Vascular occlusion device

A vascular occlusion assembly for occluding a body cavity defined by cavity walls, the assembly comprising:

• a delivery apparatus including an outer sheath having a proximal end extending to a distal end and defining a lumen therein, an inner catheter being disposed within the lumen and having a proximal segment extending to a distal segment, the outer sheath being configured to translate axially relative to the inner catheter;
• an occlusion device disposed within the lumen including an elongate flexible member having a proximal portion extending to a distal portion and an extracellular matrix disposed therebetween, the proximal portion being releasably coupled to the distal segment of the inner catheter, the extracellular matrix being radially compressible for passage through the lumen and configured to promote body tissue growth when disposed within the body cavity;
• and
• the occlusion device being coaxially arranged within the lumen of the outer sheath such that the extracellular matrix is compressed within the lumen, the occlusion device being deployable through the distal end of the outer sheath by means of relative axial movement of the outer sheath, the extracellular matrix being expanded after deployment of the occlusion device.

A method of occluding a body cavity having body walls, the method comprising:

• providing an occlusion device comprising an elongate flexible member including a proximal portion extending to a distal portion, a radially compressible extracellular matrix being disposed between the proximal and distal portions, the extracellular matrix including small intestine submucosa and being configured to promote body tissue growth within the body cavity for occluding the body cavity;
• expanding the extracellular matrix within the body cavity;
• positioning the extracellular matrix to promote body tissue growth;
• and
• attaching the occlusion device to the body walls of the body cavity.