A pump for pumping fluid includes a tube platen, a plunger, a bias member, inlet and outlet valves, an actuator mechanism, a position sensor, and a processor. The plunger is configured for actuation toward and away from the infusion-tube when the tube platen is disposed opposite to the plunger. The tube platen can hold an intravenous infusion tube. The bias member is configured to urge the plunger toward the tube platen.

A skin patch drug infusion device is disclosed. The skin patch drug infusion device includes an infusion mechanism module, the infusion mechanism module includes an infusion module and a circuit module, the circuit module includes: a circuit board or a three-dimensional circuit coated on the surface of part components, for supplying power to specific units; a power supply, for supplying power to the infusion device; an elastic conductor, provided with at least a protrusion, for electrically connecting the power supply to the specific connection end on the circuit board or three-dimensional circuit; a control mechanism module, electrically connected with the infusion mechanism module; and an adhesive patch, for attaching the infusion mechanism module and the control mechanism module to the skin surface. The elastic conductor is provided with protrusions.

A method that includes receiving, in a medication delivery module, a command to start a medication delivery from a first control module coupled to the medication delivery module, is provided. The command to start the medication delivery is based on clinical information received at the first control module. The method includes recording, in a memory of the medication delivery module, an update of the medication delivery, receiving an indication that the medication delivery module was decoupled from the first control module, and receiving an indication that the medication delivery module has become coupled with a second control module. The method also includes communicating, in response, with the second control module, to update the clinical information. A system and a non-transitory, computer readable medium storing instructions to perform the above method are also provided.

Ambulatory infusion pumps, pump assemblies, cartridges, baseplates, cannulas, insertion tools, and related components as well as combinations thereof and related methods.

Infusion device constituted to detect an abnormal condition during bolus injection An infusion device (1) for administering a medical fluid to a patient (4) comprises a pumping mechanism (12) for pumping a medical fluid through an infusion line (3) towards a patient (4), a sensor device (120) for measuring a measurement value indicative of a pressure in the infusion line (3), and a control device (13) being constituted to control the pumping mechanism (12) for injecting a bolus of medical fluid into the infusion line (3). Herein, the control device (13) is constituted to determine, dependent on an injection of a bolus into the infusion line (3), a control parameter taking a change in pressure during injection of the bolus into account and to derive, from the control parameter, the presence of an abnormal condition during the injection of the bolus. In this way an infusion device is provided which in a reliable manner allows for the detection of an abnormal condition during the administration of a bolus.

The systems, methods and articles described herein are directed to at least one pressure sensor along a downstream fluid line which senses fluid pressure and assists an occlusion detection feature in determining the presence of occlusions in the downstream fluid line. In addition, the system can dynamically adapt the occlusion detection feature based on a delivery of fluid, such as a bolus, in order to prevent the system from creating a false alarm regarding an occlusion of the downstream fluid line.

Infusion control devices are disclosed that can actively control and monitor medical fluid administration for gravity based infusion of medical fluid, where the gravity infusion control system is couplable with an intravenous administration set and can include a flow monitor, a flow controller, and a user interface.

A method for monitoring a dispensing process of a liquid drug with a drug delivery device involves gradually increasing a motor drive current for a motor of the drug delivery device; measuring, by a sensor, a position or movement of an output member movable by the motor; determining a minimal motor drive current required to initially move the output member from standstill; and determining, from an evolution of successively determined minimal motor drive current values, a delivery device operation status.

Disclosed is a flow detector (1) for releasable coupling with a flow channel (20) in a channel coupling area and detecting a flow of liquid drug in the flow channel (20), the flow detector including: an upstream thermoelectric element (10a) and a downstream thermoelectric element (10b), wherein the upstream thermoelectric element (10a) and the downstream thermoelectric element (10b) are arranged spaced apart from each other and movable independent from each other; an upstream biasing element (15a) and a downstream biasing element (15b), wherein the upstream biasing elements (15a) acts on the upstream thermoelectric element (10a), thereby biasing the upstream thermoelectric element (10a) towards the channel coupling area, and the downstream biasing element (15b) acts on the downstream thermoelectric element (10b), thereby biasing the downstream thermoelectric element (10b) towards the channel coupling area independently from the upstream biasing element (15a).

A method of operating an infusion pump includes transmitting light through or around a drop of fluid suspended from an end of a drip tube for the infusion pump, the end of the drip tube located in a drip chamber for the infusion pump, wherein the drip tube is configured for connection to a source of the fluid; receiving, using an optical system for the pump, light transmitted through or around the drop; transmitting, to a specially programmed microprocessor and using the optical system, data regarding the received light; and, using the microprocessor to calculate a volume of the drop using the data.