The present invention relates to a cylinder pump including: a body part having a main body with a coupling groove formed thereon and a front body coupled to the main body by means of hinges; a cartridge detachably attached to the coupling groove of the body part; a driving part located inside the main body to operate the cartridge; a display part located on the front body to provide an interface necessary for the operation thereof; a controller for controlling the operation of the driving part; and an operating part for transmitting a user's operating signal or input information to the controller.

Embodiments of the present disclosure relate to techniques, processes, devices or systems for pump devices. In one approach, a wearable drug delivery device, may include a reservoir configured to store a fluid, the reservoir comprising a housing including an outer wall defining an interior chamber, and a drive mechanism for driving the fluid from the reservoir. The drive mechanism may include a plunger received in the interior chamber of the reservoir, a leadscrew extending from the plunger, and a clutch mechanism threadably engaged with the leadscrew, wherein the clutch mechanism is configured to allow the leadscrew to pass through the clutch mechanism when disengaged and is configured to grip the leadscrew when engaged such that the clutch mechanism rotates to advance the leadscrew and the plunger into the reservoir.

A method for performing a medical procedure requiring effective, reliable and foolproof delivery of controlled amounts of a medical grade gas to a patient includes providing a compressed gas cylinder having a weight with medical grade gas sealed therein of at least twelve grams and not greater than fifty grams. The method also includes connecting the compressed gas cylinder to an integrated compressed gas unit including a regulator valve assembly positioned between an outlet port and an inlet port, wherein the regulator valve assembly includes a press button actuator and regulator adjustment dial. A flow control system is secured to the compressed gas unit and the medical grade gas is delivered in precisely controlled amounts by actuating the compressed gas unit and operating the flow control system to deliver the medical grade gas to vasculature of the patient.

A method of dispensing fluid includes three processes. A first one of these processes includes pumping fluid into a resilient variable-volume dispensing chamber. The dispensing chamber is in series with a normally present finite fluid impedance and an output. The impedance is sufficient so as to cause expansion of the dispensing chamber as it receives pumped fluid even while some fluid flows through the output. Another one of these processes includes repeatedly measuring a parameter related to volume of the dispensing chamber over time. A third one of these processes includes controlling the pumping of fluid based on repeated measurements of the parameter to produce a desired fluid flow through the output. A corresponding system for dispensing fluid implements these processes.

In one aspect the present disclosure relates to a sensor for measuring at least one physical or chemical parameter of a cartridge filled with a liquid substance. In a further aspect the disclosure relates to a drug delivery device equipped with such a sensor, wherein the sensor includes a planar flexible foil having a first section and having a second section separated from the first section, at least one measurement electrode located on the flexible foil, wherein the flexible foil is wrappable into a wrapped configuration in which the foil forms at least a first wrap with an inner diameter that is equal to or larger than an outer diameter of the cartridge, wherein in the wrapped configuration the first section and the second section at least partially overlap, at least one fastener located in one of the first and second section and configured to attach to the other one of the first and second sections for keeping the flexible foil in the wrapped configuration.

A trigger arrangement for an infusion device is disclosed, the trigger arrangement being configured to trigger a bolus injection of the infusion device and including: a body having an outside surface, a haptic structure arranged on the outside surface or integrated into the outside surface, wherein the haptic structure includes a first end section and a second end section and wherein the haptic structure includes a haptic track extending from the first end section to the second end section, a touch sensitive sensor arrangement extending along the haptic track and configured to detect a sliding motion of an object along the haptic track.

Techniques related to advance diagnosis of operating mode viability are disclosed. The techniques may involve obtaining status information pertaining to operation of a fluid delivery device. The status information may include at least one of a group comprising recent sensor measurement data, sensor calibration data, blood glucose reference measurement data, fluid delivery data, a current battery level of the fluid delivery device, and a current amount of fluid remaining in the fluid delivery device. The techniques may further involve determining, based on the status information, viability of transitioning to a destination operating mode of the fluid delivery device. Additionally, the techniques may involve causing generation of one or more user notifications of recommended remedial actions to improve the viability of transitioning to the destination operating mode when transitioning into the destination operating mode is determined not to be viable.

Urine collection systems and associated methods and devices are disclosed herein. A representative system can include a urine collection device, a flow control assembly configured to direct a urine flow from the patient to the urine collection device, and a urine measurement device including a first sensor and a second sensor. The first sensor is configured to generate first sensor data based on a weight of the container, and the second sensor is configured to generate second sensor data based on the urine flow from the patient to the container. The system can further include non-transitory computer readable media having instructions that, when executed by one or more processors, cause the system to perform operations comprising determining a first patient urine output based on the first sensor data; and determining a second patient urine output based on the second sensor data.

A system for infusing medication into a mammalian subject is provided. The system includes an injection system for controlling a flow of fluid from a fluid reservoir to a needle. A sensor is provided that detects a characteristic indicative of the fluid pressure in the needle. The injection system controls the flow of fluid to the needle in response to the characteristic detected by the sensor and the sensor continuously detects the characteristic as the needle is inserted into the subject. The system further includes a conductive element for providing electric nerve stimulation, wherein the system provides electric nerve stimulation in response to the sensor detecting a pressure exceeding an upper limit.

A drug delivery device comprising a pumping system (4) and a liquid reservoir (7) fluidly connected to a delivery system outlet (12), the liquid reservoir comprising an elastic plunger (14) scalingly slidable within a container wall (13) of the liquid reservoir for expelling liquid out of the reservoir. The pumping system comprises a piston pump (5) comprising a plunger actuator arranged to displace the plunger (14), and a dosing unit (6) arranged downstream of the liquid reservoir (7) and fluidly connected to the liquid reservoir. The dosing unit (6) comprises a chamber portion (22) arranged between an inlet valve (24) and an outlet valve (26), the chamber portion (22) arranged to receive from the liquid reservoir a pump cycle volume of liquid under an operational pressure greater than ambient pressure generated by the piston pump, and to the deliver said pump cycle volume of liquid to the delivery system outlet, said pump cycle volume being dependent on the operational pressure.