Power Injector with Decay Constant Functionality
First Claim
Patent Images
1. A power injector comprising:
- a syringe plunger driver comprising a motorized drive source;
a syringe comprising a syringe plunger, wherein said syringe plunger driver interacts with said syringe plunger to move said syringe plunger within said syringe in at least a first direction;
power injector control logic comprising an injection protocol that in turn comprises a flow rate decay constant; and
data storage accessible by said power injector control logic and comprising a plurality of data entries, wherein each said data entry comprises a different flow rate decay constant value.
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Abstract
A power injector (154) is disclosed that may utilize decay constant determination logic (192). This logic (192) in turn may incorporate a test injection protocol (194). The test injection protocol (194) may be executed to acquire data for the derivation of a flow rate decay constant. The derived flow rate decay constant may be used by the power injector (154) to execute of an injection protocol (162), for instance in conjunction with an operation of an imaging unit (152) for an imaging operation.
25 Citations
48 Claims
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1. A power injector comprising:
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a syringe plunger driver comprising a motorized drive source; a syringe comprising a syringe plunger, wherein said syringe plunger driver interacts with said syringe plunger to move said syringe plunger within said syringe in at least a first direction; power injector control logic comprising an injection protocol that in turn comprises a flow rate decay constant; and data storage accessible by said power injector control logic and comprising a plurality of data entries, wherein each said data entry comprises a different flow rate decay constant value. - View Dependent Claims (3, 4, 5, 6)
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2. (canceled)
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7. A power injector comprising:
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a syringe plunger driver comprising a motorized drive source; a syringe comprising a syringe plunger, wherein said syringe plunger driver interacts with said syringe plunger to move said syringe plunger within said syringe in at least a first direction; power injector control logic comprising an injection protocol that in turn comprises a decay constant, wherein said power injector control logic further comprises decay constant determination logic. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for acquiring a medical image with an imaging system comprising a power injector and an imaging unit, said method comprising:
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searching for a first value for a flow rate decay constant based upon a model of said imaging unit; inputting said first value to said power injector; and delivering an injection with said power injector and using said first value. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A method for acquiring a medical image with an imaging system comprising a power injector and an imaging unit, said method comprising:
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delivering a first injection into a patient; monitoring said first injection; deriving a flow rate decay constant from said monitoring step; and delivering a second injection into said patient, wherein said second injection comprises using said flow rate decay constant. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A power injector comprising:
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a syringe plunger driver comprising a motorized drive source; a syringe comprising a syringe plunger, wherein said syringe plunger driver interacts with said syringe plunger to move said syringe plunger within said syringe in at least a first direction; power injector control logic comprising an injection protocol that in turn comprises a flow rate decay constant; and data storage accessible by said power injector control logic and comprising a plurality of data entries, wherein each said data entry comprises a flow rate decay constant value associated with an imaging device identifier. - View Dependent Claims (45, 46, 47, 48)
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Specification