Cleared Traditional

K183533 - Unity Total Knee System

K183533 is the FDA 510(k) clearance for Unity Total Knee System by Corin U.S.A. Limited. It is a Class 2 Orthopedic device (product code JWH) cleared through the Traditional 510(k) pathway after a 167-day FDA review.

K183533 · Corin U.S.A. Limited · Orthopedic device
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Jun 2019
Decision
167d
Days
Class 2
Risk

K183533 is an FDA 510(k) clearance for the Unity Total Knee System. Classified as Prosthesis, Knee, Patellofemorotibial, Semi-constrained, Cemented, Polymer/metal/polymer (product code JWH), Class II - Special Controls.

Submitted by Corin U.S.A. Limited (Tampa, US). The FDA issued a Cleared decision on June 4, 2019 after a review of 167 days - an extended review cycle.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3560 - 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Orthopedic review framework, consistent with the majority of Class II 510(k) submissions.

View all Corin U.S.A. Limited devices

Submission Details

510(k) Number K183533 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 19, 2018
Decision Date June 04, 2019
Days to Decision 167 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
45d slower than avg
Panel avg: 122d · This submission: 167d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JWH Prosthesis, Knee, Patellofemorotibial, Semi-constrained, Cemented, Polymer/metal/polymer
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3560
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 Peers - JWH Prosthesis, Knee, Patellofemorotibial, Semi-constrained, Cemented, Polymer/metal/polymer

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