Cleared Traditional

K833991 - BIPOLAR HIP DEVICE

K833991 is the FDA 510(k) clearance for BIPOLAR HIP DEVICE by Zimmer. It is a Class 2 Orthopedic device (product code KWY) cleared through the Traditional 510(k) pathway after a 70-day FDA review.

K833991 · Zimmer · Orthopedic device
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Jan 1984
Decision
70d
Days
Class 2
Risk

K833991 is an FDA 510(k) clearance for the BIPOLAR HIP DEVICE. Classified as Prosthesis, Hip, Hemi-, Femoral, Metal/polymer, Cemented Or Uncemented (product code KWY), Class II - Special Controls.

Submitted by Zimmer (Warsaw, US). The FDA issued a Cleared decision on January 30, 1984 after a review of 70 days - a notably fast clearance cycle.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3390 - 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 Zimmer devices

Submission Details

510(k) Number K833991 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 21, 1983
Decision Date January 30, 1984
Days to Decision 70 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
52d faster than avg
Panel avg: 122d · This submission: 70d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code KWY Prosthesis, Hip, Hemi-, Femoral, Metal/polymer, Cemented Or Uncemented
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3390
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 - KWY Prosthesis, Hip, Hemi-, Femoral, Metal/polymer, Cemented Or Uncemented

All 74
Devices cleared under the same product code (KWY) and FDA review panel - the closest regulatory comparables to K833991.
HOWMEDICA BIPOLAR PROSTHESIS
K855231 · Howmedica Corp. · Feb 1986
KIRSCHNER BIPOLAR ENDOPROSTHETIC HEAD
K853795 · Kirschner Medical Corp. · Nov 1985
HASTINGS BIPOLAR ENDOPROSTHESIS
K842344 · Johnson & Johnson Professionals, Inc. · Sep 1984
BIOMET BIPOLAR PROSTHESIS
K833175 · Biomet, Inc. · Dec 1983
SPECTRON CONVERSION ENDOPROSTHESIS CUP
K823726 · Richard'S Medical Equip., Inc. · Mar 1983
101 UNIVERSAL ENDOPROSTHESIS
K823482 · Intermedics Orthopedics · Feb 1983