# K173940: Astroid Planning App

- Pathway: 510(k) (Traditional)
- Applicant: .Decimal, LLC
- Decided: May 15, 2018 after 140 days
- Product code: MUJ (System, Planning, Radiation Therapy Treatment)
- 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: 14 generations back to K010975 (2001). 71 ancestors in all.
No later device cites it as a predicate yet.
0 of 72 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K172163: Eclipse Treatment Planning System, Varian Medical Systems, Inc. (2017) Summary page 5.
- K140187: Ray Station, Raysearch Laboratories AB (2014) Summary page 5.

## Indications for use
The Astroid Planning App is an interactive end user application for proton treatment planning for the intended use and primary purpose of enabling radiotherapy professionals to efficiently design and analyze proton radiotherapy treatment plans. This Astroid Planning App leverages the existing .decimal Astroid Dosimetry App [FDA 510(k) K150547], which is a library of treatment planning functions accessed through the Thinknode® cloud services framework, for device creation, dose calculation, optimization, and all other dosimetry and processing calculations. Since the Astroid Dosimetry App is responsible for performing the calculations, the scope of this Astroid Planning App is to be the user interface for end users to input treatment planning data and review the results. Typical indications for use of this application are for the treatment of persons with cancer, over a wide range of potential disease locations. In the most common use case of the software, users will import patient data from existing imaging and contouring software programs, manage physician prescription and intent information, develop a proton treatment plan, and analyze the plan to determine how well it meets the physician’s goals. Since the critical treatment planning functions and calculations are handled outside this software application, by a software of known quality and pedigree, the primary and most frequently used functions of this software are the record keeping service (for patient data storage), user interface controls, and visualization tools. Furthermore, since the accuracy of information computed and displayed by an application such as this is very important to the proper treatment of patients, it is critical that users have the appropriate educational and clinical experience backgrounds to adequately understand and use the product. Additionally, since each radiotherapy treatment machine produces a unique beam of radiation, there is much responsibility on the end users to adequately commission and test this software over the full range of expected treatment conditions before the system is utilized for patient treatment.

Source page: https://510kreport.com/device/K173940
Methodology: https://510kreport.com/methodology