Methods for fluid flow through body passages
First Claim
1. A method of forming a channel between a first vessel and a second vessel, the method comprising:
- forming a passage between the first vessel and the second vessel, wherein the first vessel is an artery and the second vessel is a vein;
deploying a device in the first vessel, the second vessel, and the passage, the device comprising;
a longitudinal axis;
a first end portion having a first radial stiffness, the first end portion having a first length along the longitudinal axis;
a second end portion having a second radial stiffness, the second end portion having a second length along the longitudinal axis; and
an intermediate portion between the first end portion and the second end portion, the intermediate portion having a third radial stiffness less than the first radial stiffness and the second radial stiffness, the intermediate portion having a third length along the longitudinal axis;
wherein deploying the device in the first vessel, the second vessel, and the passage comprises;
expanding the first end portion against sidewalls of the first vessel;
expanding the second end portion against sidewalls of the second vessel; and
expanding the intermediate portion in the passage, wherein expanding the intermediate portion comprises the dilating the passage.
2 Assignments
0 Petitions
Accused Products
Abstract
A device includes a first end portion, a second end portion, an intermediate portion between the first end portion and the second end portion, and a graft material coupled to at least the intermediate portion. The first end portion has a first end diameter. The second end portion has a second end diameter larger than the first end diameter. The intermediate portion tapers between the first end portion and the second end portion. A method of diverting fluid flow from a first passage to a second passage comprising deploying the device in a third passage between the first passage and the second passage, expanding the first end portion against sidewalls of the first passage, and expanding the second end portion against sidewalls of the second passage.
237 Citations
20 Claims
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1. A method of forming a channel between a first vessel and a second vessel, the method comprising:
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forming a passage between the first vessel and the second vessel, wherein the first vessel is an artery and the second vessel is a vein; deploying a device in the first vessel, the second vessel, and the passage, the device comprising; a longitudinal axis; a first end portion having a first radial stiffness, the first end portion having a first length along the longitudinal axis; a second end portion having a second radial stiffness, the second end portion having a second length along the longitudinal axis; and an intermediate portion between the first end portion and the second end portion, the intermediate portion having a third radial stiffness less than the first radial stiffness and the second radial stiffness, the intermediate portion having a third length along the longitudinal axis; wherein deploying the device in the first vessel, the second vessel, and the passage comprises; expanding the first end portion against sidewalls of the first vessel; expanding the second end portion against sidewalls of the second vessel; and expanding the intermediate portion in the passage, wherein expanding the intermediate portion comprises the dilating the passage. - View Dependent Claims (2, 3, 4, 5)
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6. A method of forming a channel between a first vessel and a second vessel, the method comprising:
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deploying a device in the first vessel, the second vessel, and a passage between the first vessel and the second vessel, the device comprising; a longitudinal axis; a first end portion having a first radial stiffness; a second end portion having a second radial stiffness; and an intermediate portion between the first end portion and the second end portion, the intermediate portion having a third radial stiffness less than the first radial stiffness and the second radial stiffness; wherein deploying the device in the first vessel, the second vessel, and the passage comprises; expanding the first end portion against sidewalls of the first vessel; expanding the second end portion against sidewalls of the second vessel; and expanding the intermediate portion in the passage, wherein expanding the intermediate portion comprises the dilating the passage. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method of forming a channel between a first vessel and a second vessel, the method comprising:
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deploying a device in the first vessel, the second vessel, and a passage between the first vessel and the second vessel, the device comprising; a first end portion having a first radial stiffness; a second end portion having a second radial stiffness; and an intermediate portion longitudinally between the first end portion and the second end portion, the intermediate portion having a third radial stiffness less than the first radial stiffness and the second radial stiffness; wherein deploying the device in the first vessel, the second vessel, and the passage comprises; expanding the first end portion against sidewalls of the first vessel; expanding the second end portion against sidewalls of the second vessel; and expanding the intermediate portion in the passage. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification