510(k) · Cleared
ClearedSignalHF (IM008)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Implicity, Inc. · QNL Medium-Term Adjunctive Predictive Cardiovascular Indicator
Cleared on Oct 25, 2023 as substantially equivalent to K203224 (Edwards Lifesciences, LLC, 2021) after a 211-day review. Its family tree reaches back 28 generations to 1994. 1 of the 244 devices in its family, counting itself, has a Class I recall.
- Decided
- Oct 25, 2023
- Review
- 211 days
- Class
- Class II
- Product code
- QNL
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 28 generations to K941811 (1994). 243 ancestors in all, the oldest K822055 (1982). No later device cites it as a predicate yet. 1 of the 244 devices in this family, counting this one, has a Class I recall.
- Root · 28 generations backK941811 HP M1175A, M1176A, Component Monitoring SystemHewlett-Packard Co. · 1994
- 24 generations between
- 3 generations backK190205 HemoSphere Advanced Monitor, HemoSphere Tissue Oximetry ModuleEdwards Lifesciences, LLC · 2019
- 2 generations backK201446 HemoSphere Advanced Monitoring Platform, HemoSphere ClearSight ModuleEdwards Lifesiences, LLC · 2020 · Recalled
- 1 generation backK203224 Acumen Hypotension Prediction Index, HemoSphere Advanced Monitoring…Edwards Lifesciences, LLC · 2021
- This deviceK230842 SignalHF (IM008)Implicity, Inc. · 2023
Show all 28 generations
- Root · 28 generations backK941811 HP M1175A, M1176A, Component Monitoring SystemHewlett-Packard Co. · 1994
- 27 generations backK960934 HP M1205A Omnicare Component Monitor System Model 24Hewlett-Packard Co. · 1996
- 26 generations backK981376 Hewlett-Packard M1205A Viridia 24 CTHewlett-Packard Co. · 1999
- 25 generations backK990125 HP Viridia Component Monitoring System, Model Rev. KHewlett-Packard GmbH · 1999
- 24 generations backK990972 HP Viridia Component Monitoring System, HP Viridia CMS 24/26, HP…Hewlett-Packard GmbH · 1999
- 23 generations backK013199 Philips Component Compact Monitor,Model M1275B, Philips Compenent…Philips Medical Systems, Inc. · 2001
- 22 generations backK020531 Philips Multi-Parameter Module, Model M3001A; Philips Component…Philips Medical Systems · 2002
- 21 generations backK021778 Philips Component Compact Monitor, Release a.04, Model #M1275BPhilips Medical Systems · 2002
- 20 generations backK023871 M3046A (M2/M3/M4) Compact Portable Patient Monitor and MP60 & MP70…Philips Medical Systems · 2002
- 19 generations backK030038 Philips MP60, MP70 and MP90 Intellivue Patient Monitors with Portal…Philips Medical Systems, Inc. · 2003
- 18 generations backK031481 The Philips Intellivue MP60, MP70, and MP90 Patient Monitors…Philips Medizin Systeme Boblingen GmbH · 2003
- 17 generations backK032858 The Philips Intellivue MP40, MP50, MP60, MP70,and MP90 Patient…Philips Medizin Systeme Boblingen GmbH · 2003
- 16 generations backK040304 Philips Intellivue Patient Monitor, Models MP40 & MP50Philips Medizin Systeme Boeblingen GmbH · 2004
- 15 generations backK041235 Philips MP20, MP30, MP40, MP50. MP60, MP70 and MP90 Intellivue…Philips Medizin Systeme Boeblingen GmbH · 2004
- 14 generations backK042845 The Philips MP20, MP30, MP40, MP50, MP60, MP70, and MP90 Intellivue…Philips Medizin Systeme Boblingen GmbH · 2004
- 13 generations backK050141 The Philips MP20, MP30, MP40, MP50, MP60, MP70 and MP90 Intellivue…Philips Medizin Systeme Boeblingen GmbH · 2005
- 12 generations backK050762 Philips Intellivue Patient Monitor, Models MP20, MP30, MP40, MP50…Philips Medizin Systeme Boeblingen GmbH · 2005
- 11 generations backK051106 The Philips MP20, MP30, MP40, MP50, MP60, MP70, MP80 and MP90…Philips Medizin Systeme Boeblingen GmbH · 2005
- 10 generations backK052801 Intellivue Patient Monitors with Release C.02, Models MP20, MP30…Philips Medizin Systeme Boeblingen GmbH · 2005
- 9 generations backK053522 Philips MP40, MP50, MP60, MP70, MP80 and MP90 Intellivue Patient…Philips Medizin Systeme Boeblingen GmbH · 2006
- 8 generations backK060221 The Phillips, Model MP20,MP30,MP40,MP50,MP60,MP70,MP80,and MP90…Philips Medizin Systeme Boeblingen GmbH · 2006
- 7 generations backK060541 The Philips MP20,MP30,MP40,MP50,MP60,MP70,MP80 and MP90 Intellivue…Philips Medizin Systeme Boblingen GmbH · 2006 · Recalled
- 6 generations backK061052 The Philips Intellivue Patient Monitors, Models…Philips Medical Systems North America, Inc. · 2006
- 5 generations backK062283 The Philips MP20, MP30, MP40, MP50, MP60, MP70, MP80, MP90…Philips Medical Systems North America, Inc. · 2006
- 4 generations backK180881 HemoSphere Advanced Monitor, HemoSphere Pressure CableEdwards Lifesciences, LLC · 2018
- 3 generations backK190205 HemoSphere Advanced Monitor, HemoSphere Tissue Oximetry ModuleEdwards Lifesciences, LLC · 2019
- 2 generations backK201446 HemoSphere Advanced Monitoring Platform, HemoSphere ClearSight ModuleEdwards Lifesiences, LLC · 2020 · Recalled
- 1 generation backK203224 Acumen Hypotension Prediction Index, HemoSphere Advanced Monitoring…Edwards Lifesciences, LLC · 2021
- This deviceK230842 SignalHF (IM008)Implicity, Inc. · 2023
Class I recalls in this family
- K160552 EV1000 Clinical Platform with ClearSight Finger…3 generations back · 2016
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −28 | K941811 | HP M1175A, M1176A, Component Monitoring System | Hewlett-Packard Co. | 1994 | — |
| −27 | K960934 | HP M1205A Omnicare Component Monitor System Model 24 | Hewlett-Packard Co. | 1996 | — |
| −26 | K981376 | Hewlett-Packard M1205A Viridia 24 CT | Hewlett-Packard Co. | 1999 | — |
| −25 | K990125 | HP Viridia Component Monitoring System, Model Rev. K | Hewlett-Packard GmbH | 1999 | — |
| −24 | K990972 | HP Viridia Component Monitoring System, HP Viridia CMS 24/26, HP Viridia… | Hewlett-Packard GmbH | 1999 | — |
| −23 | K013199 | Philips Component Compact Monitor,Model M1275B, Philips Compenent Rack, Model… | Philips Medical Systems, Inc. | 2001 | — |
| −22 | K020531 | Philips Multi-Parameter Module, Model M3001A; Philips Component Compact… | Philips Medical Systems | 2002 | — |
| −21 | K021778 | Philips Component Compact Monitor, Release a.04, Model #M1275B | Philips Medical Systems | 2002 | — |
| −20 | K023871 | M3046A (M2/M3/M4) Compact Portable Patient Monitor and MP60 & MP70 Intellivue… | Philips Medical Systems | 2002 | — |
| −19 | K030038 | Philips MP60, MP70 and MP90 Intellivue Patient Monitors with Portal Technology… | Philips Medical Systems, Inc. | 2003 | — |
| −18 | K031481 | The Philips Intellivue MP60, MP70, and MP90 Patient Monitors, Release a.20 | Philips Medizin Systeme Boblingen GmbH | 2003 | — |
| −17 | K032858 | The Philips Intellivue MP40, MP50, MP60, MP70,and MP90 Patient Monitors… | Philips Medizin Systeme Boblingen GmbH | 2003 | — |
| −16 | K040304 | Philips Intellivue Patient Monitor, Models MP40 & MP50 | Philips Medizin Systeme Boeblingen GmbH | 2004 | — |
| −15 | K041235 | Philips MP20, MP30, MP40, MP50. MP60, MP70 and MP90 Intellivue Patient Monitors | Philips Medizin Systeme Boeblingen GmbH | 2004 | — |
| −14 | K042845 | The Philips MP20, MP30, MP40, MP50, MP60, MP70, and MP90 Intellivue Patient… | Philips Medizin Systeme Boblingen GmbH | 2004 | — |
| −13 | K050141 | The Philips MP20, MP30, MP40, MP50, MP60, MP70 and MP90 Intellivue Patient… | Philips Medizin Systeme Boeblingen GmbH | 2005 | — |
| −12 | K050762 | Philips Intellivue Patient Monitor, Models MP20, MP30, MP40, MP50, MP60, MP70… | Philips Medizin Systeme Boeblingen GmbH | 2005 | — |
| −11 | K051106 | The Philips MP20, MP30, MP40, MP50, MP60, MP70, MP80 and MP90 Intellivue… | Philips Medizin Systeme Boeblingen GmbH | 2005 | — |
| −10 | K052801 | Intellivue Patient Monitors with Release C.02, Models MP20, MP30, MP40, MP50… | Philips Medizin Systeme Boeblingen GmbH | 2005 | — |
| −9 | K053522 | Philips MP40, MP50, MP60, MP70, MP80 and MP90 Intellivue Patient Monitors… | Philips Medizin Systeme Boeblingen GmbH | 2006 | — |
| −8 | K060221 | The Phillips, Model MP20,MP30,MP40,MP50,MP60,MP70,MP80,and MP90 Intellivue… | Philips Medizin Systeme Boeblingen GmbH | 2006 | — |
| −7 | K060541 | The Philips MP20,MP30,MP40,MP50,MP60,MP70,MP80 and MP90 Intellivue Atient… | Philips Medizin Systeme Boblingen GmbH | 2006 | 2 |
| −6 | K061052 | The Philips Intellivue Patient Monitors, Models… | Philips Medical Systems North America, Inc. | 2006 | — |
| −5 | K062283 | The Philips MP20, MP30, MP40, MP50, MP60, MP70, MP80, MP90 Intellivue Patient… | Philips Medical Systems North America, Inc. | 2006 | — |
| −4 | K180881 | HemoSphere Advanced Monitor, HemoSphere Pressure Cable | Edwards Lifesciences, LLC | 2018 | — |
| −3 | K190205 | HemoSphere Advanced Monitor, HemoSphere Tissue Oximetry Module | Edwards Lifesciences, LLC | 2019 | — |
| −2 | K201446 | HemoSphere Advanced Monitoring Platform, HemoSphere ClearSight Module | Edwards Lifesiences, LLC | 2020 | 1 |
| −1 | K203224 | Acumen Hypotension Prediction Index, HemoSphere Advanced Monitoring Platform | Edwards Lifesciences, LLC | 2021 | — |
| 0 (this device) | K230842 | SignalHF (IM008) | Implicity, Inc. | 2023 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1982 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 16 | 0 |
| 1999 | 10 | 0 |
| 2000 | 22 | 0 |
| 2001 | 9 | 0 |
| 2002 | 17 | 0 |
| 2003 | 9 | 0 |
| 2004 | 19 | 0 |
| 2005 | 4 | 0 |
| 2006 | 9 | 0 |
| 2007 | 2 | 0 |
| 2008 | 9 | 0 |
| 2009 | 5 | 0 |
| 2010 | 6 | 0 |
| 2011 | 1 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 3 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 3 | 0 |
| 2019 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
1 device in this family has a Class I recall. A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new QNL device
- #1 K200717 CLEWICU System (ClewICUServer and ClewICUnitor)score 20.2 · 26 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K203224 | Acumen Hypotension Prediction Index, HemoSphere Advanced Monitoring PlatformSummary page 5…3 Predicate Device The predicate and reference device for SignalHF are: Predicate Device Acumen™ Hypotension Prediction Index (HPI), Edwards Lifesciences, LLC K203224 Comparison to Subject… | 2021 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (1 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K160552EV1000 Clinical Platform with ClearSight Finger Cuff or ClearSight System, EV1000 Clinical PlatformEdwards Lifesciences, LLC · 2016 · 3 generations back · ◆ in the 2016 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 29 years and passes through 10 companies; a new generation was cleared every 4 months on median.
- 35 of the 243 ancestors have a recall of any class; 1 has a Class I recall.
How does its category compare?
All QNL devicesQNL Medium-Term Adjunctive Predictive Cardiovascular Indicator: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.
FDA decisions per year · QNL
2in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · QNL
Too few QNL 510(k)s in any year since 2007 to give a median.
Recalls per year · QNL
No recall names QNL since 2007.
Adverse event reports per year · QNL
No MAUDE report names QNL since 2007.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 0 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 1 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 2 | — | 0 | 0 |
| 2024 | 2 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 1 | — | 0 | — |
What is it indicated for?
The SignalHF System is intended for use by qualified healthcare professionals (HCP) managing patients over 18 years old who are receiving physiological monitoring for Heart Failure surveillance and implanted with a compatible Cardiac Implantable Electronic Devices (CIED) (i.e., compatible pacemakers, ICDs, and CRTs).
The SignalHF System provides additive information to use in conjunction with standard clinical evaluation.
The SignalHF HF Score is intended to calculate the risk of HF for a patient in the next 30 days.
This System is intended for adjunctive use with other physiological vital signs and patient symptoms and information and is not intended to independently direct therapy.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K230842 · printed Nov 6, 2026
Cite this page
510(k) Report. “K230842: SignalHF (IM008).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K230842
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026