| 摘要 |
PURPOSE:To simply adjust the pressure in a storage section and simplify and miniaturize a structure by providing the storage section storing an object to be sucked, a pressure detecting section, and a pressure adjusting section adjusting the degree of vacuum from a decompressing section based on the detected pressure and setting the storage section to the preset pressure. CONSTITUTION:When a power source is turned on, a vacuum pump 65 is operated, a motor 67 is operated in the direction that the presser 69a of a pressure adjusting section 30 closes a passage 66. When the passage 66 is closed, a storage section 70 is opened to the atmosphere by an atmosphere opening section 60 to attain the atmospheric pressure. When a signal to start suction is fed, the motor 67 is operated in the direction to open the passage 66, the passage 66 is opened to attain vacuum in the storage section 70, then an object to be sucked 34 in an eyeball 10 is sucked to the storage section 70 through a suction port section 15 via a suction passage 40. When a pressure detecting section 50 detects that the pressure in the storage section 70 becomes the preset pressure during suction, the motor 67 is stopped, and the size of the diameter of the passage 66 is kept as it is. The pressure in the storage section 70 can be adjusted, and the structure can be simplified and miniaturized. |
