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Method for transmitting data in a blood glucose system and corresponding blood glucose system

A blood sugar and data technology, applied in the field of blood sugar system, can solve the problem of uneven distribution of communication

Inactive Publication Date: 2009-06-17
LIFESCAN SCOTLAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this mechanism cannot be advantageously applied in a wireless blood glucose system where communication between the controller and other devices of the system occurs only occasionally, so that the traffic distribution is very non-uniform

Method used

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  • Method for transmitting data in a blood glucose system and corresponding blood glucose system
  • Method for transmitting data in a blood glucose system and corresponding blood glucose system
  • Method for transmitting data in a blood glucose system and corresponding blood glucose system

Examples

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Embodiment Construction

[0052] exist Figure 1a In , a blood glucose system 1 is schematically shown comprising a controller 2, an insulin pump 3 for administering insulin into the blood circulation of a patient, and a blood glucose measuring device 4 for determining blood glucose levels. The controller 2 comprises a housing 5, a display 6 and a plurality of control keys 7 which can be used to initiate specific actions of the controller 2 or to enter data into the controller 2, e.g. her weight, adjust the operation of the insulin pump 3. Figure 2a The other main components of the controller 2 are described in the schematic block diagram shown. Accordingly, the controller 2 further comprises a battery 8 , a transmitter 9 , a receiver 10 , an antenna 11 coupled to the transmitter 9 and receiver 10 , and a clock 23 . The operation of the controller 2 is controlled by control electronics 12 . In particular, the control electronics 12 can be used to compose data frames to be transmitted by the transmit...

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Abstract

The present invention relates to a method for wireless transmission of data between components of a blood glucose system (1, I1) including a master controller (2, 2') having a receiver (10) and a transmitter (9), and at least one slave device (3) having a receiver (19) and a transmitter (18), and to a corresponding blood glucose system (1, I1) The slave device (3) is normally operated in a power saving mode in which its receiver (19) is only activated intermittently at a receiver activation frequency for a predetermined listening period. The controller (2, 21) transmits a communication initiation data frame to the slave device (3) by means of a signal comprising a preamble signal transmitted for a preamble period. Upon receipt of the communication initiation data frame, the slave device (3) is switched to a communication mode in which it transmits a response to the controller (2, 21), and the slave device (3) is switched from the communication mode to the power saving mode. Initially the receiver activation frequency is set to a first frequency value upon switching from communication mode to power saving mode, and then to a second frequency value smaller than the first frequency value if no communication initiation data frame is received for a predetermined power saving timeout period. The communication initiation data frame is transmitted such that the preamble period exceedsthe length of the cycle duration corresponding to the first frequency value, and, in case no response is received by the controller during the response period, the communication initiation data frameis adapted and retransmitted such that the preamble period is increased and exceeds the length of the cycle duration corresponding to the second frequency value.

Description

technical field [0001] The invention relates to a method for wireless transmission of data between components of a blood glucose system comprising a master controller and a slave device comprising an insulin dispensing device, and to a corresponding blood glucose system. Background technique [0002] Diabetes mellitus is a chronic metabolic disorder caused by the inability of the pancreas to produce sufficient amounts of the hormone insulin so that the metabolism cannot provide normal sugar absorption and starch absorption. This defect leads to hyperglycemia, ie excess glucose in the blood plasma. Persistent hyperglycemia causes multiple severe symptoms and life-threatening long-term complications such as dehydration, ketoacidosis, diabetic coma, cardiovascular disease, chronic renal failure, retinal damage, and nerve damage with risk of amputation. Since a cure is not yet possible, long-term treatment is necessary, which provides continuous glycemic control so that blood s...

Claims

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Application Information

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IPC IPC(8): H04L12/56A61M5/142
CPCA61B5/4839A61M2230/201H04W52/0216A61B5/0002A61M5/1723A61M5/14244A61B2560/0209A61B5/14532Y02B60/50A61M2205/3569H04W52/0225H04B7/24Y02D30/70
Inventor M·埃布纳U·克拉夫特
Owner LIFESCAN SCOTLAND
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