510(k) · Cleared
ClearedAnswatch Wrist Monitor Model TS-0411
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Taiwan Scientific Corporation · DXN System, Measurement, Blood-Pressure, Non-Invasive
Cleared on Sep 17, 2013 as substantially equivalent to K990638 (Genmed, Inc., 1999) and 4 other predicates after a 348-day review. Its family tree reaches back 4 generations to 1997. 2 later devices descend from it.
- Decided
- Sep 17, 2013
- Review
- 348 days
- Class
- Class II
- Product code
- DXN
- Recalls
- None
- Predicates
- 5
Its longest line of descent runs back 4 generations to K963725 (1997). 20 ancestors in all, the oldest K820885 (1982). 2 later devices descend from it, 2 citing it directly.
- Root · 4 generations backK963725 Model CG-2206 Personal Electrocardiogram (Ecg) Transmitter Device…Card Guard, Ltd. · 1997
- 3 generations backK012012 Ecg HomeH&C Medical Devices Spa · 2002
- 2 generations backK042814 ReadmyheartDailycare Biomedical, Inc. · 2005
- 1 generation backK050620 Readmyheart, Model RMH3.0Dailycare Biomedical, Inc. · 2005
- This deviceK123130 Answatch Wrist Monitor Model TS-0411Taiwan Scientific Corporation · 2013
- Descendant · cites it directly · 0 of its ownK213699 CareTaker Monitor AppCaretaker Medical, LLC · 2022
- Descendant · cites it directly · 0 of its ownK201914 HRVWatch-Mini Wrist MonitorTaiwan Scientific Corporation · 2021
Most influential descendants
Showing 2 of 2 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K963725 | Model CG-2206 Personal Electrocardiogram (Ecg) Transmitter Device (Modified) | Card Guard, Ltd. | 1997 | — |
| −3 | K012012 | Ecg Home | H&C Medical Devices Spa | 2002 | — |
| −2 | K042814 | Readmyheart | Dailycare Biomedical, Inc. | 2005 | — |
| −1 | K050620 | Readmyheart, Model RMH3.0 | Dailycare Biomedical, Inc. | 2005 | — |
| 0 (this device) | K123130 | Answatch Wrist Monitor Model TS-0411 | Taiwan Scientific Corporation | 2013 | — |
| +1 | K213699 | CareTaker Monitor App | Caretaker Medical, LLC | 2022 | — |
| +1 | K201914 | HRVWatch-Mini Wrist Monitor | Taiwan Scientific Corporation | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1982 | 1 | 0 |
| 1990 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2021 | 1 | 0 |
| 2022 | 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? (5)
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 |
|---|---|---|---|
| * | K990638 | Aneroid SphygmomanometerSummary page 1…asive blood pressure meter system Classification Name: Noninvasive blood pressure measurement system 5.4 Predicate Devices: The Aneroid Mercury Sphygmomanometer K990638 The KD-788 Wrist Measurement Electronic Blood Pressure Monitor K052450 The Philips Pagewriter Touch Cardiograph K020708 The Po… | 1999 |
| * | K052450 | KD-788 Wrist Measurement Electronic Blood Pressure MonitorSummary page 1…d pressure measurement system 5.4 Predicate Devices: The Aneroid Mercury Sphygmomanometer K990638 The KD-788 Wrist Measurement Electronic Blood Pressure Monitor K052450 The Philips Pagewriter Touch Cardiograph K020708 The Portable ANSiscope K071 188 The ReadMyHeart - Model RMHI13 K0… | 2006 |
| * | K020708 | Philips Pagewriter Touch Cardiograph, Model M5000A SeriesSummary page 1…s: The Aneroid Mercury Sphygmomanometer K990638 The KD-788 Wrist Measurement Electronic Blood Pressure Monitor K052450 The Philips Pagewriter Touch Cardiograph K020708 The Portable ANSiscope K071 188 The ReadMyHeart - Model RMHI13 K050620 5.5 Device Description: The non-invasive bloo… | 2002 |
| * | K071168 | The Portable Ansiscope Our reading of the summary gave K071188, FDA’s number for Modification to Jbaids Anthrax Detection System (Idaho Technology, Inc.). Corrected to the number one digit away whose FDA name carries the summary’s words for the device, “Portable ANSiscope”. | 2007 |
| * | K050620 | Readmyheart, Model RMH3.0Summary page 1…Electronic Blood Pressure Monitor K052450 The Philips Pagewriter Touch Cardiograph K020708 The Portable ANSiscope K071 188 The ReadMyHeart - Model RMHI13 K050620 5.5 Device Description: The non-invasive blood pressure measuring system HRV Watch Wrist Monitor measures blood pressures (BP) (… | 2005 |
What descends from it? (2)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 16 years and passes through 4 companies; a new generation was cleared every 4.4 years on median.
- 1 of the 20 ancestors has a recall of any class.
- Of its descendants, K213699 (Caretaker Medical, LLC, 2022) has gone furthest, with 0 descendants of its own.
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. 2013, 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?
Non-invasive measurement of systolic pressure (SYS), diastolic pressure (DIA), heart rate (HIR), heart rate variability (HRV), and irregular heartbeats (Ir-rHB) for professionals at office or patients at home under the supervision of a trained professional. The device is not intended for ambulatory use. The device is designed for wearing on the left wrist only. The device provides a I-WV parameter which is only mathematical, analysis and is not intended to produce any interpretation of those measurements or any kind of diagnosis.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K123130 · printed Nov 6, 2026
Cite this page
510(k) Report. “K123130: Answatch Wrist Monitor Model TS-0411.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K123130
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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