Occlusion of a vessel
First Claim
Patent Images
1. A device for occluding a vascular segment, comprising:
- a tubular member having a proximal end portion and a distal end portion and a lumen extending therethrough;
an expandable member at the distal end portion of the tubular member, the expandable member being formed at least in part from a braided structure;
an elongate member having a proximal end portion and a distal end portion, wherein the distal end portion is connected to the expandable member, and the elongate member extends longitudinally within the lumen of the tubular member, the elongate member being longitudinally moveable between a first position wherein the expandable member is in a collapsed configuration, and a second position wherein the expandable member is in an expanded configuration, and wherein the elongate member moves proximally longitudinally with respect to the tubular member as the expandable member moves from its collapsed configuration to its expanded configuration; and
an occluding membrane encapsulating the expandable member, the occluding membrane being configured to completely occlude blood flow in the vascular segment.
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Abstract
A device for occluding a vessel employs one of a number of different expansion members joined to one or more elongate members. The expansion member may include a braid, one or more coils, ribs, a ribbon-like structure, a slotted tube, or a filter-like mesh. If the expansion member is enclosed by a suitable membrane, the device seals with the vessel wall to partially or completely occlude the vessel. A perforated membrane may be used to permit the perfusion of blood. The expansion member may be self-expanding, or it may be expanded by engaging it with one of the elongate members. Alternatively, the expansion member may be expanded by heating it.
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Citations
20 Claims
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1. A device for occluding a vascular segment, comprising:
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a tubular member having a proximal end portion and a distal end portion and a lumen extending therethrough; an expandable member at the distal end portion of the tubular member, the expandable member being formed at least in part from a braided structure; an elongate member having a proximal end portion and a distal end portion, wherein the distal end portion is connected to the expandable member, and the elongate member extends longitudinally within the lumen of the tubular member, the elongate member being longitudinally moveable between a first position wherein the expandable member is in a collapsed configuration, and a second position wherein the expandable member is in an expanded configuration, and wherein the elongate member moves proximally longitudinally with respect to the tubular member as the expandable member moves from its collapsed configuration to its expanded configuration; and an occluding membrane encapsulating the expandable member, the occluding membrane being configured to completely occlude blood flow in the vascular segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for occluding a vascular segment, comprising:
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a tubular member having a proximal end portion and a distal end portion and a lumen extending therethrough; an expandable member at the distal end portion of the tubular member; an elongate member having a proximal end portion and a distal end portion, wherein the distal end portion is connected to the expandable member, and the elongate member extends longitudinally within the lumen of the tubular member, the elongate member being longitudinally moveable relative to the tubular member between a first position wherein the expandable member is in a collapsed configuration, and a second position wherein the expandable member is in an expanded configuration, wherein the elongate member is pulled proximally from the first position to the second position with respect to the tubular member to expand the expandable member; and a covering disposed over the expandable member configured to expand with the expandable member and further configured to interrupt fluid flow through a vascular segment when the expandable member is in the expanded configuration. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification