# K203710: Storz Medical MAGNETOLITH Muscle Stimulator

- Pathway: 510(k) (Traditional)
- Applicant: Storz Medical AG
- Decided: May 3, 2021 after 133 days
- Product code: IPF (Stimulator, Muscle, Powered)
- Device class: 2
- Regulation: 21 CFR 890.5850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 7 generations back to K940301 (1994). 27 ancestors in all.
4 later devices descend from it; 2 cite it directly.
0 of 32 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K160992: HPM-6000, BTL Industries, Inc. (2016) Summary page 4.
- K151834: BEMER Classic Set, BEMER Pro-Set, Bemer Int AG (2017) Summary page 4.

## Most influential descendants
- K240234: BTL-899MS (2024), 2 descendants of its own
- K253408: CoolTone (2026), 0 descendants of its own
- K251594: truFlex (2025), 0 descendants of its own
- K240348: Quantum Mitohormesis (QMT) (M2101) (2024), 0 descendants of its own

## Indications for use
The MAGNETOLITH Muscle Stimulator is indicated for: -Relaxation of muscle spasms, -Prevention or retardation of disuse atrophy, -Increase local blood circulation, -Muscle re-education, -Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis, -Maintaining or increasing range of motion.

Source page: https://510kreport.com/device/K203710
Methodology: https://510kreport.com/methodology