Title:
【発明の名称】逆流防止弁
Document Type and Number:
Japanese Patent JP2976488
Kind Code:
B2
Abstract:
PURPOSE:To obtain the check-valve which can be manufactured by using a material which has durability, easily manufacturable and comparatively inexpensive by providing a plate-like body having the part which can be bent to the maximum 90 deg. by the center line of the plate-like body having an area being substantially equal to an area in a tubular body, and the part provided on a support body in the part containing the center line. CONSTITUTION:An annular ring and a support body 2 for crossing its ring 1 are formed integrally, and on this support body, a fitting part of a plate-like body 4 is provided as a screw thread 3. At the time of attaching the plate-like body to the support body 2, with respect to the annular ring, a plate-like body (film) 6 part (bend part or fixed part) in which a reinforcing material 5 is formed integrally in the peripheral edge part is fixed onto the support body 2 at three parts with screws. The bent part 6 is the part for bending and operating a movable plate-like body part to an open state by fluid pressure. When usually the fluid pressure is not applied, said part is in a closed state. This check-valve is a valve being inexpensive and excellent in durability, and also, has resistance against a water hammer phenomenon when it is used for the artificial heart, and moreover, can be manufactured at a low cost, and comes to a valve being excellent in compatibility to a living body.
Inventors:
KASHIWABARA SUSUMU
TANAKA MASAKAZU
TANAKA MASAKAZU
Application Number:
JP13198790A
Publication Date:
November 10, 1999
Filing Date:
May 22, 1990
Export Citation:
Assignee:
TOYO BOSEKI KK
International Classes:
A61F2/24; F16K15/16; A61M1/12; (IPC1-7): F16K15/16; A61F2/24; A61M1/12