510(k) · Cleared
ClearedMedley Gold
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
American Dental Sleep Medicine, Ip, LLC · LRK Device, Anti-Snoring
Cleared on Jun 26, 2014 as substantially equivalent to K971794 (Frantz Design, Inc., 1997) and 2 other predicates after a 125-day review. Its family tree reaches back 5 generations to 1989.
- Decided
- Jun 26, 2014
- Review
- 125 days
- Class
- Class II
- Product code
- LRK
- Recalls
- None
- Predicates
- 3
Its longest line of descent runs back 5 generations to K882303 (1989). 11 ancestors in all, the oldest K880956 (1988). 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 backK042161 Anti-Snoring/Sleep Apnea DeviceRj & VK Bird Pty, Ltd. · 2004
- 2 generations backK050592 Somnomed Mas RxaSomnomed, Ltd. · 2005
- 1 generation backK113201 Narval CCResmed Sas · 2011
- This deviceK140435 Medley GoldAmerican Dental Sleep Medicine, Ip, 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 | K042161 | Anti-Snoring/Sleep Apnea Device | Rj & VK Bird Pty, Ltd. | 2004 | — |
| −2 | K050592 | Somnomed Mas Rxa | Somnomed, Ltd. | 2005 | — |
| −1 | K113201 | Narval CC | Resmed Sas | 2011 | — |
| 0 (this device) | K140435 | Medley Gold | American Dental Sleep Medicine, Ip, LLC | 2014 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1988 | 1 | 0 |
| 1990 | 1 | 0 |
| 1993 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 2003 | 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 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? (3)
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 |
|---|---|---|---|
| * | K971794 | Elastic Mandibular Advancement (Ema) ApplianceSummary page 1…oring and obstructive sleep apnea 21 CER 872.5570 Class 2 Predicate Devices: K97 1794 - Frantz - EMA KI 113201 - ResMed - Narval CC K023836 -… | 1997 |
| * | K113201 | Narval CCSummary page 1…ased upon the identical designs of 3 already cleared predicate designs. 1) Bands a. K971794 - Frantz EMA 2) Links a. K 113201 - ResMed Narva! CC 3) Rods a. K023836 - Strong SHAD PDF P… | 2011 |
| * | K023836 | The Suad DeviceSummary page 1…2 Predicate Devices: K97 1794 - Frantz - EMA KI 113201 - ResMed - Narval CC K023836 -Strong Dental - SUAD Device Description The Medley Gold series oral appliance design concept is based upon the use of a standar… | 2003 |
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 6.4 years on median.
- None of the 11 ancestors has a recall.
- 9 other devices also cite its predicate K971794.
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?
A customized mandibular repositioning device intended to reduce or alleviate night-time snoring and mild to moderate obstructive sleep apnea in adult patients 18 years or older.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K140435 · printed Nov 5, 2026
Cite this page
510(k) Report. “K140435: Medley Gold.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K140435
Report an extraction error
Are you the manufacturer?
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