Cleared Traditional

K203319 - SYMPHONY™ OCT System (FDA 510(k) Clearance)

Class II Orthopedic device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K203319 · Medos International SARL · Orthopedic device
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Feb 2021
Decision
85d
Days
Class 2
Risk

K203319 is an FDA 510(k) clearance for the SYMPHONY™ OCT System. Classified as Posterior Cervical Screw System (product code NKG), Class II - Special Controls.

Submitted by Medos International SARL (Le Locle, CH). The FDA issued a Cleared decision on February 5, 2021 after a review of 85 days - a notably fast clearance cycle.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3075 - the FDA orthopedic device regulatory framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Medos International SARL devices

Submission Details

510(k) Number K203319 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 12, 2020
Decision Date February 05, 2021
Days to Decision 85 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
37d faster than avg
Panel avg: 122d · This submission: 85d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code NKG Posterior Cervical Screw System
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3075
Definition Posterior Cervical Screw Systems Are Intended For Use In Fusion Procedures Of The Cervical Spine And/or Craniocervical Junction And/or Cervicothoracic Junction For: 1) Spinal Fractures And Dislocations; 2) Deformities; 3) Instabilities; 4) Failed Previous Fusions; 5) Tumors; 6) Inflammatory Disorders; 7) Spinal Degeneration, 8) Facet Degeneration With Instability; And 9) Reconstruction Following Decompression To Treat Radiculopathy And/or Myelopathy. These Systems Are Also Intended To Stabilize The Spine In The Absence Of Fusion For A Limited Time Period In Patients With Tumors Involving The Cervical Spine In Whom Life Expectancy Is Of Insufficient Duration To Permit Achievement Of Fusion.
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Orthopedic devices follow this clearance model.

Regulatory Consultant

Depuy Synthes Spine
Eric Zhu

The regulatory consultant manages the 510(k) submission process on behalf of the applicant - coordinating technical documentation, predicate strategy and FDA communications. Identifying the consultant behind a submission is a key signal for competitive regulatory intelligence.

Regulatory Peers - NKG Posterior Cervical Screw System

All 116
Devices cleared under the same product code (NKG) and FDA review panel - the closest regulatory comparables to K203319.
CarboClear® Posterior Cervical Screw System
K254045 · CarboFix Orthopedics , Ltd. · Mar 2026
Infinity™ OCT System
K254165 · Medtronic Sofamor Danek USA, Inc. · Jan 2026
CMORE® CT System
K252327 · Icotec AG · Nov 2025
Infinity™ OCT System
K253129 · Medtronic Sofamor Danek USA, Inc. · Oct 2025
ANAX™ OCT Spinal System
K251725 · Cg Medtech Co., Ltd. · Jun 2025
Sovereign Posterior Cervical System
K250866 · Met One Technologies, LLC · May 2025