Title:
ENDOSCOPE SYSTEM, CONTROL DEVICE, AND METHOD OF CONTROLLING GAS FLOW
Document Type and Number:
WIPO Patent Application WO/2022/185809
Kind Code:
A1
Abstract:
An endoscope system including: an endoscope; a treatment tube including an electrode and a first gas channel; a first gas source supplying a first gas through the first gas channel; a second gas source supplying a second gas through a second gas channel that is not included within the treatment tube and supplies the second gas in the direction of the distal end of the insertion channel; an electricity power source supplying a first high frequency current to the electrode to ionize the first gas into a plasma state; and a control circuit controlling the electricity power source, and the first and second gas sources. The first gas ionizes into the plasma state at a first high frequency amperage, the second gas ionizes into a plasma state at a second high frequency amperage, and the second high frequency current is higher than the first high frequency amperage.
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Inventors:
MATSUO NOBUKO (JP)
KAJI KUNIHIDE (JP)
NAKAMURA YOSHISANE (JP)
KAJI KUNIHIDE (JP)
NAKAMURA YOSHISANE (JP)
Application Number:
PCT/JP2022/003547
Publication Date:
September 09, 2022
Filing Date:
January 31, 2022
Export Citation:
Assignee:
OLYMPUS MEDICAL SYSTEMS CORP (JP)
International Classes:
A61B1/00; A61B1/015; A61B1/018
Domestic Patent References:
| WO2019199281A1 | 2019-10-17 | |||
| WO2021140609A1 | 2021-07-15 |
Foreign References:
| US20090024122A1 | 2009-01-22 | |||
| US20050118350A1 | 2005-06-02 | |||
| US20180085155A1 | 2018-03-29 | |||
| JP2002301088A | 2002-10-15 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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