Cleared Traditional

K904509 - POWER TRAINER WITH NEUROMUSCULAR STIMULATION

K904509 is an FDA 510(k) clearance for POWER TRAINER WITH NEUROMUSCULAR STIMUL..., manufactured by Sinties Scientific, Inc.. The device is a Class 2 Physical Medicine device with product code IPF cleared through the Traditional 510(k) pathway after a 498-day FDA review.

K904509 · Sinties Scientific, Inc. · Physical Medicine device
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Feb 1992
Decision
498d
Days
Class 2
Risk

K904509 is an FDA 510(k) clearance for the POWER TRAINER WITH NEUROMUSCULAR STIMULATION. Classified as Stimulator, Muscle, Powered (product code IPF), Class II - Special Controls.

Submitted by Sinties Scientific, Inc. (Tulsa, US). The FDA issued a Cleared decision on February 12, 1992 after a review of 498 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Physical Medicine FDA review panel, regulated under 21 CFR 890.5850 - 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 Sinties Scientific, Inc. devices

FDA 510(k) Submission Details - K904509

510(k) Number K904509 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 02, 1990
Decision Date February 12, 1992
Days to Decision 498 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
383d slower than avg
Panel avg: 115d · This submission: 498d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

IPF Device Classification - Class 2, Special Controls

Product Code IPF Stimulator, Muscle, Powered
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 890.5850
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 - IPF Stimulator, Muscle, Powered

All 273
Devices cleared under the same product code (IPF) and FDA review panel - the closest regulatory comparables to K904509.
IF-II (TM), MODEL 7200
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EMS300, EMS400, EMS8000
K912642 · Skylark Device Co., Ltd. · Dec 1991
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K902599 · Chattanooga Group, Inc. · Oct 1990