Medical Infusion Pump With Power Source Voltage Logging And Method For Logging A Power Source Voltage In A Medical Infusion Pump
First Claim
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1. A medical infusion pump comprising:
- a processor;
a power source having a power source voltage (Vbat) and powering the processor; and
a voltage supervisor which monitors a processor supply voltage (VDD) and responds if the processor supply voltage (VDD) drops to a predetermined response voltage level which is above a reset voltage level of the processor,wherein when the voltage supervisor responds, the processor starts logging the power source voltage (Vbat) in a memory to generate a voltage log, andwherein the memory is designed to maintain the logged data when the power supply by the power source is interrupted to enable retrospective analysis of the voltage log.
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Abstract
A medical infusion pump and a method for logging a power source voltage of a medical infusion pump are disclosed. The medical pump may include a power source, a processor, and a voltage supervisor which responds if a voltage (VDD) drops to a response voltage level which is above a reset voltage level of the processor. When the voltage supervisor responds, the processor start logging the voltage (Vbat) of the power source in a memory, thus generating a voltage log. The memory maintains the logged data when the power supply by the power source is interrupted, thus enabling retrospective analysis of the voltage log.
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Citations
22 Claims
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1. A medical infusion pump comprising:
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a processor; a power source having a power source voltage (Vbat) and powering the processor; and a voltage supervisor which monitors a processor supply voltage (VDD) and responds if the processor supply voltage (VDD) drops to a predetermined response voltage level which is above a reset voltage level of the processor, wherein when the voltage supervisor responds, the processor starts logging the power source voltage (Vbat) in a memory to generate a voltage log, and wherein the memory is designed to maintain the logged data when the power supply by the power source is interrupted to enable retrospective analysis of the voltage log. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for logging a power source voltage (Vbat) of a power source in a medical infusion pump, the medical infusion pump comprising a processor, the power source powering the processor with the power source voltage (Vbat), said method comprising:
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detecting if the processor supply voltage drops to a predetermined response voltage level which is higher than a reset voltage level of the processor; starting to log the voltage (Vbat) of the power source when the processor supply voltage (VDD) has dropped to the predetermined voltage level to generate a voltage log; and maintaining the logged data when the power supply by the power source is interrupted to enable a retrospective analysis of the voltage log.
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Specification