发明名称 |
Body cavity pressure adjusting device for endoscope and laser medical treatment apparatus including body cavity pressure adjusting device |
摘要 |
An endoscope system is provided in which air is pumped into a first channel into the endoscope in order to pressurize the body cavity and a forceps channel is connected to a suction pump in order to drain the body cavity of fluid, air and debris. Either a second suction pump or a second supply of air is connected to the forceps channel along with a pressure detector for controlling suction. Further, a suction tube is also provided which is connected to, and which communicates with, a forceps channel in which a medical tool is adapted to be inserted, and a suction device is, in turn, connected to and communicates with the suction tube. Pressure within the suction tube is detected by a pressure detecting device, and the detected pressure is indicated on the display. A suction control device is provided which controls operation of the suction device by operating based upon an output signal from a pressure setting device for setting a maximum value for the body cavity pressure and an output signal from the pressure detecting device. A laser knife is also provided which includes a protective pipe surrounding a fiber optic laser transmitting member for forming a first gap and a tube surrounding the protective pipe to form a second gap. Gas is passed through the first gap to cleanse the emitting end of the laser transmission member. A pressure detecting device is coupled to the second gap in order to monitor pressure within the stomach, and a suction device which is responsive to the pressure detecting device is also connected to the second gap in order to control gas pressure within the stomach. |
申请公布号 |
US4971034(A) |
申请公布日期 |
1990.11.20 |
申请号 |
US19890375469 |
申请日期 |
1989.07.05 |
申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
DOI, YUZURU;HONDA, RYOJI;SHIRAI, MASAMI;OSAWA, HITOSHI |
分类号 |
A61B1/012;A61B1/015;A61B1/12;A61B1/273;A61B5/03;A61B17/34;A61B18/20;A61B18/22;A61M1/00;A61M13/00;F16K7/04;(IPC1-7):A61B1/00 |
主分类号 |
A61B1/012 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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