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Multiple temperature measurements coupled with modeling

A technology for measuring components and temperature sensors, applied in thermometer testing/calibration, thermometers, measuring heat, etc., can solve problems such as impractical and high-power batteries

Inactive Publication Date: 2012-07-11
LIFESCAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For an instrument attempting to control the temperature of the reaction zone, if the biosensing instrument is battery driven, controlling the temperature of the reaction zone becomes impractical as this would draw excessive power from the instrument battery
Furthermore, certain methods such as those described in U.S. Patent No. 7,407,811 do not provide a general solution to the problem of estimating ambient temperature; the methods described in this patent are designed to be used with specific blood glucose test strips if the test strip chemistry or test strip geometry changes, the disclosed algorithm must be modified

Method used

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  • Multiple temperature measurements coupled with modeling
  • Multiple temperature measurements coupled with modeling
  • Multiple temperature measurements coupled with modeling

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0059] Example 1 - Convection System

[0060]An exemplary system designed as a convection system for increasing the exposure of the second temperature sensor to air from the surrounding environment was tested with a climatic chamber. A chamber enclosing the second temperature sensor is formed with foam rubber insulation to increase heat transfer resistance between the second temperature sensor and the remainder of the system interior space defined by the housing. An opening in the housing is used to allow air flow from the surrounding environment into the chamber and allow warm air close to the second temperature sensor to be displaced. The first temperature sensor is placed on the circuit board, and the interior space within the housing is divided by heat insulating material into two main parts: M1, in which the first temperature sensor, the circuit board and the chamber containing the second temperature sensor are located; and M2 , where a heat source comprising a resisto...

example 2

[0061] Example 2 - System for increasing effective surface contact area with surrounding environment

[0062] A climatic chamber was used to test an exemplary system designed to increase the effective surface contact area between the second temperature sensor and the surrounding environment. The experimental system consisted of a housing with an opening provided with a brass plate having a thickness of about 0.5 mm. A second temperature sensor is mounted on this brass plate, and the sensor / plate structure is enclosed within a chamber defined by thermal insulation. The insulating material defining the chamber is a layer of plastic housing material, ie a layer of plastic of the same type as that used to form the housing. Resistors with external power supply to achieve approximately 1.4W power dissipation are placed within the interior space defined by the housing, enclosing therein the exterior of the chamber of the sensor / board configuration. The heat source was switched on...

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PUM

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Abstract

The present invention is directed to, inter alia, systems and methods for calculating a temperature associated with an analyte measurement component of a biosensing instrument (such as a blood glucose monitor), with a test strip that is inserted in a biosensing instrument, or both. The present systems and methods may employ at least two temperature sensors, and the acquired temperature information may be used to modulate data regarding an analyte in a biological sample, thereby providing a more accurate measurement of the analyte.

Description

[0001] Related patent application cross-reference [0002] This patent application claims priority to US Provisional Patent Application No. 61 / 106,994, filed October 21, 2008, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to detection of analyte levels by medical diagnostic systems such as blood glucose meters. Background technique [0004] Biosensing instruments are used to detect various analytes (such as glucose and cholesterol) in blood samples. For example, a blood glucose meter is a medical diagnostic instrument used to measure glucose levels in a patient's blood and may employ a disposable sampling test strip having a well or reaction zone for receiving a blood sample. Some blood glucose meters include sensor assemblies that determine glucose levels by measuring the amount of electricity that can pass through a blood sample, while others include sensor assemblies that measure the amount of light refl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K15/00
CPCG01K13/00G01N27/3274G01K7/42A61B5/14532G01K7/427
Inventor T·耶特K·诺伊伯特T·M·韦伯M·Z·克尔曼尼
Owner LIFESCAN INC