Cleared Traditional

HS-15M MICROWAVE SURGERY EQUIPMENT, MICROTAZE (K861904) - FDA 510(k) Clearance

Class II Gastroenterology & Urology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K861904 · Cooper Lasersonics, Inc. · Gastroenterology & Urology device
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Oct 1986
Decision
153d
Days
Class 2
Risk

K861904 is an FDA 510(k) clearance for the HS-15M MICROWAVE SURGERY EQUIPMENT, MICROTAZE. Classified as Unit, Electrosurgical, Endoscopic (with Or Without Accessories) (product code KNS), Class II - Special Controls.

Submitted by Cooper Lasersonics, Inc. (Santa Clara, US). The FDA issued a Cleared decision on October 16, 1986 after a review of 153 days - an extended review cycle.

This device falls under the Gastroenterology & Urology FDA review panel, regulated under 21 CFR 876.4300 - the FDA gastroenterology and urology 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 Gastroenterology & Urology review framework, consistent with the majority of Class II 510(k) submissions.

View all Cooper Lasersonics, Inc. devices

Submission Details

510(k) Number K861904 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 16, 1986
Decision Date October 16, 1986
Days to Decision 153 days
Submission Type Traditional
Review Panel Gastroenterology & Urology (GU)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
23d slower than avg
Panel avg: 130d · This submission: 153d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code KNS Unit, Electrosurgical, Endoscopic (with Or Without Accessories)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 876.4300
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 Gastroenterology & Urology devices follow this clearance model.

Regulatory Peers - KNS Unit, Electrosurgical, Endoscopic (with Or Without Accessories)

All 73
Devices cleared under the same product code (KNS) and FDA review panel - the closest regulatory comparables to K861904.
BIPROBE(TM)
K912601 · C.R. Bard, Inc. · Jun 1991
RESECTOSCOPE LOOPS
K903323 · Olympus Corp. · Oct 1990
MICROVASIVE GOLD PROBE
K885005 · Boston Scientific Corp · Feb 1989
HPU HEAT PROBE AUTOMATED ELECTROCAUTERY SYSTEM
K851096 · Olympus Corp. · May 1985
DAVOL PAPILLITOME
K845015 · C.R. Bard, Inc. · Jan 1985
PAPILLOTOMY KNIVES
K780774 · Olympus Corp. · Jul 1978