INTRADERMAL INJECTION DEVICE

摘要

Intradermal injection device (9) comprising a housing (5), a foot (1) with an opening (102) for passage of a needle (7); a reservoir (3) movably mounted in the housing , and having a hollow space (312) for holding a fluid; a hollow needle (7) movably mounted in the housing and having a first end (71) for penetrating the subject s skin and a second end (72) for penetrating the reservoir (3,) a plunger (6) movably mounted in the housing for moving the needle (7) through the opening (102) for penetrating the subject' s skin , and for pressing the fluid out of the reservoir (3); wherein the reservoir (3) is frictionally mounted inside the housing (5) by first friction means and the plunger (6) is frictionally mounted to, the reservoir (3) by second friction means, whereby the force to overcome the second friction is larger than the force to overcome the first friction.