Patent ID: 7955301
Filing Date: 2011-06-07
Classification: A61M,Y10T

Abstract:
1. An injection shut off valve for limiting flow of a composition, the shut off valve comprising: a housing having an inlet, an outlet and a flow path disposed therebetween and in fluid communication with the inlet and the outlet, the inlet configured to receive an end of an injection syringe; and a valve assembly contacting the flow path and having a first chamber and a second chamber, the first chamber comprising a diaphragm movable in at least a closed position to prevent flow of the composition to the outlet, the second chamber having an actuator disposed therein, the actuator responsive to pressure in the flow path and coupled to the diaphragm in the first chamber, the actuator movable in at least an upper position when a select pressure is reached in the flow path, wherein movement of the actuator in the upper position moves the diaphragm in the first chamber to the closed position to prevent flow of the composition, and the actuator further comprises a lever that contacts the diaphragm and releases the diaphragm when the actuator is moved in the upper position to prevent flow to the outlet.