# K040279: Vivaring Microwave Ablation Probe

- Pathway: 510(k) (Special)
- Applicant: Vivant Medical, Inc.
- Decided: Mar 2, 2004 after 26 days
- Product code: GEI (Electrosurgical, Cutting & Coagulation & Accessories)
- Device class: 2
- Regulation: 21 CFR 878.4400
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K861904 (1986). 10 ancestors in all.
3 later devices descend from it; 2 cite it directly.
0 of 14 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K023311: Loop Microwave Ablation Probe, Vivant Medical, Inc. (2003) Summary page 1.
- K032702: Vivatip Microwave Ablation Probe, Vivant Medical, Inc. (2003) Summary page 1.

## Most influential descendants
- K081042: Microthermx-100 Microwave Ablation System and Accessories (2008), 2 descendants of its own
- K100786: Microthermx Microwave Ablation System, Models MTX-180 or MTX (2010), 1 descendant of its own
- K141785: Micro Thermx Microwave Ablation System and Accessories (2015), 0 descendants of its own

## Indications for use
The VivaRingTM Microwave Ablation Probe is intended for coagulation of soft tissue. Not for use in cardiac procedures.

Source page: https://510kreport.com/device/K040279
Methodology: https://510kreport.com/methodology