Cleared Traditional

THREADED TITANIUM METAL BACKED ACETABULAR CUP (K844906) - FDA 510(k) Clearance

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

K844906 · Depuy, Inc. · Orthopedic device
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Mar 1985
Decision
78d
Days
Class 2
Risk

K844906 is an FDA 510(k) clearance for the THREADED TITANIUM METAL BACKED ACETABULAR CUP. Classified as Prosthesis, Hip, Semi-constrained, Metal/ceramic/polymer, Cemented Or Non-porous, Uncemented (product code LZO), Class II - Special Controls.

Submitted by Depuy, Inc. (Warsaw, US). The FDA issued a Cleared decision on March 5, 1985 after a review of 78 days - a notably fast clearance cycle.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3353 - 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 Depuy, Inc. devices

Submission Details

510(k) Number K844906 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 17, 1984
Decision Date March 05, 1985
Days to Decision 78 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
44d faster than avg
Panel avg: 122d · This submission: 78d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code LZO Prosthesis, Hip, Semi-constrained, Metal/ceramic/polymer, Cemented Or Non-porous, Uncemented
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3353
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.