Cleared Traditional

K854114 - COULTER COUNTER MODEL T-660 (FDA 510(k) Clearance)

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

K854114 · Coulter Electronics, Inc. · Hematology device
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Nov 1985
Decision
28d
Days
Class 2
Risk

K854114 is an FDA 510(k) clearance for the COULTER COUNTER MODEL T-660. Classified as Counter, Cell, Automated (particle Counter) (product code GKL), Class II - Special Controls.

Submitted by Coulter Electronics, Inc. (Hialeah, US). The FDA issued a Cleared decision on November 5, 1985 after a review of 28 days - a notably fast clearance cycle.

This device falls under the Hematology FDA review panel, regulated under 21 CFR 864.5200 - the FDA hematology 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: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Coulter Electronics, Inc. devices

Submission Details

510(k) Number K854114 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 08, 1985
Decision Date November 05, 1985
Days to Decision 28 days
Submission Type Traditional
Review Panel Hematology (HE)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
85d faster than avg
Panel avg: 113d · This submission: 28d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code GKL Counter, Cell, Automated (particle Counter)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 864.5200
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 Hematology devices follow this clearance model.