510(k) Report

510(k) · Cleared

Cleared

Ultrasonic Scaler, Models Uds-N1, Uds-N2. Uds-J, Uds-K, Uds-L

K053555510(k) TraditionalCleared Aug 21, 2006244-day reviewClass II21 CFR 872.4850

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

Guilin Woodpecker Medical Instrument Co., Ltd. · ELC Scaler, Ultrasonic

Cleared on Aug 21, 2006 after a 244-day review. The FDA summary names no predicate by number. 4 later devices descend from it.

Decided
Aug 21, 2006
Review
244 days
Class
Class II
Product code
ELC
Recalls
None
Predicates
0

4 later devices descend from it, 2 citing it directly.

Descendants, by year cleared 2023: 1 descendant cleared2015: 1 descendant cleared2017: 1 descendant cleared2024: 1 descendant cleared20052010201520202025
  1. This deviceK053555 Ultrasonic Scaler, Models Uds-N1, Uds-N2. Uds-J, Uds-K, Uds-LGuilin Woodpecker Medical Instrument Co., Ltd. · 2006
  2. Descendant · cites it directly · 2 of its ownK140233 Ultrasonic ScalerNanning Baolai Medical Instrument Co., Ltd. · 2015
  3. Descendant · 2 generations on · 1 of its ownK163414 Ultrasonic scalerNanning VV Dental Co., Ltd. · 2017
  4. Descendant · 3 generations on · 0 of its ownK240707 Ultrasonic Scaler…Shenzhen Micro Electric Intelligence Co., Ltd. · 2024
  5. Descendant · cites it directly · 0 of its ownK222096 Endo Ultrasonic ActivatorFoshan Coxo Medical Instrument Co., Ltd. · 2023

Most influential descendants

Showing 4 of 4 · See all
  • K140233Ultrasonic ScalerNanning Baolai Medical Instrument Co., Ltd. · 2015 · cites it directly2descendants
  • K163414Ultrasonic scalerNanning VV Dental Co., Ltd. · 2017 · 2 generations on1descendant
  • K240707Ultrasonic Scaler…Shenzhen Micro Electric Intelligence Co., Ltd. · 2024 · 3 generations on0descendants
  • K222096Endo Ultrasonic ActivatorFoshan Coxo Medical Instrument Co., Ltd. · 2023 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K053555Ultrasonic Scaler, Models Uds-N1, Uds-N2. Uds-J, Uds-K, Uds-LGuilin Woodpecker Medical Instrument Co., Ltd.2006—
+1K140233Ultrasonic ScalerNanning Baolai Medical Instrument Co., Ltd.2015—
+2K163414Ultrasonic scalerNanning VV Dental Co., Ltd.2017—
+3K240707Ultrasonic Scaler…Shenzhen Micro Electric Intelligence Co., Ltd.2024—
+1K222096Endo Ultrasonic ActivatorFoshan Coxo Medical Instrument Co., Ltd.2023—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201510
201710
202310
202410
FIG. 1 — Lineage of K053555, 2006–2024Source: 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 ELC? 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 ELC device

  1. #1 K260773 Varios Combi Pro2score 12.5 · 6 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?

The FDA summary names no predicate by number.

What descends from it? (4)

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

NumberDeviceApplicantDecidedDescendants
K140233Ultrasonic ScalerNanning Baolai Medical Instrument Co., Ltd.20152
K222096Endo Ultrasonic ActivatorFoshan Coxo Medical Instrument Co., Ltd.20230

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?

  • Of its descendants, K140233 (Nanning Baolai Medical Instrument Co., Ltd., 2015) has gone furthest, with 2 descendants of its own.

How does its category compare?

All ELC devices

ELC Scaler, Ultrasonic: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · ELC

2in 2025

2007: 62008: 42009: 42010: 42011: 32012: 12013: 132014: 62015: 52016: 32017: 22018: 12019: 42020: 12021: 32022: 22023: 52024: 42025: 22026 (partial year): 2
2007high 13 (2013) · low 1 (2012)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · ELC

104in 2024

2007: 92 days median2008: 216 days median2009: 121 days median2010: 201 days median2011: 122 days median2013: 174 days median2014: 193 days median2015: 150 days median2016: 88 days median2019: 192 days median2021: 196 days median2023: 258 days median2024: 104 days median
2007high 258 (2023) · low 88 (2016)2026

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

Recalls per year · ELC

2in 2022

2022: 2
2007high 2 (2022) · low 0 (2007)2026

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

Adverse event reports per year · ELC

284in 2025

2007: 122008: 582009: 1082010: 792011: 52012: 32013: 62014: 372015: 1352016: 1692017: 3562018: 2892019: 3022020: 1642021: 1662022: 1652023: 2102024: 2192025: 284
2007high 356 (2017) · low 3 (2012)2025

MAUDE reports naming product code ELC, 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
2007692012
20084216058
200941210108
20104201079
2011312205
20121—03
20131317406
20146193037
201551500135
20163880169
20172—0356
20181—0289
201941920302
20201—0164
202131960166
20222—2165
202352580210
202441040219
20252—0284
20262—0—

What is it indicated for?

Model :UDS-J/K/NIfN2

1. Removing supra and sub gingival calculus deposits and stains from the teeth

2. Periodontal pocket lavage with simultaneous ultrasonic tip movement

Model: UDS-L :

1. Removing supra and sub gingival calculus deposits and stains from the teeth

2. Periodontal pocket lavage with simultaneous ultrasonic tip movement

3. Preparing, cleaning, and irrigating root canals

4. Retrograde preparation of root canals

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K053555: Ultrasonic Scaler, Models Uds-N1, Uds-N2. Uds-J, Uds-K, Uds-L.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K053555

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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