Abstract: A dose delivery device is disclosed wherein a dose can be set by rotating a dose setting member, whereby a push button (4) is elevated from one end of the device a distance proportional to the set dose from a position fixed relative to the housing, and wherein the set dose can then be injected by pressing the push button back to its non-elevated position, through which motion a piston rod will move approximately the same distance. The invention provides a method of forcing a numbered scale drum to rotate both during dose setting and injection to allow the user to read the remaining dose at any time during setting and injecting a dose.

Abstract: The invention concerns an injection device for apportioning set doses of a drug from a reservoir to a subject. The injection device comprises a housing having an interior thread formed as an outwardly pointing thread carried on an upstanding tower centrally located in the injection device. The outwardly pointing thread forms a first thread connection with an interior thread of a rotatable scale drum. The injection device further comprises a driver for moving a piston rod forward when moved axially. The driver operates the piston rod through a second thread connection having a pitch different than the first thread connection.

Abstract: The present invention relates to an injection device comprising a torsion spring operatively connected to a dose setting member being adapted to set a dose to be ejected from the injection device. A rotatably mounted display member adapted to display the dose to be ejected in accordance with a setting of the dose setting member is also provided. The rotatably mounted display member is adapted to be rotated over an angle corresponding to at least one revolution of the display member. The display member may be implemented as a dose indicator barrel having numerals arranged along a helical path on an outer surface thereof, or alternatively, as a counting device having two or more display wheels having numerals arranged on an outer surface thereof.

Abstract: The present invention relates to an injection device comprising a torsion spring operatively connected to a dose setting member being adapted to set a dose to be ejected from the injection device. A rotatably mounted display member adapted to display the dose to be ejected in accordance with a setting of the dose setting member is also provided. The rotatably mounted display member is adapted to be rotated over an angle corresponding to at least one revolution of the display member. The display member may be implemented as a dose indicator barrel having numerals arranged along a helical path on an outer surface thereof, or alternatively, as a counting device having two or more display wheels having numerals arranged on an outer surface thereof.

Abstract: An injection device for injecting a medicament includes a housing, a dose setting member (20) movable to set a dose to be injected, and a signal part (7). The signal part rotates from a first rotational position to a second rotational position to increase loading on a spring or spring arm when a dose is set due to rotation of the dose setting member. An internal pressure builds up in the injection device during injection which results in the signal part being captured in the second rotational position between first and second internal parts of the injection device. After the internal pressure dissipates by a sufficient amount during injection, the signal part rotates under the urging of the loaded spring from the second rotational position back to the first rotational position. A portion of the signal part moves into contact with a surface when the signal part reaches the first rotational position to produce tactile or audible feedback indicating that an end of dose condition has been reached.

Abstract: A dose setting mechanism for an injection device having a rotatably operated dose setting member, a presetting member being operable to limit the maximum dose settable by the dose setting member, and a first stopping member is operatively connected to the presetting member where the position of the first stopping member indicates the preset maximum dose. The first stopping member is adapted to rotatably engage with a second stopping member when the preset maximum dose has been set, thereby preventing setting of a further dose. The first and/or the second stopping member is/are movable along with the dose setting member, the first and second stopping members thereby being moved into engagement when a dose is set. Thereby a dose can be preset and the preset dose can easily be repeatedly set while ensuring an accurate dosage. The contemplated device can aid persons being visually impaired or having poor dexterity in setting a correct and accurate dose.

Abstract: An injection device having a housing, a dose setting member being operable to set a desired dose, a piston rod adapted to cooperate with a piston to cause a set dose to be expelled, and a mode locking member. The mode locking member is adapted to be in a first extreme position and in a second extreme position. When the mode locking member is in the first extreme position the piston rod is prevented from cooperating with the piston, and when the mode locking member is in the second extreme position the dose setting member is prevented from being operated to set a dose. The mode locking member is adapted to be in the first extreme position during dose setting and the second extreme position during injection of a set dose.

Abstract: The present invention relates to a dial-down mechanism for an injection device comprising a torsion spring for assisting injection of a dose of medicament from the injection device, the dial-down mechanism comprising a ratchet arm (21) engaging a ring element (10) and a reset element (30) which acts on a knob located on the periphery of the ratchet arm (21) to move the ratchet arm (21) out of engagement with the ring element (10) in order to allow the set dose to be reduced.

Abstract: An injection device (1) with an End-of-Content mechanism. The End-of-Content mechanism comprises a track (91) and a track follower each coupled directly or indirectly to the housing and the dose setting member (20). When setting a dose, the housing and the dose setting member is rotated relatively to each other thereby also rotating the track-follower in the track a distance corresponding to the size of the set dose. This relative rotation is summarized and stored in the position of the track follower in the track. The housing containing the mechanism is preferably equipped with a transparent (71) area through which a user can inspect the position of the track follower in the track and thereby get a visible warning when the drug reservoir in the injection device is about to be emptied.

Abstract: An injection device for injection of set doses of medicine from a cartridge, in which syringe a dose is set by screwing a nut up along a threaded piston rod, whereby a dose setting drum, which carries on its cylindrical surface along a helix a scale of which a number corresponding to the set dose is shown in a window in the housing of the syringe, and an injection button, which is elevated over the end of the syringe, are moved axially a distance which is larger than the axial movement of the nut. A gear wheel gear transmission is established between the nut and the injection button.

Abstract: A medication dispensing device with a housing and a member wherein the member is moveable in a distal direction is useful in delivering medication to a patient. A fluid container can be used with the device and often has a moveable piston at one end and an outlet at the other. The member receives a force from a user and drives the piston in the distal direction to expel medication. An intermediate system is disposed between the member and the piston including a gear set that has a pinion in meshed engagement with a rack. The system allows the member to move a greater distance than the piston moves thereby increasing the force on the piston.

Abstract: The invention relates to a gearing mechanism for a dose delivery device wherein the dose can be set by rotating a dose setting member (2, 102), and by which the dose setting member (2, 102) and a push-button (4) elevates from one end of the device proportional to the set dose from a position fixed relative to a housing (1, 101), and by which an injection of the set dose can be done by pressing the push-button back to its not elevated position, moving a piston rod (10, 110) cooperating with the piston in an cartridge (12, 112) and expelling a medicament out of the through a needle. The gearing mechanism is arranged in the device in such a way, that the loss of energy is very low.

Abstract: The present invention relates to an injection device comprising a torsion spring operatively connected to a dose setting member being adapted to set a dose to be ejected from the injection device. A rotatably mounted display member adapted to display the dose to be ejected in accordance with a setting of the dose setting member is also provided. The rotatably mounted display member is adapted to be rotated over an angle corresponding to at least one revolution of the display member. The display member may be implemented as a dose indicator barrel having numerals arranged along a helical path on an outer surface thereof, or alternatively, as a counting device having two or more display wheels having numerals arranged on an outer surface thereof.

Abstract: A medical delivery system comprising a container and a coupling mechanism movable between a coupling position wherein distal movement of a drive mechanism is transferred to an actuator, and a non-coupling position wherein distal movement is not transferred to the actuator. Moreover the present invention relates to a dosing assembly for use in the medical delivery system and a container for use in the medical delivery system. Finally, the present invention relates to medical delivery system comprising a dosing assembly having means for preventing a drive stem of the dosing assembly from being moved in a distal direction.

Abstract: An injection device for injecting a dose of drug, e.g. insulin for diabetes treatment, in which energy is stored in a spring member during dose setting. The stored energy is released and used for driving an injection mechanism during injection of a previously set dose. The injection device further comprises means for electronically detecting the amount of a set dose and/or means for electronically detecting the amount of an injected dose. The electronic detecting means allows storage and/or logging of data relating to injections performed using the injection device.

Abstract: A dosing assembly (204) and/or a container (202) comprising fastening means (206,208) for fastening the container to the dosing assembly, the fastening means of the dosing assembly and/or the container defining an asymmetrical pattern in a plane transverse to an axial direction of the dosing assembly and/or a container.

Abstract: The invention concerns an injection device for apportioning set doses of a drug from a reservoir to a subject. The injection device comprises a dose setting member (20, 70) which is screwed out from the housing (30) to set a dose and pushed axially back to the housing (30) in order to expel the set dose. A scale drum (80) is axially and inrotatable coupled to the dose setting member (20, 70) such that the scale drum (80) is rotated up a thread (34) when the dose setting member (20, 70) is rotated to set a dose. When the dose setting member (20, 70) is pushed axially back to its initial position to inject the set dose, the scale drum (80) is released from its inrotatable connection in order to allow the scale drum (80) to rotate down the thread (34) and back to its zero position.

Abstract: The invention relates to a gearing mechanism for a dose delivery device wherein the dose can be set by rotating a dose setting member (2, 102), and by which the dose setting member (2, 102) and a push-button (4) elevates from one end of the device proportional to the set dose from a position fixed relative to a housing (1, 101), and by which an injection of the set dose can be done by pressing the push-button back to its not elevated position, moving a piston rod (10, 110) cooperating with the piston in an cartridge (12, 112) and expelling a medicament out of the through a needle. The gearing mechanism is arranged in the device in such a way, that the loss of energy is very low.

Abstract: An injection device with a gearing arrangement providing a gearing ratio between axial movement of an injection button and axial movement of a piston rod. The injection device comprises a dose setting member being operable to set a dose by rotating the dose setting member relatively to a housing, about a rotational axis. During setting of a dose the gearing arrangement is prevented from rotating along with the dose setting member about the rotational axis. Thereby the space which it is necessary to accommodate to the gearing arrangement inside the housing is reduced. This provides the possibility of using this space for other purposes, such as additional electronic components, designing the injection device in a manner which is appropriate for other purposes, e.g. with a relatively flat cross section, or reducing the overall size of the injection device. According to one aspect of the invention, the gearing arrangement comprises at least one gear wheel having a rotational axis which is non-parallel to, e.g.

Abstract: The present invention relates to a dial-down mechanism for an injection device comprising a torsion spring for assisting injection of a dose of medicament from the injection device, the dial-down mechanism comprising dial-up cam arranged to receive and engage with a dial-up key, wherein the dial-up cam and the dial-up key are adapted to, upon rotation of a dose setting member in a first direction, cooperate to strain the torsion spring of the injection device, and a dial-down cam arranged to receive and engage with a dial-down key, wherein the dial-down cam and the dial-down key are adapted to, upon rotation of the dose setting member in a second direction, cooperate to release the torsion spring of the injection device, the second rotation direction being opposite to the first rotation direction.