A power pack for use with a medicament delivery device is presented having a plunger rod movable along a longitudinal axis; a drive spring operably connected to said plunger rod; a plunger rod sleeve arranged with holding elements for releasably holding said plunger rod with said drive spring in a tensioned state. Signal initiating elements are arranged to said plunger rod; and signal generating elements arranged to cooperate with said signal initiating elements for providing information to a user of a medicament delivery device about the movement of said plunger rod when said plunger rod sleeve has been activated to release said holding elements.

A medicament delivery device (100) for delivery of medicament from a container (12) into an injection site through a cannula (16). The device comprises a chassis (106), a drive mechanism (400) for driving a piston member (22) along a container axis (A) to expel the medicament through the cannula (16), and a carriage (200) for retaining the container (12), the cannula (16) and the drive mechanism (400). An insertion mechanism (70, 120, 130, 504) is provided for moving the carriage (200) in an insertion direction (H) relative to the chassis (106), and a cannula bending mechanism (300) is provided for bending the cannula (16) about a bending axis (B) to substantially align at least an end part of the cannula (16) with the insertion direction (H) prior to movement of the carriage (200) in the insertion direction (H).

The present disclosure relates to an assisted injection device for injecting a composition contained in a medical container. The injection device includes a main body adapted to receive a medical container in a fixed position relative to the main body. The main body includes an inner wall provided with a toothed surface. The injection device includes a piston. The piston includes a first part and a second part. The first part includes an inner spring-loaded piston rod, and an outer piston body extending coaxially around the inner spring-loaded piston rod. The second part is arranged between the inner spring-loaded piston rod and the outer piston body, and is provided with a pressing member. The injection device includes an actuator connected to the second part of the piston. The actuator is adapted to selectively move the second part between the proximal first position portion and the distal second position.

A syringe apparatus is provided for stirring and delivering single or multi-component compositions. The syringe apparatus comprises a syringe barrel, a plunger, a stirring paddle, and a connecting member. The plunger partially disposed within the syringe barrel is movable along an axial direction of the syringe barrel. The stirring paddle disposed within the syringe barrel has one end passing through the plunger and slidably disposed within the plunger. The syringe apparatus of the disclosure can stir the components and deliver the mixture safely for maintaining a good hygiene condition during the therapeutic process.

A system for delivering an injection of a fluid into a void within a subject is disclosed. A barrel extends from a first end to a second end and forms a lumen extending from the first end to the second end. A plug and a floating seal are arranged within the lumen. A hollow needle includes a distal end with an opening for fluid to flow from the lumen. The plug, the barrel and the floating seal include material and dimensions selected based on a threshold flowrate for a fluid arranged within the lumen to: overcome a force opposed to a force being applied to the fluid in the lumen to move the floating seal and the hollow needle into a tissue of the subject, and succumb to the opposing force to displace the fluid through the opening into the void.

An apparatus for a firing mechanism for use in an injection device and including: a rear cap having an elongate member extending axially forwards when installed within the injection device; a plunger releasably connected, directly or indirectly, to the elongate member and, upon release of the connection to the elongate member, axially displaceable in a forward direction; and a plunger driver to drive the plunger axially forwards upon release of the connection to the elongate member, wherein the plunger and the rear cap define an axial length of the assembly, which in turn determines a start position of a forward end of the plunger before release of the connection to the elongate member, and wherein, during construction of the assembly, the plunger is releasably connectable, directly or indirectly, to the elongate member at one of a plurality of positions for controlling the axial length of the assembly.

The present invention relates to a drive mechanism of a drug delivery device for setting and dispensing of a dose of a medicament, the mechanism comprising: a housing (20), a piston rod (120) to operably engage with a piston (14) of a cartridge (12) to displace the piston (14) in a distal direction (1), a rotatable member (80) arranged on an axially extending axis of rotation (4) in the housing (20), said rotatable member (80) being rotatable in a dose incrementing direction (5) against the action of a spring element (78) and being operably engageable with the piston rod (120) during dose dispensing, a clutch member (150) comprising at least one radially displaceable clutch element (153) to engage with a rim (82) of the rotatable member (80) with variably adjustable strength.

The present invention relates to a drive mechanism of a drug delivery device for setting and dispensing of a dose of a medicament, the mechanism comprising: a housing (20), a piston rod (120) to operably engage with a piston (14) of a cartridge (12) to displace the piston (14) in a distal direction (1), a rotatable member (80) arranged on an axially extending axis of rotation (4) in the housing (20), said rotatable member (80) being rotatable in a dose incrementing direction (5) against the action of a spring element (78) and being operably engageable with the piston rod (120) during dose dispensing, a clutch member (150) comprising at least one radially displaceable clutch element (153) to engage with a rim (82) of the rotatable member (80) with variably adjustable strength.

An auto-injector for receiving and operating a syringe, the auto-injector comprising: a housing for receiving the syringe, the housing comprising a main body and a hinged door operable into an open position and a closed position, wherein the syringe is receivable within the housing when the hinged door is in the open position; at least one charging link connected between the main body and the hinged door, wherein the connection of the charging link to the main body and/or the connection of the charging link to the hinged door is a slidable connection configured to slide on opening and closing of the hinged door and configured to couple to the at least one drive spring for priming thereof on opening and/or closing of the hinged door, the at least one drive spring being configured on activation of the auto-injector to drive a plunger driver forward within the auto-injector to operate the syringe received within the auto-injector.

Method and device to inject fluid into animals through a sterile needle, requiring control of fluid volume, flow rate of injection, accuracy of injection site, depth of penetration, disposal administration of consumable materials and quality control of the fluid and fluid administration using a portable applicator controlled by an external software controlled pump and controller system used in administering fluid medications, organic castration compounds and other fluids to be administered to live animals.