Cleared Traditional

SDS-4I (K034005) - FDA 510(k) Clearance

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

Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Nov 2004
Decision
330d
Days
Class 2
Risk

K034005 is an FDA 510(k) clearance for the SDS-4I. Classified as Stimulator, Muscle, Powered (product code IPF), Class II - Special Controls.

Submitted by Skylark Device & Systems Co., Ltd. (Taipei, TW). The FDA issued a Cleared decision on November 18, 2004 after a review of 330 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: Standard predicate-based submission. Elevated predicate reliance profile. This clearance follows a standard predicate-based equivalence path within the Physical Medicine review framework, consistent with the majority of Class II 510(k) submissions.

View all Skylark Device & Systems Co., Ltd. devices

Submission Details

510(k) Number K034005 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 24, 2003
Decision Date November 18, 2004
Days to Decision 330 days
Submission Type Traditional
Review Panel Physical Medicine (PM)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
215d slower than avg
Panel avg: 115d · This submission: 330d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

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 546
Devices cleared under the same product code (IPF) and FDA review panel - the closest regulatory comparables to K034005.
High Tone Power therapy (HiToP) (Model: HiToP PNP)
K252816 · Mohammadali Nezakati · Jun 2026
StimelMD (SSMD) system
K260142 · Motion Informatics ltd. · May 2026
Compact II
K251083 · Enraf-Nonius, B.V. · Sep 2025
EVE Synergy (EVE-20M)
K241433 · Weero Co., Ltd. · Jun 2025
TrainFES Advance
K241488 · Trainfes · Feb 2025
Quantum Mitohormesis (QMT) (M2101)
K240348 · Quantumtx Pte. , Ltd. · Dec 2024