510(k) · Cleared
ClearedTorus External Fixation System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Zimmer, Inc. · KTW Appliance, Fixation, Nail/Blade/Plate Combination, Single Component
Cleared on Jun 1, 1993 after a 204-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 1 later device descends from it.
- Decided
- Jun 1, 1993
- Review
- 204 days
- Class
- Class II
- Product code
- KTW
- Recalls
- None
- Predicates
- 0
1 later device descends from it, 1 citing it directly.
- This deviceK925635 Torus External Fixation SystemZimmer, Inc. · 1993
- Descendant · cites it directly · 0 of its ownK140649 Vectrix External Fixator3D Medical Concepts, LLC · 2014
Most influential descendants
Showing 1 of 1 · See all- K140649Vectrix External Fixator3D Medical Concepts, LLC · 2014 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K925635 | Torus External Fixation System | Zimmer, Inc. | 1993 | — |
| +1 | K140649 | Vectrix External Fixator | 3D Medical Concepts, LLC | 2014 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2014 | 1 | 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 KTW? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
- Candidate predicates for a device like this, rankedin the report
- Recall history across each candidate’s familyin the report
What was it cleared against?
FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K140649 | Vectrix External Fixator | 2014 | 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, K140649 (3D Medical Concepts, LLC, 2014) has gone furthest, with 0 descendants of its own.
How does its category compare?
All KTW devicesKTW Appliance, Fixation, Nail/Blade/Plate Combination, Single Component: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · KTW
1in 2019
2026 to Oct 25, outlined.
Median 510(k) review, days · KTW
Too few KTW 510(k)s in any year since 2007 to give a median.
Recalls per year · KTW
57in 2010
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KTW
96in 2025
MAUDE reports naming product code KTW, 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 | 0 | — | 0 | 3 |
| 2008 | 2 | — | 0 | 10 |
| 2009 | 0 | — | 0 | 2 |
| 2010 | 0 | — | 57 | 26 |
| 2011 | 0 | — | 0 | 21 |
| 2012 | 1 | — | 0 | 70 |
| 2013 | 0 | — | 0 | 70 |
| 2014 | 0 | — | 0 | 62 |
| 2015 | 0 | — | 0 | 26 |
| 2016 | 1 | — | 0 | 41 |
| 2017 | 2 | — | 0 | 27 |
| 2018 | 0 | — | 0 | 24 |
| 2019 | 1 | — | 0 | 11 |
| 2020 | 0 | — | 0 | 60 |
| 2021 | 0 | — | 0 | 25 |
| 2022 | 0 | — | 0 | 50 |
| 2023 | 0 | — | 0 | 30 |
| 2024 | 0 | — | 0 | 123 |
| 2025 | 0 | — | 0 | 96 |
| 2026 | 0 | — | 0 | — |
https://510kreport.com/device/K925635 · printed Nov 4, 2026
Cite this page
510(k) Report. “K925635: Torus External Fixation System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K925635
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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