Blood glucose control apparatus and method
US4464170A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1982 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Sep 29, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/13
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a method and apparatus for controlling the concentration of glucose in the blood stream of a subject at a desired level (BI) including controlling the supply of insulin (IR) by periodically measuring the blood glucose concentration (G) and selecting a predetermined basal infusion rate (RI) for the desired level, the step of selecting a predetermined basal infusion rate comprises periodically searching for the value of the basal infusion rate RI required for BI in accordance with EQU RI=RI.sub.LAST (GY/BI) where (GY) is the present blood glucose level corrected to fit a least squares regression line, when the slope of the least squares regression line fit for the last five G values is less than 0.5 and GY is within .+-.50% of the desired BI level, and wherein the period between searches is equal to or greater than the period between glucose measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.