PHARMACEUTICAL INJECTION DEVICE

摘要

The pharmaceutical injection device of the present invention comprises a cartridge holder, a main case, a piston, a motor, an opening component, an open/closed detection switch, and a controller. The motor drives the piston in either an insertion direction in which the piston is inserted into a pharmaceutical cartridge, or a pull-out direction in which the piston is pulled out of the pharmaceutical cartridge. The opening component opens the cartridge holder in conjunction with the movement of the piston in the pull-out direction. The open/closed detection switch detects whether the cartridge holder is open or closed. When the open/closed detection switch detects that the cartridge holder is open, the controller controls the motor so as to stop the piston.

主权项

1. A pharmaceutical injection device, comprising:
a cartridge holder to which a pharmaceutical cartridge is mounted; a main case to which the cartridge holder is provided openably and closeably; a piston that can be inserted into the pharmaceutical cartridge mounted to the cartridge holder; a driver that drives the piston to move in either an insertion direction in which the piston is inserted into the pharmaceutical cartridge, or a pull-out direction in which the piston is pulled out of the pharmaceutical cartridge; an opening component that opens the cartridge holder in conjunction with the movement of the piston in the pull-out direction; a cartridge holder detector that detects whether the cartridge holder is open or closed; and a controller that controls the driver so as to stop the piston when the cartridge holder detector has detected that the cartridge holder is open.