# K993821: Vectorsurge 4 Interferential Therapy Unit

- Pathway: 510(k) (Special)
- Applicant: Metron Medical Australia, Pty, Ltd.
- Decided: Dec 9, 1999 after 27 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
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
The indications for use of this device are: 1. Relaxation of muscle spasm. 2. Prevention or retardation of disuse atrophy. 3. Increasing local blood circulation. 4. Muscle re-education. 5. Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis. 6. Maintaining or increasing range of motion.

Source page: https://510kreport.com/device/K993821
Methodology: https://510kreport.com/methodology