Cleared Traditional

BIAS TOTAL HIP SYSTEM 300-MM FEMORAL STEM (K921639) - FDA 510(k) Clearance

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

K921639 · Zimmer, Inc. · Orthopedic device
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Jul 1992
Decision
87d
Days
Class 2
Risk

K921639 is an FDA 510(k) clearance for the BIAS TOTAL HIP SYSTEM 300-MM FEMORAL STEM. Classified as Prosthesis, Hip, Semi-constrained, Metal/polymer, Porous Uncemented (product code LPH), Class II - Special Controls.

Submitted by Zimmer, Inc. (Warsaw, US). The FDA issued a Cleared decision on July 2, 1992 after a review of 87 days - a notably fast clearance cycle.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3358 - 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, Inc. devices

Submission Details

510(k) Number K921639 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 06, 1992
Decision Date July 02, 1992
Days to Decision 87 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary Statement
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
35d faster than avg
Panel avg: 122d · This submission: 87d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code LPH Prosthesis, Hip, Semi-constrained, Metal/polymer, Porous Uncemented
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3358
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 - LPH Prosthesis, Hip, Semi-constrained, Metal/polymer, Porous Uncemented

All 324
Devices cleared under the same product code (LPH) and FDA review panel - the closest regulatory comparables to K921639.
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K862702 · Depuy, Inc. · Jul 1986
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K862326 · Johnson & Johnson Professionals, Inc. · Jul 1986
PRECISION HIP SYSTEM PROXIMAL FEMORAL SPACER #6259
K860442 · Howmedica Corp. · May 1986