IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0902193
(1986-08-29)
|
| 우선권정보 |
JP-0194361 (1985-09-03); JP-0190924 (1986-08-14) |
|
발명자
/ 주소 |
- Shimonaka Hideki (Hachioji JPX) Yoshimoto Yosuke (Hachioji JPX) Nakazawa Masaaki (Hachioji JPX)
|
| 출원인 / 주소 |
- Olympus Optical Co., Ltd. (JPX 03)
|
| 인용정보 |
피인용 횟수 :
46 인용 특허 :
0 |
초록
▼
Disclosed is a construction of an endoscopic fluid changing device which, attached to an endoscope, regulates the flow of a fluid in a channel of the endoscope. The fluid changing device comprises a cylindrical casing having a suction port, in the side wall thereof, a channel pipe provided in the ce
Disclosed is a construction of an endoscopic fluid changing device which, attached to an endoscope, regulates the flow of a fluid in a channel of the endoscope. The fluid changing device comprises a cylindrical casing having a suction port, in the side wall thereof, a channel pipe provided in the center of the casing, and having an opening at the upper end portion thereof, the lower end portion of the channel pipe being connected to an instrument channel, extending to the distal end portion of the endoscope, a cap member covering the opening of the channel pipe, a piston disposed between the casing and the channel pipe, and capable of vertical motion, a spring for urging the piston upward, first valve device provided at the upper portion of the piston, and adapted to open or close a first passage as the piston is operated, the first passage extending from the suction port to the outside of the casing, and second valve device provided at the lower portion of the piston, and adapted to close or open a second passage, in contrast with the first passage, as the piston is operated, the second passage extending from the suction port to the instrument channel.
대표청구항
▼
An endoscopic fluid changing device which is associated with an endoscope having an instrument channel, comprising: a cylindrical casing having a suction port, in the side wall thereof; a channel pipe provided in the center of the casing, and having an opening at the upper end portion thereof, the l
An endoscopic fluid changing device which is associated with an endoscope having an instrument channel, comprising: a cylindrical casing having a suction port, in the side wall thereof; a channel pipe provided in the center of the casing, and having an opening at the upper end portion thereof, the lower end portion of said channel pipe being connected to the instrument channel, extending to the distal end portion of the endoscope; a cap member covering the opening of the channel pipe; a piston disposed between the casing and the channel pipe, and capable of vertical motion; a spring for urging the piston upward; first valve means provided at the upper portion of the piston, and adapted to open or close a first passage as the piston is operated, said first passage extending from the suction port to the outside of the casing; and second valve means provided at the lower portion of the piston, and adapted to close or open a second passage, in contrast with the first passage, as the piston is operated, said second passage extending from the suction port to the instrument channel.
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