Operating a portable medical device
First Claim
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1. A method of operating a portable medical device for treatment of diabetes, comprising:
- receiving at an external reference system housed in a portable controller device a remotely broadcast external reference signal indicative of a standard time and date which is transmitted from a remote time and date reference source;
wirelessly receiving at the portable controller device sensor data from a body-worn glucose sensor device that is indicative of a sensed glucose level, the body-worn glucose sensor device including a sensor shaft that penetrates into a subcutaneous layer while a sensor housing is adhered to a skin surface, wherein the portable controller device includes a display to show the sensed glucose level and one or more buttons for user interaction;
updating an internal time setting of the portable controller device in response to receiving the remotely broadcast external reference signal; and
in response to wirelessly receiving the sensor data indicative of the sensed glucose level, storing in one or more memory devices of the portable controller device a value of the sensed glucose level and a corresponding time and date at which the sensed glucose level was detected based upon the updated internal time setting of the portable controller device.
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Abstract
Some embodiments of a portable medical device, such as an infusion pump, can receive an external reference signal (e.g., a radio, cellular and/or satellite signal) to provide an automatic time-setting and maintenance operation. In these circumstances, the medical device can maintain accurate time and date information even in the event of a power interruption, a time-zone change and/or an internal clock error, for example. In this manner, the portable medical device provides safe operation and added convenience to the user.
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Citations
13 Claims
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1. A method of operating a portable medical device for treatment of diabetes, comprising:
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receiving at an external reference system housed in a portable controller device a remotely broadcast external reference signal indicative of a standard time and date which is transmitted from a remote time and date reference source; wirelessly receiving at the portable controller device sensor data from a body-worn glucose sensor device that is indicative of a sensed glucose level, the body-worn glucose sensor device including a sensor shaft that penetrates into a subcutaneous layer while a sensor housing is adhered to a skin surface, wherein the portable controller device includes a display to show the sensed glucose level and one or more buttons for user interaction; updating an internal time setting of the portable controller device in response to receiving the remotely broadcast external reference signal; and in response to wirelessly receiving the sensor data indicative of the sensed glucose level, storing in one or more memory devices of the portable controller device a value of the sensed glucose level and a corresponding time and date at which the sensed glucose level was detected based upon the updated internal time setting of the portable controller device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification