510(k) · Cleared
ClearedSLENDERTONE CoreFit Abs 8, Type 734
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Bio-Medical Research, Ltd. · NGX Stimulator, Muscle, Powered, For Muscle Conditioning
Cleared on Oct 25, 2018 as substantially equivalent to K100320 (Bio-Medical Research, Ltd., 2010) after a 224-day review. Its family tree reaches back 4 generations to 2001. 1 later device descends from it.
- Decided
- Oct 25, 2018
- Review
- 224 days
- Class
- Class II
- Product code
- NGX
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 4 generations to K010335 (2001). 5 ancestors in all. 1 later device descends from it, 1 citing it directly.
- Root · 4 generations backK010335 Slendertone Flex, Model, 512Bio-Medical Research, Ltd. · 2001
- 3 generations backK022855 Slendertone Flex Bottom & Thigh Toning System, Type 511Bio-Medical Research, Ltd. · 2003
- 2 generations backK070142 Slendertone System Abs, Models 390, E10, X10; Slendertone System…Bio-Medical Research Corp. · 2007
- 1 generation backK100320 Slendertone System Ultra Model E70/X70Bio-Medical Research, Ltd. · 2010
- This deviceK180688 SLENDERTONE CoreFit Abs 8, Type 734Bio-Medical Research, Ltd. · 2018
- Descendant · cites it directly · 0 of its ownK203513 SLENDERTONE Evolve Abs, Type 735Bio-Medical Research, Ltd. · 2021
Most influential descendants
Showing 1 of 1 · See all- K203513SLENDERTONE Evolve Abs, Type 735Bio-Medical Research, Ltd. · 2021 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K010335 | Slendertone Flex, Model, 512 | Bio-Medical Research, Ltd. | 2001 | — |
| −3 | K022855 | Slendertone Flex Bottom & Thigh Toning System, Type 511 | Bio-Medical Research, Ltd. | 2003 | — |
| −2 | K070142 | Slendertone System Abs, Models 390, E10, X10; Slendertone System Shorts… | Bio-Medical Research Corp. | 2007 | — |
| −1 | K100320 | Slendertone System Ultra Model E70/X70 | Bio-Medical Research, Ltd. | 2010 | — |
| 0 (this device) | K180688 | SLENDERTONE CoreFit Abs 8, Type 734 | Bio-Medical Research, Ltd. | 2018 | — |
| +1 | K203513 | SLENDERTONE Evolve Abs, Type 735 | Bio-Medical Research, Ltd. | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2003 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2021 | 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 NGX? 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 NGX device
- #1 K250146 SofWave Systemscore 15.5 · 12 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 |
|---|---|---|---|
| * | K100320 | Slendertone System Ultra Model E70/X70Summary page 4…uscle conditioning Product Code: NGX Device Class: 2 III. PREDICATE DEVICES 510(k) Number: K100320 (Primary Predicate) Manufacturer: Bio-Medical Research Ltd. Trade Name: Sle… | 2010 |
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 |
|---|---|---|---|
| K203513 | SLENDERTONE Evolve Abs, Type 735 | 2021 | 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 17 years and passes through 2 companies; a new generation was cleared every 4.0 years on median.
- None of the 5 ancestors has a recall.
- Of its descendants, K203513 (Bio-Medical Research, Ltd., 2021) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K100320.
How does its category compare?
All NGX devicesNGX Stimulator, Muscle, Powered, For Muscle Conditioning: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.
FDA decisions per year · NGX
15in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NGX
93in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NGX
2in 2013
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · NGX
15in 2025
MAUDE reports naming product code NGX, 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 | 7 | 135 | 0 | 0 |
| 2008 | 3 | 209 | 0 | 0 |
| 2009 | 4 | 132 | 0 | 0 |
| 2010 | 6 | 180 | 0 | 0 |
| 2011 | 5 | 291 | 0 | 1 |
| 2012 | 3 | 362 | 0 | 0 |
| 2013 | 6 | 269 | 2 | 1 |
| 2014 | 6 | 298 | 0 | 0 |
| 2015 | 9 | 184 | 0 | 7 |
| 2016 | 4 | 240 | 0 | 21 |
| 2017 | 10 | 108 | 0 | 2 |
| 2018 | 6 | 104 | 0 | 6 |
| 2019 | 14 | 167 | 0 | 4 |
| 2020 | 11 | 207 | 0 | 7 |
| 2021 | 12 | 256 | 0 | 5 |
| 2022 | 6 | 307 | 0 | 7 |
| 2023 | 12 | 96 | 0 | 8 |
| 2024 | 12 | 207 | 0 | 11 |
| 2025 | 15 | 93 | 0 | 15 |
| 2026 | 4 | 118 | 0 | — |
What is it indicated for?
The SLENDERTONE® CoreFit Abs 8, Type 734 is indicated for the improvement of abdominal muscle tone, for strengthening of abdominal muscles, and for the development of a firmer abdomen.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K180688 · printed Nov 6, 2026
Cite this page
510(k) Report. “K180688: SLENDERTONE CoreFit Abs 8, Type 734.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K180688
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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