Pumping system for intravenous administration of a secondary treatment fluid
First Claim
1. A secondary pumping system for intravenous infusion of a secondary treatment fluid to a patient in combination with a primary treatment fluid administration set, said primary set having a primary fluid source, a primary fluid control unit and a primary fluid line providing a primary fluid pathway from said primary fluid control unit, said secondary pumping system comprising:
- a self-contained pumping unit having a secondary fluid reservoir and a secondary fluid pump integrated into a single compartment, wherein said secondary treatment fluid is pumped from said secondary fluid reservoir under the contractive force of a stretched elastic membrane, said elastic membrane forming a wall of said secondary fluid reservoir;
a secondary fluid outlet port in said pumping unit;
a secondary fluid line having two ends, a first end connected to said secondary fluid outlet port and a second end at a distance therefrom to form a secondary fluid pathway, said secondary fluid pathway mergable with said primary fluid pathway;
means for restricting flow through said secondary fluid line;
a unitary housing containing said flow restricting means and said pumping unit;
a continuous fitting receiving said second end of secondary fluid line and further receiving said primary fluid line to merge said secondary fluid pathway and said primary fluid pathway; and
a common fluid line providing a continuous common fluid pathway from said fitting to the patient.
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Accused Products
Abstract
A pumping system is provided for administering a secondary treatment fluid to a patient intravenously in cooperation with a primary treatment fluid administration set already in place. The system includes a self-contained pumping unit having a pumping chamber and a secondary treatment fluid reservoir integral therewith. A secondary fluid line extending from the unit merges with a primary fluid line at a fitting for delivery of the fluids carried in the primary and secondary lines to the patient via a combined IV line.
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Citations
12 Claims
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1. A secondary pumping system for intravenous infusion of a secondary treatment fluid to a patient in combination with a primary treatment fluid administration set, said primary set having a primary fluid source, a primary fluid control unit and a primary fluid line providing a primary fluid pathway from said primary fluid control unit, said secondary pumping system comprising:
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a self-contained pumping unit having a secondary fluid reservoir and a secondary fluid pump integrated into a single compartment, wherein said secondary treatment fluid is pumped from said secondary fluid reservoir under the contractive force of a stretched elastic membrane, said elastic membrane forming a wall of said secondary fluid reservoir; a secondary fluid outlet port in said pumping unit; a secondary fluid line having two ends, a first end connected to said secondary fluid outlet port and a second end at a distance therefrom to form a secondary fluid pathway, said secondary fluid pathway mergable with said primary fluid pathway; means for restricting flow through said secondary fluid line; a unitary housing containing said flow restricting means and said pumping unit; a continuous fitting receiving said second end of secondary fluid line and further receiving said primary fluid line to merge said secondary fluid pathway and said primary fluid pathway; and a common fluid line providing a continuous common fluid pathway from said fitting to the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification