring System Gen 2 (G2) | Current Health | 2021 | 8 | — |
| +6 | K202837 | GoSpiro | Monitored Therapeutics, Inc. | 2020 | 0 | — |
| +6 | K201562 | Spirotrac | Vitalograph Ireland, Ltd. | 2020 | 0 | — |
| +6 | K190561 | NICU V'02 | Cosmed Nordic Aps | 2020 | 0 | — |
| +6 | K192004 | Eko Analysis Software | Eko Devices, Inc. | 2020 | 4 | — |
| +6 | K142642 | Vitalograph Model 6600 Compact | Vitalograph (Ireland), Ltd. | 2015 | 0 | — |
| +6 | K102047 | Lci Option for Innocor | Innovision A/S | 2011 | 0 | 1 |
| +7 | K233418 | Biofourmis Everion+ (G2) | Biofourmis Singapore Pte., Ltd. | 2024 | 0 | — |
| +7 | K232548 | Corsano CardioWatch 287-2 System | Corsano Health B.V. | 2024 | 1 | — |
| +7 | K232915 | EpiMonitor | Empatica S.r.l. | 2024 | 1 | — |
| +7 | K230457 | Empatica Health Monitoring Platform; EmbracePlus; Empatica Care; Care Portal | Empatica S.r.l. | 2023 | 4 | — |
| +7 | K231506 | Current Health System | Current Health, Ltd. | 2023 | 0 | — |
| +7 | K213794 | Eko Murmur Analysis Software (EMAS) | Eko Devices, Inc. | 2022 | 3 | — |
| +8 | K260374 | Empatica Health Monitoring Platform for Parkinson's Disease Monitoring; EmbracePlus… | Empatica S.r.l. | 2026 | 0 | — |
| +8 | K261367 | Corsano CardioWatch 287-2 System | Corsano Health B.V. | 2026 | 0 | — |
| +8 | K252981 | EmbraceMini | Empatica S.r.l. | 2025 | 1 | — |
| +8 | K251494 | Eko Foundation Analysis Software with Transformers (EFAST) | Eko Health, Inc. | 2025 | 0 | — |
| +8 | K250515 | EpiMonitor | Empatica S.r.l. | 2025 | 0 | — |
| +8 | K242737 | Empatica Health Monitoring Platform; EmbracePlus; Empatica Care; Care Portal | Empatica S.r.l. | 2025 | 0 | — |
| +8 | K240236 | Happy Ring Health Monitoring System | Happy Health, Inc. | 2024 | 0 | — |
| +8 | K240901 | Stethophone | Sparrow Acoustics, Inc. | 2024 | 1 | — |
| +9 | K252595 | Stethophone Pro | Sparrow Acoustics, Inc. | 2025 | 0 | — |