Cleared Traditional

K851943 - COULTER VOLUME ADAPTER (FDA 510(k) Clearance)

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

K851943 · Coulter Electronics, Inc. · Hematology device
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Aug 1985
Decision
119d
Days
Class 2
Risk

K851943 is an FDA 510(k) clearance for the COULTER VOLUME ADAPTER. 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 August 30, 1985 after a review of 119 days - within the typical 510(k) review window.

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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Hematology review framework, consistent with the majority of Class II 510(k) submissions.

View all Coulter Electronics, Inc. devices

Submission Details

510(k) Number K851943 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 03, 1985
Decision Date August 30, 1985
Days to Decision 119 days
Submission Type Traditional
Review Panel Hematology (HE)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
6d slower than avg
Panel avg: 113d · This submission: 119d
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.