# K903701: Xpress

- Pathway: 510(k) (Traditional)
- Applicant: Toshiba America Medical Systems, In.C
- Decided: Nov 7, 1990 after 84 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
No predicates in its family tree.
21 later devices descend from it; 2 cite it directly.
0 of 22 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K982265: Aquilion CT Scanner, Model TSX-101A (1998), 19 descendants of its own
- K020385: CGS-30A Multislice Upgrade Kit for Aquilion CT Scanner, Model TSX-101A (2002), 15 descendants of its own
- K022050: CGS-31A Multislice Upgrade Kit for Aquilion CT Scanner. TSX-101A (Aquilion Advance Multi) (2002), 14 descendants of its own
- K050458: TSX-201A Aquilion LB CT Scanner (2005), 12 descendants of its own
- K123500: Aquilion LB Triton V4.91 (2013), 4 descendants of its own

Source page: https://510kreport.com/device/K903701
Methodology: https://510kreport.com/methodology