Cleared Special

MODIFICATION TO ZARGIS ACOUSTIC CARDIOSCAN (ZAC) (K042128) - FDA 510(k) Clearance

Class II Cardiovascular device cleared through the Special 510(k) pathway - typically does not require clinical trials.

Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Sep 2004
Decision
33d
Days
Class 2
Risk

K042128 is an FDA 510(k) clearance for the MODIFICATION TO ZARGIS ACOUSTIC CARDIOSCAN (ZAC). Classified as Stethoscope, Electronic (product code DQD), Class II - Special Controls.

Submitted by Zargis Medical Corp. (Princeton, US). The FDA issued a Cleared decision on September 8, 2004 after a review of 33 days - a notably fast clearance cycle.

This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.1875 - the FDA cardiovascular device oversight framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.

Device pattern: Iterative device modification. Low regulatory complexity profile. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.

View all Zargis Medical Corp. devices

Submission Details

510(k) Number K042128 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 06, 2004
Decision Date September 08, 2004
Days to Decision 33 days
Submission Type Special
Review Panel Cardiovascular (CV)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
92d faster than avg
Panel avg: 125d · This submission: 33d
Pathway characteristics
Modification to existing cleared device.

Device Classification

Product Code DQD Stethoscope, Electronic
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.1875
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.

Regulatory Peers - DQD Stethoscope, Electronic

All 153
Devices cleared under the same product code (DQD) and FDA review panel - the closest regulatory comparables to K042128.
AiSteth®
K252915 · Ai Health Highway India Pvt., Ltd. · May 2026
Tyto Stethoscope (G3)
K252089 · Tyto Care , Ltd. · Mar 2026
Kneevoice Cartilage Evaluation System (750-3600-001)
K252076 · Kneevoice, Inc. · Feb 2026
eMurmur Heart AI
K252284 · Csd Labs · Dec 2025
Stethophone Pro
K252595 · Sparrow Acoustics, Inc. · Sep 2025
Eko Foundation Analysis Software with Transformers (EFAST)
K251494 · Eko Health, Inc. · Aug 2025