System for managing glucose levels in patients with diabetes or hyperglycemia

• US 7,509,156 B2
• Filed: 05/18/2005
• Issued: 03/24/2009
• Est. Priority Date: 05/18/2005
• Status: Active Grant

• Current Assignee: Indiana University Health Incorporated
• Original Assignee: Clarian Health Partners, Inc.
• Inventors: Flanders, Samuel J.
• Primary Examiner(s): Nasser; Robert L
• Assistant Examiner(s): Toth; Karen E
• Application Number:
  US11/131,707
• Publication Number:
  US 20060264895A1
• Time in Patent Office: 1,406 Days
• Field of Search: 604/66, 604/504, 600/347, 600/365
• US Class Current: 600/347
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 5/14 Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
• CPC Class Codes: A61M 5/14212 Pumping with an aspiration and an expulsion action
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 10/40 for data related to laboratory analysis, e.g. patient specimen analysis
• CPC Class Codes: G16H 20/17 delivered via infusion or injection

Abstract

A blood glucose maintenance system for use by hyperglycemic individuals measures their blood glucose level and calculates an appropriate glucose or insulin dosage based on the measurement. Recheck intervals responsive to dosage history are determined. Warning or alert messages or signals are produced if certain measurements or calculations fall outside established normal ranges. It is particularly useful for patients in a hospital or in-patient environment.

Claims

1. A system for maintaining a blood glucose level in an individual comprising:

setup means for establishing a desired range of blood glucose levels for said individual;

measuring means for determining a blood glucose level for said individual;

calculating means responsive to said blood glucose level for determining a proper glucose dosage amount for said individual when said blood glucose level is below said desired range and for determining a proper insulin dosage amount for said individual when said blood glucose level is above said desired range;

delivery means for administering at least one of said glucose dosage amount or said insulin dosage amount to said individual;

evaluation means responsive to said blood glucose level for determining a time interval for said individual after which said individual'"'"'s blood glucose level is to be re-measured;

timing means for generating a signal when said time interval has elapsed; and

estimating means responsive to said calculated glucose dosage amount or said calculated insulin dosage amount, and to at least one criteria associated with said individual, for estimating the accuracy of said calculated dosage amount.

2. The system described in claim 1, further comprising notification means for generating an alert signal when said estimated accuracy is below a predetermined level.

3. The system described in claim 2, wherein said alert signal is auditory.