Power Injector with Ram Retraction
6 Assignments
0 Petitions
Accused Products
Abstract
Various embodiments of syringe plunger driver or ram retraction protocols for a power injector are disclosed. In a first ram retraction protocol (184a), a first ram may be partially retracted (232), followed by a full retraction of a second ram (234), followed by a completion of the retraction of the first ram (238). In a second ram retraction protocol (184b), a first ram may be partially retracted (252), followed by a partial retraction of a second ram (254), and sometime thereafter each of the first and second rams may be completely retracted (260, 262). In a third ram retraction protocol (184c), the first and second rams are simultaneously and partially retracted (272), and sometime thereafter each of the first and second rams are completely retracted (276). In a fourth ram retraction protocol (184d), the first and second rams are simultaneously and fully retracted (292) based upon a programmed input or the like.
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Citations
42 Claims
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1-22. -22. (canceled)
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23. A power injector, comprising:
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a powerhead; first and second syringes interconnected with said powerhead; first and second syringe plunger drivers that are at least interconnectable with said first and second syringes, respectively; and control logic that comprises a syringe plunger driver retraction protocol that is executable in preparation for removal of said first and second syringes from said powerhead and that is in the form of a programmed sequence, wherein said syringe driver retraction protocol is configured to;
a) retract said first syringe plunger driver from a first stopped position toward a first fully retracted position, but stops said first syringe plunger driver at a first intermediate position that is between said first stopped position and said first fully retracted position;
b) and to retract said second syringe plunger driver from a second stopped position toward a second fully retracted position. - View Dependent Claims (29, 30, 31, 32, 34, 35, 36, 37, 38, 39)
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24. A power injector, comprising:
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a powerhead; first and second syringes interconnected with said powerhead; first and second syringe plunger drivers that are at least interconnectable with said first and second syringes, respectively; and control logic that comprises a syringe plunger driver retraction protocol that is executable in preparation for removal of said first and second syringes from said powerhead and that is in the form of a programmed sequence, wherein said syringe driver retraction protocol is configured to;
a) retract said first syringe plunger driver from a first stopped position back toward a first fully retracted position, but stops said first syringe plunger driver at a first intermediate position that is between said first stopped position and said first fully retracted position; and
b) simultaneously retract said second syringe plunger driver from a second stopped position back toward a second fully retracted position, but stops said second syringe plunger driver at a second intermediate position that is between said second stopped position and said second fully retracted position. - View Dependent Claims (33, 40, 41)
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25. A power injector, comprising:
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a powerhead; a first syringe interconnected with said powerhead; a first syringe plunger driver that is at least interconnectable with said first syringe; a graphical user interface; and control logic that comprises a syringe plunger driver retraction protocol that is executable in preparation for removal of said first syringe from said powerhead and that is in the form of a programmed sequence, wherein said control logic is configured to present first and second options on said graphical user interface, wherein said first option is to enable automatic initiation of said syringe plunger driver retraction protocol, and wherein said second option is to enable manual initiation of said syringe plunger driver retraction protocol via user input. - View Dependent Claims (26, 27, 28)
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42-43. -43. (canceled)
Specification