Tissue marking apparatus having drug-eluting tissue marker
First Claim
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1. A tissue marking apparatus, comprising:
- a marker introducer that includes a cannula and a stylet, the cannula having a lumen and a marker exit port, and the stylet being slidably received in the lumen, the stylet having a distal end; and
a tissue marker configured to be received in the lumen distal to the distal end of the stylet, the tissue marker including;
a marker portion configured to mark a site within a soft tissue mass, the marker portion having a length extending along a centerline of the marker portion between a first end and a second end and having a substantially continuous wall along the length, the substantially continuous wall bounding a hollow interior; and
a drug-eluting portion comprising a drug,wherein the substantially continuous wall that bounds the hollow interior includes at least one opening configured to allow the drug to pass out of the hollow interior.
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Abstract
A tissue marking apparatus includes a marker introducer that has a cannula and a stylet. The cannula has a lumen and a marker exit port. The stylet is slidably received in the lumen. The stylet has a distal end. A tissue marker is configured to be received in the lumen distal to the distal end of the stylet. The tissue marker is a drug-eluting tissue marker for marking a site in a tissue mass, and has a drug-eluting portion having a drug for release to the site and a material that can be imaged using an imaging technique.
500 Citations
20 Claims
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1. A tissue marking apparatus, comprising:
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a marker introducer that includes a cannula and a stylet, the cannula having a lumen and a marker exit port, and the stylet being slidably received in the lumen, the stylet having a distal end; and a tissue marker configured to be received in the lumen distal to the distal end of the stylet, the tissue marker including; a marker portion configured to mark a site within a soft tissue mass, the marker portion having a length extending along a centerline of the marker portion between a first end and a second end and having a substantially continuous wall along the length, the substantially continuous wall bounding a hollow interior; and a drug-eluting portion comprising a drug, wherein the substantially continuous wall that bounds the hollow interior includes at least one opening configured to allow the drug to pass out of the hollow interior. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A tissue marking apparatus, comprising:
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a marker introducer that includes a cannula and a stylet, the cannula having a lumen and a marker exit port, and the stylet being slidably received in the lumen, the stylet having a distal end; and an imaging marker configured to be received in the lumen distal to the distal end of the stylet, the imaging marker including a marker portion and a drug-eluting portion, with at least one of the marker portion and the drug-eluting portion being imageable, the marker portion having a length extending along a centerline of the marker portion between a first end and a second end and having a substantially continuous wall along the length, the substantially continuous wall bounding a hollow interior and at least partially encapsulating the drug eluting portion within the hollow interior, and wherein the length of the marker portion is greater than an average diameter of the hollow interior and the substantially continuous wall includes at least one opening adapted to allow the drug to pass out of the hollow interior. - View Dependent Claims (11, 12, 13)
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14. A tissue marking apparatus, comprising:
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a marker introducer that includes a cannula and a stylet, the cannula having a lumen and a marker exit port, and the stylet being slidably received in the lumen, the stylet having a distal end; and a tissue marker configured to be received in the lumen distal to the distal end of the stylet, the tissue marker including; a marker portion configured to mark a site within a soft tissue mass, the marker portion being formed as a body having open ends, and having a substantially continuous wall bounding a hollow interior; and a drug-eluting portion comprising a drug, wherein the drug-eluting portion is disposed within the hollow interior of the body, and wherein the open ends facilitate a passing of the drug out of the hollow interior of the body to a region outside the body; and wherein the body is in the form of a tube having a plurality of openings that extend through the wall, and wherein the plurality of openings facilitate the passing of the drug out of the hollow interior of the tube to the region outside the tube. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification