POLYMER MATRIX DEVICES FOR TREATMENT OF VASCULAR MALFORMATIONS
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Accused Products
Abstract
A system for treating a wide-neck aneurysm comprising a mesh-like sleeve fabricated from a class of polymer filaments that carry conductive particles therein to provide the filaments with a specified resistivity. The releasable mesh-like sleeve is introduced to the site of a targeted vascular malformation by the working end of a catheter that carries an electrode arrangement at its distal terminus. The system further provides an electrical source and controller (i) that modulates power delivery to the polymer matrix which can then fuse the sleeve to the wall of a blood vessel to span across the vascular malformation.
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Citations
31 Claims
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1-22. -22. (canceled)
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23. A method of treating a vascular malformation at a targeted site within a patient'"'"'s vasculature, comprising the steps of:
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introducing a catheter into the patient'"'"'s vasculature that carries a releasable mesh polymer sleeve, wherein the mesh elements define a specified resistivity;
activating an expansion structure to expand the polymer sleeve to engage the walls of the vessel proximate the targeted site;
delivering electrical current flow at a selected power level to the mesh of the polymer sleeve thereby fusing the mesh of the sleeve to the vessel wall;
de-activating the expansion structure and withdrawing the catheter from the patient'"'"'s vasculature leaving said polymer sleeve at the targeted site. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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Specification