Cleared Traditional

K821344 - ENGSTROM METABOLIC COMPUTER (FDA 510(k) Clearance)

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

K821344 · Lkb Instruments, Inc. · Anesthesiology device
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May 1982
Decision
23d
Days
Class 2
Risk

K821344 is an FDA 510(k) clearance for the ENGSTROM METABOLIC COMPUTER. Classified as Computer, Oxygen-uptake (product code BZL), Class II - Special Controls.

Submitted by Lkb Instruments, Inc. (Mchenry, US). The FDA issued a Cleared decision on May 28, 1982 after a review of 23 days - a notably fast clearance cycle.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.1730 - 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.

View all Lkb Instruments, Inc. devices

Submission Details

510(k) Number K821344 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 05, 1982
Decision Date May 28, 1982
Days to Decision 23 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
116d faster than avg
Panel avg: 139d · This submission: 23d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code BZL Computer, Oxygen-uptake
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.1730
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.