Patent ID: 8591541

Claim:
A vessel filter comprising a tubular region and a plurality of elongated filter struts extending initially linearly distally from the tubular region and then angling radially outwardly from a longitudinal axis of the filter to diverge, the plurality of elongated filter struts including at least first, second and third elongated filter struts, the first elongated filter strut separating into diverging first and second connecting struts which extend therefrom in different directions, the second elongated filter strut separating into diverging third and fourth connecting struts extending therefrom in different directions, the first and third connecting struts converging at a first joining region to form a first four sided closed geometric shape and the second connecting strut converging at a second joining region with a fifth connecting strut diverging from the third elongated filter strut to form a second four sided closed geometric shape, the first and second geometric shapes formed in a filter region of the filter, a transverse dimension at the joining regions of the connecting struts being greater than a transverse dimension at the tubular region, and an elongated mounting strut extending from each of the joining regions and being unconnected along their length.