Electrical device power management
AssigneeCovidien LP
InventorsMatthew John Ross McGrath, Peter Douglas Colin Inglis, Brian Alan Laffoley
Life of this patent
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Abstract
An electrical device includes a memory storing a value indicative the remaining available rated capacity of one or more batteries. The stored value is changed in use to reflect reducing capacity. The initial stored value is chosen so that there is a very high (e.g. >99.9%) confidence that the one or more batteries will provide at least the capacity indicated by the initial stored value. This reduces the chance of failure during emergency procedures. The one or more batteries may be integral to the electrical device. An override facility is provided.
Claims14
A method, comprising:
- accessing a first value indicative of a remaining available rated capacity of a first battery pack of a video laryngoscope;
- displaying the first value on a display screen of the video laryngoscope;
- updating the first value to reflect a first power consumption from the first battery pack resulting from operation of the video laryngoscope;
- powering down the video laryngoscope;
- accessing a second value indicative of a remaining available rated capacity of a second battery pack of the video laryngoscope in response to powering up the video laryngoscope after the powering down;
- displaying the second value on the display screen of the video laryngoscope;
- and
- updating the second value to reflect a second power consumption from the second battery pack resulting from additional operation of the video laryngoscope.
A method, comprising:
- accessing a first value stored in a memory of a video laryngoscope, wherein the first value is indicative of a remaining available rated capacity of a first battery pack of the video laryngoscope;
- displaying a first graphical indicator of the first value on a display screen of the video laryngoscope;
- powering down the video laryngoscope;
- accessing a second value stored in the memory of the video laryngoscope, wherein the second value is indicative of a remaining available rated capacity of a second battery pack in response to powering up the video laryngoscope after the powering down;
- and
- displaying a second graphical indicator of the second value on the display screen of the video laryngoscope.
Dependencies are inferred from the claim text.