Patent ID: 9486305
Filing Date: 2016-11-08
CPC Classification: A61F

Claim Text:
1. A filter comprising: a first crown and a second crown each comprising: a body including a plurality of strut members disposed about a central axis to define an outer perimeter, each of the strut members including a first strut and a second strut, the body having a first outer perimeter in a first configuration and a second outer perimeter larger than the first outer perimeter in a second configuration; and a hook disposed between the first and second struts of at least one of the strut members, the hook having a first elongate member connected to a second elongate member to define a tip, the first elongate member having an end portion coupled to the first strut and the second elongate member having an end portion coupled to the second strut so that wherein the first crown connects to the second crown.