Embolus blood clot filter and delivery system
First Claim
1. A filter delivery system including a vena cava filter having a plurality of anchor members terminating in a hook, each anchor member having an anchor portion adjacent to the hook, the delivery system comprising a pusher assembly including a spline member having a plurality of grooves longitudinally extending a length of the spline member, each groove defining a plurality of different widths, wherein a minimum width of each groove is less than a maximum width of the anchor portion adjacent to the hook, each anchor portion having a body positioned in one of the plurality of grooves, and each hook having an end positioned outside of the groove.
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Accused Products
Abstract
A blood filter delivery system for delivering a filter into a vein includes an introducer and a push rod with a spline member disposed along the push rod. The spline member has a main body, and first and second boss portions spaced apart along the longitudinal axis to provide a gap for retaining anchor member of the filter during delivery via the introducer.
627 Citations
11 Claims
- 1. A filter delivery system including a vena cava filter having a plurality of anchor members terminating in a hook, each anchor member having an anchor portion adjacent to the hook, the delivery system comprising a pusher assembly including a spline member having a plurality of grooves longitudinally extending a length of the spline member, each groove defining a plurality of different widths, wherein a minimum width of each groove is less than a maximum width of the anchor portion adjacent to the hook, each anchor portion having a body positioned in one of the plurality of grooves, and each hook having an end positioned outside of the groove.
Specification