Abstract: An injection device for injecting liquid medicine to a patient comprises a medicine container (2) an end of which is connectable to a needle (3) and magnetic sensor means (21, 22) for sensing connection of the needle (3) to the medicine container (2).

Abstract: The injection device includes a static structure including a first gear member. The injection device also includes a dynamic structure including a medicine container, a mechanism for pushing liquid medicine out of the medicine container for its injection to a patient, and a second gear member engaged with the first gear member. The injection device additionally includes a drive member for driving one of the first and second gear members so as to cause the dynamic structure to move relative to the static structure along a predetermined direction due to the engagement between the first and second gear members. The injection device further includes a clutch mechanism for maintaining engagement between the first and second gear members in normal condition of the injection device, and for allowing disengagement of the first and second gear members upon a shock received by the injection device along the predetermined direction.

Abstract: An injection device for injecting liquid medicine to a patient comprises a medicine container (2) an end of which is connectable to a needle (3) and magnetic sensor means (21, 22) for sensing connection of the needle (3) to the medicine container (2).

Abstract: An injection device for injecting liquid medicine to a patient comprises a main part (13) and a removable module (14), wherein the main part is arranged to house a medicine container (11) connected to a needle (9) and the removable module comprises a skin contact surface (10), the skin contact surface having a through hole (8) for passage of the needle and being intended to rest on the patient's skin during the injection.

Abstract: The injection device comprises: a static structure (2) comprising a first gear member (14), a dynamic structure (3) comprising a medicine container (11), means (6, 7, 8, 12) for pushing liquid medicine out of said medicine container (11) for its injection to a patient, and a second gear member (13) engaged with the first gear member (14), a drive member (4) for driving one (14) of the first and second gear members (13, 14) so as to cause the dynamic structure (3) to move relative to the static structure (2) along a predetermined direction (D) due to the engagement between the first and second gear members (13, 14), and clutch means (23, 25, 28) for maintaining engagement between the first and second gear members (13, 14) in normal condition of the injection device, and for allowing disengagement of the first and second gear members (13, 14) upon a shock received by the injection device along the predetermined direction (D).