Cleared Traditional

K221805 - AccurSound Electronic Stethoscope AS-101 (FDA 510(k) Clearance)

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

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Mar 2023
Decision
274d
Days
Class 2
Risk

K221805 is an FDA 510(k) clearance for the AccurSound Electronic Stethoscope AS-101. Classified as Stethoscope, Electronic (product code DQD), Class II - Special Controls.

Submitted by Heroic Faith International , Ltd. (Taipei City, TW). The FDA issued a Cleared decision on March 23, 2023 after a review of 274 days - an extended review cycle.

This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.1875 - 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.

View all Heroic Faith International , Ltd. devices

Submission Details

510(k) Number K221805 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 22, 2022
Decision Date March 23, 2023
Days to Decision 274 days
Submission Type Traditional
Review Panel Cardiovascular (CV)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
149d slower than avg
Panel avg: 125d · This submission: 274d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

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 152
Devices cleared under the same product code (DQD) and FDA review panel - the closest regulatory comparables to K221805.
Tyto Stethoscope (G3)
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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
AccurSound Electronic Stethoscope (AS101)
K242971 · Heroic Faith International , Ltd. · Nov 2024