Remodeling Device for Aneurysms
First Claim
1. A method of occluding at least a portion of a defect in a wall of a body vessel, comprising:
- providing a microcatheter capable of deploying an embolic material;
providing a delivery catheter housing an occlusion device in a collapsed orientation, wherein the occlusion device comprises a thin film mesh including;
a proximal end portion associated with a body portion, a plurality of slot members associated with said body portion, and a plurality of slit members associated with said proximal end portion, wherein said slot members are in a generally open condition and said slit members are in a generally closed condition when the occlusion device is in said collapsed orientation;
positioning at least an outlet portion of said microcatheter at the defect;
ejecting at least a portion of the occlusion device from a downstream end of the delivery catheter;
positioning the occlusion device adjacent to the defect;
providing for radial expansion of the occlusion device to a deployed orientation within the body vessel at which said slot members are in a generally closed condition and said slit members are in a generally open condition and such that a body portion of the occlusion device at least partially covers the defect and engages at least a portion of the microcatheter; and
ejecting said embolic material into the defect from said outlet portion of the microcatheter.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of occluding a defect in the wall of a body vessel is provided. An outlet portion of a microcatheter is delivered to the defect, then at least a body portion of a thin film occlusion device is radially expanded from a collapsed orientation to a deployed orientation for engaging the microcatheter and covering at least a portion of the defect. Thereafter, an embolic media is released into the defect from the microcatheter for facilitating thrombosis. The body portion of the occlusion device is substantially porous in the collapsed orientation, but substantially non-porous in the deployed orientation for preventing prolapse of the embolic media into the body vessel.
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Citations
25 Claims
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1. A method of occluding at least a portion of a defect in a wall of a body vessel, comprising:
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providing a microcatheter capable of deploying an embolic material; providing a delivery catheter housing an occlusion device in a collapsed orientation, wherein the occlusion device comprises a thin film mesh including;
a proximal end portion associated with a body portion, a plurality of slot members associated with said body portion, and a plurality of slit members associated with said proximal end portion, wherein said slot members are in a generally open condition and said slit members are in a generally closed condition when the occlusion device is in said collapsed orientation;positioning at least an outlet portion of said microcatheter at the defect; ejecting at least a portion of the occlusion device from a downstream end of the delivery catheter; positioning the occlusion device adjacent to the defect; providing for radial expansion of the occlusion device to a deployed orientation within the body vessel at which said slot members are in a generally closed condition and said slit members are in a generally open condition and such that a body portion of the occlusion device at least partially covers the defect and engages at least a portion of the microcatheter; and ejecting said embolic material into the defect from said outlet portion of the microcatheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of occluding at least a portion of a defect in a wall of a body vessel, comprising:
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providing a microcatheter capable of deploying an embolic material; providing an occlusion device in a collapsed orientation, the occlusion device comprising a thin film mesh including a proximal end portion and a distal end portion associated with a body portion, and wherein said body portion is substantially porous and said proximal end portion and said distal end portion are substantially non-porous in said collapsed orientation and said body portion is substantially non-porous and said proximal end portion and said distal end portion are substantially porous in said deployed orientation; positioning at least an outlet portion of the microcatheter at the defect; positioning the occlusion device adjacent to the defect; radially expanding the occlusion device to a deployed orientation, such that a body portion of the occlusion device at least partially covers the defect and engages at least a portion of the microcatheter; and ejecting the embolic material into the defect from said outlet portion of the microcatheter. - View Dependent Claims (11, 12, 13, 14)
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15. A system for occluding at least a portion of a defect in a wall of a body vessel, comprising:
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a microcatheter capable of deploying an embolic material to the defect; and an occlusion device capable of moving from a collapsed orientation to a deployed orientation, wherein said occlusion device comprises a thin film mesh including; a body portion engageable with at least a portion of the defect and at least a portion of the microcatheter when the occlusion device is in said deployed orientation, and a plurality of slot members associated with said body portion, wherein said slot members are in a generally open condition when the occlusion device is in said collapsed orientation and said slot members are in a generally closed condition with radial expansion movement and longitudinal foreshortening movement of the occlusion device to said deployed orientation within the body vessel. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification