Reducing flow through a tubular structure
First Claim
1. A method for reducing or stopping flow through a tubular structure of a patient, the method comprising:
- positioning a first elongate member within a lumen of the tubular structure, the first elongate member arranged to form a first frame having a distal opening and a proximal opening, the first frame configured to be positioned within a lumen of the tubular structure, the first frame having a proximal portion, a distal portion, and a middle portion therebetween, the distal portion tapered such that an outer cross-sectional dimension of the distal opening is less than an outer cross-sectional dimension of the middle portion, the first frame coupled to a first flow reducing member, the first flow reducing member being disposed over an exterior of the first frame and over the distal portion with at least a portion of the first flow reducing member extending from the exterior of the first frame into an interior of the first frame through the distal opening to form a flap in the interior of the first frame, the flap configured to operate as a one-way valve that moves in response to fluid flow to substantially prevent distal flow through the distal opening and to allow proximal flow through the distal opening; and
substantially reducing or totally obstructing, with the first flow reducing member, flow of at least one of emboli and fluid flowing through the lumen.
1 Assignment
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Accused Products
Abstract
A method for reducing or stopping flow through a tubular structure of a patient can include positioning an elongate member within a lumen of the tubular structure. The elongate member can be arranged to form a frame having a distal opening and a proximal opening. The elongate member can substantially reduce or totally obstruct, with a flow reducing member coupled to the frame, flow of at least one of emboli and fluid flowing through the lumen. The flow reducing member can comprise a one-way valve that moves in response to fluid flow to substantially prevent distal flow through the distal opening and to allow proximal flow through the distal opening.
400 Citations
23 Claims
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1. A method for reducing or stopping flow through a tubular structure of a patient, the method comprising:
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positioning a first elongate member within a lumen of the tubular structure, the first elongate member arranged to form a first frame having a distal opening and a proximal opening, the first frame configured to be positioned within a lumen of the tubular structure, the first frame having a proximal portion, a distal portion, and a middle portion therebetween, the distal portion tapered such that an outer cross-sectional dimension of the distal opening is less than an outer cross-sectional dimension of the middle portion, the first frame coupled to a first flow reducing member, the first flow reducing member being disposed over an exterior of the first frame and over the distal portion with at least a portion of the first flow reducing member extending from the exterior of the first frame into an interior of the first frame through the distal opening to form a flap in the interior of the first frame, the flap configured to operate as a one-way valve that moves in response to fluid flow to substantially prevent distal flow through the distal opening and to allow proximal flow through the distal opening; and substantially reducing or totally obstructing, with the first flow reducing member, flow of at least one of emboli and fluid flowing through the lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for reducing or stopping flow through a tubular structure of a patient, the method comprising:
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positioning an outer catheter within a lumen of the tubular structure at a first deployment site, wherein an inner catheter is disposed within the outer catheter, wherein a first elongate member is positioned between the inner catheter and the outer catheter, the first elongate member arranged to form a first frame having a distal opening and a proximal opening, the first frame having a proximal portion, a distal portion, and a middle portion therebetween, the distal portion tapered such that an outer cross-sectional dimension of the distal opening is less than an outer cross-sectional dimension of the middle portion, the first frame coupled to a first flow reducing member, the first flow reducing member being disposed over an exterior of the first frame and over the distal portion with at least a portion of the first flow reducing member extending from the exterior of the first frame into an interior of the first frame through the distal opening to form a flap in the interior of the first frame, the flap configured to operate as a one-way valve that moves in response to fluid flow to substantially prevent distal flow through the distal opening and to allow proximal flow through the distal opening; partially deploying the first frame from the outer catheter by shifting the inner catheter distally relative to the outer catheter until a portion of the first frame extends beyond a distal opening of the outer catheter into the first deployment site; retracting the first frame into the outer catheter by shifting the inner catheter proximally relative to the outer catheter until the portion of the first frame is retracted proximally into the outer catheter; positioning the outer catheter within the lumen at a second deployment site for deploying the first frame at the second deployment site; deploying the first frame from the outer catheter by shifting the inner catheter distally relative to the outer catheter until the first frame extends beyond the distal opening of the outer catheter into the second deployment site; and substantially reducing or totally obstructing, with the first flow reducing member coupled to the first frame, flow of at least one of emboli and fluid flowing through the lumen. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification