Drug cassette, autoinjector, and autoinjector system

A cassette for an injector, the cassette comprising:

• a housing;
• a body member having a fluid chamber for containing a drug and an injection needle in fluid communication with the chamber, the body member moveable in the housing between a proximal position and a distal position;
• and
• a locking arrangement for interlocking the body member with the housing, the locking arrangement comprising a spring-biased member associated with one of the housing and the body member, and a fixed member associated with the other one of the housing and the body member for interlocking with the spring-biased member, wherein the locking arrangement further comprises:
• a cam for unlocking the spring-biased and fixed members;
• and
• a second cam for preventing the spring biased member from interfering with the assembly of the body member to the housing, wherein the second cam is disposed on a hand member connected to the one of the housing and the body member.

A cassette for an injector, the cassette comprising:

• a housing;
• a body member having a fluid chamber for containing a drug and an injection needle in fluid communication with the fluid chamber, the body member moveable in the housing between a proximal position and a distal position;
• and
• a cassette identification arrangement (cassette ID) defining a code containing information about the cassette, the code being detectable and decipherable by the injector, the cassette ID disposed on the housing, embedded within the housing, provided on or in a separate structure contained within the housing, or any combination thereof;
• wherein the cassette ID comprises a contact system that requires contact between the cassette ID and the injector, the contact system comprises one or more electrically conductive strips for contacting one or more sensing elements of a detector of the injector when the cassette is placed in or on the injector, and each of the one or more electrically conductive strips defines a straight or tortuous path, the code at least partially determined by the path of each of the one or more electrically conductive strips.