Patent ID: 7448594
Filing Date: 2008-11-11
Classification: A61M,Y10T

Abstract:
1. A fluid regulator, comprising: a cylindrical body including a first portion configured to be coupled to a source of high pressure fluid and a second portion configured to be coupled to a cannula, the first portion including a fluid inlet and the second portion including a fluid outlet in fluid communication with the fluid inlet, the cylindrical body having an open end and a reduced diameter portion adjacent the open end; a flow restrictor having at least a first fluid passage configured to provide a first restricted flow rate of fluid and a second fluid passage configured to provide a second restricted flow rate of fluid, the flow restrictor being received in the open end of the cylindrical body portion and moveable relative to the body portion so that one of the first fluid passage and the second fluid passage is selectively interposed between the fluid inlet of the body and the fluid outlet of the body to restrict the flow rate of fluid from the fluid inlet of the body to the fluid outlet of the body; and a flow selector coupled to the flow restrictor and positioned adjacent the open end of the cylindrical body portion, the flow selector including a first portion having a diameter larger than a diameter of the reduced diameter portion of the cylindrical body, wherein the cylindrical body includes a first diameter larger than the reduced diameter portion and the diameter of the first portion of the flow selector is substantially equal to the first diameter of the cylindrical body.