510(k) · Cleared
ClearedRichards External Fixation System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Richards Medical Co., Inc. · KTT Appliance, Fixation, Nail/Blade/Plate Combination, Multiple Component
Cleared on Mar 19, 1987 after a 9-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 62 later devices descend from it.
- Decided
- Mar 19, 1987
- Review
- 9 days
- Class
- Class II
- Product code
- KTT
- Recalls
- None
- Predicates
- 0
62 later devices descend from it, 10 citing it directly.
- This deviceK870961 Richards External Fixation SystemRichards Medical Co., Inc. · 1987
- Descendant · cites it directly · 51 of its ownK093047 Smith & Nephew Circular Fixation SystemSmith & Nephew, Inc. · 2010 · Recalled
- Descendant · 2 generations on · 32 of its ownK141078 Orthofix TL-Hex True Lok Hexalobe System (TL-Hex)Orthofix Srl · 2014
- Descendant · 3 generations on · 26 of its ownK143125 Orthofix True Lok Hexapod System VI.3Orthofix Srl · 2014
- Descendant · 4 generations on · 19 of its ownK152171 Orthofix TL-HEX True Lok Hexapod System (TL-HEX) V1.4Orthofix Srl · 2015
- Descendant · 2 generations on · 18 of its ownK110069 Smith & Nephew, Inc Spatialframe V4.1 Web-Based SoftwareSmith & Nephew, Inc. · 2011
Showing 5 of 62 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 62 · See all- K093047Smith & Nephew Circular Fixation SystemSmith & Nephew, Inc. · 2010 · cites it directly51descendants
- K141078Orthofix TL-Hex True Lok Hexalobe System (TL-Hex)Orthofix Srl · 2014 · 2 generations on32descendants
- K143125Orthofix True Lok Hexapod System VI.3Orthofix Srl · 2014 · 3 generations on26descendants
- K152171Orthofix TL-HEX True Lok Hexapod System (TL-HEX) V1.4Orthofix Srl · 2015 · 4 generations on19descendants
- K110069Smith & Nephew, Inc Spatialframe V4.1 Web-Based SoftwareSmith & Nephew, Inc. · 2011 · 2 generations on18descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K870961 | Richards External Fixation System | Richards Medical Co., Inc. | 1987 | — |
| +1 | K093047 | Smith & Nephew Circular Fixation System | Smith & Nephew, Inc. | 2010 | 1 |
| +2 | K141078 | Orthofix TL-Hex True Lok Hexalobe System (TL-Hex) | Orthofix Srl | 2014 | — |
| +3 | K143125 | Orthofix True Lok Hexapod System VI.3 | Orthofix Srl | 2014 | — |
| +4 | K152171 | Orthofix TL-HEX True Lok Hexapod System (TL-HEX) V1.4 | Orthofix Srl | 2015 | — |
| +2 | K110069 | Smith & Nephew, Inc Spatialframe V4.1 Web-Based Software | Smith & Nephew, Inc. | 2011 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1997 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 2 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 4 | 0 |
| 2015 | 1 | 0 |
| 2016 | 2 | 0 |
| 2017 | 2 | 0 |
| 2018 | 4 | 0 |
| 2019 | 3 | 0 |
| 2020 | 6 | 0 |
| 2021 | 6 | 0 |
| 2022 | 2 | 0 |
| 2023 | 3 | 0 |
| 2024 | 3 | 0 |
| 2025 | 9 | 0 |
| 2026 | 6 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in KTT? 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 KTT device
- #1 K242861 TrueLok Elevatescore 21.3 · 14 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (62)
See all 6210 later devices cite it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K093047 | Smith & Nephew Circular Fixation System | 2010 | 51 |
| K970751 | Heidelberg External Fixator | 1997 | 11 |
| K042436 | Iiizarov Pulley System | 2004 | 8 |
| K151881 | X-Fix Line Additions | 2016 | 7 |
| K130479 | Ilizarov Drill Tip Wires | 2013 | 6 |
| K120871 | Smith & Nephew, Inc. External Fixation System Instrumentation | 2012 | 6 |
| K190069 | SixFix™ Hexapod Fixator and Deformity Analysis and Correction Software (DACS) | 2019 | 3 |
| K012634 | Reprocessed External Fixation Device | 2002 | 1 |
| K093753 | Mdpo Frame System | 2010 | 0 |
| K032169 | Carbon Fiber Composite Circular Fixation (Cirfix) Device (Half Ring) | 2003 | 0 |
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, K093047 (Smith & Nephew, Inc., 2010) has gone furthest, with 51 descendants of its own.
How does its category compare?
All KTT devicesKTT Appliance, Fixation, Nail/Blade/Plate Combination, Multiple Component: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · KTT
10in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · KTT
88in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · KTT
2in 2021
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KTT
673in 2025
MAUDE reports naming product code KTT, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 9 | 55 | 2 | 45 |
| 2008 | 11 | 73 | 1 | 66 |
| 2009 | 11 | 94 | 2 | 45 |
| 2010 | 12 | 148 | 1 | 121 |
| 2011 | 10 | 157 | 0 | 196 |
| 2012 | 9 | 140 | 4 | 527 |
| 2013 | 7 | 87 | 7 | 898 |
| 2014 | 14 | 129 | 0 | 445 |
| 2015 | 12 | 60 | 0 | 401 |
| 2016 | 10 | 142 | 0 | 400 |
| 2017 | 11 | 184 | 1 | 485 |
| 2018 | 6 | 149 | 14 | 597 |
| 2019 | 8 | 110 | 3 | 800 |
| 2020 | 9 | 200 | 0 | 942 |
| 2021 | 10 | 83 | 2 | 961 |
| 2022 | 3 | 25 | 0 | 627 |
| 2023 | 7 | 29 | 0 | 554 |
| 2024 | 5 | 90 | 0 | 523 |
| 2025 | 10 | 88 | 0 | 673 |
| 2026 | 5 | 68 | 11 | — |
https://510kreport.com/device/K870961 · printed Nov 6, 2026
Cite this page
510(k) Report. “K870961: Richards External Fixation System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K870961
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026