Noninvasive glucometer

Abstract

The utility model discloses a noninvasive glucometer, which is used for detecting chemical components of a blood glucose marker in a gas sample exhaled by a testee and comprises a shell, a blood glucose information display screen and an air vent are arranged on the front side of the shell, an air blowing component is arranged at the front end of the edge of the shell, and a power interface is arranged at the rear end of the shell. A battery assembly, a circuit board, a sensor and an air blower are installed in the shell. According to the non-invasive glucometer, the blowing nozzle and the shell are designed to be separable, the disposable and replaceable blowing nozzle is used, when the non-invasive glucometer is not used, air in the glucometer is kept airtight, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to a non-invasive blood glucose meter, belonging to the technical field of medical equipment, and in particular to a small non-invasive blood glucose meter or a blood glucose detector with a gas detection function. Background Art

[0002] Diabetes is a common chronic disease that requires regular monitoring of blood sugar levels. Traditional blood sugar monitoring methods require measuring blood sugar levels by puncturing the skin and drawing blood samples. However, this method can be painful and inconvenient for patients, and the need for frequent blood sugar monitoring may lead to the risk of skin irritation and infection. Therefore, researchers began to explore non-invasive blood sugar monitoring technologies, aiming to provide a more convenient and less painful way to monitor blood sugar levels. These technologies use different principles, such as optics, electrochemistry, and acoustics, to infer blood sugar levels by measuring physiological parameters in other parts of the human body such as the skin, eyes, or saliva. Some volatile organic compounds (VOCs) are produced in human exhaled gas, which can be expelled from the body through breathing. By analyzing the changes in the concentration of these VOCs in exhaled gas, researchers can establish a correlation with blood sugar levels.

[0003] The technology with publication number CN210427579U discloses a quantitative evaluation device for glucose tolerance based on breath detection, including a sampling pump, a sampling tube, a gas sensor unit, a monitoring unit, a display unit and a power supply unit; the sampling pump is connected to the sampling tube; the gas sensor unit is connected to the sampling tube, and can directly contact or non-contact measure the gas in the sampling tube; the monitoring unit is connected to the gas sensor unit, and is connected to the display unit and the sampling pump; the power supply unit is connected to the sampling pump, the monitoring unit, and the display unit. This technology can achieve non-invasive evaluation of glucose tolerance without blood drawing, but the form of the air outlet is not specifically disclosed, and it cannot solve the technical problems of hygiene, safety, convenience and practicality.

[0004] The technology with the publication number CN110412089A discloses a breath detection device, which adopts a gas sensor based on TiO2 nano-sensitive material, and includes an air intake unit, an air outlet unit, a gas sensor, a first gas filter unit, a second gas filter unit, a third gas filter unit and a gas detection chamber, wherein the air intake unit, the air outlet unit, the first gas filter unit, the second gas filter unit and the third gas filter unit are all connected to the gas detection chamber, and the gas sensor is installed inside the gas detection chamber. The air intake unit includes a gas nozzle, an air intake pipe, a solenoid valve a and a blow valve, one end of the air intake pipe is connected to the gas nozzle, and the other end is connected to the gas detection chamber, a solenoid valve a and a blow valve are installed on the air intake pipe, and the blow valve is located between the gas nozzle and the solenoid valve; the air intake airway is connected to the gas nozzle, and the air outlet airway is connected to the gas detection chamber.

[0005] The above-mentioned exhalation blood glucose detector generally requires an air outlet, which is troublesome to use, unhygienic, and may affect the life and accuracy of internal components due to gas circulation and insufficient sealing.

[0006] The technology with publication number CN113633273A discloses a breath detection filter device for preventing cross contamination, a mouthpiece matched therewith, and a breath detection method. The filter device includes a mouthpiece and a device body, and the mouthpiece is detachably connected to the device body. The mouthpiece includes an exhalation channel and an inhalation channel, a one-way valve is provided on the inhalation channel, and an opening and closing device is provided on the exhalation channel. The exhalation channel and the inhalation channel of the mouthpiece correspond to the exhalation channel and the inhalation channel of the device body respectively and are tightly connected without leakage. The mouthpiece in the filter device described in this technology is for single use, which can avoid the contamination of the inhalation channel of the device body used by multiple people, so as to achieve the purpose of preventing cross contamination during the exhalation detection process of exhaled nitric oxide, etc., but the device structure is complex and the manufacturing cost is high. The components of the existing breath detection device are complex, the manufacturing cost is high, the volume is large, and it is not conducive to maintenance and use. Utility Model Content

[0007] The purpose of the utility model is to provide a non-invasive blood glucose meter, which can provide a more convenient and hygienic use experience by changing the blowing port of the exhaled gas detection blood glucose meter to an external mouthpiece. By using the external mouthpiece, the mouthpiece can be easily connected to the blood glucose meter, and then the exhaled gas is sent to the instrument for analysis by blowing. This design can reduce the risk of contamination of the instrument, and the mouthpiece can be replaced after use to ensure hygiene and accuracy.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A non-invasive blood glucose meter is used to detect the chemical components of blood glucose markers in a gas sample exhaled by a tester. The non-invasive blood glucose meter comprises a housing, a blood glucose information display screen and a vent are arranged on the front of the housing, a blowing assembly is arranged at the front end of the housing edge, a power supply interface is arranged at the rear end of the housing, and a battery assembly, a circuit board, a sensor, and a blower are installed inside the housing;

[0010] The sensor is a gas sensor, which is installed on a circuit board and is connected to the circuit board signal; the front end of the blowing assembly includes a blowing port, on which a blowing nozzle and a blowing port sealing plug are replaceable and removable, and the blowing nozzle and the blowing port sealing plug can be assembled and sealed with the blowing port respectively, and when in use, the blowing port sealing plug plugged on the blowing port is opened, the blowing nozzle is plugged into the blowing port, and the subject blows air through the blowing port through the blowing nozzle; the blower is connected to the blowing port through an air supply pipeline, a gas filtering device is provided on the air supply pipeline, and a gas sample air supply pipeline of the blower is connected to a test pipeline where a sensing end of the sensor is located;

[0011] The vent is connected to the rear section of the gas sample delivery pipeline and is connected to the environment; the vent also includes a heat dissipation hole;

[0012] The battery assembly includes a battery slot and a battery, wherein the battery is arranged inside the battery slot, and a battery cover is clamped inside the battery slot; the power interface is electrically connected to the electrodes of the battery and the circuit board respectively; and the circuit board is signal-connected to the host computer.

[0013] As a preferred technical solution of the present utility model, the blood sugar display screen is a touch-type display screen.

[0014] As a preferred technical solution of the utility model, a power interface is provided at the rear end of the edge of the blood glucose meter housing, and the power interface is connected to the circuit board.

[0015] As a preferred technical solution of the utility model, a switch is provided on the surface of the shell, and the switch is electrically connected to the blood sugar information display screen and the power interface respectively.

[0016] As a preferred technical solution of the utility model, the blowing port is arranged in the middle position of the front end of the edge of the shell, and one end of the blowing nozzle is inserted into the blowing port to form a gas sealing channel.

[0017] As a preferred technical solution of the utility model, the blowing nozzle includes upper and lower ends, and the diameter of the lower end of the blowing nozzle is slightly smaller than the diameter of the blowing port.

[0018] Compared with the prior art, the utility model has the following beneficial effects and advantages:

[0019] 1. The utility model non-invasive blood glucose meter is small, light and compact in design, reducing unnecessary parts and space. Users can carry it with them, charge it through the power interface, store electricity through the battery assembly, and the display screen and switch button are convenient for reading data and operating;

[0020] 2. The utility model non-invasive blood glucose meter adopts a fully sealed design, without a mouthpiece. The rectangular or cylindrical structure is easy to take and put into pockets, bags or other small personal belongings for carrying at any time, which can avoid the trouble of cleaning the air outlet before using the integrated blood glucose meter; whether dining out or working, blood glucose monitoring can be conveniently performed. The use of an external mouthpiece can reduce the risk of contamination of the instrument, and the mouthpiece can be replaced after use to ensure hygiene and accuracy;

[0021] 3. Any interference from external air may affect the accuracy of blood glucose measurement results. Therefore, the utility model non-invasive blood glucose meter is equipped with a sealing plug at the air port, which can effectively prevent dust, bacteria, moisture or other pollutants from entering the air port of the blood glucose meter, help keep the air port clean and hygienic, and reduce cross infection. In addition, it can prevent wear and damage to the air port and protect the air port from physical damage from the external environment, such as collision, friction or other unexpected situations, thereby extending the service life of the blood glucose meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a non-invasive blood glucose meter provided by a preferred embodiment of the utility model.

[0023] Figure 2 It is a structural schematic diagram of a non-invasive blood glucose meter mouthpiece provided in a preferred embodiment of the utility model.

[0024] Figure 3 It is a front view of the non-invasive blood glucose meter provided by the preferred embodiment of the utility model.

[0025] Figure 4 It is a left view of the non-invasive blood glucose meter provided by the preferred embodiment of the utility model.

[0026] Figure 5 It is a top view of the non-invasive blood glucose meter provided by the preferred embodiment of the utility model.

[0027] Figure 6 This is a connection structure diagram between the non-invasive blood glucose meter and the host computer provided by the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] like Figure 1-6 As shown, a non-invasive blood glucose meter is used to detect the chemical components of blood glucose markers in the gas sample exhaled by the tester. The non-invasive blood glucose meter includes a housing 1, a blood glucose information display screen 2 and a vent are provided on the front of the housing 1, a blowing component 4 is provided at the front end of the edge of the housing 1, and a power supply interface is provided at the rear end of the housing 1. A battery component, a circuit board, a sensor, and a blower are installed inside the housing 1;

[0031] The sensor is a gas sensor, which is installed on a circuit board and is connected to the circuit board signal; the front end of the blowing component 4 includes a blowing port 5, on which a blowing nozzle 6 and a blowing port sealing plug are replaceable and removable, and the blowing nozzle 6 and the blowing port sealing plug can be assembled and sealed with the blowing port 5 respectively. When in use, the blowing port sealing plug plugged on the blowing port 5 is opened, and the blowing nozzle 6 is plugged into the blowing port 5, and the subject blows air through the blowing port 5 through the blowing nozzle 6; the blower is connected to the blowing port 5 through an air supply pipeline, and a gas filtering device is provided on the air supply pipeline, and the gas sample air supply pipeline of the blower is connected to the test pipeline where the sensing end of the sensor is located;

[0032] The vent is connected to the rear section of the gas sample delivery pipeline and is connected to the environment; the vent also includes a heat dissipation hole;

[0033] The battery assembly includes a battery slot and a battery, wherein the battery slot is provided with a battery, and a battery cover is snapped into the battery slot; the power interface is electrically connected to the electrodes of the battery and the circuit board respectively; and the circuit board is signal-connected to the host computer 3 .

[0034] The non-invasive blood glucose meter of this embodiment changes the air outlet of the exhaled gas detection blood glucose meter into an external mouthpiece to provide a more convenient and hygienic user experience. By using an external mouthpiece, the mouthpiece can be easily connected to the blood glucose meter, and then the exhaled gas is sent to the instrument for analysis by blowing. This design can reduce the risk of contamination of the instrument, and the mouthpiece can be replaced after use to ensure hygiene and accuracy. The design of changing the air outlet to an external mouthpiece may require some changes to the blood glucose meter to ensure that the connection between the mouthpiece and the instrument is stable and sealed. In addition, the design and material selection of the mouthpiece need to be considered to ensure that its interaction with the exhaled gas does not interfere with the accuracy of blood glucose measurement. The non-invasive blood glucose meter of this embodiment is easy to use, and the tester can also carry it when going out. It is easy for individuals to operate and save medical resources. The circuit board can be connected to the host computer 3 through a signal line or a wireless communication signal to realize a richer interface interactive control of the non-invasive blood glucose meter, improve the user experience, and the non-invasive blood glucose meter can also use the host computer as a data storage device to realize flexible detection data storage and external data call transmission. The host computer 3 may adopt a portable communication device or a portable computer to realize convenient signal interaction transmission between the non-invasive blood glucose meter and the portable terminal.

[0035] Embodiment 2:

[0036] This embodiment is basically the same as the first embodiment, except that:

[0037] In this embodiment, see Figure 1 , Figure 3 The blood glucose display screen 2 is a touch screen. The non-invasive blood glucose meter of this embodiment can output image information, which is convenient for the tester to intuitively grasp the detection information.

[0038] Embodiment three:

[0039] This embodiment is basically the same as the above embodiment, with the following features:

[0040] In this embodiment, see Figure 1 The edge of the blood glucose meter housing has a power interface at the rear end, and the power interface is connected to the circuit board. The non-invasive blood glucose meter of this embodiment can be used with an external power supply, or the battery can be charged with an external charger to achieve a longer offline standby working state.

[0041] Embodiment 4:

[0042] This embodiment is basically the same as the above embodiment, with the following features:

[0043] In this embodiment, see Figure 1-3 The surface of the housing 1 is provided with a switch, and the switch is electrically connected to the blood glucose information display screen 2 and the power interface respectively. The non-invasive blood glucose meter of this embodiment is easy to operate, and the control method is simple and convenient.

[0044] Embodiment five:

[0045] This embodiment is basically the same as the above embodiment, with the following features:

[0046] In this embodiment, see Figure 1-2 The blowing port 5 is arranged at the middle position of the front end of the edge of the shell 1, and one end of the blowing nozzle 6 is plugged into the blowing port 5 to form a gas sealing channel; the blowing port sealing plug is made of silicone material.

[0047] The mouthpiece 6 includes an upper and a lower end. The diameter of the lower end of the mouthpiece 6 is slightly smaller than the diameter of the blowing port 5. The mouthpiece 6 is made of plastic.

[0048] The blowing assembly of the non-invasive blood glucose meter of this embodiment has a simple structure, and changing the blowing port of the exhaled gas detection blood glucose meter to an external mouthpiece can provide a more convenient and hygienic use experience. By using an external mouthpiece, the mouthpiece can be easily connected to the blood glucose meter, and then the exhaled gas is sent into the instrument for analysis by blowing. This design can reduce the risk of contamination of the instrument, and the mouthpiece can be replaced after use to ensure hygiene and accuracy. Changing the design of the blowing port to an external mouthpiece may require some modifications to the blood glucose meter to ensure that the connection between the mouthpiece and the instrument is stable and sealed. In addition, the design and material selection of the mouthpiece need to be considered to ensure that its interaction with the exhaled gas does not interfere with the accuracy of blood glucose measurement.

[0049] Embodiment six:

[0050] This embodiment is basically the same as the above embodiment, with the following features:

[0051] In this embodiment, see Figure 1 The blood glucose meter is not in use. By closing the air port sealing plug of the air port, the entire cavity is sealed. At this time, the switch is in the off state, and the screen of the mobile phone APP port and the selected display screen do not display or show that the blood glucose meter is not turned on.

[0052] Embodiment seven:

[0053] This embodiment is basically the same as the above embodiment, with the following features:

[0054] In this embodiment, the blood glucose meter is in use. By opening the air port sealing plug of the air port, the lower end of the replaceable mouthpiece is inserted into the air port, the switch is turned on, and a numerical value is generated after exhaling through the mouth for a few seconds, and displayed on the display.

[0055] In summary, the non-invasive blood glucose meter of the above embodiment of the utility model includes a blood glucose meter housing, a blood glucose display screen and a vent installed on the front of the blood glucose meter housing, an air blowing assembly installed at the front end of the edge of the blood glucose meter housing, a power interface installed at the rear end of the edge of the blood glucose meter housing, and a battery assembly, a circuit board, a sensor, a blower, and a power supply installed inside the blood glucose meter housing. In the utility model, by making the mouthpiece detachable from the housing and using a disposable replaceable mouthpiece, the gas inside the blood glucose meter is kept airtight when not in use, thereby improving the accuracy of the detection. The blood glucose detection device of the utility model meets the detection needs of different groups of people and has the advantages of being small and portable.

[0056] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments, and various changes can be made according to the purpose of the invention of the utility model. Any changes, modifications, substitutions, combinations or simplifications made according to the spirit and principle of the technical solution of the utility model should be equivalent replacement methods. As long as they meet the purpose of the invention of the utility model and do not deviate from the technical principles and inventive concepts of the utility model, they belong to the protection scope of the utility model.

Claims

1. A non-invasive blood glucose meter for detecting chemical components of blood glucose markers in a gas sample exhaled by a test subject, the non-invasive blood glucose meter comprising a housing (1), characterized in that: A blood sugar information display screen (2) and a vent are provided on the front of the housing (1), a blowing assembly (4) is provided at the front end of the edge of the housing (1), a power supply interface is provided at the rear end of the housing (1), and a battery assembly, a circuit board, a sensor, and a blower are installed inside the housing (1); The sensor is a gas sensor, which is mounted on a circuit board and is connected to the circuit board signal; the front end of the blowing assembly (4) includes a blowing port (5), on which a blowing nozzle (6) and a blowing port sealing plug are replaceable and removable, and the blowing nozzle (6) and the blowing port sealing plug are respectively assembled and sealed with the blowing port (5); when in use, the blowing port sealing plug plugged on the blowing port (5) is opened, the blowing nozzle (6) is plugged into the blowing port (5), and the subject blows air through the blowing port (5) through the blowing nozzle (6); the blower is connected to the blowing port (5) through an air supply pipeline, and a gas filtering device is provided on the air supply pipeline, and the gas sample air supply pipeline of the blower is connected to the test pipeline where the sensing end of the sensor is located; The vent is connected to the rear section of the gas sample delivery pipeline and is connected to the environment; the vent also includes a heat dissipation hole; The battery assembly comprises a battery slot and a battery, wherein the battery slot is provided with a battery, and a battery cover is clamped inside the battery slot; the power interface is electrically connected to the electrodes of the battery and the circuit board respectively; and the circuit board is signal-connected to the host computer (3).

2. The non-invasive blood glucose meter according to claim 1, characterized in that: The blood sugar information display screen (2) is a touch-type display screen.

3. The non-invasive blood glucose meter according to claim 1, characterized in that: A power interface is provided at the rear end of the edge of the blood glucose meter housing, and the power interface is connected to the circuit board.

4. The non-invasive blood glucose meter according to claim 1, characterized in that: A switch is provided on the surface of the housing (1), and the switch is electrically connected to the blood sugar information display screen (2) and the power interface respectively.

5. The non-invasive blood glucose meter according to claim 1, characterized in that: The blowing port (5) is arranged at the middle position of the front end of the edge of the shell (1), and one end of the blowing nozzle (6) is inserted into the blowing port (5) to form a gas sealing channel.

6. The non-invasive blood glucose meter according to claim 1, characterized in that: The blowing nozzle (6) comprises an upper and a lower end, and the diameter of the lower end of the blowing nozzle (6) is slightly smaller than the diameter of the blowing port (5).

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