HepaSphere Microspheres enable targeted occlusion for effective embolization in four important ways:

Targeted
Retains spherical shape with consistent cross sectional diameter after reconstitution with aqueous-based solutions such as contrast media and 0.9% saline solution for predictable flow directed level of occlusion in the vasculature.

Absorbing
Rapidly absorbs contrast media and 0.9% saline solution. In addition to the absorption process, the negatively charged polymer is also capable of selective bonding with positively charged material through an ionic interaction process. These technology attributes provide a unique and versatile embolization platform.

Conforming
Affords atraumatic conformability to the architecture of the vessel lumen, providing more contact surface area with the embolic material and the vessel intima, lending to a more complete occlusion of the vessel. In vivo studies demonstrate the ability for one sphere to occlude bifurcated vessel branches.

Expanding
Expansion up to four times the stated dry diameter with secondary conformability to the vessel architecture, resulting in an increase in surface area contact for a more complete vessel occlusion.