Embolizing system
First Claim
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1. An embolization system for entering a vessel at an entry point and occluding a lumen of the vessel at an occlusion site, comprising:
- a catheter having a lumen, the catheter being formed of a material suitable to follow the lumen of the vessel from the entry point to the occlusion site;
a first elongate member, insertable within the lumen of the catheter;
an occlusion particle having a receiving passageway therein for receiving the first elongate member so the first elongate member guides movement of the occlusion particle;
a pusher, slidable relative to the first elongate member within the lumen of the catheter to engage the occlusion particle and to move the occlusion particle relative to the first elongate member; and
wherein the first elongate member comprises a retaining end portion for controllably retaining the occlusion particle on the first elongate member.
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Abstract
An embolizing system includes a catheter having a lumen, an elongate member, insertable within the lumen of the catheter, and an occlusion particle. The occlusion particle has a receiving passageway therein for receiving the elongate member so the elongate member guides movement of the occlusion particle.
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Citations
10 Claims
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1. An embolization system for entering a vessel at an entry point and occluding a lumen of the vessel at an occlusion site, comprising:
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a catheter having a lumen, the catheter being formed of a material suitable to follow the lumen of the vessel from the entry point to the occlusion site; a first elongate member, insertable within the lumen of the catheter; an occlusion particle having a receiving passageway therein for receiving the first elongate member so the first elongate member guides movement of the occlusion particle; a pusher, slidable relative to the first elongate member within the lumen of the catheter to engage the occlusion particle and to move the occlusion particle relative to the first elongate member; and wherein the first elongate member comprises a retaining end portion for controllably retaining the occlusion particle on the first elongate member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of occluding a site in a vessel, comprising:
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accessing the site in the vessel with a catheter having a lumen; advancing an elongate member through the lumen; pushing a plurality of embolizing articles over the elongate member, through the lumen, to the site; selectively releasing a desired amount of the articles from the elongate member proximate the site in the vessel; and wherein the elongate member is a wire having a curved end portion, and said selectively releasing step further comprises straightening the curved end portion to release the desired amount of articles and allowing the end portion to return to its curved shape to retain additional articles on the wire.
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10. An embolization system for entering a vessel at an entry point and occluding a lumen of the vessel at an occlusion site, comprising:
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a catheter having a lumen, the catheter being formed of a material suitable to follow the lumen of the vessel from the entry point to the occlusion site; a first elongate member, insertable within the lumen of the catheter; an occlusion particle having a receiving passageway therein for receiving the first elongate member so the first elongate member guides movement of the occlusion particle; a pusher, slidable relative to the first elongate member within the lumen of the catheter to engage the occlusion particle and to move the occlusion particle relative to the first elongate member; and wherein the occlusion particle is formed of radiopaque and radioisotope materials.
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Specification