Novel card type sample automatic detection structure

Abstract

The utility model discloses a novel card type sample automatic detection structure, and belongs to the technical field of expiration measurement equipment. Comprising a first supporting block and a second supporting block which are arranged in a matched mode, a first groove and a second groove are formed in the attached side faces of the first supporting block and the second supporting block respectively, and the first groove and the second groove are matched to form a cavity for containing a sampling card; the first groove and the second groove are matched to form a cavity which is internally provided with a correlation optical coupler, and the correlation optical coupler is configured to be arranged between the local card and the correlation optical coupler when the sampling card is inserted. The sampling card is detected by arranging the correlation optical couplers, when the sampling card is inserted into the cavity formed by the first supporting block and the second supporting block, the local part of the sampling card is inserted between the correlation optical couplers to form shielding, and the correlation optical couplers detect the shielding and send out detailed signals. And the photosensitive fault is effectively reduced, the cost is lower, and the use is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of breath measurement equipment, in particular to a novel card-type sample automatic detection structure. Background Art

[0002] As people's quality of life improves, they pay more attention to their own health problems, especially to diseases that are contagious and can cause cancer. The diagnosis of Helicobacter pylori infection has emerged. The carbon 14 breath test for the diagnosis of Helicobacter pylori infection is widely used for its low cost, fast detection, safety, accuracy and low risk.

[0003] The card-type carbon 14 breath test diagnostic instrument is an instrument that detects the carbon dioxide gas sampling card exhaled by the subject after taking urea carbon 14 capsules for a period of time. Its main principle is to use a Geiger counter to count the number of carbon isotopes carbon 14 contained in the breath card to determine whether the subject is infected with Helicobacter pylori.

[0004] The measurement room of the card-type carbon 14 breath test diagnostic instrument is the place where the exhaled carbon dioxide gas sampling card is tested after the subject takes the urea carbon 14 capsule for a period of time. The measurement room is a cavity formed by installing a Geiger counter tube on each side of a set of stainless steel supports. The detection window size of the Geiger counter tube is basically the same as the inspection window of the gas sample collection card. This is to ensure that sufficient exhaled carbon dioxide gas is collected within a unit time to the greatest extent and is fully detected. In this way, a positioning device is required to both sense and feedback the insertion position of the sample card and trigger the automatic detection function.

[0005] The existing positioning device on the market uses a reflective optical coupler detection device. This device has a great disadvantage that the light sensitivity is difficult to control and is easily disturbed by external environmental factors. For example, when there is no sampling card inserted but sunlight or light directly shines on the sampling slot in the measurement room, the reflective optical coupler will detect that there is a card and automatically detect it. It is also possible that when the light is too dim, the reflective optical coupler cannot detect the presence of the sampling card in the measurement room when the sampling card is inserted and will not detect it. These two types of failures account for more than 30% of the total instrument failures.

[0006] Therefore, everyone tried to improve the situation by making the size of the injection port smaller so that it could only accommodate the entry of the card and minimize the interference of external light on the measurement chamber. This design also has great shortcomings. First, it increases the difficulty of installation. Mechanical installation without margin adjustment not only requires higher precision in mechanical processing, but also requires high installation skills of operators, which increases the defective rate, increases production costs, and wastes a lot of production materials. Secondly, the end-user experience is particularly bad, which increases the difficulty of operation. Without a relatively wide guide groove, the operator must align the injection slot very accurately to insert the sample into the measurement chamber.

[0007] This design solves the problem of photosensitivity failure, but it also adds difficulties to production and use. The annual domestic sales volume of carbon 14 breath test diagnostic instruments is around 100,000 units, and several hundred thousand units are sold to Southeast Asia, Central Asia and other regions, bringing a large amount of foreign exchange to the country. Due to the overall cyclical fluctuations in the world economy, buyers are becoming more and more sensitive to prices, which also hinders the application of high-cost new technologies in actual production products. Therefore, the cost of products and technologies that can be used to improve the defects of existing equipment must not be high, otherwise they cannot be truly used in actual production. Therefore, it is necessary to study a technical solution that can solve the problem of high failure rate of photosensitivity detection without increasing production costs and difficulty of use. Utility Model Content

[0008] 1. Technical problems to be solved by the utility model

[0009] The utility model aims to solve the problem of photosensitivity failure in the reflective optical coupling detection device used in the existing breath measurement equipment.

[0010] 2. Technical solution

[0011] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0012] The utility model discloses a novel card-type sample automatic detection structure, comprising:

[0013] Support block 1 and support block 2 are arranged to cooperate with each other, and groove 1 and groove 2 are respectively provided on the sides of the support block 1 and the support block 2 that are in contact with each other, and groove 1 and groove 2 cooperate to form a cavity for accommodating a sampling card; support block 1 is provided with a penetrating mounting hole 1, and support block 2 is provided with a penetrating mounting hole 2, and Geiger counter tubes are provided in mounting hole 1 and mounting hole 2, and a counter-radiation optical coupler is provided in the cavity formed by the cooperation of groove 1 and groove 2, and the counter-radiation optical coupler is configured to be locally stuck and between the counter-radiation optical coupler when the sampling card is inserted.

[0014] Preferably, a positioning column is provided on the side of the support block one close to the support block two, and a positioning hole is provided on the side of the support block two close to the support block one, and the positioning column can be embedded in the positioning hole to fix the support block one and the support block two.

[0015] Preferably, the incident optical coupler is electrically connected to a controller, and the controller is electrically connected to the Geiger counter tube and controls the on and off of power supply to the Geiger counter tube.

[0016] Preferably, the opposing optical coupler is fixedly connected to the supporting block 1 or the supporting block 2 by means of screws.

[0017] Preferably, the sampling card is a carbon dioxide gas sampling card.

[0018] Preferably, the volume of the cavity formed by the cooperation of the groove 1 and the groove 2 is greater than 10-15% of the volume of the sampling card.

[0019] Preferably, the sizes of the mounting hole 1 and the mounting hole 2 are adapted to the Geiger counter tube so that when the Geiger counter tube is installed in the mounting hole 1 or the mounting hole 2, the Geiger counter tube is flush with the surface of the mounting hole 1 or the mounting hole 2.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0022] The utility model discloses a novel card-type sample automatic detection structure, including a support block 1 and a support block 2 that are arranged in cooperation with each other, and grooves 1 and 2 are respectively provided on the sides of the support block 1 and the support block 2 that are in contact with each other, and grooves 1 and 2 cooperate to form a cavity for accommodating a sampling card; a through-mounting hole 1 is provided on the support block 1, and a through-mounting hole 2 is provided on the support block 2, and Geiger counter tubes are provided in the mounting holes 1 and 2, and a counter-optical coupler is provided in the cavity formed by the cooperation of grooves 1 and 2. The counter-optical coupler is configured so that when the sampling card is inserted, part of the sampling card will be inserted between the counter-optical coupler and form an obstruction. The counter-optical coupler detects the obstruction and sends a detailed signal, which is more accurate and effectively reduces photosensitivity failures compared to detection using reflective optical couplers, and is more convenient to use with lower costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a schematic diagram of the overall structure of a novel card-type sample automatic detection structure.

[0024] Explanation of the symbols in the schematic diagram:

[0025] 100, support block 1; 110, mounting hole 1; 120, positioning column; 130, groove 1;

[0026] 200, support block 2; 210, mounting hole 2; 220, positioning hole; 230, groove 2;

[0027] 300, Geiger counter; 400, through-beam optocoupler; 500, sampling card. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0031] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0032] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] Example 1

[0035] See attached Figure 1 A novel card-type sample automatic detection structure of the present embodiment includes a supporting block 100 and a supporting block 200 that are arranged in cooperation with each other, and the sides of the supporting block 100 and the supporting block 200 that are in contact with each other are respectively provided with a groove 130 and a groove 230, and the groove 130 and the groove 230 cooperate to form a cavity for accommodating a sampling card 500; the supporting block 100 is provided with a penetrating mounting hole 110, and the supporting block 200 is provided with a penetrating mounting hole 210, and the mounting hole 110 and the mounting hole 210 are both provided with a Geiger counter tube 300, and the groove 130 and the groove 230 cooperate to form a cavity formed by the groove 130 and the groove 230. The opposing optical coupler 400 is configured to be locally stuck and between the opposing optical coupler 400 when the sampling card 500 is inserted. The structure of this embodiment detects the sampling card 500 by setting up a through-beam optical coupler 400. When the sampling card 500 is inserted into the cavity formed by the support block 100 and the support block 200, a part of the sampling card 500 will be inserted between the through-beam optical coupler 400 and form an obstruction. The through-beam optical coupler 400 detects the obstruction and sends out a detailed signal. Compared with the detection using a reflective optical coupler, it is more accurate and effectively reduces photosensitivity failures, and is lower in cost and more convenient to use.

[0036] In this embodiment, the side of the support block 100 close to the support block 200 is provided with a positioning column 120, and the side of the support block 200 close to the support block 100 is provided with a positioning hole 220, and the positioning column 120 can be inserted into the positioning hole 220 to fix the support block 100 and the support block 200. The positioning column 120 and the positioning hole 220 can be conveniently assembled and disassembled.

[0037] The through-beam optical coupler 400 is electrically connected to a controller, and the controller is electrically connected to the Geiger counter tube 300 and controls the power supply of the Geiger counter tube 300. When the through-beam optical coupler 400 detects an obstruction, it sends a signal to the controller, and the controller controls the Geiger counter tube 300 to be powered on to work, and controls the power-on time of the single Geiger counter tube 300 through a timer. When the time is up, the through-beam optical coupler 400 senses that there are still objects blocking the through-beam optical coupler 400, and the through-beam optical coupler 400 feeds back information to the controller, and the controller issues an alarm to prompt the user to take out the sampling card 500. The through-beam optical coupler 400 is fixedly connected to the support block 1 100 or the support block 2 200 by screws. The controller of this embodiment is a prior art in the field, so it is not described in detail.

[0038] The sampling card 500 is a carbon dioxide gas sampling card. The volume of the cavity formed by the cooperation of the groove 1 130 and the groove 2 230 is greater than 10-15% of the volume of the sampling card 500. The size of the mounting hole 1 110 and the mounting hole 2 210 is adapted to the Geiger counter tube 300 so that when the Geiger counter tube 300 is installed in the mounting hole 1 110 or the mounting hole 2 210, the Geiger counter tube 300 is flush with the surface of the mounting hole 1 110 or the mounting hole 2 210. It can effectively ensure that when the sampling card 500 is inserted into the cavity, the sampling card 500 will partially block the incident optical coupler 400, thereby starting monitoring.

[0039] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A new type of card-type sample automatic detection structure, characterized in that: include A supporting block 1 (100) and a supporting block 2 (200) are arranged in cooperation with each other, and the sides of the supporting block 1 (100) and the supporting block 2 (200) that are in contact with each other are respectively provided with a groove 1 (130) and a groove 2 (230), and the groove 1 (130) and the groove 2 (230) cooperate to form a cavity for accommodating a sampling card (500); a through mounting hole 1 (110) is provided on the supporting block 1 (100), and a through mounting hole 2 (210) is provided on the supporting block 2 (200), and a Geiger counter tube (300) is provided in each of the mounting hole 1 (110) and the mounting hole 2 (210), and a counter optical coupler (400) is provided in the cavity formed by the cooperation of the groove 1 (130) and the groove 2 (230), and the counter optical coupler (400) is configured to be locally stuck between the counter optical coupler (400) when the sampling card (500) is inserted.

2. According to claim 1, the novel card-type sample automatic detection structure is characterized in that: The support block one (100) is provided with a positioning column (120) on the side close to the support block two (200), and the support block two (200) is provided with a positioning hole (220) on the side close to the support block one (100). The positioning column (120) can be embedded in the positioning hole (220) to fix the support block one (100) and the support block two (200).

3. The novel card-type sample automatic detection structure according to claim 1 is characterized in that: The incident optical coupler (400) is electrically connected to a controller, and the controller is electrically connected to the Geiger counter tube (300) and controls the on and off of power supply to the Geiger counter tube (300).

4. The novel card-type sample automatic detection structure according to claim 1 is characterized in that: The opposing optical coupler (400) is fixedly connected to the supporting block one (100) or the supporting block two (200) via screws.

5. The novel card-type sample automatic detection structure according to claim 1 is characterized in that: The sampling card (500) is a carbon dioxide gas sampling card.

6. The novel card-type sample automatic detection structure according to claim 1 is characterized in that: The volume of the cavity formed by the cooperation of the groove 1 (130) and the groove 2 (230) is greater than 10-15% of the volume of the sampling card (500).

7. The novel card-type sample automatic detection structure according to claim 1 is characterized in that: The sizes of the mounting hole one (110) and the mounting hole two (210) are adapted to the Geiger counter tube (300) so that when the Geiger counter tube (300) is installed in the mounting hole one (110) or the mounting hole two (210), the Geiger counter tube (300) is flush with the surface of the mounting hole one (110) or the mounting hole two (210).

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