Removable vena cava filter comprising struts having axial bends

A removable filter for capturing thrombi in a blood vessel, the filter comprising:

• a plurality of primary struts having first ends attached together along a longitudinal axis, each primary strut having an arcuate segment having an axial bend relative to the longitudinal axis such that the primary struts are arranged in consistent orientation between open and closed states, the axial bends of the primary struts being angled consistently relative to the longitudinal axis, each of the arcuate segments extending from the first end and terminating at an anchoring hook, the primary struts being configured to move to the expanded state for engaging with the blood vessel and the collapsed state for filter retrieval or delivery.