Fluid flowing host main body in implantable device includes contraction members, with allow fluid body pipe when in the open position, and for reducing fluid in integral tube in a closed position. Remote telemetering can be used for operating contraction members from the position outside body. Collapsible part can include the body pipe that piston attacks the vessel surface that minimum two protrusions are in contact. The component of fluid operation can receive fluid and reduce fluid in body pipe and expulsion fluid to allow fluid in body pipe. Actuating component is used for the actuated component of operation stream between open and closed positions. There is actuating member structure fluid to be made to flow in and out fluid-operated component. Control device is used to operate actuating component. Implantable driving mechanism contraction members or other Medical Devices, it include: a seal casinghousing, for being implanted into patient body, drive magnet is located in shell, actuator is for moving driving magnet, be located at the outside of shell with magnetic sensitive driving member, so as in drive magnet shell will mobile actuator shell outside.
