Cleared Traditional

WS FREQUENCY SPECTRUM EFFECT PHYSIATRICS APPARATUS (K954577) - FDA 510(k) Clearance

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

K954577 · C.A.I. Industries Corp. · Physical Medicine device
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May 1997
Decision
585d
Days
Class 2
Risk

K954577 is an FDA 510(k) clearance for the WS FREQUENCY SPECTRUM EFFECT PHYSIATRICS APPARATUS. Classified as Lamp, Infrared, Therapeutic Heating (product code ILY), Class II - Special Controls.

Submitted by C.A.I. Industries Corp. (Alhambra, US). The FDA issued a Cleared decision on May 9, 1997 after a review of 585 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Physical Medicine FDA review panel, regulated under 21 CFR 890.5500 - the FDA physical medicine 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 Physical Medicine submissions.

View all C.A.I. Industries Corp. devices

Submission Details

510(k) Number K954577 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 02, 1995
Decision Date May 09, 1997
Days to Decision 585 days
Submission Type Traditional
Review Panel Physical Medicine (PM)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
470d slower than avg
Panel avg: 115d · This submission: 585d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code ILY Lamp, Infrared, Therapeutic Heating
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 890.5500
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 Physical Medicine devices follow this clearance model.

Regulatory Peers - ILY Lamp, Infrared, Therapeutic Heating

All 228
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