# K133240: Varian Multileaf Collimator

- Pathway: 510(k) (Traditional)
- Applicant: Varian Medical Systems, Inc.
- Decided: Jan 31, 2014 after 102 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
Longest line of descent: 5 generations back to K926449 (1995). 7 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 9 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K071992: High-Definition 120 Multileaf Collimator (HD120 MLC), Varian Medical Systems (2007) Summary page 1.

## Most influential descendants
- K181404: Varian High Energy Linear Accelerator, UNIQUE, Varian Multileaf Collimator (2018), 0 descendants of its own

## Indications for use
The Varian Multileaf Collimator is provided to assist the clinician in the delivery, of external beam radiation to defined target volumes during radiosurgery and radiotherapy while sparing surrounding normal tissue and critical organs from excess radiation.

Source page: https://510kreport.com/device/K133240
Methodology: https://510kreport.com/methodology