# K022307: Konrad, Model V.2.0

- Pathway: 510(k) (Traditional)
- Applicant: Mrc Systems GmbH
- Decided: Oct 8, 2002 after 84 days
- Product code: MUJ (System, Planning, Radiation Therapy Treatment)
- Device class: 2
- Regulation: 21 CFR 892.5050
- Recalls of this device: 1 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K884261 (1989). 6 ancestors in all.
20 later devices descend from it; 1 cites it directly.
0 of 27 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K992434: Itp, Model 1.0, Nucletron Corp. (2000) Summary page 1.

## Most influential descendants
- K061097: Coherence Dosimetrist, Model 2.2 (2006), 19 descendants of its own
- K101119: Syngo Dosimetrist Workspace V2.7 Model: 1056864 (2010), 18 descendants of its own
- K151380: syngo.via RT Image Suite (2015), 9 descendants of its own
- K162370: syngo.via RT Image Suite (2016), 8 descendants of its own
- K151887: syngo VSim (2015), 8 descendants of its own

## Recalls of this device
- Nov 6, 2009 · Not classified · Z-1834-2011: A problem in the software has the potential to be associated with the dose; when a template is created the user has the possibility to predefine organs. For the Target the user defines the max. dose a

## Indications for use
KonRad is intended to optimize multi-leaf collimator (MLC) positions or partial attenuation block shapes for intensity modulated external beam radiation therapy (IMRT). Once the optimization is complete the dose distribution and dose volume histogram curves are displayed for the user to evaluate. After approval the results are exported to the delivery equipment, Linear Accelerator or Record and Verify system, for final verification before treatment delivery.

Source page: https://510kreport.com/device/K022307
Methodology: https://510kreport.com/methodology