Merit Medical received FDA 510(k) clearance for the company’s 30-60um QuadraSphere Microspheres. The tiny embolic devices are used to deprive tumors of blood and oxygen by blocking vessels that lead to them.
The spheres are injected near the tumor and shortly thereafter they expand to up to 64 times their original dry state volume.
- Targeted: Flow directed due to spherical shape
- Absorbing: Rapidly absorbs aqueous based solutions like contrast media and 0.9% saline solution. The spheres are positively charged, which allows them to bond ionically with negatively charged aqueous based solutions.
- Conforming: Compresses in the vessel lumen, providing more surface contact with vessel intima.
- Expanding: Expands up to four times the stated dry diameter when hydrated with non-ionic aqueous solutions.