Apparatus and method for administration of IV liquid medication and IV flush solutions
First Claim
1. A method for medical liquid administration to a patient, comprising:
- establishing an interconnection between a flush solution source and a syringe, and an interconnection between said syringe and a vascular catheter;
drawing flush solution from said flush solution source into a sterile syringe body of said syringe;
flowing said flush solution from said syringe through said vascular catheter to a patient utilizing said interconnection between the syringe and the vascular catheter;
infusing a liquid medication through said vascular catheter to a patient while maintaining said interconnection between said flush solution source and said syringe; and
maintaining the sterility of said syringe body during said flowing and infusing steps.
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Accused Products
Abstract
The present invention provides a medical liquid administration apparatus and administration method that are particularly apt for intravenous (IV) applications. More particularly, the administration apparatus and method may be employed in conjunction with the administration of liquid medication and one or more flush solutions from multi-dose sources, wherein fluid interconnections between at least one flush solution source and the administration apparatus may be established a single time at the outset of a given procedure. The administration apparatus may include a valve having a control member selectively positionable to provide any selected one of a plurality of closed flow paths through the valve, and a syringe interconnected to the control member for clockwise/counterclockwise co-rotation therewith (e.g. to establish the selected flow path). The valve may include a valve housing have a plurality of ports, wherein in one arrangement at least two of the ports have corresponding center axes lying in offset first and second planes. Correspondingly, the control member may include an internal passageway extending between a plurality of apertures, wherein at least two of the apertures have center axes lying in said offset first and second planes. By selectively rotating the control member, different fluid paths may be established between different ones of the valve housing ports, thereby facilitating closed-path passage of a liquid medication and one or more flush solutions therethrough. In particular, the flush solution(s) and liquid medication may be passed sequentially into the interconnected syringe for subsequent manual administration by medical personnel.
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Citations
44 Claims
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1. A method for medical liquid administration to a patient, comprising:
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establishing an interconnection between a flush solution source and a syringe, and an interconnection between said syringe and a vascular catheter;
drawing flush solution from said flush solution source into a sterile syringe body of said syringe;
flowing said flush solution from said syringe through said vascular catheter to a patient utilizing said interconnection between the syringe and the vascular catheter;
infusing a liquid medication through said vascular catheter to a patient while maintaining said interconnection between said flush solution source and said syringe; and
maintaining the sterility of said syringe body during said flowing and infusing steps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for medical liquid administration to a patient, comprising:
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establishing an interconnection between a flush solution source and a syringe, an interconnection between said syringe and a vascular catheter, and an interconnection between a source of liquid medication and said vascular catheter;
drawing flush solution from said flush solution source into a sterile syringe body of said syringe;
flowing said flush solution from said syringe through said vascular catheter to a patient;
infusing a liquid medication from said source of liquid medication through said vascular catheter to a patient while maintaining said interconnection between said flush source and said syringe; and
utilizing said syringe, at least one of before and after at least one of said flowing step and said infusing step, to draw fluid into said vascular catheter from said patient and to infuse said fluid back into said patient. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification