Fluid jet device, drive device of fluid jet device, surgical instrument, and method of driving fluid jet device

摘要

A fluid jet device including a fluid chamber with variable capacity and a capacity varying section adapted to vary the capacity of the fluid chamber in response to supply of a drive signal. A drive waveform section making the capacity varying section operate so as to compress the capacity of the fluid chamber and a restoring drive waveform section making the capacity varying section operate to restore the capacity of the fluid chamber before compressing the capacity in a signal waveform. The drive signal supply section controls supply content of the drive signal to provide a restoring period adapted to restore a steady state of the fluid flowing toward an inside of the fluid chamber in a period from when the compressing drive waveform section in the drive signal is supplied to when a subsequent compressing drive waveform section is supplied.

主权项

1. A fluid jet device comprising:
a fluid chamber with a variable capacity; an entrance channel communicated with the fluid chamber; an exit channel communicated with the fluid chamber; a capacity varying section adapted to vary the capacity of the fluid chamber in response to supply of a drive signal; an opening section communicated with the exit channel; a pressure generation section adapted to supply the entrance channel with a fluid; and a drive signal supply section adapted to supply the capacity varying section with a drive signal including a compressing drive waveform section making the capacity varying section operate so as to compress the capacity of the fluid chamber and a restoring drive waveform section making the capacity varying section operate so as to restore the capacity of the fluid chamber before compressing the capacity in a signal waveform of one cycle; and an operation controlling section adapted to control supplying the drive signal in response to input to an input section; wherein when a stopping instruction of the drive signal is issued from the operation controlling section while the drive signal is being supplied to the capacity varying section, the drive signal supply section stops supplying the drive signal after an entire waveform of one cycle is supplied to the capacity varying sections.