Patent ID: 7326186
Filing Date: 2008-02-05
Classification: A61M,Y10T

Abstract:
1. An injector system comprising: a first source of injection fluid; a first pump device; a second source of medical fluid; a second pump device; a pressure isolation mechanism comprising a housing defining a first inlet port, a second inlet port and an outlet in fluid connection with a patient; a first fluid path in connection with the first source of injection fluid, the first pump device, and the first inlet port of the pressure isolation mechanism; a second fluid path in connection with the second source of medical fluid, the second pump device and the second inlet port of the pressure isolation mechanism; a pressure transducer in connection with the second inlet port of the pressure isolation mechanism; and a fluid control device comprising a first automated valve associated with the first fluid path and disposed downstream of the first pump device and a second automated valve associated with the second fluid path and disposed downstream of the second pump device, the first automated valve adapted to stop flow of the injection fluid to the patient at substantially any pressure and flow rate generated by the first pump device for delivering a sharp bolus of the injection fluid to the patient and the second automated valve adapted to stop flow of the medical fluid to the patient; wherein the pressure isolation mechanism is disposed downstream of the first and second automated valves such that the injection fluid flow as controlled by the first automated valve passes through the first inlet port and the outlet of the pressure isolation mechanism to the patient and the medical fluid flow as controlled by the second automated valve passes through the second inlet port and the outlet of the pressure isolation mechanism to the patient, and further wherein the pressure isolation mechanism is adapted to close the second inlet port to isolate the pressure transducer from the injection fluid flow as it passes through the first inlet port and the outlet of the pressure isolation mechanism to the patient.