A syringe device for ejecting a dose of a medicament, the syringe device comprising: a dose limiting mechanism arranged to interact with a dose ejecting mechanism to prevent ejection of a dose exceeding a set dose, and a safety mechanism, which is arranged such with respect to the dose ejecting mechanism that, if the dose limiting mechanism fails, the safety mechanism prevents ejection of a dose exceeding the set dose.

The invention relates to an injection device for injecting a liquid drug. The injection device comprises a housing assembly supporting a non-removable cartridge having an interior chamber containing the liquid drug to be injected and a reusable needle cannula connected to the cartridge. A needle shield assembly provided with a cleaning chamber containing a volume of a cleaning agent for cleaning at least the distal tip of the needle cannula between subsequent injections is further provided. The needle shield assembly is axially movable in a proximal direction in relation to the housing assembly from a first position to a second position upon rotation of at least a part of the needle shield assembly, wherein the first position is a position in which the distal tip of the needle cannula is located inside the cleaning chamber thereby cleansing the distal tip of the needle cannula, and the second position is a position in which the distal tip of the needle cannula is located outside and distal to the cleaning chamber for equalizing the pressure in the cartridge.

A supplementary device configured to be releasably attached to a distal end of a drug delivery device. The supplementary device comprising primary electronics, a non-contact acceleration sensor and a low power processor. The non-contact acceleration sensor is directed towards a proximal end of the drug delivery device and the low power processor is configured to: receive the signals output from the non-contact acceleration sensor; determine based on the signals that an outer needle cap of the drug delivery device has been removed; and in response to determining that an outer needle cap of the drug delivery device has been removed, send a wake-up signal to the primary electronics of the supplementary device.

A method and device for delivering medications that includes a syringe body, a cartridge nest with an application tip, a plunger actuator, and an electronic lock subassembly adapted for preventing administration of the medication until specific conditions are met. The medicine cartridge may comprise a form of a digital security key and/or physical security to prevent the device from administering medication unless specific configurations and conditions are met. The device may further be adapted with pre-programmed information and may be used with a smartphone, tablet, or computer application. The electronic lock subassembly will only permit the administration of medicine when the patient and/or administrator is verified via facial and voice recognition, biometric identifier, or other unique information. Upon proper permission and/or use of uniquely-keyed and matched components, the device may be used to administer medicine, including injecting medicine into the nasal cavity of a patient.

The present invention concerns a drug delivery device with an electric brushless DC or stepper motor. A novel approach to motor control uses the micro-stepping technique in combination with over-revving the commutation of the stepper motor and reversing the rotor for a small number of microsteps with each delivery cycle. This approach has the effect of keeping the elasticity of the drive train behind the plunger in a relaxed state after completing a delivery cycle, providing better control of the movement of the rotor. Loss of steps can be avoided for a wide range of friction or speed situations, increasing the accuracy of drug delivery and making tracking of the rotor position and detecting loss of steps a much better parameter to detect blockage or occlusion. The increased controllability allows to substantially increase the motor speed for delivery, resulting in an optimum of energy efficiency while still ensuring reliable operation.

The present invention relates to a monitoring device (10) arranged to be operably connected to a medicament delivery device (12), said medicament delivery device (12) comprising a manually operated movable dose activation element (20), said monitoring device (10) comprising an electronic circuit (42), said electronic circuit (42) comprising an optical sensor (68), wherein said optical sensor (68) is positioned in relation to said dose activation element (20) so as to detect a manual operation of said dose activation element (20) from an initial position; said electronics circuit further comprising a vibration sensor (70), wherein said vibration sensor (70) is positioned in relation to said medicament delivery device so as to detect specific vibration spectra produced by the medicament delivery device when said dose activating element (20) is operated, wherein said electronic circuit (42) comprises computing elements capable of correlating the information from the optical sensor (68) with the information from the vibration sensor (70) when said dose activation element (20) is operated in order to register when a correct dose has been set.

A syringe use monitoring device that can attach to a syringe and detect the type of medication being loaded and measure the force applied to the plunger and thus monitor subsequent delivery of medication and delivery pressure as a substance is being injected, and at least one display and/or alarm can indicate normal and/or abnormal conditions so that feedback can be employed during the injection process is provided.

A drug delivery apparatus including a barrel to contain a substance, a piston slidable in the barrel, a supply circuit to provide input currents, an antenna affixed along the barrel to receive the input current, generate inductance with the piston, and provide output currents commensurate with a position of the piston along the piston course, and processing circuitry configured to receive the output currents, and determine a quantity of the substance inside the barrel based on the output currents.

Syringe attachments and syringes have particular suitability to the precision dispensing of small amounts of high viscosity materials, such as dermal fillers. An attachment may include a main body having an assist feature that includes a wheel and pinion gears on each side of the wheel which engage respective racks on the syringe body. A mechanical advantage may be provided to the user as the wheel is rotated relative to the syringe body and racks. Syringes and attachments may include precision position indicators viewed from multiple positions to enable a user to determine plunger position and the amount of dispensed contents with precision. An alternative configuration attachment may be slidably secured to a syringe to permit a user to operation the syringe from a lateral position using sliding movement of the thumb and fingers of one hand, for example. This configuration may be particularly suitable for self-administered insulin injections.

Proposed is a system for operating a syringe. The system includes an apparatus for operating a syringe in which a syringe filled with one or more fluids is mounted and that includes a motor configured to selectively discharge the one or more fluids filled in the syringe by moving forward and backward a piston of the syringe, and a controller configured to control movement of the piston of the syringe through the motor, in which the controller moves the piston to follow a predetermined motion on the basis of a set mode when recognizing a request to operate or stop the apparatus for operating a syringe.