A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.

An electronic insulin delivery device receives glucose data from a glucose monitor and sets a bolus dose amount. The device may take the form of an insulin pen with automatic priming and accurate dosing provided by a motor in connection with an encoder. The device may communicate with and be controlled by a smart phone device. The smart phone device provides a user interface to receive user data including patient weight, insulin to carbohydrate ratio and exercise factor, and to send instructions to the device, including dose amount. The dose amount is determined taking into account glucose level and trend, and other factors. The delivery device may be in continuous communication with the glucose monitor and smart phone to provide for near real-time adjustments in glucose treatment. Glucose data, insulin injection data, and other relevant data may be stored and accessible to interested parties.

This disclosure provides a method of determining a cartridge type of a cartridge used with a fluid drug injection system having a pump that receives a fluid drug cartridge. The fluid drug cartridge has a barrel filled with a fluid drug solution and a plunger within the barrel that forces the fluid drug solution through an outlet. An actuator of the pump is moved to contact or to move the plunger and a force sensor is used to measure force data during the movement. The force data is descriptive of the force applied to the plunger. A feature signal is determined from the force data. The feature signal can be a force modulation amplitude, a force modulation duration or a force modulation number. The cartridge type is assigned using the feature signal. Also disclosed is a fluid drug injection system and a cartridge for use therewith.

A wearable medical device may be unpacked, prepared, and/or used while being grasped with a single hand position. For example, the device may be removed from a package, primed, and/or adhered to the skin of a user while being grasped with the single hand position. Optionally, the device may be used with a single hand. Optionally, the device includes a delivery interface (for example, including a needle tip and/or a skin contact surface). Optionally, the device includes a protector that preserves sterility of the delivery interface. Optionally, the cover can be removed with a single hand. Optionally, removal of the cover is performed with the same hand position as placement of the device on a delivery site.

A method of dispensing a therapeutic fluid from a line includes providing an inlet line connectable to an upstream fluid source. The inlet line is in downstream fluid communication with a pumping chamber. The pumping chamber has a pump outlet. The method also includes actuating a force application assembly so as to restrict retrograde flow of fluid through the inlet while pressurizing the pumping chamber to urge flow through the pump outlet. A corresponding system employs the method.

A medical device system is disclosed. The medical device system includes a first medical device and a second medical device. A remote interface including a touch screen is also included. The remote interface is in wireless communication with the first medical device and the second medical device. The remote interface is configured to provide a user interface to the first medical device and the second medical device. The remote interface is configured to receive user input through a touch screen. Also, a charging device is included. The charging device is configured to receive at least the first medical device and the remote interface and the charging device is configured to recharge a first medical device battery and the charging device is configured to recharge an interface battery in the remote interface. The charging device is connected to a personal computer wherein the personal computer provides information to the remote interface.

An infusion pump system is disclosed. The infusion pump system includes an infusion pump and a controller device in wireless communication with the infusion pump, wherein the controller including instructions for controlling the infusion pump, wherein the instructions may be synchronized with a secure web portal.

A patch pump including a medicament reservoir having an inner surface defining an elongate piston engagement pathway, an electric motor having a rotary drive output element, a piston replaceably axially fixed to the electric motor. The piston having an outer surface arranged for sealing engagement with the inner surface of the medicament reservoir, the piston also including a rotary to longitudinal drive converter receiving a rotary drive input from the rotary drive output element of the electric motor and providing a longitudinal drive to the reservoir, thereby driving the medicament reservoir in longitudinal motion relative to the piston in which the elongate piston engagement pathway defined by the inner surface of the medicament reservoir is displaced axially and in sealing engagement with the outer surface of said piston.

A system for priming an intravenous line includes a closed system transfer device having a first connector and a second connector, a connector device having a first connector and a second connector, a collection device having a first connector, a cannula having a distal end, and a sleeve having a first position where the distal end of the cannula is positioned within the sleeve and a second position where the distal end of the cannula is positioned outside of the sleeve, and at least one collection container having a closure. The collection container defines a volume having a negative pressure, with the cannula of the collection device configured to pierce the closure of the collection container.

A system is disclosed. The system includes a reservoir for containing a fluidic medium, the reservoir including a front surface, a resilient cylindrical flexure portion connected to the front surface, the resilient cylindrical flexure portion comprising an accordion-like structure that is able to expand and contract to change an interior volume within the resilient cylindrical flexure portion, a central passageway within the resilient cylindrical flexure, and a collection chamber connected to the central passageway. Also, a system including a reservoir, a plunger head located within the reservoir, a plunger arm connected to the plunger head, a driving shaft connected to the plunger arm, and a motor connected to the driving shaft, the motor controllable to move the drive shaft in a first motion and a second motion so as to move the advance plunger head and retract the plunger head within the reservoir.