An automatic injection device for use with a syringe including at least one syringe piston and a needle coupled to a forward end thereof, comprising a housing element arranged along a longitudinal axis and having a forward end and a rearward end; at least one resilient element arranged to be located within the housing element; a needle shield selectably positionable with respect to the housing element; and a control unit adapted, when actuated, to be driven by the at least one resilient element for initially displacing the syringe relative to the housing element from a non-penetration position to a penetration position and thereafter displacing the at least one syringe piston in the syringe to effect drug delivery, and wherein the control unit is configured to be actuated upon axial rearward displacement of the needle shield with respect to the housing element.

A method for medicine administration and tracking and system for the same that may implement the method via a health management application running on a computing device includes tracking movement of an injection pen from a start location to a dispensing location, detecting a dispensing event of medicine dispensed from the injection pen at the dispensing location, determining a location of the dispensing location relative to a user's body, associating information relating to the detected dispensing event with information relating to the determined location, and providing feedback based upon the detected dispensing event information and the determined location information.

An apparatus includes a housing, a carrier, and an expandable assembly. The housing defines an opening configured to selectively place a gas chamber of the housing in fluid communication with an exterior volume. The carrier is movably disposed within the housing and is coupled to a medicament container. A proximal surface of the carrier defines a portion of a boundary of the gas chamber. The expandable assembly has a first member and a second member. The first member is coupled to an elastomeric member disposed within the medicament container, and the second member includes a valve portion. The expandable assembly transitions from a collapsed configuration to an expanded configuration when the elastomeric member moves within the medicament container. The valve portion moves relative to the opening when the expandable assembly transitions from the first to the second configuration, placing the gas chamber in fluid communication with the exterior volume.

A reciprocating medicament mixing and injector system, where the energy provided to transfer medicament components back and forth between containers or cartridges can be redirected to deliver the mixed medicament components. In one embodiment the energy source is a pressurized gas chamber, in another, it is constant force spring, and in another it is a compression spring.

An injector for delivering a therapeutic product may include a base having a flexible surface that conforms to various body contours of a patient and defines one or more an injection chambers. The injector may have a height that is substantially less than its width, thereby defining a low profile, which provides a larger more stable base that can pinch or stretch the skin in a controlled manner. The larger base can also accommodate larger volumes via multiple injection chambers and/or large combined primary containers.

An injection device for injecting a substance into a body, including a syringe having: a needle, a barrel, a stopper, a plunger rod, moveable from an initial position to a final position, a needle shield, moveable at least from a retracted position to a safety position, a locking unit, arranged to lock the needle shield into the safety position, a locking actuator moveable at least: from a non-actuating position, into which the locking unit is in an open mode, to an actuating position, into which the locking actuator is arranged to put the locking unit in closed mode so that the needle shield can be locked into the safety position.

A disposable safety syringe needle and a syringe device including the same are provided, which can prevent reuse and an accident in safety, in which injury can be sustained by the needle. The disposable safety syringe needle includes: an upper part to which an elastic member is coupled and in which a needle member is inserted; a lower part which is coupled to one end of the upper part, and which includes one or more catching parts; and a safety part which is coupled to one end of the lower part, and which includes a catching protrusion, wherein the safety part is inserted into the lower part toward the upper part so that the elastic member is compressed, and the catching protrusion of the safety part is coupled to the one or more catching parts by the stretching force of the elastic member so as to disable reuse.

A method includes moving an actuation lock of a medical injector from a first position to a second position. The actuation lock has an extended portion disposed between a shoulder of a housing and the base when the actuation lock is in the first position. The extended portion is spaced apart from the base when the actuation lock is in the second position. A distal end portion of a base, which is movably coupled to an end portion of the housing, is placed into contact with a body. The base is actuated after the placing to release an energy from an energy storage member within the housing to produce a force to move a needle from a first needle position to a second needle position. At least a portion of the needle extends through the base when the needle is in the second needle position.

The invention relates to a pre-filled injection device with a non-removable cartridge wherein the drive mechanics comprises a threaded piston rod which is moved helically in a nut secured to a housing structure. During assembly of the injection device it is possible to rotate the nut member to thereby advance the piston rod into a position eliminating any air-gap otherwise occurring between the piston rod and the plunger inside the cartridge

Injection systems comprising a powered injector and one or more hazardous agents are disclosed.