Patent ID: 6749592
Filing Date: 2004-06-15
Classification: A61M,G05D

Abstract:
A suction pressure regulator comprising:a housing having an inner surface and at least one inlet aperture and at least one outlet aperture, where each of the at least one inlet aperture is in fluid communication with a source of atmospheric pressure and each or the at least one outlet aperture is in fluid communication with a suction source; a sealing member moveably disposed within the housing; a flexible member extending between an outside surface of the sealing member and an inner surface of the housing; a biasing mechanism wherein the force applied by the biasing mechanism is adjustable and is responsive to suction pressure within at least a portion of the housing and ads on the sealing member so the sealing member is in one of an open position, when the suction pressure within at least a portion of the housing is greater than a predetermined suction pressure value, or a closed position, when the suction pressure therein is at or below the predetermined suction pressure value; and wherein the biasing mechanism is arranged so that in the closed position a sealing portion of the sealing member is urged against an interior surface of the housing so as to obstruct fluid communication between each of the at least one inlet aperture and each of the at least one outlet aperture.