Cleared Traditional

ADSON-BECKMAN RETRACTOR, SPINAL (K905445) - FDA 510(k) Clearance

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

K905445 · A. Henniss · Neurology device
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Jan 1991
Decision
52d
Days
Class 2
Risk

K905445 is an FDA 510(k) clearance for the ADSON-BECKMAN RETRACTOR, SPINAL. Classified as Retractor, Self-retaining, For Neurosurgery (product code GZT), Class II - Special Controls.

Submitted by A. Henniss (Tarzana, US). The FDA issued a Cleared decision on January 25, 1991 after a review of 52 days - a notably fast clearance cycle.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.4800 - the FDA neurology 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 A. Henniss devices

Submission Details

510(k) Number K905445 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 04, 1990
Decision Date January 25, 1991
Days to Decision 52 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
96d faster than avg
Panel avg: 148d · This submission: 52d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code GZT Retractor, Self-retaining, For Neurosurgery
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.4800
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 Neurology devices follow this clearance model.

Regulatory Peers - GZT Retractor, Self-retaining, For Neurosurgery

All 7
Devices cleared under the same product code (GZT) and FDA review panel - the closest regulatory comparables to K905445.
Geister retractor for neuro - and spine surgery
K180610 · Geister Medizin Technik GmbH · Aug 2018
SCALP DURA RETRACTOR, MODEL KS00474
K093054 · KARL STORZ Endoscopy-America, Inc. · Nov 2010
CODMAN LHALO SPLIT RING RETRACTOR SYSTEM
K913233 · Codman & Shurtleff, Inc. · Jul 1991
V. MUELLER RHOTON SELF-RETAINING BRAIN RETRACTOR
K895395 · Baxter Healthcare Corp · Oct 1989