510(k) · Cleared
ClearedPatient Monitor
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Advanced Instruments, Inc. · MHX Monitor, Physiological, Patient (With Arrhythmia Detection Or Alarms)
Cleared on May 25, 2012 as substantially equivalent to K110922 (Edan Instruments, Inc., 2011) after an 85-day review. Its family tree reaches back 15 generations to 1994. 1 of the 153 devices in its family, counting itself, has a Class I recall.
- Decided
- May 25, 2012
- Review
- 85 days
- Class
- Class II
- Product code
- MHX
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 15 generations to K941811 (1994). 152 ancestors in all, the oldest K842616 (1984). No later device cites it as a predicate yet. 1 of the 153 devices in this family, counting this one, has a Class I recall.
- Root · 15 generations backK941811 HP M1175A, M1176A, Component Monitoring SystemHewlett-Packard Co. · 1994
- 11 generations between
- 3 generations backK070791 PM Series Patient Monitors, Models PM-9000 Express and PM-8000 ExpressShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2007
- 2 generations backK073280 Beneview T Series Patient Monitors, Models T8, T6 and T5Shenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2008
- 1 generation backK110922 Patient MonitorEdan Instruments, Inc. · 2011 · Recalled
- This deviceK120631 Patient MonitorAdvanced Instruments, Inc. · 2012
Show all 15 generations
- Root · 15 generations backK941811 HP M1175A, M1176A, Component Monitoring SystemHewlett-Packard Co. · 1994
- 14 generations backK960934 HP M1205A Omnicare Component Monitor System Model 24Hewlett-Packard Co. · 1996
- 13 generations backK981376 Hewlett-Packard M1205A Viridia 24 CTHewlett-Packard Co. · 1999
- 12 generations backK990125 HP Viridia Component Monitoring System, Model Rev. KHewlett-Packard GmbH · 1999
- 11 generations backK990972 HP Viridia Component Monitoring System, HP Viridia CMS 24/26, HP…Hewlett-Packard GmbH · 1999
- 10 generations backK013199 Philips Component Compact Monitor,Model M1275B, Philips Compenent…Philips Medical Systems, Inc. · 2001
- 9 generations backK020531 Philips Multi-Parameter Module, Model M3001A; Philips Component…Philips Medical Systems · 2002
- 8 generations backK021778 Philips Component Compact Monitor, Release a.04, Model #M1275BPhilips Medical Systems · 2002
- 7 generations backK023871 M3046A (M2/M3/M4) Compact Portable Patient Monitor and MP60 & MP70…Philips Medical Systems · 2002
- 6 generations backK030038 Philips MP60, MP70 and MP90 Intellivue Patient Monitors with Portal…Philips Medical Systems, Inc. · 2003
- 5 generations backK031481 The Philips Intellivue MP60, MP70, and MP90 Patient Monitors…Philips Medizin Systeme Boblingen GmbH · 2003
- 4 generations backK032858 The Philips Intellivue MP40, MP50, MP60, MP70,and MP90 Patient…Philips Medizin Systeme Boblingen GmbH · 2003
- 3 generations backK070791 PM Series Patient Monitors, Models PM-9000 Express and PM-8000 ExpressShenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2007
- 2 generations backK073280 Beneview T Series Patient Monitors, Models T8, T6 and T5Shenzhen Mindray Bio-Medical Electronics Co., Ltd. · 2008
- 1 generation backK110922 Patient MonitorEdan Instruments, Inc. · 2011 · Recalled
- This deviceK120631 Patient MonitorAdvanced Instruments, Inc. · 2012
Class I recalls in this family
- K970209 Capnocheck Plus6 generations back · 1997
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −15 | K941811 | HP M1175A, M1176A, Component Monitoring System | Hewlett-Packard Co. | 1994 | — |
| −14 | K960934 | HP M1205A Omnicare Component Monitor System Model 24 | Hewlett-Packard Co. | 1996 | — |
| −13 | K981376 | Hewlett-Packard M1205A Viridia 24 CT | Hewlett-Packard Co. | 1999 | — |
| −12 | K990125 | HP Viridia Component Monitoring System, Model Rev. K | Hewlett-Packard GmbH | 1999 | — |
| −11 | K990972 | HP Viridia Component Monitoring System, HP Viridia CMS 24/26, HP Viridia… | Hewlett-Packard GmbH | 1999 | — |
| −10 | K013199 | Philips Component Compact Monitor,Model M1275B, Philips Compenent Rack, Model… | Philips Medical Systems, Inc. | 2001 | — |
| −9 | K020531 | Philips Multi-Parameter Module, Model M3001A; Philips Component Compact… | Philips Medical Systems | 2002 | — |
| −8 | K021778 | Philips Component Compact Monitor, Release a.04, Model #M1275B | Philips Medical Systems | 2002 | — |
| −7 | K023871 | M3046A (M2/M3/M4) Compact Portable Patient Monitor and MP60 & MP70 Intellivue… | Philips Medical Systems | 2002 | — |
| −6 | K030038 | Philips MP60, MP70 and MP90 Intellivue Patient Monitors with Portal Technology… | Philips Medical Systems, Inc. | 2003 | — |
| −5 | K031481 | The Philips Intellivue MP60, MP70, and MP90 Patient Monitors, Release a.20 | Philips Medizin Systeme Boblingen GmbH | 2003 | — |
| −4 | K032858 | The Philips Intellivue MP40, MP50, MP60, MP70,and MP90 Patient Monitors… | Philips Medizin Systeme Boblingen GmbH | 2003 | — |
| −3 | K070791 | PM Series Patient Monitors, Models PM-9000 Express and PM-8000 Express | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2007 | — |
| −2 | K073280 | Beneview T Series Patient Monitors, Models T8, T6 and T5 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 2008 | — |
| −1 | K110922 | Patient Monitor | Edan Instruments, Inc. | 2011 | 1 |
| 0 (this device) | K120631 | Patient Monitor | Advanced Instruments, Inc. | 2012 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1984 | 1 | 0 |
| 1987 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 10 | 1 |
| 1998 | 14 | 0 |
| 1999 | 11 | 0 |
| 2000 | 16 | 0 |
| 2001 | 5 | 0 |
| 2002 | 9 | 0 |
| 2003 | 2 | 0 |
| 2004 | 10 | 0 |
| 2005 | 3 | 0 |
| 2006 | 3 | 0 |
| 2009 | 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 MHX device
- #1 K251702 IntelliVue Patient Monitor MX750; IntelliVue…score 23.0 · 40 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 |
|---|---|---|---|
| * | K110922 | Patient MonitorSummary page 1…HX, DRT, DXN, DSK, ELL, DQA, CCK, CBQ, CBS, CBR. CCL, DSA, DRT, DSF, and MLD * Regulatory Class: Class 11 Predicate Device: M50 & M80 Patient Monitor K1 10922 Manufacturer: EDAN Instruments ADVANCED INSTRUMENTATIONS, INC Page 1 of 3 === Page 2… | 2011 |
| † | K083821 | Vital Signs Monitor | 2009 |
| † | K032857 | Press-Mate BX-10 Vital Sign Monitor | 2004 |
| † | K102854 | PC ECG | 2010 |
| † | K092010 | PC Ecg, Model SE-1010 | 2009 |
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.
- K970209Capnocheck PlusBci Intl., Inc. · 1997 · 6 generations back · ◆ in the 1997 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 18 years and passes through 8 companies; a new generation was cleared every 5 months on median.
- 22 of the 152 ancestors have a recall of any class; 1 has a Class I recall.
How does its category compare?
All MHX devicesMHX Monitor, Physiological, Patient (With Arrhythmia Detection Or Alarms): FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.
FDA decisions per year · MHX
8in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MHX
192in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MHX
21so far in 2026, the most since 2007
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · MHX
3,761in 2025
MAUDE reports naming product code MHX, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 15 | 96 | 3 | 131 |
| 2008 | 16 | 58 | 2 | 232 |
| 2009 | 13 | 57 | 7 | 382 |
| 2010 | 20 | 90 | 13 | 955 |
| 2011 | 12 | 81 | 16 | 949 |
| 2012 | 16 | 88 | 11 | 676 |
| 2013 | 21 | 120 | 14 | 1,997 |
| 2014 | 13 | 248 | 6 | 1,609 |
| 2015 | 14 | 203 | 5 | 1,284 |
| 2016 | 13 | 149 | 7 | 1,105 |
| 2017 | 14 | 134 | 6 | 1,115 |
| 2018 | 11 | 203 | 12 | 2,157 |
| 2019 | 7 | 243 | 6 | 1,462 |
| 2020 | 11 | 196 | 0 | 1,714 |
| 2021 | 5 | 195 | 0 | 2,423 |
| 2022 | 15 | 189 | 6 | 1,470 |
| 2023 | 8 | 229 | 3 | 2,254 |
| 2024 | 5 | 181 | 3 | 2,814 |
| 2025 | 8 | 192 | 15 | 3,761 |
| 2026 | 14 | 205 | 21 | — |
What is it indicated for?
PM-2000XL Pro: The monitor monitors parameters such as ECG (3-lead, 5-lead, 12-lead selectable), Respiration (RESP), Functional arterial oxygen saturation (SpO2), Invasive or noninvasive blood pressure (2/4 channels IBP NIBP)J Cardiac Output (CO), Temperature (dual-TEMP), Expired 002 and Anesthetic gas (AG). The monitor is equipped with alarms that indicate system faults (such as loose or defective electrodes), physiologic parameters that have exceeded…
Read the full statement (145 words)
PM-2000XL Pro:
The monitor monitors parameters such as ECG (3-lead, 5-lead, 12-lead selectable), Respiration (RESP), Functional arterial oxygen saturation (SpO2), Invasive or noninvasive blood pressure (2/4 channels IBP NIBP)J Cardiac Output (CO), Temperature (dual-TEMP), Expired 002 and Anesthetic gas (AG). The monitor is equipped with alarms that indicate system faults (such as loose or defective electrodes), physiologic parameters that have exceeded the limits set by the operator, or both.
PM-2000XL:
The monitor monitors parameters such as EGG (3-lead, 5-lead selectable), Respiration (RESP), Functional arterial oxygen saturation (SpO2), Invasive or noninvasive blood pressure (dual-IBP, NIBP), Temperature (dual-TEMP), Expired 002 and Quick Temperature (Quick TEMP. The monitor is equipped with alarms that indicate system faults (such as loose or defective electrodes), physiologic parameters that have exceeded the limits set by the operator, or both. The arrhythmia detection and ST Segment analysis are not intended for neonatal patients.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K120631 · printed Nov 6, 2026
Cite this page
510(k) Report. “K120631: Patient Monitor.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K120631
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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