72 results about "Embolization Agent" patented technology

A method of transarterial embolization agent delivery at a low pressure is provided. The method comprises advancing a delivery device with an occlusion structure in a retracted non-occlusive configuration through a supply artery to a vascular position in the supply artery that is in the vicinity of a target anatomical structure, the target structure having terminal capillary beds, expanding the occlusion structure from the retracted non-occlusive configuration to an expanded occlusive configuration, lowering a mean arterial pressure in a vascular space distal to the expanded occlusion structure, redirecting fluid flow from the collateral vessels toward the lowered pressure vascular space and into the target anatomical structure, injecting an embolization agent through the delivery device and into the lowered pressure vascular space, and delivering the embolization agent from the lowered pressure vascular space into the target anatomical structure. Other catheter assemblies and methods of use are also disclosed.

The invention discloses a sodium alginate targeted sustained release microsphere vascular occlusive agent containing Sorafenib as well as a preparation and application thereof. The invention is characterized by comprising carrier sodium alginate and antitumor targeted drug Sorafenib; the sodium alginate wraps the Sorafenib; the Sorafenib is 1 portion by weight and the sodium alginate is 1 to 30 portions by weight. The vascular occlusive agent leads the oral targeted drug to achieve the purpose of interventional embolotherapy by an interventional embolotherapy method for changing preparation formulation and changing the drug administration way, simultaneously leads Sorafenib of the antitumor drug to be directly located to cancer tissues in a fast and long-acting manner from local target areas, has strong pointedness and obvious effect, does not damage normal tissues while cutting blood supply of tumor and inhibiting growth of the tumor cells, has high drug concentration in local target areas and little drug amount for the whole body, better and effectively protects the self immune system of patients and reduces toxic and side effects and the like.