Cleared Traditional

K840515 - ACID FAST BACILLI STAIN CONTROL

K840515 is an FDA 510(k) clearance for ACID FAST BACILLI STAIN CONTROL, manufactured by Scientific Device Laboratory, Inc.. The device is a Class 1 Microbiology device with product code LJG cleared through the Traditional 510(k) pathway after a 32-day FDA review.

K840515 · Scientific Device Laboratory, Inc. · Microbiology device
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Mar 1984
Decision
32d
Days
Class 1
Risk

K840515 is an FDA 510(k) clearance for the ACID FAST BACILLI STAIN CONTROL. Classified as Quality Control Slides (product code LJG), Class I - General Controls.

Submitted by Scientific Device Laboratory, Inc. (Walker, US). The FDA issued a Cleared decision on March 9, 1984 after a review of 32 days - a notably fast clearance cycle.

This device falls under the Microbiology FDA review panel, regulated under 21 CFR 866.2660 - the FDA microbiology 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 Scientific Device Laboratory, Inc. devices

FDA 510(k) Submission Details - K840515

510(k) Number K840515 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 06, 1984
Decision Date March 09, 1984
Days to Decision 32 days
Submission Type Traditional
Review Panel Microbiology (MI)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
70d faster than avg
Panel avg: 102d · This submission: 32d
Pathway characteristics
Predicate-based equivalence.

LJG Device Classification - Class 1, General Controls

Product Code LJG Quality Control Slides
Device Class Class 1 - General Controls
CFR Regulation 21 CFR 866.2660
What this classification means

Class I devices are subject to general controls only and most are exempt from 510(k) premarket notification. They represent the lowest regulatory burden in the FDA device framework.

Regulatory Peers - LJG Quality Control Slides

All 17
Devices cleared under the same product code (LJG) and FDA review panel - the closest regulatory comparables to K840515.
ATS CRYPTOSPORIDIUM STAIN CONTROL SLIDES
K880962 · Alpha-Tec Systems, Inc. · Mar 1988
INTRACELLULAR AMYLOID HISTOLOGY CONTROL SLIDES
K881107 · Sigma Diagnostics, Inc. · Mar 1988
INTRACELLULAR/EXTRACELLULAR IRON HISTOLOGY CONTROL
K881111 · Sigma Diagnostics, Inc. · Mar 1988
METACHROMATIC GRANULE STAIN CONTROL
K840516 · Scientific Device Laboratory, Inc. · Mar 1984
PROTOZOA STAIN CONTROL
K840517 · Scientific Device Laboratory, Inc. · Mar 1984
ATS GRAM STAIN CONTROL SLIDE
K823704 · Alpha-Tec Systems, Inc. · Jan 1983