A shield activated drug delivery device for delivering a plurality of fixed doses comprising a housing, a drive mechanism comprising a drive element (180, 280) adapted to rotate and thereby rotate and axially advance a piston rod (109, 209), wherein the drive mechanism is adapted to expel a dose of the plurality of fixed doses, in response to activation. The injection device further comprises an activation mechanism, and a locking-and-resetting mechanism for releasably locking the shield in an activation position, in response to rotating the shield, and for inducing a rotational movement of the shield, in response to the drive element releasing a releasable lock.

The present invention relates to a finger grip (1) arranged to be connected to a syringe barrel having a plunger and a plunger rod for driving said plunger. The finger grip comprises a body having a lower side with finger supporting surfaces (13) for supporting fingers of a user during handling and an engagement member (5) being moveable between an inactive position where the engagement member is arranged not to engage with the plunger rod of the syringe barrel and an active position where the engagement member is arranged to engage with a grooved surface on the plunger rod of the syringe such that feedback is given to a user as the plunger is moved relative to the finger grip. An activation member (7) for moving the engagement member from said inactive position to said active position is built-in into the finger grip.

Various embodiments pertain to syringes having needles that automatically retract, and including syringe assemblies in which there is a means for damping any impact of the retracting needle, slowing the retracting needle, dissipating the kinetic energy of the needle, or the like, so as to lessen any jolt or disturbance experienced by the user.

The present invention relates to a medicament delivery device comprising a housing, an actuation mechanism (40) arranged inside said housing, the actuation mechanism comprising a plunger rod (42) arranged to act on a stopper (18) of a medicament container (16); an actuator (84) arranged slidable and connected to the plunger rod (42) for acting on the stopper (18) when said actuator (84) is operated by displacing it in a longitudinal direction of the actuation mechanism (40); an activator (104) rotatably arranged for activating said actuation mechanism and for setting a dose; said activator (104) comprising a generally tubular activator sleeve (148), said activator sleeve (148) comprises protrusions (150) arranged to interact with ledges (90) on said actuator (84) such that said activator sleeve (148) is rotated when said actuator (84) is operated. The invention is characterised in a first audio generating mechanism comprising audio generating elements (94) and said protrusions (150), which protrusions (150) are arranged to cooperate with said audio generating elements (94) for generating an audible signal after said operation for delivering a dose.

A multi-dose injector comprising an inner housing (16) and an outer housing (12), the inner housing (16) being movable within the outer housing for a defined distance, a plunger rod (20) comprising a shaft (66) mounted within the inner housing (16) the shaft (66) having a plurality of spaced apart teeth (68) formed thereon, an actuator (22) located at one end of the shaft (66), the inner housing (16) having at least one pawl (70) arranged to engage with the teeth (68), a syringe (74) mounted interiorly of the inner housing (16), the syringe being arranged such that the shaft engages with a plunger within the syringe, and a spring member (18), the spring member (18) being biased between the inner housing (16) and the outer housing (12).

A dispensing mechanism for delivering a dosage of medicament including a housing, a push button, a crank arm that is slideably engageable with the push button, a ram, and a ratchet gear releasably engageable with the crank arm and ram, translation of the push button along an axis causing the crank arm to engage and rotate the ratchet gear which causes the ram to distally advance relative to the housing.

A controlled delivery syringe device includes a syringe barrel having a proximal end and distal end which defines a chamber for containing an injectable material. A plunger rod is associated with the syringe barrel and a plunger is secured thereto which is axially movable within the syringe barrel. A plurality of equally and sequentially spaced periodic features are associated with the plunger rod and a counter member is engageable with the periodic features. Application of a distally directed force to the plunger rod results in disengagement and reengagement of the counter member with the sequentially spaced periodic features on the plunger rod, enabling advancement of the plunger rod and plunger in the syringe barrel while providing tactile feedback of dose progression of the injectable material. A method of retrofitting a syringe with a device for injecting a metered dose of injectable material is also provided.

A drug delivery device for delivering a dose of a medicament and a safety assembly for a drug delivery device, wherein the drug delivery device comprises a housing assembly, and a drive mechanism for delivering the dose, in response to activation. The drug delivery device further comprises an activation mechanism comprising a rotatable activation member (310), in response to an axial movement of the activation member, wherein the activation member (310) is adapted to be arranged in: (i) a first angular position, and (ii) a second angular position, wherein activation is allowed. The drug delivery device further comprises a ring member (390) as a part of a safety assembly. The ring member (390) is rotatable and axially splined to the activation member (310). Hereby, the ring member (390) is adapted to transfer a rotation to the activation member (310) from the first position to the second position, in response to a rotation of the ring member, whereby a user can rotate the activation member (310) without unintentionally activating the drive mechanism.

An incremental syringe useful for multiple injections of medications like botulinum toxin is provided. The syringe includes detents on the syringe plunger which provide a tactile feeling, a discrete audible sound or “click,” or preferably both, for every unit of medication aspirated or injected to or from an individual syringe. Hence, there is no need to look at the syringe, or bring it to the eye level, during use thereof. In some embodiments, a second set of detents is included, and in some embodiments a third set of detents is included. Syringe plungers useful for combining with a syringe body to produce such an incremental syringe are also described.

The invention relates to an injection device for ejecting a predetermined plurality of fixed doses. The doses are expelled by moving a needle shield (30) in the proximal direction which releases a pre-strained torsion spring (115) to eject one of the predetermined doses at the time. The injection device is further provided with a number of integrated needle assemblies (70) which one at the time are brought to an injection position. The needle change mechanism (80,90) operating the needle assemblies is controlled by rotation of the needle shield which is rotatable between a locked and an unlocked position.