# K010464: Radcalc, Model V.4.0

- Pathway: 510(k) (Traditional)
- Applicant: Lifeline Software, Inc.
- Decided: May 17, 2001 after 90 days
- Product code: IYE (Accelerator, Linear, Medical)
- Device class: 2
- Regulation: 21 CFR 892.5050
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
47 later devices descend from it; 5 cite it directly.
0 of 48 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
- K012227: Mucheck - Monitor Unit Validation Program, Model V4.1 (2001), 40 descendants of its own
- K072374: Compass (2007), 31 descendants of its own
- K140660: MOBIUS3D (2014), 23 descendants of its own
- K061152: Mucheck V7.0 (2006), 21 descendants of its own
- K090531: Radcalc Software, Version 6.0 (2009), 17 descendants of its own

Source page: https://510kreport.com/device/K010464
Methodology: https://510kreport.com/methodology