INJECTOR SYSTEM AND FLUID CONTROL DEVICE PROVIDING AIR PURGING AND SHARP BOLUS INJECTION
First Claim
1. An injector system comprising:
- a source of injection fluid;
a pump device;
a fluid path set disposed between the source of injection fluid and the pump device;
a fluid control device operatively associated with the fluid path set and adapted to stop the flow of the injection fluid to a patient at substantially any pressure or flow rate generated by the pump device for delivering a sharp bolus of the injection fluid to the patient; and
a hand held control device for controlling the flow rate of the injection fluid, the hand held control device comprising a piston slideably disposed within a chamber and adapted to engage a switch that controls the flow rate of the injection fluid.
1 Assignment
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Accused Products
Abstract
An injector system includes a source of injection fluid, a pump device, a fluid path set disposed between the source of injection fluid and the pump device, a fluid control device operatively associated with the fluid path set and a hand held control device for controlling the flow rate of the injection fluid. The hand held control device includes a piston slideably disposed within a chamber and adapted to engage a switch that controls the flow rate of the injection fluid. The fluid control device is adapted to permit purging of air from the fluid path set and to stop flow of the injection fluid to a patient at substantially any pressure or flow rate generated by the pump device for delivering a sharp bolus of the injection fluid to the patient. The fluid control device is preferably part of the fluid path set between the source of injection fluid and the pump device.
66 Citations
10 Claims
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1. An injector system comprising:
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a source of injection fluid;
a pump device;
a fluid path set disposed between the source of injection fluid and the pump device;
a fluid control device operatively associated with the fluid path set and adapted to stop the flow of the injection fluid to a patient at substantially any pressure or flow rate generated by the pump device for delivering a sharp bolus of the injection fluid to the patient; and
a hand held control device for controlling the flow rate of the injection fluid, the hand held control device comprising a piston slideably disposed within a chamber and adapted to engage a switch that controls the flow rate of the injection fluid. - View Dependent Claims (2, 3, 4)
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5. A method of purging air from a fluid delivery system comprising a source of injection fluid, a pump device, and a fluid path set comprising a fluid control device disposed between the source of injection fluid and the pump device, the method comprising:
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actuating the fluid control device to permit fluid communication between the pump device and the source of injection fluid;
actuating the pump device to draw injection fluid from the source of injection fluid into the pump device; and
actuating the pump device in a different mode to purge air from the fluid path set into the source of injection fluid. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification