510(k) · Cleared
ClearedRadionics Contour Flex Valve, Radionics Contour Flex Plus Valve
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Radionics, Inc. · JXG Shunt, Central Nervous System And Components
Cleared on Jul 24, 1997 after an 87-day review. The FDA summary names its predicate without a number. 1 later device descends from it.
- Decided
- Jul 24, 1997
- Review
- 87 days
- Class
- Class II
- Product code
- JXG
- Recalls
- None
- Predicates
- 0
1 later device descends from it, 1 citing it directly.
- This deviceK971511 Radionics Contour Flex Valve, Radionics Contour Flex Plus ValveRadionics, Inc. · 1997
- Descendant · cites it directly · 0 of its ownK042558 Equi-Flow Valve and Shunt SystemIntegra Neurosciences Implants S.A. · 2004
Most influential descendants
Showing 1 of 1 · See all- K042558Equi-Flow Valve and Shunt SystemIntegra Neurosciences Implants S.A. · 2004 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K971511 | Radionics Contour Flex Valve, Radionics Contour Flex Plus Valve | Radionics, Inc. | 1997 | — |
| +1 | K042558 | Equi-Flow Valve and Shunt System | Integra Neurosciences Implants S.A. | 2004 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2004 | 1 | 0 |
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 JXG? 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 JXG device
- #1 K243531 Codman Libertís Shunt Catheter with Bactiseal…score 11.9 · 8 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the 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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | — | Radionics Contour Flex Valve and Contour Flex Plus Valve Named without a submission number |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K042558 | Equi-Flow Valve and Shunt System | 2004 | 0 |
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?
- Of its descendants, K042558 (Integra Neurosciences Implants S.A., 2004) has gone furthest, with 0 descendants of its own.
How does its category compare?
All JXG devicesJXG Shunt, Central Nervous System And Components: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · JXG
8in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · JXG
255in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · JXG
3in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · JXG
1,198in 2025
MAUDE reports naming product code JXG, 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 | 3 | 184 | 0 | 649 |
| 2008 | 6 | 60 | 1 | 630 |
| 2009 | 5 | 106 | 30 | 629 |
| 2010 | 3 | 30 | 0 | 812 |
| 2011 | 7 | 136 | 5 | 787 |
| 2012 | 3 | 78 | 1 | 977 |
| 2013 | 3 | 108 | 14 | 1,004 |
| 2014 | 0 | — | 6 | 1,251 |
| 2015 | 6 | 276 | 0 | 984 |
| 2016 | 6 | 143 | 0 | 1,091 |
| 2017 | 7 | 90 | 1 | 1,335 |
| 2018 | 6 | 102 | 0 | 1,484 |
| 2019 | 4 | 101 | 0 | 1,295 |
| 2020 | 2 | — | 8 | 1,206 |
| 2021 | 1 | — | 0 | 1,467 |
| 2022 | 4 | 101 | 0 | 1,329 |
| 2023 | 5 | 134 | 2 | 1,221 |
| 2024 | 3 | 90 | 3 | 1,214 |
| 2025 | 8 | 255 | 0 | 1,198 |
| 2026 | 2 | — | 1 | — |
What is it indicated for?
The Contour Flex and Contour Flex Plus Valves are indicated for the treatment of hydrocephalus. They are devices designed to shunt cerebrospinal fluid from the ventricles of the brain to an appropriate drainage site, such as the atrium of the heart or the peritoneal cavity. The Contour Flex Plus Valve is indicated for patients where excessive reduction of intraventricular pressure or volume may be caused by the siphoning effect of hydrostatic pressure in the distal catheter of the shunt system.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K971511 · printed Nov 6, 2026
Cite this page
510(k) Report. “K971511: Radionics Contour Flex Valve, Radionics Contour Flex Plus Valve.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K971511
Report an extraction error
Are you the manufacturer?
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