# K983732: Thorax FD and Multix FD

- Pathway: 510(k) (Traditional)
- Applicant: Siemens Medical Solutions USA, Inc.
- Decided: Apr 21, 1999 after 181 days
- Product code: MQB (Solid State X-Ray Imager (Flat Panel/Digital Imager))
- Device class: 2
- Regulation: 21 CFR 892.1680
- 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: 2 generations back to K803130 (1981). 4 ancestors in all.
187 later devices descend from it; 4 cite it directly.
0 of 192 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K924459: Digiscan 2, Siemens Medical Solutions USA, Inc. (1992) Summary page 2.
- K971452: Multix Top/Pro Radiographic X-Ray Table, Siemens Medical Solutions USA, Inc. (1997) Summary page 2.
- (no number) THORAMAT Vertical Chest X-ray System: named in the summary without a submission number

## Most influential descendants
- K992794: Stingray DR, Model 1 (1999), 103 descendants of its own
- K013826: Axiom Aristos FX (Multi Purpose Radiography System) (2002), 81 descendants of its own
- K061054: Axiom Aristos FX Plus (2006), 80 descendants of its own
- K062623: Axiom Luminos DRF (2007), 78 descendants of its own
- K024147: Paxscan 4030 Medical Digital Imaging System (2003), 78 descendants of its own

## Recalls of this device
- Jun 5, 2013 · Class II · Z-1795-2013: Siemens issued a Field Safety Notice about the potential hazard to patients or operators when using the function "table top float" of the AXIOM Aristos MX. When repositioning a patient lying on the ta

## Indications for use
The SIEMENS Flat Panel Detector, in both the THORAX FD and the MULTIX FD systems, allows acquisition of x-ray exposures without the use of conventional film/screen systems. The THORAX FD system is a stand alone automated chest unit, while the MULTIX FD is a universal radiographic x-ray system. The MULTIX FD and THORAX FD both allow radiographic exposures of the whole body including skull, spinal column, chest, abdomen, extremities, and excluding mammography. Radiographic exposures may be taken with the patient in the sitting, standing, or supine positions.

Source page: https://510kreport.com/device/K983732
Methodology: https://510kreport.com/methodology