510(k) · Cleared
ClearedTherasnore
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Distar, LLC · LRK Device, Anti-Snoring
Cleared on Dec 12, 2014 as substantially equivalent to K113022 (Sleep Science Partners, Inc., 2012) and 1 other predicate after a 269-day review. Its family tree reaches back 5 generations to 1989.
- Decided
- Dec 12, 2014
- Review
- 269 days
- Class
- Class II
- Product code
- LRK
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 5 generations to K882303 (1989). 13 ancestors in all. No later device cites it as a predicate yet.
- Root · 5 generations backK882303 H&M Anti-Snoring DeviceHays & Meade, Inc. · 1989
- 4 generations backK962516 Tap Anti-Snoring DeviceNellcor Puritan Bennett, Inc. · 1996
- 3 generations backK972061 TOAW. Keith Thornton, D.D.S. · 1997
- 2 generations backK061688 Anti-Snoring / Sleep Apnea DeviceTomed Dr. Toussaint GmbH · 2006
- 1 generation backK113022 PuresleepSleep Science Partners, Inc. · 2012
- This deviceK140663 TherasnoreDistar, LLC · 2014
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K882303 | H&M Anti-Snoring Device | Hays & Meade, Inc. | 1989 | — |
| −4 | K962516 | Tap Anti-Snoring Device | Nellcor Puritan Bennett, Inc. | 1996 | — |
| −3 | K972061 | TOA | W. Keith Thornton, D.D.S. | 1997 | — |
| −2 | K061688 | Anti-Snoring / Sleep Apnea Device | Tomed Dr. Toussaint GmbH | 2006 | — |
| −1 | K113022 | Puresleep | Sleep Science Partners, Inc. | 2012 | — |
| 0 (this device) | K140663 | Therasnore | Distar, LLC | 2014 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1993 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 2004 | 3 | 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 LRK? 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 LRK device
- #1 K252531 Myosa (S1H, S1, S2, S3, S1M, S2M); Myosa for…score 16.3 · 9 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the 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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K113022 | PuresleepSummary page 6…) Reference Product Number Code PureSleep Sleep Science Partners K113022 LRK Inc. Adjustable Therasnore Distar, LLC K973038… | 2012 |
| * | K973038 | Adjustable TherasnoreSummary page 6…Sleep Sleep Science Partners K113022 LRK Inc. Adjustable Therasnore Distar, LLC K973038 LRK 2 Technical Characteristics Compared to Pred… | 1997 |
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 25 years and passes through 6 companies; a new generation was cleared every 5.8 years on median.
- None of the 13 ancestors has a recall.
How does its category compare?
All LRK devicesLRK Device, Anti-Snoring: FDA decisions, review times, recalls and adverse event reports over 20 years. 2014, this device’s year, is highlighted.
FDA decisions per year · LRK
14in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LRK
107in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LRK
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LRK
653in 2025
MAUDE reports naming product code LRK, 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 | 1 | — | 0 | 0 |
| 2008 | 3 | 109 | 0 | 1 |
| 2009 | 3 | 88 | 2 | 11 |
| 2010 | 8 | 195 | 0 | 7 |
| 2011 | 10 | 134 | 0 | 69 |
| 2012 | 10 | 142 | 0 | 445 |
| 2013 | 9 | 233 | 0 | 72 |
| 2014 | 11 | 219 | 0 | 49 |
| 2015 | 6 | 117 | 0 | 28 |
| 2016 | 10 | 157 | 0 | 18 |
| 2017 | 7 | 170 | 0 | 32 |
| 2018 | 10 | 200 | 0 | 61 |
| 2019 | 13 | 150 | 0 | 56 |
| 2020 | 5 | 80 | 0 | 24 |
| 2021 | 10 | 126 | 0 | 49 |
| 2022 | 11 | 154 | 0 | 40 |
| 2023 | 5 | 156 | 0 | 50 |
| 2024 | 6 | 254 | 0 | 185 |
| 2025 | 14 | 107 | 1 | 653 |
| 2026 | 10 | 63 | 1 | — |
What is it indicated for?
Adjustable TheraSnore appliance is indicated for the treatment of snoring and mild to moderate obstructive sleep apnea in patients 18 years of age or older.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K140663 · printed Nov 6, 2026
Cite this page
510(k) Report. “K140663: Therasnore.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K140663
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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