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510(k) Data Aggregation

K Number

Device Name

VITEK 2 AST-Gram Negative Fosfomycin (<=4 - >=256 µg/mL), VITEK 2 AST-GN Fosfomycin (<=4 - >=256 µg/mL), VITEK 2 AST-GN Fosfomycin

Manufacturer

bioMerieux SA, Inc.

Date Cleared

2023-03-09

(210 days)

Product Code

LON, LTT, LTW

Regulation Number

866.1645

Intended Use

VITEK® 2 AST-Gram Negative Fosfomycin is designed for antimicrobial susceptibility testing of Gram negative bacilli and is intended for use with the VITEK® 2 Compact Systems as a laboratory aid in the determination of in vitro susceptibility to antimicrobial agents. VITEK® 2 AST-Gram Negative Fosfomyoin is a quantitative test. Fosfomycin has been shown to be active against most strains of the microorganisms listed below, according to the FDA label for this antimicrobial. Active in vitro and in clinical infections: Escherichia coli The VITEK® 2 Gram-Negative Susceptibility Card is intended for use with the VITEK® 2 Systems in clinical laboratories as an in vitro test to determine the susceptibility of clinically sigmificant aerobic Gram-negative bacilli to antimicrobial agents when used as instructed.

Device Description

The principle of the VITEK® 2 AST cards is based on the microdilution minimum inhibitory concentration (MIC) technique reported by MacLowry and Marsh(1) and Gerlach(0). The VITEK® 2 AST card is essentially a miniaturized, abbreviated and automated version of the doubling dilution technique(3). Each VITEK® 2 AST card contains 64 wells. A control well which only contains microbiological culture media is resident on all cards. The remaining wells contain premeasured portions of a specific antibiotic combined with culture media. The bacterial or yeast isolate to be tested is diluted to a standardized concentration with 0.45 - 0.5% saline before being used to rehydrate the antimicrobial medium within the card. The VITEK® 2 System automatically fills, seals and places the card into the incubator/reader. The VITEK® 2 Compact has a manual filling, sealing and loading operation. The VITEK® 2 Systems monitor the growth of each well in the card over a defined period of time. At the completion of the incubation cycle, a report is generated that contains the MIC value along with the interpretive category result for each antibiotic contained on the card. VITEK® 2 AST-GN Fosfomycin (≤4 - ≥256 ug/mL) has the following concentrations in the card: 2, 8, 16 and 64 ug/mL (equivalent standard method concentration by efficacy in ug/mL).

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