Cleared Traditional

ACUSON Sequoia Diagnostic Ultrasound System (K211859) - FDA 510(k) Clearance

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

K211859 · Siemens Medical Solutions USA, Inc. · Radiology device
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Jul 2021
Decision
34d
Days
Class 2
Risk

K211859 is an FDA 510(k) clearance for the ACUSON Sequoia Diagnostic Ultrasound System. Classified as System, Imaging, Pulsed Doppler, Ultrasonic within the IYN classification (a category covering pulsed Doppler and ultrasound imaging systems), Class II - Special Controls.

Submitted by Siemens Medical Solutions USA, Inc. (Issaquah, US). The FDA issued a Cleared decision on July 20, 2021 after a review of 34 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1550 - the FDA radiology and imaging software oversight 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 Siemens Medical Solutions USA, Inc. devices

Submission Details

510(k) Number K211859 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 16, 2021
Decision Date July 20, 2021
Days to Decision 34 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review Yes - reviewed by an FDA-accredited third party
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
73d faster than avg
Panel avg: 107d · This submission: 34d
Pathway characteristics
Predicate-based equivalence. No clinical trials required. Third-party reviewed.

Device Classification

Product Code IYN System, Imaging, Pulsed Doppler, Ultrasonic
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1550
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 Radiology devices follow this clearance model.

Regulatory Consultant

Regulatory Technology Services, LLC
Prithul Bom

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.

Regulatory Peers - IYN System, Imaging, Pulsed Doppler, Ultrasonic

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