510(k) · Cleared
ClearedCOSY Cervicothoracic Occipital Rod-Screw System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Signus Medizintechnik GmbH · NKG Posterior Cervical Screw System
Cleared on Nov 18, 2022 as substantially equivalent to K160697 (Exactech, Inc., 2016) after a 256-day review. Its family tree reaches back 4 generations to 1997.
- Decided
- Nov 18, 2022
- Review
- 256 days
- Class
- Class II
- Product code
- NKG
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 4 generations to K953076 (1997). 5 ancestors in all. No later device cites it as a predicate yet.
- Root · 4 generations backK953076 Townley Facet/Pedicular Screw Plating SystemSofamor Danek USA,Inc. · 1997
- 3 generations backK062254 Axis Fixation SystemMedtronic Sofamor Danek, Inc. · 2008
- 2 generations backK142838 Synapse Occipital-Cervical-Thoracic (OCT) SystemSynthes USA Products, LLC · 2015 · Recalled
- 1 generation backK160697 Gibralt® Spine System and Gibralt® Occipital Spine SystemExactech, Inc. · 2016
- This deviceK220658 COSY Cervicothoracic Occipital Rod-Screw SystemSignus Medizintechnik GmbH · 2022
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K953076 | Townley Facet/Pedicular Screw Plating System | Sofamor Danek USA,Inc. | 1997 | — |
| −3 | K062254 | Axis Fixation System | Medtronic Sofamor Danek, Inc. | 2008 | — |
| −2 | K142838 | Synapse Occipital-Cervical-Thoracic (OCT) System | Synthes USA Products, LLC | 2015 | 1 |
| −1 | K160697 | Gibralt® Spine System and Gibralt® Occipital Spine System | Exactech, Inc. | 2016 | — |
| 0 (this device) | K220658 | COSY Cervicothoracic Occipital Rod-Screw System | Signus Medizintechnik GmbH | 2022 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2002 | 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? (1)
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 |
|---|---|---|---|
| * | K160697 | Gibralt® Spine System and Gibralt® Occipital Spine System Our OCR of the scanned summary read K160197, FDA’s number for Haemonetics Cell Saver Elite Autotransfusion System (Haemonetics Corporation). Corrected to the number one digit away whose FDA name carries the summary’s words for the device, “Gibralt Spine System”. | 2016 |
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 25 years and passes through 5 companies; a new generation was cleared every 6.6 years on median.
- 1 of the 5 ancestors has a recall of any class.
- 3 other devices also cite its predicate K160697.
How does its category compare?
All NKG devicesNKG Posterior Cervical Screw System: FDA decisions, review times, recalls and adverse event reports over 20 years. 2022, 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?
The COSY Cervicothoracic Occipital Rod-Screw 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-C7), and the thoracic spine from T1-T3: traumatic spinal fractures and/or traumatic dislocations; instabilities or deformity; failed previous fusions (e.g., pseudoarthrosis); tumors involving the…
Read the full statement (173 words)
The COSY Cervicothoracic Occipital Rod-Screw 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-C7), and the thoracic spine from T1-T3: traumatic spinal fractures and/or traumatic dislocations; instabilities or deformity; failed previous fusions (e.g., pseudoarthrosis); tumors involving the cervical spine; 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.
The COSY cervicothoracic occipital rod-screw 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 advance stage tumors involving the cervical spine in whom life expectancy is of limited duration to permit achievement of fusion.
In order to achieve additional levels of fixation, the COSY Cervicothoracic Occipital Rod-Screw System may be connected to the components of the DIPLOMAT System or MONOPOLY System using the rod-to-rod connectors or transition rods.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K220658 · printed Nov 6, 2026
Cite this page
510(k) Report. “K220658: COSY Cervicothoracic Occipital Rod-Screw System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K220658
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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