PUMP ENGINE WITH METERING SYSTEM FOR DISPENSING LIQUID MEDICATION
First Claim
1. An infusion pump system for dispensing liquid medication, comprising:
- a first reservoir for storing liquid medication;
a second reservoir for storing liquid medication;
a first valve configured to control the flow of liquid medication from the first reservoir to the second reservoir;
a second valve configured to control the flow of liquid medication from the second reservoir to an infusion site; and
wherein each of the first and second valves is selectively opened or closed to admit liquid medication from the first reservoir to the second reservoir and to dispense liquid medication from the second reservoir to the infusion site.
1 Assignment
0 Petitions
Accused Products
Abstract
An infusion pump system is disclosed for dispensing liquid medication, such as insulin. The infusion pump system includes a first reservoir for storing liquid medication, a first fluid driver for exerting pressure on the first reservoir, a second reservoir for storing liquid medication, and a second fluid driver for exerting pressure on the second reservoir. One or more valves are used to permit flow of liquid medication from the first reservoir to the second reservoir, and to permit flow of liquid medication from the second reservoir to an infusion site. Each of the valves is selectively opened or closed to fill the second reservoir with liquid medication from the first reservoir and to dispense liquid medication from the second reservoir to the infusion site. A controller and one or more sensors are used to monitor and control the system.
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Citations
37 Claims
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1. An infusion pump system for dispensing liquid medication, comprising:
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a first reservoir for storing liquid medication; a second reservoir for storing liquid medication; a first valve configured to control the flow of liquid medication from the first reservoir to the second reservoir; a second valve configured to control the flow of liquid medication from the second reservoir to an infusion site; and wherein each of the first and second valves is selectively opened or closed to admit liquid medication from the first reservoir to the second reservoir and to dispense liquid medication from the second reservoir to the infusion site. - 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, 35, 36, 37)
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24. An infusion pump system for dispensing liquid medication, comprising:
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a first reservoir for storing liquid medication; a second reservoir for storing liquid medication; a valve configured in a first position to permit the flow of liquid medication from the first reservoir to the second reservoir, and in a second position to permit the flow of liquid medication from the second reservoir to an infusion site; wherein said first and second positions of the valve are controlled by applying or not applying an electrical potential to the valve. - View Dependent Claims (25)
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26. An infusion pump system for dispensing liquid medication, comprising:
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a first reservoir for storing liquid medication; a second reservoir for storing liquid medication; a first valve configured in a first position to permit the flow of liquid medication from the first reservoir to the second reservoir, and in a second position to prevent the flow of liquid medication from the first reservoir to the second reservoir; and a second valve configured in a first position to permit the flow of liquid medication from the second reservoir to an infusion site, and in a second position to prevent the flow of liquid medication from the second reservoir to the infusion site; wherein the positions of the first and second valves are controlled by applying or not applying electrical potentials to said first and second valves. - View Dependent Claims (27)
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28. A method for dispensing liquid medication in an infusion pump system, the method comprising:
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storing liquid medication in a first reservoir transferring liquid medication from the first reservoir to a second reservoir; and transferring liquid medication from the second reservoir to an infusion site; - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification