| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a continuous development opportunity exists in an area for mobilizing lung secretions.SOLUTION: A continuous high-frequency chronotropism therapy is disclosed. A pulse generator 18 includes: a valve system 26 for connecting fluid flows of two ports 20, 40 when the pressure in one of the two ports exceeds a threshold. By fluid communication between two ports, a liquid can be returned to the pulse generator through an opening part and a needle valve, and the opening part and the needle valve are external components of the pulse generator. Gas flowing into the pulse generator through the needle valve applies the force to a diaphragm 28, and when the gas flowing through the needle valve exceeds a threshold, a valve button 42 is deformed and pressed. By the operation of the valve button due to deformation of the diaphragm, the valve button exerts force to the valve system to decrease a flow of the fluid between two ports. |
