# K970464: P Reference TPS (Treatment Planning Software) 1.1

- Pathway: 510(k) (Traditional)
- Applicant: Northwest Medical Physics Equipment, Inc.
- Decided: Sep 5, 1997 after 210 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.
16 later devices descend from it; 4 cite it directly.
0 of 17 devices 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.

## Most influential descendants
- K983793: Preference Treatment System (1999), 13 descendants of its own
- K012575: Prefernce Imrt Treatment Planning Module (2002), 12 descendants of its own
- K060906: Calypso 4D Localization System (2006), 11 descendants of its own
- K080726: Calypso 4D Localization System (2008), 9 descendants of its own
- K102373: Calypso System with Dynamic Edge Gating (2010), 6 descendants of its own

## Indications for use
The indications for use of pReference Treapment Planning Software 1.1 are such intracranial diseases as gliomas, neuromas, meningiomas, astrocytomas, arteriovenous malformations, and metastatic carcinomas. The software is used to electronically import CT images containing the target to be irradiated, to determine the precise location of the target, to define and visualize treatment beam locations, and to . visyalize dose to the target and other structures.

Source page: https://510kreport.com/device/K970464
Methodology: https://510kreport.com/methodology