Cleared Traditional

K844943 - WEILL CEMENTLESS THREADED ACETABULAR CUP (FDA 510(k) Clearance)

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

K844943 · Advanced Biosearch Assn. · Orthopedic device
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Mar 1985
Decision
88d
Days
Class 3
Risk

K844943 is an FDA 510(k) clearance for the WEILL CEMENTLESS THREADED ACETABULAR CUP. Classified as Prosthesis, Hip, Semi-constrained (metal Uncemented Acetabular Component) (product code KWA), Class III - Premarket Approval.

Submitted by Advanced Biosearch Assn. (Danville, US). The FDA issued a Cleared decision on March 18, 1985 after a review of 88 days - a notably fast clearance cycle.

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 Advanced Biosearch Assn. devices

Submission Details

510(k) Number K844943 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 20, 1984
Decision Date March 18, 1985
Days to Decision 88 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
34d faster than avg
Panel avg: 122d · This submission: 88d
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.