Cleared Traditional

K022934 - SILENTFLOW 2 EXHALATION SYSTEM, MODEL WM 23650

K022934 is an FDA 510(k) clearance for SILENTFLOW 2 EXHALATION SYSTEM, manufactured by Gottlieb Weinmann Geraete Fuer Medizin Und Arbeits. The device is a Class 2 Anesthesiology device with product code BZD cleared through the Traditional 510(k) pathway after a 71-day FDA review.

K022934 · Gottlieb Weinmann Geraete Fuer Medizin Und Arbeits · Anesthesiology device
Download Printable Device Report (PDF) Official FDA 510(k) Summary (PDF)
Optimized for regulatory review, auditing and printing
Nov 2002
Decision
71d
Days
Class 2
Risk

K022934 is an FDA 510(k) clearance for the SILENTFLOW 2 EXHALATION SYSTEM, MODEL WM 23650. Classified as Ventilator, Non-continuous (respirator) (product code BZD), Class II - Special Controls.

Submitted by Gottlieb Weinmann Geraete Fuer Medizin Und Arbeits (Hamburg, DE). The FDA issued a Cleared decision on November 14, 2002 after a review of 71 days - a notably fast clearance cycle.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.5905 - the FDA anesthesiology and respiratory 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.

FDA 510(k) Submission Details - K022934

510(k) Number K022934 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 04, 2002
Decision Date November 14, 2002
Days to Decision 71 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
69d faster than avg
Panel avg: 140d · This submission: 71d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

BZD Device Classification - Class 2, Special Controls

Product Code BZD Ventilator, Non-continuous (respirator)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.5905
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 Anesthesiology devices follow this clearance model.

Regulatory Peers - BZD Ventilator, Non-continuous (respirator)

All 462
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K022934 · SILENTFLOW 2 EXHALATION SYSTEM, MODEL WM 23650
Download PDF FDA Summary Gottlieb Weinmann Ger…