Abstract: One embodiment of the present invention provides a piston assembly having a piston housing filled with an electrolyte; a housing within the piston housing that divides the piston housing into a first portion and a second portion, the housing having apertures, a shaft connecting the housing to a piston head outside of the piston housing; and a porous material inside of the housing in contact with the electrolyte. Additionally, there are provided a method for filling the delivery chamber with a delivery fluid by withdrawing the piston head from within the delivery chamber. Yet another embodiment provides a method for filling a fluid delivery assembly by withdrawing a shaft from within the fluid delivery assembly to simultaneously displace a moving pump element within the delivery chamber and bypass fluid around a housing in the pump chamber.

Abstract: The present invention provides a fluid delivery system having a first chamber, a second chamber and a third chamber; a flow-through pump element separating the first chamber from the second chamber; a moveable pump element separating the second chamber from the third chamber; a first outlet in communication with the third chamber; and second outlet in communication with the second chamber. Additionally, the present invention provides methods of operating a fluid delivery system having a first chamber, a second chamber and a delivery chamber by reducing the volume of the second chamber while increasing the volume of the delivery chamber without operation of a flow-through pump element that separates the second chamber from the first chamber.

Abstract: Kits carrying various components and devices are provided for use in obtaining access to a patient's vascular system. Various methods and procedures may be used to treat both emergency and more routine conditions using the contents of such kits. For example, such kits may contain various types of intraosseous (IO) devices including, but not limited to, drivers, penetrator assemblies, IO needles and other related components. Intravenous (IV) devices such as syringes, needles, IV bags, tubing and other related components for use in obtaining access to portions of a patient's vascular system may be included. Various types of connectors for communicating fluids with and/or monitoring a patient's vascular system may be provided. Such kits may contain medications, drugs and fluids used to treat a wide variety of both acute and chronic diseases and conditions.

Abstract: Apparatus for delivering a quantity of fluid to bone marrow of a bone or providing access to remove fluids from a target site is provided. The apparatus may include a driver, a plunger operating and cartridge assembly mechanism, a cartridge assembly having a fluid reservoir and a bone penetrating needle.