Abstract: The present invention is an auto-injector for the administration and self-administration of drugs by subcutaneous, intramuscular or intra-dermal injection and for drug solutions or suspensions. The auto-injector may comprise three modules for ease of assembly, the modules principally including a standard cartridge module with stopper and septum, a power source and indicator module that pushes against the cartridge stopper pressurizing contents, an injection progress indicator and a needle shuttle comprising of two needles, one needle being the injection needle and one needle being the septum needle. A needle guard ensures that the needle is always covered thus hiding the needle before and after the injection and that prevents needle stick injurie.

Abstract: An auto-injector assembly comprises a medicament container defining a substantially cylindrical chamber containing a liquid medicament. A proximal end of the chamber is closed by a piston and a distal end of the chamber is closed by a seal spanning an opening. A biasing means, such as a spring, is coupled to the piston and acts to bias the piston towards the seal, thereby pressurizing the liquid medicament. The assembly also comprises a hypodermic needle and a removable needle cap for maintaining the hypodermic needle in sterile conditions until use. A means for establishes fluid communication between the chamber and the hypodermic needle such that the pressurized liquid medicament is automatically delivered through the hypodermic needle when communication has been established.

Abstract: An injector for delivering medicament comprises a collapsible container (1002) for containing the liquid medicament, a normally-closed valve (1004) coupled to the collapsible container (1002) for retaining the liquid medicament within the collapsible container and an injection means (1006) for delivering the liquid medicament from the collapsible container. The liquid medicament is maintained under pressure by a pressurising means (1003) which pressurises the liquid medicament such that it is delivered by the injection means (1006) when the normally-closed valve (1004) is opened.

Abstract: An injector for delivering medicament comprises a collapsible container (1002) for containing the liquid medicament, a normally-closed valve (1004) coupled to the collapsible container (1002) for retaining the liquid medicament within the collapsible container and an injection means (1006) for delivering the liquid medicament from the collapsible container. The liquid medicament is maintained under pressure by a pressurizing means (1003) which pressurizes the liquid medicament such that it is delivered by the injection means (1006) when the normally-closed valve (1004) is opened.

Abstract: An injector for delivering medicament comprises a collapsible container (1002) for containing the liquid medicament, a normally-closed valve (1004) coupled to the collapsible container (1002) for retaining the liquid medicament within the collapsible container and an injection means (1006) for delivering the liquid medicament from the collapsible container. The liquid medicament is maintained under pressure by a pressurising means (1003) which pressurises the liquid medicament such that it is delivered by the injection means (1006) when the normally-closed valve (1004) is opened.