FDA product code · Radiology
Hydrogel Spacer
8 FDA decisions since 2015. 510(k) reviews decided 2021–2025 took a median of 208 days (half between 145 and 270). 2 recalls name this code, 0 of them Class I. The most-cited predicate is DEN140030, named by 3 later devices.
The perirectal spacer is intended to temporarily position the anterior rectal wall away from the prostate during radiotherapy for prostate cancer and in creating this space it is the intent of the perirectal spacer to reduce the radiation dose delivered to the anterior rectum. The perirectal spacer is composed of biodegradable material and maintains space for the entire course of prostate radiotherapy treatment and…
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly Download the data (CSV)
Twenty years of OVB at a glance: how often FDA decides these devices, how long 510(k) reviews take, how often they are recalled, and how many adverse event reports name the code.
FDA decisions per year · OVB
2so far in 2026, the most since 2007
2026 to Oct 25, outlined.
Median 510(k) review, days · OVB
Too few OVB 510(k)s in any year since 2007 to give a median.
Recalls per year · OVB
2in 2022
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · OVB
339in 2025
MAUDE reports naming product code OVB, 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 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 1 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 2 |
| 2017 | 0 | — | 0 | 3 |
| 2018 | 1 | — | 0 | 11 |
| 2019 | 1 | — | 0 | 85 |
| 2020 | 1 | — | 0 | 126 |
| 2021 | 0 | — | 0 | 272 |
| 2022 | 1 | — | 2 | 387 |
| 2023 | 1 | — | 0 | 327 |
| 2024 | 0 | — | 0 | 329 |
| 2025 | 0 | — | 0 | 339 |
| 2026 | 2 | — | 0 | — |
Planning a device in OVB? A 510(k) Report ranks candidate predicates in this code by lineage, citations and recall history, with the review-time outlook.
See the 510(k) Report