510(k) · Cleared
Recalled · Class II · 2017Fukuda Denshi Dynascope Model DS-8100N/8100M Patient Monitor
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Fukuda Denshi USA, Inc. · MHX Monitor, Physiological, Patient (With Arrhythmia Detection Or Alarms)
Cleared on Feb 12, 2015 as substantially equivalent to K083697 (Fukuda Denshi USA, Inc., 2009) after a 408-day review. Its family tree reaches back 8 generations to 1997. It has been recalled 2 times.
- Decided
- Feb 12, 2015
- Review
- 408 days
- Class
- Class II
- Product code
- MHX
- Recalls
- 2
- Predicates
- 1
Its longest line of descent runs back 8 generations to K962603 (1997). 26 ancestors in all, the oldest K894628 (1990). No later device cites it as a predicate yet.
- Root · 8 generations backK962603 Masimo Set MS-1 Pulse Oximeter & the Lnop Series of Sensors & CablesMasimo Corp. · 1997
- 7 generations backK973887 Masimo Set MS-1P Pulse Oximeter and the Lnop Series of Sensors and…Masimo Corp. · 1998
- 6 generations backK982255 Model 2000 Pulse OximeterIvy Biomedical Systems, Inc. · 1998
- 5 generations backK991823 N-395 Pulse Oximeter, Model N-395Nellcor Puritan Bennett, Inc. · 1999
- 4 generations backK012891 Oximax Pulse Oximetry System with N-595 Pulse Oximeter and Oximax…Nellcor Puritan Bennett, Inc. · 2002 · Recalled
- 3 generations backK021090 Oximax N-550 Pulse Oximeter,Model N-550 Pulse OximeterNellcor Puritan Bennett, Inc. · 2002
- 2 generations backK081891 Fukuda Denshi Dynascope Model DS-7000/7000M Patient MonitorFukuda Denshi USA, Inc. · 2008
- 1 generation backK083697 Fukuda Denshi Dynascope Model DS-7000 Series Patient Monitor, Model…Fukuda Denshi USA, Inc. · 2009
- This deviceK134046 Fukuda Denshi Dynascope Model DS-8100N/8100M Patient MonitorFukuda Denshi USA, Inc. · 2015
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −8 | K962603 | Masimo Set MS-1 Pulse Oximeter & the Lnop Series of Sensors & Cables | Masimo Corp. | 1997 | — |
| −7 | K973887 | Masimo Set MS-1P Pulse Oximeter and the Lnop Series of Sensors and Cables | Masimo Corp. | 1998 | — |
| −6 | K982255 | Model 2000 Pulse Oximeter | Ivy Biomedical Systems, Inc. | 1998 | — |
| −5 | K991823 | N-395 Pulse Oximeter, Model N-395 | Nellcor Puritan Bennett, Inc. | 1999 | — |
| −4 | K012891 | Oximax Pulse Oximetry System with N-595 Pulse Oximeter and Oximax Sensors and… | Nellcor Puritan Bennett, Inc. | 2002 | 1 |
| −3 | K021090 | Oximax N-550 Pulse Oximeter,Model N-550 Pulse Oximeter | Nellcor Puritan Bennett, Inc. | 2002 | — |
| −2 | K081891 | Fukuda Denshi Dynascope Model DS-7000/7000M Patient Monitor | Fukuda Denshi USA, Inc. | 2008 | — |
| −1 | K083697 | Fukuda Denshi Dynascope Model DS-7000 Series Patient Monitor, Model… | Fukuda Denshi USA, Inc. | 2009 | — |
| 0 (this device) | K134046 | Fukuda Denshi Dynascope Model DS-8100N/8100M Patient Monitor | Fukuda Denshi USA, Inc. | 2015 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1990 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2003 | 3 | 0 |
| 2004 | 2 | 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.
Planning a device in MHX? 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 |
|---|---|---|---|
| * | K083697 | Fukuda Denshi Dynascope Model DS-7000 Series Patient Monitor, Model…Summary page 5…Monitor Legally Marketed Predicate Devices: Fukuda Denshi DynaScope Model DS-7000 Series Patient Monitor (Model: DS- 7210/7210M), 510(k) # K083697 In addition, function of the DS-8100N/8100M Patient Monitor utilizes technology incorporated into… | 2009 |
| † | K060576 | Nellcor Oximax N-600X Pulse Oximeter | 2006 |
| † | K110028 | Masimo Radical Y Pulse CO-Oximeter | 2011 |
| † | K094012 | CAPNOSTREAM20 with MICROMEDICO2 Module | 2010 |
| † | K042601 | Capnostat 5 | 2004 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Oct 16, 2017 | Class II | Z-0203-2018 | Component design/selection | For the Fukuda Denshi patient monitor model DS-8100, in less than 0.003% (17) of the 6227 devices sold worldwide, a Short-term Battery Error message has appeared and has been traced back to a bad (damaged) Lithium-Ion capacitor… |
| Dec 21, 2015 | Class II | Z-0661-2016 | Process control | A possible malfunction where a Short-term Battery Error message has appeared and has been traced back to a bad (damaged) Lithium-Ion capacitor (Short-term Backup battery). |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 18 years and passes through 4 companies; a new generation was cleared every 11 months on median.
- 4 of the 26 ancestors have a recall of any class.
- 1 other device also cites its predicate K083697.
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. 2015, 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?
Use of the Fukuda Denshi DynaScope Model DS-8100N/8100M Patient Monitor is indicated in those situations where observation of one or more of the following parameters on an individual patient may be required. ECG (waveform, heart rate, ST-Level and ventricular arrhythmias), respiration, non-invasive blood pressure (NIBP), pulse rate, arterial oxygen saturation (SpO2), carboxyhemoglobin saturation (SpCO)*, methemoglobin saturation (SpMet)*, total…
Read the full statement (203 words)
Use of the Fukuda Denshi DynaScope Model DS-8100N/8100M Patient Monitor is indicated in those situations where observation of one or more of the following parameters on an individual patient may be required. ECG (waveform, heart rate, ST-Level and ventricular arrhythmias), respiration, non-invasive blood pressure (NIBP), pulse rate, arterial oxygen saturation (SpO2), carboxyhemoglobin saturation (SpCO)*, methemoglobin saturation (SpMet)*, total hemoglobin concentration (SpHb)*, plethysmograph, temperature, invasive blood pressure (IBP), cardiac output, and carbon dioxide concentration (CO2). *: DS-8100M only
The target populations of the system are adult, pediatric and neonatal patients with the exception of the ST segment, arrhythmia analysis, and SpHb, for which the target populations are adult and pediatric excluding neonates. These observations can include an audible and visual alarm if any of these parameters exceed values that are established by the clinician. The observations may include the individual or comparative trending of one or more of these parameters over a period of up to 24 hours. The DS-8100N/8100M Patient Monitor is indicated in situations where an instantaneous display of waveform, numeric and trended values is desired. The DS-8100N/8100M Patient Monitor is also indicated where a hard copy record of the physiological parameters, the alarms conditions or the trended values may be required.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K134046 · printed Nov 5, 2026
Cite this page
510(k) Report. “K134046: Fukuda Denshi Dynascope Model DS-8100N/8100M Patient Monitor.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K134046
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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