510(k) · Cleared
ClearedANAX™ OCT Spinal System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Cg Medtech Co., Ltd. · NKG Posterior Cervical Screw System
Cleared on Jun 25, 2025 as substantially equivalent to K150570 (U&I Corporation, 2015) and 3 other predicates after a 20-day review. Its family tree reaches back 13 generations to 2001.
- Decided
- Jun 25, 2025
- Review
- 20 days
- Class
- Class II
- Product code
- NKG
- Recalls
- None
- Predicates
- 4
Its longest line of descent runs back 13 generations to K003155 (2001). 88 ancestors in all, the oldest K841189 (1984). No later device cites it as a predicate yet.
- Root · 13 generations backK003155 Vertebral Body ReplacementOsteotech, Inc. · 2001
- 9 generations between
- 3 generations backK062427 Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2006
- 2 generations backK070742 Modification to Vertex Reconstruction SystemMedtronic Sofamor Danek · 2007
- 1 generation backK110522 Vertex Reconstruction System, Vertex Select Reconstruction SystemMedtronic Sofamor Danek USA, Inc. · 2011
- This deviceK251725 ANAX™ OCT Spinal SystemCg Medtech Co., Ltd. · 2025
Show all 13 generations
- Root · 13 generations backK003155 Vertebral Body ReplacementOsteotech, Inc. · 2001
- 12 generations backK012254 VBROsteotech, Inc. · 2001
- 11 generations backK021791 Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2002
- 10 generations backK023570 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2002
- 9 generations backK030601 Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2003
- 8 generations backK040536 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2004
- 7 generations backK041556 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2004
- 6 generations backK043561 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2004
- 5 generations backK060719 Modification to Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2006
- 4 generations backK061938 Verte-Stack Spinal SystemMedtronic Sofamor Danek, Inc. · 2006
- 3 generations backK062427 Verte-Stack Spinal SystemMedtronic Sofamor Danek · 2006
- 2 generations backK070742 Modification to Vertex Reconstruction SystemMedtronic Sofamor Danek · 2007
- 1 generation backK110522 Vertex Reconstruction System, Vertex Select Reconstruction SystemMedtronic Sofamor Danek USA, Inc. · 2011
- This deviceK251725 ANAX™ OCT Spinal SystemCg Medtech Co., Ltd. · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −13 | K003155 | Vertebral Body Replacement | Osteotech, Inc. | 2001 | — |
| −12 | K012254 | VBR | Osteotech, Inc. | 2001 | — |
| −11 | K021791 | Verte-Stack Spinal System | Medtronic Sofamor Danek | 2002 | — |
| −10 | K023570 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2002 | — |
| −9 | K030601 | Verte-Stack Spinal System | Medtronic Sofamor Danek | 2003 | — |
| −8 | K040536 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −7 | K041556 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −6 | K043561 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −5 | K060719 | Modification to Verte-Stack Spinal System | Medtronic Sofamor Danek | 2006 | — |
| −4 | K061938 | Verte-Stack Spinal System | Medtronic Sofamor Danek, Inc. | 2006 | — |
| −3 | K062427 | Verte-Stack Spinal System | Medtronic Sofamor Danek | 2006 | — |
| −2 | K070742 | Modification to Vertex Reconstruction System | Medtronic Sofamor Danek | 2007 | — |
| −1 | K110522 | Vertex Reconstruction System, Vertex Select Reconstruction System | Medtronic Sofamor Danek USA, Inc. | 2011 | — |
| 0 (this device) | K251725 | ANAX™ OCT Spinal System | Cg Medtech Co., Ltd. | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 8 | 0 |
| 2003 | 5 | 0 |
| 2004 | 17 | 0 |
| 2005 | 10 | 0 |
| 2006 | 4 | 0 |
| 2007 | 2 | 0 |
| 2008 | 4 | 0 |
| 2009 | 3 | 0 |
| 2013 | 1 | 0 |
| 2015 | 2 | 0 |
| 2018 | 1 | 0 |
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 NKG? 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 NKG device
- #1 K252327 CMORE® CT System; CMORE® CT System Navigated…score 19.6 · 22 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (4)
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K150570 | ANAX OCT Spinal SystemSummary page 5…m Common Name: Occipito-cervico-thoracic Spinal Fixation System Product Code: NKG, KWP Predicate Device: ANAX™ OCT Spinal System (K150570, K183383) (primary) VERTEX SELECT® Reconstruction System (K110522, K123656) Reference Devices:… | 2015 |
| * | K183383 | ANAX™ OCT Spinal SystemSummary page 5…Name: Occipito-cervico-thoracic Spinal Fixation System Product Code: NKG, KWP Predicate Device: ANAX™ OCT Spinal System (K150570, K183383) (primary) VERTEX SELECT® Reconstruction System (K110522, K123656) Reference Devices: ANAX™… | 2018 |
| * | K110522 | Vertex Reconstruction System, Vertex Select Reconstruction SystemSummary page 5…NKG, KWP Predicate Device: ANAX™ OCT Spinal System (K150570, K183383) (primary) VERTEX SELECT® Reconstruction System (K110522, K123656) Reference Devices: ANAX™ 5.5 Spinal System (K132101, K143417, K162189, K173524, K… | 2011 |
| * | K123656 | Vertex Reconstruction System, Vertex Select Reconstruction SystemSummary page 5…NKG, KWP Predicate Device: ANAX™ OCT Spinal System (K150570, K183383) (primary) VERTEX SELECT® Reconstruction System (K110522, K123656) Reference Devices: ANAX™ 5.5 Spinal System (K132101, K143417, K162189, K173524, K231737)… | 2013 |
| † | K132101 | Anax 5.5 Spinal System | 2013 |
| † | K143417 | ANAX 5.5 Spinal System | 2015 |
| † | K162189 | ANAX™ 5.5 Spinal System | 2016 |
| † | K173524 | ANAX 5.5™ Spinal System | 2017 |
| † | K231737 | ANAX™ 5.5 Spinal System | 2023 |
What descends from it?
No later submission names this one as a predicate yet.
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 24 years and passes through 5 companies; a new generation was cleared every 9 months on median.
- 6 of the 88 ancestors have a recall of any class.
- 1 other device also cites its predicate K150570.
How does its category compare?
All NKG devicesNKG Posterior Cervical Screw System: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · NKG
6in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NKG
58in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NKG
2in 2020
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · NKG
153in 2025
MAUDE reports naming product code NKG, 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 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 17 | 71 | 0 | 4 |
| 2016 | 16 | 87 | 0 | 73 |
| 2017 | 15 | 108 | 0 | 99 |
| 2018 | 12 | 61 | 1 | 127 |
| 2019 | 8 | 50 | 1 | 214 |
| 2020 | 14 | 59 | 2 | 236 |
| 2021 | 7 | 56 | 0 | 704 |
| 2022 | 7 | 108 | 0 | 175 |
| 2023 | 10 | 58 | 0 | 131 |
| 2024 | 3 | 100 | 0 | 206 |
| 2025 | 6 | 58 | 0 | 153 |
| 2026 | 4 | 169 | 0 | — |
What is it indicated for?
ANAX ™ OCT Spinal System is intended to provide immobilization and stabilization of spinal segments as an adjunct to fusion for the following acute and chronic instabilities of the craniocervical junction, the cervical spine (C1 to C?) and the thoracic spine from T1-T3: traumatic spinal fractures and/or traumatic dislocations; instability or deformity; failed previous fusions (e.g., pseudarthrosis); tumors involving the cervical spine; and degenerative…
Read the full statement (199 words)
ANAX ™ OCT Spinal System is intended to provide immobilization and stabilization of spinal segments as an adjunct to fusion for the following acute and chronic instabilities of the craniocervical junction, the cervical spine (C1 to C?) and the thoracic spine from T1-T3: traumatic spinal fractures and/or traumatic dislocations; instability or deformity; failed previous fusions (e.g., pseudarthrosis); tumors involving the cervical spine; and degenerative disease, including intractable radiculopathy and/or myelopathy, neck and/or arm pain of discogenic origin as confirmed by radiographic studies, and degenerative disease of the facets with instability. ANAX ™ OCT Spinal System is also intended to restore the integrity of the spinal column even in the absence of fusion for a limited time period in patients with advanced stage tumors involving the cervical spine in whom life expectancy is of insufficient duration to permit achievement of fusion.
In order to achieve additional levels of fixation, ANAX ™ OCT Spinal System may be connected to Perfix ™ Spinal System and ANAX ™ 5.5 Spinal System rods with the rod connectors. Transition rods with differing diameters may also be used to connect ANAX ™ OCT Spinal System to Perfix ™ Spinal System and ANAX ™ 5.5 Spinal System.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K251725 · printed Nov 6, 2026
Cite this page
510(k) Report. “K251725: ANAX™ OCT Spinal System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K251725
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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