A pump (26) attachable to a reservoir (24) and a cylinder (22) of an implantable penile prosthesis (20), the pump (26): a priming pump (40) connected to a pump body (42 ) operable priming pump to move liquid from the reservoir to the cylinder； one exhaust valve assembly (60) disposed in the pump body (42) within a flow path outlet (70) communicating the priming pump (40) and the cylinder (22)； an inlet valve (64, 200) disposed rotatably in the pump body (42) within a flow path inlet (76) connecting the reservoir (24) and the booster pump (40), the inlet valve (64, 200) includes a spherical portion (100, 210) held in a seat (110) formed by the pump body (42), an inlet flange (102, 212) connected to and extending radially away from the ball portion (100, 210), and a sealing flange (104, 214) connected to and extending radially away from the spherical portion (100, 210)； and a channel (114, 224) formed through a portion of the spherical portion (100, 210) of the inlet valve (64, 200), the channel (114, 224) including an outlet (132 ) which is blocked from the flow path inlet (76) through the seat (110) formed in the pump body (42) and is open to the flow path inlet (76) by rotation of the inlet valve (64, 200).Una bomba (26) acoplable a un depósito (24) y un cilindro (22) de una prótesis de pene (20) implantable, comprendiendo la bomba (26): una bomba de cebado (40) conectada a un cuerpo de bomba (42), la bomba de cebado operable para mover líquido desde el depósito al cilindro； un conjunto válvula de escape (60) dispuesto en el cuerpo de bomba (42) dentro de una trayectoria de circulación de salida (70) que comunica la bomba de cebado (40) y el cilindro (22)； una válvula de entrada (64, 200) dispuesta de forma que pueda girar en el cuerpo de bomba (42) dentro de una trayectoria de circulación de entrada (76) que comunica el depósito (24) y la bomba de cebado (40), la válvula de entrada (64, 200) incluye una parte esférica (100, 210) retenida en un asiento (110) formad
