Cleared Traditional

K896435 - HP SONOS 500 AND SONOS 1000 ULTRA. IMAGING SYSTEM (FDA 510(k) Clearance)

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

K896435 · Hewlett-Packard Co. · Cardiovascular device
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Feb 1990
Decision
90d
Days
Class 2
Risk

K896435 is an FDA 510(k) clearance for the HP SONOS 500 AND SONOS 1000 ULTRA. IMAGING SYSTEM. Classified as Probe, Blood-flow, Extravascular (product code DPT), Class II - Special Controls.

Submitted by Hewlett-Packard Co. (Andover, US). The FDA issued a Cleared decision on February 7, 1990 after a review of 90 days - within the typical 510(k) review window.

This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.2120 - the FDA cardiovascular device 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Cardiovascular review framework, consistent with the majority of Class II 510(k) submissions.

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Submission Details

510(k) Number K896435 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 09, 1989
Decision Date February 07, 1990
Days to Decision 90 days
Submission Type Traditional
Review Panel Cardiovascular (CV)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
35d faster than avg
Panel avg: 125d · This submission: 90d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code DPT Probe, Blood-flow, Extravascular
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.2120
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 Cardiovascular devices follow this clearance model.