Disposable ambulatory infusion pump assembly
First Claim
1. A disposable ambulatory infusion pump assembly for delivering fluid intravenously to a patient comprisinga pump means for supplying a continuous unrestricted pressurized flow of fluid;
- a first line in direct communication with said pump means for conveying the pressurized flow of fluid therethrough;
a restrictor fixed within one portion of said line and within the flow of fluid for restricting the rate of the flow of fluid through said line;
a connector having a first inlet port in communication with said line to receive the flow of fluid therefrom and having an outlet port for connection to a catheter in a patient;
a second line connected in parallel with said portion of said first line to convey a flow of fluid from said pump means to said inlet port of said connector at an unrestricted rate of flow relative to said rate of flow in said first line; and
means in said second line for selectively opening and closing said second line to a flow of fluid therethrough.
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Accused Products
Abstract
The disposable ambulatory infusion pump assembly includes a line through which there is a restricted flow of fluid from a pump to a T- or Y-Site connector. The flow is sufficient to keep the vein of a patient opened, for example, using a flow rate of 0.5 cubic centimeters per hour. A second line is disposed in parallel to the first line to convey fluid from the pump to the T-connector at a higher flow rate and a clamp is provided for opening and closing the second line. Opening of the clamp permits the line to the T-connector to be primed when desired. Opening of the clamp also permits flushing of the T-connector and following lines after injection of a medication dose through the injection port of the T-connector. A restrictor may also be disposed in the line with a valve actuator to move the restrictor from a valve seat in the line to allow a greater flow of fluid about the restrictor than through the restrictor.
62 Citations
14 Claims
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1. A disposable ambulatory infusion pump assembly for delivering fluid intravenously to a patient comprising
a pump means for supplying a continuous unrestricted pressurized flow of fluid; -
a first line in direct communication with said pump means for conveying the pressurized flow of fluid therethrough; a restrictor fixed within one portion of said line and within the flow of fluid for restricting the rate of the flow of fluid through said line; a connector having a first inlet port in communication with said line to receive the flow of fluid therefrom and having an outlet port for connection to a catheter in a patient; a second line connected in parallel with said portion of said first line to convey a flow of fluid from said pump means to said inlet port of said connector at an unrestricted rate of flow relative to said rate of flow in said first line; and means in said second line for selectively opening and closing said second line to a flow of fluid therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A disposable ambulatory infusion pump assembly for delivering fluid intravenously to a patient comprising
a pump means for supplying a pressurized flow of fluid; -
a first connector having an inlet port communicating with said pump means to receive a flow of fluid therefrom, a first outlet port communicating with said inlet port and a second outlet port communicating with said inlet port; a first line extending from said first outlet port for conveying a flow of fluid at a first rate of flow therethrough; a second line extending from said second outlet port for conveying a flow of fluid at a second rate of flow higher than said first rate of flow; means in said second line for selectively opening and closing said second line to a flow of fluid therethrough; a second connector having a pair of inlet ports communicating with said respective first and second lines and an outlet port communicating with said pair of inlet ports; a third line extending from said outlet port of said second connector; and a third connector having an inlet port connected to said third line to receive a flow of fluid therefrom and an outlet port for discharging the flow of fluid therefrom. - View Dependent Claims (9, 10, 11, 12)
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13. A disposable ambulatory infusion pump assembly for delivering fluid intravenously to a patient comprising
a pump means for supplying a continuous unrestricted pressurized flow of fluid; -
a first line in direct communication with said pump means for conveying the pressurized flow of fluid therethrough at a first rate of flow; a second line connected in parallel with said first line for conveying a flow of fluid from said pump means at a second rate of flow higher than said first rate of flow; a third line connected in common to said first and second lines to receive a flow of fluid from each said line; a connector having an inlet port connected to said third line to receive a flow of fluid therefrom and an outlet port communicating with said inlet port to discharge fluid; and means in said second line for selectively opening and closing said second line to a flow of liquid therethrough whereby with said means opening said second line, a flow of fluid is passed through said connector to prime said third line. - View Dependent Claims (14)
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Specification