Abstract: A liquid drug transfer device for use with an injection vial which includes a vial adapter having a puncturing cannula for puncturing a vial stopper and a fluid transfer port in flow communication with the puncturing cannula. The vial adapter includes set-up vial retention flex members for vial retention purposes in a set-up position without puncturing an injection vial and activation vial retention flex members for vial retention purposes in an activation position puncturing the injection vial.

Abstract: A status of a battery operated infuser may be detected by measuring a controlled input parameter. The measurement may be used to determine a magnitude of the input parameter and a parameter of the control. For example, control of power input to a motor may be by pulse density modulation. An integral of current over time may serve as a measure of current magnitude and pulse density. The result of the integral may be used to determine the status of the injector. The status may include normal functions for example start of pumping and/or malfunctions such as occlusion or drive disengagement.

Abstract: A method and apparatus are disclosed for delivery of a drug to a recipient. In some embodiments, the delivery apparatus may unseal a drug containing reservoir. In some embodiments, the delivery rate may be controlled and/or adjustable. Optionally the apparatus may be disposable. Optionally, the apparatus may have a low profile and/or be wearable and/or attachable to the recipient. Optionally, discharge of the drug and/or unsealing of the reservoir may be driven by a plunger moving parallel to the base of the apparatus. Optionally, the apparatus may release a hypodermic needle into the recipient. Optionally, release of the hypodermic needle may be in a direction non-parallel and/or orthogonal to the direction of movement of the plunger. Optionally, prior to release, the hypodermic needle may be preserved in an aseptic state by a needle opening septum sealing a needle opening. Optionally, upon release, the hypodermic needle may pierce the needle opening septum.

Abstract: Apparatus is described for administering a substance to a subject. A vial contains the substance and a stopper is disposed within the vial and is slidably coupled to the vial. A first threaded element is (a) rotatable with respect to the vial and (b) substantially immobile proximally with respect to the vial during rotation of the first threaded element. A second threaded element is threadedly coupled to the first threaded element. At least a distal end of the second threaded element is substantially non-rotatable with respect to the vial, and the distal end of the second threaded element defines a coupling portion that couples the second threaded element to the stopper. The first threaded element, by rotating, linearly advances the stopper and at least the distal end of the second threaded element toward a distal end of the vial. Other embodiments are also described.

Abstract: Dual vial adapter assemblages similar to U.S. Pat. No. 6,558,365 to Zinger et al. and U.S. Pat. No. 8,752,598 to Denenburg et al. and including a quick release drug vial adapter with an upright finger grip extension pair oppositely for manually urging inwards towards one another for releasing same from a drug vial. The quick release drug vial adapter ensures correct usage of a dual vial adapter assemblage by preventing immediate removal of a drug vial adapter from a drug vial after forming a liquid drug therein thereby assisting a healthcare provider to follow an administration protocol requiring an initial aspiration of some liquid drug for immediate administration purposes to a patient prior to subsequent infusion of the liquid drug remainder.

Abstract: Liquid drug transfer devices with universal drug vial adapters for use with a drug vial of a small drug vial and a large drug vial. Some universal drug vial adapters employ the same generally opposite upright flex members for clamping a small drug vial and a large drug vial. Other universal drug vial adapters include a set of minor flex members for clamping a small drug vial and a set of major flex members encircling the set of minor flex members for clamping a large drug vial whereupon the large drug vial underlies the set of minor flex members. Liquid drug transfer devices with a universal injection port connector for attachment on an injection port of an infusion bag.

Abstract: A drug container closure for mounting on an open-topped drug container to form a ready-to-use drug reconstitution assemblage for use with a needleless syringe. The drug container closure includes a drug container stopper for sealing the drug container and a fluid transfer member with an integral needleless syringe connector and a puncturing cannula. The fluid transfer member is manually disposed along a diametric inverted L-shaped track pair from an initial non-puncturing position to a puncturing position. The inverted L-shaped track pair includes one-way snap members to prevent a user returning the fluid transfer member to an earlier position and indicating progress of the user activation.

Abstract: Liquid drug transfer devices employing manual rotation of a drug vial adapter with respect to a liquid container adapter for dual flow communication step actuation for establishing flow communication between a liquid container containing liquid contents and an initially intact, namely, non-punctured, drug vial. Manual rotation compacts a liquid drug transfer device along a longitudinal device axis for urging a puncturing tip through a drug vial stopper during a drug vial flow communication step for flow communication with a drug vial interior. Manual rotation also executes a liquid container flow communication step for flow communication with a liquid container, therefore establishing flow communication between a drug vial and a liquid container.

Abstract: An assembly for coupling a drug delivery device to a cartridge is disclosed. Optionally the assembly includes a coupling, for example a cannula, having one end extending toward the cartridge. The cartridge is optionally aligned by a guide. Optionally the cartridge has a limited freedom of movement. The coupling is optionally supported by a mount. In some embodiments, the mount is compliant enough that the end of the coupling that extends toward may move to said limited freedom of movement under a force less than a leak threshold of the connection between the coupler and the cartridge.

Abstract: Apparatus is described for administering a substance to a subject. A vial contains the substance and a stopper is disposed within the vial and is slidably coupled to the vial. A first threaded element is (a) rotatable with respect to the vial and (b) substantially immobile proximally with respect to the vial during rotation of the first threaded element. A second threaded element is threadedly coupled to the first threaded element. At least a distal end of the second threaded element is substantially non-rotatable with respect to the vial, and the distal end of the second threaded element defines a coupling portion that couples the second threaded element to the stopper. The first threaded element, by rotating, linearly advances the stopper and at least the distal end of the second threaded element toward a distal end of the vial. Other embodiments are also described.

Abstract: An apparatus (110) includes an activation mechanism (20) and a safety latch (122). The activation mechanism is operative to deploy a needle (116) to protrude out of a housing (112), the needle (116) having a longitudinal axis. The safety latch (122) is movably mounted on the housing (112) and formed with a needle opening (129) to allow the needle (116) to pass therethrough. The safety latch (122) has a first position wherein the needle (116) is aligned to pass through the needle opening (129) and a second position wherein the safety latch (122) is moved with respect to the housing (112) such that the needle (116) is blocked from movement in a direction parallel to the longitudinal axis thereof by a portion of the safety latch (122) distanced from the needle opening (129).

Abstract: A method is disclosed for state sensing and controlling of a multi-state drug delivery device. In some embodiments a power switch is reused as a state sensor. Optionally the state sensor may be toggled by user actions and/or the movements of parts of the device, for example needle and/or a protective element. Optionally, drug discharge and/or status indication is controlled in accordance with sensor output. In some embodiments control is by means of a processor. Alternatively or additionally, control is by means of simple physical circuits.

Abstract: An assembly of a drug delivery system, comprising: a first component; a second component which is configured to move linearly with respect to the first component; and, a resistance element configured to resist linear movement during transport of the first component with respect to the second component in a closed transport configuration but which is adapted to be overcome during nominal operation of the drug delivery system.

Abstract: A system may regulate voltage supplied from a power source to an integrated circuit and/or an inertial device. A minimal voltage may be maintained in the integrated circuit by temporarily cutting off current to the inertial device to supply surges of voltage to the controller. Optionally voltage may be smoothed between said surges for example by adding capacitance and/or a current restrictor.