Cleared Traditional

K881431 - SIEMENS STEREODYNATOR 828

K881431 is an FDA 510(k) clearance for SIEMENS STEREODYNATOR 828, manufactured by Elmed, Inc.. The device is a Class 2 Physical Medicine device with product code IPF cleared through the Traditional 510(k) pathway after a 741-day FDA review.

K881431 · Elmed, Inc. · Physical Medicine device
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Apr 1990
Decision
741d
Days
Class 2
Risk

K881431 is an FDA 510(k) clearance for the SIEMENS STEREODYNATOR 828. Classified as Stimulator, Muscle, Powered (product code IPF), Class II - Special Controls.

Submitted by Elmed, Inc. (Addison, US). The FDA issued a Cleared decision on April 16, 1990 after a review of 741 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 Elmed, Inc. devices

FDA 510(k) Submission Details - K881431

510(k) Number K881431 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 05, 1988
Decision Date April 16, 1990
Days to Decision 741 days
Submission Type Traditional
Review Panel Physical Medicine (PM)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
626d slower than avg
Panel avg: 115d · This submission: 741d
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 165
Devices cleared under the same product code (IPF) and FDA review panel - the closest regulatory comparables to K881431.
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K895301 · Henley Intl. · Feb 1990