Method and apparatus for restricting flow through an opening in the side wall of a body lumen, and/or for reinforcing a weakness in the side wall of a body lumen, while still maintaining substantially normal flow through the body lumen
First Claim
Patent Images
1. An expandable substantially spherical structure for deployment in a blood vessel or other body lumen, comprising:
- an open frame formed out of a closed loop of filament and configured to assume (i) a collapsed configuration in the form of a substantially two-dimensional elongated loop structure so as to facilitate insertion into the blood vessel or other body lumen, and (ii) an expanded configuration in the form of a three-dimensional substantially spherical structure so as to facilitate retention at a site in the blood vessel or other body lumen; and
a flow-restricting face carried by the open frame;
wherein the open frame is configured so as to permit substantially normal flow therethrough when the open frame is in its expanded configuration, and further wherein the flow-restricting face is configured so as to restrict flow therethrough.
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Accused Products
Abstract
An expandable substantially spherical structure for deployment in a blood vessel or other body lumen, comprising:
- an open frame formed out of a closed loop of filament and configured to assume (i) a collapsed configuration in the form of a substantially two-dimensional elongated loop structure so as to facilitate insertion into the blood vessel or other body lumen, and (ii) an expanded configuration in the form of a three-dimensional substantially spherical structure so as to facilitate retention at a site in the blood vessel or other body lumen; and
- a flow-restricting face carried by the open frame;
- wherein the open frame is configured so as to permit substantially normal flow therethrough when the open frame is in its expanded configuration, and further wherein the flow-restricting face is configured so as to restrict flow therethrough.
183 Citations
54 Claims
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1. An expandable substantially spherical structure for deployment in a blood vessel or other body lumen, comprising:
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an open frame formed out of a closed loop of filament and configured to assume (i) a collapsed configuration in the form of a substantially two-dimensional elongated loop structure so as to facilitate insertion into the blood vessel or other body lumen, and (ii) an expanded configuration in the form of a three-dimensional substantially spherical structure so as to facilitate retention at a site in the blood vessel or other body lumen; and a flow-restricting face carried by the open frame; wherein the open frame is configured so as to permit substantially normal flow therethrough when the open frame is in its expanded configuration, and further wherein the flow-restricting face is configured so as to restrict flow therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for restricting flow to an opening in the side wall of a blood vessel or other body lumen and/or reinforcing a weakness in the side wall or apex of a bifurcation of the blood vessel or other body lumen, while maintaining substantially normal flow through the blood vessel or other body lumen, comprising:
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an expandable substantially spherical structure for deployment in the blood vessel or other body lumen, comprising; an open frame formed out of a closed loop of filament and configured to assume (i) a collapsed configuration in the form of a substantially two-dimensional elongated loop structure so as to facilitate insertion into the blood vessel or other body lumen, and (ii) an expanded configuration in the form of a three-dimensional substantially spherical structure so as to facilitate retention at a site in the blood vessel or other body lumen; and a flow-restricting face carried by the open frame; wherein the open frame is configured so as to permit substantially normal flow therethrough when the expandable open frame is in its expanded configuration, and further wherein the flow-restricting face is configured so as to restrict flow therethrough; and an installation tool for carrying the expandable substantially spherical structure to a deployment site, wherein the installation tool comprises; an elongated structure having a first mount for seating a first portion of the closed loop and a second mount for seating a second portion of the closed loop, the first mount and the second mount being movable relative to one another between a first position and a second position so that (i) when the first portion of the closed loop is seated in the first mount and the second portion of the closed loop is seated in the second mount and the first mount and second mount are in their first position, the open frame is in its expanded substantially spherical configuration, and (ii) when the first portion of the closed loop is seated in the first mount and the second portion of the closed loop is seated in the second mount and the first mount and second mount are in their second position, the open frame is in its collapsed and elongated configuration. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for restricting flow to an opening in the side wall of a body lumen while maintaining substantially normal flow through the body lumen, comprising:
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providing an expandable substantially spherical structure for deployment in the body lumen, comprising; an open frame formed out of a closed loop of filament and configured to assume (i) a collapsed configuration in the form of a substantially two-dimensional elongated loop structure so as to facilitate insertion into the blood vessel or other body lumen, and (ii) an expanded configuration in the form of a three-dimensional substantially spherical structure so as to facilitate retention at a site in the blood vessel or other body lumen; and a flow-restricting face carried by the open frame; wherein the open frame is configured so as to permit flow therethrough when the open frame is in its expanded configuration, and further wherein the flow-restricting face is configured so as to restrict flow therethrough; delivering the expandable substantially spherical structure to a therapy site within the body lumen while the open frame is in its collapsed configuration; and transforming the expandable substantially spherical structure from its collapsed configuration to its expanded configuration so that the expandable substantially spherical structure is securely lodged in the body lumen, with the flow-restricting face of the expandable substantially spherical structure positioned so as to restrict flow to the opening in the side wall of the body lumen and with the open frame permitting flow through the body lumen. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An expandable substantially spherical structure for deployment in a blood vessel or other body lumen, comprising:
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an open frame configured to assume a collapsed configuration and an expanded configuration; a flow-restricting face carried by the open frame; and a plurality of stabilizing legs attached to, and extending away from, the open frame; wherein the open frame and the plurality of stabilizing legs are configured so as to permit substantially normal flow therethrough when the open frame is in its expanded configuration, and further wherein the flow-restricting face is configured so as to restrict flow therethrough. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A method for restricting flow through an opening in the side wall of a body lumen while maintaining substantially normal flow through the body lumen, comprising:
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providing an expandable substantially spherical structure for deployment in the body lumen, comprising; an open frame configured to assume a collapsed configuration and an expanded configuration; a flow-restricting face carried by the open frame; and a plurality of stabilizing legs attached to, and extending away from, the open frame; wherein the open frame and the plurality of stabilizing legs are configured so as to permit flow therethrough when the open frame is in its expanded configuration, and further wherein the flow-restricting face is configured so as to restrict flow therethrough; delivering the expandable substantially spherical structure to a therapy site within the body lumen while the open frame is in its collapsed configuration and the plurality of stabilizing legs are in a collapsed configuration; and transforming the expandable substantially spherical structure from its collapsed configuration to its expanded configuration, and transforming the plurality of stabilizing legs from their collapsed configuration to an expanded configuration, so that the expandable substantially spherical structure is securely lodged in the body lumen, with the flow-restricting face of the expandable substantially spherical structure positioned so as to restrict flow to the opening in the side wall of the body lumen and with the open frame and the plurality of stabilizing legs permitting flow through the body lumen. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54)
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Specification