Sampling device for vector biological sample

Abstract

The utility model provides a vector biological sample sampling device which comprises a test tube and an end cover installed at the top of the test tube, a guide groove is formed in the top of the end cover and used for guiding installation of a clamping unit, and a limiting boss is fixed in the middle of the end cover and used for dividing the inner space of the end cover into a non-return cavity and a containing cavity. The non-return cavity communicates with the interior of the containing cavity. Through the arrangement of the end cover and the test tube, the design of integrated assembly of the clamping unit and the test tube is realized, the clamping unit can be directly taken out from the surface of the test tube for use during actual sampling, and meanwhile, the test tube can be blocked through the clamping unit after sampling is completed, so that the test tube is prevented from being lost; meanwhile, the clamping section of the clamping unit is positioned in the test tube, so that the pollution to the outside of the test tube is avoided, and the sampling operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of vector-borne organisms, and in particular to a device for taking samples of vector-borne organisms. Background Art

[0002] Vectors are organisms that can directly or indirectly spread diseases, endanger and threaten human health. Vector-borne infectious diseases are characterized by rapid spread and easy prevalence, which seriously threaten human health. With global warming, accelerated urbanization, rapid development of tourism and trade, and continuous changes in the ecological environment, new changes have taken place in the types, density and distribution of vectors. Not only have the scope of existing vector-borne infectious diseases expanded, the frequency and intensity of occurrence increased, but also some new vector-borne infectious diseases continue to emerge.

[0003] The main vectors include flies, mosquitoes, rodents, cockroaches, etc. Currently, sampling devices are usually used to collect vector samples before testing. The conventional collection method is mostly to use tweezers to grab the corresponding samples and place them in test tubes for storage to facilitate subsequent detection tests. When collecting some relatively large vectors (such as rodents), the upper part of the organ tissue will be cut after capture for separate collection.

[0004] However, in the actual sampling process of this sampling device, it was found that since the test tube and the sampling clamp were independently set, the test tube not only needs a separate sealing cover to seal the inside, but the sampling clamp also needs to be separated from the test tube to avoid contamination of the outside of the test tube. In addition, due to the separate setting, it is easy to cause the loss of a single item during actual use, resulting in cumbersome operation. Therefore, we have made improvements and proposed a vector sample sampling device. Utility Model Content

[0005] The utility model aims to provide a vector-borne organism sample sampling device, which solves the problem that the existing vector-borne organism sample sampling device is relatively complicated to operate during use.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] A vector-borne biological sample sampling device comprises a test tube and an end cap installed on the top of the test tube, the top of the end cap has a guide groove for guiding the installation of a clamping unit, and a limiting boss is fixed in the middle of the end cap for dividing its internal space into a non-return chamber and a storage chamber, the non-return chamber and the storage chamber are internally connected to each other, wherein the clamping unit comprises a shell arranged below the end cap and a sleeve connected to the top of the shell and passing through the outside of the main groove, at least two clamping jaws are arranged inside the shell, and a driving member is commonly arranged between the plurality of the clamping jaws; the clamping jaw comprises a claw body and a claw end, the end of the claw body away from the claw end is connected to a tension spring connected to the inner side of the shell, the driving member comprises a trapezoidal contact head, and the claw bodies in the plurality of the clamping jaws have a resistance tendency toward the trapezoidal contact head due to the action of the tension spring.

[0008] As a preferred technical solution of the utility model, anti-slip rubber rings are arranged at equal distances on the inner side of the non-return cavity near the limiting boss.

[0009] As a preferred technical solution of the utility model, the inner diameter of the limiting boss is larger than the outer diameter of the top of the test tube to meet the requirement of limiting and fixing the end cover on the test tube.

[0010] As a preferred technical solution of the utility model, the guide groove includes a main groove and a sub-groove; wherein a guide rod is slidably inserted in each of the sub-grooves for connecting with the clamping unit.

[0011] As a preferred technical solution of the utility model, one end of the two guide rods is commonly connected to the top of the shell, and the other end is commonly connected to the surface of the sleeve. The surface of the end cover is also threaded with a limiting bolt for limiting the sleeve.

[0012] As a preferred technical solution of the utility model, the clamping claw includes a claw body hinged to the inner wall of the shell and a claw end connected to one end of the claw body.

[0013] As a preferred technical solution of the utility model, the number of the clamping jaws is four, and the four clamping jaws are distributed in a ring shape inside the shell.

[0014] As a preferred technical solution of the utility model, the driving member also includes a driving handle slidably inserted in the sleeve, one end of the driving handle extends inside the shell and is connected to the trapezoidal abutment head.

[0015] In the scheme of the utility model: through the provision of the end cover and the test tube, the design of the integrated assembly of the clamping unit and the test tube is realized, so that the clamping unit can be directly taken out and used on the surface of the test tube during actual sampling, and at the same time, after the sampling is completed, the test tube can be sealed by the clamping unit to avoid loss. At the same time, since the clamping section of the clamping unit is located inside the test tube, contamination of the outside of the test tube is avoided, thereby facilitating the operator's sampling of vector samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the end cover structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the clamping unit of the utility model;

[0020] Figure 5 This is a schematic cross-sectional structural diagram of the clamping unit of the utility model;

[0021] Figure 6 for Figure 5 Enlarged structural diagram at A in the middle.

[0022] Indicated in the figure: 1. test tube; 2. end cap; 3. clamping unit;

[0023] 21. Guide groove; 22. Limiting boss; 23. Check cavity; 24. Storage cavity; 25. Anti-slip rubber ring; 26. Limiting bolt;

[0024] 210, main groove; 211, auxiliary groove; 212, guide rod;

[0025] 31. housing; 32. sleeve; 33. clamping claw; 34. driving member;

[0026] 331, claw body; 332, claw end; 333, tension spring; 341, trapezoidal contact head; 342, driving handle. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0028] A vector sample sampling device, such as Figure 1-Figure 6 As shown, it includes a test tube 1 and an end cover 2 installed on the top of the test tube 1, the top of the end cover 2 has a guide groove 21 for guiding the installation of the clamping unit 3, and a limiting boss 22 is fixed in the middle of the end cover 2 for dividing its internal space into a check cavity 23 and a storage cavity 24, and the check cavity 23 and the storage cavity 24 are connected to each other.

[0029] Anti-slip rubber rings 25 are arranged equidistantly at the inner side of the check cavity 23 near the position of the limiting boss 22; the inner diameter of the limiting boss 22 is larger than the outer diameter of the top of the test tube 1 to meet the limit fixation of the end cover 2 on the test tube 1; the guide groove 21 includes a main groove 210 and a secondary groove 211, wherein a guide rod 212 is slidably inserted in the secondary groove 211 for connecting with the clamping unit 3;

[0030] like Figure 3 As shown, through the design of the limiting boss 22, the end cap 2 can be limited by the limiting boss 22 when it is sleeved on the top of the test tube 1, so as to complete the installation of the end cap 2 in a fixed position state. At the same time, it cooperates with the setting of the anti-slip rubber ring 25, so that the outer wall of the test tube 1 will conflict with the anti-slip rubber ring 25 on the inner side of the end cap 2 during the sleeve process of the end cap 2, thereby further ensuring the stability of the end cap 2 after sleeve installation, so that it is not easy to fall off autonomously;

[0031] In the actual sampling process of samples of vector-borne organisms such as flies, mosquitoes, and cockroaches, the end cap 2 is removed from the surface of the test tube 1, and then the sample to be sampled is clamped by the clamping unit 3 on the end cap 2 and placed in the corresponding test tube 1 to complete the sampling, and then the end cap 2 is engaged with the test tube 1 to seal the test tube 1. At the same time, since the clamping unit 3 is installed on the end cap 2, the clamping unit 3 is also placed and stored in the test tube 1, and the clamping unit 3 is also synchronously located inside the test tube 1, which avoids contamination to the outside of the test tube 1, and facilitates the subsequent removal of the sample in the test tube 1, so that the degree of integration is high, which reduces the loss of various components during actual transportation and storage. Before collecting some relatively large vector-borne organism samples (such as rodents), the captured rodents are first dissected, and the small pieces of organ tissue after cutting are clamped by the clamping unit 3 and sampled in the test tube 1, thereby meeting the actual scope of application of the device.

[0032] The clamping unit 3 includes a shell 31 disposed below the end cover 2 and a sleeve 32 connected to the top of the shell 31 and passing through the outside of the main groove 210. At least two clamping claws 33 are disposed inside the shell 31, and a driving member 34 is disposed between the plurality of clamping claws 33. The clamping claw 33 includes a claw body 331 hinged to the inner wall of the shell 31 and a claw end 332 connected to one end of the claw body 331. One end of the claw body 331 away from the claw end 332 is connected to a tension spring 333 connected to the inner side of the shell 31.

[0033] In the natural state, it is subjected to the force of the tension spring 333, such as Figure 5As shown, the claw end 332 on the claw body 331 has a tendency to resist toward the driving member 34, so that when the driving member 34 moves downward, the driving member 34 will overcome the resistance force given by the claw end 332 and flip outward, and stretch the tension spring 333, so that the multiple claw ends 332 are spread out to accommodate the vector biological sample to be clamped, and then the force on the driving member 34 is released, and the elastic reset of the tension spring 333 makes the multiple claw ends 332 approach each other to clamp the vector biological sample.

[0034] As a further optimization of this embodiment: the number of the clamping jaws 33 is four, and the four clamping jaws 33 are distributed in a ring shape inside the housing 31. Through the arrangement of the multiple clamping jaws 33, the claw ends 332 on the multiple clamping jaws 33 can be more stable during clamping and are not prone to falling off;

[0035] The driving member 34 includes a trapezoidal contact head 341. The claw bodies 331 in the plurality of clamping claws 33 are acted upon by the tension springs 333 and have a tendency to contact the trapezoidal contact head 341.

[0036] The driving member 34 further includes a driving handle 342 slidably inserted into the sleeve 32 , one end of the driving handle 342 extends inside the housing 31 and is connected to the trapezoidal abutment head 341 ;

[0037] The finger hooks the outer end of the sleeve 32 and presses the driving handle 342 downward (the same way as the syringe is pressed for injection), so that the driving handle 342 synchronously drives the trapezoidal contact head 341 to slide in the housing 31. During the sliding process, the outer side of the trapezoidal contact head 341 will come into contact with the corresponding clamping claw 33. The clamping claw 33 subjected to the contact force will deflect outward, so that the claw ends 332 on the multiple clamping claws 33 are mutually expanded for clamping the vector sample;

[0038] One end of the two guide rods 212 is commonly connected to the top of the shell 31, and the other end is commonly connected to the surface of the sleeve 32. The surface of the end cover 2 is also threaded with a limiting bolt 26 for limiting the sleeve 32. Through the setting of the limiting bolt 26, the position of the clamping unit 3 can be adjusted during actual use of the device, so that it can be used in different situations without adjustment.

[0039] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A vector sample sampling device, characterized in that: The invention comprises a test tube (1) and an end cover (2) installed on the top of the test tube (1), wherein the top of the end cover (2) is provided with a guide groove (21) for guiding the installation of a clamping unit (3), and a limiting boss (22) is fixed in the middle of the end cover (2) for dividing the internal space thereof into a check cavity (23) and a receiving cavity (24), wherein the check cavity (23) and the receiving cavity (24) are internally connected to each other; The gripping unit (3) comprises a shell (31) disposed below the end cover (2) and a sleeve (32) connected to the top of the shell (31) and extending through the outside of the main groove (210); at least two clamping jaws (33) are disposed inside the shell (31), and a driving member (34) is disposed between the plurality of clamping jaws (33); The clamping jaw (33) comprises a jaw body (331) and a jaw end (332); one end of the jaw body (331) away from the jaw end (332) is connected to a tension spring (333) connected to the inner side of the housing (31); the driving member (34) comprises a trapezoidal contact head (341); the jaw bodies (331) in the plurality of clamping jaws (33) are acted upon by the tension spring (333) and have a tendency to contact in the direction of the trapezoidal contact head (341).

2. A vector sample sampling device according to claim 1, characterized in that: Anti-slip rubber rings (25) are arranged at equal intervals on the inner side of the non-return cavity (23) near the limiting boss (22).

3. A vector sample sampling device according to claim 1, characterized in that: The inner diameter of the limiting boss (22) is larger than the outer diameter of the top of the test tube (1), so as to meet the requirement of limiting and fixing the end cover (2) on the test tube (1).

4. A vector sample sampling device according to claim 1, characterized in that: The guide groove (21) comprises a main groove (210) and a secondary groove (211); Wherein, guide rods (212) are slidably inserted in the auxiliary grooves (211) for connecting with the clamping units (3).

5. A vector sample sampling device according to claim 4, characterized in that: One end of the two guide rods (212) is commonly connected to the top of the shell (31), and the other end is commonly connected to the surface of the sleeve (32). The surface of the end cover (2) is also threaded with a limiting bolt (26) for limiting the position of the sleeve (32).

6. The vector sample sampling device according to claim 1, characterized in that: The clamping claw (33) comprises a claw body (331) hinged to the inner wall of the shell (31) and a claw end (332) connected to one end of the claw body (331).

7. A vector sample sampling device according to claim 1 or 6, characterized in that: The number of the clamping jaws (33) is four, and the four clamping jaws (33) are distributed inside the housing (31) in a ring shape.

8. The vector sample sampling device according to claim 1, characterized in that: The driving member (34) further comprises a driving handle (342) slidably inserted in the sleeve (32), one end of the driving handle (342) extending inside the housing (31) and connected to the trapezoidal abutment head (341).

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