Cleared Traditional

K840261 - CAL-CHEX, A HEMATOLOGY CALIBRATOR

K840261 is an FDA 510(k) clearance for CAL-CHEX, manufactured by Streck Laboratories, Inc.. The device is a Class 2 Hematology device with product code KRZ cleared through the Traditional 510(k) pathway after a 47-day FDA review.

K840261 · Streck Laboratories, Inc. · Hematology device
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Feb 1984
Decision
47d
Days
Class 2
Risk

K840261 is an FDA 510(k) clearance for the CAL-CHEX, A HEMATOLOGY CALIBRATOR. Classified as Calibrator For Hemoglobin And Hematocrit Measurement (product code KRZ), Class II - Special Controls.

Submitted by Streck Laboratories, Inc. (Mchenry, US). The FDA issued a Cleared decision on February 21, 1984 after a review of 47 days - a notably fast clearance cycle.

This device falls under the Hematology FDA review panel, regulated under 21 CFR 864.8165 - 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.

FDA 510(k) Submission Details - K840261

510(k) Number K840261 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received January 05, 1984
Decision Date February 21, 1984
Days to Decision 47 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
66d faster than avg
Panel avg: 113d · This submission: 47d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

KRZ Device Classification - Class 2, Special Controls

Product Code KRZ Calibrator For Hemoglobin And Hematocrit Measurement
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 864.8165
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 - KRZ Calibrator For Hemoglobin And Hematocrit Measurement

All 24
Devices cleared under the same product code (KRZ) and FDA review panel - the closest regulatory comparables to K840261.
LIQUI-HEME HEMOGLOBIN CALIBRATORS
K842668 · Biodiagnostic Intl · Mar 1985
QCA HEMOGLOBIN KIT
K843695 · Bd Becton Dickinson Vacutainer Systems Preanalytic · Dec 1984
DADE HEMATOLOGY CALIBRATOR PLUS
K840010 · American Dade · Apr 1984
CALIBRATION STANDARD-HEMOGLOBIN
K831814 · United Diagnostics, Inc. · Jul 1983
CALIBRATOR 282
K831872 · Bionostics, Inc. · Jul 1983
HEMACAL
K831306 · Hematology Marketing Assoc. · Jun 1983
K840261 · CAL-CHEX, A HEMATOLOGY CALIBRATOR
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