Cleared Traditional

K770869 - ATYPICAL LYMPHOCYTE & NCB CLASSIFICATION

K770869 is an FDA 510(k) clearance for ATYPICAL LYMPHOCYTE & NCB CLASSIFICATION, manufactured by Geometric Data, Div. Smithkline Corp.. The device is a Class 2 Hematology device with product code GKZ cleared through the Traditional 510(k) pathway after a 20-day FDA review.

K770869 · Geometric Data, Div. Smithkline Corp. · Hematology device
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Jun 1977
Decision
20d
Days
Class 2
Risk

K770869 is an FDA 510(k) clearance for the ATYPICAL LYMPHOCYTE & NCB CLASSIFICATION. Classified as Counter, Differential Cell (product code GKZ), Class II - Special Controls.

Submitted by Geometric Data, Div. Smithkline Corp. (Mchenry, US). The FDA issued a Cleared decision on June 2, 1977 after a review of 20 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 Geometric Data, Div. Smithkline Corp. devices

FDA 510(k) Submission Details - K770869

510(k) Number K770869 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 13, 1977
Decision Date June 02, 1977
Days to Decision 20 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
93d faster than avg
Panel avg: 113d · This submission: 20d
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 305
Devices cleared under the same product code (GKZ) and FDA review panel - the closest regulatory comparables to K770869.
HEMATRAK
K770680 · Geometric Data, Div. Smithkline Corp. · Jul 1977
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K770550 · Geometric Data, Div. Smithkline Corp. · Jun 1977
HEMATRAK MODEL 125
K770701 · Geometric Data, Div. Smithkline Corp. · Jun 1977
HEMATRAK MATURITY PROFILE OPTION
K761208 · Geometric Data, Div. Smithkline Corp. · Feb 1977