A saliva sampling device

Abstract

The utility model relates to saliva sampling technical field especially, it relates to a saliva sampling device, including the feed hopper, the filling flow guide block and the connecting rod, the inside of feed hopper is provided with the filling flow guide block, and the left and right sides of filling flow guide block are fixedly connected with the connecting rod, and the one end away from filling flow guide block of connecting rod is fixedly connected with feed hopper, and the top of feed hopper is movably connected with the closure, and the right side of closure is fixedly connected with the connecting rope, and the one end away from closure of connecting rope is fixedly connected with feed hopper, and the top of closure is fixedly connected with rubber roof, and the bottom of rubber roof is provided with the drainage hole, the utility model discloses by shaking feed hopper makes alcohol along the gap between filling flow guide block outside and feed hopper inside and flows from downward, alcohol completely covers the outside of filling flow guide block and the inside of feed hopper at this moment, and the saliva adhering and staying in the inner wall of feed hopper and the outer wall of cover filling flow guide block are washed down by alcohol, realize the goal that saliva is completely transferred to sampling test tube.

Description

Technical Field

[0001] This utility model relates to the field of saliva sampling technology, and in particular to a saliva sampling device. Background Technology

[0002] Saliva is a complex mixture containing not only various proteins, but also DNA, RNA, fatty acids, and various microorganisms. Studies have found that various protein components in the blood are also present in saliva. Saliva can reflect changes in the levels of various proteins in the blood. Therefore, it may be possible to diagnose diseases through saliva testing.

[0003] Common saliva sampling devices only include the function of sampling, which can collect saliva samples, but lack a structure to assist in the complete transfer of samples. As saliva is introduced into the test tube through the hopper, due to the viscous nature of saliva itself, some liquid adheres to and remains on the inner wall surface of the hopper during the transfer process. This residue phenomenon will cause the final sample volume entering the test tube to not reach the expected collection standard, affecting the reliability of the test.

[0004] Therefore, to address the problem that the lack of a structure to completely transfer auxiliary samples leads to saliva adhering and remaining on the inner wall surface of the hopper, resulting in the sample volume failing to reach the expected collection standard and affecting the test results, a saliva sampling device can be designed. Utility Model Content

[0005] To overcome the problem of insufficient auxiliary sample transfer structure, which causes saliva to adhere and remain on the inner wall surface of the hopper, resulting in the sample volume failing to reach the expected collection standard and affecting the test results.

[0006] The technical solution of this utility model is as follows: a saliva sampling device, comprising a feeding hopper, a filling guide block, and connecting rods. The feeding hopper is provided with a filling guide block, and connecting rods are fixedly connected to the left and right sides of the filling guide block. The end of the connecting rod away from the filling guide block is fixedly connected to the feeding hopper. A sealing cap is movably connected to the top of the feeding hopper. A connecting rope is fixedly connected to the right side of the sealing cap, and the end of the connecting rope away from the sealing cap is fixedly connected to the feeding hopper. A rubber top plate is fixedly connected to the top of the sealing cap, and a drain hole is opened at the bottom of the rubber top plate. A receiving mechanism is provided on the feeding hopper for storing saliva. A liquid adding mechanism is provided on the sealing cap for adding alcohol to the saliva.

[0007] Preferably, by opening the drain hole, the alcohol inside the sealing cap flows downward. When the alcohol flows to the top of the filling guide block, the feeding hopper is then shaken to make the alcohol flow downward continuously along the gap formed between the outer side of the filling guide block and the inner side of the feeding hopper. This allows the alcohol to fully cover the outer surface of the filling guide block and the inner surface of the feeding hopper. The alcohol washes away the residual saliva adhering to the inner wall of the feeding hopper and the outer wall of the filling guide block, ultimately achieving the effect of transferring all the retained saliva into the sampling test tube.

[0008] Preferably, the receiving mechanism includes a connecting component and a storage component, the connecting component being used to connect to the conveying hopper, and the storage component being used to store the saliva.

[0009] Preferably, the connecting assembly includes a threaded connector and a limiting ring; the bottom of the hopper is threadedly connected to the threaded connector, and the outer side of the threaded connector is fixedly connected to the limiting ring.

[0010] Preferably, the storage assembly includes a sampling tube and a graduated strip, with the sampling tube fixedly connected to the bottom of the threaded connector, and a graduated strip provided on the outside of the sampling tube.

[0011] Preferably, the liquid adding mechanism includes a liquid storage component and a liquid dispensing component, wherein the liquid storage component is used to store alcohol and the liquid dispensing component is used to release the stored alcohol.

[0012] Preferably, the liquid storage assembly includes a liquid filling pipe and a rubber sealing strip. The liquid filling pipe is fixedly connected to the top of the rubber top plate, and the rubber sealing strip is fixedly connected to the bottom of the sealing cap. The rubber sealing strip is embedded inside the drain hole.

[0013] Preferably, the liquid discharge assembly includes a push rod, and the push rod is fixedly connected to the bottom of the rubber top plate.

[0014] The beneficial effects of this utility model are:

[0015] This structure, through the coordinated design of the drainage hole and the filling guide block, allows alcohol to form a uniform liquid film from top to bottom under gravity, covering the inner wall of the conveying hopper and the outer surface of the guide block. The precisely controlled gap between the two achieves an optimized match between the liquid flow rate and the contact area, effectively improving the flushing efficiency of residual saliva and ensuring that biological sample residues on the inner wall of the conveying channel and the surface of the guide structure are completely removed. Through the combined action of gravity flow and capillary siphon, the mixed liquid after flushing is directionally collected into the sampling tube, which avoids the risk of cross-contamination and ensures the integrity and recovery rate of sample transfer. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model.

[0017] Figure 2The diagram shown is a schematic representation of the sampling tube structure of this utility model.

[0018] Figure 3 The diagram shown is an exploded view of the material conveying hopper of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the sealing cap structure of this utility model;

[0020] Figure 5 The diagram shown is a cross-sectional view of the sealing cap of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Feed hopper; 11. Filling guide block; 12. Connecting rod; 13. Sealing cap; 14. Connecting rope; 15. Rubber top plate; 16. Drain hole; 211. Threaded connector; 212. Limiting ring; 221. Sampling tube; 222. Graduated strip; 311. Liquid filling pipe; 312. Rubber sealing strip; 321. Push rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a saliva sampling device, including a feeding hopper 1, a filling guide block 11, and connecting rods 12. The feeding hopper 1 has a filling guide block 11 inside. Connecting rods 12 are fixedly connected to the left and right sides of the filling guide block 11. One end of the connecting rod 12 away from the filling guide block 11 is fixedly connected to the feeding hopper 1. A sealing cap 13 is movably connected to the top of the feeding hopper 1. A connecting rope 14 is fixedly connected to the right side of the sealing cap 13. One end of the connecting rope 14 away from the sealing cap 13 is fixedly connected to the feeding hopper 1. A rubber top plate 15 is fixedly connected to the top of the sealing cap 13. A drainage hole 16 is provided at the bottom of the rubber top plate 15. The feeding hopper 1 is provided with… The receiving mechanism is used to store saliva. The sealing cap 13 is equipped with a liquid adding mechanism to add alcohol to the saliva. The alcohol in the sealing cap 13 flows downward through the open drain hole 16. After the alcohol flows to the top of the filling guide block 11, the feeding hopper 1 is shaken. The alcohol will flow downward along the gap between the outer side of the filling guide block 11 and the inner side of the feeding hopper 1, so that the alcohol completely covers the outer side of the filling guide block 11 and the inner side of the feeding hopper 1. The alcohol washes away the saliva attached to the inner wall of the feeding hopper 1 and the outer wall of the filling guide block 11, thereby achieving the goal of completely transferring the saliva into the sampling tube 221.

[0024] Please see Figures 2-5In this embodiment, the receiving mechanism includes a connecting component and a storage component. The connecting component is used to connect to the feeding hopper 1, and the storage component is used to store saliva. The connecting component and the storage component together form a complete receiving mechanism, which cooperate to store saliva. The connecting component includes a threaded connector 211 and a limiting ring 212. The bottom of the feeding hopper 1 is threadedly connected to the threaded connector 211, and the limiting ring 212 is fixedly connected to the outer side of the threaded connector 211. The sampling tube 221 passes through... The threaded connector 211 is fixed to the hopper 1 as a whole, so that the saliva in the hopper 1 can flow into the sampling tube 221 through the threaded connector 211. The storage component includes the sampling tube 221 and the scale strip 222. The bottom of the threaded connector 211 is fixedly connected to the sampling tube 221. The scale strip 222 is provided on the outside of the sampling tube 221. The saliva stored inside can be observed through the transparent sampling tube 221, and the amount of saliva can be compared through the scale strip 222.

[0025] Please see Figures 1-5 In this embodiment, the liquid adding mechanism includes a liquid storage component and a liquid dispensing component. The liquid storage component is used to store alcohol, and the liquid dispensing component is used to release the stored alcohol. The liquid storage component and the liquid dispensing component are combined to form a complete liquid adding mechanism. The two cooperate with each other to add alcohol to saliva. The liquid storage component includes a liquid adding tube 311 and a rubber sealing strip 312. The liquid adding tube 311 is fixedly connected to the top of the rubber top plate 15, and the rubber sealing strip 312 is fixedly connected to the bottom of the sealing cap 13. The rubber sealing strip 312 is embedded inside the drain hole 16. An appropriate amount of alcohol is added into the sealing cap 13 through the liquid adding tube 311. The alcohol is stored inside the sealing cap 13 because the rubber sealing strip 312 is embedded inside the drain hole 16. After the saliva sample is collected, the sealing cap 13 is placed on top of the feed hopper 1. The discharge assembly includes a push rod 321. The bottom of the rubber top plate 15 is fixedly connected to the push rod 321. After the sealing cap 13 is placed on top of the feed hopper 1, the rubber top plate 15 is pressed down, thereby pushing the push rod 321 downward until the push rod 321 pushes the rubber sealing strip 312 completely outside the drain hole 16. At this time, the alcohol flows out downward due to gravity.

[0026] During the process, firstly, an appropriate amount of alcohol is injected into the sealing cap 13 through the liquid filling tube 311. At this time, because the rubber sealing strip 312 is embedded inside the drain hole 16, the alcohol is stored inside the sealing cap 13. Then, the sealing cap 13 is opened, and the operator presses their mouth tightly against the feed hopper 1 and spits saliva into it. The saliva flows continuously downwards along the gap formed between the outer side of the filling guide block 11 and the inner side of the feed hopper 1, and flows into the sampling tube 221 through the threaded connector 211. After the saliva sampling process is completed, the sealing cap 13 is reinstalled on top of the feed hopper 1. At this point, alcohol needs to be added to the saliva to remove impurities, thus completing the DNA purification operation. This is done by pressing down... The rubber top plate 15 drives the push rod 321 to produce a vertical displacement until the push rod 321 completely pushes the rubber sealing strip 312 out of the drain hole 16. At this time, the alcohol begins to flow downward under the action of gravity. When the alcohol reaches the top of the filling guide block 11, the hand-held conveying hopper 1 is shaken to make the alcohol flow downward along the gap formed between the outer side of the filling guide block 11 and the inner side of the conveying hopper 1. This allows the alcohol to fully cover the outer surface of the filling guide block 11 and the inner surface of the conveying hopper 1. The alcohol washes away the residual saliva adhering to the inner wall of the conveying hopper 1 and the outer wall of the filling guide block 11. Finally, the alcohol flows into the sampling tube 221 through the threaded connector 211 and mixes thoroughly with the collected saliva.

[0027] Through the above steps, by shaking the feed hopper 1, alcohol flows downward along the gap between the outer side of the filling guide block 11 and the inner side of the feed hopper 1. At this time, the alcohol completely covers the outer side of the filling guide block 11 and the inner side of the feed hopper 1. The alcohol washes away the saliva adhering to and retained on the inner wall of the feed hopper 1 and the outer wall of the filling guide block 11, thus achieving the goal of completely transferring the saliva into the sampling tube 221. This solves the problem that common saliva sampling devices only have the function of sampling and can sample saliva, but lack a structure to assist in the complete transfer of the sample. When saliva is introduced into the test tube through the hopper, due to the viscosity of the saliva itself, some liquid adheres and remains on the inner wall surface of the hopper during the transfer process. This will cause the sample volume to not reach the expected collection standard, resulting in a decrease in detection accuracy.

Claims

1. A saliva sampling device, comprising a feeding hopper (1); characterized in that: It also includes a filling guide block (11) and a connecting rod (12). The filling guide block (11) is provided inside the feeding hopper (1). The connecting rod (12) is fixedly connected to the left and right sides of the filling guide block (11). The end of the connecting rod (12) away from the filling guide block (11) is fixedly connected to the feeding hopper (1). The top of the feeding hopper (1) is movably connected to a sealing cover (13). The right side of the sealing cover (13) is fixedly connected to a connecting rope (14). The end of the connecting rope (14) away from the sealing cover (13) is fixedly connected to the feeding hopper (1). The top of the sealing cover (13) is fixedly connected to a rubber top plate (15). The bottom of the rubber top plate (15) is provided with a drain hole (16). The feeding hopper (1) is provided with a receiving mechanism for storing saliva. The sealing cover (13) is provided with a liquid adding mechanism for adding alcohol to the saliva.

2. The saliva sampling device according to claim 1, characterized in that: The receiving mechanism includes a connecting component and a storage component. The connecting component is used to connect with the feeding hopper (1), and the storage component is used to store saliva.

3. A saliva sampling device according to claim 2, characterized in that: The connecting assembly includes a threaded connector (211) and a limiting ring (212); the bottom of the hopper (1) is threadedly connected to the threaded connector (211), and the outer side of the threaded connector (211) is fixedly connected to the limiting ring (212).

4. A saliva sampling device according to claim 3, characterized in that: The storage assembly includes a sampling tube (221) and a scale strip (222). The bottom of the threaded connector (211) is fixedly connected to the sampling tube (221), and the outer side of the sampling tube (221) is provided with a scale strip (222).

5. A saliva sampling device according to claim 4, characterized in that: The liquid filling mechanism includes a liquid storage component and a liquid dispensing component. The liquid storage component is used to store alcohol, and the liquid dispensing component is used to release the stored alcohol.

6. A saliva sampling device according to claim 5, characterized in that: The liquid storage assembly includes a liquid filling pipe (311) and a rubber sealing strip (312). The liquid filling pipe (311) is fixedly connected to the top of the rubber top plate (15), and the rubber sealing strip (312) is fixedly connected to the bottom of the sealing cap (13). The rubber sealing strip (312) is embedded inside the drain hole (16).

7. A saliva sampling device according to claim 6, characterized in that: The liquid discharge assembly includes a push rod (321), and the bottom of the rubber top plate (15) is fixedly connected to the push rod (321).

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