×

Removable embolus blood clot filter and filter delivery unit

  • US 9,615,909 B2
  • Filed: 04/29/2016
  • Issued: 04/11/2017
  • Est. Priority Date: 09/25/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. A filter delivery system, comprising:

  • a blood filter including;

    a hub disposed along a longitudinal axis;

    at least one anchor projecting from the hub, the at least one anchor including a hook that penetrates a wall of the blood vessel, the hook being spaced along the longitudinal axis from the hub, and spaced a first radial distance from longitudinal axis; and

    at least one locator projecting from the hub having at least a portion proximate a tip that engages the wall of the blood vessel, the tip being spaced along the longitudinal axis from the hub, and spaced a second radial distance from the longitudinal axis, the second radial distance being less than the first radial distance; and

    a delivery unit including;

    a first end coupled to a pusher pad via an elongate pusher, the elongate pusher having first, second, and third sections of different cross-sections between the first end and the pusher pad; and

    a slotted spline disposed between any two of the first, second, and third sections, the slotted spline having at least one groove extending along the longitudinal axis, the slotted spline having a reduced cross-section proximate the elongate pusher, each of the at least one groove receiving a portion of each of the at least one anchor.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×