# K032594: One Dimensional Water Phantom, WP 1D

- Pathway: 510(k) (Traditional)
- Applicant: Wellhofer Dosimetrie
- Decided: Sep 5, 2003 after 14 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: 1 generation back to K943199 (1994). 1 ancestor in all.
1 later device descends from it; 1 cites it directly.
0 of 3 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K943199: Motorized Depth Dose Apparatus, Medtec, Inc. (1994) Summary page 1.

## Most influential descendants
- K191821: Blue Phantom PT (2020), 0 descendants of its own

## Indications for use
The Clinical Reference Dosimetry Phantom WP ID is used to position various radiation detectors in water or air. It consists of a cubic tank and a precision one-dimensional hand crank or motor driven servo. By design it is suitable to act as a phantom according to various dosimetric protocols (e.g AAPM's TG-51 or IAEA's TRS-398). The device is intended to be used by experienced professionals entrusted with dosimetric functions only.

Source page: https://510kreport.com/device/K032594
Methodology: https://510kreport.com/methodology