METHOD AND APPARATUS FOR OCCLUSION RETRIEVAL

摘要

A device arranged to at least partially remove an occlusion occluding a small blood vessel, the device constituted of a generally tubular inner member and an outer member in communication with the generally tubular inner member. The generally tubular inner member is expandable to a large diameter state, which is no more than an at rest state and which is in one embodiment no more than 50% of the diameter of the small blood vessel at the occlusion location. The generally tubular outer member is expandable to a large diameter state which is greater than the at rest outer diameter state of the generally tubular inner member, and wherein in one embodiment the outer member meets the inner walls of the small blood vessel at the occlusion location. At least a portion of the occlusion is contained between the generally tubular inner member in the large diameter state and the outer member in the large diameter state.