Generation of target glucose values for a closed-loop operating mode of an insulin infusion system
US9878096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2013 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Oct 24, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16Z99/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A controller for an insulin infusion device includes at least one processor device and at least one memory element that cooperate to provide a processor-implemented closed-loop start-up module. The start-up module is operated to initiate a closed-loop mode of the infusion device and to obtain a most recent sensor glucose value for the user. The start-up module also calculates a difference between the most recent sensor glucose value and a target glucose setpoint value. When the difference is less than or equal to a threshold value, the closed-loop insulin infusion rate is adjusted over time, based on a fixed final target glucose value that is derived from the target glucose setpoint value. When the difference is greater than the threshold, the infusion rate is adjusted over time, based on a dynamic final target glucose value that decreases over time toward the target glucose setpoint value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.