KR101596901B1

KR101596901B1 - Portable Blood Glucose Tester

Info

Publication number: KR101596901B1
Application number: KR1020140086090A
Authority: KR
Inventors: 도재필; 진영준; 유정민; 차근식; 남학현
Original assignee: 주식회사 아이센스
Priority date: 2014-07-09
Filing date: 2014-07-09
Publication date: 2016-02-24
Also published as: KR20160015410A; WO2016006931A1

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable blood glucose meter, and more particularly, to a portable blood glucose meter that measures the temperature of an external object on which a case is placed based on a general use mode of performing a blood glucose measurement operation with a case placed on a specific external object, And the blood glucose level is corrected and calculated in accordance with the measured temperature, it is possible to accurately reflect the actual temperature in the current blood glucose measurement environment, thereby improving the accuracy of the blood glucose level result, It can be used more conveniently because it can measure the temperature of the external object naturally in the blood glucose measurement process without additional work and is configured to verify that the temperature measured by the non-contact type temperature sensor is the temperature in the actual measurement environment, , Which can occur during the temperature measurement process. Provides a portable blood glucose meter that can prevent errors and further improve the accuracy of the blood glucose results.

Description

[0001] Portable Blood Glucose Tester [0002]

The present invention relates to a portable blood glucose meter. More particularly, the present invention relates to a method and apparatus for measuring the temperature of an external object on which a case is placed, using a separate non-contact type temperature sensor, based on a general use of performing a blood glucose measurement operation while placing the case on a specific external object, So that it is possible to accurately reflect the actual temperature in the current blood glucose measurement environment, thereby improving the accuracy of the blood glucose level result and allowing the user to perform the blood glucose measurement process without any additional work for temperature measurement The temperature measured by the noncontact type temperature sensor is verified as the temperature in the actual measurement environment and is reflected in the calculation of the blood glucose value by constructing the sensor so as to be able to measure the temperature of the external object naturally, To prevent the occurrence of errors that may occur, It relates to a portable blood glucose meter that can further improve the accuracy of the numerical results.

Diabetes mellitus is a chronic disease that is common in modern people, and it accounts for more than 2 million people, or 5% of the total population in Korea.

Diabetes is absolutely lacking or relatively insufficient in the insulin produced by the pancreas due to various causes such as obesity, stress, bad eating habits, inherited hereditary factors, so that the sugar in the blood can not correct the balance in the blood, And it develops.

Blood usually contains a certain concentration of glucose and tissue cells are getting energy here.

However, when the glucose is increased excessively, it is not properly stored in the liver, muscle or fat cells, and accumulates in the blood. As a result, the blood glucose of the diabetic patient is maintained to be much higher than that of the normal person. As it is released, the amount of sugar that is absolutely necessary for each tissue of the body becomes insufficient, causing an abnormality in each tissue of the body.

Diabetes mellitus is characterized by almost no subjective symptoms at the beginning. When the disease progresses, specific symptoms such as diabetes specific next, diabetes, diarrhea, weight loss, general boredom, skin itching, And further progression of the disease may lead to complications such as visual disturbance, hypertension, kidney disease, paralysis, periodontal disease, muscle spasms and neuralgia, and gangrene.

In order to diagnose these diabetes mellitus and prevent it from progressing to complications, systematic blood glucose measurement and treatment should be performed in parallel.

For people with diabetes and those who have not progressed to diabetes but have more sugar than normal in their blood, many medical device manufacturers offer a variety of portable blood glucose meters to measure blood glucose at home.

Such a portable blood glucose meter measures a blood glucose level by inserting a test strip into a case, adsorbing a blood sample on a test strip inserted into the case, inspecting an absorbed blood sample through a blood glucose measurement module in the case, And outputs the blood glucose measurement result to a separate display unit.

In this case, since the blood glucose level for the blood sample changes according to the temperature of the environment to be measured, the portable blood glucose meter is provided with a temperature sensor for measuring the temperature. In the process of calculating the blood glucose level through the operation unit, In consideration of the temperature that has been generated.

However, in the conventional portable blood glucose meter according to the related art, the temperature sensor is mounted inside the case, and the temperature sensor measures the temperature of the space inside the case. In this case, since the inner space of the case is formed in an isolated form from the outer space, the temperature of the inner space of the case changes very slowly with time difference even if the outer temperature substantially changes. The temperature is not reflected normally, and the blood glucose values calculated by reflecting the measured temperature are different from the actual values.

For example, in a case where a portable blood glucose meter is carried out in winter, and the blood glucose is measured by operating a portable blood glucose meter immediately after entering the room after performing an outdoor activity, the temperature of the environment for measuring blood glucose, The temperature measured by the temperature sensor of the blood glucose meter may be as low as, for example, about 0 ° C, since the temperature inside the case of the portable blood glucose meter may still be kept at the outdoor temperature. In this case, when the blood glucose value is calculated by reflecting the temperature measured by the temperature sensor, a temperature (0 ° C) different from the actual temperature (25 ° C) in the measurement environment is reflected, so that accurate blood glucose values can not be obtained.

Therefore, in order to prevent such an inaccurate blood glucose level from being calculated, there has been a problem in that it is necessary to wait for a considerable time until the temperature inside the case equilibrates with the room temperature.

Korean Utility Model Publication No. 20-2013-0003830

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and it is an object of the present invention to provide a blood glucose measurement method and a blood glucose measurement method for an external object The temperature can be measured through a separate non-contact temperature sensor and the blood glucose level can be corrected to reflect the measured temperature, thereby accurately reflecting the actual temperature in the current blood glucose measurement environment and improving the accuracy of the blood glucose level result And a user can measure the temperature of an external object naturally in the blood glucose measurement process without any extra work for temperature measurement, thereby providing a portable blood glucose meter which can be more conveniently used.

Another object of the present invention is to provide a non-contact type temperature sensor capable of quickly measuring the temperature of an external object, thereby avoiding the need to wait until the internal temperature of the case and the surrounding environment become equilibrium, The present invention provides a portable blood glucose meter which can measure the temperature of a measurement environment and can use the blood glucose meter quickly and freely in response to a change in environmental conditions.

It is still another object of the present invention to provide a blood glucose level calculation method and a blood glucose level calculation method and a blood glucose level measurement method, Which is capable of further improving the accuracy of the blood glucose meter.

The present invention relates to a case in which a strip input port is formed on one side so that a test strip formed so that a blood sample can be adsorbed therein is formed, a display part is formed on the front surface, and a separate temperature measurement hole is formed on the rear surface. A PCB mounted on the inside of the case and mounted with a blood glucose measurement module for inspecting a blood sample adsorbed on the test strip and measuring blood glucose; A calculation unit for calculating and calculating a blood glucose level by receiving a measurement value measured by the blood glucose measurement module; And a non-contact type temperature sensor mounted on the PCB substrate and measuring the temperature of the external object in a non-contact manner by irradiating measurement light to the external object through the temperature measurement hole while the case is seated on a separate external object And the arithmetic unit corrects and calculates the blood glucose level by reflecting the temperature of the external object measured by the non-contact temperature sensor.

At this time, the non-contact type temperature sensor may be mounted on the PCB substrate so as to be positioned on the straight line with the center line of the temperature measurement hole and irradiate measurement light to the external space of the case through the temperature measurement hole.

In addition, a separate spacing protrusion may be formed on the rear surface of the case so that the rear surface of the case is spaced apart from the surface of the external object while the case is seated on the external object.

The operation unit may be configured to reflect the temperature of the external object only when the temperature of the external object measured by the non-contact temperature sensor is maintained within a predetermined range for a predetermined time.

The operation unit may be configured to output an acknowledgment message to the display unit when the temperature of the external object measured by the non-contact temperature sensor falls within a preset confirmation temperature range.

In addition, a separate confirmation operation button is provided on the front surface of the case, and when the operation unit outputs the confirmation message to the display unit, the operation unit reflects the temperature of the external object only when the operation signal to the confirmation operation button is generated .

Also, the above confirmation temperature range may be applied from 36 degrees to 38 degrees.

According to the present invention, the temperature of the external object on which the case is placed is measured through a separate non-contact type temperature sensor based on the general usage of performing the blood glucose measurement operation with the case placed on a specific external object, So that it is possible to accurately reflect the actual temperature in the current blood glucose measurement environment, thereby improving the accuracy of the blood glucose level measurement result, and it is possible to improve the accuracy of the blood glucose level measurement result by allowing the user to perform blood glucose measurement The temperature of the external object can be measured naturally in the process, so that it is possible to use it more conveniently.

In addition, by using the non-contact temperature sensor to quickly measure the temperature of an external object, it is possible to quickly measure the temperature of the external object without having to wait until the temperature inside the case and the surrounding environment equilibrium, The temperature can be measured, so that it can be used freely and quickly even when the environmental conditions change.

In addition, it is possible to verify that the temperature measured by the non-contact type temperature sensor is the temperature in the actual measurement environment and reflect the same in the blood glucose value calculation process, thereby preventing errors that may occur during the temperature measurement process, There is an effect that can be improved.

FIG. 1 is a perspective view schematically showing the outline of a portable blood glucose meter according to an embodiment of the present invention, FIG.
FIG. 2 is an exploded perspective view schematically illustrating an internal configuration of a portable blood glucose meter according to an embodiment of the present invention, FIG.
3 is a cross-sectional view schematically showing an internal structure of a portable blood glucose meter according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view schematically showing an outline of a portable blood glucose meter according to an embodiment of the present invention, FIG. 2 is an exploded perspective view schematically illustrating an internal configuration of a portable blood glucose meter according to an embodiment of the present invention, 3 is a cross-sectional view schematically showing an internal structure of a portable blood glucose meter according to an embodiment of the present invention.

The portable blood glucose meter according to an embodiment of the present invention is capable of measuring the temperature in an actual measurement environment to improve the accuracy of the blood glucose measurement result. The portable blood glucose meter includes a case 100, a PCB 300, An arithmetic unit 600, and a non-contact temperature sensor 500.

The case 100 may have a receiving space therein and may be detachably connected to the upper case 110 and the lower case 120 as shown in FIGS. A strip input port 150 is formed at one side of the side so that the test strip 200 can be inserted into the inner space and the test strip 200 is inserted into the strip input port 150 as described in the Background of the Invention, So that the sample T can be easily adsorbed.

The display unit 130 is provided on the front surface of the case 100 so that the blood glucose measurement result measured from the blood sample T can be numerically outputted and the operation button unit 140 for user's operation is mounted do. The operation button unit 140 may include buttons for various functions such as an on / off button. In particular, a separate confirmation operation button 141 may be provided, which will be described later. A separate temperature measurement hole 160 is formed through the rear surface of the case 100.

The PCB 300 is mounted inside the case 100 and the blood glucose measurement module 400 is mounted on the PCB 300. The blood glucose measurement module 400 is configured to measure blood glucose by inspecting a blood sample T of a test strip 200 inserted through a strip input port 150.

The calculating unit 600 is mounted on the PCB 300 and is configured to calculate and calculate blood glucose values by receiving measured values measured by the blood sugar measuring module 400. [ The blood glucose level calculated by the calculation unit 600 is output through the display unit 130 formed on the front surface of the case 100. The user can check the blood glucose level of the subject through the information output through the display unit 130 . The method of calculating the blood glucose level by inspecting the blood sample (T) is applied in the same manner as a general blood glucose meter, so a detailed description thereof will be omitted.

The noncontact type temperature sensor 500 is mounted on the PCB 300 and transmits measurement light to the external object P through the temperature measurement hole 160 in a state where the case 100 is seated on a separate external object P. So as to measure the temperature of the external object P in a non-contact manner. The noncontact temperature sensor 500 may be applied as an infrared temperature sensor using infrared rays as measurement light.

At this time, the temperature value of the external object P measured by the non-contact type temperature sensor 500 is applied to the operation unit 600, and the operation unit 600 reflects the temperature of the external object P thus applied, . That is, the calculation unit 600 calculates the final blood glucose level by reflecting the temperature of the external object P measured by the non-contact type temperature sensor 500 to the measurement value measured by the blood glucose measurement module 400 described above.

According to this structure, the portable blood glucose meter according to an embodiment of the present invention does not measure the temperature inside the case 100, but instead measures the temperature of a separate external object P located in the actual measurement environment, The actual temperature in the blood glucose measurement environment can be more accurately measured by calculating the blood glucose level by measuring the blood glucose level in accordance with the measured blood glucose level. Accordingly, it is possible to accurately reflect the temperature variable in the blood glucose level calculation process, have.

Particularly, in consideration of the fact that the user uses the case in a state in which the case is placed on an external object P such as a table in the blood glucose measurement process, the portable blood glucose meter according to an embodiment of the present invention allows a user to additionally add It is possible to accurately measure the temperature of the external object P through the non-contact type temperature sensor 500 naturally during the blood glucose measurement process without using the operation, so that it can be more conveniently used.

In addition, since the temperature of the external object P can be measured quickly by using the non-contact type temperature sensor 500, unlike the prior art, it is not necessary to wait until the internal temperature of the case and the surrounding environment become equilibrium, The temperature for the current measurement environment can be measured.

Hereinafter, the detailed configuration and functions of the present invention will be described in more detail.

First, the portable blood glucose meter is generally used. The user puts the test strip 200 into the strip inlet 150 of the case 100 to operate the blood glucose meter in the ON state, Is placed on a flat surface such as a table, and a blood sample of the examinee is taken in this state and adsorbed to the test strip 200. Thereafter, the blood glucose level is measured through the blood sample adsorbed on the test strip 200. In this process, the user can operate the on / off button of the operation button unit 140 and the blood glucose value calculated by the blood glucose measurement module 400 and the calculation unit 600 is outputted through the display unit 130 .

As described above, the portable blood glucose meter generally uses a case where the case 100 is placed on a separate external object P such as a table.

The portable blood glucose meter according to the present invention is configured to be able to conveniently use the blood glucose meter in consideration of such a usage method and calculate accurate blood glucose level information. That is, the temperature measurement hole 160 is formed on the rear surface of the case 100 opposite to the external object P in the process of the case 100 being seated on the external object P, Contact temperature sensor 500 capable of measuring the temperature by irradiating measurement light to the external object P through the temperature measurement hole 160 allows the user to set the case 100 to an external object P , It is possible to naturally measure the temperature of the external object P without additional work for the present temperature measurement. Therefore, the user can use it very conveniently. Further, by calculating the blood glucose level by reflecting the temperature in the current measurement environment thus measured, more accurate blood glucose level can be provided.

For example, if a user uses a blood glucose meter on the cold winter day and then uses the blood glucose meter as soon as he enters the room while holding a portable blood glucose meter, the temperature of the room is warmed to about 25 degrees Celsius as described in the background art, If the blood glucose meter is used in this state, the actual temperature of the measurement environment may not be normally reflected, and the wrong blood glucose level may be calculated. However, the portable blood glucose meter according to an embodiment of the present invention quickly measures and reflects the temperature of the external object P such as a table stably maintaining the temperature of the indoor environment at about 25 degrees, Not only can it be obtained, but it can be used conveniently.

As described above, the portable blood glucose meter according to the embodiment of the present invention measures the temperature of the external object P through the non-contact type temperature sensor 500 while the case 100 is placed on the external object P The noncontact temperature sensor 500 may be mounted on the PCB 300 so as to be positioned on a straight line with the center line of the temperature measurement hole 160. In order to facilitate the temperature measurement process, The measurement light of the non-contact type temperature sensor 500, for example, infrared rays, can be smoothly and stably irradiated to the external space through the temperature measurement hole 160. [

When the rear surface of the case 100 comes into contact with the surface of the external object P in a state where the case 100 is seated on the surface of the external object P, The irradiation distance of the measuring light is relatively shortened and at the same time the external object P region to which the measuring light is irradiated is closed by the inner space of the case 100 to instantaneously change the temperature. A separate spacing projection 170 is formed on the rear surface of the case 100 so that the rear surface of the case 100 can be seated with a spacing distance d from the surface of the external object P as shown in FIGS. .

In addition, as the case 100 is brought into contact with the surface of the external object P, thermal conduction occurs between the case 100 and the external object P to cause an instantaneous temperature change in the local region of the external object P A separate insulator (not shown) for preventing heat transfer may be mounted on the rear surface of the case 100 so as to prevent this.

Since external foreign substances can be introduced into the inner space of the case 100 through the temperature measurement holes 160 formed on the back surface of the case 100, A filter (not shown) may be mounted sealingly. The measurement light transmission filter is formed to have a characteristic capable of transmitting the measurement light irradiated by the non-contact type temperature sensor 500, and the temperature measurement hole 160 is sealed so as to prevent the inflow of foreign matter. . When the non-contact temperature sensor 500 is applied as an infrared temperature sensor, the measurement light transmission filter can be applied as an infrared transmission filter corresponding thereto.

On the other hand, when the user moves or carries the case 100 without placing the case 100 on a specific external object P such as a table in the course of using the blood glucose meter, the non-contact type temperature sensor 500 Since the type of the external object P to be measured can be continuously changed and the temperature of a specific object different from the indoor environment can be instantaneously measured, The operation unit 600 according to the embodiment is configured to reflect the temperature of the external object P only when the temperature of the external object P measured by the non-contact type temperature sensor 500 is maintained within a predetermined range for a predetermined time .

For example, when the temperature of the external object P measured by the non-contact type temperature sensor 500 is maintained at 25 degrees for 2 seconds, it is reflected to the temperature for the current measurement environment to calibrate and calculate the blood glucose value, If the temperature of the external object P continuously changes within 2 seconds, the change temperature of the external object P measured at this time is not reflected in the calculation of the blood sugar value but is reflected only when the temperature is maintained for 2 seconds or more . Of course, here, 2 seconds is an example, and such time may be variously set according to the needs of the user.

In the above description, the portable blood glucose meter is placed on a separate external object P such as a table. However, depending on the specific situation, the user may place the portable blood glucose meter on the palm of his or her hand May also occur. In this case, the temperature measured by the noncontact type temperature sensor 500 of the present invention can be measured from the human body temperature, about 36 degrees to 37 degrees, not the temperature of the actual measurement environment.

The operation unit 600 according to an embodiment of the present invention may further include a display unit 130 for displaying the temperature of the external object P measured by the non-contact temperature sensor 500, To output the confirmation message. At this time, the confirmation temperature range can be set as a human body temperature range, for example, about 36 to 38 degrees as described above, and in addition, considering the fact that the temperature of the indoor environment generally does not become higher than 40 degrees, The range may be set to a temperature of 40 degrees or more, and may be variously set according to the use conditions of the portable blood glucose meter.

For example, the confirmation temperature range can be set in three types. The first confirmation temperature range may be set to a human body temperature range of about 36 degrees to about 38 degrees, and the second confirmation temperature range may be set to about 50 degrees or more in consideration of the temperature of general indoor environment. 3 Confirmation temperature range can also be set below 5 degrees in consideration of the temperature of general indoor environment.

If the temperature measured by the non-contact temperature sensor 500 is more than 50 degrees or less than 5 degrees according to the three check temperature ranges, a confirmation message is output to the display unit 130, and in the interval between 5 degrees and 50 degrees Correct the blood glucose level by reflecting the measured temperature without outputting confirmation message. However, if the temperature measured in this temperature range is 36 degrees to 38 degrees, which is the human body temperature range, the confirmation message is output as described above.

The operation button unit 140 is provided on the front surface of the case 100 as described above. The operation button unit 140 may be provided with another confirmation operation button 141 as described above.

At this time, when the temperature of the external object P measured by the non-contact type temperature sensor 500 corresponds to the confirmed temperature range and the confirmation message is output to the display unit 130, the operation unit 600 displays the confirmation operation button 141, The blood glucose level may be corrected and calculated by reflecting the temperature of the external object P only when an operation signal for the external object P is generated.

For example, when the temperature of the external object P measured by the non-contact type temperature sensor 500 is 37 degrees in a state where the confirmation temperature range is set to 36 degrees to 38 degrees, the calculation unit 600 calculates the temperature of the external object P And outputs a confirmation message to the display unit 130 without directly reflecting the blood glucose level in the blood glucose level calculation process. For example, "Is the temperature of the measurement environment around 37 degrees?" Or "Is the instrument placed on the palm of your hand?" And the like can be output. At this time, if the user confirms the confirmation message and operates the confirmation operation button 141 to Yes / No, the temperature of the external object P is reflected in the blood glucose value calculation process according to the operation signal of the confirmation operation button 141 And can be configured to calibrate the blood glucose level.

Here, although the operation unit 600 has been described as merely outputting the confirmation message to the display unit 130, a configuration may be further added in which a separate alarm sound or an alarm or the like flashes, will be.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as falling within the scope of the present invention.

100: Case 130:
140: operation button section 141: confirmation operation button
150: Strip inlet 160: Temperature measurement hole
170:
200: test strip 300: PCB substrate
400: blood glucose measurement module 500: non-contact temperature sensor
600:

Claims

A case having a strip inlet formed at one side thereof, a display part formed at a front side thereof, and a separate temperature measurement hole formed at the rear side thereof so that a test strip formed so that a blood sample can be adsorbed therein is inserted into the case;
A PCB mounted on the inside of the case and having a blood glucose measurement module mounted thereon for inspecting a blood sample adsorbed on the test strip to measure blood glucose;
A calculation unit for calculating and calculating a blood glucose level by receiving a measurement value measured by the blood glucose measurement module; And
Contact type temperature sensor which is mounted on the PCB substrate and measures the temperature of the external object in a non-contact manner by irradiating measurement light to the external object through the temperature measurement hole while the case is seated on a separate external object,
Wherein the arithmetic unit corrects and calculates the blood glucose level by reflecting the temperature of the external object measured by the non-contact temperature sensor,
A separate spaced projection is formed on the rear surface of the case so that the rear surface of the case is spaced apart from the surface of the external object in a state in which the case is seated on the external object,
A separate insulator is coupled to a rear surface of the case so as to prevent heat conduction between the case and the external object,
The operation unit
Wherein the temperature of the external object is reflected only when the temperature of the external object measured by the non-contact temperature sensor is maintained within a predetermined range for a predetermined time,
And outputs a confirmation message to the display unit when the temperature of the external object measured by the non-contact temperature sensor falls within a preset confirmation temperature range.

The method according to claim 1,
Wherein the noncontact type temperature sensor is mounted on the PCB substrate so as to be positioned on a straight line with the center line of the temperature measurement hole and irradiates measurement light to the external space of the case through the temperature measurement hole.

delete

The method according to claim 1,
And a measurement light transmission filter capable of transmitting measurement light irradiated from the non-contact temperature sensor is hermetically sealed to the temperature measurement hole.

delete

The method according to claim 1,
A separate confirmation operation button is provided on the front surface of the case,
The operation unit
Wherein when the confirmation message is output to the display unit, the temperature of the external object is reflected only when an operation signal for the confirmation operation button is generated.

The method according to claim 1,
Wherein the confirmed temperature range is from 36 degrees to 38 degrees.