Devices descending from K921957
79 later devices reach Hewlett-Packard Model M1351A Fetal Monitor through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K023931 | Philips Avalon CTS Cordless Fetal Transducer System, Models M2720A, M2725A, M2726A, M2727A | Philips Medical Systems, Inc. | 2003 | 76 | — |
| +1 | K990569 | Baby Dopplex 4000, Model BD 4000 | Huntleigh Healthcare, Inc. | 2000 | 0 | — |
| +1 | K963711 | Baby Dopplex (3000) | Huntleigh Healthcare, Inc. | 1997 | 1 | — |
| +2 | K171865 | F1 Mothership Wireless Transducers for Fetal Ultrasonic and Tocodynamometer Monitoring | Farus, LLC | 2017 | 0 | — |
| +2 | K150901 | Fetal & Maternal Monitor, models F6, F6 Express, F9, F9 Express | Edan Instruments, Inc. | 2015 | 2 | 1 |
| +2 | K140535 | Philips Avalon Fetal / Maternal Monitors FM20, FM30, FM40 and FM50 | Philips Medizin Systeme Boblingen GmbH | 2014 | 0 | 5 |
| +2 | K132650 | Sonicaid Freedom Wireless Fetal Monitoring System | Huntleigh Healthcare Limited | 2014 | 0 | — |
| +2 | K112163 | Monica IF24 | Monica Healthcare | 2011 | 4 | 1 |
| +2 | K100598 | Penrith Elettra Ultrasound System | Penrith Corporation | 2010 | 64 | — |
| +3 | K173042 | Fetal & Maternal Monitor: Models F6, F6 Express, F9, F9 Express; Fetal Monitor: Models… | Edan Instruments, Inc. | 2018 | 1 | 2 |
| +3 | K172750 | Wireless Probe Type Ultrasound Scanner (Model:UProbe-C; UProbe-L; BProbe) | Guangzhou Sonostar Technologies Co., Ltd. | 2018 | 4 | — |
| +3 | K162417 | Acuson Freestyle Ultrasound System | Siemens Medi Cal Solutions, Inc. | 2016 | 29 | — |
| +3 | K151339 | SONON Ultrasound Imaging System (Model: SONON 300C) | Healcerion Co., Ltd. | 2015 | 33 | — |
| +3 | K140862 | Monica Novii Wireless Patch System | Monica Healthcare, Ltd. | 2014 | 3 | 2 |
| +4 | K260111 | Palmtop Ultrasound Diagnostic System (MT10P/MT10) | Mytech Intelligence (Shenzhen) Co., Ltd. | 2026 | 0 | — |
| +4 | K241882 | Fetal & Maternal Monitor (F15A, F15A Air) | Edan Instruments, Inc. | 2025 | 0 | — |
| +4 | K233440 | Avalon CL Fetal & Maternal (F&M) Pod (866488), Avalon CL Fetal & Maternal (F&M) Patch… | Philips Medizin Systeme Boeblingen GmbH | 2024 | 0 | — |
| +4 | K231964 | Novii+ Wireless Patch System | Datex Ohmeda | 2023 | 1 | — |
| +4 | K211321 | Wireless Probe Type Ultrasound Scanner (Model: CProbe; Type: Type C, Type L, Type CT… | Guangzhou Sonostar Technologies Co., Ltd. | 2022 | 1 | — |
| +4 | K220169 | SonoMe Wireless Probe Type Ultrasound Scanner (Model: 5C, 5CB, H5C, 10L, 14L, 10LB… | Bionet Co., Ltd. | 2022 | 0 | — |
| +4 | K213488 | Bladder Scanner, Model Name:M5 | Suzhou Peaksonic Medical Technology Co., Ltd. | 2022 | 0 | — |
| +4 | K211665 | SONON Ultrasound Imaging System, Model: SONON300C | Healcerion Co., Ltd. | 2022 | 0 | — |
| +4 | K200644 | ACUSON Freestyle Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2020 | 7 | — |
| +4 | K170085 | SONON Ultrasound Imaging System, Model: 300L | Healcerion Co., Ltd. | 2017 | 4 | — |
| +4 | K163396 | ACUSON P500 Ultrasound System | Siemens Medical Solutions USA, Inc. | 2017 | 27 | — |
| +4 | K163138 | Clarius Ultrasound System | Clarius Mobile Health Corp. | 2016 | 28 | — |
| +5 | K254036 | Novii+ Wireless Patch System | Datex Ohmeda, Inc. | 2026 | 0 | — |
| +5 | K250955 | XC11 ICE System, USA | Yorlabs, Inc. | 2025 | 0 | — |
| +5 | K212400 | SONON Ultrasound Imaging System, Model: SONON 500L | Healcerion Co., Ltd. | 2022 | 0 | — |
| +5 | K213487 | ACUSON P500 Ultrasound System | Siemens Medical Solutions USA, Inc. | 2022 | 1 | — |
| +5 | K210468 | SC1 Handheld Ultrasound Imaging System (Model: SC1) | Fcu Co., Ltd. | 2021 | 1 | — |
| +5 | K202683 | ACUSON Sequoia Diagnostic Ultrasound System, ACUSON SC2000 Diagnostic Ultrasound System… | Siemens Medical Solutions USA, Inc. | 2020 | 6 | — |
| +5 | K180039 | ACUSON P600 Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2018 | 25 | — |
| +5 | K173138 | Biim Diagnostic Ultrasound System | Biim Ultrasound AS | 2017 | 0 | — |
| +5 | K172385 | Clarius Ultrasound System | Clarius Mobile Health Corp. | 2017 | 22 | — |
| +6 | K233579 | SC1 Handheld Ultrasound Imaging system (Model: SC1) | Fcu Co., Ltd. | 2024 | 0 | — |
| +6 | K233610 | ACUSON P500 Ultrasound System; ACUSON P500 ICE Ultrasound System | Siemens Medical Solutions USA, Inc. | 2024 | 0 | — |
| +6 | K212851 | EchoSK and EchoSGyn modules for EchoS Family devices | Echolight S.P.A | 2022 | 0 | — |
| +6 | K211726 | Acuson SC2000 Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2021 | 4 | — |
| +6 | K201130 | ACUSON Juniper Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2020 | 14 | 4 |
| +6 | K191235 | Leltek Ultrasound Imaging System | Leltek, Inc. | 2020 | 9 | — |
| +6 | K191922 | ACUSON P200 Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2019 | 23 | — |
| +6 | K180799 | Clarius Ultrasound Scanner | Clarius Mobile Health Corp. | 2018 | 11 | — |
| +7 | K242893 | VERAFEYE System VERAFEYE Imaging Catheter & VERAFEYE Imaging System | Luma Vision Limited | 2025 | 2 | — |
| +7 | K233613 | ACUSON SC2000 Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2024 | 0 | — |
| +7 | K221190 | ACUSON Juniper Diagnostic Ultrasound System and ACUSON Juniper Select Diagnostic… | Siemens Medical Solutions USA, Inc. | 2022 | 4 | — |
| +7 | K210432 | LELTEK Ultrasound Imaging System (Model: LU700 Series) | Leltek, Inc. | 2021 | 8 | — |
| +7 | K210743 | ACUSON Redwood Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2021 | 15 | 3 |
| +7 | K192107 | Clarius Ultrasound Scanner | Clarius Mobile Health Corp. | 2019 | 10 | — |
| +8 | K261849 | VERAFEYE Imaging Catheter (VF-VIC-002) | Luma Vision Limited | 2026 | 0 | — |
| +8 | K260885 | VERAFEYE Imaging and Guidance System (VF-VIS-002) | Luma Vision Limited | 2026 | 0 | — |
| +8 | K243299 | ACUSON Redwood Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2024 | 0 | — |
| +8 | K230207 | ACUSON Juniper Diagnostic Ultrasound System, ACUSON Juniper Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2023 | 3 | — |
| +8 | K222365 | Leltek Ultrasound Imaging System (Model: LU700 Series) | Leltek, Inc. | 2022 | 7 | — |
| +8 | K221500 | ACUSON Sequoia Diagnostic Ultrasound System | Siemens Medical Solutions USA, Inc. | 2022 | 6 | — |
| +8 | K220490 | ImaCor Zura Handheld ZHH-010 | Imacor, Inc. | 2022 | 0 | 2 |
| +8 | K211746 | Pocket Ultrasound System | Guangdong Youkey Medical Co., Ltd. | 2022 | 1 | — |
| +8 | K213436 | Clarius Ultrasound Scanner | Clarius Mobile Health Corp. | 2021 | 2 | — |
| +8 | K211232 | Apache Ultrasound System | Aco Healthcare Co., Ltd. | 2021 | 0 | — |
| +8 | K202074 | Apache Ultrasound System (Model C62) | Compal Electronics, Inc. | 2020 | 0 | — |
| +9 | K250791 | ASUS Ultrasound Imaging System (LU800 series) | Asustek Computer, Inc. | 2025 | 0 | — |
| +9 | K253457 | ACUSON Juniper Diagnostic Ultrasound System; ACUSON Juniper Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2025 | 0 | — |
| +9 | K242681 | NUSONO Handheld Ultrasound Scanner (NUSONO-C35); NUSONO Handheld Ultrasound Scanner… | Nurodata, Inc. | 2025 | 1 | — |
| +9 | K241161 | Ultrasound Imaging System (LK128L); Ultrasound Imaging System (LK128LH); Ultrasound… | Leltek, Inc. | 2024 | 3 | — |
| +9 | K231930 | Digital Ultrasonic Diagnostic Imaging System (Model: F6) | Guangdong Youkey Medical Co., Ltd. | 2024 | 0 | — |
| +9 | K231509 | Aco Apache Ultrasound System | Aco Healthcare Co., Ltd. | 2023 | 0 | — |
| +9 | K232704 | Clarius Ultrasound Scanner | Clarius Mobile Health Corp. | 2023 | 0 | — |
| +9 | K232617 | ACUSON Maple Diagnostic Ultrasound System, ACUSON Maple Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2023 | 1 | 2 |
| +9 | K223735 | ACUSON Sequoia Diagnostic Ultrasound System, ACUSON Sequoia Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2023 | 5 | — |
| +10 | K261288 | Handheld Ultrasound Scanner | Imgfax CO., LTD. | 2026 | 0 | — |
| +10 | K252709 | Wireless Probe Type Ultrasound Scanner | Xuzhou Yongkang Electronic Science Technology Co., Ltd. | 2026 | 0 | — |
| +10 | K253487 | ACUSON Maple Diagnostic Ultrasound System; ACUSON Maple Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2025 | 0 | — |
| +10 | K243226 | Ultrasound Imaging System (LU700 Series); Ultrasound Imaging System (128 Series)… | Leltek, Inc. | 2025 | 1 | — |
| +10 | K232145 | ACUSON Sequoia Diagnostic Ultrasound System, ACUSON Sequoia Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2023 | 4 | — |
| +11 | K261132 | Healium Intelliscan LX192LC | Healium Intelliscan Corporation | 2026 | 0 | — |
| +11 | K240704 | ACUSON Sequoia Diagnostic Ultrasound System, ACUSON Sequoia Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2024 | 3 | — |
| +12 | K242523 | ACUSON Sequoia Diagnostic Ultrasound System; ACUSON Sequoia Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2024 | 2 | — |
| +13 | K251481 | ACUSON Sequoia Diagnostic Ultrasound System; ACUSON Sequoia Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2025 | 1 | — |
| +14 | K260844 | ACUSON Sequoia Diagnostic Ultrasound System;ACUSON Sequoia Select Diagnostic Ultrasound… | Siemens Medical Solutions USA, Inc. | 2026 | 0 | — |