Abstract: Novel fluidic oscillator (FO) designs that can incorporate features to allow for performance tunability and pulsatile outlet flow. Novel fluidic designs that utilize 3D space are also incorporated. All novel design features mentioned herein can be combined in any fashion with each other.

Abstract: The present disclosure relates to an improved implantable drug delivery device, method, and system that is powered by compression and expansion of an inert gas contained within a compressible bellows and surrounded by a biocompatible housing that forms a reservoir which is connected to restricted channel for flow rate control and further connected to a flexible reinforced catheter that delivers medicants from the reservoir to the intrathecal space or other desired bodily tissue.

Abstract: A positive displacement pump can include a pump mechanism having a shaft configured to rotate about its long axis; a screw rod having a continuous thread around the circumference of the screw rod, the thread configured with an upward and downward thread component wherein the screw rod is operatively coupled to the shaft and reticulates along the long axis when the shaft is rotated about the long axis; a stylus positioned to engage the thread of the screw rod; cylindrical body forming a cavity configured to house at least a portion of the screw rod and allow movement of the screw rod along the long axis of the cylindrical body providing a pumping action in the cylindrical body cavity; an inlet and an outlet provided in the cylindrical body walls fluidly coupling the cylindrical body cavity with one or more external fluid paths.