# K173636: Velocity

- Pathway: 510(k) (Traditional)
- Applicant: Varian Medical Systems, Inc.
- Decided: Feb 15, 2018 after 83 days
- Product code: LLZ (System, Image Processing, Radiological)
- Device class: 2
- Regulation: 21 CFR 892.2050
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 12 generations back to K954874 (1996). 71 ancestors in all.
8 later devices descend from it; 4 cite it directly.
0 of 80 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K081076: Velocityais, Velocity AI, Velocityvx, Velocityrt, V-Response, Velocity Medical Solutions, LLC (2008) Summary page 4.
- K172218: MIM – Y90 Dosimetry, Mim Software, Inc. (2017) Summary page 4.

## Most influential descendants
- K182855: ProKnow DS (2019), 2 descendants of its own
- K191610: RTapp (2019), 1 descendant of its own
- K182966: PLANET Onco Dose (2019), 1 descendant of its own
- K251363: ProKnow DS (2025), 0 descendants of its own
- K241765: PLANET Onco Dose (3.2) (2025), 0 descendants of its own

## Indications for use
Velocity is a software package that provides the physicians a means for comparison of medical data including imaging data that is DICOM compliant. It allows the display, annotation, volume operation, volume rendering, registration, and fusion of medical images as an aid during use by diagnostic radiology, oncology, radiation therapy planning and other medical specialties. Velocity is not intended for mammography.

Source page: https://510kreport.com/device/K173636
Methodology: https://510kreport.com/methodology