510(k) Report

510(k) · Cleared

Cleared

S-Patch (S-Patch ExL)

K233906510(k) SpecialCleared Feb 16, 202466-day reviewClass II21 CFR 870.2800

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

Wellysis Corp. · DSH Recorder, Magnetic Tape, Medical

Cleared on Feb 16, 2024 as substantially equivalent to K231289 (Wellysis Corp., 2023) after a 66-day review. Its family tree reaches back 7 generations to 1996.

Decided
Feb 16, 2024
Review
66 days
Class
Class II
Product code
DSH
Recalls
None
Predicates
1

Its longest line of descent runs back 7 generations to K950944 (1996). 9 ancestors in all. No later device cites it as a predicate yet.

  1. Root · 7 generations backK950944 Ambulatory (Holter) Recording SystemBiosensor Corp. · 1996
  2. 6 generations backK993618 DXP1000 Holter RecorderBraemar Corp. · 1999
  3. 5 generations backK113176 Mysense HeartCardiac Science Corporation · 2011
  4. 4 generations backK131190 MypatchDms-Service, LLC · 2013
  5. 3 generations backK160704 myPatch-sDms-Service, LLC · 2016
  6. 2 generations backK171410 ePatchBraemar Manufacturing, LLC · 2018
  7. 1 generation backK231289 S-Patch Ex Wearable ECG PatchWellysis Corp. · 2023
  8. This deviceK233906 S-Patch (S-Patch ExL)Wellysis Corp. · 2024
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−7K950944Ambulatory (Holter) Recording SystemBiosensor Corp.1996—
−6K993618DXP1000 Holter RecorderBraemar Corp.1999—
−5K113176Mysense HeartCardiac Science Corporation2011—
−4K131190MypatchDms-Service, LLC2013—
−3K160704myPatch-sDms-Service, LLC2016—
−2K171410ePatchBraemar Manufacturing, LLC2018—
−1K231289S-Patch Ex Wearable ECG PatchWellysis Corp.2023—
0 (this device)K233906S-Patch (S-Patch ExL)Wellysis Corp.2024—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200910
201210
FIG. 1 — Lineage of K233906, 1996–2024Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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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 DSH? 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 DSH device

  1. #1 K260157 LifeLens Physiological Monitorscore 17.9 · 22 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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.

TypeNumberDeviceApplicantDecidedRecalls
*K231289S-Patch Ex Wearable ECG Patch
Summary page 5
…fication of Predicate Device(s) The identified predicate device within this submission is shown as following: Predicate Device 510(k) Number K231289 Trade/Device/Model Name S-Patch Ex Device Classification Name Medical magnetic tape recorder Regulat…
Wellysis Corp.2023—

Also cleared against K231289: 2 other devices →

What descends from it?

No later submission names this one as a predicate yet.

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 28 years and passes through 6 companies; a new generation was cleared every 2.7 years on median.
  • None of the 9 ancestors has a recall.
  • 2 other devices also cite its predicate K231289.

How does its category compare?

All DSH devices

DSH Recorder, Magnetic Tape, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.

FDA decisions per year · DSH

4in 2025

2007: 12008: 12009: 32010: 22011: 62012: 22013: 22014: 12015: 22016: 22017: 32018: 32019: 32020: 42021: 42022: 42023: 62024: 22025: 42026 (partial year): 2
2007high 6 (2011) · low 1 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DSH

205in 2025

2009: 84 days median2011: 64 days median2017: 91 days median2018: 269 days median2019: 30 days median2020: 122 days median2021: 263 days median2022: 427 days median2023: 198 days median2025: 205 days median
2007high 427 (2022) · low 30 (2019)2026

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

Recalls per year · DSH

No recall names DSH since 2007.

Adverse event reports per year · DSH

213in 2025

2009: 12010: 82011: 32012: 12013: 22014: 32015: 82016: 62017: 312018: 302019: 762020: 912021: 1132022: 462023: 652024: 882025: 213
2007high 213 (2025) · low 0 (2007)2025

MAUDE reports naming product code DSH, 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
20071—00
20081—00
200938401
20102—08
201166403
20122—01
20132—02
20141—03
20152—08
20162—06
2017391031
20183269030
2019330076
20204122091
202142630113
20224427046
20236198065
20242—088
202542050213
20262—0—

What is it indicated for?

S-Patch ExL wearable ECG patch is indicated for use on patients who may be asymptomatic or who may suffer from transient symptoms such as palpitations, shortness of breath, dizziness, light headedness, pre-syncope, syncope, fatigue, chest pain and/or anxiety. S-Patch ExL wearable ECG patch is intended for use by patients 18 years or older.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K233906: S-Patch (S-Patch ExL).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K233906

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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