Patent ID: 9050436
Filing Date: 2015-06-09
Classification: A61M,Y10T

Abstract:
1. An anti-siphon drainage device, comprising: a housing forming an internal chamber; an inlet port and an outlet port communicating with the internal chamber and fluidly connected by a primary flow path; a valve seat associated with the primary flow path; a sloped section extending from the valve seat inside the internal chamber; a valve element disposed in the sloped section and capable of seating in the valve seat to restrict a fluid flow into the primary flow path from the inlet port; a secondary flow path comprising an opening disposed approximate to the inlet port and an orifice disposed approximate to the outlet port; a second secondary flow path separate from the secondary flow path and comprising a second opening; and a regulator comprising an aperture to selectively open and close the opening of the secondary flow path and a second aperture to selectively open and close the second opening of the second secondary flow path in at least one of the following configurations: each of the openings individually opened, wherein when the valve element is disposed in the valve seat and restricting the fluid flow into the primary flow path, the fluid flows into the secondary flow path.