Patent ID: 9097248
Filing Date: 2015-08-04
Classification: A61B,B05B,F04B

Abstract:
1. A pulsating flow generating apparatus comprising: a fluid chamber which is configured to contains a fluid; an inlet flow channel for supplying fluid from a fluid supplying unit to the fluid chamber; a volume changing unit that changes the volume of the fluid chamber; an outlet flow channel connected to the fluid chamber and a fluid injection opening and which that delivers the fluid from the fluid chamber to the fluid injection opening; a discharge flow channel connected to the fluid chamber at an area separate from the area where the outlet flow channel is connected to the fluid chamber, the discharge flow channel discharging the fluid from the fluid chamber; and an opening and closing valve that opens and closes the discharge flow channel, wherein the synthetic inertance of the discharge flow channel is set to be smaller than the synthetic inertance of the outlet flow channel, the synthetic inertance of the inlet flow channel is set to be larger than the synthetic inertance of the outlet flow channel, an operation of the volume changing unit is started while closing the opening and closing valve, the operation of the volume changing unit is stopped while opening the opening and closing valve, and the liquid discharged via the discharge flow channel is discharged outside of the pulsating flow generating apparatus.