MEDICAL VALVE APPARATUS

Japanese Patent JP3676514

B2

PROBLEM TO BE SOLVED: To provide a medical valve apparatus capable of being simply, safely and correctly operated even by an unskilled patient by setting the main body of a check valve in a filling port provided sticking in a valve main body of a port exclusively used for filling and arranging a valve body in the main body of the check valve to open or close a supply path moving by a pressure difference between the inside and the outside thereof.
SOLUTION: This valve apparatus comprises a valve main body 1, a flow regulating unit and a port 3 exclusively used for filling and is mounted on a gas cylinder by screwing a male pipe of the main body 1 down into the gas cylinder. The flow regulating unit comprises a pressure reducing valve 21 which is arranged in a gas delivery chamber 20 formed on the main body 1 communicating with a gas outflow path 19 and a unit body 22 positioned outside the valve. The port 3 excrusively used for filling has a check valve unit screwed down into a filling port, a protruded part of the main body 1 and the main body of the check valve has a valve body therein moving by a pressure difference between the inside and the outside thereof. The valve body is pushed by a spring constantly to close a supply path of the main body of the check valve.

JP2001289537	PRESSURE CONTROL VALVE
JP4119481	Flame-retardant pressure equalizing valve

Masakazu Okubo

JP25543196A

July 27, 2005

September 05, 1996

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Daito Valve Co., Ltd.

F16K17/04; A61M16/20; (IPC1-7): A61M16/20; F16K17/04

JP4034570U
JP5215299A
JP60225212A
JP7148263A

Haruo Saito

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