A device (50, 150) arranged to be delivered inside a delivery catheter to remove at least a portion of an occlusion from a small blood vessel exhibiting an occlusion, the small blood vessel having a luminal wall with a lumen diameter of less than 5 mm adjacent the occlusion, the device comprising: a tubular body (20, 120, 220, 320, 420) having a proximal end and a distal end with a length therebetween, wherein the tubular body is configured to be constrained in a first small diameter state by the delivery catheter for manipulation to, and through, the occlusion of the small blood vessel so that the device is disposed across the occlusion, wherein the device is configured to self-expand when deployed from the first small diameter state to a second large diameter state; the tubular body, when unstressed, having a maximum resting state diameter of no more than 50% of the diameter of the body lumen; a first member (26A, 126A) coupled with the proximal end of the tubular body; and a second member (26, 126) extendable through the delivery catheter and coupled with the distal end of the tubular body; wherein relative movement of the first and second member compresses the tubular body to increase its diameter or stretches said tubular body to decrease its diameter; characterized in that: said first member and said second member are formed as local elongated protrusions of said tubular body; said first member and said second member extendable through the delivery catheter, running through the catheter and out of a proximal end thereof; wherein said relative movement of the first and second member reduces and enlarges an open cross-sectional area of the tubular body after self expansion thereof; said deployed device, while expanded in said occlusion to prevent relative movement therebetween, exerting a radial force which is small enough so as not to traumatize inner walls of a lumen of said small blood vessel, said device configured to withdraw at least a portion of said occlusion along with said tubular body when said tubular body is withdrawn from said blood vessel by pulling and pushing said second and said first members, respectively; and wherein said device is constituted of self expanding braided filaments. a tubular body (20, 120, 220, 320, 420) having a proximal end and a distal end with a length therebetween, wherein the tubular body is configured to be constrained in a first small diameter state by the delivery catheter for manipulation to, and through, the occlusion of the small blood vessel so that the device is disposed across the occlusion, wherein the device is configured to self-expand when deployed from the first small diameter state to a second large diameter state; the tubular body, when unstressed, having a maximum resting state diameter of no more than 50% of the diameter of the body lumen; a first member (26A, 126A) coupled with the proximal end of the tubular body; and a second member (26, 126) extendable through the delivery catheter and coupled with the distal end of the tubular body; wherein relative movement of the first and second member compresses the tubular body to increase its diameter or stretches said tubular body to decrease its diameter; said first member and said second member are formed as local elongated protrusions of said tubular body; said first member and said second member extendable through the delivery catheter, running through the catheter and out of a proximal end thereof; wherein said relative movement of the first and second member reduces and enlarges an open cross-sectional area of the tubular body after self expansion thereof; said deployed device, while expanded in said occlusion to prevent relative movement therebetween, exerting a radial force which is small enough so as not to traumatize inner walls of a lumen of said small blood vessel, said device configured to withdraw at least a portion of said occlusion along with said tubular body when said tubular body is withdrawn from said blood vessel by pulling and pushing said second and said first members, respectively; and wherein said device is constituted of self expanding braided filaments.