A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes at least one optical sensor assembly configured to sense the movement of the pump assembly, a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.

A mechanical infusion pump device for injecting medication into a patient's IV, includes an IV reservoir and a syringe communicated to the IV reservoir and having a syringe plunger which is moved in a first direction against a mechanical biasing element by engagement with a manually operable, independently movable filling plunger to fill the syringe with fluid medication. The mechanical biasing element is provided for exerting bias on the syringe plunger in a second syringe-discharging direction to dispense medication from the syringe into the patient's IV when the filling plunger is released. Only a calibrated amount of medicine can be discharged to the patent's IV over time as determined by calibration of the biasing element and a metering element located between the syringe and the patient's IV for a given viscosity of the medication.

A filling aid. The filling aid includes a needle housing portion including at least one tab having a starting position and a filling position, and a filling needle cradle including a filling needle, the filling needle cradle slidable connected to the needle housing portion and having a starting position and a filling position, wherein when the at least one tab on the needle housing moves from a starting position to a filling position, the filling needle cradle slides from a starting position to a filling position, and wherein when the at least one tab on the needle housing moves from a filling position to a starting position, the filling needle cradle slides from a filling position to a starting position.

A body-worn medication delivery pump having a patch form factor is provided that includes an integrated plethysmographic module that employs a photoplethysmographic multi-chip package disposed in a frame designed to maintain contact with a wearer's skin during motion, and reduces cross-talk and ingress of stray light, a controller of the pump programmed to adjust its medication delivery algorithms responsive to outputs of the plethysmographic module.

A system for delivery of a volume of infusible fluid. The system includes a controller configured to calculate a trajectory for delivering infusible fluid, the trajectory comprising at least one volume of fluid, and determine a schedule for delivering the at least one volume of fluid according to the trajectory, wherein the schedule comprising an interval and a volume of infusible fluid for delivery. The system also includes a volume sensor assembly for determining the at least one volume of fluid delivered, wherein the controller recalculates the trajectory based on the volume of fluid delivered.

A device introduced small volumes of fluid for delivery to a patient through a fluid line. The device includes a first arm adapted to receive a syringe and a second arm fluidly connected to an upstream reservoir that defines an internal volume adapted to receive a volume of fluid. The device includes a fluid obstruction mechanism configured to selectably block flow of fluid from the reservoir toward the patient, wherein the fluid obstruction mechanism transitions between a first state that permits fluid flow from the reservoir toward the patient and a second state that directs fluid flow from the syringe into the reservoir while blocking fluid flow from the reservoir toward the patient.

A fluid dispensing device includes a container coupled between a bottle and a discharge tube for forcing the fluid to flow through the discharge tube without gravity, a base member is disposed in the container, a housing is engaged in the container and movable toward and away from the base member, a spring biased plug controls the fluid to flow out of the housing, a cap and a casing are attached to the container, a spring biased valve piece is engaged in the casing for engaging with the cap and for controlling the fluid to flow through the cap, a magnetic member is attached to the casing, and a coil is attached to the container to act with and to move the magnetic member in the container.

The present invention relates to an apparatus for patient-controlled drug injection having a counter capable of counting the number of administrations. According to one aspect of the present invention, disclosed is an apparatus for patient-controlled drug injection having a counter, comprising: a case; a pressing part, provided in the case, for applying pressure to pump a chemical liquid; and a counter, provided in the case and having a counting button that is pressed by pressure when a user presses the pressing part, for counting the number of times that the pressing part is pressed.

A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.

A medical infusion fluid handling system, such as an automated peritoneal dialysis system, may be arranged to de-cap and connect one or more lines (such as solution lines) with one or more spikes or other connection ports on a fluid handling cassette. This feature may reduce a likelihood of contamination since no human interaction is required to de-cap and connect the one or more lines and the one or more spikes. For example, the automated peritoneal dialysis system may include a carriage arranged to receive the one or more lines each having a connector end and a cap. The carriage may move along a first direction so as to move the connector ends of the one or more lines along the first direction, and a cap stripper may be arranged to engage with the caps on the the one or more lines on the carriage. The cap stripper may move in a second direction transverse to the first direction, as well as to move with the carriage along the first direction.