Cleared Traditional

Embosphere Microspheres (K250971) - FDA 510(k) Clearance

Class II Cardiovascular device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

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Optimized for regulatory review, auditing and printing
May 2025
Decision
46d
Days
Class 2
Risk

K250971 is an FDA 510(k) clearance for the Embosphere Microspheres. Classified as Device, Vascular, For Promoting Embolization (product code KRD), Class II - Special Controls.

Submitted by Biosphere Medical, S.A. (Roissy-En-France, FR). The FDA issued a Cleared decision on May 16, 2025 after a review of 46 days - a notably fast clearance cycle.

This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.3300 - the FDA cardiovascular device oversight framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Biosphere Medical, S.A. devices

Submission Details

510(k) Number K250971 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 31, 2025
Decision Date May 16, 2025
Days to Decision 46 days
Submission Type Traditional
Review Panel Cardiovascular (CV)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
79d faster than avg
Panel avg: 125d · This submission: 46d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code KRD Device, Vascular, For Promoting Embolization
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.3300
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Cardiovascular devices follow this clearance model.

Regulatory Peers - KRD Device, Vascular, For Promoting Embolization

All 70
Devices cleared under the same product code (KRD) and FDA review panel - the closest regulatory comparables to K250971.
Polyvinyl Alcohol Embolic Microspheres
K250209 · Canyon Medical, Inc. · Sep 2025
HARBOR Occlusion Device
K250133 · Nuvascular, Inc. · Jul 2025
Prestige Coil System (Prestige Packing Line Extension)
K251383 · Balt USA, LLC · May 2025
Nitinol Enhanced Device (NED)
K250276 · Embolization, Inc. · May 2025
Ruby XL System
K250079 · Penumbra, Inc. · Mar 2025
Embozene Color-Advanced Microspheres
K242608 · Varian Medical Systems, Inc. · Jan 2025