A CLOT RETRIEVAL DEVICE FOR REMOVING OCCLUSIVE CLOT FROM A BLOOD VESSEL

摘要

A clot retrieval device (1) for removing occlusive clot from a blood vessel, the device comprises an inner elongate body (3) having a collapsed delivery configuration and an expanded deployed configuration and an outer elongate body (2) at least partially overlying the inner elongate body (2).The outer elongate body (2) is expandable to a radial extent which is greater than the radial extent of the inner body (3) in the deployed configuration to define a clot reception space (11). The outer elongate body (2) comprises a distal end portion (24, 49) and the inner elongate body 3 comprises a main body portion (10) and a distal portion which extends in the deployed configuration towards the outer elongate body (2) to a greater extent than the main body portion. The distal portion (10) of the inner elongate member 3 and the distal end portion (24,49) of the outer elongate body (2) together define a three dimensional protective structure to substantially prevent distal egress of clot or clot fragments from the device.