LOCALIZING NEEDLE WITH FLUID DELIVERY
First Claim
Patent Images
1. A medical device for injecting fluid into a tissue at a selected location in the tissue, comprising:
- an infusion tube having distal and proximal ends and defining a lumen with an outlet proximate the distal end and through which fluid in the lumen can exit from the infusion tube;
a localizing wire fixedly mounted to the infusion tube and comprising an anchor; and
wherein the medical device is positioned to deliver fluid to the selected location within the tissue by inserting the distal end of the infusion tube into the tissue such that fluid released through the outlet will flow to the selected location and the anchor engages the tissue to fix the position of the infusion tube.
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Accused Products
Abstract
A localizing needle comprises a barbed localizing wire fixedly sheathed within a flexible hollow infusion tube for delivering fluids to surrounding tissue through a plurality of spaced infusion ports. Echogenic and/or radiopaque markers are provided at selected intervals along the infusion tube. A helical wire bead at a distal end of the tube anchors the wire to the tube.
287 Citations
59 Claims
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1. A medical device for injecting fluid into a tissue at a selected location in the tissue, comprising:
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an infusion tube having distal and proximal ends and defining a lumen with an outlet proximate the distal end and through which fluid in the lumen can exit from the infusion tube;
a localizing wire fixedly mounted to the infusion tube and comprising an anchor; and
wherein the medical device is positioned to deliver fluid to the selected location within the tissue by inserting the distal end of the infusion tube into the tissue such that fluid released through the outlet will flow to the selected location and the anchor engages the tissue to fix the position of the infusion tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A method of injecting a fluid into a tissue mass using a localizing needle comprising an infusion tube defining a lumen, a localizing wire fixedly mounted to the infusion tube, and at least one imaging marker located on the infusion tube or localizing wire, comprising the steps of:
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inserting the infusion tube and localizing wire into tissue mass;
locating the infusion tube at a predetermined location within the tissue mass by imaging the imaging marker;
anchoring the localizing wire at the predetermined location to fix the position of the infusion tube within the tissue mass, and delivering a fluid to the tissue mass through the lumen. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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Specification