Patent ID: 7766859

Claim:
A catheter hub comprising: a first lumen extending therethrough from a first proximal port to a first distal opening; a second lumen extending therethrough from a second proximal port to a second distal opening; a transverse bore in fluid communication with the first and second lumens; a first occluding device slidably received within the transverse bore for movement between an occluding position preventing flow through the first lumen and an open position opening the first lumen to fluid flow, wherein the first occluding device includes a first magnetically polarized element slidably supported within the transverse bore; a second occluding device slidably received within the transverse bore for movement between an occluding position preventing flow through the second lumen and an open position opening the second lumen to fluid flow; a first biasing element positioned in alignment with the transverse bore on a side of the first lumen opposite the first occluding device urging the first occluding device into the occluding position; a second biasing element positioned in alignment with the transverse bore on a side of the second lumen opposite the second occluding device urging the second occluding device into the occluding position; a first peripheral chamber which, when the first occluding device is in the occluding position, remains fluidly coupled to a portion of the first lumen extending proximally therefrom, the first peripheral chamber in alignment with the transverse bore so that fluid pressure applied to the first proximal port acts on an end of the first occluding device so that application of at least a predetermined threshold fluid pressure to the first proximal port moves the first occluding device to the open position; and a second peripheral chamber which, when the second occluding device is in the occluding position, remains fluidly coupled to a portion of the second lumen extending proximally therefrom, the second peripheral chamber in alignment with the transverse bore so that fluid pressure applied to the second proximal port acts on an end of the second occluding device so that application of at least a predetermined threshold fluid pressure to the second proximal port moves the second occluding device to the open position.