System for reversible contraceptive sterilization

An implantable tube valve configured to be implanted in a fallopian tube or urinary duct, the implantable tube valve comprising:

• an implantable tube having an inner tube wall forming a passage extending between two axial tube ends of the implantable tube;
• a valve member mounted inside the implantable tube and configured to pivot, using an actuator, between an open position and a closed position;
• wherein the valve member has an inner diameter of at least 2 mm so that the valve member has a size adapted for use in a fallopian tube or urinary duct and comprises:
• a sealing edge configured to contact the inner tube wall when the valve member is pivoted in the closed position for closing off passage through the implantable tube;
• an outer face that extends along a beak part and a pivot part of the valve member and extends from the sealing edge conformal to the inner tube wall of the implantable tube;
• an inner face that extends from the sealing edge conformal to the outer face for providing unobstructed passage through the implantable tube when the valve member is pivoted in the open position;
• wherein the implantable tube valve is configured such that, during use, the valve member smoothly pivots inside the inner tube wall of the implantable tube without a gap between the outer face of the valve member and the inner tube wall when the valve member is pivoted in the open position.