The present invention relates to a male contraception apparatus for obtaining a time-limited sterility of a male mammalian individual. The apparatus comprises a restriction device adapted to restrict the lumen of a vas deferens of the mammalian, and a controller operable to control the restriction device to restrict the lumen of the vas deferens during a controlled period to prevent sperms from reaching the urethra of the mammalian. The apparatus further comprises an implantable constriction device configured to gently constrict at least one portion of a tissue wall of the vas deferens to restrict the lumen of the vas deferens such that the flow of sperms in the vas deferens is restricted, and a stimulation device configured to stimulate the constricted wall portion of the tissue wall.

There is provided a method for controlling a flow of sperms in a uterine tube of a female patient. The method comprises electrically stimulating a uterine tube wall portion by controlling an implanted stimulation device from at least one of an external control unit and an internal control unit, wherein the electrically stimulating causes contraction of the uterine tube wall portion along a length of the portion to restrict the flow of sperms in the uterine tube.

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 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.

An apparatus for controlling the flow of urine in a urethra of a patient is provided, comprising an implantable adjustable constriction device for constricting the urethra to influence the flow in the urinary tract, a control device for controlling the constriction device, wherein the control device is configured to control the constriction device to constrict the urethra or to release a constriction of the urethra, and an operation device for operating the constriction device. The apparatus further comprises an energy source for supplying energy for the operation device, wherein the control device comprises a temperature sensor configured to sense a temperature of the apparatus or a temperature of the patient.

An apparatus for controlling a flow of urine in a urethra of a patient is disclosed, comprising an implantable constriction device for constricting the urethra to influence the flow in the urinary tract. The constriction device comprises a plurality of constriction elements configured to be arranged at different locations along the flow direction of the urethra, wherein each constriction element is configured to at least partly encircle the urethra and to be operable so as to change a constriction of the urethra. The apparatus further comprises an operation device configured to operate the constriction elements.

An apparatus for controlling a flow of urine in a urethra of a patient is provided, comprising an implantable constriction device for constricting the urethra to influence the flow in the urinary tract. The constriction device comprises a plurality of clamping elements configured to be arranged in a common plane intersecting the urethra and to be radially movable towards and away from a central axis of the urethra to change a constriction of the urethra. The apparatus further comprises an operation device configured to operate the movement of the clamping elements, an implantable motor configured to operate the operation device, and a gear box configured to transfer a force generated by the motor into a force operating the operation device.

An apparatus for controlling the flow of urine in a urethra of a patient is provided, comprising an implantable adjustable constriction device for constricting the urethra to influence the flow in the urinary tract, an operation device for operating the constriction device, a control device for controlling the operation device, and an energy source for supplying energy to the operation device. The control device is configured to determine the current state of the energy source, and connected to an internal signal transmitter configured to transmit information related to the current state of the energy source.

The present invention relates to a contraception apparatus for a male. The contraception apparatus for a male according to an embodiment of the present invention comprises: a tube inserted into a seminal duct and having, on the inside, a hollow portion that is open at both ends; and at least one filter located in the hollow portion of the tube. The filter may comprise: a plurality of microchannels penetrating the filter; and a plurality of nanospikes formed on one surface of the filter.

The present invention relates to a male contraception apparatus for obtaining a time-limited sterility of a male mammalian individual. The apparatus comprises a restriction device adapted to restrict the lumen of a vas deferens of the mammalian, and a controller operable to control the restriction device to restrict the lumen of the vas deferens during a controlled period to prevent sperms from reaching the urethra of the mammalian. The apparatus further comprises an implantable constriction device configured to gently constrict at least one portion of a tissue wall of the vas deferens to restrict the lumen of the vas deferens such that the flow of sperms in the vas deferens is restricted, and a stimulation device configured to stimulate the constricted wall portion of the tissue wall.

An apparatus for controlling a flow of sperms in a uterine tube formed by a uterine tube wall of a patient's uterine tube comprises an implantable constriction device for gently constricting (i.e. without substantially hampering the blood circulation in the uterine tube wall) at least one portion of the uterine tube wall to influence the flow in the uterine tube, and a stimulation device for stimulating the wall portion of the uterine tube wall. A control device controls the stimulation device to stimulate the wall portion, as the constriction device constricts the wall portion, to cause contraction of the wall portion constricted by the constriction device to further influence the flow in the uterine tube. The apparatus can be used for restricting or stopping the flow in the uterine tube, or for actively moving the fluid in the uterine tube, with a low risk of injuring the uterine tube.