A gasket pressing tool includes a syringe attachment member attached to an outer tube, a gasket pressing member that presses a gasket of a syringe, a pressing member biasing body accommodated in the gasket pressing member, a biasing body pressing tubular member that accommodates a rear end portion of the pressing member biasing body and has side portions provided with opening portions, and movement restriction members of the pressing member held by the tubular member and having engagement protrusions that enter through the opening portions of the tubular member. The pressing tool has an engaged state maintaining function for the engagement protrusion of the movement restriction member and the pressing member-side engagement portion of the pressing member, and an operation function for the engagement protrusion for releasing the engagement therebetween.

A fluid delivery device comprises a fluid reservoir for containing medicament. The fluid reservoir is sealed proximate one end with a sliding seal piston. A delivery path is configured to fluidly couple the fluid reservoir and a patient wearing the fluid delivery device. A basal engine mechanism is configured to directly or indirectly move the sliding seal piston in the fluid reservoir at a controlled basal rate. A bolus mechanism configured to move the basal engine relative to the fluid reservoir and directly or indirectly move the sliding seal piston in the fluid reservoir a discrete bolus amount at a time.

A system comprises a first member, a second member, and a third member, wherein the first and second members are rotatable relative to the third member, wherein the first and second members are coupled to one another by a dead-angle follower coupling, wherein the dead-angle follower coupling is configured such that the first and second members are rotatable relative to one another, wherein the second and third members are rotationally coupled to one another by a switchable coupling mechanism, wherein the switchable coupling mechanism is switchable between two different states, a locked state and a non-locked state, wherein the maximum torque transferable between the second and third members via the switchable coupling mechanism in the locked state is greater than in the non-locked state, wherein the switchable coupling mechanism is in the locked state when the first member is in a locking position relative to the second member.

Methods for using precision low-dose, low-waste syringe configurations, which may have a reduced diameter lumen for dispensing 0.01 ml increments of contents. Methods may employ ergonomic attachments that improve the control and precision of the syringe. An attachment main body includes a gripping surface to permit a user to engage the attachment and move the attachment main body, and thus the syringe plunger relative to the syringe barrel using sliding movement. Methods may employ an assist feature on the attachment, which may be a traction wheel. Methods for using syringes with contents of higher viscosity may employ a pair of toothed pinion gears on a wheel and which cooperate with respective toothed racks formed on or fastened to the syringe body.

A collar for reinforcing a barrel outlet spout of an applicator, syringe or the like, the barrel having a substantially cylindrical main body, with the outlet spout at one end thereof, wherein the collar includes: a spout engagement portion; and a main body engagement portion.

A portable self-administrable medication delivery device with End of Life feature includes a housing, a drive member within said housing, a locking element and a medicine filled container. The device further provides a Partial Dose Prevention feature to deliver an accurate amount of dose with precision. The device is capable of delivering multiple doses of a liquid medicament contained therein without the need of priming the injector prior to administration and allows for repeated administration of a dose of medicament in a simple, easy, safe and accurate manner.

The present disclosure relates to an injection device configured to expel a dose of a medicament, the injection device comprising: an elongated housing extending in a longitudinal direction, a piston rod movable relative to the housing in a longitudinal distal direction to exert a dispensing pressure onto a bung of a cartridge at least partially filled with an injectable medicament, a rod extension movably arranged on or in a distal end of the piston rod, a driver operably engaged with the piston rod and movable relative to the housing in a longitudinal proximal direction for setting of the dose and movable relative to the housing in the longitudinal distal direction for dispensing of the dose, and an adjuster arranged on or in the driver and operably engaged with the rod extension to move the rod extension in longitudinal direction relative to the piston rod.

A drive train (T) for a wind-up injection device (1) for injecting a liquid drug comprises a torsional energy storage (9) adapted to be loaded or unloaded by a rotatable element (6), a rotatable user handle (8), a rotationally driveable expelling mechanism (5) adapted to expel the liquid drug and a clutch element (12) coupled with the torsional energy storage (9) via the rotatable element (6) and comprising a ratchet (12.4) for maintaining the rotatable element (6) at one of a number of discrete angular positions against the torque of the torsional energy storage (9). The clutch element (12) is adapted to transmit a torque from the user handle (8) via the rotatable element (6) to the torsional energy storage (9) or alternatively from the torsional energy storage (9) via the rotatable element (6) to the expelling mechanism (5), wherein the ratchet (12.4) is switchable from one position to an adjacent position by a torque transmitted from the user handle (8) to the torsional energy storage (9). The drive train (T) is adapted to dampen torque peaks visco-elastically and/or visco-frictionally.

An injection device for setting and injecting a dose of a medicament comprises an elongated housing extending along a longitudinal axis, a piston rod to operably engage with a piston of a cartridge filled with the medicament, a clutch comprising a hollow interior and configured to be rotated in a first direction relative to the housing during setting of a dose and to be rotated in a second direction relative to the housing during delivery of the dosea driver configured to follow a rotational movement of the clutch in the second direction during delivery of the dose, the piston rod being operably engaged with the driver and configured to be displaced along the longitudinal axis relative to the housing when the driver rotates in the second direction, and a retainer configured to prevent a rotational movement of the driver relative to the housing in the first direction during setting of the dose.

A fluid delivery device comprises a fluid reservoir for containing medicament. The fluid reservoir is sealed proximate one end with a sliding seal piston. A delivery path is configured to fluidly couple the fluid reservoir and a patient wearing the fluid delivery device. A basal engine mechanism is configured to directly or indirectly move the sliding seal piston in the fluid reservoir at a controlled basal rate. A bolus mechanism configured to move the basal engine relative to the fluid reservoir and directly or indirectly move the sliding seal piston in the fluid reservoir a discrete bolus amount at a time.