초록 ▼

An endoscope comprising an elongated insertion section inserted into the cavity of a human body, an operating section connection to an end of the inserted section and controlling the inserted section from outside the human body, and a universal code extending from the operating section. The universa

An endoscope comprising an elongated insertion section inserted into the cavity of a human body, an operating section connection to an end of the inserted section and controlling the inserted section from outside the human body, and a universal code extending from the operating section. The universal code has a connector arranged at that end thereof which is opposite to the operating section, and connected to water, air and gas sources. Liquid tubes extend through the inserted and operating sections and universal code to enable the gas, air and water sources to communicate with the outside through the foremost end of the inserted section. A switch valve is arranged within these liquid tubes, dividing them into upper and lower side tubes. The switch valve is attached to the operating section to selectively communicate with or shut off the upper and lower side tubes. When they are shut off, air which has leaked from the gas source can be released through a leak passage to the outside and the outlet opening of this leak passage can selectively be closed by hand.

대표청구항 ▼

An endoscope including an elongated insertion section inserted into the cavity of a human body and provided with a nozzle at the foremost end thereof, an operating section connected to the other end of said insertion section and controlling it from outside the human body, and a universal code extend

An endoscope including an elongated insertion section inserted into the cavity of a human body and provided with a nozzle at the foremost end thereof, an operating section connected to the other end of said insertion section and controlling it from outside the human body, and a universal code extending from said operating section, said endoscope further comprising a fluid source; a connector connected to that end of said universal code, opposite of said operating section, and also connected to said fluid source; a fluid supply tube means extending through said insertion section, operating section and universal code and communicating with said nozzle and also with said fluid source through said connector; and a switch valve means arranged within said fluid supply tube means, dividing said fluid supply tube means into upper and lower side tube means; wherein said switch valve means comprises a valve seat attached to said operating section and having an inner hole communicating with an inlet port means connected to said upper side tube means, and an outlet port means communicating with said lower side tube means, and a valve assembly means inserted into said inner hole of the valve seat, said valve assembly means being capable of moving between a first position where said inlet and outlet port means are shut off and a second position where they communicate with one another, said valve assembly means having a leak passage, which can be selectively closed, for allowing fluid to be released via the inlet port means to the outlet port means, and thereby released to the outside of said first position.