# K050400: BD Phoenix Automated Microbiology System - Cephalothin (GP) 0.5-64 UG/ML

- Pathway: 510(k) (Traditional)
- Applicant: Becton, Dickinson & CO
- Decided: Mar 22, 2005 after 34 days
- Product code: LON (System, Test, Automated, Antimicrobial Susceptibility, Short Incubation)
- Device class: 2
- Regulation: 21 CFR 866.1645
- 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: 1 generation back to K020322 (2002). 3 ancestors in all.
No later device cites it as a predicate yet.
0 of 4 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K020321: BD Phoenix Automated Microbiology System, Becton, Dickinson & CO (2002) Summary page 3.
- K020323: BD Phoenix Automated Microbiology System, Becton, Dickinson & CO (2002) Summary page 3.
- K020322: BD Phoenix Automated Microbiology System, Becton, Dickinson & CO (2002) Summary page 3.

## Cited in the summary but kept off the family tree
- P050510: VITEK® System. Not in FDA’s 510(k), De Novo or PMA lists as we hold them (a misreading, a typo, or a number FDA does not list), so it is kept off the family tree

## Recalls of this device
- Mar 23, 2007 · Not classified · Z-0181-2008: Tracking Accuracy - Image intensifier supplier's change on the C-Arm could lead to patient injury, due to incorrect anatomical location of the instrument during a procedure.

## Indications for use
The BD Phoenix™ Automated Microbiology System is intended for in vitro quantitative determination of antimicrobial susceptibility by minimal inhibitory concentration (MIC) of most Gram-negative aerobic and facultative anaerobic bacteria isolates from pure culture for Enterobacteriaceae and Non-Enterobacteriaceae and most Gram-positive bacteria isolates from pure culture belonging to the genera Staphylococcus and Enterococcus. This premarket notification is for the addition of the antimicrobial agent cephalothin at concentrations of 0.5-64 µg/mL to Gram Positive ID/AST or AST only Phoenix panels. Cephalothin has been shown to be active in vitro against most strains of microorganisms listed below, as described in the FDA-approved package insert for this antimicrobial agent. Active In Vitro and in Clinical Infections Against: Staphylococcus species Active In Vitro Against:

Source page: https://510kreport.com/device/K050400
Methodology: https://510kreport.com/methodology