Techniques are disclosed for reducing the accumulation of gases in an implantable infusion device. In one example, an implantable infusion device (IID) includes a housing, an expandable and contractible reservoir, and a standoff member. The expandable and contractible reservoir is configured to store a therapeutic agent and is arranged within the housing. A first end of the reservoir is configured to collapse toward a second end of the reservoir as the reservoir contracts. The standoff member is interposed between the first end and the second end of the reservoir and is configured to hold at least a portion of the first end offset from the second end when the reservoir is in a contracted state.

Fluid delivery and measurement systems and methods are disclosed.

An orientation independent delivery device including a replaceable cartridge that may be installed on a foundation. A cartridge includes a gas chamber, a delivery chamber, a gas cell, and a delivery aperture. The gas chamber includes a gas-side rigid portion and a gas-side flexible barrier. The gas-side flexible barrier is sealed to the gas-side rigid portion. The delivery chamber includes a delivery-side rigid portion and a delivery-side flexible barrier. The delivery-side flexible barrier is sealed to the delivery-side rigid portion and is oriented adjacent to the gas-side flexible barrier. The gas cell is coupled to the gas-side rigid portion of the gas chamber. The gas cell increases a gas pressure within the gas chamber to expand the gas-side flexible barrier. Expansion of the gas-side flexible barrier applies a compressive force to the delivery-side flexible barrier allowing a delivery material to escape from the delivery chamber.

The present disclosure relates to a medicament delivery device. The medicament delivery device comprises a housing, a needle and a reservoir. The needle is configured to project from a distal end of the housing. The reservoir is disposed in the housing and has a flexible wall. The medicament delivery device further comprises a dispensing member and a biasing member. The dispensing member is disposed in the housing and the biasing member is configured to bias the dispensing member to move in an arcuate path relative to the housing such that the dispensing member moves across the flexible wall of the reservoir to dispense medicament from the reservoir when the reservoir contains medicament.

A transport device configured to transport an IV product or medication from one location to another in automated fashion. The transport device may comprise a chassis with one or more ports for IV products. A drive mechanism is configured to move the transport device, and instructions for execution can be provided by a controller. Information may be provided to the controller about an IV product, such as its intended destination or use. The controller may also exchange information with a delivery location or device, such as an infusion pump, to verify that the IV product is delivered to the proper destination. The transport device may include a delivery mechanism for off-loading an IV product. The transport device may deliver IV products of various configurations, including configurations in which the product comprises a flexible bag and a container housing for supporting and protecting the fluid bag.

An auto-injector apparatus includes a flexible container containing a liquid medicant, a needle communicated with a container, a housing with a container being received in the housing, a pump disposed in the housing and positioned to engage the flexible container and expel the medicant from the container through the needle upon relative movement between the pump and the container, and a main drive spring operably associated with the needle to extend the needle from a first needle position wherein the needle is completely received in the housing to a second needle position wherein the needle protrudes from the housing. The pump may be a roller.

Embodiments of the invention provide infusion systems for the intravenous or other delivery of drugs and other therapeutic agents to a patient including a human or mammal. The therapeutic agents may be dissolved in solution or comprise the solution itself. Embodiments of the systems can utilize a chemical reaction to predictably drive a flow of drug(s) through a catheter or other flow path and into the patient. More specifically, the reaction may include an acid-base reaction or any other reaction that produces a gaseous substance. The gas is produced and contained in an expandable drive balloon when the acid-base reactants are combined with a liquid. As the gas is produced, the drive balloon expands to exert pressure on a separately-contained drug reservoir which, in turn, pushes drug(s) from the reservoir into the flow path where the drug is ultimately delivered to the patient in a controlled and predetermined manner.

Fluid delivery and measurement systems and methods are disclosed.

The present invention relates to an assembly for a drug delivery device comprising a dispensing container and a reservoir container for holding a fluid medicinal product, wherein the dispensing container and the reservoir container are connected to one another and are in fluid communication, and wherein the dispensing container is squeezable for dispensing a dose of the fluid medicinal product from the dispensing container, the dispensing container being refillable with the fluid medicinal product from the reservoir container.

An auto-injector apparatus includes a flexible container containing a liquid medicant, a needle communicated with a container, a housing with a container being received in the housing, a pump disposed in the housing and positioned to engage the flexible container and expel the medicant from the container through the needle upon relative movement between the pump and the container, and a main drive spring operably associated with the needle to extend the needle from a first needle position wherein the needle is completely received in the housing to a second needie position wherein the needle protrudes from the housing. The pump may be a roller.