Title:
PIPE LINE SWITCHING DEVICE FOR ENDOSCOPE
Document Type and Number:
Japanese Patent JP3510705
Kind Code:
B2
Abstract:
PURPOSE: To provide a small-sized pipe line switching device with improved operability and improved durability without the leakage of fluid by forming the connection opening of a first primary side in a fluid pipe line at the bottom part of a cylinder and forming the connection opening of a second primary side inn a fluid pipe line and the connection opening of a secondary side in a fluid pipe line on approximately the same circumference vertical to a cylinder axial line on a cylinder side wall.
CONSTITUTION: A bottom cover 11 is hinged to the bottom part of the cylinder 5 and an air supply tube 12 connected to the bottom cover 11 on the extended line of the axial line of the cylinder 5 is connected to the inside of the cylinder 5. Also, a water supply tube 13a is connected to a water supply pipe line 13 opened and connected to the side wall surface of the cylinder 5 and the base end of an air and water supply path 2 is opened and connected to the side wall surface of the cylinder 5. Then, the connection opening 13c of the water supply pipe line 13 and the connection opening 2c of the air and water supply path 2 are formed on approximately the same circumference vertical to the axis line of the cylinder 5 on symmetrical positions at 180° intervals opposite each other. When the tip opening 9a of a through-hole 9 is clogged with a finger, air lost its exit is sent from a connection hole 20 to the air and water supply path 2 and sent out to the tip 1 of an insertion part and an air supply state is attained.
Inventors:
Ouchi, Teruo
Application Number:
JP11099395A
Publication Date:
March 29, 2004
Filing Date:
May 10, 1995
Export Citation:
Assignee:
ASAHI OPTICAL CO LTD
International Classes:
G02B23/24; A61B1/00; (IPC1-7): A61B1/00; G02B23/24
Attorney, Agent or Firm:
三井 和彦