A system for injecting includes a syringe body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the syringe body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the syringe body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.

A glass syringe barrel is provided that has an at least partially conically shaped upper portion and a longitudinal axis. The glass syringe barrel has a top end through which a liquid can be ejected and a bottom end into which a plunger stopper can be pushed. The glass syringe barrel includes, in a direction from the top end to the bottom end, a cone, a shoulder region, and a body region. The shoulder region has and outer contour that has a concave and substantially circular arc-shaped area c.sub.1 with an outer radius r.sub.1. The outer contour of the glass syringe barrel in the shoulder region is defined by a certain minimum value the radius of curvature.

A glass syringe barrel is provided that has an at least partially conically shaped upper portion and a longitudinal axis. The glass syringe barrel has a top end through which a liquid can be ejected and a bottom end into which a plunger stopper can be pushed. The glass syringe barrel includes, in a direction from the top end to the bottom end, a cone, a shoulder region, and a body region. The shoulder region has and outer contour that has a concave and substantially circular arc-shaped area c.sub.1 with an outer radius r.sub.1. The outer contour of the glass syringe barrel in the shoulder region is defined by a certain minimum value the radius of curvature.

A method may include receiving, from a volume meter at a pump configured to deliver medication to a patient, data indicative of a volume of a medication present in a syringe inserted in the pump. A first counter may be updated, based on the data, in response to the medication being delivered to the patient as a first dose type. A second counter may be updated, based on the data, in response to the medication being delivered to the patient as a second dose type. The volume of the medication delivered to the patient may be determined based on the first counter and/or the second counter. An electronic alert may be sent to a mobile device in response to one or more anomalies being present in the volume of the medication delivered to the patient. Related methods and articles of manufacture, including apparatuses and computer program products, are also disclosed.

Syringes are described herein. A syringe includes a syringe body, a first plunger, a biasing member, and a retention member. The syringe body defines a syringe cavity and a syringe port, wherein the syringe port is in fluid communication with the syringe cavity. The first plunger comprises a first plunger shaft extending from the first plunger, the first plunger disposed within the syringe cavity and defining a first chamber in the syringe cavity, wherein the first chamber is in fluid communication with the syringe port. The biasing member is coupled to the first plunger shaft, wherein the biasing member urges the first plunger to advance toward the syringe port. The retention mechanism prevents the biasing member from advancing the first plunger in an engaged position and permits the biasing member to advance the first plunger in a released position.

A sensor assembly for an injection device may include a housing and/or a mechanical interface. The housing may include a sensor and/or a wireless communication device. The sensor may be configured to detect a movement of a component of the injection device associated with an injection operation of the injection device. The wireless communication device may be configured to communicate, to a computing device, information associated with the movement of the component of the injection device. The mechanical interface may be configured to attach the housing to an exterior surface of the injection device. A system may include the sensor assembly and the injection device.

A disposable, single-dose delivery device for self-administration by a patient of a predefined amount or dose of drug from a reservoir through an outlet of the reservoir includes a device operation lock to prevent a delivery operation of the delivery device as shipped to the patient, an embedded electronic control unit with a wireless receiver for receiving an unlock command or message, and an electromechanical actuator for mechanically unlocking the device operation lock and enabling delivery device operation by the patient. The control unit is configured to activate the actuator instantaneously and unconditionally upon receipt of the unlock command. The unlocking mechanism of the delivery device is adapted to be activated from remote in response to a confirmative message indicative of additional double check by a Health Care Professional HCP or expert system.

The present disclosure relates to medicament injection devices. An injection device includes: a movable dosage programming component comprising a rotary encoder system having a predefined angular periodicity, a sensor arrangement including a first optical sensor configured to detect movement of the movable dosage programming component relative to the sensor arrangement during dosing of a medicament, wherein the first optical sensor is configured to operate in a strobe-sampling mode at a first frequency, a second optical sensor configured to detect movement of the rotary encoder system relative to the second optical sensor wherein the second optical sensor is configured to operate in a strobe-sampling mode at a second frequency lower than the first frequency, and a processor arrangement configured to, based on the detected movement, determine a medicament dosage administered by the injection device.

A drug delivery device for sequentially delivering a predefined plurality of fixed doses, wherein the drug delivery device comprises a housing assembly, a drive mechanism comprising a drive tube and adapted to sequentially deliver the predefined plurality of doses, and an activation mechanism for activating the drive mechanism. The drive mechanism further comprises a pre-strained torsional drive spring (108, 208) conserving an initial amount of energy, and adapted for rotating the drive tube, wherein each activation of the drive mechanism, and completion of a drive tube dose sequence reduces the amount of conserved energy in the drive spring, and wherein the initial amount of conserved energy, which is the conserved energy before the first activation, is sufficient to deliver the predefined plurality of fixed doses.

A wireless data communication circuitry for a drug delivery device is disclosed, wherein the circuitry comprises a wireless communication processor for handling wireless data communication, a battery connector having a positive and a negative terminal, the positive terminal and the negative terminal being connected to respective terminals of the wireless communication processor for supplying the wireless communication processor with electrical energy from a battery connectable to the battery connector, and an arrangement of one or more capacitors, each one of the capacitors being connected in parallel to the positive terminal and the negative terminal of the battery connector and provided for backing up the supplying of the wireless communication processor with electrical energy from the battery connectable to the battery connector.