Cleared Traditional

BIOSTOP G BONE CEMENT RESTRICTOR (K943727) - FDA 510(k) Clearance

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

K943727 · Landos, Inc. · Orthopedic device
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Optimized for regulatory review, auditing and printing
May 1995
Decision
282d
Days
Class 2
Risk

K943727 is an FDA 510(k) clearance for the BIOSTOP G BONE CEMENT RESTRICTOR. Classified as Cement Obturator (product code LZN), Class II - Special Controls.

Submitted by Landos, Inc. (Malvern, US). The FDA issued a Cleared decision on May 11, 1995 after a review of 282 days - an extended review cycle.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 878.3300 - 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: Standard predicate-based submission. Standard predicate reliance. 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 Landos, Inc. devices

Submission Details

510(k) Number K943727 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 02, 1994
Decision Date May 11, 1995
Days to Decision 282 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
160d slower than avg
Panel avg: 122d · This submission: 282d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code LZN Cement Obturator
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 878.3300
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 - LZN Cement Obturator

All 12
Devices cleared under the same product code (LZN) and FDA review panel - the closest regulatory comparables to K943727.
EXETER INTRAMEDULLARY BONE PLUG
K933077 · Howmedica Corp. · May 1995
HOWMEDICE BONE PLUG
K951860 · Howmedica Corp. · May 1995
PFC CEMENT RESTRICTOR
K951934 · Johnson & Johnson Professionals, Inc. · May 1995
P.F.C. CEMENT RESTRICTOR
K942060 · Johnson & Johnson Professionals, Inc. · Sep 1994
HIP FRACTURE STEM SYSTEM - FENESTRATION PLUG
K890326 · Howmedica Corp. · Feb 1989
HOWMEDICA HIP SYS DISTAL CENTRALIZING SPACER
K852449 · Howmedica Corp. · Aug 1985