510(k) · Cleared
ClearedHMP 4000 Interferential Stimulator
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Hmp 4000, Inc. · LIH Interferential Current Therapy
Cleared on Feb 25, 1993 after a 148-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 3 later devices descend from it.
- Decided
- Feb 25, 1993
- Review
- 148 days
- Class
- Class II
- Product code
- LIH
- Recalls
- None
- Predicates
- 0
3 later devices descend from it, 3 citing it directly.
- This deviceK924961 HMP 4000 Interferential StimulatorHmp 4000, Inc. · 1993
- Descendant · cites it directly · 0 of its ownK033358 Chronic Pain Suppressor CPS-2000, Model CPS-2000Surgitech, Inc. · 2003
- Descendant · cites it directly · 0 of its ownK020516 Care Ifc PlusCare Rehab, Inc. · 2002
- Descendant · cites it directly · 0 of its ownK013082 Medstar 100 Interferential StimlatorMednet Services, Inc. · 2001
Most influential descendants
Showing 3 of 3 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K924961 | HMP 4000 Interferential Stimulator | Hmp 4000, Inc. | 1993 | — |
| +1 | K033358 | Chronic Pain Suppressor CPS-2000, Model CPS-2000 | Surgitech, Inc. | 2003 | — |
| +1 | K020516 | Care Ifc Plus | Care Rehab, Inc. | 2002 | — |
| +1 | K013082 | Medstar 100 Interferential Stimlator | Mednet Services, Inc. | 2001 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in LIH? 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 LIH device
- #1 K231575 Vecttor VT-300score 7.1 · 2 generations · no Class I recall
What was it cleared against?
FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.
What descends from it? (3)
3 later devices cite it directly; ranked here by how many devices descend from each in turn.
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?
- Of its descendants, K033358 (Surgitech, Inc., 2003) has gone furthest, with 0 descendants of its own.
How does its category compare?
All LIH devicesLIH Interferential Current Therapy: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · LIH
1in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · LIH
Too few LIH 510(k)s in any year since 2007 to give a median.
Recalls per year · LIH
No recall names LIH since 2007.
Adverse event reports per year · LIH
1in 2025
MAUDE reports naming product code LIH, 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 | 0 | — | 0 | 14 |
| 2009 | 2 | — | 0 | 3 |
| 2010 | 2 | — | 0 | 2 |
| 2011 | 1 | — | 0 | 1 |
| 2012 | 2 | — | 0 | 1 |
| 2013 | 0 | — | 0 | 1 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 1 |
| 2016 | 0 | — | 0 | 1 |
| 2017 | 0 | — | 0 | 1 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 1 | — | 0 | 1 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 1 | — | 0 | 1 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 1 | — | 0 | 1 |
| 2025 | 0 | — | 0 | 1 |
| 2026 | 0 | — | 0 | — |
https://510kreport.com/device/K924961 · printed Nov 6, 2026
Cite this page
510(k) Report. “K924961: HMP 4000 Interferential Stimulator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K924961
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026