Flow inversion valve for lung ventilator - has one piece moulded body with flow divider defining outlets communicating with control zone

摘要

The valve has an inlet port, a control zone (11) which communicates with the inlet port and an outlet port from the control zone. A flow divider (27) within the outlet port defines other outlet ports which communicate with the control zone. The valve body is moulded in one piece with a tubular outlet port (12) within which the cylindrical tubular divider passes by sliding so that vertical part (12) and opposed horizontal parts (27) are in register with an opening in the body (10) downstream of control zone (11).