Cleared Traditional

K953055 - MISTASSIST BREATHING EXERCISER (FDA 510(k) Clearance)

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

K953055 · The Merlin Corp. · Anesthesiology device
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Feb 1996
Decision
223d
Days
Class 2
Risk

K953055 is an FDA 510(k) clearance for the MISTASSIST BREATHING EXERCISER. Classified as Spirometer, Therapeutic (incentive) (product code BWF), Class II - Special Controls.

Submitted by The Merlin Corp. (Camarillo, US). The FDA issued a Cleared decision on February 8, 1996 after a review of 223 days - an extended review cycle.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.5690 - 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 The Merlin Corp. devices

Submission Details

510(k) Number K953055 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 30, 1995
Decision Date February 08, 1996
Days to Decision 223 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
84d slower than avg
Panel avg: 139d · This submission: 223d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code BWF Spirometer, Therapeutic (incentive)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.5690
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 - BWF Spirometer, Therapeutic (incentive)

All 107
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