Abstract: Injection devices are disclosed for injections of substances. The disclosed devices separately may hold two separate substances, e.g., solid, liquid or gas substances, in separate compartments which are interrupted so that the separate substances come into contact during the activation of the device. One disclosed device includes a needle for injection and two substances that are mixed with only a few actions by the operator of the device. The device may or may not activate mixing by the removal of a sleeve which triggers compartment interaction through movement of pins, pegs, springs, wires, string, or other mechanisms which allow the materials held in separate chambers to come into contact with each other. Operator error during mixing and checking the dosage of substances to be injected is avoided with the disclosed devices. Also, the needle is maintained in a sterile state because the needle is held internally of the device until the sleeve is removed and the device begins to activate.

Abstract: A one-part reconstitution device is described, for temporarily separating two substances into two compartments within a cartridge or syringe and allowing for mixture of the two substances within the cartridge or syringe. In various embodiments, the one-part reconstitution device may include an outer, contact portion configured to contact an inner surface of the cartridge or syringe, and an inner, deflection portion positioned within the contact portion. The deflection portion may be movable from a locked position, in which the deflection portion causes the contact portion to exert a first radial force against the inner surface, to an unlocked position, in which the deflection portion causes the contact portion to exert a second radial force against the inner surface. The second radial force may be less than the first radial force, and the contact portion and the deflection portion may comprise one part.

Abstract: An apparatus comprises a plunger able to fit in a cartridge or syringe. The plunger includes an outer portion and a deflection portion. The outer portion is able to engage the body of the cartridge or syringe. The outer portion is operable to apply a first radial force to the cartridge or syringe. The deflection portion is positioned within the outer portion and is movable between a locked position and an unlocked position. The deflection portion in the unlocked position causes the outer portion to apply a second radial force to the cartridge or syringe.

Abstract: An apparatus comprises a plunger able to fit in a cartridge or syringe. The plunger includes an outer portion and a deflection portion. The outer portion is able to engage the body of the cartridge or syringe. The outer portion is operable to apply a first radial force to the cartridge or syringe. The deflection portion is positioned within the outer portion and is movable between a locked position and an unlocked position. The deflection portion in the unlocked position causes the outer portion to apply a second radial force to the cartridge or syringe.

Abstract: An apparatus comprises a plunger able to fit in a cartridge or syringe. The plunger includes an outer portion and a deflection portion. The outer portion is able to engage the body of the cartridge or syringe. The outer portion is operable to apply a first radial force to the cartridge or syringe. The deflection portion is positioned within the outer portion and is movable between a locked position and an unlocked position.

Abstract: A one-part reconstitution device is described, for temporarily separating two substances into two compartments within a cartridge or syringe and allowing for mixture of the two substances within the cartridge or syringe. In various embodiments, the one-part reconstitution device may include an outer, contact portion configured to contact an inner surface of the cartridge or syringe, and an inner, deflection portion positioned within the contact portion. The deflection portion may be movable from a locked position, in which the deflection portion causes the contact portion to exert a first radial force against the inner surface, to an unlocked position, in which the deflection portion causes the contact portion to exert a second radial force against the inner surface. The second radial force may be less than the first radial force, and the contact portion and the deflection portion may comprise one part.

Abstract: Injection devices are disclosed for injections of substances. The disclosed devices separately may hold two separate substances, e.g., solid, liquid or gas substances, in separate compartments which are interrupted so that the separate substances come into contact during the activation of the device. One disclosed device includes a needle for injection and two substances that are mixed with only a few actions by the operator of the device. The device may or may not activate mixing by the removal of a sleeve which triggers compartment interaction through movement of pins, pegs, springs, wires, string, or other mechanisms which allow the materials held in separate chambers to come into contact with each other. Operator error during mixing and checking the dosage of substances to be injected is avoided with the disclosed devices. Also, the needle is maintained in a sterile state because the needle is held internally of the device until the sleeve is removed and the device begins to activate.

Abstract: Injection devices are disclosed for injections of substances. The disclosed devices separately may hold two separate substances, e.g., solid, liquid or gas substances, in separate compartments which are interrupted so that the separate substances come into contact during the activation of the device. One disclosed device includes a needle for injection and two substances that are mixed with only a few actions by the operator of the device. The device may or may not activate mixing by the removal of a sleeve which triggers compartment interaction through movement of pins, pegs, springs, wires, string, or other mechanisms which allow the materials held in separate chambers to come into contact with each other. Operator error during mixing and checking the dosage of substances to be injected is avoided with the disclosed devices. Also, the needle is maintained in a sterile state because the needle is held internally of the device until the sleeve is removed and the device begins to activate.