Cleared Traditional

K904843 - OSCAR(TM) II CAPNOMETER & PULSE OXIMETER (FDA 510(k) Clearance)

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

K904843 · Dalton Instrument Corp. · Anesthesiology device
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Apr 1991
Decision
166d
Days
Class 2
Risk

K904843 is an FDA 510(k) clearance for the OSCAR(TM) II CAPNOMETER & PULSE OXIMETER. Classified as Analyzer, Gas, Nitrous-oxide, Gaseous Phase (anesthetic Conc.) (product code CBR), Class II - Special Controls.

Submitted by Dalton Instrument Corp. (Helsinki, Finland, FI). The FDA issued a Cleared decision on April 9, 1991 after a review of 166 days - an extended review cycle.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.1700 - 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Anesthesiology review framework, consistent with the majority of Class II 510(k) submissions.

View all Dalton Instrument Corp. devices

Submission Details

510(k) Number K904843 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 25, 1990
Decision Date April 09, 1991
Days to Decision 166 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
27d slower than avg
Panel avg: 139d · This submission: 166d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code CBR Analyzer, Gas, Nitrous-oxide, Gaseous Phase (anesthetic Conc.)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.1700
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.