510(k) · Cleared
ClearedHydragel CSF Isofocusing Kits
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Morax · CFF Immunoelectrophoretic, Immunoglobulins, (G, A, M)
Cleared on Nov 4, 2003 after a 25-day review. The FDA summary names no predicate by number.
- Decided
- Nov 4, 2003
- Review
- 25 days
- Class
- Class II
- Product code
- CFF
- Recalls
- None
- Predicates
- 0
The FDA summary names no predicate by number.
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 CFF? 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 CFF device
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What was it cleared against?
The FDA summary names no predicate by number.
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 CFF devicesCFF Immunoelectrophoretic, Immunoglobulins, (G, A, M): FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · CFF
1in 2021
2026 to Oct 25, outlined.
Median 510(k) review, days · CFF
Too few CFF 510(k)s in any year since 2007 to give a median.
Recalls per year · CFF
1in 2022
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · CFF
1in 2021
MAUDE reports naming product code CFF, 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 | 0 | — | 0 | 0 |
| 2009 | 2 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 1 | — | 0 | 0 |
| 2012 | 2 | — | 0 | 1 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 1 | — | 0 | 0 |
| 2016 | 1 | — | 0 | 0 |
| 2017 | 0 | — | 1 | 0 |
| 2018 | 1 | — | 0 | 0 |
| 2019 | 2 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 1 | — | 0 | 1 |
| 2022 | 0 | — | 1 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The HYDRAGEL 3 CSF ISOFOCUSING and HYDRAGEL 9 CSF ISOFOCUSING kits are designed for the qualitative detection of oligoclonal bands in the electrophoretic patterns of cerebrospinal fluid (CSF) and confirmation of their immunoglobulin character.The use of anti-lgG antisera permits to prove or disprove the "true" IgG character of oligoclonal banding. Visual, comparative interpretation of immunofixation patterns of IgG in high resolution isoelectric…
Read the full statement (178 words)
The HYDRAGEL 3 CSF ISOFOCUSING and HYDRAGEL 9 CSF ISOFOCUSING kits are designed for the qualitative detection of oligoclonal bands in the electrophoretic patterns of cerebrospinal fluid (CSF) and confirmation of their immunoglobulin character.The use of anti-lgG antisera permits to prove or disprove the "true" IgG character of oligoclonal banding. Visual, comparative interpretation of immunofixation patterns of IgG in high resolution isoelectric separations of CSF and serum proteins from the same patient allows detection of oligoclonal banding that represents intrathecal synthesis of immunoglobulins.
The HYDRAGEL 3 CSF ISOFOCUSING and HYDRAGEL 9 CSF ISOFOCUSING kits are indicated when certain diseases of the central nervous system (CNS), such as multiple sclerosis, are suspected and the detection of oligoclonal banding and inflammatory processes (intrathecal synthesis of immunoglobulins) can aid to the diagnosis.
The use of enzyme labeled antibodies increases the sensitivity of detection so that the analysis can be generally performed on unconcentrated CSF.
The only difference between the 3 CSF and 6 CSF kits is in the intended number of samples per gel: 3 and 9 CSF/serum sample pairs, respectively.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K033277 · printed Nov 3, 2026
Cite this page
510(k) Report. “K033277: Hydragel CSF Isofocusing Kits.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K033277
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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