The present disclosure relates to an injection device, in particular a micro dose injection device such as, for example, an ophthalmic injection device. An example device comprises a rotatable plunger; a solution receptacle having a first end configured to slidably receive the rotatable plunger and a second end configured to dispense solution contained in the solution receptacle; a first stop member configured to prevent the rotatable plunger from being slidably displaced to a second position while the rotatable plunger is at a first position and in a first orientation; and a second stop member configured to prevent the rotatable plunger from rotating in a first direction about the first axis while the rotatable plunger is at the first position and in the first orientation, wherein slidably displacing the rotatable plunger from the first position to the second position dispenses a quantity of the solution contained in the solution receptacle.

The present disclosure relates to relates to medication injection devices, and in particular to systems and methods for on-demand delivery of a non-liquid medication from a wearable medication injection device. Particularly, aspects of the present invention are directed to a device that includes a housing defining a chamber, a piston disposed within the chamber, a needle disposed within the chamber on a first side of the piston, an energetic material disposed within the chamber on a second side of the piston, and a medication strip disposed within the needle. The medication strip includes an injectable substance in a non-liquid form.

A dosing syringe comprising a barrel and a piston is provided. The piston is slidably receivable in the barrel and can move within the barrel from a maximum inserted position to a withdrawn position to draw a dose of a product into the barrel. The syringe comprises means for pre-setting the withdrawn position, which defines a maximum dose which can be drawn into the barrel.

A syringe includes a dosage setter operatively coupled to a plunger rod and comprising a rotatable body that comprises a set of one or more stops for engaging the set of one or more protrusions of the plunger rod depending on at least a rotational position of the set of one or more stops relative to the set of one or more protrusions, wherein a first rotational adjustment associated with the dosage setter is configured to set a first dosage increment by adjusting a relative axial position between the rotatable body and the plunger rod, and a second rotational adjustment associated with the dosage setting assembly is configured to set a second dosage increment that is larger than the first dosage increment by adjusting a relative rotational alignment between the set of one or more stops and the set of one or more protrusions.

A dosing syringe including a hollow cylindrical body and a plunger slidable within the hollow cylindrical body. The dosing syringe includes at least one slider slidable within a distal flange of the hollow cylindrical body transversely to the hollow cylindrical body and at least one wall is formed in the plunger for abutting and blocking the slider during its sliding within the flange, wherein the at least one wall provides a mechanical stop which stops the stroke of the plunger at a predetermined volume of product to be aspirated and/or dispensed.

A set of at least two drug delivery devices includes a first drug delivery device and a second drug delivery device, The first and second drug delivery devices each include a first set of mutual members that are identical, and the first drug delivery device and the second drug delivery device each include a second set of distinguishing members that differ. The first drug delivery device includes a first connection device for attaching a first dispensing unit to the first drug delivery device and the second drug delivery device includes second connection device for attaching a second dispensing unit to the second drug delivery device, the first and second connection devices differ from each other so that the second dispensing unit is not attachable to the first connection device and the first dispensing unit is not attachable to the second connection device.

A device for administering a fluid can include a cylinder, a piston displaceable in the cylinder and connected to a piston rod, and a tensioning device connected to the piston rod. The tensioning device includes a ramp rotatable via a motor, and a ramp track extending along a helical line. The tensioning device includes a roller which is in contact with the ramp track. To perform a tensioning procedure, the ramp track is rotated such that the roller runs on the region of inclination as far as the second plateau so the piston is moved to its rear end position. To perform a dispensing procedure, the ramp track is rotated until the roller runs over a transfer region and is accelerated toward the first plateau, thereby the piston is moved toward an open dispensing end. A control unit determines whether the tensioning procedure and/or dispensing procedure has taken place correctly.

A substance delivery device for delivering a substance from a container includes a body, and a plunger movable with respect to the body so as to expel at least a portion of a substance from the container, a trigger mechanism, a latch member latched in a stationary position at least along the longitudinal axis of the device before use, and a lockout shroud movable along the longitudinal axis relative to the latch mechanism. User manipulation of the trigger mechanism causes the latch mechanism to become unlatched and move along the longitudinal axis and to cause movement of a plunger relative to the body, and in a first position of the lockout shroud along the longitudinal axis relative to the latch member, the lockout shroud prevents the trigger mechanism from unlatching the latch member, whereas in a second position the lockout shroud allows the trigger mechanism to unlatch the latch member.

A kit is disclosed for accurately loading a small volume dose of a medication within a syringe and for delivering the small volume dose of the medication at a treatment site. The kit generally includes a loading and delivery system in accordance herewith, a syringe, and a medication. The loading and delivery system includes a syringe delivery ring and a syringe loading guide, which may be used for example, to administer a small volume dose of a medication at the end of an ocular surgery.

Single use hydraulic drive devices and single use large volume injectors are described. A method for single use hydraulic drive including releasing a holding device to move a catalyst coated portion of a rod into a reagent filled chamber, generating pressure in the chamber due to at least one of gas creation and thermal expansion from a chemical reaction between the catalyst coated portion and the reagent, hydraulically displacing a movable object in hydraulic communication with the chamber, and stopping further chemical reaction when the pressure exceeds a holding device force threshold to enable the holding device to re-hold a retracted catalyst coated portion of the rod outside of the chamber. The self-regulating pressure in the chamber enables a controlled rate of hydraulic displacement of the movable object.