A dispensing device is disclosed which provides for dispensing multiple doses in amounts determined by a movable collar attached to a plunger shaft.

A dispensing device is disclosed which provides for dispensing multiple doses from a cylindrical volume. An actuator button moves a tooth to engage a series of links which move a stopper to dispense the doses.

The invention relates to a medical injection device having polymeric housing. The housing comprises a moulded outer housing element and a moulded ring-shaped unitary element. The ring-shaped unitary element carries a pointer and a thread segment in predetermined and correlated positions. The pointer points to indicia on a scale drum and the thread segments guides the scale drum. The outer housing element is moulded over the unitary element to form one single component.

The pharmaceutical injection device includes a pharmaceutical syringe mounting portion (3) provided within a main body case (2) and to which a pharmaceutical syringe (4) is removably mounted, a piston (5) provided movably with respect to the pharmaceutical syringe (4) mounted to the pharmaceutical syringe mounting portion (3), a drive mechanism (6) for driving the piston (5), a controller (7) that is electrically connected to the drive mechanism (6), a display section (35) that is connected to the controller (7), and an encoder (26) that is connected to the controller (7) and detects the amount of the pharmaceutical remaining inside the pharmaceutical syringe (4). The controller (7) displays a warning on the display section (35) recommending removal of the pharmaceutical syringe (4) from the pharmaceutical syringe mounting portion (3) when the presence of a pharmaceutical is detected by the encoder (26).

Drive and metering devices for injection devices include a dose display element with a helical dosage scale; an indicating means; a metering member, which can be rotated relative to the indicating means for dose setting; a discharge spring and an advancement member. The dose display element can be screwed relative to the indicating means about a longitudinal axis (L) and a value on the dose scale can be read via the indicating means corresponding to the set dose. The discharge spring causes the advancement member to discharge the product as it moves an overall discharge stroke length (Hg), where the overall discharge stroke length (Hg) comprises a first partial discharge stroke length (H1), during which the dose display element is rotationally secured in relation to the indicating means and where the dose display element can be rotated relative to the indicating means following the first partial discharge stroke length (H1).

The present disclosure is generally directed to a resettable drug delivery device for selecting and dispensing a number of user variable doses of a medicament. The drug delivery device comprises a housing, a cartridge holder, releasably attached to the distal end of the housing, a piston rod, engaging a housing insert and a drive member, a dose setting member, guided within the housing to allow rotation of the dose setting member during dose setting and dose dispensing, and a clutch for rotationally coupling the drive member and the dose setting member. The housing insert is rotationally constrained to the housing and is axially movable together with the drive member relative to the housing between a dose setting and dispensing position, and a resetting position. In the dose resetting position. the drive member is rotationally de-coupled from the housing.

A medication delivery device, for use with a container having a distal end and a needle being placed at the distal end of the container, including: a push rod which is movable with respect to at least a portion of the container; a resilient member configured to bias the push rod to move toward the distal end of the container; a releasable restraining means configured to releasably restrain the push rod in a locked state against the biasing of the resilient member; a means to adjust amount of movement of the push rod with respect to the container in order to deliver a predetermined dose of medication; and an activation means configured to release the releasable means. The means to adjust amount of movement of the push rod with respect to the container is bi-directional. The device can accommodate containers of different size or shape.

Add-on module (100) for logging the value of an expelled dose from a pen-type drug injector (200), comprising a magnetic sensor system comprising first and second sensor means (745/746) as well as a mechanical dose setting and expelling mechanism comprising a magnetic clutch element (240/740) which rotates during drug expelling. The system further comprises processor means configured to determine (i) on the basis of measured values from the first sensor means, a rotational position of the clutch element, (ii) on the basis of measured values from the second sensor means, a high-speed condition in which the rotational speed of the clutch element exceeds a given threshold level, and (iii) indicate an error state if the high-speed condition is detected.

A device for administering a fluid can include a cylinder, a piston connected to a piston rod, and a tensioning device connected to the piston rod. In a dispensing procedure a ramp track is rotated until the roller runs over a transfer region and is accelerated toward the first plateau and, as a result, the piston is moved toward an open dispensing end. A motor is connected to the ramp via a coupling. To rotate the ramp, the coupling transmits torque provided by the motor in the first rotation direction and, in the process, provides a freewheel counter to the first rotation direction. The freewheel is configured such that it covers at least a rotation angle range which corresponds to the transfer region.

An autoinjector having a reservoir (110); a piston (111); a needle (112); a driver module having a body (201); a piston rod (210) movable between rest position and injection positions; an injection spring (220); and a lock that blocks the piston rod in its rest position. The lock ha a thread (230) connected to the piston rod and to a toothed winder wheel (240), a locking member (260) co-operating with a tooth (241) of the toothed winder wheel, the locking member (260) movable between a blocking position preventing the winder wheel from turning in the direction of actuation force (Fa) exerted by the injection spring, and an actuated position allowing turning of the winder wheel. The autoinjector includes a re-cocking mechanism (400) for rewinding the thread on the winder wheel by turning the winder wheel in the opposite direction to its direction during the injection stage.