510(k) · Cleared
ClearedRadiopaque Spherical Emboli (Rse)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Interventional Therapeutics Corp. · HCG Device, Neurovascular Embolization
Cleared on May 22, 1987 after a 66-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 1 of the 56 devices in its family, counting itself, has a Class I recall. 55 later devices descend from it.
- Decided
- May 22, 1987
- Review
- 66 days
- Class
- Class II
- Product code
- HCG
- Recalls
- None
- Predicates
- 0
55 later devices descend from it, 4 citing it directly. 1 of the 56 devices in this family, counting this one, has a Class I recall.
- This deviceK871047 Radiopaque Spherical Emboli (Rse)Interventional Therapeutics Corp. · 1987
- Descendant · cites it directly · 52 of its ownK991549 Embosphere MicrospheresBiosphere Medical · 2000
- Descendant · 2 generations on · 41 of its ownK021397 Embosphere Microspheres and Embogold Microspheres for Use in Uterine…Biosphere Medical, Inc. · 2002
- Descendant · cites it directly · 18 of its ownK030966 Contour Emboli Pva and Fastracker-325 Infusion CatheterBoston Scientific Corp · 2003 · Recalled
- Descendant · 2 generations on · 11 of its ownK052742 Hepasphere MicrospheresBiosphere Medical, Inc. · 2006
- Descendant · 2 generations on · 10 of its ownK034068 Contour SE MicrospheresBoston Scientific Corp · 2004
Showing 5 of 55 descendants. See all descendants
Descendants cleared per year
Class I recalls in this family
- K213385 GEM5 generations on · 2022
Most influential descendants
Showing 5 of 55 · See all- K991549Embosphere MicrospheresBiosphere Medical · 2000 · cites it directly52descendants
- K021397Embosphere Microspheres and Embogold Microspheres for Use in Uterine Fibroid EmbolizationBiosphere Medical, Inc. · 2002 · 2 generations on41descendants
- K030966Contour Emboli Pva and Fastracker-325 Infusion CatheterBoston Scientific Corp · 2003 · cites it directly18descendants
- K052742Hepasphere MicrospheresBiosphere Medical, Inc. · 2006 · 2 generations on11descendants
- K034068Contour SE MicrospheresBoston Scientific Corp · 2004 · 2 generations on10descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K871047 | Radiopaque Spherical Emboli (Rse) | Interventional Therapeutics Corp. | 1987 | — |
| +1 | K991549 | Embosphere Microspheres | Biosphere Medical | 2000 | — |
| +2 | K021397 | Embosphere Microspheres and Embogold Microspheres for Use in Uterine Fibroid… | Biosphere Medical, Inc. | 2002 | — |
| +1 | K030966 | Contour Emboli Pva and Fastracker-325 Infusion Catheter | Boston Scientific Corp | 2003 | 1 |
| +2 | K052742 | Hepasphere Microspheres | Biosphere Medical, Inc. | 2006 | — |
| +2 | K034068 | Contour SE Microspheres | Boston Scientific Corp | 2004 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1998 | 2 | 0 |
| 2000 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2006 | 2 | 0 |
| 2008 | 3 | 0 |
| 2010 | 2 | 0 |
| 2012 | 2 | 0 |
| 2013 | 3 | 0 |
| 2014 | 4 | 0 |
| 2015 | 2 | 0 |
| 2016 | 2 | 0 |
| 2017 | 2 | 0 |
| 2018 | 6 | 0 |
| 2019 | 4 | 0 |
| 2021 | 1 | 0 |
| 2022 | 3 | 1 |
| 2023 | 1 | 0 |
| 2024 | 5 | 0 |
| 2025 | 4 | 0 |
| 2026 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
1 device in this family has a Class I recall. 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 HCG device
- #1 K252700 Optima Coil System (Optima Packing Coil System)score 20.6 · 26 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 has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (55)
See all 554 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (1 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K213385GEMObsidio, Inc. · 2022 · 5 generations on · ◆ in the 2022 descendants bar of FIG. 11 Class I recall
What does this lineage say?
- Of its descendants, K991549 (Biosphere Medical, 2000) has gone furthest, with 52 descendants of its own.
How does its category compare?
All HCG devicesHCG Device, Neurovascular Embolization: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · HCG
3in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · HCG
107in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · HCG
1in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · HCG
537in 2025
MAUDE reports naming product code HCG, 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 | 8 | 50 | 1 | 326 |
| 2008 | 9 | 71 | 3 | 730 |
| 2009 | 7 | 48 | 0 | 821 |
| 2010 | 8 | 72 | 2 | 851 |
| 2011 | 9 | 78 | 1 | 894 |
| 2012 | 7 | 30 | 0 | 1,146 |
| 2013 | 7 | 67 | 2 | 1,103 |
| 2014 | 5 | 66 | 4 | 1,729 |
| 2015 | 5 | 60 | 0 | 1,598 |
| 2016 | 7 | 37 | 0 | 1,991 |
| 2017 | 5 | 97 | 0 | 2,494 |
| 2018 | 4 | 173 | 0 | 2,058 |
| 2019 | 1 | — | 0 | 1,763 |
| 2020 | 2 | — | 0 | 1,754 |
| 2021 | 5 | 103 | 0 | 2,268 |
| 2022 | 3 | 114 | 2 | 663 |
| 2023 | 2 | — | 0 | 568 |
| 2024 | 4 | 49 | 1 | 552 |
| 2025 | 3 | 107 | 1 (1) | 537 |
| 2026 | 4 | 30 | 1 | — |
https://510kreport.com/device/K871047 · printed Nov 5, 2026
Cite this page
510(k) Report. “K871047: Radiopaque Spherical Emboli (Rse).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K871047
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026