Cleared Traditional

CYBEX TORSO TESTING & REHABILITATION (K843739) - FDA 510(k) Clearance

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

K843739 · Cybex · Physical Medicine device
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Nov 1984
Decision
65d
Days
Class 2
Risk

K843739 is an FDA 510(k) clearance for the CYBEX TORSO TESTING & REHABILITATION. Classified as System, Isokinetic Testing And Evaluation (product code IKK), Class II - Special Controls.

Submitted by Cybex (Ronkonkoma, US). The FDA issued a Cleared decision on November 29, 1984 after a review of 65 days - a notably fast clearance cycle.

This device falls under the Physical Medicine FDA review panel, regulated under 21 CFR 890.1925 - 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: 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 Cybex devices

Submission Details

510(k) Number K843739 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 25, 1984
Decision Date November 29, 1984
Days to Decision 65 days
Submission Type Traditional
Review Panel Physical Medicine (PM)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
50d faster than avg
Panel avg: 115d · This submission: 65d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code IKK System, Isokinetic Testing And Evaluation
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 890.1925
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.