Cleared Traditional

MSI MODEL S-500 RF GENERATOR (K033888) - FDA 510(k) Clearance

Class II General & Plastic Surgery device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K033888 · Medsphere International, Inc. · General & Plastic Surgery device
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Apr 2004
Decision
108d
Days
Class 2
Risk

K033888 is an FDA 510(k) clearance for the MSI MODEL S-500 RF GENERATOR. Classified as Electrosurgical, Cutting & Coagulation & Accessories within the GEI classification (a category for electrosurgical cutting and coagulation devices), Class II - Special Controls.

Submitted by Medsphere International, Inc. (Fremont, US). The FDA issued a Cleared decision on April 2, 2004 after a review of 108 days - within the typical 510(k) review window.

This device falls under the General & Plastic Surgery FDA review panel, regulated under 21 CFR 878.4400 - the FDA general and plastic surgery 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. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the General & Plastic Surgery review framework, consistent with the majority of Class II 510(k) submissions.

View all Medsphere International, Inc. devices

Submission Details

510(k) Number K033888 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 16, 2003
Decision Date April 02, 2004
Days to Decision 108 days
Submission Type Traditional
Review Panel General & Plastic Surgery (SU)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
7d faster than avg
Panel avg: 115d · This submission: 108d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code GEI Electrosurgical, Cutting & Coagulation & Accessories
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 878.4400
Definition Validated Reprocessing Instructions And Reprocessing Validation Data For This Device Type Must Be Included In A 510(k) Submission If The Device Is Reusable And Has Specific Design Features (please Refer To Table 2 Of 82 Fr 26807, Available At Https://www.gpo.gov/fdsys/pkg/fr-2017-06-09/pdf/2017-12007.pdf).
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 General & Plastic Surgery devices follow this clearance model.

Regulatory Peers - GEI Electrosurgical, Cutting & Coagulation & Accessories

All 570
Devices cleared under the same product code (GEI) and FDA review panel - the closest regulatory comparables to K033888.
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SMITH & NEPHEW ELECTROTHERMAL 20S SPINE GENERATOR, MODEL 7209975
K033981 · Smith & Nephew, Inc. · Feb 2004
COBRA SURGICAL PROBE
K040219 · Boston Scientific Corp · Feb 2004
COBRA ADHERE SURGICAL SYSTEM, MODEL M00415977C0
K040104 · Boston Scientific Corp · Feb 2004