Devices descending from K852608
32 later devices reach Spectra 400 Extended Surveillance & Alert System through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K993008 | Quantitative Sentinel System | Marquette Medical Systems, Inc. | 1999 | 9 | 3 |
| +1 | K991905 | Corometrics Model 171 and 172 Fetal Monitor | General Electric Medical Systems Information Techn | 1999 | 16 | — |
| +1 | K991739 | Corometrics 120 Series Maternal/Fetal Monitor | General Electric Medical Systems Information Techn | 1999 | 10 | — |
| +1 | K963608 | Quantitative Sentinel System | Quantitative Medicine, Inc. | 1997 | 10 | — |
| +2 | K100797 | Fetal Maternal Monitor Model F9 Express and Express | Edan Instruments, Inc. | 2010 | 5 | — |
| +2 | K082602 | Fetal & Maternal Monitor, Model F6, F9 | Edan Instruments, Inc. | 2008 | 6 | — |
| +2 | K051175 | Civ-OB Obstrical Monitoring Software Application | Civent Communications, Ltd. | 2006 | 4 | — |
| +2 | K043597 | FC 700 Fetal Monitor | Bionet Co., Ltd. | 2005 | 1 | — |
| +2 | K040903 | Cadence, Models 2001 and 2002 | Edan Instruments, Inc. | 2004 | 12 | — |
| +2 | K032252 | Model 120 Series Maternal/Fetal Monitor | Ge Medical Systems Information Technologies | 2003 | 2 | — |
| +2 | K020661 | Unity IS Patient Viewer | General Electric Medical Systems Information Techn | 2002 | 1 | — |
| +2 | K012718 | Modification to Corometrics Model 120IS Maternal/Fetal Monitoring System. | Ge Medical Systems Information Technologies | 2001 | 1 | 15 |
| +2 | K993751 | Corometrics Model 173 Fetal Monitor | Ge Medical Systems Information Technologies | 2000 | 0 | — |
| +3 | K150901 | Fetal & Maternal Monitor, models F6, F6 Express, F9, F9 Express | Edan Instruments, Inc. | 2015 | 2 | 1 |
| +3 | K131941 | Fetal Monitors | Guangdong Biolight Meditech Co., Ltd. | 2014 | 0 | — |
| +3 | K123335 | Sunray Fetal Monitor | Sunray Medical Apparatus Co., Ltd. | 2013 | 0 | — |
| +3 | K112317 | FM-9000 Plus Fetal and Maternal Monitor | Advanced Instrumentations, Inc. | 2011 | 0 | — |
| +3 | K103172 | Civ-OB (Plus) | Civnet Communication, Ltd. | 2011 | 3 | — |
| +3 | K082369 | Cadence, Cadence Dual, Cadence II Fetal Monitor | Edan Instruments, Inc. | 2008 | 4 | — |
| +3 | K073221 | Cadence II | Edan Instruments, Inc. | 2007 | 11 | — |
| +3 | K050583 | Model 250 Series Maternal/Fetal Monitor | Ge Medical Systems Information Technologies | 2005 | 1 | — |
| +3 | K032346 | Unity Network IS Patient Viewer | Ge Medical Systems Information Technologies | 2003 | 0 | — |
| +3 | K021135 | Model 2120IS Series Maternal/Fetal Monitor | Ge Medical Systems Information Technologies | 2002 | 0 | 1 |
| +4 | K173042 | Fetal & Maternal Monitor: Models F6, F6 Express, F9, F9 Express; Fetal Monitor: Models… | Edan Instruments, Inc. | 2018 | 1 | 2 |
| +4 | K153580 | Central Monitoring System | Guangdong Biolight Meditech Co., Ltd. | 2016 | 0 | — |
| +4 | K143695 | Central Monitoring System | Edan Instruments, Inc. | 2015 | 1 | — |
| +4 | K112187 | FM-1000 Plus Fetal Monitor | Advanced Instrumentations, Inc. | 2011 | 0 | — |
| +4 | K102140 | Fetal Monitors, Models F2 and F3 | Edan Instruments, Inc. | 2011 | 3 | 1 |
| +4 | K072976 | Model 250CX Series Maternal/Fetal Monitor | GE Healthcare | 2007 | 0 | — |
| +5 | K241882 | Fetal & Maternal Monitor (F15A, F15A Air) | Edan Instruments, Inc. | 2025 | 0 | — |
| +5 | K171178 | Central Monitoring System | Edan Instruments, Inc. | 2017 | 0 | 1 |
| +5 | K141194 | FM-3000 Fetal Monitor | Advanced Instrumentations, Inc. | 2014 | 0 | — |