Sample collector for collecting saliva

Abstract

The utility model provides a sample collector for collecting saliva, which relates to sample sampling equipment and comprises a collecting tube and a first tube cover connected with the collecting tube. The top wall of the collecting pipe is attached to the first pipe cover, and a first sealing face is formed by the attaching face of the collecting pipe and the first pipe cover. The first pipe cover is used for sealing the collecting pipe; a baffle is arranged in the middle of the collecting pipe and divides the collecting pipe into an upper-layer pipe and a lower-layer pipe; a plurality of through holes are formed in the baffle, and the upper-layer pipe and the lower-layer pipe are communicated through the through holes; the through holes are used as channels for mucus and particles in the upper-layer pipe to enter the lower-layer pipe during centrifugation; the baffle is used for preventing mucus and particles in the lower-layer pipe from entering the upper-layer pipe. In the centrifugal process, mucus and particles in the upper-layer pipe enter the lower-layer pipe through the through holes, and the baffle prevents the mucus and particles in the lower-layer pipe from entering the upper-layer pipe. In the subsequent liquid suction process, the suction head sucks liquid in the upper-layer pipe, and the risk that the suction head is blocked is reduced.

Description

Technical Field

[0001] The utility model relates to a sample sampling device, in particular to a sample collector for collecting saliva. Background Art

[0002] Saliva contains mucus and particles, with the proportion of mucus far exceeding that of particles. Mucus and particles usually exist in suspended form in the sample. When processing samples in a laboratory environment, samples are aspirated using a pipette. During the aspiration process, mucus is sucked into the pipette tip and accumulates in the narrow channel of the pipette tip, causing the pipette tip to become clogged. Utility Model Content

[0003] The utility model aims to provide a sample collector for collecting saliva, and aims to solve the technical problem that the mucus in the saliva blocks the suction head during suction.

[0004] The utility model is realized by the following technical solutions:

[0005] A sample collector for collecting saliva, comprising a collection tube and a first tube cover, wherein the first tube cover is connected to the collection tube;

[0006] The top wall of the collecting tube is fitted with the first tube cover, and the fitting surfaces of the collecting tube and the first tube cover form a first sealing surface; the first tube cover is used to seal the collecting tube;

[0007] A baffle is provided in the middle of the collecting tube, which divides the collecting tube into an upper tube and a lower tube;

[0008] The baffle is provided with a plurality of through holes in a row, and the upper tube and the lower tube are connected through the through holes;

[0009] The through hole is used as a passage for mucus and particles in the upper tube to enter the lower tube during centrifugation;

[0010] The baffle is used to prevent mucus and particles in the lower tube from entering the upper tube.

[0011] The baffle is used to separate the collecting tube into an upper tube and a lower tube, and the collecting tube is sealed by the first tube cover to prevent the liquid in the collecting tube from being thrown out during centrifugation; the double-layer structure design allows mucus and particulate matter in the upper tube to enter the lower tube through the through hole during centrifugation, while the baffle effectively blocks the mucus and particulate matter in the lower tube from entering the upper tube; in the subsequent liquid aspiration process, the pipette tip aspirates the liquid in the upper tube containing less mucus and particulate matter, thereby greatly reducing the risk of pipette tip clogging.

[0012] Furthermore, it also includes a guide tube, the guide tube includes a first catheter and a second catheter, and the first catheter and the second catheter are connected;

[0013] The first conduit is connected to the collecting tube;

[0014] Approaching the first conduit, the inner wall surface of the second conduit gradually inclines toward the central axis.

[0015] The sample is guided into the collection tube through the guide tube; the guide tube is composed of a first conduit and a second conduit, and the two can be cast into a whole through a cavity; the first conduit is connected to the collection tube to ensure that the saliva sample can smoothly pass through the guide tube from the patient's mouth into the collection tube; the inclined inner wall surface of the second conduit can more effectively guide the saliva from the patient's mouth into the collection tube, ensuring that more samples are collected, thereby improving the sample collection efficiency.

[0016] Furthermore, the second conduit extends into the first conduit;

[0017] The portion of the second conduit extending into the first conduit forms a protrusion.

[0018] The second conduit is allowed to partially extend into the first conduit, thereby ensuring the smoothness of the saliva sample during transmission and reducing the risk of sample leakage or contamination due to loose connection.

[0019] Furthermore, a groove is provided at the bottom of the protrusion, and the groove is used to accommodate the side plate at the top end of the collecting tube.

[0020] The above-mentioned protrusion is intended to enhance the connection stability and guidance between the catheters, ensuring that the saliva sample can flow smoothly from the second catheter into the collecting tube; a groove is provided at the bottom of the protrusion to accommodate the side plate at the top of the collecting tube, which not only enhances the structural stability of the entire collector, but also solves the problem of saliva samples flowing out of the connection gap between the first catheter and the collecting tube; the cooperation between the groove and the side plate can form an additional sealing barrier, effectively preventing leakage of saliva samples during the collection and transmission process.

[0021] Furthermore, it also includes a second tube cover;

[0022] The guide tube further comprises a third conduit, and two ends of the third conduit are respectively connected to the second conduit and the second tube cover;

[0023] The end wall of the third conduit away from the second conduit is fitted with the second tube cover, and the fitting surfaces of the third conduit and the second tube cover form a second sealing surface; the second tube cover is used to seal the chamber after the collection tube and the guide tube are connected.

[0024] The second tube cover is introduced to seal the chamber after the collection tube and the guide tube are connected, ensuring that the saliva sample will not leak or be contaminated during collection, storage and transportation; considering the sealing and connection stability between the guide tube and the second tube cover, a third catheter is provided, and the third catheter is a straight tube, which not only achieves the problem of convenient disassembly and assembly, but also achieves sealing; the third catheter, as a part of the guide tube, connects the second catheter and the second tube cover, making the entire guide tube more complete.

[0025] Furthermore, the collection tube is filled with a preservation solution.

[0026] The above-mentioned preservative solution can effectively prevent the sample from deteriorating, being contaminated or growing microorganisms during collection, storage and transportation, thereby ensuring the quality and stability of the sample; when the saliva sample enters the collection tube, it will be mixed with the preservative solution in the tube. This mixing process helps to ensure that the cells, proteins, nucleic acids and other biological molecules in the sample are in full contact with the components in the preservative solution, thereby providing better protection; the mixed sample can be more easily subjected to subsequent laboratory testing and analysis because the presence of the preservative solution has provided a stable environment for the sample.

[0027] Furthermore, the inner wall surface of the collecting tube is provided with a boss;

[0028] The baffle plate abuts against the boss.

[0029] The boss serves as a supporting structure for the baffle, and the abutment between the baffle and the boss can ensure that the baffle will not be displaced or tilted during the centrifugation process, thereby maintaining the unobstructed flow of the through hole and the normal realization of the function.

[0030] Furthermore, a pressure ring is provided on the edge of the baffle, and the outer wall of the pressure ring is in contact with the inner wall of the collecting tube.

[0031] A pressure ring is set on the edge of the above-mentioned baffle, and the shape and size of the pressure ring may match the inner diameter of the collection tube to ensure that it can fit tightly on the inner wall of the collection tube; the tightness of the connection between the baffle and the inner wall of the collection tube is enhanced to prevent the baffle from tilting or shifting during the centrifugation process, affecting the filtering effect.

[0032] Furthermore, the collecting tube is provided with external threads, and the first tube cover and the first conduit are provided with internal threads;

[0033] The external threads on the collecting tube are used to match the internal threads of the first tube cover and the first conduit.

[0034] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0035] The baffle is used to separate the collecting tube into an upper tube and a lower tube, and the collecting tube is sealed by the first tube cover to prevent the liquid in the collecting tube from being thrown out during centrifugation; the double-layer structure design allows mucus and particulate matter in the upper tube to enter the lower tube through the through hole during centrifugation, while the baffle effectively blocks the mucus and particulate matter in the lower tube from entering the upper tube; in the subsequent liquid aspiration process, the pipette tip aspirates the liquid in the upper tube containing less mucus and particulate matter, thereby greatly reducing the risk of pipette tip clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0037] Figure 1 is a cross-sectional view of a sample collector;

[0038] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0039] Figure 3 for Figure 1 A partial enlarged view of B in the middle;

[0040] Figure 4 This is a disassembly diagram of the sample collector;

[0041] Figure 5 This is a schematic diagram of how to use the sample collector.

[0042] Marks and corresponding parts names in the attached drawings:

[0043] 1. Collecting tube; 11. Boss; 12. Upper tube; 13. Lower tube; 2. Baffle; 21. Pressure ring; 22. Through hole; 3. Guide tube; 31. First conduit; 32. Second conduit; 33. Third conduit; 34. Groove; 4. First tube cover; 5. Second tube cover. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0045] Example 1

[0046] Combination Figure 1 and Figure 5 , this embodiment 1 provides a sample collector for collecting saliva, comprising a collection tube 1 and a first tube cover 4, wherein the first tube cover 4 is connected to the collection tube 1;

[0047] The top wall of the collecting tube 1 is fitted with the first tube cover 4, and the fitting surfaces of the collecting tube 1 and the first tube cover 4 form a first sealing surface; the first tube cover 4 is used to seal the collecting tube 1;

[0048] A baffle plate 2 is provided in the middle of the collecting tube 1, and the baffle plate 2 separates the collecting tube 1 into an upper tube 12 and a lower tube 13;

[0049] The baffle plate 2 is provided with a plurality of through holes 22 in the upper row, and the upper tube 12 and the lower tube 13 are connected through the through holes 22;

[0050] The through hole 22 is used as a passage for mucus and particles in the upper tube 12 to enter the lower tube 13 during centrifugation;

[0051] The baffle 2 is used to prevent mucus and particles in the lower tube 13 from entering the upper tube 12 .

[0052] The baffle plate 2 is used to separate the collecting tube 1 into an upper tube 12 and a lower tube 13, and the collecting tube 1 is sealed by the first tube cover 4 to prevent the liquid in the collecting tube 1 from being thrown out during centrifugation; the double-layer structure design allows the mucus and particulate matter in the upper tube 12 to enter the lower tube 13 through the through hole 22 during the centrifugation process, while the baffle plate 2 effectively blocks the mucus and particulate matter in the lower tube 13 from entering the upper tube 12; in the subsequent liquid aspiration process, the pipette tip aspirates the liquid in the upper tube 12 containing less mucus and particulate matter, thereby greatly reducing the risk of pipette tip clogging.

[0053] Example 2

[0054] Based on Example 1, Figure 1 and Figure 4 , further comprising a guide tube 3, the guide tube 3 comprising a first catheter 31 and a second catheter 32, the first catheter 31 and the second catheter 32 being connected;

[0055] The first conduit 31 is connected to the collecting pipe 1 through threads, and the first conduit 31 is sleeved outside the collecting pipe 1;

[0056] Approaching the first conduit 31 , the inner wall surface of the second conduit 32 gradually inclines toward the central axis.

[0057] The sample is guided into the collection tube 1 through the guide tube 3; the guide tube 3 is composed of a first conduit 31 and a second conduit 32, which can be cast into a whole through a cavity, or connected by threads, plugs or other fastening methods; the first conduit 31 is connected to the collection tube 1 to ensure that the saliva sample can smoothly pass through the guide tube 3 from the patient's mouth into the collection tube 1; the inclined inner wall surface of the second conduit 32 can more effectively guide the saliva from the patient's mouth into the collection tube 1, ensuring that more samples are collected, thereby improving the sample collection efficiency.

[0058] When approaching the first conduit 31 , the inclination angle slope of the inner wall surface of the second conduit 32 may be constant, or may increase first and then decrease.

[0059] Example 3

[0060] Based on Example 2, Figure 3 , the second conduit 32 extends into the first conduit 31;

[0061] The portion of the second conduit 32 extending into the first conduit 31 is defined as a protrusion.

[0062] The second conduit 32 is allowed to partially extend into the first conduit 31 to ensure the smoothness of the saliva sample during transmission and reduce the risk of sample leakage or contamination due to loose connection.

[0063] The protrusion has a specific shape and is used to guide the saliva sample from the second conduit 32 into the collecting tube 1 , thereby reducing the retention and loss of the saliva sample at the connection between the second conduit 32 and the first conduit 31 .

[0064] In a specific embodiment, a groove 34 is formed at the bottom of the protrusion, and the groove 34 is used to accommodate the side plate at the top end of the collecting tube 1.

[0065] The above-mentioned protrusion is to enhance the connection stability and guidance between the tubes, ensuring that the saliva sample can flow smoothly from the second tube 32 into the collecting tube 1; a groove 34 is provided at the bottom of the protrusion to accommodate the side plate at the top of the collecting tube 1, which not only enhances the structural stability of the entire collector, but also solves the problem of the saliva sample flowing out from the connection gap between the first tube 31 and the collecting tube 1; the cooperation between the groove 34 and the side plate can form an additional sealing barrier, effectively preventing the leakage of the saliva sample during the collection and transmission process.

[0066] Example 4

[0067] Based on Example 2, Figure 1 , Figure 4 and Figure 5 , further comprising a second tube cover 5;

[0068] The guide tube 3 further includes a third conduit 33, the two ends of which are respectively connected to the second conduit 32 and the second tube cover 5. The first conduit 31, the second conduit 32 and the third conduit 33 can be cast into a whole through a mold cavity to obtain the guide tube 3; the second tube cover 5 and the third conduit 33 are connected by threads;

[0069] The end wall of the third conduit 33 away from the second conduit 32 is in contact with the second tube cover 5, and the contact surface between the third conduit 33 and the second tube cover 5 forms a second sealing surface; the second tube cover 5 is used to seal the chamber after the collection tube 1 and the guide tube 3 are connected.

[0070] The second tube cover 5 is introduced to seal the chamber after the collection tube 1 and the guide tube 3 are connected, ensuring that the saliva sample will not leak or be contaminated during collection, storage and transportation; considering the sealing and connection stability between the guide tube 3 and the second tube cover 5, a third conduit 33 is provided, and the third conduit 33 is a straight tube, which not only achieves the convenience of disassembly and assembly, but also achieves sealing; the third conduit 33, as a part of the guide tube 3, connects the second conduit 32 and the second tube cover 5, making the entire guide tube 3 more complete.

[0071] The second sealing surface prevents the mixed solution from leaking from the connection gap between the guide tube 3 and the second tube cover 5 when the saliva sample and the preservation solution are mixed to obtain the mixed solution.

[0072] In a specific embodiment, the collection tube 1 is filled with a preservation solution.

[0073] The above-mentioned preservation solution can effectively prevent the sample from deteriorating, being contaminated or growing microorganisms during the collection, storage and transportation process, thereby ensuring the quality and stability of the sample; when the saliva sample enters the collection tube 1, it will be mixed with the preservation solution in the tube. This mixing process helps to ensure that the cells, proteins, nucleic acids and other biological molecules in the sample are in full contact with the components in the preservation solution, thereby playing a better protective role; the mixed sample can be more easily subjected to subsequent laboratory testing and analysis, because the presence of the preservation solution has provided a stable environment for the sample.

[0074] For users, the sample collector filled with preservative fluid is more convenient and reliable to use. There is no need to worry about how to store and transport the saliva samples after collection, because the preservative fluid has provided a stable environment for the samples. In addition, the collector filled with preservative fluid can also reduce the user's incorrect operations during use, thereby improving the success rate and quality of sample collection.

[0075] Example 5

[0076] Based on Example 1, Figure 2 The inner wall surface of the collecting tube 1 is provided with a boss 11;

[0077] The baffle plate 2 abuts against the boss 11 .

[0078] The boss 11 serves as a supporting structure for the baffle 2 . The abutment between the baffle 2 and the boss 11 can ensure that the baffle 2 will not be displaced or tilted during the centrifugation process, thereby maintaining the unobstructed flow of the through hole 22 and achieving normal functions.

[0079] Specific embodiments, combined with Figure 2 A pressure ring 21 is provided on the edge of the baffle 2 , and the outer wall of the pressure ring 21 is in contact with the inner wall of the collecting pipe 1 .

[0080] A pressure ring 21 is provided on the edge of the baffle plate 2. The shape and size of the pressure ring 21 may match the inner diameter of the collecting tube 1 to ensure that it can fit tightly on the inner wall of the collecting tube 1. The tightness of the connection between the baffle plate 2 and the inner wall of the collecting tube 1 is enhanced to prevent the baffle plate 2 from tilting or shifting during the centrifugation process, thereby affecting the filtering effect.

[0081] The tightness of the fit may be achieved by selecting the material of the pressure ring 21 , and elastic materials such as rubber or silicone may be used to enhance the fit.

[0082] In a specific embodiment, the collecting tube 1 is provided with external threads, and the first tube cover 4 and the first conduit 31 are provided with internal threads;

[0083] The external threads on the collecting tube 1 are used to fit the internal threads of the first tube cover 4 and the first conduit 31 .

[0084] The internal threads of the first pipe cover 4 and the first conduit 31 are adapted to the external threads on the collecting pipe 1, thereby reducing the design of a connecting component and lowering the difficulty of processing.

[0085] The specific usage of the sample collector is combined with Figure 5 :

[0086] (1) The structure of the sample collector before collection: the end of the first conduit 31 of the guide tube 3 is connected to the outside of the upper tube 12 of the collection tube 1, the end of the second conduit 32 of the guide tube 3 is connected to the second tube cover 5, the baffle 2 is arranged in the collection tube 1, and the collection tube 1 is filled with a preservation solution, and the preservation solution immerses the baffle 2;

[0087] (2) removing the second tube cover 5 and adding the saliva sample into the collection tube 1;

[0088] (3) Cover the second tube cover 5 and tighten it, shake it to mix the saliva sample and the preservation solution, and wait for the mixed solution to be fully liquefied;

[0089] (4) Remove the guide tube 3, cover it with the first tube cover 4 and tighten it, and put the tightened collection tube 1 into the centrifuge for centrifugal treatment. Through centrifugation, the mucus and particulate matter in the mixed liquid pass through the through hole 22 on the baffle 2 and enter the lower tube 13;

[0090] (5) Remove the first tube cover 4, insert the pipette tip into the upper tube 12, and aspirate the mixed solution.

[0091] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A sample collector for collecting saliva, characterized in that: It comprises a collecting tube (1) and a first tube cover (4), wherein the first tube cover (4) is connected to the collecting tube (1); The top wall of the collecting tube (1) is fitted with the first tube cover (4), and the fitting surfaces of the collecting tube (1) and the first tube cover (4) form a first sealing surface; the first tube cover (4) is used to seal the collecting tube (1); A baffle (2) is provided in the middle of the collecting tube (1), and the baffle (2) divides the collecting tube (1) into an upper tube (12) and a lower tube (13); The baffle (2) is provided with a plurality of through holes (22) in the upper row, and the upper tube (12) and the lower tube (13) are connected through the through holes (22); The through hole (22) is used as a passage for mucus and particles in the upper tube (12) to enter the lower tube (13) during centrifugation; The baffle (2) is used to prevent mucus and particles in the lower tube (13) from entering the upper tube (12).

2. A sample collector for collecting saliva according to claim 1, characterized in that: It also includes a guide tube (3), wherein the guide tube (3) includes a first catheter (31) and a second catheter (32), and the first catheter (31) and the second catheter (32) are connected; The first conduit (31) is connected to the collecting tube (1); Approaching the first conduit (31), the inner wall surface of the second conduit (32) gradually inclines toward the central axis.

3. A sample collector for collecting saliva according to claim 2, characterized in that: The second conduit (32) extends into the first conduit (31); The portion of the second conduit (32) extending into the first conduit (31) forms a protrusion.

4. A sample collector for collecting saliva according to claim 3, characterized in that: A groove (34) is provided at the bottom of the protrusion, and the groove (34) is used to accommodate the side plate at the top end of the collecting tube (1).

5. A sample collector for collecting saliva according to claim 2, characterized in that: Also includes a second tube cover (5); The guide tube (3) further comprises a third conduit (33), and two ends of the third conduit (33) are respectively connected to the second conduit (32) and the second tube cover (5); The end wall of the third conduit (33) away from the second conduit (32) is in contact with the second tube cover (5), and the contact surface between the third conduit (33) and the second tube cover (5) forms a second sealing surface; the second tube cover (5) is used to seal the chamber after the collection tube (1) and the guide tube (3) are connected.

6. A sample collector for collecting saliva according to claim 5, characterized in that: The collection tube (1) is filled with a preservation solution.

7. A sample collector for collecting saliva according to claim 1, characterized in that: The inner wall surface of the collecting pipe (1) is provided with a boss (11); The baffle (2) abuts against the boss (11).

8. The sample collector for collecting saliva according to claim 1, characterized in that: A pressure ring (21) is provided on the edge of the baffle (2), and the outer wall of the pressure ring (21) is in contact with the inner wall of the collection pipe (1).

9. The sample collector for collecting saliva according to claim 2, characterized in that: The collecting tube (1) is provided with an external thread, and the first tube cover (4) and the first conduit (31) are provided with an internal thread; The external threads on the collecting tube (1) are used to fit the internal threads of the first tube cover (4) and the first conduit (31).

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