# K003507: Medrelief

- Pathway: 510(k) (Traditional)
- Applicant: Healthonics, Inc.
- Decided: Feb 21, 2001 after 100 days
- Product code: GZJ (Stimulator, Nerve, Transcutaneous, For Pain Relief)
- Device class: 2
- Regulation: 21 CFR 882.5890
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
18 later devices descend from it; 2 cite it directly.
0 of 19 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K013167: MODEL7500 Microcurrent Tens Device, MCT-F5, MCT-F50, MCT-F500 (2002), 13 descendants of its own
- K090042: Painmaster MCT Patch (2009), 11 descendants of its own
- K130114: Painmaster MCT Patch (2013), 5 descendants of its own
- K120500: The Pain Pilot (a.K.a Pain Pilot) (2012), 4 descendants of its own
- K030998: Medrelief SE Series, Models SE-50, SE-100, SE-200, SE-300 (2003), 3 descendants of its own

Source page: https://510kreport.com/device/K003507
Methodology: https://510kreport.com/methodology