Cleared Traditional

K033943 - ALPHA METASUL 28MM AND 32MM ACETABULAR INSERTS, STANDARD AND HOODED (FDA 510(k) Clearance)

Class III device cleared through the 510(k) pathway via substantial equivalence to a legally marketed predicate.

K033943 · Centerpulse Orthopedics, Inc. · Orthopedic device
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Oct 2004
Decision
304d
Days
Class 3
Risk

K033943 is an FDA 510(k) clearance for the ALPHA METASUL 28MM AND 32MM ACETABULAR INSERTS, STANDARD AND HOODED. Classified as Prosthesis, Hip, Semi-constrained (metal Uncemented Acetabular Component) (product code KWA), Class III - Premarket Approval.

Submitted by Centerpulse Orthopedics, Inc. (Austin, US). The FDA issued a Cleared decision on October 18, 2004 after a review of 304 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3330 - 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: High-complexity regulatory submission. High regulatory complexity profile. 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 Centerpulse Orthopedics, Inc. devices

Submission Details

510(k) Number K033943 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 19, 2003
Decision Date October 18, 2004
Days to Decision 304 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
182d slower than avg
Panel avg: 122d · This submission: 304d
Pathway characteristics
Predicate-based equivalence.

Device Classification

Product Code KWA Prosthesis, Hip, Semi-constrained (metal Uncemented Acetabular Component)
Device Class Class 3 - Premarket Approval
CFR Regulation 21 CFR 888.3330
What this classification means

Class III devices typically require Premarket Approval (PMA) with clinical evidence. Clearance through 510(k) for Class III devices is granted only when substantial equivalence to a valid predicate can be established.