510(k) Report

510(k) · Cleared

Cleared

Microlife Upper Arm Blood Pressure Monitor, Model BP-3BTO-AP

K041411510(k) TraditionalCleared Jul 21, 200455-day reviewClass II21 CFR 870.1130

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Microlife Corp. · DXN System, Measurement, Blood-Pressure, Non-Invasive

Cleared on Jul 21, 2004 as substantially equivalent to K013485 (Microlife Corp., 2002) and 1 other predicate after a 55-day review. Its family tree reaches back 3 generations to 1991. 120 later devices descend from it.

Decided
Jul 21, 2004
Review
55 days
Class
Class II
Product code
DXN
Recalls
None
Predicates
2

Its longest line of descent runs back 3 generations to K903134 (1991). 4 ancestors in all. 120 later devices descend from it, 6 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2002: 1 other ancestor2009: 5 descendants cleared2006: 2 descendants cleared2007: 3 descendants cleared2013: 4 descendants cleared2008: 6 descendants cleared2014: 2 descendants cleared2015: 5 descendants cleared2012: 4 descendants cleared2011: 6 descendants cleared2016: 3 descendants cleared2018: 5 descendants cleared2021: 11 descendants cleared2010: 6 descendants cleared2017: 3 descendants cleared2023: 14 descendants cleared2019: 6 descendants cleared2020: 4 descendants cleared2022: 6 descendants cleared2025: 7 descendants cleared2026: 10 descendants cleared2024: 8 descendants clearedK903134 · Omron Auto Oscillometric Dig BP Mont/Hem-704C 705C · Omron Marshall Products, Inc. · 1991K970211 · Microlife Automatic Blood Pressure Monitor · Micro Weiss Electronics · 1998K013485 · Microlife Upper Arm Automatic Blood Pressure Monitor, Model BP-3BTO-1, with Optional Thermal Printer, Model PR 1KA1 · Microlife Corp. · 20021990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor 1 generation forward: 6 descendants2 generations forward: 18 descendants3 generations forward: 20 descendants4 generations forward: 17 descendants5 generations forward: 18 descendants6 generations forward: 9 descendants7 generations forward: 10 descendants8 generations forward: 8 descendants9 generations forward: 7 descendants10 generations forward: 7 descendants K013485 · Microlife Upper Arm Automatic Blood Pressure Monitor, Model BP-3BTO-1, with Optional Thermal Printer, Model PR 1KA1 · Microlife Corp. · 2002K970211 · Microlife Automatic Blood Pressure Monitor · Micro Weiss Electronics · 1998K903134 · Omron Auto Oscillometric Dig BP Mont/Hem-704C 705C · Omron Marshall Products, Inc. · 19910+5+10
  1. Root · 3 generations backK903134 Omron Auto Oscillometric Dig BP Mont/Hem-704C 705COmron Marshall Products, Inc. · 1991
  2. 2 generations backK970211 Microlife Automatic Blood Pressure MonitorMicro Weiss Electronics · 1998
  3. 1 generation backK013485 Microlife Upper Arm Automatic Blood Pressure Monitor, Model…Microlife Corp. · 2002
  4. This deviceK041411 Microlife Upper Arm Blood Pressure Monitor, Model BP-3BTO-APMicrolife Corp. · 2004
  5. Descendant · cites it directly · 86 of its ownK060686 Microlife Automatic Blood Pressure Monitor, Model BP3AC1-1PCMicrolife Intellectual Property GmbH · 2006
  6. Descendant · 2 generations on · 46 of its ownK081590 YA Horng Arm Type Digital Blood Pressure Monitor, Models BP-600…Ya Horng Electronic Co., Ltd. · 2008
  7. Descendant · 3 generations on · 45 of its ownK083093 Cheetah ReliantCheetah Medical, Inc. · 2008 · Recalled
  8. Descendant · 2 generations on · 36 of its ownK073198 Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model…Microlife Intellectual Property GmbH · 2008
  9. Descendant · 4 generations on · 35 of its ownK101487 Cheetah Nicom SystemCheetah Medical, Inc. · 2010

Showing 5 of 120 descendants. See all descendants

Descendants cleared per year

2006: 22007: 32008: 62009: 52010: 62011: 62012: 42013: 42014: 22015: 52016: 32017: 32018: 52019: 62020: 42021: 112022: 62023: 142024: 82025: 72026: 10
2006high 14 (2023) · low 2 (2006)2026

Most influential descendants

Showing 5 of 120 · See all
  • K060686Microlife Automatic Blood Pressure Monitor, Model BP3AC1-1PCMicrolife Intellectual Property GmbH · 2006 · cites it directly86descendants
  • K081590YA Horng Arm Type Digital Blood Pressure Monitor, Models BP-600, BP-600R, BP-600U…Ya Horng Electronic Co., Ltd. · 2008 · 2 generations on46descendants
  • K083093Cheetah ReliantCheetah Medical, Inc. · 2008 · 3 generations on45descendants
  • K073198Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model Watchbp Home…Microlife Intellectual Property GmbH · 2008 · 2 generations on36descendants
  • K101487Cheetah Nicom SystemCheetah Medical, Inc. · 2010 · 4 generations on35descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−3K903134Omron Auto Oscillometric Dig BP Mont/Hem-704C 705COmron Marshall Products, Inc.1991—
−2K970211Microlife Automatic Blood Pressure MonitorMicro Weiss Electronics1998—
−1K013485Microlife Upper Arm Automatic Blood Pressure Monitor, Model BP-3BTO-1, with…Microlife Corp.2002—
0 (this device)K041411Microlife Upper Arm Blood Pressure Monitor, Model BP-3BTO-APMicrolife Corp.2004—
+1K060686Microlife Automatic Blood Pressure Monitor, Model BP3AC1-1PCMicrolife Intellectual Property GmbH2006—
+2K081590YA Horng Arm Type Digital Blood Pressure Monitor, Models BP-600, BP-600R…Ya Horng Electronic Co., Ltd.2008—
+3K083093Cheetah ReliantCheetah Medical, Inc.20081
+2K073198Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model Watchbp…Microlife Intellectual Property GmbH2008—
+4K101487Cheetah Nicom SystemCheetah Medical, Inc.2010—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200210

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200620
200730
200860
200950
201060
201160
201240
201340
201420
201550
201630
201730
201850
201960
202040
2021110
202260
2023140
202480
202570
2026100
FIG. 1 — Lineage of K041411, 1991–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

Notable FDA decisions, review times and new Class I recalls. See an issue.

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. #1 K222125 Arm Blood Pressure Monitor, models AOJ-30A…score 18.5 · 8 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (2)

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.

TypeNumberDeviceApplicantDecidedRecalls
*K013485Microlife Upper Arm Automatic Blood Pressure Monitor, Model BP-3BTO-1, with Optional…
Summary page 1
…per Arm Automatic Blood Pressure Monitor, Model BP-3BTO-AP is substantially equivalent to the Microlife Automatic Blood Pressure Monitor, Model BP-3BTO-1, K# 013485, and, the A&D Medical Lifesource Blood Pressure Monitor, Model UA-787V, K#012472. 4. Device Description: The Mi…
Microlife Corp.2002—
*K012472A & D Medical Lifesource UA-781, UA781PC, & UA-781T Digital Blood Pressure Monitors
Summary page 1
…alent to the Microlife Automatic Blood Pressure Monitor, Model BP-3BTO-1, K# 013485, and, the A&D Medical Lifesource Blood Pressure Monitor, Model UA-787V, K#012472. 4. Device Description: The Microlife Upper Arm Automatic Blood Pressure Monitor, Model BP-3BTO-AP is designed…
A&D Engineering, Inc.2002—

Also cleared against K013485: 2 other devices →

What descends from it? (120)

See all 120

6 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K060686Microlife Automatic Blood Pressure Monitor, Model BP3AC1-1PCMicrolife Intellectual Property GmbH200686
K061471Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model BP3MC1-PCMicrolife Intellectual Property GmbH200632
K091434Truly Automatic Arm Blood Pressure MONITORDB21,DB31,DB22,DB23,DB71M,DB32,DB61M, DB62M…Truly Instrument Co., Ltd.200911
K073398Microlife Wrist Watch Blood Pressure Monitor, Model BP3MK1-3 (BP W100)Microlife Corp.20079
K070473Blood Pressure Monitor, Models ZSBP-Oxx and ZSBP-1XXZen Strong Medical Technology Co., Ltd.20074
K073397Microlife Upper Arm Manual Blood Pressure Monitor, Model BP3MR1-H (BP A50)Microlife Corp.20070

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 13 years and passes through 3 companies; a new generation was cleared every 3.7 years on median.
  • None of the 4 ancestors has a recall.
  • Of its descendants, K060686 (Microlife Intellectual Property GmbH, 2006) has gone furthest, with 86 descendants of its own.
  • 2 other devices also cite its predicate K013485.

How does its category compare?

All DXN devices

DXN System, Measurement, Blood-Pressure, Non-Invasive: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · DXN

28in 2025

2007: 272008: 232009: 462010: 432011: 342012: 362013: 342014: 292015: 302016: 302017: 332018: 222019: 332020: 242021: 232022: 252023: 352024: 172025: 282026 (partial year): 29
2007high 46 (2009) · low 17 (2024)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DXN

142in 2025

2007: 118 days median2008: 82 days median2009: 73 days median2010: 94 days median2011: 72 days median2012: 116 days median2013: 150 days median2014: 133 days median2015: 97 days median2016: 144 days median2017: 184 days median2018: 235 days median2019: 156 days median2020: 198 days median2021: 190 days median2022: 137 days median2023: 182 days median2024: 107 days median2025: 142 days median2026 (partial year): 147 days median
2007high 235 (2018) · low 72 (2011)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · DXN

3in 2024

2008: 12009: 32011: 12013: 12016: 12019: 12024: 3
2007high 3 (2009) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · DXN

239in 2025

2007: 212008: 82009: 172010: 142011: 102012: 192013: 722014: 472015: 622016: 542017: 902018: 6172019: 962020: 1302021: 1622022: 1552023: 1622024: 2702025: 239
2007high 617 (2018) · low 8 (2008)2025

MAUDE reports naming product code DXN, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
200727118021
2008238218
20094673317
20104394014
20113472110
201236116019
201334150172
201429133047
20153097062
201630144154
201733184090
2018222350617
201933156196
2020241980130
2021231900162
2022251370155
2023351820162
2024171073270
2025281420239
2026291470—

What is it indicated for?

The Microlife Upper Arm Blood Pressure Monitor, Model BP 3BT0-AP, is a device intended to measure the systolic and diastolic blood pressure and pulse rate of an adult individual by using a non-invasive technique in which an inflatable cuff is wrapped around the upper arm.

The device detects the appearance of irregular heartbeat during measurement, and gives a warning signal with the reading once the irregular heartbeat is detected.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K041411: Microlife Upper Arm Blood Pressure Monitor, Model BP-3BTO-AP.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K041411

Report an extraction error

Tell us what is wrong; we check it against the FDA summary.

Are you the manufacturer?

Send a correction or an update to this page, for example a newer model or a public statement about a recall.

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