A sampling structure for detecting helicobacter pylori

Abstract

The utility model discloses a helicobacter pylori detects with sampling structure, related field of bacterial detection sampler, including sampler, the sampling stick of installation in the rear end surface center of sampler, when using, the finger is placed on the pressing rod while taking up the sampler, open the lid and align the excrement needing sampling, then the finger presses the pressing rod and makes the sampling stick from the placement mouth and inserts into the excrement, releases the pressing rod and makes the sampling stick to carry the excrement sample and return to the inside of placement mouth, re -cover the lid and tighten, the sliding block is followed by rotating the gear ring and drives the baffle to move upward, the pressure in the inner chamber becomes big, the pressure sensitive membrane breaks the mixed solution and flows to the inside of placement mouth through the first passageway mouth and mixes with the excrement, after finishing, through the sliding block again, rotate the gear ring and drive the baffle to move downward, the mixed solution returns to the inner chamber and contacts the detection card through the second passageway mouth, and the detection can be carried out, need not the process, need not many articles to operate and can carry out the rapid detection, convenient for user to carry and use.

Description

Technical Field

[0001] This utility model relates to the field of bacterial detection sampler technology, specifically a sampling structure for detecting Helicobacter pylori. Background Technology

[0002] Helicobacter pylori is a Gram-negative spiral bacterium found on the gastric mucosa. When people are infected with Helicobacter pylori, it lowers the acidity in the stomach, allowing bacteria that cannot normally survive in the stomach to multiply, damage the gastric mucosa, and cause gastric acid to corrode normal tissue, resulting in ulcers that are slow to heal. Long-term ulcers are prone to perforation, cell xenogenesis, and cancer. In order to detect Helicobacter pylori, it is necessary to use a specific sampling and testing device.

[0003] There are four main methods for detecting Helicobacter pylori currently available on the market, including breath test, fecal antigen test, blood antibody test, and gastroscopy biopsy (dependent on gastroscopy). Fecal antigen test, as one of the methods for detecting Helicobacter pylori, usually involves scraping stool with a sampling stick, then inserting the sampling stick into a sample preservation tube to mix with a preservation solution, and then placing the mixture on an antigen test strip. However, this method is relatively cumbersome, requiring multiple separate items such as the sampling stick, preservation tube, and antigen test strip, and is also not convenient for carrying and moving. Utility Model Content

[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a sampling structure for Helicobacter pylori detection.

[0005] This invention is implemented as follows: a sampling structure for detecting Helicobacter pylori is constructed. The device includes a sampler, a sampling rod installed at the center of the rear end face of the sampler, a cover threaded to the rear end face of the sampler, a toothed ring rotatably connected to the outer side of the sampler, a third slot opened on the outer side of the front end of the toothed ring, a second slot opened on the opposite side of the third slot on the outer side of the front end of the toothed ring, a first slot opened between the third slot and the second slot on the outer side of the front end of the toothed ring, and a fixing plate fixedly connected to the outer side of the sampler.

[0006] It also includes a sliding groove on the upper surface of the fixed plate, a first spring fixedly connected to the inner wall of the sliding groove, a locking block slidably connected to the inner side of the sliding groove, and the end of the first spring away from the inner wall of the sliding groove being fixedly connected to the locking block. The locking block is engaged in the inner side of the first locking groove. A placement opening is provided at the center of the rear end face of the sampler. A connecting rod is slidably inserted into the center of the bottom surface of the inner side of the placement opening, and the upper end face of the connecting rod is fixedly connected to the sampling rod. The sampler has an inner cavity on the left and right sides of the placement opening, and a mixed liquid is injected into the inner side of the inner cavity. A reset spring is provided inside the sampler. A pressing rod is slidably inserted into the lower end face of the sampler, and the reset spring and the pressing rod are fixedly connected to each other.

[0007] Preferably, a first channel is provided between the upper half of the inner cavity and the placement port, and a pressure-sensitive membrane is fixedly connected to the inner side of the first channel. The pressure-sensitive membrane separates the inner cavity from the placement port. A partition is slidably connected to the inner side of the inner cavity, and a second channel is provided on the inner wall of the lower half of the inner cavity, with the partition located between the first channel and the second channel.

[0008] Preferably, the sampler has an observation window on its outer side, a detection card is fixedly connected to the inner side of the second channel, a gear is rotatably connected to the inner side of the sampler, and the gear meshes with the gear ring. A threaded cylinder is fixedly connected to the upper end face of the gear, and a screw is threadedly connected to the upper end face of the threaded cylinder. The upper end face of the screw is fixedly connected to the partition plate. Reserved openings are provided on the left and right sides of the bottom end face of the inner side of the placement port. A second spring is fixedly connected to the bottom end face of the inner side of the reserved opening. A slider is slidably connected to the inner side of the reserved opening, and the second spring and the slider are fixedly connected to each other.

[0009] Preferably, the locking block can be slidably locked into the first locking slot, the second locking slot, or the third locking slot on the toothed ring by the elastic force of the first spring, so as to achieve multi-position fixation of the toothed ring.

[0010] Preferably, the partition can slide within the inner cavity to control the flow of the mixture from the upper and lower halves of the inner cavity through the first and second channel openings for mixing and detection.

[0011] Preferably, the rotation of the gear is converted into linear movement of the partition through the threaded cylinder and screw, which is used to adjust the position of the partition in the inner cavity.

[0012] Preferably, the slider inside the reserved opening is slidable under the action of the second spring to control the air pressure balance inside the placement opening.

[0013] This utility model has the following advantages: This utility model provides an improved sampling structure for Helicobacter pylori detection, which, compared with similar devices, has the following improvements:

[0014] This utility model describes a sampling structure for Helicobacter pylori detection. When in use, the sampler is picked up while the finger is placed on the pressing lever. After opening the cover, the sampler is aligned with the stool sample. The finger presses the pressing lever, causing the sampling rod to extend from the placement port and insert into the stool. Releasing the pressing lever causes the return spring to carry the sampling rod back to the inside of the placement port with the stool sample. Afterward, the cover is closed and tightened. The sliding block then rotates the toothed ring, moving the partition upward and increasing the pressure inside the cavity. This causes the pressure-sensitive membrane to rupture, and the mixture flows through the first channel into the placement port to mix with the stool. Afterward, sliding the locking block again rotates the toothed ring, moving the partition downward and allowing the mixture to return to the inner cavity and contact the detection card through the second channel for testing. This rapid testing requires no complicated procedures or multiple items and is convenient for users to carry and use. Attached Figure Description

[0015] Figure 1 This is an exploded view of the sampler of this utility model;

[0016] Figure 2 This is a schematic diagram of the sampler of this utility model;

[0017] Figure 3 This is a utility model Figure 2 Enlarged view of structure A;

[0018] Figure 4 This is a plan view of the sampler of this utility model;

[0019] Figure 5 This is a utility model Figure 4 Enlarged view of structure B;

[0020] Figure 6 This is a utility model Figure 4 Enlarged schematic diagram of structure C.

[0021] The components are: sampler-1, sampling rod-2, cover-3, toothed ring-4, third bayonet-5, second bayonet-6, first bayonet-7, fixing plate-8, sliding groove-9, first spring-10, locking block-11, placement port-12, connecting rod-13, inner cavity-14, reset spring-15, pressing rod-16, first channel port-17, pressure sensitive membrane-18, partition plate-19, second channel port-20, observation window-21, detection card-22, gear-23, threaded cylinder-24, screw-25, reserved port-26, second spring-27, slider-28. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-6The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Example 1:

[0026] Please see Figures 1-6This utility model discloses a sampling structure for detecting Helicobacter pylori, comprising a sampler 1, a sampling rod 2 installed at the center of the rear end face of the sampler 1, a cover 3 threadedly connected to the rear end face of the sampler 1, a toothed ring 4 rotatably connected to the outer side of the sampler 1, a third latch 5 opened on the outer side of the front end of the toothed ring 4, a second latch 6 opened on the opposite side of the third latch 5 on the outer side of the front end of the toothed ring 4, a first latch 7 opened between the third latch 5 and the second latch 6 on the outer side of the front end of the toothed ring 4, a fixing plate 8 fixedly connected to the outer side of the sampler 1, a sliding groove 9 opened on the upper end face of the fixing plate 8, a first spring 10 fixedly connected to the inner wall of the sliding groove 9, and a locking block 11 slidably connected to the inner side of the sliding groove 9. One end of the inner wall of the sampler 10 away from the chute opening 9 is fixedly connected to the locking block 11. The upper surface of the locking block 11 is provided with an anti-slip coating. The locking block 11 is inserted into the inner side of the first locking slot 7. The rear end face of the sampler 1 is provided with a placement port 12. The bottom surface of the inner side of the placement port 12 is inserted and slidably connected with a connecting rod 13. The upper surface of the connecting rod 13 is fixedly connected to the sampling rod 2. The sampler 1 is provided with an inner cavity 14 on the left and right sides of the placement port 12. The inner cavity 14 is filled with a mixed liquid. The sampler 1 is provided with a reset spring 15. The lower end face of the sampler 1 is inserted and slidably connected with a pressing rod 16. The reset spring 15 and the pressing rod 16 are fixedly connected to each other. The upper half of the inner cavity 14 is connected to the placement port 12 with a first channel opening 17.

[0027] A pressure-sensitive membrane 18 is fixedly connected to the inner side of the first channel 17, separating the inner cavity 14 from the placement port 12. A partition 19 is slidably connected to the inner side of the inner cavity 14. A second channel 20 is opened on the lower half of the inner wall of the inner cavity 14, and the partition 19 is located between the first channel 17 and the second channel 20. Due to the obstruction of the partition 19, the mixed liquid inside the inner cavity 14 is located above the partition 19 in the upper half of the inner cavity 14. An observation window 21 is provided on the outer side of the sampler 1. A detection card 22 is fixedly connected to the inner side of the second channel 20, allowing observation of the detection card 22. A gear 23 is rotatably connected to the inner side of the sampler 1, and the gear 23 meshes with the gear ring 4. A threaded cylinder 24 is fixedly connected to the upper end face of the gear 23. A screw 25 is threadedly connected to the upper end face of the threaded cylinder 24, and the upper end face of the screw 25 is fixedly connected to the partition 19. Openings are located on the left and right sides of the bottom end face of the inner side of the placement port 12. A reserved port 26 is provided, and the outside of the sampler 1 is provided with a vent that communicates with the inside of the reserved port 26 to allow for exhaust. A second spring 27 is fixedly connected to the bottom surface of the inside of the reserved port 26, and a slider 28 is slidably connected to the inside of the reserved port 26. The second spring 27 and the slider 28 are fixedly connected to each other. The locking block 11 can be slidably locked into the first locking slot 7, the second locking slot 6, or the third locking slot 5 on the toothed ring 4 by the elastic force of the first spring 10, so as to realize the multi-position fixation of the toothed ring 4. The partition 19 can slide in the inner cavity 14 to control the flow of the mixture from the upper and lower half of the inner cavity 14 through the first channel port 17 and the second channel port 20 to achieve mixing and detection. The rotation of the gear 23 is converted into the linear movement of the partition 19 through the threaded cylinder 24 and the screw 25 to adjust the position of the partition 19 in the inner cavity 14. The slider 28 in the reserved port 26 can slide under the action of the second spring 27 to control the air pressure balance in the placement port 12.

[0028] The working principle of a sampling structure for Helicobacter pylori detection based on Example 1 is as follows:

[0029] First, when testing for Helicobacter pylori is required, manually pick up the sampler 1, then align the push rod 16 with yourself and place your finger on the push rod 16. Then open the cover 3, align it with the feces to be sampled, and press the push rod 16 with your finger to squeeze the reset spring 15. At the same time, the connecting rod 13 will drive the sampling rod 2 to extend from the placement port 12 and insert it into the feces. After releasing the push rod 16, the reset spring 15 will rebound and drive the sampling rod 2 to carry the fecal sample back to the inside of the placement port 12. After that, put the cover 3 back on and tighten it to make the inside of the placement port 12 a sealed state.

[0030] Second, while manually sliding the locking block 11 away from the first locking slot 7, the gear ring 4 is rotated to drive the gear 23 to rotate, which in turn drives the threaded cylinder 24 to drive the screw 25 to push the partition 19 upward, and at the same time drives the mixture to move towards the first channel opening 17. When the partition 19 moves upward, since the pressure inside the inner cavity 14 has nowhere to be released, the pressure will move towards the inside of the first channel opening 17, and at the same time apply pressure to the pressure sensitive membrane 18. When the pressure reaches the limit, the pressure sensitive membrane 18 ruptures, and the mixture will flow through the first channel opening 17 to the inside of the placement port 12 to come into contact with and mix with the feces. Since the mixing process requires a certain amount of time to react;

[0031] Third, when the toothed ring 4 rotates, it can be limited by locking the second slot 6 through the locking block 11. After the reaction of the mixture is completed, by sliding the locking block 11 again, and then rotating the toothed ring 4 to lock it into the third slot 5, the corresponding partition 19 moves downward. Using negative pressure, the mixture re-enters the inner cavity 14 through the first channel 17, and then contacts the detection card 22 through the second channel 20 for detection. The process can be quickly detected without the need for multiple items, and it is also convenient for users to carry and use.

[0032] This invention provides an improved sampling structure for Helicobacter pylori detection. When in use, the sampler 1 is picked up while the finger is placed on the pressing lever 16. After opening the cover 3, the sampler is aligned with the stool sample. The pressing lever 16 is then pressed, causing the sampling rod 2 to extend from the placement port 12 and insert into the stool. Releasing the pressing lever 16 causes the return spring 15 to spring back, carrying the stool sample back to the inside of the placement port 12. The cover 3 is then closed and tightened. The sliding block 11 is then slid, and the toothed ring 4 is rotated, causing the partition 19 to move upwards, increasing the pressure inside the inner cavity 14. The pressure-sensitive membrane 18 ruptures, and the mixture flows through the first channel 17 to the inside of the placement port 12, mixing with the stool. After this, the sliding block 11 is slid again, and the toothed ring 4 is rotated, causing the partition 19 to move downwards, allowing the mixture to return to the inner cavity 14 and contact the detection card 22 through the second channel 20 for testing. This method allows for rapid testing without the need for multiple steps or items, and is also convenient for users to carry and use.

[0033] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sampling structure for detecting Helicobacter pylori, comprising a sampler (1), a sampling rod (2) installed at the center of the rear end face of the sampler (1), a cover (3) threadedly connected to the rear end face of the sampler (1), a toothed ring (4) rotatably connected to the outer side of the sampler (1), a third slot (5) opened on the outer side of the front end of the toothed ring (4), a second slot (6) opened on the opposite side of the third slot (5) on the outer side of the front end of the toothed ring (4), a first slot (7) opened between the third slot (5) and the second slot (6) on the outer side of the front end of the toothed ring (4), and a fixing plate (8) fixedly connected to the outer side of the sampler (1); Its features are, A groove (9) is formed on the upper surface of the fixed plate (8). A first spring (10) is fixedly connected to the inner wall of the groove (9). A locking block (11) is slidably connected to the inner side of the groove (9). The end of the first spring (10) away from the inner wall of the groove (9) is fixedly connected to the locking block (11). The locking block (11) is inserted into the inner side of the first locking slot (7). A placement opening (12) is provided at the center of the rear end face of the sampler (1). The bottom end of the placement opening (12) is located on the inner side. A connecting rod (13) is inserted and slidably connected to the center of the sampler, and the upper end face of the connecting rod (13) is fixedly connected to the sampling rod (2). The sampler (1) on the left and right sides of the placement port (12) is provided with an inner cavity (14), and a mixed liquid is injected into the inner side of the inner cavity (14). A reset spring (15) is provided inside the sampler (1). A pressing rod (16) is inserted and slidably connected to the lower end face of the sampler (1), and the reset spring (15) and the pressing rod (16) are fixedly connected to each other.

2. The sampling structure for Helicobacter pylori detection according to claim 1, characterized in that, A first channel opening (17) is provided between the upper half of the inner cavity (14) and the placement port (12). A pressure-sensitive membrane (18) is fixedly connected to the inner side of the first channel opening (17). The pressure-sensitive membrane (18) separates the inner cavity (14) from the placement port (12). A partition (19) is slidably connected to the inner side of the inner cavity (14). A second channel opening (20) is provided on the inner wall of the lower half of the inner cavity (14), and the partition (19) is located between the first channel opening (17) and the second channel opening (20).

3. The sampling structure for Helicobacter pylori detection according to claim 2, characterized in that, The sampler (1) has an observation window (21) on its outer side. A detection card (22) is fixedly connected to the inner side of the second channel (20). A gear (23) is rotatably connected to the inner side of the sampler (1), and the gear (23) meshes with the gear ring (4). A threaded cylinder (24) is fixedly connected to the upper end face of the gear (23). A screw (25) is inserted into the upper end face of the threaded cylinder (24) and is fixedly connected to the upper end face of the screw (25) and the partition plate (19). A reserved opening (26) is opened on the left and right sides of the bottom end face of the inner side of the placement port (12). A second spring (27) is fixedly connected to the bottom end face of the inner side of the reserved opening (26). A slider (28) is slidably connected to the inner side of the reserved opening (26), and the second spring (27) and the slider (28) are fixedly connected to each other.

4. The sampling structure for detecting Helicobacter pylori according to claim 3, characterized in that, The locking block (11) can be slidably locked into the first locking slot (7), the second locking slot (6) or the third locking slot (5) on the toothed ring (4) by the elastic force of the first spring (10) to achieve multi-position fixing of the toothed ring (4).

5. The sampling structure for detecting Helicobacter pylori according to claim 4, characterized in that, The partition (19) can slide within the inner cavity (14) to control the mixture to flow out from the upper and lower half of the inner cavity (14) through the first channel port (17) and the second channel port (20) to achieve mixing and detection.

6. The sampling structure for detecting Helicobacter pylori according to claim 5, characterized in that, The rotation of the gear (23) is converted into the linear movement of the partition (19) through the threaded cylinder (24) and the screw (25), which is used to adjust the position of the partition (19) in the inner cavity (14).

7. The sampling structure for detecting Helicobacter pylori according to claim 6, characterized in that, The slider (28) inside the reserved opening (26) can slide under the action of the second spring (27) to control the air pressure balance inside the placement opening (12).

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