Anti-reflux prosthesis
First Claim
1. A prosthesis for controlling flow through a bodily lumen, the prosthesis comprising:
- a body having a proximal portion, a distal portion and a body lumen extending therethrough;
a first valve for controlling flow through the body lumen in a first direction, the first valve forming a first opening in the prosthesis; and
a second valve for controlling flow through the body lumen in a second direction, the second valve comprising a tubular member that at least partially coextends longitudinally and circumferentially with the body, an outer wall of the second valve being sized and shaped to fit against at least a portion of an inner wall of the body, the second valve having a portion that contacts the body in a closed configuration and the portion is spaced apart from the body in an open configuration to form a second opening;
wherein the first opening is positioned apart from the second opening; and
the second opening opens in response to a higher pressure than the first opening.
3 Assignments
0 Petitions
Accused Products
Abstract
A prosthesis and a method for controlling flow through a bodily lumen in a first direction and a second direction are provided. The prosthesis includes a body having a proximal portion, a distal portion and a body lumen extending therethrough. The prosthesis also includes a first valve for controlling flow through the body lumen in a first direction where the first valve forms a first opening in the prosthesis. The prosthesis includes a second valve for controlling flow through the body lumen in a second direction where the second valve includes a portion that contacts the body in a closed configuration and the portion is spaced apart from the body in an open configuration to form the second opening. The first opening is positioned apart from the second opening and the second opening opens in response to a higher pressure than the first opening.
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Citations
20 Claims
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1. A prosthesis for controlling flow through a bodily lumen, the prosthesis comprising:
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a body having a proximal portion, a distal portion and a body lumen extending therethrough; a first valve for controlling flow through the body lumen in a first direction, the first valve forming a first opening in the prosthesis; and a second valve for controlling flow through the body lumen in a second direction, the second valve comprising a tubular member that at least partially coextends longitudinally and circumferentially with the body, an outer wall of the second valve being sized and shaped to fit against at least a portion of an inner wall of the body, the second valve having a portion that contacts the body in a closed configuration and the portion is spaced apart from the body in an open configuration to form a second opening; wherein the first opening is positioned apart from the second opening; and
the second opening opens in response to a higher pressure than the first opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 18, 19, 20)
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14. A method of controlling flow through a bodily lumen in a first direction and a second direction, the method comprising:
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positioning a body of a prosthesis within the bodily lumen, the prosthesis including a first valve and a second valve, the first valve for controlling flow through the body lumen in a first direction, the first valve forming a first opening in the prosthesis and the second valve for controlling flow through the body lumen in a second direction, the second valve comprising a tubular member that at least partially coextends longitudinally and circumferentially with the body, an outer wall of the second valve being sized and shaped to fit against at least a portion of an inner wall of the body, the second valve having a portion that contacts the body in a closed configuration and the portion is spaced apart from the body in an open configuration to form a second opening; opening the first valve in response to the flow in the first direction; and opening the second valve in response to the flow in the second direction where a pressure required to open the second valve is greater than a pressure required to open the first valve, the first valve being closed in the absence of the flow in the first direction and the second valve being closed in the absence of flow in the second direction at the higher pressure. - View Dependent Claims (15, 16, 17)
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Specification