510(k) Report

510(k) · Cleared

Cleared

Michelangelo Bunion System - Mabs, Model: MA6000

K091763510(k) SpecialCleared Aug 14, 200959-day reviewClass II21 CFR 888.3030

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

Instratek, Inc. · HTN Washer, Bolt Nut

Cleared on Aug 14, 2009 as substantially equivalent to K082384 (Instratek, Inc., 2008) and 1 other predicate after a 59-day review. Its family tree reaches back 9 generations to 1979. 4 later devices descend from it.

Decided
Aug 14, 2009
Review
59 days
Class
Class II
Product code
HTN
Recalls
None
Predicates
2

Its longest line of descent runs back 9 generations to K792022 (1979). 43 ancestors in all. 4 later devices descend from it, 2 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2004: 3 other ancestors2002: 1 other ancestor2001: 4 other ancestors1999: 3 other ancestors1996: 7 other ancestors2003: 1 other ancestor1998: 2 other ancestors1997: 4 other ancestors1994: 2 other ancestors1995: 3 other ancestors1992: 1 other ancestor1990: 2 other ancestors1993: 1 other ancestor2011: 1 descendant cleared2019: 1 descendant cleared2020: 1 descendant cleared2024: 1 descendant clearedK792022 · Herbert Bone Screw · Zimmer, Inc. · 1979 · recalledK974876 · Bionx Distal Radius Screw · Bionx Implants, Inc. · 1998K992947 · Cannulated Smartscrew Models 224540C, 224570C · Bionx Implants, Ltd. · 1999K012001 · Smartscrew · Bionx Implants, Ltd. · 2001K030900 · Inion Otps Biodegradable Fixaton System · Inion, Ltd. · 2003K043248 · Tightrope Syndesmosis Repair Kit, Titanium, Model AR-8920DS; Stainless Steel. Model AR-8921DS · Arthrex, Inc. · 2005K052776 · Tightrope Acromioclavicular (AC) Device, Titanium, Stainless Steel , Models AR-2257, AR-TBD · Arthrex, Inc. · 2005K061925 · Mini Tightrope Repair Kit, Model AR-8911DS · Arthrex, Inc. · 2006K082384 · Hav-Lok Bunion Correction System · Instratek, Inc. · 200819801990200020102020
  1. Root · 9 generations backK792022 Herbert Bone ScrewZimmer, Inc. · 1979 · Recalled
  2. 5 generations between
  3. 3 generations backK052776 Tightrope Acromioclavicular (AC) Device, Titanium, Stainless Steel…Arthrex, Inc. · 2005
  4. 2 generations backK061925 Mini Tightrope Repair Kit, Model AR-8911DSArthrex, Inc. · 2006
  5. 1 generation backK082384 Hav-Lok Bunion Correction SystemInstratek, Inc. · 2008
  6. This deviceK091763 Michelangelo Bunion System - Mabs, Model: MA6000Instratek, Inc. · 2009
  7. Descendant · cites it directly · 2 of its ownK111032 CMC Cable FixInstratek, Inc. · 2011
  8. Descendant · 2 generations on · 1 of its ownK200332 EXPERT - Joint Fixation SystemGM Dos Reis Industria e Comercio Ltda. · 2020
  9. Descendant · 3 generations on · 0 of its ownK242311 EXPERT - Flexible Joint Fixation SystemGM Dos Reis Industria e Comercio Ltda. · 2024
  10. Descendant · cites it directly · 0 of its ownK183094 CyclaPlex Correction SystemCycla Orthopedics, Ltd. · 2019
Show all 9 generations
  1. Root · 9 generations backK792022 Herbert Bone ScrewZimmer, Inc. · 1979 · Recalled
  2. 8 generations backK974876 Bionx Distal Radius ScrewBionx Implants, Inc. · 1998
  3. 7 generations backK992947 Cannulated Smartscrew Models 224540C, 224570CBionx Implants, Ltd. · 1999
  4. 6 generations backK012001 SmartscrewBionx Implants, Ltd. · 2001
  5. 5 generations backK030900 Inion Otps Biodegradable Fixaton SystemInion, Ltd. · 2003
  6. 4 generations backK043248 Tightrope Syndesmosis Repair Kit, Titanium, Model AR-8920DS…Arthrex, Inc. · 2005
  7. 3 generations backK052776 Tightrope Acromioclavicular (AC) Device, Titanium, Stainless Steel…Arthrex, Inc. · 2005
  8. 2 generations backK061925 Mini Tightrope Repair Kit, Model AR-8911DSArthrex, Inc. · 2006
  9. 1 generation backK082384 Hav-Lok Bunion Correction SystemInstratek, Inc. · 2008
  10. This deviceK091763 Michelangelo Bunion System - Mabs, Model: MA6000Instratek, Inc. · 2009

Most influential descendants

Showing 4 of 4 · See all
  • K111032CMC Cable FixInstratek, Inc. · 2011 · cites it directly2descendants
  • K200332EXPERT - Joint Fixation SystemGM Dos Reis Industria e Comercio Ltda. · 2020 · 2 generations on1descendant
  • K242311EXPERT - Flexible Joint Fixation SystemGM Dos Reis Industria e Comercio Ltda. · 2024 · 3 generations on0descendants
  • K183094CyclaPlex Correction SystemCycla Orthopedics, Ltd. · 2019 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−9K792022Herbert Bone ScrewZimmer, Inc.19796
−8K974876Bionx Distal Radius ScrewBionx Implants, Inc.1998—
−7K992947Cannulated Smartscrew Models 224540C, 224570CBionx Implants, Ltd.1999—
−6K012001SmartscrewBionx Implants, Ltd.2001—
−5K030900Inion Otps Biodegradable Fixaton SystemInion, Ltd.2003—
−4K043248Tightrope Syndesmosis Repair Kit, Titanium, Model AR-8920DS; Stainless Steel.…Arthrex, Inc.2005—
−3K052776Tightrope Acromioclavicular (AC) Device, Titanium, Stainless Steel , Models…Arthrex, Inc.2005—
−2K061925Mini Tightrope Repair Kit, Model AR-8911DSArthrex, Inc.2006—
−1K082384Hav-Lok Bunion Correction SystemInstratek, Inc.2008—
0 (this device)K091763Michelangelo Bunion System - Mabs, Model: MA6000Instratek, Inc.2009—
+1K111032CMC Cable FixInstratek, Inc.2011—
+2K200332EXPERT - Joint Fixation SystemGM Dos Reis Industria e Comercio Ltda.2020—
+3K242311EXPERT - Flexible Joint Fixation SystemGM Dos Reis Industria e Comercio Ltda.2024—
+1K183094CyclaPlex Correction SystemCycla Orthopedics, Ltd.2019—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199020
199210
199310
199420
199530
199670
199740
199820
199930
200140
200210
200310
200430

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201110
201910
202010
202410
FIG. 1 — Lineage of K091763, 1979–2024Source: 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 HTN? 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 HTN device

  1. #1 K201522 Arthrex Syndesmosis TightRope XP Buttress…score 16.4 · 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? (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
*K082384Hav-Lok Bunion Correction System
Summary page 1
…n name: Button/Suture Device classification WasherBolt Nut, HTN at 21 CFR 888.3030 name: Legally marketed HAV-Lok Bunion Correction System, K082384 devices to which the Arthrex Mini-Tightrope, K061925 device is substantially equivalent:…
Instratek, Inc.2008—
*K061925Mini Tightrope Repair Kit, Model AR-8911DS
Summary page 1
…asherBolt Nut, HTN at 21 CFR 888.3030 name: Legally marketed HAV-Lok Bunion Correction System, K082384 devices to which the Arthrex Mini-Tightrope, K061925 device is substantially equivalent:…
Arthrex, Inc.2006—

What descends from it? (4)

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

NumberDeviceApplicantDecidedDescendants
K111032CMC Cable FixInstratek, Inc.20112
K183094CyclaPlex Correction SystemCycla Orthopedics, Ltd.20190

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 30 years and passes through 6 companies; a new generation was cleared every 1.7 years on median.
  • 2 of the 43 ancestors have a recall of any class.
  • Of its descendants, K111032 (Instratek, Inc., 2011) has gone furthest, with 2 descendants of its own.

How does its category compare?

All HTN devices

HTN Washer, Bolt Nut: FDA decisions, review times, recalls and adverse event reports over 20 years. 2009, this device’s year, is highlighted.

FDA decisions per year · HTN

4in 2025

2007: 12008: 22009: 32011: 42013: 32014: 82015: 22016: 12017: 62018: 22019: 52020: 32021: 22022: 52023: 22024: 62025: 42026 (partial year): 2
2007high 8 (2014) · low 0 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HTN

75in 2025

2009: 86 days median2011: 130 days median2013: 105 days median2014: 98 days median2017: 88 days median2019: 116 days median2020: 87 days median2022: 86 days median2024: 90 days median2025: 75 days median
2007high 130 (2011) · low 75 (2025)2026

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

Recalls per year · HTN

1in 2019

2013: 12019: 1
2007high 1 (2013) · low 0 (2007)2026

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

Adverse event reports per year · HTN

190in 2025

2007: 142008: 112009: 222010: 172011: 122012: 692013: 452014: 332015: 352016: 432017: 302018: 482019: 532020: 812021: 1492022: 852023: 1082024: 2692025: 190
2007high 269 (2024) · low 11 (2008)2025

MAUDE reports naming product code HTN, 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—014
20082—011
2009386022
20100—017
20114130012
20120—069
20133105145
2014898033
20152—035
20161—043
2017688030
20182—048
20195116153
2020387081
20212—0149
2022586085
20232—0108
20246900269
20254750190
20262—0—

What is it indicated for?

The Michelangelo Bunion System is intended for the following surgical indication:

To assist in the correction of hallux valgus deformities by providing reduction of the 1 st intermetatarsal angle.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K091763: Michelangelo Bunion System - Mabs, Model: MA6000.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K091763

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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