Patent ID: 8277421
Filing Date: 2012-10-02
Classification: A61M

Abstract:
1. A drug solution injector comprising: a needle tube having a sharp needlepoint at a distal end thereof; an outer cylinder having a bottomed hollow cylindrical shape, the outer cylinder being located on a proximal side of the needle tube and having an inside space that can communicate with an inside of the needle tube; a gasket slidable within the outer cylinder; a drug solution contained in a space surrounded by the outer cylinder and the gasket; a support member which supports the needle tube and has a flow channel having a distal end capable of communicating with the inside of the needle tube and a proximal end capable of communicating with an inside of the outer cylinder; an operation mechanism which is fixed in a state of covering at least the needlepoint of the needle tube and performs selection between a communicating state wherein the inside of the needle tube and the inside of the outer cylinder communicate with each other through the flow channel and a blocked state wherein the communication is blocked, by rotating the support member; and exposure prevention means for preventing exposure of the needlepoint.