510(k) Report

510(k) · Cleared

Cleared

Tyto Stethoscope

K160401510(k) TraditionalCleared Oct 19, 2016250-day reviewClass II21 CFR 870.1875

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Tyto Care, Ltd. · DQD Stethoscope, Electronic

Cleared on Oct 19, 2016 as substantially equivalent to K102893 (Rnk Products, Inc., 2011) and 1 other predicate after a 250-day review. Its family tree reaches back 6 generations to 1996. 21 later devices descend from it.

Decided
Oct 19, 2016
Review
250 days
Class
Class II
Product code
DQD
Recalls
None
Predicates
2

Its longest line of descent runs back 6 generations to K952882 (1996). 19 ancestors in all, the oldest K771653 (1977). 21 later devices descend from it, 2 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2009: 1 other ancestor2005: 2 other ancestors2004: 1 other ancestor2001: 1 other ancestor1999: 1 other ancestor1997: 2 other ancestors1996: 4 other ancestors1977: 1 other ancestor2021: 2 descendants cleared2018: 1 descendant cleared2026: 4 descendants cleared2023: 5 descendants cleared2025: 2 descendants cleared2020: 1 descendant cleared2022: 4 descendants cleared2024: 2 descendants cleared×2: 2 generations cleared close together, K952882 (1996), K964554 (1996) K973873 · Digital Personal Telemedicine Module, Digital PTM 1 · American Telecare, Inc. · 1997K034046 · RNK Telephonic Stethoscope, Model TR-1 · Rnk Products · 2004K072026 · RNK Electronic Stethoscope · Rnk Products, Inc. · 2007K102893 · PCP/PC Stethoscope · Rnk Products, Inc. · 201119801990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor2 generations back: 2 other ancestors3 generations back: 4 other ancestors4 generations back: 5 other ancestors5 generations back: 1 other ancestor 1 generation forward: 2 descendants2 generations forward: 6 descendants3 generations forward: 8 descendants4 generations forward: 3 descendants5 generations forward: 2 descendants K102893 · PCP/PC Stethoscope · Rnk Products, Inc. · 2011K072026 · RNK Electronic Stethoscope · Rnk Products, Inc. · 2007K034046 · RNK Telephonic Stethoscope, Model TR-1 · Rnk Products · 2004K973873 · Digital Personal Telemedicine Module, Digital PTM 1 · American Telecare, Inc. · 1997K964554 · Personal Telemedicine Module · American Telecare, Inc. · 1996K952882 · Personal Telemedicine System · American Telecare, Inc. · 1996−50+5
  1. Root · 6 generations backK952882 Personal Telemedicine SystemAmerican Telecare, Inc. · 1996
  2. 5 generations backK964554 Personal Telemedicine ModuleAmerican Telecare, Inc. · 1996
  3. 4 generations backK973873 Digital Personal Telemedicine Module, Digital PTM 1American Telecare, Inc. · 1997
  4. 3 generations backK034046 RNK Telephonic Stethoscope, Model TR-1Rnk Products · 2004
  5. 2 generations backK072026 RNK Electronic StethoscopeRnk Products, Inc. · 2007
  6. 1 generation backK102893 PCP/PC StethoscopeRnk Products, Inc. · 2011
  7. This deviceK160401 Tyto StethoscopeTyto Care, Ltd. · 2016
  8. Descendant · cites it directly · 19 of its ownK181612 Tyto Stethoscope (OTC)Tyto Care, Ltd. · 2018
  9. Descendant · 2 generations on · 13 of its ownK200776 Eko COREEko Devices, Inc. · 2020
  10. Descendant · 3 generations on · 2 of its ownK231551 StethophoneSparrow Acoustics, Inc. · 2023
  11. Descendant · 3 generations on · 2 of its ownK210736 doctorgram Stethoscope DES-IGv Concepts · 2021
  12. Descendant · 4 generations on · 1 of its ownK240901 StethophoneSparrow Acoustics, Inc. · 2024

Showing 5 of 21 descendants. See all descendants

Descendants cleared per year

2018: 12020: 12021: 22022: 42023: 52024: 22025: 22026: 4
2018high 5 (2023) · low 0 (2019)2026

Most influential descendants

Showing 5 of 21 · See all
  • K181612Tyto Stethoscope (OTC)Tyto Care, Ltd. · 2018 · cites it directly19descendants
  • K200776Eko COREEko Devices, Inc. · 2020 · 2 generations on13descendants
  • K231551StethophoneSparrow Acoustics, Inc. · 2023 · 3 generations on2descendants
  • K210736doctorgram Stethoscope DES-IGv Concepts · 2021 · 3 generations on2descendants
  • K240901StethophoneSparrow Acoustics, Inc. · 2024 · 4 generations on1descendant
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−6K952882Personal Telemedicine SystemAmerican Telecare, Inc.1996—
−5K964554Personal Telemedicine ModuleAmerican Telecare, Inc.1996—
−4K973873Digital Personal Telemedicine Module, Digital PTM 1American Telecare, Inc.1997—
−3K034046RNK Telephonic Stethoscope, Model TR-1Rnk Products2004—
−2K072026RNK Electronic StethoscopeRnk Products, Inc.2007—
−1K102893PCP/PC StethoscopeRnk Products, Inc.2011—
0 (this device)K160401Tyto StethoscopeTyto Care, Ltd.2016—
+1K181612Tyto Stethoscope (OTC)Tyto Care, Ltd.2018—
+2K200776Eko COREEko Devices, Inc.2020—
+3K231551StethophoneSparrow Acoustics, Inc.2023—
+3K210736doctorgram Stethoscope DES-IGv Concepts2021—
+4K240901StethophoneSparrow Acoustics, Inc.2024—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
197710
199640
199720
199910
200110
200410
200520
200910

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201810
202010
202120
202240
202350
202420
202520
202640
FIG. 1 — Lineage of K160401, 1996–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

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. #1 K200776 Eko COREscore 25.2 · 8 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (2)

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.

TypeNumberDeviceApplicantDecidedRecalls
*K102893PCP/PC Stethoscope
Summary page 4
…Device Class: II Regulation Number: 870.1875 Panel: Cardiovascular Predicate Devices: • PCP PC Stethoscope [RNK Products, Inc.] cleared under K102893 • 3M Littmann 3200 Stethoscope [3M Health Care] cleared under K083903…
Rnk Products, Inc.2011—
*K0839033M Littmann Electronic Stethoscope, Model 3200
Summary page 4
…Cardiovascular Predicate Devices: • PCP PC Stethoscope [RNK Products, Inc.] cleared under K102893 • 3M Littmann 3200 Stethoscope [3M Health Care] cleared under K083903 K160401…
3M Company2009—

Also cleared against K102893: 1 other device →

What descends from it? (21)

See all 21

2 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K181612Tyto Stethoscope (OTC)Tyto Care, Ltd.201819
K202483MyHomeDocMyhomedoc, Ltd.20211

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 20 years and passes through 4 companies; a new generation was cleared every 3.6 years on median.
  • None of the 19 ancestors has a recall.
  • Of its descendants, K181612 (Tyto Care, Ltd., 2018) has gone furthest, with 19 descendants of its own.
  • 1 other device also cites its predicate K102893.

How does its category compare?

All DQD devices

DQD Stethoscope, Electronic: FDA decisions, review times, recalls and adverse event reports over 20 years. 2016, this device’s year, is highlighted.

FDA decisions per year · DQD

3in 2025

2007: 22008: 12009: 62010: 12011: 42012: 22013: 52015: 22016: 32017: 42018: 42019: 42020: 62021: 42022: 82023: 102024: 42025: 32026 (partial year): 6
2007high 10 (2023) · low 0 (2014)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DQD

89in 2025

2009: 161 days median2011: 107 days median2013: 70 days median2016: 250 days median2017: 109 days median2018: 131 days median2019: 262 days median2020: 104 days median2021: 137 days median2022: 203 days median2023: 132 days median2024: 153 days median2025: 89 days median2026 (partial year): 236 days median
2007high 262 (2019) · low 70 (2013)2026

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

2011: 12013: 12024: 1
2007high 1 (2011) · low 0 (2007)2025

MAUDE reports naming product code DQD, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20072—00
20081—00
2009616100
20101—00
2011410701
20122—00
201357001
20140—00
20152—00
2016325000
2017410900
2018413100
2019426200
2020610400
2021413700
2022820300
20231013200
2024415301
202538900
202662360—

What is it indicated for?

The Tyto Stethoscope is an electronic stethoscope that enables transmission of auscultation sound data, whereby a clinician at one location on an IP network can listen to the auscultation sounds of a patient on site or at a different location on the IP network with the signal carried on an IP connection between the two locations. The Tyto stethoscope is intended for use by professional users in a clinical environment or in conjunction with patients or lay users in a non-clinical environment.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K160401: Tyto Stethoscope.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K160401

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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