Patent ID: 9011370
Filing Date: 2015-04-21
Classification: A61M,F16K

Abstract:
1. A valve in a fluid delivery system, comprising: a valve seat comprising a fluid inlet, a fluid outlet, a conical well having an opening with a beveled surface and a bottom, the bottom in a different plane than the beveled surface, and a flow path passing from the fluid inlet through the conical well of the valve seat to the fluid outlet; and a valve membrane comprising a conical portion having a central axis, a base, and a tip, the conical portion configured to fit within the conical well of the valve seat, the valve membrane configured to allow fluid to flow from the fluid inlet along the flow path, between the conical well and conical portion, to the fluid outlet when the conical portion is in an undeformed position, and block the flow path when in a radially deformed position; wherein the valve seat and valve membrane are configured such that the conical portion is separated from the beveled surface by a clearance when the valve membrane is in the undeformed position, and the conical portion is fluidly sealed against the beveled surface in the radially deformed position, wherein engagement of the tip of the conical portion against the bottom of the conical well compresses the valve member axially and radially expands the conical portion to contact the beveled surface.