An embolectomy device , comprising: a clot engaging structure comprising a plurality of interconnected struts forming an open cell structure extending around a longitudinal axis of the device and having an inner lumen , wherein the clot engaging structure is biased to expand, or is otherwise expandable from, a radially constrained configuration to a radially expanded configuration when released from a delivery catheter into a blood vessel ; and characterized in that the embolectomy device further comprises a support structure positioned within the inner lumen of the clot engaging structure, the support structure comprising a plurality of connectors connected to respective struts of the clot engaging structure, the plurality of connectors spaced apart longitudinally along the longitudinal axis of the device , wherein the connectors are biased to move from a radially constrained configuration to a radially expanded configuration to thereby cause or otherwise assist and/or facilitate expansion of the clot engaging structure and/or establishing and maintaining an open cell structure thereof comprising a plurality of diagonally disposed cell structures when the clot engaging structure is released from the a delivery catheter into the a blood vessel , wherein each connector of the plurality of connectors has a first end connected to a respective first strut of the clot engaging structure and a second end connected to a respective second strut of the clot engaging structure without being connected to a central support member, and wherein one or more of the connectors form an angle at their respective midpoint. a clot engaging structure comprising a plurality of interconnected struts forming an open cell structure extending around a longitudinal axis of the device and having an inner lumen , wherein the clot engaging structure is biased to expand, or is otherwise expandable from, a radially constrained configuration to a radially expanded configuration when released from a delivery catheter into a blood vessel ; and characterized in that the embolectomy device further comprises a support structure positioned within the inner lumen of the clot engaging structure, the support structure comprising a plurality of connectors connected to respective struts of the clot engaging structure, the plurality of connectors spaced apart longitudinally along the longitudinal axis of the device , wherein the connectors are biased to move from a radially constrained configuration to a radially expanded configuration to thereby cause or otherwise assist and/or facilitate expansion of the clot engaging structure and/or establishing and maintaining an open cell structure thereof comprising a plurality of diagonally disposed cell structures when the clot engaging structure is released from the a delivery catheter into the a blood vessel , wherein each connector of the plurality of connectors has a first end connected to a respective first strut of the clot engaging structure and a second end connected to a respective second strut of the clot engaging structure without being connected to a central support member, and wherein one or more of the connectors form an angle at their respective midpoint. <EOS>