| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved medicine feeding pen for injecting a fluid such as insulin into human tissues. SOLUTION: This medicine feeding pen is provided with a mechanism avoiding the detaching of a cartridge unless an injection button 24 on this medicine feeding pen occupies a prescribed position, a bayonet-type fixing means and an improved clutch assembly at a dosage setting mechanism. This dosage setting mechanism improves the control of torque required for rotating a unit counting ring of the medicine feeding pen through the use of a dosage setting knob 12. |
