A device for the purification of parasites in animal fecal samples

Abstract

The utility model discloses an animal excrement sample parasitic worm purification device relates to siphon device technical field, including inlet pipe, outlet pipe, pipette and three -way pipe, inlet pipe is connected low -speed water source, and pipette is placed in supernatant top, wherein, when siphon operation, pipette is placed obliquely upwards, and outlet pipe is placed obliquely downwards, and the bottom end position of pipette is higher than the high end position of outlet pipe, and the water flow direction is sequentially flowed to inlet pipe and outlet pipe from low -speed water source, and the supernatant flow direction is flowed to outlet pipe from pipette. The utility model discloses the design of pipette collocates gun head, avoids the high consumption mode of traditional pipettor one tube one gun head, and does not need to frequently change inlet pipe, outlet pipe and pipette when processing multiple samples, significantly reduces experimental cost and plastic waste generation, shortens the time of processing sample, especially suitable for large -scale parasitic worm detection scene.

Description

Technical Field

[0001] This utility model relates to the field of siphon device technology, specifically a device for purifying parasites in animal fecal samples. Background Technology

[0002] In the classic precipitation method for parasite detection, centrifugation followed by supernatant removal is a crucial step, especially when processing fecal samples. It is essential to efficiently discard the supernatant while retaining the precipitate to prevent resuspension and its impact on test results. Currently, laboratories commonly rely on micropipettes with disposable tips for tube-by-tube operations. However, fecal samples are typically processed in batches, with a single experiment potentially involving dozens or even hundreds of samples. In this scenario, the consumption of tips increases dramatically, not only driving up experimental costs but also causing environmental problems due to the accumulation of plastic waste. Furthermore, the repeated loading and unloading of tips by operators is cumbersome and severely restricts the efficiency of large-scale testing. Therefore, an innovative solution is urgently needed that can accurately separate the supernatant while reducing reliance on consumables.

[0003] Currently, the core drawback of existing pipette technology lies in its inability to avoid the rigid requirement of frequent tip replacements. A new tip must be replaced after each sample is processed to prevent cross-contamination, leading to a linear increase in tip consumption with the number of samples. For example, processing 100 samples requires 100 tips, resulting in high procurement costs and the disposal of large amounts of plastic waste, which contradicts the principles of green laboratories. More importantly, tip replacement requires repeated pauses, slowing down the overall process, especially during batch processing. Although micropipettes offer precise control over aspiration, this advantage is offset by the redundant tip replacement operations, becoming a key bottleneck restricting the improvement of detection efficiency. Therefore, developing a continuously operable siphon device that eliminates the need for repeated consumable replacements has significant practical value. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a device for purifying parasites in animal fecal samples.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A device for purifying parasites from animal fecal samples, comprising:

[0007] The inlet pipe, outlet pipe, and liquid extraction pipe are connected by a T-junction, with the inlet pipe positioned between the inlet pipe and the liquid extraction pipe.

[0008] The end of the inlet pipe away from the tee pipe is connected to a low-speed water source, and the end of the suction pipe away from the tee pipe is placed on top of the supernatant that needs to be siphoned.

[0009] During the siphon operation, the suction pipe is placed obliquely upwards in the direction away from the three-way pipe, and the outlet pipe is placed obliquely downwards. The bottom of the suction pipe is higher than the top of the outlet pipe. The water flow direction is from the low-speed water source to the inlet pipe and then to the outlet pipe. The supernatant flows from the suction pipe to the outlet pipe.

[0010] Preferably, the liquid extraction tube includes multiple segments with different inclination angles. As the liquid extraction tube moves further away from the tee, the inclination angle of the segments increases, and the inclination angle of each segment is within the range of 0° to 90°.

[0011] Preferably, the axial length of the segments is set with different dimensions, and the axial length is proportional to the tilt angle. The larger the tilt angle, the longer the axial length.

[0012] Preferably, the three-way pipe is positioned below the low-speed water source, the inlet pipe points obliquely downwards from the low-speed water source to the three-way pipe, the highest point of the suction pipe is lower than the height of the outlet end of the low-speed water source, and the length of the inlet pipe is greater than the lengths of the outlet pipe and the suction pipe.

[0013] Preferably, the end of the suction tube away from the tee tube is sealed with a nozzle, which is cone-shaped and its diameter at any position decreases as the distance from the end of the suction tube increases.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model avoids the high consumption mode of traditional pipettes with one tube and one pipette tip by using a suction tube and a pipette tip. It can process multiple samples without frequently changing the inlet tube, outlet tube and suction tube, which significantly reduces experimental costs and plastic waste generation, and shortens the sample processing time. It is especially suitable for large-scale parasite detection scenarios.

[0016] 2. The multi-segment design of the liquid extraction tube of this utility model can be adapted to centrifuge tubes of different specifications. The tilt angle can be flexibly adjusted to meet diverse sample processing needs. The low-speed water source driven design is suitable for the normal water supply conditions in the laboratory and does not require special equipment support. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 This is a schematic diagram of the structure of a parasite purification device for animal fecal samples according to the present invention;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of region A;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of region B;

[0021] Figure 4 For the present utility model Figure 1 Another perspective structural diagram.

[0022] The diagram is labeled as follows: 1. Inlet pipe; 2. Outlet pipe; 3. Suction pipe; 4. T-connector; 5. Section; 6. Nozzle. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Example

[0025] like Figure 1 , Figure 3 As shown, a parasite purification device for animal feces samples includes an inlet pipe 1, an outlet pipe 2, and a suction pipe 3. A three-way pipe 4 is provided between the three to connect their internal parts. The three-way pipe 4 is made of medical-grade PVC material, which is chemically resistant and highly transparent, making it easy to observe the internal fluid state. The three ports of the three-way pipe 4 are respectively connected to the inlet pipe 1, the outlet pipe 2, and the suction pipe 3 by interference fit and sealing. Polytetrafluoroethylene tape is wrapped around the ports to ensure no leakage.

[0026] The end of the inlet pipe 1 away from the tee pipe 4 is connected to a low-speed water source, such as a conventional low-pressure faucet in the laboratory. The inlet pipe 1 is made of silicone material, which is flexible and easy to adjust the placement angle according to operational needs.

[0027] An L-shaped bracket is fixed to the low-pressure faucet by fastening bolts. A universal joint is welded to the end of the bracket away from the low-pressure faucet. The movable end of the universal joint is connected to the T-pipe 4. Through the multi-angle adjustment of the universal joint, the T-pipe 4 can rotate flexibly within ±15° in the horizontal and vertical directions, thereby adapting to centrifuge tube racks and waste liquid tanks of different heights and significantly improving operational flexibility.

[0028] The end of the suction tube 3 away from the three-way tube 4 is placed on top of the supernatant that needs to be siphoned, such as 0.5 cm below the supernatant of the fecal sample in the centrifuge tube. The suction tube 3 is made of polyolefin material with moderate hardness. It has a certain rigidity to maintain its shape and can withstand slight bending of ±30° to avoid tube breakage due to operation collision.

[0029] The highest point of the suction pipe 3 is lower than the height of the outlet end of the low-speed water source. This design can use gravity to form a stable pressure gradient, ensuring that the negative pressure driven by the water flow can effectively act on the suction pipe 3, and avoid insufficient siphon power due to insufficient height difference.

[0030] The T-pipe 4 is positioned below the low-speed water source. This height difference can create a stable water pressure difference, providing initial power for the siphon. The inlet pipe 1 is angled downwards from the low-speed water source towards the T-pipe 4, allowing the water to flow naturally towards the T-pipe 4 under gravity. The preferred angle is 30°, which can reduce turbulence generated by water flow impact, allowing the water to flow towards the T-pipe 4 in a laminar state, thus reducing energy loss.

[0031] The inlet pipe 1 is placed between the inlet pipe 2 and the liquid extraction pipe 3. The length of the inlet pipe 1 is greater than the length of the outlet pipe 2 and the liquid extraction pipe 3. The length advantage of the inlet pipe 1 can ensure that the water flow forms a stable flow rate before reaching the three-way pipe 4, providing continuous power for the formation of negative pressure.

[0032] Preferred, such as Figure 4 As shown, the liquid extraction tube 3 includes multiple segments 5 with different inclination angles. As the liquid extraction tube 3 moves further away from the three-way tube 4, the inclination angle of the segments 5 increases, and the inclination angle of each segment 5 is within the range of 0° to 90°. This ensures the overall structural stability of the liquid extraction tube 3 and allows for precise control of the position of the liquid extraction end through angle adjustment, avoiding contact with sediment at the bottom of the tube. The segments 5 are connected by a rounded transition to avoid dead angles during liquid flow.

[0033] The axial length of segment 5 is set with different dimensions. Its axial length is proportional to the tilt angle. The larger the tilt angle, the longer the axial length. For example, the tilt angles of segment 5 are 15°, 30° and 45° respectively. The 15° segment is 5cm long, the 30° segment is 8cm long and the 45° segment is 12cm long. This design can be adapted to centrifuge tubes of different specifications. By adjusting the placement angle of the suction tube 3, the pipette tip 6 can be accurately inserted into the supernatant at different depths to avoid touching the sediment at the bottom of the tube.

[0034] Preferred, such as Figure 1-2 As shown, the end of the suction tube 3 away from the tee tube 4 is sealed with a nozzle 6, which is made of transparent polypropylene. The nozzle 6 is cone-shaped, and its diameter at any position decreases as the distance from the end of the suction tube 3 increases, making it easy to insert centrifuge tubes of different diameters.

[0035] Preferred, such as Figure 1 As shown, during the siphon operation:

[0036] Connect the inlet pipe 1 to a low-speed water source. After installing the nozzle 6 on the suction pipe 3, insert it into the top of the supernatant of the first centrifuge tube. Connect the end of the outlet pipe 2 to the waste liquid bucket. In the direction away from the three-way pipe 4, place the suction pipe 3 at an angle upward. Adapt the angle of the segment 5 to the tilted state of the centrifuge tube. Place the outlet pipe 2 at an angle downward to ensure that the waste liquid flows out naturally. The bottom of the suction pipe 3 is higher than the top of the outlet pipe 2.

[0037] When the water source is turned on, the water flows through the inlet pipe 1 and the three-way pipe 4 to the outlet pipe 2. The water flow forms a negative pressure in the three-way pipe 4, which drives the supernatant from the suction pipe 3 through the three-way pipe 4 into the outlet pipe 2.

[0038] After the supernatant in the first centrifuge tube is completely drained, turn off the water supply, insert the next centrifuge tube, and repeat the above steps. This allows for continuous operation without disassembling or replacing the tubing.

[0039] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A device for purifying parasites from animal fecal samples, characterized in that: include The inlet pipe, outlet pipe, and liquid extraction pipe are connected by a T-junction, with the inlet pipe positioned between the inlet pipe and the liquid extraction pipe. The end of the inlet pipe away from the tee pipe is connected to a low-speed water source, and the end of the suction pipe away from the tee pipe is placed on top of the supernatant that needs to be siphoned. During the siphon operation, the suction pipe is placed obliquely upwards in the direction away from the three-way pipe, and the outlet pipe is placed obliquely downwards. The bottom of the suction pipe is higher than the top of the outlet pipe. The water flow direction is from the low-speed water source to the inlet pipe and then to the outlet pipe. The supernatant flows from the suction pipe to the outlet pipe.

2. The parasite purification device for animal fecal samples according to claim 1, characterized in that: The liquid extraction tube includes multiple segments with different inclination angles. As the liquid extraction tube moves further away from the tee tube, the inclination angle of the segments increases, and the inclination angle of each segment is within the range of 0° to 90°.

3. The parasite purification device for animal fecal samples according to claim 2, characterized in that: The axial length of the segments is set with different dimensions, and its axial length is proportional to the tilt angle. The larger the tilt angle, the longer the axial length.

4. The parasite purification device for animal fecal samples according to claim 3, characterized in that: The three-way pipe is positioned below the low-speed water source. The inlet pipe extends obliquely downwards from the low-speed water source towards the three-way pipe. The highest point of the suction pipe is lower than the outlet height of the low-speed water source. The length of the inlet pipe is greater than the lengths of both the outlet pipe and the suction pipe.

5. The parasite purification device for animal fecal samples according to claim 4, characterized in that: The end of the suction tube away from the tee is sealed with a nozzle. The nozzle is cone-shaped, and its diameter at any position decreases as the distance from the end of the suction tube increases.

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