SYRINGE PLUNGER SENSING MECHANISM FOR A MEDICAL INJECTOR
First Claim
1. An injector system for injecting fluid from at least one syringe mounted thereon, the syringe having a plunger slidably disposed therein, the injector system comprising:
- a housing;
at least one drive member at least partially disposed within the housing and operable to engage the plunger of the syringe; and
at least one syringe retaining mechanism associated with the housing, the syringe retaining mechanism adapted to releasably engage the syringe.
3 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of an injector, syringe, syringe interface, syringe adapter, and piston/plunger assembly for an injector (of contrast medium, for example) are described. Preferably, the syringe is adapted to engage a syringe interface mechanism such that the syringe may be connected to an injector without regard to any particular orientation of the syringe to the injector or to the piston/plunger assembly. The injector piston or drive member includes a sensing pin positioned at a forward end thereof to sense contact with the syringe plunger during advancement of the piston or drive member to contact the plunger. The piston can be advanced automatically upon connection of, for example, the syringe to the injector, or piston advance can be automated to occur after operator initiation. The injector may include or be adapted to accommodate two syringes, which for example provide for simultaneous injection of fluid into separate injection sites on a patient.
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Citations
17 Claims
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1. An injector system for injecting fluid from at least one syringe mounted thereon, the syringe having a plunger slidably disposed therein, the injector system comprising:
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a housing; at least one drive member at least partially disposed within the housing and operable to engage the plunger of the syringe; and at least one syringe retaining mechanism associated with the housing, the syringe retaining mechanism adapted to releasably engage the syringe. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of injecting fluids into a patient to a region of interest within the patient, the method comprising:
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injecting a first fluid into a first injection site on the patient suitable to transport the first fluid to the region of interest; and injecting a second fluid into a second injection site on the patient suitable to transport the second fluid to the region of interest. - View Dependent Claims (8, 9)
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10. An injector for injecting fluid from at least one syringe mounted thereon, the syringe having a plunger slidably disposed therein, the injector comprising:
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a housing; at least one drive member at least partially disposed within the housing and operable to engage the plunger of the syringe; at least one syringe retaining mechanism associated with the housing, the syringe retaining mechanism adapted to releasably engage the syringe; a first control unit positioned in a control room, the first control unit enabling setting of an injection protocol; and a second control unit positioned in a scan room, the second control unit comprising at least one indicator of whether the injection protocol set with the first control unit has been changed or a state of a lock function. - View Dependent Claims (11)
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12. An injector for injecting fluid from at least one syringe mounted thereon, the syringe having a plunger slidably disposed therein, the injector comprising:
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a housing; at least one drive member at least partially disposed within the housing and operable to engage the plunger of the syringe; and at least one syringe retaining mechanism associated with the housing, the syringe retaining mechanism adapted to releasably engage the syringe; a control system configured to control the at least one drive member; at least one mode operable from the control system, wherein the mode of operation are selected from the group consisting of at least one of a sequential injection mode or a simultaneous injection mode. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification