| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive and small-sized gas feeding device capable of feeding predetermined gas at feeding pressures appropriate for feeding to the peritoneal cavity and the luminal cavity, respectively. <P>SOLUTION: This gas feeding device 21 comprises a carbon dioxide gas cylinder 29 for feeding the predetermined gas, a first pressure reducer 32A and an electropneumatic proportional valve 33 for adjusting the pressure of the gas supplied from the carbon dioxide gas cylinder 29 at a pressure appropriate for feeding to the peritoneal cavity, and a second pressure reducer 32B for adjusting the pressure of the gas supplied from the carbon dioxide gas cylinder 29 at a pressure appropriate for feeding to the peritoneal cavity. More preferably, the gas feeding device is further provided with a setting operation section 41 and a display section 42 for selecting the gas supply to the peritoneal cavity or to a luminal cavity and a control section 40 for controlling the feeding of gas adjusted at the appropriate pressure by the first pressure reducer 32A, the electropneumatic proportional valve 33 and the second pressure reducer 32B to the peritoneal cavity or to the luminal cavity on the basis of the selected result at the setting operation section 41 and the display section 42. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
