Cleared Traditional

NEO TSH-RIA KIT (K771378) - FDA 510(k) Clearance

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

K771378 · Nuclear Medical Systems, Inc. · Chemistry device
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Oct 1977
Decision
90d
Days
Class 2
Risk

K771378 is an FDA 510(k) clearance for the NEO TSH-RIA KIT. Classified as Radioimmunoassay, Thyroid-stimulating Hormone (product code JLW), Class II - Special Controls.

Submitted by Nuclear Medical Systems, Inc. (Mchenry, US). The FDA issued a Cleared decision on October 18, 1977 after a review of 90 days - within the typical 510(k) review window.

This device falls under the Chemistry FDA review panel, regulated under 21 CFR 862.1690 - the FDA in vitro diagnostics and chemistry 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 Chemistry review framework, consistent with the majority of Class II 510(k) submissions.

View all Nuclear Medical Systems, Inc. devices

Submission Details

510(k) Number K771378 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received July 20, 1977
Decision Date October 18, 1977
Days to Decision 90 days
Submission Type Traditional
Review Panel Chemistry (CH)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
2d slower than avg
Panel avg: 88d · This submission: 90d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JLW Radioimmunoassay, Thyroid-stimulating Hormone
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 862.1690
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 Chemistry devices follow this clearance model.

Regulatory Peers - JLW Radioimmunoassay, Thyroid-stimulating Hormone

All 241
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