TWI786811B - Alcohol detection test strip - Google Patents

Abstract

An alcohol detection test strip for detecting oral alcohol concentration. The alcohol detection test strip includes: a test strip body, including an inner cavity area, an outer cavity area, and a lip covering area. The inner cavity area is located innerside of the user’s mouth when the test is performed. The extra-cavity area is located outside of the user’s mouth when the test is performed, and at least a part of the lip covering area is covered by the user’s lips when the test is performed; a air inlet which disposed in the inner cavity area for the gas to enter therein; an air outlet which disposed in the outer cavity area for the gas to exhaust therefrom. The convection channel is connected between the air inlet and the air outlet; a detection circuit located in the convection channel.

Description

Alcohol test strips

The invention relates to an alcohol detection test piece, in particular to an alcohol detection test piece which can generate gas convection.

Existing alcohol detectors in the market use the human body to exhale the deep lung air, convert the alcohol concentration therein and display quantitative results. It can be used as an important detection tool for traffic police to detect driving alcohol content during law enforcement, so as to effectively reduce the occurrence of major traffic accidents. It can also be used in other positions or places where drinking is prohibited in some high-risk areas, so as to avoid casualties and property losses. The alcohol detector in the prior art is bulky and inconvenient to carry, and the test data can only be checked through the tester itself, which is inconvenient to use. More importantly, the blowpipe-type alcohol detector with a mouthpiece is prone to gas and saliva from the previous user remaining in the instrument, causing the detection circuit of the instrument to be defaced, the measurement results to be inaccurate, and even possible There are health and safety issues such as the risk of infectious diseases, especially the highly contagious pneumonia virus that is prevalent in the world today, and it is even more necessary to avoid the risk of indirect contact.

The above-mentioned problems such as these have caused the existing alcohol detectors to be difficult to popularize, and have health and safety problems of insufficient accuracy and high risk.

The main purpose of the present invention is to provide a safe and hygienic alcohol test strip with miniature volume, high precision and low cost, which can be used once and discarded because of the low manufacturing cost.

In order to achieve the above and other purposes, the present invention provides an alcohol detection test strip for detecting oral alcohol concentration, the alcohol detection test strip includes: a test strip body, an air inlet, an air outlet, a convection channel and a Detection circuit, the test piece body includes an inner cavity area, an outer cavity area and a lip covering area, the inner cavity area is located in the user's mouth when performing detection, and the extra-cavity area is located outside the user's oral cavity when performing detection , at least a part of the lip covering area is covered by the user's lips when the detection is performed. The air inlet is located in the inner area of the cavity for gas introduction; the air outlet is located in the outer area of the cavity for gas discharge. The convection channel is connected between the air inlet and the air outlet; the detection circuit is arranged in the convection channel.

Based on the aforementioned design, the user does not need to use a measuring instrument, but only needs to use a detection test piece to detect the alcohol concentration of human lung gas, and the test piece can be used directly without mechanical connection with other external hardware devices , In addition, the test piece is a single-use disposable test piece, which avoids the risk of infectious diseases caused by many saliva residues, and improves the accuracy of gas detection. At the same time, the overall size of the detection device is greatly reduced, and the manufacturing cost can still be controlled to be far lower than the selling price of the existing alcohol detector, thereby solving the long-standing problems of insufficient accuracy and difficulty in popularization in the field of gas alcohol concentration detection, allowing More potential users or establishments can also perform potentially in-demand alcohol testing at low cost.

Please refer to Figures 1 to 3, which depict one of the embodiments of the present invention, wherein the alcohol detection test piece can be used for the detection of various gases (such as electrochemical detection) to detect whether the sample to be tested contains The target analyte, the concentration of the target analyte and/or other values that need to be detected, the target analyte can be but not limited to ethanol, carbon dioxide, carbon monoxide and isopropanol and other single or mixed gases. Values may be, but are not limited to, physical parameters such as freezing point, density, vapor pressure, and dew point. The alcohol detection test piece can be used in conjunction with a receiving unit 2 that is not mechanically connected to the alcohol testing test piece. The mechanical connection refers to the physical direct contact between the two components. The receiving unit 2 can be but not limited to a mobile phone , a tablet computer, a computer or other devices that can form a wireless connection with the alcohol test strip and can display, process and/or relay and transmit test parameter signals.

The alcohol detection test piece includes a test piece body 1 , an air inlet 10 , an air outlet 20 , a convection channel 30 and a detection circuit 40 . The test piece body 1 also includes an inner cavity area 1a, an outer cavity area 1b and a lip covering area 1c, the lip covering area 1c is located at the junction of the inner cavity area 1a and the outer cavity area 1b, and the air inlet 10 is located at The air outlet is located in the inner chamber of the test piece body, and the air outlet is located in the outer chamber of the test piece body. The convection channel 30 is connected between the air inlet 10 and the air outlet 20 . The detection circuit 40 is located in the convection channel 30 . The test piece body can further have a temperature adjustment unit located in the convection channel.

The air inlet 10 is arranged in the cavity area 1a of the front end of the test piece body 1, which can be a plurality of air holes arranged at intervals, and the air outlet 20 is arranged in the outer cavity area 1b of the rear end of the test piece body 1, which can be a concentrated air hole channel or for A plurality of air holes arranged at intervals, the lip covering area 1c is located at the junction of the inner cavity area 1a and the outer cavity area 1b, and the range of the lip covering area 1c can be universally suitable for each person's mouth shape. The convection channel 30 is a gas circulation channel arranged in the middle of the test piece body 1 , extends along the length direction of the test piece body 1 , and communicates between the air inlet 10 and the gas outlet 20 . The detection circuit 40 is arranged in the convection channel 30, and the detection circuit 40 may include but not limited to a working electrode, a reference electrode, an auxiliary electrode and/or a detection electrode; and, depending on the target analyte or the value to be detected, at least a part of the detection circuit 40 It may also include, but not limited to, chemical reagents, emission spectra, catalysts, etc. that are attached to conductors and help to detect target analytes or values to be detected, and help to react with target analytes (such as electrochemical reactions) ). The temperature adjustment unit 50 is disposed in the convection channel 30 . The temperature adjustment unit 50 may be but not limited to a metal heating plate or a voltage heating plate, and is used to change the temperature and specific gravity of the gas flowing through the convection channel 30 .

The microprocessing unit 60, the wireless transmission unit 70 and the power supply unit 80 are all arranged on the test piece body 1. The microprocessing unit 60 is electrically connected to the detection circuit 40. The wireless transmission unit 70 can be but not limited to a bluetooth transmission chip, and the power supply unit 80 It can be a capacitor, a fuel cell or other rechargeable or non-rechargeable micro-batteries for supplying power to the micro-processing unit 60 and the wireless transmission unit 70 . In a possible implementation, the alcohol detection test strip can be recycled after the first use, especially, the rechargeable battery of the alcohol detection test strip can be recycled for other new or remanufactured test strip bodies 1 .

The power activation means 3 is used for the user to selectively activate the ability of the power supply unit 80 to supply power to the temperature adjustment unit 50, the microprocessing unit 60 and the wireless transmission unit 70, that is, when the power supply capability of the power supply unit 80 is activated, the power supply unit 80 can supply power to the temperature adjustment unit 50, the microprocessing unit 60 and the wireless transmission unit 70; otherwise, when the power supply capability of the power supply unit 80 is not activated, the power supply unit 80 cannot supply power to the temperature adjustment unit 50, the microprocessing unit 60 and the wireless transmission unit 70. The wireless transmission unit 70 is used to reserve power. The power activation means 3 is, for example, a plastic film that can block the power unit 80 from other circuits, thereby temporarily deactivating the power supply unit 80; when the plastic film is removed, the power unit 80 contacts the circuit and resumes power supply. In other possible implementations, the power activation means 3 may be but not limited to a switch or a knob; in other possible implementations, the power activation means 3 is an action of putting the power supply unit 80 into the test strip body 1 .

In order to reduce the cost of the alcohol detection test strip, the alcohol detection test strip does not have a gold finger for mechanical connection with an external detector and a display for displaying the detection parameter signal.

When the user holds an alcohol detection test piece and prepares to detect the alcohol concentration in the body, the power supply unit 80 can be activated by the power activation means 3 first, so that the temperature adjustment unit 50, the micro-processing unit 60 and the wireless transmission unit 70 receive the power supplied by the power supply unit 80 to start operate. Then the user opens his mouth, inserts the alcohol detection test strip into his oral cavity, and makes his lips cover the lip covering area 1c of the test piece body 1 up and down, so that at least a part of the lip covering area 1c is in the execution During detection, it is covered by the user's lips, so that the cavity area 1a of the test piece body completely enters the inside of the user's oral cavity, and the user continues to hold the test piece body 1 tightly, and blows hard on the alcohol detection test piece to make The air in the deep layer of the user's lungs is introduced in large quantities into the air inlet 10 air holes filled with the front end, upper and lower sides, and left and right sides of the test piece body 1 by blowing air, and the air then flows into the convection channel 30 At this time, the gas flowing into the convection channel 30 can be convected by the force of the user's blowing air, so the gas can generate a greater flow in the convection channel 30, and then the gas in the convection channel 30 can be dispersed. more uniform.

The temperature adjustment unit 50 provided in the convection channel 30 can also be used at the same time to start heating the gas, so that the gas blown into the convection channel 30 can be heated up, and then the specific gravity of the gas itself can be changed to make the specific gravity of the gas smaller, so that the gas can be Greater flow is generated in the convection channel 30, so that the gas in the convection channel 30 is distributed more evenly, and the concentration of the gas in the convection channel 30 is also more evenly distributed, so for the composition of the gas in the test piece body 1 and Concentration information can be sent to the detection circuit 40 more uniformly.

Please continue to refer to Figure 4, when the gas information in the human body is sent to the detection circuit 40, then the micro-processing unit 60 is used to send a control signal for detection to the detection circuit 40; after the detection circuit 40 receives the control signal, use The detection circuit 40 performs an electrochemical reaction with the sample to be detected and feeds back a feedback signal to the microprocessing unit 60; the microprocessing unit 60 is used to convert the feedback signal into a detection parameter signal; and the microprocessing unit 60 is used to convert the detection parameter signal The signal is sent to the receiving unit 2 which is not mechanically connected to the alcohol test strip with the convection channel 30 via the wireless transmission unit 70 ; the detection parameter signal is displayed on a display 4 of the receiving unit 2 .

To sum up, the user does not need to use a measuring instrument, but only needs to use a tiny alcohol test strip to generate and send out the detection gas parameter signal, and can use the user's existing personal devices such as mobile phones or tablet computers. Receive and display the detection parameter signal, and the test piece can be used directly without mechanical connection with other external hardware devices, and at the same time, the price can still be controlled to be much lower than the price of the existing measuring instrument, thus solving the problem of The long-standing problems in the field of alcohol detection that are not easy to promote allow more potential users to perform alcohol gas detection at low cost. More importantly, this alcohol test strip is a single-use disposable test strip, which greatly reduces the risk of infectious diseases caused by saliva and gas residues caused by reusable blowpipe contact mouthpiece alcohol detectors, and The accuracy of the detection results of the test piece detection circuit being defaced.

Further, the alcohol detection test piece has a temperature adjustment unit 50, which can heat up the gas to be tested, so that the specific gravity of the gas to be tested will be reduced due to the temperature rise, and the convection effect of the gas in the test piece will be strengthened, and due to the convection of the gas convection The improvement makes the detected gas concentration more stable and uniform, and makes the detection results of the test piece more accurate.

1: Test piece body

1a: Intraluminal area

1b: extraluminal area

1c: lip covering area

2: Receive element

3: Power activation means

4: Display

10: air inlet

20: Air outlet

30: Convection channel

40: Detection circuit

50:Temperature adjustment unit

60: Micro-processing unit

70: Wireless transmission unit

80: Power supply unit

Fig. 1 is a perspective view of one embodiment of the present invention.

Fig. 2 is a schematic diagram of one embodiment of the present invention.

Fig. 3 is a side view of one embodiment of the present invention.

FIG. 4 is a block diagram of one embodiment of the present invention.

1: Test piece body

1a: Intraluminal area

1b: extraluminal area

1c: lip covering area

10: air inlet

20: Air outlet

30: Convection channel

40: Detection circuit

Claims (5)

An alcohol detection test piece is used to detect oral alcohol concentration. The alcohol detection test piece includes: a test piece body, including an inner cavity area, an outer cavity area and a lip covering area. It is located in the mouth of the user, the extracavity area is located outside the mouth of the user when the detection is performed, at least a part of the lip covering area is covered by the lips of the user when the detection is performed; an air inlet is provided In the cavity area of the test piece body, for gas introduction; a gas outlet, located in the cavity area of the test piece body, for gas discharge; convection channel, connected between the gas inlet and the gas outlet ; a detection circuit, located in the convection channel; wherein the test piece body has a micro-processing unit, a wireless transmission unit and a power supply unit, wherein the detection circuit is electrically connected to the micro-processing unit, and the micro-processing unit is used To send a control signal for performing detection to the detection circuit, the detection circuit is used to react with the gas after receiving the control signal and feed back a feedback signal to the micro-processing unit, the micro-processing unit It is further used to convert the feedback signal into a detection parameter signal, and to send the detection parameter signal to a receiving unit that is not mechanically connected with the alcohol detection test piece through the wireless transmission unit, and the power supply unit is used to supply power to The micro-processing unit and the wireless transmission unit; wherein the alcohol detection test piece is a single-use disposable test piece. The alcohol test strip as claimed in claim 1, further comprising a power activation means for the user to selectively activate the ability of the power supply unit to supply power to the micro-processing unit and the wireless transmission unit. The alcohol detection test strip as claimed in claim 1, wherein the test strip body has a temperature adjustment unit disposed in the convection channel for changing the temperature and specific gravity of the gas flowing therethrough. The alcohol test strip as claimed in claim 1, wherein the power supply unit is a capacitor. The alcohol detection test strip according to any one of claims 1 to 4, wherein the alcohol detection test strip does not have a gold finger for mechanical connection with an external detector and a display for displaying the detection parameter signal.

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