IVC filter with translating hooks

A filter hook system comprising:

• first and second struts connected by a connecting portion;
• first and second elongate members connected to each other at first ends to form a tip and connected at second ends to the first and second struts;
• and
• wherein the first and second struts define a variable included angle with a vertex on the connecting portion wherein smaller angles yield the tip situated in a plane of the struts and angle variation to larger included angles yields the tip protruding from the plane.

A filter hook system comprising a biased assembly comprising:

• first and second struts connected by a connecting portion;
• first and second elongate members connected to each other at first ends to form a tip and connected at second ends to the first and second struts;
• wherein
• the first and second struts define a variable included angle with a vertex on the connecting portion wherein smaller angles yield the tip situated in a plane of the struts, the plane having a first side and an opposite side, and angle variation to larger included angles yields the tip protruding from the plane,
• in a first position the tip protrudes from the plane's first side
• in a second position the tip protrudes from the plane's opposite side,
• the first and second struts have been adapted to connect to a hub comprising a retrieval member and spacer wires,
• and
• the system has been adapted for a retrievable vascular filter.