An injection device comprises a casing, a syringe carrier located within a proximal end of the casing and being movable along a longitudinal axis of the device between a stowed position and a needle insertion position, and a drive assembly located within a distal end of the casing and being movable by an insertion driver in order to move the syringe carrier and a loaded syringe from a stowed position to a needle insertion position. The device further comprises a first formation fixed relative to the casing and a second formation fixed relative to an insertion tube of the drive assembly, the first and second formations defining between them a plurality of stop positions for the insertion tube relative to the casing, spaced along the direction of said longitudinal axis, to prevent significant rearward movement of the insertion tube along said axis when a plunger of a firing cartridge is released from a reaction assembly of the cartridge.

Provided is a cassette unit suitable for use with an auto-injector having an electrically powered drive unit. The cassette unit comprises a cassette unit housing defining a cassette unit housing cavity and a needle projection aperture. The housing cavity may receive a syringe. Axially movable within the barrel of the syringe for forward movement into contact with the syringe plunger, there is a plunger slaving part defining a circumferential wall arranged for frictional sliding relationship with the inner wall of the barrel, a rear drive-receiving face and a front plunger-contacting face. The plunger slaving part is arranged such that when a drive load is applied to its rear drive-receiving face to bring the front plunger-contacting face into contact with the plunger the drive load is evenly transmitted. The circumferential wall is provided with slide restrictors that restrict frictional sliding movement thereof in relation to the inner wall of the barrel.

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.

An apparatus includes a housing, a carrier, a medicament container, and a flexible member. The housing defines an opening placing a gas chamber of the housing in fluid communication with an exterior volume. The carrier has a proximal surface that defines a portion of the gas chamber. The medicament container is coupled to the carrier and has a distal end portion coupled to a delivery member. The medicament container containing a medicament and includes an elastomeric member that seals the medicament therein. The flexible member has a distal end portion coupled to the elastomeric member and a proximal end portion coupled to a valve member. The flexible member transitions from a collapsed configuration to an expanded configuration when the elastomeric member moves within the medicament container. The flexible member moves the valve member relative to the opening when the flexible member transitions from the collapsed configuration to the expanded configuration.

A pen needle and a method of using the pen needle. The pen needle includes a housing, a needle carrier in the housing supporting a needle, a distal shroud positioned around the needle within the housing, a distal compression spring positioned around the needle between the needle carrier and the distal shroud, a proximal shroud positioned around the needle within the housing, and a proximal compression spring positioned around the needle between the needle and the proximal shroud. The proximal shroud is movable between a first position, in which it engages the distal shroud to hold it in engagement with the housing, and a second position in which the proximal shroud is disengaged from the distal shroud allowing the distal shroud to move in a distal direction to project from the housing and surround the end of the needle.

A cap for an injection device includes an outer member and an inner member slidably received within the outer member and moveable between a first position and a second position; cooperating locking portions on the inner and outer members configured to secure the inner member relative to the outer member once moved into the second position; a clamping element extending inwardly from an arm of the inner member or a contact surface of the outer member; wherein, the cap is configured such that as the inner member is moved to the second position, the arm engages the contact surface causing the clamping element to move inwards to engage a body when disposed within the cap, and the cooperating locking portions engage and retain the inner member in the second position.

The present disclosure relates to a cap assembly for a medicament delivery device comprising a cap body configured to be detachably mounted to a housing of a medicament delivery device, and a cap lid configured to be attached to the cap body, wherein the cap body is configured to receive a needle sleeve and the cap lid when the cap assembly is attached to a medicament delivery device, the cap lid comprising an anti-recapping element configured to prevent the cap assembly from being reattached to a housing of a medicament delivery device once the cap assembly has been removed and the medicament delivery device has been used, wherein the anti-recapping element comprises a projection configured to engage a needle sleeve of a medicament delivery device to prevent the cap assembly being reattached to a housing of a medicament delivery device once the medicament delivery device has been used.

An auto injector for delivery of administering a medicament comprising: a housing; an electrical motor adapted to move a piston between proximal and distal positions in a longitudinal direction of the auto injector; a syringe holder extending from a proximal to a distal end and configured to receive a syringe, a first spring adapted for moving the syringe holder with the syringe proximally for insertion of the needle; wherein the electrical motor is the only motor in the auto injector.

The present disclosure relates to a support structure for a medicament container used in a medicament delivery device. The support structure accommodates an elongated plunger rod and a drive spring and can have a tubular body having a predetermined radial dimension, a longitudinal axis (A), a distal end and a proximal end and at least one first flexible element arranged at the proximal end of the tubular body and having the same radial outer and inner dimensions as the tubular body. The flexible element is provided with a contact member with an outer radial dimension extending the outer dimension of the tubular body for compensating of manufacturing tolerances of the medicament containers made of glass.

A cassette for use with an injector has a housing, and a cassette identification arrangement (cassette ID) defining a code containing information about the cassette that is detectable and decipherable by an injector. The cassette may further have a sleeve movably disposed within the housing, for holding a drug container, and a locking arrangement for interlocking the sleeve with the housing. The cassette may further have an aperture in the housing, and a cassette cap for removing a needle shield of the drug container. The cassette may have an anti-bending structure to prevent bending or flexing of the cassette cap. The injector may have a processor for controlling operational parameters of the injector and a detector communicatively coupled with the processor for detecting and communicating the cassette ID to the microprocessor to decipher the code defined therein. Also, a method of injecting a drug into a patient with an injector, wherein the sequence of actions performed by the user are controlled. Still further, a method of treating a patient in need thereof wherein a cassette containing a drug is provided and administered to the patient using an injector.