Cleared Traditional

K921640 - KINEMAX PLUS ALL PLASTIC TIBIAL COMPONENT

K921640 is an FDA 510(k) clearance for KINEMAX PLUS ALL PLASTIC TIBIAL COMPONENT, manufactured by Howmedica Corp.. The device is a Class 2 Orthopedic device with product code JWH cleared through the Traditional 510(k) pathway after a 155-day FDA review.

K921640 · Howmedica Corp. · Orthopedic device
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Optimized for regulatory review, auditing and printing
Sep 1992
Decision
155d
Days
Class 2
Risk

K921640 is an FDA 510(k) clearance for the KINEMAX PLUS ALL PLASTIC TIBIAL COMPONENT. Classified as Prosthesis, Knee, Patellofemorotibial, Semi-constrained, Cemented, Polymer/metal/polymer (product code JWH), Class II - Special Controls.

Submitted by Howmedica Corp. (Rutherford, US). The FDA issued a Cleared decision on September 8, 1992 after a review of 155 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 Howmedica Corp. devices

FDA 510(k) Submission Details - K921640

510(k) Number K921640 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 06, 1992
Decision Date September 08, 1992
Days to Decision 155 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
33d slower than avg
Panel avg: 122d · This submission: 155d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

JWH Device Classification - Class 2, Special Controls

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

All 885
Devices cleared under the same product code (JWH) and FDA review panel - the closest regulatory comparables to K921640.
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