Cleared Traditional

HOWMEDICA THREADED ACETABULAR COMPONENT (K850840) - FDA 510(k) Clearance

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

K850840 · Pfizer, Inc. · Orthopedic device
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Jul 1985
Decision
136d
Days
Class 3
Risk

K850840 is an FDA 510(k) clearance for the HOWMEDICA THREADED ACETABULAR COMPONENT. Classified as Prosthesis, Hip, Semi-constrained (metal Uncemented Acetabular Component) (product code KWA), Class III - Premarket Approval.

Submitted by Pfizer, Inc. (Ny, US). The FDA issued a Cleared decision on July 15, 1985 after a review of 136 days - within the typical 510(k) review window.

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 Pfizer, Inc. devices

Submission Details

510(k) Number K850840 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 01, 1985
Decision Date July 15, 1985
Days to Decision 136 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
14d slower than avg
Panel avg: 122d · This submission: 136d
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.

Regulatory Peers - KWA Prosthesis, Hip, Semi-constrained (metal Uncemented Acetabular Component)

All 113
Devices cleared under the same product code (KWA) and FDA review panel - the closest regulatory comparables to K850840.
PROFEMUR Z REVISION HIP STEM
K122778 · Wrightmedicaltechnologyinc · Oct 2012
DYNASTY BIOFOAM SHELL
K121544 · Wrightmedicaltechnologyinc · Jul 2012
CONSERVE THIN SHELL
K113322 · Wrightmedicaltechnologyinc · Feb 2012
PRESERVE HIP STEM
K112080 · Wrightmedicaltechnologyinc · Dec 2011
PROFEMUR GLADIATOR HA HIP STEM
K112150 · Wrightmedicaltechnologyinc · Nov 2011
PROFEMUR XM WINGLESS DISTAL CENTRALIZER, PERFECTA DISTAL CENTRALIZER
K113019 · Wrightmedicaltechnologyinc · Nov 2011