510(k) Report

510(k) · Cleared

Recalled · 2010

Microspeed Uni Motor System

K053526510(k) SpecialCleared Jan 18, 200630-day reviewClass II21 CFR 882.4360Recalls 1

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

Aesculap, Inc. · HBC Motor, Drill, Electric

Cleared on Jan 18, 2006 as substantially equivalent to K003612 (Aesculap, Inc., 2001) and 1 other predicate after a 30-day review. Its family tree reaches back 1 generation to 1994. 12 later devices descend from it. It has been recalled once.

Decided
Jan 18, 2006
Review
30 days
Class
Class II
Product code
HBC
Recalls
1
Predicates
2

Its longest line of descent runs back 1 generation to K943589 (1994). 2 ancestors in all. 12 later devices descend from it, 3 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2001: 1 other ancestor2008: 1 descendant cleared2016: 1 descendant cleared2013: 1 descendant cleared2021: 3 descendants cleared2022: 1 descendant cleared2024: 3 descendants cleared2018: 1 descendant cleared2025: 1 descendant clearedK943589 · Stryker Total Performance System · Stryker Corp. · 19941990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor 1 generation forward: 3 descendants2 generations forward: 6 descendants3 generations forward: 3 descendants K943589 · Stryker Total Performance System · Stryker Corp. · 19940
  1. Root · 1 generation backK943589 Stryker Total Performance SystemStryker Corp. · 1994
  2. This deviceK053526 Microspeed Uni Motor SystemAesculap, Inc. · 2006
  3. Descendant · cites it directly · 6 of its ownK132264 PRIMADO2 Total Surgical SystemNakanishi, Inc. · 2013
  4. Descendant · cites it directly · 3 of its ownK152960 ELAN 4 Motor SystemAesculap, Inc. · 2016
  5. Descendant · 2 generations on · 1 of its ownK233638 VERZA™ High Speed DrillsGlobus Medical, Inc. · 2024
  6. Descendant · 2 generations on · 1 of its ownK213221 AMADEO, M-UK1015 (incl. attachments and accessories)W&H Dentalwerk Buermoss GmbH · 2022
  7. Descendant · 2 generations on · 1 of its ownK202120 P300 AttachmentNakanishi, Inc. · 2021

Showing 5 of 12 descendants. See all descendants

Descendants cleared per year

2008: 12013: 12016: 12018: 12021: 32022: 12024: 32025: 1
2008high 3 (2021) · low 0 (2009)2026

Most influential descendants

Showing 5 of 12 · See all
  • K132264PRIMADO2 Total Surgical SystemNakanishi, Inc. · 2013 · cites it directly6descendants
  • K152960ELAN 4 Motor SystemAesculap, Inc. · 2016 · cites it directly3descendants
  • K233638VERZA™ High Speed DrillsGlobus Medical, Inc. · 2024 · 2 generations on1descendant
  • K213221AMADEO, M-UK1015 (incl. attachments and accessories)W&H Dentalwerk Buermoss GmbH · 2022 · 2 generations on1descendant
  • K202120P300 AttachmentNakanishi, Inc. · 2021 · 2 generations on1descendant
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K943589Stryker Total Performance SystemStryker Corp.1994—
0 (this device)K053526Microspeed Uni Motor SystemAesculap, Inc.2006—
+1K132264PRIMADO2 Total Surgical SystemNakanishi, Inc.2013—
+1K152960ELAN 4 Motor SystemAesculap, Inc.2016—
+2K233638VERZA™ High Speed DrillsGlobus Medical, Inc.2024—
+2K213221AMADEO, M-UK1015 (incl. attachments and accessories)W&H Dentalwerk Buermoss GmbH2022—
+2K202120P300 AttachmentNakanishi, Inc.2021—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200110

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200810
201310
201610
201810
202130
202210
202430
202510
FIG. 1 — Lineage of K053526, 1994–2025Source: 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 HBC? 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 HBC device

  1. #1 K254174 Surgical Power Systemscore 14.7 · 10 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
*K003612Microspeed EC Motorsystem GD650/GD653
Summary page 1
…HBC SUBSTANTIAL EQUIVALENCE Aesculap®~, Inc. believes that the Microspeed Uni Motor System is substantially equivalent to: * Aesculap Microspeed EC (K003612) * Stryker Total Performance System (K943589) DEVICE DESCRIPTION The Microspeed Uni is an electronrc, high-speed motor system…
Aesculap, Inc.2001—
*K943589Stryker Total Performance System
Summary page 1
…sculap®~, Inc. believes that the Microspeed Uni Motor System is substantially equivalent to: * Aesculap Microspeed EC (K003612) * Stryker Total Performance System (K943589) DEVICE DESCRIPTION The Microspeed Uni is an electronrc, high-speed motor system, which allows high-speed dissection up to 80,00…
Stryker Corp.1994—

Also cleared against K003612: 2 other devices →

What descends from it? (12)

See all 12

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

NumberDeviceApplicantDecidedDescendants
K132264PRIMADO2 Total Surgical SystemNakanishi, Inc.20136
K152960ELAN 4 Motor SystemAesculap, Inc.20163
K080444Conmed Linvatec Osprey Drill SystemConmed Linvatec20080

Has anything in its family been recalled? (0 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Nov 22, 2010Not classifiedZ-1474-2011Software designPotential safety issue in that the control box can misinterpret the information sent from the low speed motor if the control magnet inside the motor changes its posthion.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • None of the 2 ancestors has a recall.
  • Of its descendants, K132264 (Nakanishi, Inc., 2013) has gone furthest, with 6 descendants of its own.
  • 2 other devices also cite its predicate K003612.

How does its category compare?

All HBC devices

HBC Motor, Drill, Electric: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · HBC

2in 2024

2008: 12009: 12013: 22014: 12016: 12017: 22018: 12019: 12021: 12022: 22024: 22026 (partial year): 1
2007high 2 (2013) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HBC

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

Recalls per year · HBC

9in 2022

2010: 12011: 92014: 12022: 9
2007high 9 (2011) · low 0 (2007)2026

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

Adverse event reports per year · HBC

635in 2025

2007: 52008: 62009: 22010: 12011: 12012: 32013: 10,6702014: 2,6432015: 1,9532016: 2,5412017: 2,0792018: 1,7792019: 1,7032020: 1,3042021: 9462022: 7602023: 6632024: 4272025: 635
2007high 10,670 (2013) · low 1 (2010)2025

MAUDE reports naming product code HBC, 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—05
20081—06
20091—02
20100—11
20110—91
20120—03
20132—010,670
20141—12,643
20150—01,953
20161—02,541
20172—02,079
20181—01,779
20191—01,703
20200—01,304
20211—0946
20222—9760
20230—0663
20242—0427
20250—0635
20261—0—

What is it indicated for?

Aesculap's Microspeed Uni is intended for high speed cutting, sawing, drilling and manipulation of soft tissue and bone in the fields of Spine, ENT, Neuro, and Maxillofacial Surgery.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K053526: Microspeed Uni Motor System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K053526

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