Cleared Traditional

K973634 - COULTER AC.T DIFF ANALYZER

K973634 is an FDA 510(k) clearance for COULTER AC.T DIFF ANALYZER, manufactured by Coulter Corp.. The device is a Class 2 Hematology device with product code GKZ cleared through the Traditional 510(k) pathway after a 35-day FDA review.

K973634 · Coulter Corp. · Hematology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Oct 1997
Decision
35d
Days
Class 2
Risk

K973634 is an FDA 510(k) clearance for the COULTER AC.T DIFF ANALYZER. Classified as Counter, Differential Cell (product code GKZ), Class II - Special Controls.

Submitted by Coulter Corp. (Miami, US). The FDA issued a Cleared decision on October 29, 1997 after a review of 35 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 Corp. devices

FDA 510(k) Submission Details - K973634

510(k) Number K973634 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 24, 1997
Decision Date October 29, 1997
Days to Decision 35 days
Submission Type Traditional
Review Panel Hematology (HE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
78d faster than avg
Panel avg: 113d · This submission: 35d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

GKZ Device Classification - Class 2, Special Controls

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 295
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