Cleared Traditional

K201435 - Molecular Flow Simulations (FDA 510(k) Clearance)

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

K201435 · Therataxis, LLC · Neurology device
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Dec 2021
Decision
550d
Days
Class 2
Risk

K201435 is an FDA 510(k) clearance for the Molecular Flow Simulations. Classified as Neurological Stereotaxic Instrument (product code HAW), Class II - Special Controls.

Submitted by Therataxis, LLC (Baltimore, US). The FDA issued a Cleared decision on December 3, 2021 after a review of 550 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.4560 - the FDA neurology 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: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind Neurology submissions.

View all Therataxis, LLC devices

Submission Details

510(k) Number K201435 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 01, 2020
Decision Date December 03, 2021
Days to Decision 550 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
402d slower than avg
Panel avg: 148d · This submission: 550d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code HAW Neurological Stereotaxic Instrument
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.4560
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 Neurology devices follow this clearance model.

Regulatory Consultant

Convergent Clinical,Inc.
Al Memmolo

The regulatory consultant manages the 510(k) submission process on behalf of the applicant - coordinating technical documentation, predicate strategy and FDA communications. Identifying the consultant behind a submission is a key signal for competitive regulatory intelligence.

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All 422
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