Patent ID: 8790316
Filing Date: 2014-07-29
Classification: A61M,F04B,G01F

Abstract:
1. A dosing device for an infusion system comprising a dosing unit configured as a cylinder, the dosing unit comprising: a variable volume, wherein the variable volume may be incrementally varied; a supply opening operable to be open or closed, so as to enable a substance to be supplied to the variable volume through the supply opening only when the supply opening is open; and a dispensing opening operable to be open or closed, so as to enable the substance to be dispensed from the variable volume through the dispensing opening to a dispensing unit of the infusion system only when the dispensing opening is open, the dosing unit being operable only in a first state in which the supply opening is open and the dispensing opening is closed, in a second state in which the supply opening and the dispensing opening both are closed, or in a third state in which the supply opening is closed and the dispensing opening is open, wherein the dosing unit is operable to be rotated, displaced, or both, to select the first state, the second state, or the third state.