Patent ID: 11911591
Assignee: SANOFI-AVENTIS DEUTSCHLAND GMBH
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A drug delivery device for dispensing of a liquid medicament, comprising:
a first housing having at least one feeder member;
a disposable injector comprising an injection needle, a flexible tube and an injector fluid coupling, wherein the injection needle is in fluid communication with the injector fluid coupling via the flexible tube; and
a disposable cartridge adapted to be attached to the first housing of the drug delivery device, the disposable cartridge comprising
a flexible bag to accommodate a liquid medicament and having a sidewall and an opening adjacent to the sidewall,
a socket having a fluid channel in fluid communication with a cartridge fluid coupling, wherein the socket extends into the opening of the flexible bag and comprises an outside facing portion,
a second housing comprising an inside facing sidewall portion complementary shaped to the outside facing portion of the socket, wherein the outside facing portion and the inside facing sidewall portion comprises one of a circular shape, a cylindrical shape, an oval shape, an elliptical shape, a rectangular shape, a flattened round shape, or a flattened oval shape, the inside sidewall portion completely covering the flexible bag and having a receptacle to receive the socket with the flexible bag, wherein the sidewall of the flexible bag is fixed between the socket and the receptacle;
a circumferentially extending groove in the outside facing portion of the socket, wherein the circumferentially extending groove extends all around the outside facing portion of the socket; and
a sealing ring arranged in the circumferentially extending groove,
wherein the flexible bag is sealingly press fitted between the sealing ring and the inside facing sidewall portion of the second housing, wherein the sealing ring is mechanically squeezed between the outside facing portion of the socket and the inside facing sidewall portion of the second housing.