A drug delivery device is provided that includes an on-board controller to determine when proper placement on the patient's body has occurred as well as an amount of drug delivered to the patient. The controller can also be used to determine if and when the proper placement has been disturbed during drug delivery and/or if less than a full dose of the drug has been dispensed.

A fluid delivery injector comprises a syringe defining a barrel; a plunger and a hollow needle provided within the barrel adapted for linear movement parallel to a longitudinal axis with a distal tip of the needle contained within the syringe. A fluid retention reservoir is defined at least in the barrel and is in fluid communication with the needle when pressure is applied to the fluid in the reservoir and to the plunger for moving the needle out of the barrel. A spring may be provided for retracting the needle when pressure is released from the plunger.

A microneedle injection and infusion apparatus, and a method of using same. The apparatus can include a housing, a microneedle array holder for holding a microneedle array, and a shuttle that holds a cartridge (e.g., that contains an active agent). The microneedle array holder can be movable between a retracted position and an extended position. The shuttle can be movable between a first position in which the cartridge is not in fluid communication with a fluid path and a second position in which the cartridge is in fluid communication with the fluid path. The apparatus can further include an actuator movable between a first position and a second position. The method can include moving the actuator to its second position to allow the shuttle to move toward its second position, wherein movement of the shuttle toward its second position allows the microneedle array holder to move to its extended position.

A microneedle injection apparatus comprising an inverted actuator. The apparatus can include a housing having a base and a cavity, and a microneedle array holder configured to hold a microneedle array within the cavity of the housing. The microneedle array holder can be movable between a retracted position, and an extended position. The apparatus can further include an actuator movable with respect to the housing and the microneedle array holder between a first position and a second position to cause the microneedle array holder to move from the retracted position to the extended position. At least a portion of the actuator can be located on a skin-facing side of the apparatus (e.g., adjacent the base of the housing) and can be configured to be moved from the first position to the second position in response to the apparatus being pressed toward the skin surface.

A medicament delivery device may comprise a medicament chamber configured to hold a medicament, a plunger configured to move relative to the medicament chamber to expel the medicament from the medicament chamber, a pin configured to move from a first pin position wherein the pin prevents movement of the plunger to a second pin position wherein the pin allows movement of the plunger, an actuation assembly configured to move the pin from the first pin position to the second pin position, and a needle coupled to the medicament chamber. The medicament may flow through the needle from the medicament chamber to a user. The actuation assembly may be configured to automatically move the pin after a predetermined time delay.

A syringe, comprising: a barrel, comprising a needle accommodating-cavity and a plunger accommodating-cavity; a pull-back element, accommodated in the needle accommodating-cavity, wherein a needle is mounted on the pull-back element; a plunger, disposed in the plunger accommodating-cavity and movable between pushed-in and pulled-out position, wherein a head portion of the plunger enters the cavity of the pull-back element proximate to the plunger accommodating-cavity and is engaged therein in the pushed-in position; a biasing force structure, disposed in the cavity of the pull-back element and/or the head portion of the plunger, wherein the head portion of applies a biasing force on the pull-back element through the biasing force structure, and when the head portion is moved to the pulled-out position, the biasing force structure causes the pull-back element and the needle to tilt with respect to the axis of the barrel through the biasing force.

A medicament delivery device is presented having a housing, a plunger rod biased in a proximal direction of the medicament delivery device, a plunger holder radially engaging the plunger rod, and wherein the plunger holder has a radial recess, an inner body arranged radially outside the plunger holder and provided with a radially flexible gripping member that engages with the radial recess to hold the plunger holder in a fixed axial position, and a movable sleeve that moves axially in the housing from a first position to a second position, wherein the movable sleeve has a blocking wall which in the first position is arranged radially outside the gripping member and which is prevented from flexing radially outwards by a radially inwards directed force applied onto the blocking wall by the housing, thereby preventing the gripping member to flex radially outwards and disengage from the recess.

A syringe includes a dosage chamber, which has a dispensing opening and a plunger opening. A plunger is located in the dosage chamber and is movable within the dosage chamber to enable partial withdrawal of the plunger from the dosage chamber through the plunger opening to draw medicine from a medicine container through the dispensing opening into the dosage chamber. The plunger is also movable towards the dispensing opening to dispense the dosage of medicine. The plunger has an open end to receive the medicine container and a plunger chamber sized to house the medicine container. A retainer secures the medicine container within the plunger chamber, and an identifier identifies information corresponding to at least one property of the medicine drawn from the medicine container.

A medication administration device is provided. The device has a flexible tube having an administration end, an activation end and a lumen between the ends. An administration assembly is attached to the administration end. An activation assembly is attached to the activation end. A syringe is disposed within the lumen. The syringe contains the medication and has a first end and an opposite second end. A plunger is disposed within the lumen and operatively connected to the first end of the syringe. A rupturable seal is provided to the second end of the syringe, which end is approximate to the administration end. The activation assembly activates the plunger to break the rupturable seal to establish a fluid communication between the second end of the syringe and the administration assembly. Accordingly, transportation of the medication from the syringe to the medication administration assembly through the medication administration end is allowed.

A medical safety needle is comprised of a needle body having a needlepoint, a covering body having a detent portion slidable on the needle body to catch the needlepoint so as to cover the needlepoint, and a resilient cantilever supporting the detent portion, a sleeve following the covering body to cover a side face of the needle body, a collar portion slidably fitting on the covering body, which is configured to get in contact with the cantilever to press the cantilever radially inwardly, and a housing being formed in a unitary body with the collar portion or having an end face on which the collar portion is capable of being seated, the housing being configured to carry the covering body from a first position to have the needlepoint exposed to a second position to have the needlepoint covered by the covering body.