Cleared Traditional

K940840 - ACT CONTROL SET (FDA 510(k) Clearance)

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

K940840 · Sigma Diagnostics, Inc. · Hematology device
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Jul 1994
Decision
146d
Days
Class 2
Risk

K940840 is an FDA 510(k) clearance for the ACT CONTROL SET. Classified as System, Multipurpose For In Vitro Coagulation Studies (product code JPA), Class II - Special Controls.

Submitted by Sigma Diagnostics, Inc. (St. Louis, US). The FDA issued a Cleared decision on July 19, 1994 after a review of 146 days - within the typical 510(k) review window.

This device falls under the Hematology FDA review panel, regulated under 21 CFR 864.5425 - 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 Sigma Diagnostics, Inc. devices

Submission Details

510(k) Number K940840 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 23, 1994
Decision Date July 19, 1994
Days to Decision 146 days
Submission Type Traditional
Review Panel Hematology (HE)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
33d slower than avg
Panel avg: 113d · This submission: 146d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JPA System, Multipurpose For In Vitro Coagulation Studies
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 864.5425
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.

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