US Patent No. 10,169,540

BLOOD GLUCOSE SYSTEM HAVING TIME SYNCHRONIZATION


Patent No. 10,169,540
Issue Date January 01, 2019
Title Blood Glucose System Having Time Synchronization
Inventorship Peter Blasberg, Weinheim (DE)
Assignee Roche Diabetes Care, Inc., Indianapolis, IN (US)

Claim of US Patent No. 10,169,540

1. A blood glucose system for treating a glucose metabolic disorder, comprising:a portable, independent ambulantly operable dosing device for delivering a medicinal agent for the treatment of the glucose metabolic disorder to a body, the dosing device being free from having an integrated time counter for generating relative time values, wherein each relative time value is a time count in relation to a reference instant and is not an actual time, a memory unit in which data sets of dosing quantities and relative time values are stored, and a device for transmitting stored data sets to a data processing apparatus;
a portable, independent ambulantly operable blood glucose measuring device for determining a blood glucose content of the body, the blood glucose measuring device including an integrated time standard, a memory unit in which data sets of blood glucose measurements and associated time values are stored, and a device for transmitting stored data sets to a data processing apparatus; and
wherein the data processing apparatus is for processing data sets of the dosing device and the blood glucose measuring device, the data processing apparatus having a receiving device for receiving the data sets from the dosing device and the blood glucose measuring device, wherein the data processing device has an arithmetic unit for converting the relative time values of the data sets of the dosing device into absolute time values by calculating a difference between the relative time value of the time counter of the dosing device and the associated time value of the time standard of the blood glucose measuring device;
wherein, the data processing apparatus synchronizes the data sets of the dosing device and the data sets of the blood glucose measuring device with one another by adding the difference to the relative time value of the time counter of the dosing device;
wherein the dosing device has a needle and a needle sensor with which it registers whether the needle is in the body during delivery of the medicinal agent, and further operates in a priming mode to evaluate when a bolus is delivered without the needle being injected in the body and marks the data sets accordingly when the bolus is delivered without the needle being injected in the body.