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Reagent experiment device of hollow truncated cone

A technology of reagents and cones, applied in the field of instruments and disposable devices, can solve problems such as pollution, and achieve the effect of reducing danger and reducing the possibility of instrument pollution

Inactive Publication Date: 2003-07-23
LIFESCAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] What the above patents have in common is that each disclosed device presents a risk of contamination by biological fluids and other potentially harmful fluids

Method used

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  • Reagent experiment device of hollow truncated cone
  • Reagent experiment device of hollow truncated cone
  • Reagent experiment device of hollow truncated cone

Examples

Experimental program
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Embodiment Construction

[0051]The device of the present invention is generally suitable for use in instruments for measuring the concentration of analytes such as alcohol, cholesterol, proteins, ketones, enzymes, phenylalanine and glucose in biological fluids such as blood, urine and saliva. For brevity, the use of the device is described in detail in connection with a blood glucose self-monitor; however, one of ordinary skill in the medical diagnostic arts can readily adapt the technique to measure analytes in other biological fluids.

[0052] Self-monitoring of blood glucose is usually carried out by means of an instrument using one of two principles. The first is the type of photometer based on a reagent strip containing a composition that changes color when added to blood. The color change is a measure of the glucose concentration.

[0053] The second type of blood glucose monitor is the electrochemical type, which works by adding blood to an electrochemical cell that, depending on the type of d...

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PUM

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Abstract

A hollow, frustum-shaped disposable device is used in an apparatus for measuring the concentration of an analyte in a sample of a biological fluid. The smaller end of the frustum has a porous membrane, to which a sample of the fluid may be applied. Preferably, a reagent in the membrane reacts with the analyte to cause a color change. The device is mounted on a meter, which measures the color change and computes from the change the analyte concentration in the sample. The apparatus permits remote dosing of the device, which minimizes the likelihood of cross-contamination between the user and the meter. Devices can be mounted on the meter and released from the meter without touching them, to further protect against contamination.

Description

technical field [0001] The present invention relates to an instrument and a disposable device for measuring the concentration of an analyte in a biological fluid; more particularly, to a device whose disposable device is in the shape of a hollow frustum. Background technique [0002] Medical diagnosis often requires the measurement of biological fluids, such as blood, urine, or saliva, taken from a patient. In general, it is very important to avoid contamination of instruments and persons with these fluids and to prevent contamination of patients with other people's bodily fluids. Therefore, there is a need for diagnostic equipment which minimizes this risk of contamination. [0003] The most widely used medical diagnostic device today is the blood glucose monitor. In the United States alone, an estimated 14 million people have diabetes. To avoid serious health problems such as blindness, circulatory problems, kidney failure, etc., many people regularly monitor their bloo...

Claims

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Application Information

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IPC IPC(8): G01N33/49A61B5/145A61B5/1455A61B5/15A61B5/157B01L3/00B01L3/02G01N21/78G01N31/22G01N33/487G01N33/52G01N35/10G01N37/00
CPCG01N21/78G01N33/528G01N2035/1055B01L3/508B01L3/0275G01N33/53
Inventor J·T·皮尤
Owner LIFESCAN INC