| 主权项 |
1. A medical fluid delivery system comprising:
an injection device comprising a first syringe; a first bulk fluid container; a cassette comprising valving and a first fluid interface, wherein said first bulk fluid container engages said first fluid interface, and wherein said valving is disposable in multiple configurations to provide multiple flowpaths through said cassette; a vacuum source fluidly connected with said vacuum port; and a tubing set extending from said cassette and comprising a fluid discharge end, wherein said first syringe is attached to said tubing set at a location that is spaced from each of said cassette and said fluid discharge end; wherein said valving is disposable in a first configuration to provide a first flowpath through said cassette that fluidly interconnects said vacuum source with said tubing set and thereby said first syringe, wherein said first flowpath is then fluidly isolated from said first fluid interface and thereby said first bulk fluid container, wherein said valving is disposable in a second configuration to provide a second flowpath through said cassette that fluidly interconnects said first fluid interface with said tubing set and thereby said first syringe, and wherein said second flowpath is then fluidly isolated from said vacuum source. |
