A dispensing device for use with a beneficial agent has a dispensing package, a dispenser disposed on an end portion of the dispensing package, and an actuator movably disposed along at least a portion of the package between a pre-dispensing state and a dispensing state. One arrangement also provides a beneficial agent dispenser having a dispensing port, an elongate portion and a plunger that is movably disposed relative to a tubular wall of the elongate portion during a dispensing stroke to partially penetrate a separable barrier and expel the beneficial agent through the dispensing port.

A dispensing device for use with a beneficial agent has a dispensing package, a dispenser disposed on an end portion of the dispensing package, and an actuator movably disposed along at least a portion of the package between a pre-dispensing state and a dispensing state. One arrangement also provides a beneficial agent dispenser having a dispensing port, an elongate portion and a plunger that is movably disposed relative to a tubular wall of the elongate portion during a dispensing stroke to partially penetrate a separable barrier and expel the beneficial agent through the dispensing port.

A system for serially injecting liquids includes a syringe body, proximal and distal stopper members disposed in the syringe body, a first liquid in a distal chamber, a second liquid in a proximal chamber, a plunger member, and a needle hub assembly coupled to a distal needle interface of the syringe body. The plunger member includes a needle retention feature disposed in a plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. 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. Manipulating the plunger member to insert the proximal stopper member distally relative to the syringe body initially expels the first liquid, then the second liquid. The needle is at least partially retractable into plunger interior.

One aspect relates to a device for mixing a polymethyl methacrylate bone cement formed of two starting components and for storing the starting components of the bone cement. The device has a tubular cartridge with a cylindrical interior. A powder is contained in a front of the cartridge and a container containing a monomer liquid is arranged in a rear of the cartridge. A discharge piston is arranged between the container and the powder, and a conveying piston is on the side of the container opposite the discharge piston. The discharge piston and the conveying piston are arranged in the interior of the cartridge movably in the longitudinal direction. A conduit is provided that connects the front part and the rear part of the interior of the cartridge to one another in a manner permeable for the monomer liquid and for gases and which is impermeable for the powder.

A cartridge for use with a beneficial agent delivery device having a fillable reservoir. The cartridge includes a reconstitution, unit dose package having first and second compartments, and a fitment. The first compartment contains at least a first constituent of the beneficial agent. The second compartment contains at least a second constituent of the beneficial agent. The fitment is disposed on the package for interfacing the package to the fillable reservoir.

A drug delivery device is provided for delivering a drug to a target tissue site. The drug delivery device comprises a body comprising a proximal end and a distal end and a chamber disposed therebetween. An upper portion is disposed about the proximal end of the body. A retaining member is disposed within a wall of the body and engageable with the chamber and a plunger is configured for disposal within the upper portion and the chamber. The upper portion is movable about the proximal end of the body to open the chamber such that the plunger is disposed within a passageway defined within the chamber, and movement of the plunger in a distal direction pushes the retaining member such that the drug moves out of the body. Methods are also disclosed.

A system for serially injecting liquids includes a syringe body, proximal and distal stopper members disposed in the syringe body, a first liquid in a distal chamber, a second liquid in a proximal chamber, a plunger member, and a needle hub assembly coupled to a distal needle interface of the syringe body. The plunger member includes a needle retention feature disposed in a plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. 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. Manipulating the plunger member to insert the proximal stopper member distally relative to the syringe body initially expels the first liquid, then the second liquid. The needle is at least partially retractable into plunger interior.

A drug delivery device is provided for delivering a drug to a target tissue site. The drug delivery device comprises a body comprising a proximal end and a distal end and a chamber disposed therebetween. An upper portion is disposed about the proximal end of the body. A retaining member is disposed within a wall of the body and engageable with the chamber and a plunger is configured for disposal within the upper portion and the chamber. The upper portion is movable about the proximal end of the body to open the chamber such that the plunger is disposed within a passageway defined within the chamber, and movement of the plunger in a distal direction pushes the retaining member such that the drug moves out of the body. Methods are also disclosed.

The present disclosure relates to a administration assembly for a medicament delivery device, comprising: an elongated tubular delivery member cover (7), a cartridge holder (11) configured to be received by the delivery member cover (7) and configured to accommodate a medicament cartridge (31), the cartridge holder (11) having a radially flexible and radially inwards extending cartridge blocking protrusion (11b) configured to prevent the medicament cartridge (31) from moving proximally until being subjected to a proximally directed force larger than a threshold value, a needle assembly (13) comprising a double-edged needle having a proximally extending needle portion (13a) and a distally extending needle portion (13b), wherein the needle assembly (13) is configured to be assembled with the cartridge holder (11) so that the distally extending needle portion (13b) extends into the cartridge holder (11), and an administration mechanism including a plunger rod (27) configured to be proximally biased, wherein the delivery member cover (7) is configured to be linearly displaced in the distal direction relative to the cartridge holder (11), and wherein the delivery member cover (7) is configured to activate the administration mechanism when moved in the distal direction, causing the administration mechanism to move the cartridge holder (11) in the proximal direction and to subsequently move the plunger rod (27) in the proximal direction inside the cartridge holder (11) with a force larger than the threshold value.

A method of delivering epinephrine includes placing a distal end surface of a medical injector into contact with a target location of a patient. The medical injector includes a housing, an energy storage member, and a medicament container containing a dose of epinephrine effective for administration to the patient experiencing anaphylaxis and having a weight of less than 15 kg. The medicament container is coupled to a needle. The medical injector is actuated such that the energy storage member produces a force to move the needle from a first needle position to a second needle position. A distal tip of the needle extends from the distal end surface by a distance of between 7 millimeters and 8 millimeters when the needle is in the second needle position. A portion of the force is exerted to expel the dose of epinephrine when the needle is in the second position.