Power management techniques for an infusion pump system
First Claim
1. A method of administering medicinal fluid to a patient, the method comprising:
- supplying a pattern of multiple voltage pulses from a rechargeable energy source to a drive system of a pump device to activate the drive system during a predetermined actuation time and dispense medicinal fluid from the pump device, a controller device changing a width or frequency of the multiple pulses in the pattern to apply during the predetermined actuation time in response to detecting that the drive system completed a medicine dispensing operation in less time or more time than the predetermined actuation time;
charging the rechargeable energy source with energy from a replaceable battery to maintain the rechargeable energy source at a charge level greater than a threshold charge level when the replaceable battery is in a non-depleted state;
adjusting the pattern of multiple voltage pulses to apply during the predetermined actuation time based on a voltage of the rechargeable energy source; and
outputting a user alert indicative of a remaining power supply based at least partially on the threshold charge level when the replaceable battery is in a depleted state or disconnected from electrical communication with the rechargeable energy source.
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Accused Products
Abstract
Some embodiments of an infusion pump system can employ a number of power management techniques to avoid using substantially excessive power during operation of the pump drive system. Thus, the infusion pump system can draw upon the energy supply in an efficient manner that extends the useful life on the power supply. Furthermore, the infusion pump system can be configured estimate an amount of power remaining to operate the pump system without the requirement of directly detecting the remaining charge on power supply device (e.g., without detecting the remaining charge on a battery). As such, the infusion pump system can readily inform a user of a particular estimated amount of time remaining for medicine dispensing operations.
313 Citations
20 Claims
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1. A method of administering medicinal fluid to a patient, the method comprising:
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supplying a pattern of multiple voltage pulses from a rechargeable energy source to a drive system of a pump device to activate the drive system during a predetermined actuation time and dispense medicinal fluid from the pump device, a controller device changing a width or frequency of the multiple pulses in the pattern to apply during the predetermined actuation time in response to detecting that the drive system completed a medicine dispensing operation in less time or more time than the predetermined actuation time; charging the rechargeable energy source with energy from a replaceable battery to maintain the rechargeable energy source at a charge level greater than a threshold charge level when the replaceable battery is in a non-depleted state; adjusting the pattern of multiple voltage pulses to apply during the predetermined actuation time based on a voltage of the rechargeable energy source; and outputting a user alert indicative of a remaining power supply based at least partially on the threshold charge level when the replaceable battery is in a depleted state or disconnected from electrical communication with the rechargeable energy source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of administering medicinal fluid to a patient, the method comprising:
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supplying a pattern of multiple voltage pulses from a rechargeable energy source to a drive system of a pump device to activate the drive system during a predetermined actuation time and dispense medicinal fluid from the pump device, a controller device changing a width or frequency of the multiple pulses in the pattern to apply during the predetermined actuation time in response to detecting that the drive system completed a medicine dispensing operation in less time or more time than the predetermined actuation time; charging the rechargeable energy source with energy from a replaceable battery to maintain the rechargeable energy source at a charge level greater than a threshold charge level when the replaceable battery is in a non-depleted state; and outputting a user alert indicative of a remaining power supply based at least partially on the threshold charge level when the replaceable battery is in a depleted state or disconnected from electrical communication with the rechargeable energy source. - View Dependent Claims (18, 19, 20)
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Specification