#$%^&*AU2015207971A120160225.pdf#####ELECTROLYTIC DETACHMENT ELEMENTS FOR IMPLANT DELIVERY SYSTEMS ABSTRACT Detachment of a medical device from a delivery assembly can focus activity of electrolytic detachment to enhance detachment procedures. Electrolytic activity can be focused by insulating nearby areas of a core wire and pre-treating a detachment zone to reduce crystallinity of the detachment zone. Such a delivery system (10), can include an electrolytically corrodible core wire (29) comprising a proximal portion (31), a distal portion (33), and a detachment zone (30) between the proximal portion (31) and the distal portion (33) a proximal insulating layer (34) annularly contacting the proximal portion (31) a coil (36) helically winding about and contacting at least a portion of the proximal insulating layer (34) a tube (76) annularly contacting at least a portion of the helical coil (36) a distal insulating layer (32) annularly contacting the distal portion (33) and a hub (50) of an implant annularly contacting at least a portion of the distal insulating layer (32) wherein a distal end of the proximal insulating layer (34) and a proximal end of the distal insulating layer (32) are axially spaced apart to expose the detachment zone (30).
