Cleared Traditional

K896667 - LORENZ STENT (FDA 510(k) Clearance)

Class II Ear, Nose, Throat device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K896667 · Walter Lorenz Surgical, Inc. · Ear, Nose, Throat device
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Feb 1990
Decision
87d
Days
Class 2
Risk

K896667 is an FDA 510(k) clearance for the LORENZ STENT. Classified as Prosthesis, Larynx (stents And Keels) (product code FWN), Class II - Special Controls.

Submitted by Walter Lorenz Surgical, Inc. (Jacksonville, US). The FDA issued a Cleared decision on February 22, 1990 after a review of 87 days - a notably fast clearance cycle.

This device falls under the Ear, Nose, Throat FDA review panel, regulated under 21 CFR 874.3620 - the FDA ear, nose and throat device 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 Walter Lorenz Surgical, Inc. devices

Submission Details

510(k) Number K896667 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 27, 1989
Decision Date February 22, 1990
Days to Decision 87 days
Submission Type Traditional
Review Panel Ear, Nose, Throat (EN)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
2d faster than avg
Panel avg: 89d · This submission: 87d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code FWN Prosthesis, Larynx (stents And Keels)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 874.3620
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 Ear, Nose, Throat devices follow this clearance model.