510(k) Report

510(k) · Cleared

Cleared

External upper limb tremor stimulator

K182706510(k) SpecialCleared Oct 25, 201828-day reviewClass II21 CFR 882.5897

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

Cala Health, Inc. · QBC External Upper Limb Tremor Stimulator

Cleared on Oct 25, 2018 as substantially equivalent to DEN170028 (Cala Health, Inc., 2018) after a 28-day review. Its family tree reaches back 1 generation to 2018. 7 later devices descend from it.

Decided
Oct 25, 2018
Review
28 days
Class
Class II
Product code
QBC
Recalls
None
Predicates
1

Its longest line of descent runs back 1 generation to DEN170028 (2018). 7 later devices descend from it, 3 citing it directly.

Descendants, by year cleared 2021: 1 descendant cleared2022: 1 descendant cleared2026: 2 descendants cleared2025: 2 descendants cleared2024: 1 descendant clearedDEN170028 · Cala ONE · Cala Health, Inc. · 2018201620182020202220242026
Descendants, by generation 1 generation forward: 3 descendants2 generations forward: 2 descendants3 generations forward: 1 descendant4 generations forward: 1 descendant DEN170028 · Cala ONE · Cala Health, Inc. · 20180
  1. Root · 1 generation backDEN170028 Cala ONECala Health, Inc. · 2018
  2. This deviceK182706 External upper limb tremor stimulatorCala Health, Inc. · 2018
  3. Descendant · cites it directly · 5 of its ownK203288 Cala TrioCala Health, Inc. · 2021
  4. Descendant · cites it directly · 3 of its ownK222237 Cala kIQCala Health, Inc. · 2022
  5. Descendant · 2 generations on · 2 of its ownK242259 Cala kIQCala Health, Inc. · 2024
  6. Descendant · 3 generations on · 1 of its ownK243848 Cala kIQCala Health, Inc. · 2025
  7. Descendant · 4 generations on · 0 of its ownK253587 Cala kIQ PlusCala Health, Inc. · 2026

Showing 5 of 7 descendants. See all descendants

Descendants cleared per year

2021: 12022: 12024: 12025: 22026: 2
2021high 2 (2025) · low 0 (2023)2026

Most influential descendants

Showing 5 of 7 · See all
  • K203288Cala TrioCala Health, Inc. · 2021 · cites it directly5descendants
  • K222237Cala kIQCala Health, Inc. · 2022 · cites it directly3descendants
  • K242259Cala kIQCala Health, Inc. · 2024 · 2 generations on2descendants
  • K243848Cala kIQCala Health, Inc. · 2025 · 3 generations on1descendant
  • K253587Cala kIQ PlusCala Health, Inc. · 2026 · 4 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1DEN170028Cala ONECala Health, Inc.2018—
0 (this device)K182706External upper limb tremor stimulatorCala Health, Inc.2018—
+1K203288Cala TrioCala Health, Inc.2021—
+1K222237Cala kIQCala Health, Inc.2022—
+2K242259Cala kIQCala Health, Inc.2024—
+3K243848Cala kIQCala Health, Inc.2025—
+4K253587Cala kIQ PlusCala Health, Inc.2026—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202110
202210
202410
202520
202620
FIG. 1 — Lineage of K182706, 2018–2026Source: 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 QBC? 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 QBC device

  1. #1 K243848 Cala kIQscore 12.9 · 5 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? (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
*DEN170028Cala ONE
Summary page 4
…r Regulation: 21 CFR 882.5897 Product Code: QBC III. Predicate Device Name: Cala ONE Prior submission: DEN170028 IV. Description of Device and Modification As described in DEN170028, the Cala ONE is a small, lightweig…
Cala Health, Inc.2018—

Also cleared against DEN170028: 3 other devices →

What descends from it? (7)

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

NumberDeviceApplicantDecidedDescendants
K203288Cala TrioCala Health, Inc.20215
K222237Cala kIQCala Health, Inc.20223
K251517Encora X1Encora, Inc.20260

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?

  • Its one ancestor has no recall.
  • Of its descendants, K203288 (Cala Health, Inc., 2021) has gone furthest, with 5 descendants of its own.
  • 3 other devices also cite its predicate DEN170028.

How does its category compare?

All QBC devices

QBC External Upper Limb Tremor Stimulator: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.

FDA decisions per year · QBC

2in 2025

2018: 22021: 12022: 12024: 12025: 22026 (partial year): 2
2007high 2 (2018) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QBC

Too few QBC 510(k)s in any year since 2007 to give a median.

Recalls per year · QBC

No recall names QBC since 2007.

Adverse event reports per year · QBC

1in 2025

2021: 12022: 12023: 12024: 12025: 1
2007high 1 (2021) · low 0 (2007)2025

MAUDE reports naming product code QBC, 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
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20182—00
20190—00
20200—00
20211—01
20221—01
20230—01
20241—01
20252—01
20262—0—

What is it indicated for?

The Cala ONE device is indicated to aid in the transient relief of hand tremors in the treated hand following stimulation in adults with essential tremor.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K182706: External upper limb tremor stimulator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K182706

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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