Cleared Traditional

TSO3 OZONE STERILIZER, MODEL 125L (K051595) - FDA 510(k) Clearance

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

K051595 · Tso3, Inc. · General Hospital
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Jul 2006
Decision
405d
Days
Class 2
Risk

K051595 is an FDA 510(k) clearance for the TSO3 OZONE STERILIZER, MODEL 125L. Classified as Sterilizer, Ethylene-oxide Gas (product code FLF), Class II - Special Controls.

Submitted by Tso3, Inc. (Fairport, US). The FDA issued a Cleared decision on July 26, 2006 after a review of 405 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the General Hospital FDA review panel, regulated under 21 CFR 880.6860 - the FDA general hospital 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: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind General Hospital submissions.

View all Tso3, Inc. devices

Submission Details

510(k) Number K051595 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 16, 2005
Decision Date July 26, 2006
Days to Decision 405 days
Submission Type Traditional
Review Panel General Hospital (HO)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
276d slower than avg
Panel avg: 129d · This submission: 405d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code FLF Sterilizer, Ethylene-oxide Gas
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 880.6860
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 General Hospital devices follow this clearance model.