Patent ID: 7316680
Filing Date: 2008-01-08
Classification: A61K

Abstract:
1. A device for dynamically regulating flow of a fluid from a pressurized fluid delivery system, the device comprising: a hollow body having a lower port and an upper port, wherein the hollow body comprises a closing member and a spring provided within the hollow body, wherein the spring comprises a cantilevered spring arm having two ends, one of the ends being attached to an inner surface of the hollow body, and further maintains the closing member in a position to substantially cover one of the lower and upper ports when the pressure acting upon the device by the fluid is below the lower predetermined pressure or above the upper predetermined pressure; wherein the closing member comprises a spherical member connected to the other end of the spring arm; and means for controlling fluid flow through the hollow body, the controlling means substantially preventing fluid flow when pressure acting upon the device by the fluid is below a lower predetermined pressure and when the pressure is above an upper predetermined pressure, and substantially allowing fluid flow when the pressure is between the lower and upper predetermined pressures.