510(k) · Cleared
ClearedAccurSound Electronic Stethoscope (AS101)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Heroic Faith International, Ltd. · DQD Stethoscope, Electronic
Cleared on Nov 25, 2024 as substantially equivalent to K221805 (Heroic Faith International, Ltd., 2023) after a 60-day review. Its family tree reaches back 6 generations to 1977. 1 later device descends from it.
- Decided
- Nov 25, 2024
- Review
- 60 days
- Class
- Class II
- Product code
- DQD
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 6 generations to K771653 (1977). 8 ancestors in all. 1 later device descends from it, 1 citing it directly.
- Root · 6 generations backK771653 Electronic Stethoscope3M Company · 1977
- 5 generations backK961848 3M Littmann Electronic StethoscopeMinnesota Mining and Mfg. Co. · 1997
- 4 generations backK041934 3M Littmann Electronic Stethoscope, Model 30003M Company · 2004
- 3 generations backK050159 Modification to: 3M Littmann Electronic Stethoscope, Model 30003M Company · 2005
- 2 generations backK083903 3M Littmann Electronic Stethoscope, Model 32003M Company · 2009
- 1 generation backK221805 AccurSound Electronic Stethoscope AS-101Heroic Faith International, Ltd. · 2023
- This deviceK242971 AccurSound Electronic Stethoscope (AS101)Heroic Faith International, Ltd. · 2024
- Descendant · cites it directly · 0 of its ownK243183 RTMsense Respiratory Monitoring SystemRtm Vital Signs, LLC · 2025
Most influential descendants
Showing 1 of 1 · See all- K243183RTMsense Respiratory Monitoring SystemRtm Vital Signs, LLC · 2025 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −6 | K771653 | Electronic Stethoscope | 3M Company | 1977 | — |
| −5 | K961848 | 3M Littmann Electronic Stethoscope | Minnesota Mining and Mfg. Co. | 1997 | — |
| −4 | K041934 | 3M Littmann Electronic Stethoscope, Model 3000 | 3M Company | 2004 | — |
| −3 | K050159 | Modification to: 3M Littmann Electronic Stethoscope, Model 3000 | 3M Company | 2005 | — |
| −2 | K083903 | 3M Littmann Electronic Stethoscope, Model 3200 | 3M Company | 2009 | — |
| −1 | K221805 | AccurSound Electronic Stethoscope AS-101 | Heroic Faith International, Ltd. | 2023 | — |
| 0 (this device) | K242971 | AccurSound Electronic Stethoscope (AS101) | Heroic Faith International, Ltd. | 2024 | — |
| +1 | K243183 | RTMsense Respiratory Monitoring System | Rtm Vital Signs, LLC | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2001 | 1 | 0 |
| 2005 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2025 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in DQD? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new DQD device
- #1 K200776 Eko COREscore 25.2 · 8 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K221805 | AccurSound Electronic Stethoscope AS-101Summary page 5…Class: Class II Product Code: DQD Classification Panel: Cardiovascular 4. Predicate Device AccurSound Electronic Stethoscope AS-101 (K221805) 5. Device Description This submission is for device “The AccurSound Electronic Stethoscope AS-101 (“AS-101”)”. This submiss… | 2023 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K243183 | RTMsense Respiratory Monitoring System | 2025 | 0 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 47 years and passes through 3 companies; a new generation was cleared every 7.1 years on median.
- None of the 8 ancestors has a recall.
- Of its descendants, K243183 (Rtm Vital Signs, LLC, 2025) has gone furthest, with 0 descendants of its own.
How does its category compare?
All DQD devicesDQD Stethoscope, Electronic: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.
FDA decisions per year · DQD
3in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DQD
89in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DQD
No recall names DQD since 2007.
Adverse event reports per year · DQD
1in 2024
MAUDE reports naming product code DQD, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 2 | — | 0 | 0 |
| 2008 | 1 | — | 0 | 0 |
| 2009 | 6 | 161 | 0 | 0 |
| 2010 | 1 | — | 0 | 0 |
| 2011 | 4 | 107 | 0 | 1 |
| 2012 | 2 | — | 0 | 0 |
| 2013 | 5 | 70 | 0 | 1 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 2 | — | 0 | 0 |
| 2016 | 3 | 250 | 0 | 0 |
| 2017 | 4 | 109 | 0 | 0 |
| 2018 | 4 | 131 | 0 | 0 |
| 2019 | 4 | 262 | 0 | 0 |
| 2020 | 6 | 104 | 0 | 0 |
| 2021 | 4 | 137 | 0 | 0 |
| 2022 | 8 | 203 | 0 | 0 |
| 2023 | 10 | 132 | 0 | 0 |
| 2024 | 4 | 153 | 0 | 1 |
| 2025 | 3 | 89 | 0 | 0 |
| 2026 | 6 | 236 | 0 | — |
What is it indicated for?
The AS-101 is an electronic stethoscope intended for the detection and amplification of sounds associated with the heart, lungs, arteries, veins, and other internal organs. It can be used on any person undergoing a physical assessment. The device is intended to be operated only by healthcare professionals for diagnostic decision support in clinical settings.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K242971 · printed Nov 4, 2026
Cite this page
510(k) Report. “K242971: AccurSound Electronic Stethoscope (AS101).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K242971
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026