Abstract: Implantable tube valve for implanting in a human vessel, comprising a tube, having an inner and outer tube wall extending between two axial tube ends and comprising a valve member, connected to a pivot shaft supported by the tube, with the valve member pivotable between an open position and a closed position and comprising an actuator mechanism, mounted on the outer In tube wall and comprising a pivot member, arranged for driving the pivot shaft from the outer tube wall by an actuation force from the actuator mechanism and comprising at least one biasing element, connected to the pivot member and arranged for preloading the pivot member to bistably bias the valve member towards the open or closed position, wherein the pivot member is substantially curved, having a curvature following a contour of the inner tube wall to limit a lateral extension of the implantable tube valve.

Abstract: A system for reversible contraceptive sterilization is described. It is proposed to provide an implantable tube valve for implanting in a human vessel, in particular, the fallopian tube. The implantable tube valve includes: an implantable tube having an inner tube wall extending between two axial tube ends and includes a mount inside the tube; and a valve member mounted in the mount and pivotable between an open position and a closed position. The valve member includes a sealing edge that contacts the inner tube wall, when pivoted in the closed position, with the valve member closing off passage through the implantable tube. The valve member further includes an outer face conformal to the inner tube wall and an inner face conformal to the outer face, thereby providing unobstructed passage through the implantable tube when pivoted in the open position.