Infusion pump having power-saving modes
First Claim
1. An infusion apparatus for infusing liquid into a patient, said infusion apparatus comprising:
- a source of battery power;
a pump powered by said source of battery power and adapted to pump liquid through a conduit;
a controller that performs a plurality of processing tasks related to the pumping of liquid through said conduit, said controller being operable in a normal mode of operation utilizing a first rate of power consumption from said source of battery power; and
control means for causing said controller to operate in a first power-saving mode of operation utilizing a second rate of power consumption from said source of battery power, said second rate of power consumption being lower than said first rate of power consumption, said control means causing said controller to periodically operate in said first power-saving mode of operation at a first frequency,said control means including means for causing said controller to operate in a second power-saving mode of operation utilizing a third rate of power consumption from said source of battery power, said third rate of power consumption being lower than said first rate of power consumption, said control means causing said controller to periodically operate in said second power-saving mode of operation at a second frequency, said second frequency being different than said first frequency.
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Accused Products
Abstract
An infusion apparatus having a pump powered by a source of battery power and a controller that performs a plurality of processing tasks related to the pumping of liquid through a conduit. The controller is operable in a normal mode of operation utilizing a first rate of power consumption from the source of battery power. The infusion apparatus includes control means for causing the controller to operate in a first power-saving mode of operation utilizing a second rate of power consumption, the second rate of power consumption being lower than the first rate of power consumption, and the control means causes the controller to operate in a second power-saving mode of operation utilizing a third rate of power consumption, the third rate of power consumption being lower than the first rate of power consumption. The controller may operate in the first power-saving mode of operation at a first frequency, such as every second, while the controller operates in the second power-saving mode of operation at a different frequency, such as 50 times per second. In the first power-saving mode of operation, the controller may operate in an idle mode in which it does not execute any of its processing tasks but in which its internal clocks remain running. In the second power-saving mode of operation, the controller may operate in a sleep mode in which it does not execute any of its processing tasks and in which none of its internal clocks are running.
315 Citations
15 Claims
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1. An infusion apparatus for infusing liquid into a patient, said infusion apparatus comprising:
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a source of battery power; a pump powered by said source of battery power and adapted to pump liquid through a conduit; a controller that performs a plurality of processing tasks related to the pumping of liquid through said conduit, said controller being operable in a normal mode of operation utilizing a first rate of power consumption from said source of battery power; and control means for causing said controller to operate in a first power-saving mode of operation utilizing a second rate of power consumption from said source of battery power, said second rate of power consumption being lower than said first rate of power consumption, said control means causing said controller to periodically operate in said first power-saving mode of operation at a first frequency, said control means including means for causing said controller to operate in a second power-saving mode of operation utilizing a third rate of power consumption from said source of battery power, said third rate of power consumption being lower than said first rate of power consumption, said control means causing said controller to periodically operate in said second power-saving mode of operation at a second frequency, said second frequency being different than said first frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An infusion apparatus for infusing liquid into a patient, said infusion apparatus comprising:
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a source of battery power; a pump powered by said source of battery power and adapted to pump liquid through a conduit; a motor coupled to drive said pump; a controller that performs a plurality of processing tasks related to the pumping of liquid through said conduit; and control means for causing said pump to operate in an intermittent infusion mode in which said pump delivers a plurality of infusions spaced apart by a plurality of time intervals, each of said time intervals being at least about five minutes in duration, said control means causing said motor to drive said pump between said plurality of time intervals and not to drive said pump during said time intervals, said control means including means for causing said controller to operate in a power-saving mode of operation during each of said time intervals. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification