Abstract: An occlusive device can reversibly block flow through a lumen of a patient, such as a blood vessel, a reproductive structure, a ureter, a colon, and other body lumens. The device can include a frame comprising having a distal portion that tapers inwardly toward a central axis of the frame. The frame can expand from a compressed configuration to a deployed configuration. The device can also include a flow reducing member coupled to the frame for restricting flow through the lumen and a withdrawal component that can engaged by a retrieval device to retrieve the device from within the lumen.

Abstract: Described are apparatus and methods for preventing sperm passage through a reproductive structure of a patient, and also for subsequently reversing the preventative measure in order to restore fertility to the patient. In some embodiments, the apparatus includes an elongate member arranged to form a frame having a distal and proximal opening and configured to be positioned within a lumen of the reproductive structure. The apparatus may also have a flow reducing member coupled to the frame such that when the frame is positioned within the lumen, the flow reducing member substantially impedes, reduces, or totally obstructs passage of sperm through the lumen.

Abstract: Described are apparatus and methods for preventing sperm passage through a reproductive structure of a patient, and also for subsequently reversing the preventative measure in order to restore fertility to the patient. In some embodiments, the apparatus includes an elongate member arranged to form a frame having a distal and proximal opening and configured to be positioned within a lumen of the reproductive structure. The apparatus may also have a flow reducing member coupled to the frame such that when the frame is positioned within the lumen, the flow reducing member substantially impedes, reduces, or totally obstructs passage of sperm through the lumen.