Cleared Traditional

K943146 - PORTA-RESP MONITOR

K943146 is the FDA 510(k) clearance for PORTA-RESP MONITOR by S & M Instrument Co.. It is a Class 2 Anesthesiology device (product code CAP) cleared through the Traditional 510(k) pathway after a 151-day FDA review.

K943146 · S & M Instrument Co. · Anesthesiology device
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Nov 1994
Decision
151d
Days
Class 2
Risk

K943146 is an FDA 510(k) clearance for the PORTA-RESP MONITOR. Classified as Monitor, Airway Pressure (includes Gauge And/or Alarm) (product code CAP), Class II - Special Controls.

Submitted by S & M Instrument Co. (Doylestown, US). The FDA issued a Cleared decision on November 28, 1994 after a review of 151 days - an extended review cycle.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.2600 - 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 S & M Instrument Co. devices

Submission Details

510(k) Number K943146 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 30, 1994
Decision Date November 28, 1994
Days to Decision 151 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
11d slower than avg
Panel avg: 140d · This submission: 151d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code CAP Monitor, Airway Pressure (includes Gauge And/or Alarm)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.2600
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 - CAP Monitor, Airway Pressure (includes Gauge And/or Alarm)

All 14
Devices cleared under the same product code (CAP) and FDA review panel - the closest regulatory comparables to K943146.
NS 120P-TRS Airway Pressure Gauge
K180510 · Instrumentation Industries, Inc. · May 2019
NAPA LP-15 Airway Pressure Monitor
K172284 · Drw Medical, LLC · Feb 2018
DISPOSABLE PRESSURE MANOMETER
K022402 · Vital Signs, Inc. · Aug 2002
RESPIRONICS' DIGITAL MANOMETER
K904935 · Respironics, Inc. · Apr 1991
RESPIRONICS BIPAP PRESSURE ALARM (BIPAP P.A.)
K902276 · Respironics, Inc. · Aug 1990
OHMEDA 5500 AIRWAY PRESSURE MONITOR
K864536 · Ohmeda Medical · Jan 1987