510(k) · Cleared
ClearedMicrolife Upper Arm Automatic Digital Blood Pressure Monitor
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Microlife Intellectual Property GmbH · DXN System, Measurement, Blood-Pressure, Non-Invasive
Cleared on Mar 16, 2018 as substantially equivalent to K112845 (Microlife Intellectual Property GmbH, 2011) after a 261-day review. Its family tree reaches back 8 generations to 1991. 1 later device descends from it.
- Decided
- Mar 16, 2018
- Review
- 261 days
- Class
- Class II
- Product code
- DXN
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 8 generations to K903134 (1991). 26 ancestors in all, the oldest K872291 (1987). 1 later device descends from it, 1 citing it directly.
- Root · 8 generations backK903134 Omron Auto Oscillometric Dig BP Mont/Hem-704C 705COmron Marshall Products, Inc. · 1991
- 7 generations backK970211 Microlife Automatic Blood Pressure MonitorMicro Weiss Electronics · 1998
- 6 generations backK013485 Microlife Upper Arm Automatic Blood Pressure Monitor, Model…Microlife Corp. · 2002
- 5 generations backK041411 Microlife Upper Arm Blood Pressure Monitor, Model BP-3BTO-APMicrolife Corp. · 2004
- 4 generations backK060686 Microlife Automatic Blood Pressure Monitor, Model BP3AC1-1PCMicrolife Intellectual Property GmbH · 2006
- 3 generations backK073198 Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model…Microlife Intellectual Property GmbH · 2008
- 2 generations backK082357 Microlife Upper Arm Automatic Digital Blood Pressure Monitor…Microlife Intellectual Property GmbH · 2008
- 1 generation backK112845 Microlife Upper Arm Automatic Digital Blood Pressure MonitorMicrolife Intellectual Property GmbH · 2011
- This deviceK171937 Microlife Upper Arm Automatic Digital Blood Pressure MonitorMicrolife Intellectual Property GmbH · 2018
- Descendant · cites it directly · 0 of its ownK253306 BioTracker 2.0Biotracker, LLC · 2026
Most influential descendants
Showing 1 of 1 · See all- K253306BioTracker 2.0Biotracker, LLC · 2026 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −8 | K903134 | Omron Auto Oscillometric Dig BP Mont/Hem-704C 705C | Omron Marshall Products, Inc. | 1991 | — |
| −7 | K970211 | Microlife Automatic Blood Pressure Monitor | Micro Weiss Electronics | 1998 | — |
| −6 | K013485 | Microlife Upper Arm Automatic Blood Pressure Monitor, Model BP-3BTO-1, with… | Microlife Corp. | 2002 | — |
| −5 | K041411 | Microlife Upper Arm Blood Pressure Monitor, Model BP-3BTO-AP | Microlife Corp. | 2004 | — |
| −4 | K060686 | Microlife Automatic Blood Pressure Monitor, Model BP3AC1-1PC | Microlife Intellectual Property GmbH | 2006 | — |
| −3 | K073198 | Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model Watchbp… | Microlife Intellectual Property GmbH | 2008 | — |
| −2 | K082357 | Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Modelwatchbp… | Microlife Intellectual Property GmbH | 2008 | — |
| −1 | K112845 | Microlife Upper Arm Automatic Digital Blood Pressure Monitor | Microlife Intellectual Property GmbH | 2011 | — |
| 0 (this device) | K171937 | Microlife Upper Arm Automatic Digital Blood Pressure Monitor | Microlife Intellectual Property GmbH | 2018 | — |
| +1 | K253306 | BioTracker 2.0 | Biotracker, LLC | 2026 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1987 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 0 |
| 2006 | 1 | 0 |
| 2008 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2026 | 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.
Planning a device in DXN? 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 DXN device
- #1 K222125 Arm Blood Pressure Monitor, models AOJ-30A…score 18.5 · 8 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 |
|---|---|---|---|
| * | K112845 | Microlife Upper Arm Automatic Digital Blood Pressure MonitorSummary page 4…e (Predicate Device): Primary Predicate: a. Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model WatchBP Office ABI (TWIN200 ABI), K112845, Microlife Intellectual Property GmbH. Reference Predicate: b. Microlife Automatic Talking Blood Pressure Monitor,… | 2011 |
| † | K111652 | Microlife Automatic Talking Blood Pressure Monitor | 2011 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K253306 | BioTracker 2.0 | 2026 | 0 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 27 years and passes through 4 companies; a new generation was cleared every 3.1 years on median.
- None of the 26 ancestors has a recall.
- Of its descendants, K253306 (Biotracker, LLC, 2026) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K112845.
How does its category compare?
All DXN devicesDXN System, Measurement, Blood-Pressure, Non-Invasive: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.
FDA decisions per year · DXN
28in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DXN
142in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DXN
3in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DXN
239in 2025
MAUDE reports naming product code DXN, 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 | 27 | 118 | 0 | 21 |
| 2008 | 23 | 82 | 1 | 8 |
| 2009 | 46 | 73 | 3 | 17 |
| 2010 | 43 | 94 | 0 | 14 |
| 2011 | 34 | 72 | 1 | 10 |
| 2012 | 36 | 116 | 0 | 19 |
| 2013 | 34 | 150 | 1 | 72 |
| 2014 | 29 | 133 | 0 | 47 |
| 2015 | 30 | 97 | 0 | 62 |
| 2016 | 30 | 144 | 1 | 54 |
| 2017 | 33 | 184 | 0 | 90 |
| 2018 | 22 | 235 | 0 | 617 |
| 2019 | 33 | 156 | 1 | 96 |
| 2020 | 24 | 198 | 0 | 130 |
| 2021 | 23 | 190 | 0 | 162 |
| 2022 | 25 | 137 | 0 | 155 |
| 2023 | 35 | 182 | 0 | 162 |
| 2024 | 17 | 107 | 3 | 270 |
| 2025 | 28 | 142 | 0 | 239 |
| 2026 | 29 | 147 | 0 | — |
What is it indicated for?
The Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model WatchBP Office Central (TWIN200 CBP) is a device intended to measure the systolic and diastolic blood pressure, pulse rate, Mean Arterial Pressure (MAP), ankle-arm blood pressure and calculates Pulse Pressure (PP) and Ankle Brachial Index (ABI) of an adult individual with arm circumference sizes ranging from 22-42 cm and ankle circumference sizes ranging from 22-32 cm. It uses a…
Read the full statement (221 words)
The Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model WatchBP Office Central (TWIN200 CBP) is a device intended to measure the systolic and diastolic blood pressure, pulse rate, Mean Arterial Pressure (MAP), ankle-arm blood pressure and calculates Pulse Pressure (PP) and Ankle Brachial Index (ABI) of an adult individual with arm circumference sizes ranging from 22-42 cm and ankle circumference sizes ranging from 22-32 cm. It uses a non-invasive oscillometric technique using one (single arm) or two (dual arm measurement) inflatable cuffs wrapped around the upper arms and one inflatable cuff wrapped around the ankle (ABI).
The device provides aortic blood pressure parameters, includes central systolic blood pressure (cSBP), central pulse pressure (cPP) and central diastolic pressure (cDBP), non-invasively through the use of a brachial cuff.
The device detects the appearance of atrial fibrillation during measurement and gives a warning signal together with the measured blood pressure value if atrial fibrillation is detected.
The device can be connected to a personal computer (PC) running the WatchBP Analyzer Office software. The measured patient data can be transferred from the blood pressure monitor to the PC by means of a USB cable connection.
The blood pressure monitor is an automated digital professional clinical device for measuring blood pressure in upper arm and ankle in adults.
The device is for hospital use only.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K171937 · printed Nov 6, 2026
Cite this page
510(k) Report. “K171937: Microlife Upper Arm Automatic Digital Blood Pressure Monitor.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K171937
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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