# K123500: Aquilion LB Triton V4.91

- Pathway: 510(k) (Traditional)
- Applicant: Toshibamedical Systems Corporation
- Decided: May 2, 2013 after 170 days
- Product code: JAK (System, X-Ray, Tomography, Computed)
- Device class: 2
- Regulation: 21 CFR 892.1750
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K903701 (1990). 6 ancestors in all.
4 later devices descend from it; 2 cite it directly.
0 of 11 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K050458: TSX-201A Aquilion LB CT Scanner, Toshiba America Medical Systems, In.C (2005) Summary page 1.
- K113466: Aquilion One, Toshiba Medical Systems Coporation, Japan (2012) Summary page 1.

## Most influential descendants
- K140651: Celesteion, Pca-9000A/2 (2014), 2 descendants of its own
- K170490: Celesteion, PCA-9000A/3 (2017), 1 descendant of its own
- K181646: Celesteion, PCA-9000A/3, V6.5 (2018), 0 descendants of its own
- K150003: Aquilion LB, TSX-201A/3, V6.0 (2015), 0 descendants of its own

## Indications for use
This device is indicated to acquire and display cross-sectional volumes of the whole body, to include the head. The Aquilion has the capability to provide volume sets. These volume sets can be used to perform specialized studies, using indicated software/hardware, by a trained and qualified physician.

Source page: https://510kreport.com/device/K123500
Methodology: https://510kreport.com/methodology