A safety device for a medicament delivery device having a housing, a medicament delivery member guard in the housing being rotationally fixed and axially movable relative to the housing, a biasing element, and a rotator arranged within the housing that rotates relative to the housing between an initial unlocked position and a final locked position, wherein the medicament delivery member guard has a guide track and a stop member, the guide track has an inclined section configured to cause rotation of the rotator, where the rotator has a protrusion configured as a stop surface, where in an initial unlocked position the protrusion is arranged in the guide track and where in a final locked position the rotator is rotated with respect to the position of the medicament delivery member guard, and wherein in the final locked position the medicament delivery member guard is locked against distal movement relative to the housing.

Aspects of the present invention relate to an injection device configured to receive a medicament container. The injection device comprises movable means, such that before injection an information code is not visible and such that during or after injection the movable means moves to allow the code to be visible.

Provided herein is a housing assembly for a drug delivery device, including a first housing part having a first proximal end comprising a first engagement portion and a second engagement portion, a first distal end, and a first sidewall therebetween defining a first longitudinal axis and a first interior, the first sidewall comprising one or more windows therethrough; and a second housing part having a second proximal end, a second distal end comprising a third engagement portion and a fourth engagement portion, and a second sidewall therebetween defining a second longitudinal axis and a second interior.

Provided herein is a housing assembly for a drug delivery device, including a first housing part having a first proximal end comprising a first engagement portion and a second engagement portion, a first distal end, and a first sidewall therebetween defining a first longitudinal axis and a first interior, the first sidewall comprising one or more windows therethrough; and a second housing part having a second proximal end, a second distal end comprising a third engagement portion and a fourth engagement portion, and a second sidewall therebetween defining a second longitudinal axis and a second interior.

The present disclosure relates to an injection needle assembly for use in a medicament delivery device. The injection needle assembly comprises an injection needle holder, an injection needle fixed to said injection needle holder, the injection needle having a proximal end and a distal end, and a sealing assembly for sealing the distal end of the injection needle. The sealing assembly comprises a spacer element surrounding the distal end of the injection needle and a sealing membrane for sealing the distal end of the injection needle.

The present disclosure relates to an injection needle assembly for use in a medicament delivery device. The injection needle assembly comprises an injection needle holder, an injection needle fixed to said injection needle holder, the injection needle having a proximal end and a distal end, and a sealing assembly for sealing the distal end of the injection needle. The sealing assembly comprises a spacer element surrounding the distal end of the injection needle and a sealing membrane for sealing the distal end of the injection needle.

Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

An autoinjector apparatus is disclosed which comprises a single-use cassette and an autoinjector. The cassette comprises a housing and a sleeve movably disposed in the housing. A syringe may be disposed in the sleeve and secured therein with a lock cap. The lock cap is affixed to a distal end of the sleeve and contacts the distal end of the syringe. A shield remover extends through an opening in a proximal end of the housing for removing a needle shield which covers a needle of the syringe. A cassette identification arrangement is provided on a surface of the housing to enable the autoinjector to identify the cassette. The autoinjector is provided with a detector for reading the cassette identification arrangement.

An autoinjector apparatus is disclosed which comprises a single-use cassette and an autoinjector. The cassette comprises a housing and a sleeve movably disposed in the housing. A syringe may be disposed in the sleeve and secured therein with a lock cap. The lock cap is affixed to a distal end of the sleeve and contacts the distal end of the syringe. A shield remover extends through an opening in a proximal end of the housing for removing a needle shield which covers a needle of the syringe. A cassette identification arrangement is provided on a surface of the housing to enable the autoinjector to identify the cassette. The autoinjector is provided with a detector for reading the cassette identification arrangement.

A method of manufacturing one of a range of autoinjectors having cartridges (600, 600′, 600″) with different preset fill volumes, the method comprising the steps of: a) providing a front body assembly (100b, 100c, 100c′, 100c″), b) providing a cartridge (600, 600′, 600″) of given fill volume, c) providing a rear body assembly (100a) comprising a spring-driven drive ram assembly (310, 320) configured to drive the piston of a held cartridge (600, 600′, 600″), d) providing a ram spacer member (400, 400′, 400″), the ram spacer member defining a spacing geometry of length dimension (X1′, X1″, X1′″, XS′, XS″, XS′″, XR′, XR″, XR′″) selected according to the fill volume of the cartridge (600, 600′, 600″), and e) assembling a front body assembly (100b, 100c, 100c′, 100c″), the cartridge (600, 600′, 600″), the ram spacer member (400, 400′, 400″) and the rear body assembly (100a) so that the ram spacer member (400, 400′, 400″) is arranged axially between the drive ram assembly (310, 320) of the rear body assembly (100a) and the piston of a held cartridge (600, 600′, 600″).