WO2010032911A1 - Detachable blood glucose meter - Google Patents

Detachable blood glucose meter Download PDF

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Publication number
WO2010032911A1
WO2010032911A1 PCT/KR2009/002218 KR2009002218W WO2010032911A1 WO 2010032911 A1 WO2010032911 A1 WO 2010032911A1 KR 2009002218 W KR2009002218 W KR 2009002218W WO 2010032911 A1 WO2010032911 A1 WO 2010032911A1
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WO
WIPO (PCT)
Prior art keywords
measurement unit
blood glucose
main body
glucose meter
strip
Prior art date
Application number
PCT/KR2009/002218
Other languages
French (fr)
Inventor
Mi Suk Park
Min Seok Cha
Yon Chan Ahn
Yong Bok Choi
Original Assignee
All Medicus Co.,Ltd.
Ryu, Jun Oh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by All Medicus Co.,Ltd., Ryu, Jun Oh filed Critical All Medicus Co.,Ltd.
Publication of WO2010032911A1 publication Critical patent/WO2010032911A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/14—Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/157—Devices characterised by integrated means for measuring characteristics of blood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
    • G01N27/3271—Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood
    • G01N27/3274—Corrective measures, e.g. error detection, compensation for temperature or hematocrit, calibration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/48785—Electrical and electronic details of measuring devices for physical analysis of liquid biological material not specific to a particular test method, e.g. user interface or power supply
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0242—Operational features adapted to measure environmental factors, e.g. temperature, pollution
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means

Definitions

  • the present invention relates to a detachable blood glucose meter and, more particularly, to a detachable blood glucose meter, in which a measurement unit having a strip insertion slot and a temperature sensor is detachably connected to a main body such that heat generated in the main body has little effect on the temperature sensor.
  • One of such medical devices is a blood glucose meter.
  • the blood glucose meters are used by diabetics who require artificial regulation of blood glucose to easily measure the concentration of glucose in their blood.
  • blood glucose is measured using an early blood glucose meter installed at a hospital after blood cells and plasma are separated from blood. Thereafter, with the development of techniques, blood glucose meters that do not need to wipe off blood or remove blood cells and allow easier measurements have attracted much attention as a next generation technology.
  • Such blood glucose meters use either light intensity measurement or electrochemical measurement to measure blood glucose levels, in which a measurement unit, generally called a strip, is used.
  • a measurement unit generally called a strip
  • the strip corresponds to only a measurement unit used in the light intensity measurement
  • the strip used in the electrochemical measurement is referred to as a biosensor.
  • the light intensity measurement uses the oxidation reaction of glucose by a glucose oxidase and a peroxidase as a basic principle and measures the concentration of glucose by analyzing the change in color of an indicator.
  • a drop of blood is placed on the surface of reaction paper and, after a predetermined time has elapsed, a certain amount of light is irradiated from a light emitting means installed under the reaction paper to the surface of the reaction paper to utilize the amount of light reflected by an opaque reflection plate located under the reaction paper, thus measuring blood glucose level.
  • the electrochemical measurement is used to measure electrons generated by a reaction between the glucose oxidase and electrodes using an electron transfer medium instead of a chromogen.
  • a blood sample is coated on a reaction layer of a measurement strip used as a measurement sensor, glucose in blood is oxidized by the glucose oxidase, and the glucose oxidase is reduced.
  • an electron acceptor oxidizes the glucose oxidase and is reduced. Accordingly, the reduced electron acceptor loses electrons on the electron surface to which a certain voltage is applied and is electrochemically oxidized again. Since the amount of current generated at that time is proportional to the concentration of glucose in blood, the concentration of glucose in blood can be measured by measuring the amount of current.
  • the blood glucose meter electrochemically measures the concentration of glucose by measuring the amount of current, it is possible to accurately measure the concentration of glucose, reduce the measurement time, and improve the convenience of use.
  • the electrochemical blood glucose meter comprises a main meter 103 and a measurement strip to be inserted into an upper surface of the main body 103.
  • a strip insertion slot into which the measurement strip is inserted is formed on an upper end of the main body 103.
  • a liquid crystal display (LCD) panel 107 is installed on a front surface of the main body 103 to display a measured value or various picture information in the form of numbers, icons, graphs, etc.
  • a power switch 109 and a control switch 111 are placed adjacent to the LCD panel 107.
  • the user When a user intends to measure blood glucose using the above-described blood glucose meter 101, the user cleans his or her finger using sterile gauze, removes moisture, and then pricks the finger with a lancet to obtain a drop of blood.
  • the measurement strip is brought into contact with the drop of blood on the finger such that the measured value of blood glucose is displayed on the display panel 107.
  • a temperature sensor which detects the above-described various errors, particularly the error due to a change in ambient temperature, and correct the temperature, are mounted in the upper end of the main body.
  • an object of the present invention is to provide a detachable blood glucose meter, in which a measurement unit equipped with a temperature sensor is detachably connected to a main body such that the measurement unit is connected to the main body in a normal state and, if a strip insertion slot is changed according to the shape of a strip, the measurement unit is replaced while using the main body as it is.
  • a measurement sensor mounted in the measurement unit is not affected by the internal heat, thus measuring a more accurate blood glucose level.
  • a detachable blood glucose meter including: a main body including a liquid crystal display panel installed on a front surface and displaying a measured value or various picture information; a measurement unit detachably connected to an upper end of the main body and including a strip insertion slot formed on an upper end of the measurement unit; and a temperature sensor provided in the inside of the measurement unit and detecting an ambient temperature, wherein a temperature correction is made using information detected by the temperature sensor.
  • the detachable blood glucose meter may further include: a mounting portion formed on an upper end of the main body; locking grooves formed on both sides of the inside of the mounting portion; and locking projections formed on a lower end of the measurement unit to be detachably connected to the locking grooves.
  • the detachable blood glucose meter may further include: stopper grooves formed on an upper surface of the mounting portion; and stopper projections formed on a lower surface of the measurement unit to be inserted and connected to the stopper grooves.
  • the main body may be used as it is and only the measurement unit may be replaced.
  • the measurement unit may include correction information for converting a signal measured according to the kind of the strip into a blood glucose level.
  • the measurement unit since the measurement unit is detachably connected to the main body, it is possible to block heat generated from the main body such that the temperature sensor mounted in the measurement unit is not affected by the temperature, thus measuring a more accurate blood glucose level. Moreover, it is possible to replace the measurement unit according to the shape of the strip, not changing the blood glucose meter, thus improving the compatibility.
  • FIG. 1 is a front view showing a conventional blood glucose meter
  • FIG. 2 is a perspective view showing a detachable blood glucose meter in accordance with a preferred embodiment of the present invention
  • FIG. 3 is an exploded perspective view showing a state in which a main body and a measurement unit of FIG. 2 are separated;
  • FIG. 4 is a bottom view showing the measurement unit of FIG. 2;
  • FIG. 5 is a graph showing changes in temperature in a conventional blood glucose meter integrated with a temperature sensor and a detachable blood glucose meter of the present invention.
  • FIG. 2 is a perspective view showing a detachable blood glucose meter in accordance with a preferred embodiment of the present invention
  • FIG. 3 is an exploded perspective view showing a state in which a main body and a measurement unit of FIG. 2 are separated
  • FIG. 4 is a bottom view showing the measurement unit of FIG. 2.
  • the present invention aims at providing a detachable blood glucose meter, in which a measurement unit 11 equipped with a temperature sensor is detachable connected to a main body 10 such that the measurement unit 11 is not affected by internal heat due to the additional functions of the main body 10.
  • a strip is inserted into an upper or lower end of the main body 10.
  • a strip insertion slot 13 into which the strip is inserted is formed on the main body 10, and a temperature sensor is installed in the vicinity of the strip insertion slot 13 to detect a change in ambient temperature.
  • a liquid crystal display (LCD) panel 15 is installed on a front surface of the main body 10 to display a measured value, various picture information according to the measured value, a graph showing a change in the measured value, etc., and provide information for guiding the sequence of measurement.
  • a power button 12 for turning on and off the blood glucose meter is installed adjacent to the bottom of the LCD panel 15.
  • the blood glucose meter according to the present invention has a structure in which a portion in which the temperature sensor is installed is detached from the main body 10.
  • the blood glucose meter comprises the main body 10 including the LCD panel 15 formed on the front surface and the measurement unit 11 detachably connected to the main body 10.
  • the LCD panel 15 and the power button 12 are installed on the front surface of the main body 10, like the conventional one, and the measurement unit 11 is detachably connected to the upper or lower end of the main body 10 in a direction that the strip is inserted.
  • a mounting portion 16 is formed on an upper or lower end of the main body 10 such that the measurement unit 11 is detachably connected to the main body 10.
  • a male connector 17 for transmitting data measured by the measurement unit 11 to the main body 10 is installed on the mounting portion 16.
  • Locking grooves 19 for the connection with the measurement unit 11 are formed on both sides of the inside of the mounting portion 16. Stopper grooves 21 are formed on an upper surface of the mounting portion 16 such that the measurement unit 11 is not taken out of the mounting portion 16.
  • the strip insertion slot 13 through which the strip is inserted is formed inwardly on the rear end of the measurement unit 11, and the temperature sensor for detecting the ambient temperature during glucose measurement is installed in the inside of the measurement unit 11.
  • a female connector 18 is installed on a lower surface of the measurement unit 11 to correspond to the male connector 17 of the mounting portion 16.
  • Locking projections 20 for the connection with the mounting portion 16 are formed on both sides of the front end of the measurement unit 11 to correspond to the locking grooves 19.
  • Stopper projections 22 are formed on the rear end of the lower surface of the measurement unit 11 to correspond to the stopper grooves 21 such that the measurement unit 11 is not taken out of the mounting portion 16.
  • the method of replacing the measurement unit 11 in the main body 10 will be described below.
  • the measurement unit 11 is inserted on the mounting portion 16 such that the locking projections 20 are directed to the locking grooves 19, the locking projections 20 are inserted into the locking grooves 19, and the stopper projections 22 are inserted into the stopper grooves 21, thus fixing the measurement unit 11 onto the main body 10.
  • the upper surface of the measurement unit 11 is pushed upward while applying a constant force, the locking projections 20 are taken out of the locking grooves 19 and, when the measurement unit 11 is lifted up, the measurement unit 11 is detached from the main body 10.
  • the measurement unit 11 is used while it is connected to main body 10, and the measurement unit 11 can be simply detached from the main body 10, if necessary, such that another measurement unit 11 in which the strip insertion slot 13 has different size and shape is replaced and used.
  • the main body 10 and the measurement unit 11 are detachably connected to each other, it is possible to block heat generated from the main body 10 such that the temperature sensor mounted in the measurement unit 11 is not affected by the temperature, thus measuring a more accurate blood glucose level. Moreover, it is possible to replace the measurement unit 11 according to the shape of the strip, not changing the blood glucose meter, thus improving the compatibility.
  • FIG. 5 is a graph showing changes in temperature in a conventional blood glucose meter integrated with a temperature sensor and the detachable blood glucose meter of the present invention.
  • the test was performed to simultaneously measure temperature using temperature sensors in the conventional integrated blood glucose meter and the detachable blood glucose meter of the present invention for one hour while the power of the blood glucose meters are turned on.
  • the temperature was increased from 26.35°C to 41.2°C; however, in the case of the detachable blood glucose meter of the present invention, the temperature was maintained in the range from 24.1°C to 27.3°C, from which it can be seen that the increase in temperature was very small. As a result, it was proved that the temperature has little effect on the temperature sensor since the detachable blood glucose meter of the present invention has a structure in which the main body 10 and the measurement unit 11 are detachably connected to each other.

Abstract

Disclosed herein is a detachable blood glucose meter, in which a measurement unit (11) having a strip insertion slot (13) and a temperature sensor is detachably connected to a main body (10) such that heat generated in the main body has little effect on the temperature sensor. For this purpose, the present invention provides a detachable blood glucose meter including: a main body (10) including a liquid crystal display panel (15) installed on a front surface and displaying a measured value or various picture information; a measurement unit (11) detachably connected to an upper end of the main body (10) and including a strip insertion slot (13) formed on an upper end of the measurement unit (11); and a temperature sensor provided in the inside of the measurement unit (11) and detecting an ambient temperature, wherein a temperature correction is made using information detected by the temperature sensor.

Description

DETACHABLE BLOOD GLUCOSE METER
The present invention relates to a detachable blood glucose meter and, more particularly, to a detachable blood glucose meter, in which a measurement unit having a strip insertion slot and a temperature sensor is detachably connected to a main body such that heat generated in the main body has little effect on the temperature sensor.
With the development of modern society, the function and performance of household appliances such as communication devices having a storage medium and an operating system have been rapidly developed and, in the case of consumer electronic products, great efforts are made to improve users convenience.
Especially, such a tendency is observed in the field of medical devices and, like the household appliances, in the case of the medical devices that users directly manipulate, the convenience of the devices is no less important than the performance.
One of such medical devices is a blood glucose meter. As well known in the art, the blood glucose meters are used by diabetics who require artificial regulation of blood glucose to easily measure the concentration of glucose in their blood.
In an early stage, blood glucose is measured using an early blood glucose meter installed at a hospital after blood cells and plasma are separated from blood. Thereafter, with the development of techniques, blood glucose meters that do not need to wipe off blood or remove blood cells and allow easier measurements have attracted much attention as a next generation technology.
Such blood glucose meters use either light intensity measurement or electrochemical measurement to measure blood glucose levels, in which a measurement unit, generally called a strip, is used. Here, the strip corresponds to only a measurement unit used in the light intensity measurement, and the strip used in the electrochemical measurement is referred to as a biosensor.
The light intensity measurement uses the oxidation reaction of glucose by a glucose oxidase and a peroxidase as a basic principle and measures the concentration of glucose by analyzing the change in color of an indicator.
For this purpose, a drop of blood is placed on the surface of reaction paper and, after a predetermined time has elapsed, a certain amount of light is irradiated from a light emitting means installed under the reaction paper to the surface of the reaction paper to utilize the amount of light reflected by an opaque reflection plate located under the reaction paper, thus measuring blood glucose level.
The electrochemical measurement is used to measure electrons generated by a reaction between the glucose oxidase and electrodes using an electron transfer medium instead of a chromogen. When a blood sample is coated on a reaction layer of a measurement strip used as a measurement sensor, glucose in blood is oxidized by the glucose oxidase, and the glucose oxidase is reduced.
At this time, an electron acceptor oxidizes the glucose oxidase and is reduced. Accordingly, the reduced electron acceptor loses electrons on the electron surface to which a certain voltage is applied and is electrochemically oxidized again. Since the amount of current generated at that time is proportional to the concentration of glucose in blood, the concentration of glucose in blood can be measured by measuring the amount of current.
As such, since the blood glucose meter electrochemically measures the concentration of glucose by measuring the amount of current, it is possible to accurately measure the concentration of glucose, reduce the measurement time, and improve the convenience of use.
As shown in FIG. 1, the electrochemical blood glucose meter comprises a main meter 103 and a measurement strip to be inserted into an upper surface of the main body 103.
Moreover, a strip insertion slot into which the measurement strip is inserted is formed on an upper end of the main body 103. A liquid crystal display (LCD) panel 107 is installed on a front surface of the main body 103 to display a measured value or various picture information in the form of numbers, icons, graphs, etc. A power switch 109 and a control switch 111 are placed adjacent to the LCD panel 107.
When a user intends to measure blood glucose using the above-described blood glucose meter 101, the user cleans his or her finger using sterile gauze, removes moisture, and then pricks the finger with a lancet to obtain a drop of blood.
Subsequently, the measurement strip is brought into contact with the drop of blood on the finger such that the measured value of blood glucose is displayed on the display panel 107.
Meanwhile, in the process of measuring blood glucose, some errors are caused by a change in environment such as ambient temperature and humidity in addition to an error caused by the strip itself.
Accordingly, a temperature sensor, which detects the above-described various errors, particularly the error due to a change in ambient temperature, and correct the temperature, are mounted in the upper end of the main body.
However, as the LCD panel is changed from black-and-white to color and various functions such as a touch screen are added to the LCD panel, heat is generated in the main body and has an effect on the temperature sensor, and thus the internal heat as well as the ambient environment causes an error.
Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a detachable blood glucose meter, in which a measurement unit equipped with a temperature sensor is detachably connected to a main body such that the measurement unit is connected to the main body in a normal state and, if a strip insertion slot is changed according to the shape of a strip, the measurement unit is replaced while using the main body as it is. As a result, a measurement sensor mounted in the measurement unit is not affected by the internal heat, thus measuring a more accurate blood glucose level. Moreover, it is possible to replace the measurement unit according to the shape of the strip, not changing the blood glucose meter, thus improving the compatibility.
To accomplish the above objects of the present invention, there is provided a detachable blood glucose meter including: a main body including a liquid crystal display panel installed on a front surface and displaying a measured value or various picture information; a measurement unit detachably connected to an upper end of the main body and including a strip insertion slot formed on an upper end of the measurement unit; and a temperature sensor provided in the inside of the measurement unit and detecting an ambient temperature, wherein a temperature correction is made using information detected by the temperature sensor.
The detachable blood glucose meter may further include: a mounting portion formed on an upper end of the main body; locking grooves formed on both sides of the inside of the mounting portion; and locking projections formed on a lower end of the measurement unit to be detachably connected to the locking grooves.
The detachable blood glucose meter may further include: stopper grooves formed on an upper surface of the mounting portion; and stopper projections formed on a lower surface of the measurement unit to be inserted and connected to the stopper grooves.
If the strip insertion slot of the measurement unit is changed according to the shape of a strip, the main body may be used as it is and only the measurement unit may be replaced.
The measurement unit may include correction information for converting a signal measured according to the kind of the strip into a blood glucose level.
According to the detachable blood glucose meter of the present invention, since the measurement unit is detachably connected to the main body, it is possible to block heat generated from the main body such that the temperature sensor mounted in the measurement unit is not affected by the temperature, thus measuring a more accurate blood glucose level. Moreover, it is possible to replace the measurement unit according to the shape of the strip, not changing the blood glucose meter, thus improving the compatibility.
FIG. 1 is a front view showing a conventional blood glucose meter;
FIG. 2 is a perspective view showing a detachable blood glucose meter in accordance with a preferred embodiment of the present invention;
FIG. 3 is an exploded perspective view showing a state in which a main body and a measurement unit of FIG. 2 are separated;
FIG. 4 is a bottom view showing the measurement unit of FIG. 2; and
FIG. 5 is a graph showing changes in temperature in a conventional blood glucose meter integrated with a temperature sensor and a detachable blood glucose meter of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 is a perspective view showing a detachable blood glucose meter in accordance with a preferred embodiment of the present invention, FIG. 3 is an exploded perspective view showing a state in which a main body and a measurement unit of FIG. 2 are separated, FIG. 4 is a bottom view showing the measurement unit of FIG. 2.
The present invention aims at providing a detachable blood glucose meter, in which a measurement unit 11 equipped with a temperature sensor is detachable connected to a main body 10 such that the measurement unit 11 is not affected by internal heat due to the additional functions of the main body 10.
In general, since blood is taken from a finger to measure blood glucose, a strip is inserted into an upper or lower end of the main body 10.
A strip insertion slot 13 into which the strip is inserted is formed on the main body 10, and a temperature sensor is installed in the vicinity of the strip insertion slot 13 to detect a change in ambient temperature.
A liquid crystal display (LCD) panel 15 is installed on a front surface of the main body 10 to display a measured value, various picture information according to the measured value, a graph showing a change in the measured value, etc., and provide information for guiding the sequence of measurement. A power button 12 for turning on and off the blood glucose meter is installed adjacent to the bottom of the LCD panel 15.
Here, the blood glucose meter according to the present invention has a structure in which a portion in which the temperature sensor is installed is detached from the main body 10.
The blood glucose meter comprises the main body 10 including the LCD panel 15 formed on the front surface and the measurement unit 11 detachably connected to the main body 10.
The LCD panel 15 and the power button 12 are installed on the front surface of the main body 10, like the conventional one, and the measurement unit 11 is detachably connected to the upper or lower end of the main body 10 in a direction that the strip is inserted.
A mounting portion 16 is formed on an upper or lower end of the main body 10 such that the measurement unit 11 is detachably connected to the main body 10. A male connector 17 for transmitting data measured by the measurement unit 11 to the main body 10 is installed on the mounting portion 16. Locking grooves 19 for the connection with the measurement unit 11 are formed on both sides of the inside of the mounting portion 16. Stopper grooves 21 are formed on an upper surface of the mounting portion 16 such that the measurement unit 11 is not taken out of the mounting portion 16.
Meanwhile, the strip insertion slot 13 through which the strip is inserted is formed inwardly on the rear end of the measurement unit 11, and the temperature sensor for detecting the ambient temperature during glucose measurement is installed in the inside of the measurement unit 11.
Moreover, a female connector 18 is installed on a lower surface of the measurement unit 11 to correspond to the male connector 17 of the mounting portion 16. Locking projections 20 for the connection with the mounting portion 16 are formed on both sides of the front end of the measurement unit 11 to correspond to the locking grooves 19. Stopper projections 22 are formed on the rear end of the lower surface of the measurement unit 11 to correspond to the stopper grooves 21 such that the measurement unit 11 is not taken out of the mounting portion 16.
The method of replacing the measurement unit 11 in the main body 10 will be described below. When the measurement unit 11 is inserted on the mounting portion 16 such that the locking projections 20 are directed to the locking grooves 19, the locking projections 20 are inserted into the locking grooves 19, and the stopper projections 22 are inserted into the stopper grooves 21, thus fixing the measurement unit 11 onto the main body 10. On the contrary, when the upper surface of the measurement unit 11 is pushed upward while applying a constant force, the locking projections 20 are taken out of the locking grooves 19 and, when the measurement unit 11 is lifted up, the measurement unit 11 is detached from the main body 10.
According to the detachable blood glucose meter having the above-described structure, the measurement unit 11 is used while it is connected to main body 10, and the measurement unit 11 can be simply detached from the main body 10, if necessary, such that another measurement unit 11 in which the strip insertion slot 13 has different size and shape is replaced and used.
Accordingly, since the main body 10 and the measurement unit 11 are detachably connected to each other, it is possible to block heat generated from the main body 10 such that the temperature sensor mounted in the measurement unit 11 is not affected by the temperature, thus measuring a more accurate blood glucose level. Moreover, it is possible to replace the measurement unit 11 according to the shape of the strip, not changing the blood glucose meter, thus improving the compatibility.
Test results measured at a hospital using the above-described detachable blood glucose meter are shown in the following Table 1 and FIG. 5. FIG. 5 is a graph showing changes in temperature in a conventional blood glucose meter integrated with a temperature sensor and the detachable blood glucose meter of the present invention.
Table 1
Figure PCTKR2009002218-appb-I000001
The test was performed to simultaneously measure temperature using temperature sensors in the conventional integrated blood glucose meter and the detachable blood glucose meter of the present invention for one hour while the power of the blood glucose meters are turned on.
As shown in FIG. 5 and Table 1, in the case of the conventional integrated blood glucose meter, the temperature was increased from 26.35℃ to 41.2℃; however, in the case of the detachable blood glucose meter of the present invention, the temperature was maintained in the range from 24.1℃ to 27.3℃, from which it can be seen that the increase in temperature was very small. As a result, it was proved that the temperature has little effect on the temperature sensor since the detachable blood glucose meter of the present invention has a structure in which the main body 10 and the measurement unit 11 are detachably connected to each other.
The invention has been described in detail with reference to preferred embodiments thereof. However, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

  1. A detachable blood glucose meter comprising:
    a main body including a liquid crystal display panel installed on a front surface and displaying a measured value or various picture information;
    a measurement unit detachably connected to an upper end of the main body and including a strip insertion slot formed on an upper end of the measurement unit; and
    a temperature sensor provided in the inside of the measurement unit and detecting an ambient temperature,
    wherein a temperature correction is made using information detected by the temperature sensor.
  2. The detachable blood glucose meter of claim 1, further comprising:
    a mounting portion formed on an upper end of the main body;
    locking grooves formed on both sides of the inside of the mounting portion; and
    locking projections formed on a lower end of the measurement unit to be detachably connected to the locking grooves.
  3. The detachable blood glucose meter of claim 1 or 2, further comprising:
    stopper grooves formed on an upper surface of the mounting portion; and
    stopper projections formed on a lower surface of the measurement unit to be inserted and connected to the stopper grooves.
  4. The detachable blood glucose meter of claim 1, wherein, if the strip insertion slot of the measurement unit is changed according to the shape of a strip, the main body is used as it is and only the measurement unit is replaced.
  5. The detachable blood glucose meter of claim 4, wherein the measurement unit includes correction information for converting a signal measured according to the kind of the strip into a blood glucose level.
PCT/KR2009/002218 2008-09-17 2009-04-28 Detachable blood glucose meter WO2010032911A1 (en)

Applications Claiming Priority (2)

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KR1020080091121A KR20100032130A (en) 2008-09-17 2008-09-17 Dividable blood glucose test meter
KR10-2008-0091121 2008-09-17

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011119269A1 (en) * 2010-03-26 2011-09-29 Medtronic Minimed, Inc. Ambient temperature sensor systems and methods
US20120055274A1 (en) * 2010-09-07 2012-03-08 Honeywell International Inc. Quick disconnect field instrument display meter assembly
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WO2011119269A1 (en) * 2010-03-26 2011-09-29 Medtronic Minimed, Inc. Ambient temperature sensor systems and methods
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US11015984B2 (en) * 2010-09-23 2021-05-25 Ascensia Diabetes Care Holdings Ag System and apparatus for determining ambient temperatures for a fluid analyte system
US20200329965A1 (en) * 2011-03-23 2020-10-22 Phc Holdings Corporation Biological information measuring apparatus
CN103196960A (en) * 2013-03-13 2013-07-10 北京怡成生物电子技术有限公司 Blood glucose testing device and system
WO2016038047A1 (en) * 2014-09-09 2016-03-17 Lifescan Scotland Limited Hand-held test meter with integrated thermal channel

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