510(k) · Cleared
ClearedAusculThing ACC
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Ausculthing OY · DQD Stethoscope, Electronic
Cleared on Jul 12, 2023 as substantially equivalent to K181988 (Csd Labs GmbH, 2019) after a 110-day review. Its family tree reaches back 12 generations to 1991.
- Decided
- Jul 12, 2023
- Review
- 110 days
- Class
- Class II
- Product code
- DQD
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 12 generations to K910772 (1991). 54 ancestors in all, the oldest K771653 (1977). No later device cites it as a predicate yet.
- Root · 12 generations backK910772 Propaq 102, 104 and 106Protocol Systems, Inc. · 1991
- 8 generations between
- 3 generations backK121617 SensicardiacDiacoustic Medical (Pty) · 2012
- 2 generations backK131044 Sensicardiac Mobi Diagnostic Heart Murmur ApplicationDiacoustic Medical Devices (Pty), Ltd. · 2013
- 1 generation backK181988 eMurmur IDCsd Labs GmbH · 2019
- This deviceK230823 AusculThing ACCAusculthing OY · 2023
Show all 12 generations
- Root · 12 generations backK910772 Propaq 102, 104 and 106Protocol Systems, Inc. · 1991
- 11 generations backK972020 Oscillomate Non-Invasive Blood Pressure MonitorCas Medical Systems, Inc. · 1998
- 10 generations backK980879 Oscillomate Nibp / SP02 Ems MonitorCas Medical Systems, Inc. · 1998
- 9 generations backK982776 9303 Neonatal/Adult Vital Signs MonitorCas Medical Systems, Inc. · 1998
- 8 generations backK013319 Nonin Model 2120 Pulse Oximeter and Noninvasive Blood Pressure…Nonin Medical, Inc. · 2002
- 7 generations backK041156 Avant Digital Pulse Oximetry System, Models 4000, 4001Nonin Medical, Inc. · 2004 · Recalled
- 6 generations backK043359 4100 Patient Oximeter ModuleNonin Medical, Inc. · 2005
- 5 generations backK083309 Zargis Acoustic Cardioscan, Version 9.33Zargis Medical Corp. · 2009
- 4 generations backK110704 SENSIDiacoustic Medical Devices (Pty), Ltd. · 2011
- 3 generations backK121617 SensicardiacDiacoustic Medical (Pty) · 2012
- 2 generations backK131044 Sensicardiac Mobi Diagnostic Heart Murmur ApplicationDiacoustic Medical Devices (Pty), Ltd. · 2013
- 1 generation backK181988 eMurmur IDCsd Labs GmbH · 2019
- This deviceK230823 AusculThing ACCAusculthing OY · 2023
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −12 | K910772 | Propaq 102, 104 and 106 | Protocol Systems, Inc. | 1991 | — |
| −11 | K972020 | Oscillomate Non-Invasive Blood Pressure Monitor | Cas Medical Systems, Inc. | 1998 | — |
| −10 | K980879 | Oscillomate Nibp / SP02 Ems Monitor | Cas Medical Systems, Inc. | 1998 | — |
| −9 | K982776 | 9303 Neonatal/Adult Vital Signs Monitor | Cas Medical Systems, Inc. | 1998 | — |
| −8 | K013319 | Nonin Model 2120 Pulse Oximeter and Noninvasive Blood Pressure (Nibp) Monitor | Nonin Medical, Inc. | 2002 | — |
| −7 | K041156 | Avant Digital Pulse Oximetry System, Models 4000, 4001 | Nonin Medical, Inc. | 2004 | 1 |
| −6 | K043359 | 4100 Patient Oximeter Module | Nonin Medical, Inc. | 2005 | — |
| −5 | K083309 | Zargis Acoustic Cardioscan, Version 9.33 | Zargis Medical Corp. | 2009 | — |
| −4 | K110704 | SENSI | Diacoustic Medical Devices (Pty), Ltd. | 2011 | — |
| −3 | K121617 | Sensicardiac | Diacoustic Medical (Pty) | 2012 | — |
| −2 | K131044 | Sensicardiac Mobi Diagnostic Heart Murmur Application | Diacoustic Medical Devices (Pty), Ltd. | 2013 | — |
| −1 | K181988 | eMurmur ID | Csd Labs GmbH | 2019 | — |
| 0 (this device) | K230823 | AusculThing ACC | Ausculthing OY | 2023 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1977 | 1 | 0 |
| 1986 | 1 | 0 |
| 1990 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 3 | 0 |
| 2005 | 2 | 0 |
| 2006 | 1 | 0 |
| 2007 | 2 | 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 |
|---|---|---|---|
| * | K181988 | eMurmur IDSummary page 4…ph Regulation number: 21 CFR 870.1875, 870.2390 Product code: DQD, DQC Classification panel: Cardiology Predicate devices Primary predicate: K181988 Emurmur ID K230823 5.1 Device Description AusculThing A… | 2019 |
What descends from it?
No later submission names this one as a predicate yet.
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 32 years and passes through 8 companies; a new generation was cleared every 2.4 years on median.
- 2 of the 54 ancestors have a recall of any class.
- 2 other devices also cite its predicate K181988.
How does its category compare?
All DQD devicesDQD Stethoscope, Electronic: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, 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 AusculThing ACC software is a decision-support SW for the healthcare provider (the user) in the evaluation of patient heart sounds. The ACC is used to record, display, and analyze acoustic signals of the heart recorded by means of an electronic stethoscope. It is intended for use on adult and pediatric patients. The automated analysis will categorize heart sounds as either “abnormal” if any heart murmur of any intensity is identified in any position…
Read the full statement (161 words)
The AusculThing ACC software is a decision-support SW for the healthcare provider (the user) in the evaluation of patient heart sounds. The ACC is used to record, display, and analyze acoustic signals of the heart recorded by means of an electronic stethoscope. It is intended for use on adult and pediatric patients. The automated analysis will categorize heart sounds as either “abnormal” if any heart murmur of any intensity is identified in any position across the precordium, or “normal” if either no murmurs or benign murmurs are identified. ACC is indicated for use in a setting where auscultation would typically be performed by a healthcare provider. It is not intended as a sole means of diagnosis. The heart sound interpretation offered by the software is only significant when used in conjunction with physician over-read and including all other relevant patient data. The device is intended for Rx use only. The AusculThing ACC shall be used together with Thinklabs One electronic stethoscope.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K230823 · printed Nov 6, 2026
Cite this page
510(k) Report. “K230823: AusculThing ACC.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K230823
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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