Cleared Traditional

K871837 - COULTER COUNTER MODEL S-PLUS STKR

K871837 is the FDA 510(k) clearance for COULTER COUNTER MODEL S-PLUS STKR by Coulter Electronics, Inc.. It is a Class 2 Hematology device (product code GKZ) cleared through the Traditional 510(k) pathway after a 51-day FDA review.

K871837 · Coulter Electronics, Inc. · Hematology device
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Jul 1987
Decision
51d
Days
Class 2
Risk

K871837 is an FDA 510(k) clearance for the COULTER COUNTER MODEL S-PLUS STKR. Classified as Counter, Differential Cell (product code GKZ), Class II - Special Controls.

Submitted by Coulter Electronics, Inc. (Hialeah, US). The FDA issued a Cleared decision on July 2, 1987 after a review of 51 days - a notably fast clearance cycle.

This device falls under the Hematology FDA review panel, regulated under 21 CFR 864.5220 - 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 K871837 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 12, 1987
Decision Date July 02, 1987
Days to Decision 51 days
Submission Type Traditional
Review Panel Hematology (HE)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
62d faster than avg
Panel avg: 113d · This submission: 51d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code GKZ Counter, Differential Cell
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 864.5220
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.

Regulatory Peers - GKZ Counter, Differential Cell

All 193
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