Cleared Traditional

K850391 - PLASMA EXTRACTION SYSTEM

K850391 is the FDA 510(k) clearance for PLASMA EXTRACTION SYSTEM by Hans J. Brouwers & Assoc.. It is a Class 2 Hematology device (product code JPI) cleared through the Traditional 510(k) pathway after a 98-day FDA review.

K850391 · Hans J. Brouwers & Assoc. · Hematology device
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May 1985
Decision
98d
Days
Class 2
Risk

K850391 is an FDA 510(k) clearance for the PLASMA EXTRACTION SYSTEM. Classified as Device, Hematocrit Measuring (product code JPI), Class II - Special Controls.

Submitted by Hans J. Brouwers & Assoc. (Mount Prospect, US). The FDA issued a Cleared decision on May 10, 1985 after a review of 98 days - within the typical 510(k) review window.

This device falls under the Hematology FDA review panel, regulated under 21 CFR 864.6400 - 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 Hans J. Brouwers & Assoc. devices

Submission Details

510(k) Number K850391 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 01, 1985
Decision Date May 10, 1985
Days to Decision 98 days
Submission Type Traditional
Review Panel Hematology (HE)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
15d faster than avg
Panel avg: 113d · This submission: 98d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JPI Device, Hematocrit Measuring
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 864.6400
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 - JPI Device, Hematocrit Measuring

Devices cleared under the same product code (JPI) and FDA review panel - the closest regulatory comparables to K850391.
i-STAT CHEM8+ cartridge with the i-STAT 1 System
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i-STAT Hematocrit test with i-STAT Alinity System
K163342 · Abbott Laboratories · Aug 2017
MICROSPIN MINICENTRIFUGE ITEM NO. 65204/94
K852482 · Em Diagnostic Systems, Inc. · Jul 1985
MICROHEMATOCRIT READER
K830578 · Fisher Scientific Co., LLC · Mar 1983
MICRO-HEMATOCRIT CENTRIFUGE 335/336
K823558 · Fisher Scientific Co., LLC · Jan 1983