510(k) · Cleared
ClearedMTS Penicillin 0.002- 32 µg/mL
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Liofilchem s.r.l. · JWY Manual Antimicrobial Susceptibility Test Systems
Cleared on Sep 13, 2018 after a 62-day review. FDA’s file for it is a 510(k) statement, which names no predicate.
- Decided
- Sep 13, 2018
- Review
- 62 days
- Class
- Class II
- Product code
- JWY
- Recalls
- None
- Predicates
- 0
FDA’s file for it is a 510(k) statement, which names no predicate.
Sources: FDA 510(k) database (decision fields), the FDA 510(k) statement (indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in JWY? 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 JWY device
- #1 K260447 ETEST Gepotidacin (GEP) (0.016-256 µg/mL)score 12.7 · 6 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA’s file for it is a 510(k) statement, which names no predicate.
What descends from it?
No later submission names this one as a predicate yet.
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.
How does its category compare?
All JWY devicesJWY Manual Antimicrobial Susceptibility Test Systems: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.
FDA decisions per year · JWY
14in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · JWY
106in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · JWY
31in 2022
Class I (13 since 2007) Class II/III not classified
Adverse event reports per year · JWY
1in 2024
MAUDE reports naming product code JWY, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 0 |
| 2008 | 6 | 85 | 1 | 1 |
| 2009 | 2 | — | 0 | 1 |
| 2010 | 4 | 73 | 0 | 0 |
| 2011 | 4 | 125 | 3 | 0 |
| 2012 | 1 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 6 | 106 | 5 | 4 |
| 2015 | 9 | 90 | 6 (4) | 11 |
| 2016 | 4 | 88 | 0 | 20 |
| 2017 | 14 | 61 | 2 | 9 |
| 2018 | 12 | 51 | 0 | 13 |
| 2019 | 18 | 60 | 0 | 10 |
| 2020 | 5 | 66 | 0 | 20 |
| 2021 | 5 | 266 | 0 | 41 |
| 2022 | 0 | — | 31 (9) | 11 |
| 2023 | 7 | 85 | 0 | 9 |
| 2024 | 6 | 90 | 0 | 1 |
| 2025 | 14 | 106 | 0 | 0 |
| 2026 | 2 | — | 0 | — |
What is it indicated for?
The Liofilchem® MTS™ (MIC Test Strip) Penicillin 0.002-32 pg/mL is a quantitative method intended for the in vitro determination of antimicrobial susceptibility of bacteria. MTS™ consists of specialized paper impregnated with a pre-defined concentration gradient of an antimicrobial agent, which is used to determine the minimum inhibitory concentration (MIC) in pg/mL of antimicrobial agents against bacteria as tested on agar media using overnight…
Read the full statement (158 words)
The Liofilchem® MTS™ (MIC Test Strip) Penicillin 0.002-32 pg/mL is a quantitative method intended for the in vitro determination of antimicrobial susceptibility of bacteria. MTS™ consists of specialized paper impregnated with a pre-defined concentration gradient of an antimicrobial agent, which is used to determine the minimum inhibitory concentration (MIC) in pg/mL of antimicrobial agents against bacteria as tested on agar media using overnight incubation and manual reading procedures.
The MTS™ Penicillin at concentrations of 0.002 - 32 ug/mL should be interpreted at 20-24 hours of incubation for Streptococcus spp.
MTS™ Penicillin can be used to determine the MIC of penicillin against the following bacteria. Penicillin has been shown to be active both clinically and in vitro against these bacterial species according to the FDA drug approved label:
Streptococcus pneumoniae
Streptococcus pyogenes (Group A )
Streptococcus dysgalactiae (Groups C & G)
Streptococcus anginosus (Groups C & G)
Streptococcus constellatus (Groups C & G)
Streptococcus intermedius (Groups C & G)
Indications for use read by OCR from a scanned FDA 510(k) statement, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K181889 · printed Nov 4, 2026
Cite this page
510(k) Report. “K181889: MTS Penicillin 0.002- 32 µg/mL.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K181889
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Page last updated Nov 3, 2026