Abstract: Embodiments may include a method of delivering a drug. The method may include removing or releasing a structure from a patch-pump assembly. The patch-pump assembly may include a sealed prefilled drug-reservoir, a fluid passageway, a cannula-containing assembly, and a penetrator. The method may also include penetrating the sealed prefilled drug-reservoir containing the drug to establish fluid communication between the sealed prefilled drug-reservoir and a fluid passageway by removing or releasing the structure. The method may further include flowing the drug from the prefilled drug-reservoir to the fluid passageway. In addition, the method may include flowing the drug from the fluid passageway to a cannula-containing assembly. Furthermore, the method may include delivering the drug subcutaneously to a subject using the cannula-containing assembly.

Abstract: The present invention provides a selectively activatable patch-pump assembly, said patch-pump assembly comprising: • a sealed prefilled drug-reservoir containing a drug to be delivered; • an associated conduit in connection therewith; • a selectively activatable penetrator which penetrates said sealed prefilled drug-reservoir and facilitates drug access to said conduit; and • a selectively activatable, associated, cannula-containing assembly for delivering a drug subcutaneously to a subject, in fluid connection with said conduit; wherein a selective activation-step initiates penetration of said sealed prefilled drug-reservoir, drug access from said drug-reservoir to said conduit, drug access from said conduit to said cannula-containing assembly and delivery from said cannula-containing assembly, thereby being a selectively activatable patch-pump assembly.

Abstract: Embodiments of the present invention provide drug-delivery devices comprising a drug reservoir chamber containing a substance to be delivered, in fluid connection with a drug administration means, and at least one displacement-generating battery cell coupled to said drug reservoir chamber by a coupling means, the at least one displacement-generating battery cell comprising an element that changes shape as a result of discharge of the battery cell so as to cause a displacement within the battery unit, the arrangement being such that the displacement derived from said battery unit is conveyed by said coupling means to cause displacement of at least a portion of a wall of said drug reservoir chamber reducing the volume of said drug reservoir chamber such that said substance is expelled from said drug reservoir chamber towards said drug administration means upon discharge, thereby being a self-powered drug delivery device.

Abstract: The present invention provides a drug delivery device comprising a drug reservoir chamber (15) containing a substance (16) to be delivered in fluid connection with a drug administration means (17) and (18), and a hydraulic control chamber (9) containing an electrically controlled, non-gassing, volume changing means (13), a coupling means (14) coupling said hydraulic control chamber (9) to said drug chamber (15), the arrangement being such that a change in the electrical control means (11) causes a change in the volume of the volume changing means (13), the volume change being conveyed by the coupling means (14) to the drug chamber (15) such that the substance (16) is expelled from the drug chamber (15) towards the drug administration means (17) and (18).

Abstract: The present invention provides an infusion-patch comprising; a cannula; a base; at least one adhesive region in said base suitable for skin attachment; at least one skin-access area within said base; and at least one conduit in fluid connection with said at least one skin access area, wherein said at least one conduit in fluid connection with said at least one skin access area facilitates the transfer of an anesthetic substance within at least a first anesthetic-reservoir which may be removably attached and in fluid connection with said at least one contact area, promoting delivery of said anesthetic substance to said at least one skin-access areas, and wherein said anesthetic substance delivered to said skin-access areas may be at least partially replenished without removing said in fusion-patch.

Abstract: The present application provides a drug-delivery device comprising a drug reservoir chamber 16, containing a substance to be delivered, in fluid connection with a drug administration means 18, and an electrically-controlled battery unit 10 comprising at least one displacement-generating battery cell 19 coupled to the drug reservoir chamber 16 by a coupling means 14, the arrangement being such that the displacement derived from the battery unit 10 is conveyed by the coupling means 14 to the drug reservoir chamber 16 such that the substance is expelled from the drug reservoir chamber 16 towards the drug administration means 18.

Abstract: Embodiments of the present invention provide drug-delivery devices comprising a drug reservoir chamber containing a substance to be delivered, in fluid connection with a drug administration means, and at least one displacement-generating battery cell coupled to said drug reservoir chamber by a coupling means, the at least one displacement-generating battery cell comprising an element that changes shape as a result of discharge of the battery cell so as to cause a displacement within the battery unit, the arrangement being such that the displacement derived from said battery unit is conveyed by said coupling means to cause displacement of at least a portion of a wall of said drug reservoir chamber reducing the volume of said drug reservoir chamber such that said substance is expelled from said drug reservoir chamber towards said drug administration means upon discharge, thereby being a self-powered drug delivery device.

Abstract: A drug-delivery device comprising a drug-reservoir assembly, displacement-generating actuator, and drug administration unit is described, wherein the drug-reservoir assembly comprises at least one flexible wall and a constraining ring, such that the displacement generated by the actuator collapses a flexible wall of the assembly expelling the drug contents of the drug-reservoir towards said drug administration means.

Abstract: A controllable drug delivery device for delivering a liquid injectable drug, the device comprising a drug reservoir (22), a drug administration device (28), a displacement-generating battery (20), and a current-depletion circuit (85), wherein displacement generated by the battery as current is depleted from the battery by the current depletion circuit displaces a wall of the drug reservoir thereby causing the reservoir to expel liquid injectable drug contained therein via the drug administration device, and wherein the drug delivery device further includes a controller (78) that is responsive to a measured parameter indicative of displacement generated by the battery for applying a variable load (80) across the battery in order to provide a substantially constant-current depletion of the battery and thereby cause the drug delivery device to deliver a substantially constant drug delivery rate.

Abstract: The present application provides a drug-delivery device comprising a drug reservoir chamber 16, containing a substance to be delivered, in fluid connection with a drug administration means 18, and an electrically-controlled battery unit 10 comprising at least one displacement-generating battery cell 19 coupled to the drug reservoir chamber 16 by a coupling means 14, the arrangement being such that the displacement derived from the battery unit 10 is conveyed by the coupling means 14 to the drug reservoir chamber 16 such that the substance is expelled from the drug reservoir chamber 16 towards the drug administration means 18.

Abstract: The invention provides a drug delivery infusion device comprising an injection means (18) in fluid connection with a drug reservoir chamber (12) and pressure-generation means (10) coupled to both the drug reservoir (12) and to a liquid-filled control chamber (13), wherein the coupling is such that the liquid-filled control chamber (13) serves to constrain the motion of the pressure-generation means (10), thereby controlling the drug infusion rate, wherein the liquid-filled control chamber (13) is associated with means for controlled depletion of the liquid therein whereby depletion of the volume of liquid in the control chamber enables the pressure-generation means to drive the drug in the reservoir chamber therefrom for infusion thereof.

Abstract: The present invention provides a drug delivery device comprising a drug reservoir chamber (15) containing a substance (16) to be delivered in fluid connection with a drug administration means (17) and (18), and a hydraulic control chamber (9) containing an electrically controlled, non-gassing, volume changing means (13), a coupling means (14) coupling said hydraulic control chamber (9) to said drug chamber (15), the arrangement being such that a change in the electrical control means (11) causes a change in the volume of the volume changing means (13), the volume change being conveyed by the coupling means (14) to the drug chamber (15) such that the substance (16) is expelled from the drug chamber (15) towards the drug administration means (17) and (18).