Patent ID: 9730723
Date: 2017-08-15
CPC Classifications: A61B

Claim:
1. A method of injecting fluid to incise living tissue by a fluid injection device comprising: a fluid injection unit having a nozzle configured to inject fluid, a fluid chamber communicating with the nozzle via an injection tube, and an actuator configured to reduce capacity of the fluid chamber, and a fluid supply unit configured to supply fluid to the fluid chamber via an inlet tube, the method comprising: a first step of injecting fluid from the nozzle in a continuous manner by the fluid supply unit, wherein the first step does not include driving the actuator; and a second step of injecting fluid from the nozzle in a pulsed manner after the first step by driving the actuator in addition to the fluid supply unit, wherein an injection speed of fluid in a continuous manner is slower than an injection speed of fluid in a pulsed manner.