Abstract: A valve insertable into a body lumen has a body region forming a first leaflet and a second leaflet, with the first leaflet in contact with the second leaflet to provide the valve with a closed position. The body region includes a multiblock copolymer that is biomimetic and hydrolytically stable.

Abstract: A valve insertable into a body lumen has a body region forming a first leaflet and a second leaflet, with the first leaflet in contact with the second leaflet to provide the valve with a closed position. The body region includes a multiblock copolymer that is biomimetic and hydrolytically stable.

Abstract: A valve insertable into a body lumen includes a body region extending in a distal direction away from a proximal rim. The proximal rim defines an outer perimeter of the valve at a proximal end of the valve. The body region forms a first leaflet and a second leaflet, with the first leaflet in contact with the second leaflet to provide the valve with a closed position. The first leaflet includes a first segment in contact with the proximal rim and a second segment in contact with the second leaflet. The first segment is curved to include a convex exterior surface and a concave interior surface of the valve. The second segment is curved to include a concave exterior surface and a convex interior surface of the valve.

Abstract: A valve insertable into a body lumen includes a body region extending in a distal direction away from a proximal rim. The proximal rim defines an outer perimeter of the valve at a proximal end of the valve. The body region forms a first leaflet and a second leaflet, with the first leaflet in contact with the second leaflet to provide the valve with a closed position. The first leaflet includes a first segment in contact with the proximal rim and a second segment in contact with the second leaflet. The first segment is curved to include a convex exterior surface and a concave interior surface of the valve. The second segment is curved to include a concave exterior surface and a convex interior surface of the valve.

Abstract: A luminal valve for placing in a body lumen comprises at least four valve leaflets. The valve has a normally closed configuration in which the leaflets are engaged and an open configuration in which the leaflets are open. The valve may be mounted to an esophageal support.

Abstract: A luminal valve for placing in a body lumen comprises at least four valve leaflets. The valve has a normally closed configuration in which the leaflets are engaged and an open configuration in which the leaflets are open. The valve may be mounted to an esophageal support.

Abstract: A luminal valve for placing in a body lumen comprises at least four valve leaflets. The valve has a normally closed configuration in which the leaflets are engaged and an open configuration in which the leaflets are open. The valve may be mounted to an esophageal support.

Abstract: A luminal valve for placing in a body lumen comprises at least four valve leaflets. The valve has a normally closed configuration in which the leaflets are engaged and an open configuration in which the leaflets are open. The valve may be mounted to an esophageal support.

Abstract: An esophageal valve comprising a polymeric valve body having an outer support region, at least three valve leaflets, and a main body region extending between the support region and the valve leaflets. The valve has a normally closed configuration in which the valve is closed, an antegrade open configuration in which the valve leaflets are opened in response to an antegrade force to allow flow through the valve and a retrograde open configuration in response to a retrograde force which is substantially larger than the antegrade force.

Abstract: An esophageal valve comprising a polymeric valve body having an outer support region, at least three valve leaflets, and a main body region extending between the support region and the valve leaflets. The valve has a normally closed configuration in which the valve is closed, an antegrade open configuration in which the valve leaflets are opened in response to an antegrade force to allow flow through the valve and a retrograde open configuration in response to a retrograde force which is substantially larger than the antegrade force.

Abstract: An esophageal valve comprising a polymeric valve body having an outer support region, at least three valve leaflets, and a main body region extending between the support region and the valve leaflets. The valve has a normally closed configuration in which the valve is closed, an antegrade open configuration in which the valve leaflets are opened in response to an antegrade force to allow flow through the valve and a retrograde open configuration in response to a retrograde force which is substantially larger than the antegrade force.

Abstract: A luminal valve for placing in a body lumen comprises at least four valve leaflets. The valve has a normally closed configuration in which the leaflets are engaged and an open configuration in which the leaflets are open. The valve may be mounted to an esophageal support.

Abstract: A valve such as an esophageal valve has a normally closed configuration in which the valve is closed and an open configuration in which the valve is opened for flow through the valve. A support for the valve is adapted for mounting to a pre-deployed luminal prosthesis intermediate a proximal end and a distal end of the predeployed luminal prosthesis.