In a device for ambulatory wearing by the patient containing a pump for delivery of injection fluid or for removal of analysis fluid, the drive motor for the mechanically driven pump system is a Lavet-type stepper motor of small size designed for having a high mechanical power and low peak current requirement. Using this Lavet-type motor for syringe-type or peristaltic preferably patch-type pumps high infusion rates needed for e.g. bolus insulin injection or the delivery of therapeutic antibodies are achieved, and important safety features can be easily and reliably controlled, manufacturing costs get significantly reduced, and the overall size and weight of the device becomes smaller, for patient convenience.

A self-inflating cuff and methods of using the self-inflating cuff are provided. The self-inflating cuff includes first and second compartments formed within the self-inflating cuff and housing respective substances. The first and second compartments are configured to rupture in response to the force applied to an exterior surface of the self-inflating cuff, which causes the respective substances to combine to initiate a chemical reaction to produce a reactionary force on an interior surface of the self-inflating cuff that causes the self-inflating cuff to expand. The self-inflating cuff is further configured to expand such that a first opening at a first end of the self-inflating cuff and a second opening at a second end opposite the first end of the self-inflating cuff enlarge enough to receive a container through the first opening and a tubing of the container through the second opening.

In various embodiments, a drug pump includes a housing and, within the housing, an expandable drug reservoir at least part of which is exposed to a pressurized propellant. The propellant exerts a substantially constant pressure on the drug reservoir. A flow restrictor significantly limits outflow from the pump, and preferably has both a small diameter and a long path length, which acts to control the outflow from the drug reservoir. As a result, the pump produces a substantially constant outflow.

A disposable cartridge for a drug delivery device includes a flexible bag to accommodate a liquid medicament and having an opening adjacent to a sidewall, a socket having a fluid channel in fluid communication with a cartridge fluid coupling, and a housing covering at least a portion of the flexible bag and having a receptacle to receive the socket with the flexible bag. The socket extends into the opening of the flexible bag. The flexible bag's sidewall is fixed between the socket and the receptacle.

An IV product transport device is configured to transport an IV product 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. In one embodiment, the transport device includes 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 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 one in which the product comprises a flexible bag and a container housing for supporting and protecting the fluid bag.

In various embodiments, a drug pump includes a housing and, within the housing, an expandable drug reservoir at least part of which is exposed to a pressurized propellant. The propellant exerts a substantially constant pressure on the drug reservoir. A flow restrictor significantly limits outflow from the pump, and preferably has both a small diameter and a long path length, which acts to control the outflow from the drug reservoir. As a result, the pump produces a substantially constant outflow.

An orientation independent delivery device. The delivery device 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.

A cartridge assembly apparatus for an auto-injector includes a flexible container containing a liquid medicant. A needle hub is connected to the flexible container. A needle is attached to the needle hub and extends proximally from the needle hub. A frame is connected to the needle hub and includes a frame proximal end extending proximally beyond a proximal end of the needle. The needle hub and the needle are displaceable relative to the frame in a proximal direction to insert the needle into a patient.

An IV product transport device is configured to transport an IV product 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. In one embodiment, the transport device includes 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 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 one in which the product comprises a flexible bag and a container housing for supporting and protecting the fluid bag.

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.