510(k) Report

510(k) · Cleared

Cleared

ASTar BC G- Kit and ASTar Instrument

K221688510(k) TraditionalCleared Apr 26, 2024686-day reviewClass II21 CFR 866.1650

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Q-Linea AB · SAN Automated Antimicrobial Susceptibility Test System For Positive Blood Culture Samples

Cleared on Apr 26, 2024 as substantially equivalent to DEN160032 (Accelerate Diagnotics, 2017) after a 686-day review. Its family tree reaches back 1 generation to 2017. 1 later device descends from it.

Decided
Apr 26, 2024
Review
686 days
Class
Class II
Product code
SAN
Recalls
None
Predicates
1

Its longest line of descent runs back 1 generation to DEN160032 (2017). 1 later device descends from it, 1 citing it directly.

Descendants, by year cleared 2026: 1 descendant clearedDEN160032 · Accelerate Pheno system, Accelerate Phenotest BC Kit · Accelerate Diagnotics · 2017201620182020202220242026
Descendants, by generation 1 generation forward: 1 descendant DEN160032 · Accelerate Pheno system, Accelerate Phenotest BC Kit · Accelerate Diagnotics · 20170
  1. Root · 1 generation backDEN160032 Accelerate Pheno system, Accelerate Phenotest BC KitAccelerate Diagnotics · 2017
  2. This deviceK221688 ASTar BC G- Kit and ASTar InstrumentQ-Linea AB · 2024
  3. Descendant · cites it directly · 0 of its ownK253573 ASTar BC G- KitQ-Linea AB · 2026

Most influential descendants

Showing 1 of 1 · See all
  • K253573ASTar BC G- KitQ-Linea AB · 2026 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1DEN160032Accelerate Pheno system, Accelerate Phenotest BC KitAccelerate Diagnotics2017—
0 (this device)K221688ASTar BC G- Kit and ASTar InstrumentQ-Linea AB2024—
+1K253573ASTar BC G- KitQ-Linea AB2026—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202610
FIG. 1 — Lineage of K221688, 2017–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in SAN? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new SAN device

  1. #1 K211815 LifeScale Gram Negative Kit (LSGN) with the…score 13.4 · 2 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*DEN160032Accelerate Pheno system, Accelerate Phenotest BC Kit
Summary page 5
…robial susceptibility testing Regulatory Class: Class II Product Code: SAN, LON Predicate Device: Accelerate PhenoTest BC Kit. DEN160032 8.2 Device Description ASTar System is a fully automated system for antimicrobial susceptibility testing (AST). It c…
Accelerate Diagnotics2017—

Also cleared against DEN160032: 3 other devices →

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K253573ASTar BC G- KitQ-Linea AB20260

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • Its one ancestor has no recall.
  • Of its descendants, K253573 (Q-Linea AB, 2026) has gone furthest, with 0 descendants of its own.
  • 3 other devices also cite its predicate DEN160032.

How does its category compare?

All SAN devices

SAN Automated Antimicrobial Susceptibility Test System For Positive Blood Culture Samples: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.

FDA decisions per year · SAN

1in 2025

2024: 42025: 12026 (partial year): 3
2007high 4 (2024) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · SAN

577in 2024

2024: 577 days median2026 (partial year): 169 days median
2007high 577 (2024)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · SAN

No recall names SAN since 2007.

Adverse event reports per year · SAN

No MAUDE report names SAN since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20190—00
20200—00
20210—00
20220—00
20230—00
2024457700
20251—00
202631690—

What is it indicated for?

Intended Use: The ASTar System is intended to be used for the automated quantitative susceptibility testing for most clinically significant microorganisms. The ASTar System does not provide organism identification. Indications for Use: The ASTar System, comprised of the ASTar Instrument with the ASTar BC G− Kit (ASTar BC G− Consumable kit, ASTar BC G− Frozen insert, and ASTar BC G− Kit software), utilizes high-speed, time-lapse microscopy imaging of…

Read the full statement (492 words)

Intended Use:

The ASTar System is intended to be used for the automated quantitative susceptibility testing for most clinically significant microorganisms. The ASTar System does not provide organism identification.

Indications for Use:

The ASTar System, comprised of the ASTar Instrument with the ASTar BC G− Kit (ASTar BC G− Consumable kit, ASTar BC G− Frozen insert, and ASTar BC G− Kit software), utilizes high-speed, time-lapse microscopy imaging of bacteria for the in vitro, quantitative determination of antimicrobial susceptibility of on-panel gram-negative bacteria. The test is performed directly on positive blood culture samples signaled as positive by a continuous monitoring blood culture system and confirmed to contain gram-negative bacilli by Gram stain. Organism identification is required for AST result interpretation and reporting.

Test results from the ASTar BC G− Kit should be interpreted in conjunction with other clinical and laboratory findings. Standard laboratory protocols for processing positive blood cultures should be followed to ensure availability of isolates for supplemental testing. Sub-culturing is necessary to support further testing for: bacteria and antimicrobials not on the ASTar BC G− panel, where inconclusive results are obtained, epidemiologic testing, recovery of organisms present in microbial samples, and susceptibility testing of bacteria in polymicrobial samples.

The ASTar BC G− Kit tests the following antimicrobial agents with the following bacterial species:

Amikacin: Citrobacter freundii, Enterobacter cloacae complex, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa, Serratia marcescens

Ampicillin: Escherichia coli, Proteus mirabilis

Ampicillin-sulbactam: Escherichia coli, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris

Aztreonam: Citrobacter koseri, Enterobacter cloacae complex, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris, Serratia marcescens

Cefazolin: Klebsiella pneumoniae

Cefepime: Citrobacter freundii, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris, Pseudomonas aeruginosa, Serratia marcescens

Ceftazidime: Enterobacter cloacae complex, Escherichia coli, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris, Serratia marcescens

Ceftazidime-avibactam: Citrobacter freundii, Citrobacter koseri, Enterobacter cloacae complex, Klebsiella oxytoca, Proteus mirabilis, Pseudomonas aeruginosa, Serratia marcescens

Cefuroxime: Escherichia coli, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis

Ciprofloxacin: Citrobacter koseri, Enterobacter cloacae complex, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris, Pseudomonas aeruginosa, Serratia marcescens

Gentamicin: Citrobacter freundii, Citrobacter koseri, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris, Pseudomonas aeruginosa, Serratia marcescens

Levofloxacin: Citrobacter freundii, Citrobacter koseri, Enterobacter cloacae complex, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris, Pseudomonas aeruginosa, Serratia marcescens

Meropenem: Acinetobacter baumannii, Citrobacter freundii, Citrobacter koseri, Escherichia coli, Proteus mirabilis, Proteus vulgaris, Pseudomonas aeruginosa, Serratia marcescens

Meropenem-vaborbactam: Citrobacter freundii, Citrobacter koseri, Enterobacter cloacae complex, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Serratia marcescens

Piperacillin-tazobactam: Citrobacter koseri, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Proteus vulgaris, Serratia marcescens

Tigecycline: Citrobacter freundii, Citrobacter koseri, Enterobacter cloacae complex, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae, Serratia marcescens

Tobramycin: Citrobacter freundii, Citrobacter koseri, Enterobacter cloacae complex, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Serratia marcescens

Trimethoprim-sulfamethoxazole: Enterobacter cloacae complex, Escherichia coli, Klebsiella aerogenes, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus vulgaris

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K221688: ASTar BC G- Kit and ASTar Instrument.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K221688

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026