Specimen sampler
By designing an interception channel for the scraping mechanism in the specimen sampler, the problem of inconsistent dilution ratios after mixing feces and buffer solution was solved, thus achieving accuracy and consistency in the test results.
Patent Information
- Application Number
- CN202422833473.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing specimen samplers cannot ensure a consistent dilution ratio each time after mixing feces and buffer solution, resulting in large errors in test results.
A specimen sampler was designed, comprising a container, a cap, and a sampling rod. The sampling rod has a sampling groove, and the container has an interception channel for a scraping mechanism to scrape off excess feces, ensuring that the amount of fecal sample is quantitative and that the dilution ratio is consistent after mixing.
Excess feces are scraped off through an interception channel to ensure a consistent dilution ratio each time, thereby improving the accuracy of test results and reducing errors.
Smart Images
Figure CN223815246U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the field of samplers, in particular to a specimen sampler. BACKGROUND
[0002] Stool examination is one of the routine clinical detection items, and plays an important role in the diagnosis and treatment of clinical diseases. Through this examination, some pathological phenomena of the gastrointestinal tract can be directly understood, and the function of the digestive tract, pancreas, liver and gallbladder can be indirectly judged.
[0003] After collection, the stool needs to be diluted and mixed with a certain amount of buffer, and then a detection reagent plate is added for detection.
[0004] However, the existing specimen sampler usually places the collected stool in a container to mix with the buffer. The mixed buffer cannot be directly added to the detection plate, and needs to be extracted by a liquid taking device such as a dropper into the container, and then added to the detection plate. Since the amount of collected stool varies, the amount of stool mixed with the buffer also varies each time, which makes the detection concentration inconsistent and easily leads to errors in the detection results. CONTENT OF THE INVENTION
[0005] The present disclosure provides a specimen sampler to at least solve the above technical problems in the prior art.
[0006] According to a first aspect of the present disclosure, a specimen sampler is provided, comprising,
[0007] a container containing a buffer inside;
[0008] a cover connected with the container;
[0009] a sampling rod provided with a sampling groove, the sampling rod being connected with the cover, and the container being provided with an open end for insertion of the sampling rod;
[0010] a scraping mechanism arranged on the container for scraping excess stool on the sampling groove;
[0011] The scraping mechanism comprises an intercepting channel formed by the contraction of the inner wall of the sampling body, the intercepting channel divides the container into a first chamber and a second chamber, the first chamber and the second chamber are in communication with the intercepting channel, the buffer is located in the second chamber, when the sampling rod is inserted into the container, the sampling rod passes through the intercepting channel, the outer diameter of the part of the sampling rod passing through the intercepting channel is the same, and the peripheral surface of the sampling rod is in contact with the inner wall of the intercepting channel.
[0012] In an embodiment, the sampling rod is provided with a flow guide channel near one side of the cover, the sampling rod is provided with a flow guide opening on the side surface, the flow guide opening is connected with the flow guide channel, the cover is provided with a liquid outlet channel connected with the flow guide channel, and the flow guide opening is located in the second cavity when the sampling rod is inserted into the container.
[0013] In an embodiment, the cover is provided with an inner plug column at the outlet of the liquid outlet channel.
[0014] In an embodiment, the cover is detachably connected with a cover head, the cover head is fixedly connected with the inner plug column, and the cover head is screw-mounted or snap-mounted on the cover when the inner plug column is inserted into the liquid outlet channel.
[0015] In an embodiment, the cover comprises an integrally formed sealing section and a liquid dripping section, the liquid outlet channel penetrates through the liquid dripping section, the sealing section is provided with a connecting hole connected with the liquid outlet channel, the sealing section is sleeved on the opening end through the connecting hole, and the inner wall of the connecting hole is sealingly connected with the container.
[0016] In an embodiment, the sampling rod is fixedly mounted with a plurality of limiting ribs near one side of the cover, the limiting ribs are distributed in a circumferential direction on the surface of the sampling rod, the end of the sampling rod abuts against the inner wall of the connecting hole when the sampling rod is connected with the cover, the end of the flow guide channel covers the end of the liquid outlet channel, and the limiting ribs abut against the inner wall of the connecting hole.
[0017] In an embodiment, the container is made of soft material.
[0018] In an embodiment, the interception channel is a flared opening near the opening end.
[0019] In an embodiment, the container and the cover are screw-connected or snap-connected.
[0020] In an embodiment, the container is a bottle.
[0021] Compared with the prior art, the specimen sampler has the following beneficial effects: a sampler separates the cover from the container, moves the sampling rod in the container out of the container, then takes part of the fecal sample to be detected through the sampling groove on the sampling rod, and then the sampling rod inserts the excess fecal sample into the container, the interception channel scrapes off the excess fecal sample when the sampling groove on the sampling rod passes through the interception channel, fills the sampling groove with the fecal sample, and stops the scraped fecal sample in the first cavity, and the sampling groove is partially inserted into the buffer solution in the second cavity, so that the amount of the fecal sample in the buffer solution is constant, the dilution ratio is approximately the same each time, and the detection result is less affected.
[0022] It is to be understood that the description of the contents of this section is not intended to identify key or essential features of embodiments of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS
[0023] The above and other objects, features and advantages of the present disclosure exemplary embodiments will be more apparent from the following detailed description read in conjunction with the accompanying drawings, in which:
[0024] In the drawings, identical or corresponding reference signs indicate identical or corresponding parts.
[0025] Figure 1 The overall structure of the specimen sampler of the embodiment of the present disclosure is shown in the schematic diagram;
[0026] Figure 2 The overall structure of the specimen sampler of the embodiment of the present disclosure is shown in the schematic diagram;
[0027] Figure 3 The overall structure of the specimen sampler of the embodiment of the present disclosure is shown in the schematic diagram;
[0028] Figure 4 The structure of the container of the embodiment of the present disclosure is shown in the schematic diagram.
[0029] Figure legend: 1, container; 11, first chamber; 12, second chamber; 13, open end; 2, sampling rod; 21, sampling groove; 22, flow guide channel; 23, drainage port; 3, cover; 31, liquid outlet channel; 32, inner plug column; 33, cap; 34, sealing section; 35, droplet section; 36, connecting hole; 4, scraping mechanism; 41, interception channel; 5, positioning rib. DETAILED DESCRIPTION
[0030] In order to make the purposes, features and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.
[0031] Please refer to Figure 1 and Figure 2The embodiment provides a specimen sampler which comprises a container 1, a sampling rod 2 and a cover 3, the sampling rod 2 is assembled with the cover 3 through expansion, the container 1 is connected with the cover 3 in a threaded connection mode or a clamping mode, the container 1 is provided with an open end 13 for inserting the sampling rod 2, and the container 1 is internally provided with a buffer solution.
[0032] The sampling operation is as follows: a sampler rotates the cover 3, the cover 3 is separated from the container 1, the sampling rod 2 in the container 1 is moved out of the container 1, then part of the fecal sample to be detected is taken out from the fecal sample through the sampling rod 2 and is placed in the container 1, the fecal sample on the sampling rod 2 is mixed and diluted with the buffer solution in the container 1, then the cover 3 is opened, and the mixed solution in the container 1 is poured out for detection.
[0033] In the detection process, basically, the sampling rod 2 is directly inserted into the buffer solution for dilution and mixing after sampling, the amount of fecal sample is more or less, the dilution ratio is deviated, and the detection result is easily affected.
[0034] Please refer to Figure 2 and Figure 3 To solve the above technical problems, the sampling rod 2 comprises a sampling groove 21, the container 1 comprises a scraping mechanism 4, the scraping mechanism 4 is used for scraping the excess sampling fecal sample on the sampling groove 21, the amount of the fecal sample in the buffer solution is quantified, the detection concentration after mixing is not greatly different, and the detection accuracy is improved.
[0035] Please refer to Figure 3 and Figure 4 The scraping mechanism 4 comprises an intercepting channel 41 arranged in the container 1, a waist part is formed on the surface of the container 1, the intercepting channel 41 is formed by the waist part of the container 1, the intercepting channel 41 divides the container 1 into a first chamber 11 and a second chamber 12, the first chamber 11 and the second chamber 12 are in communication with the intercepting channel 41, the buffer solution is arranged in the second chamber 12, and the sampling rod 2 passes through the intercepting channel 41 when the sampling rod 2 is inserted into the container 1.
[0036] When the sampling rod 2 inserts the excess fecal sample into the container 1, the excess fecal sample on the sampling rod 2 is scraped out by the intercepting channel 41 when the head of the sampling rod 2 which is excessively sampled passes through the intercepting channel 41, the excess fecal sample is scraped out at the same time, the sampling groove 21 is filled with the fecal sample, the scraped fecal sample is arranged in the first chamber 11, the amount of the fecal sample in the buffer solution is quantified, and thus the dilution ratio measured each time is approximately the same, and the detection result is less affected.
[0037] Wherein to ensure that the feces in the sampling section do not fall into the second chamber 12 during mixing with the buffer. The outer diameter of the part of the sampling rod 2 that passes through the interception channel 41 is the same, wherein the outer wall of the sampling rod 2 is always in contact with the inner wall of the interception channel 41, thereby facilitating scraping and improving the accuracy of the quantitative results.
[0038] During the process of inserting the rod into the interception channel 41, because the outer diameter of the part of the sampling rod 2 that passes through the interception channel 41 is the same, after the interception channel 41 scratches the surface of the sampling rod 2, the sampling rod 2 blocks the interception channel 41, making it difficult for the feces remaining in the first chamber 11 to fall into the second chamber 12, thereby reducing the impact on the test results.
[0039] Please refer to Figure 3 The side of the interception channel 41 close to the open end 13 is a trumpet, thereby facilitating the insertion of the sampling rod 2 into the interception channel 41 along the inner wall of the trumpet.
[0040] When extracting the mixed buffer in the container 1, the above structure can only separate the cover 3, pull out the sampling rod 2 from the container 1, and then pour or pipette the mixed buffer in the container 1. Pouring the buffer through the first chamber will contact the feces remaining in the chamber, affecting the test results. However, pipetting the mixed buffer in the container 1 is more troublesome and difficult to ensure that the feces remaining in the first chamber will not fall into the second chamber 12.
[0041] Thereby facilitating the extraction of the mixed buffer in the container 1 and reducing the error of the test results. The side of the sampling rod 2 close to the cover 3 is provided with a flow guide channel 22, the peripheral side of the sampling rod 2 is provided with a drainage port 23 connected with the flow guide channel 22, and the cover 3 is provided with a liquid outlet channel 31 connected with the flow guide channel 22. When the sampling rod 2 is inserted into the container 1, the drainage port 23 is located in the second chamber.
[0042] When the mixed buffer in the container 1 needs to be extracted, the container 1 is inverted, and because the interception channel 41 is blocked by the sampling rod 2, the mixed buffer in the container 1 will enter the drainage port 23 after being inverted, then flow into the flow guide channel 22 and the liquid outlet channel 31 through the drainage port 23, and finally flow to the outside, completing the extraction.
[0043] To facilitate the rapid dripping of the mixed buffer, the container 1 is made of soft material, such as plastic, rubber, etc., thereby increasing the internal pressure of the container 1 by squeezing the container 1, thereby pushing the mixed buffer to drip out quickly.
[0044] After the general specimen sampler is sampled, a period of time needs to be waited for the feces to mix with the buffer, dilute, and usually a special support is placed, but it is inevitable that there will be unconscious random placement, at which time the mixed buffer is easy to flow out of the outlet channel 31.
[0045] Please refer to Figure 3 Therefore, the inner plug column 32 is arranged on the cover 3 and at the outlet of the outlet channel 31. When the sampler is irregularly placed, the inner plug column 32 can plug the outlet channel 31 to prevent leakage.
[0046] Among them, the inner plug column 32 is convenient to pull out and plug in. The cover 3 is connected with a cap 33, and the cap 33 is fixedly connected with the inner plug column 32. When the inner plug column 32 is inserted into the outlet channel 31, the cap 33 is screwed on the cover 3. When the inner plug column 32 is pulled out, the cap 33 is only rotated to gradually separate the cap 33 from the cover 3, so that the inner plug column 32 is gradually pulled out of the outlet channel 31, and when the cap 33 is completely separated from the cover 3, the inner plug column 32 is also completely pulled out of the outlet channel 31.
[0047] Please refer to Figure 3 The cover 3 includes a sealing section 34 and a drip section 35 which are integrally formed. The outlet channel 31 penetrates the drip section 35, and the sealing section 34 is provided with a connecting hole 36 which is in communication with the outlet channel 31. The sealing section 34 is sleeved on the open end 13 through the connecting hole 36, and the inner wall of the connecting hole 36 is sealingly connected with the container 1. (The connection mode can be screw connection, specifically, a threaded groove is formed on the inner wall of the connecting hole 36, and a threaded protrusion is arranged on the outer side of the open end 13, or the connection mode can be buckling, etc.)
[0048] Please refer to Figure 3 The sealing section 34 on the cover 3 can be buckled on the container 1. After the sampling rod 2 is deeply inserted into the container 1, the sealing section 34 on the cover 3 can be sealingly connected with the open end 13 of the container 1, so that the cover 3, the sampling rod 2 and the container 1 are fixedly installed together.
[0049] Please refer to Figure 2 And Figure 3 A plurality of limiting ribs 5 are fixedly installed on the side of the sampling rod 2 close to the cover 3. The plurality of limiting ribs 5 are distributed circumferentially along the surface of the sampling rod 2. When the sampling rod 2 is connected with the cover 3, the end of the sampling rod 2 abuts against the inner wall of the connecting hole 36, the end of the flow guide channel 22 covers the end of the outlet channel 31, and the limiting ribs 5 abut against the inner wall of the connecting hole 36. Through the limiting ribs 5, the sampling rod 2 is connected with the cover 3, which is convenient for disassembly and assembly of the two.
[0050] It should be understood that the various forms of flow shown above can be used to reorder, add, or delete steps. For example, the steps described in the present disclosure can be performed in parallel, in series, or in a different order, as long as the desired results of the technical solutions of the present disclosure can be achieved, which are not limited herein.
[0051] In addition, the terms "first", "second", are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0052] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.
Claims
1. A specimen sampler, characterized by, The utility model relates to a fecal sampling device, including, a container (1) containing a buffer solution; a cover (3) connected to the container (1); a sampling rod (2) provided with a sampling groove (21) and connected to the cover (3), the container (1) is provided with an open end (13) for the sampling rod (2) to be inserted into; a scraping mechanism (4) provided on the container (1) for scraping excess feces on the sampling groove (21); the scraping mechanism (4) includes an intercepting channel (41) for scraping feces, the container (1) is divided into a first chamber (11) and a second chamber (12) by the intercepting channel (41), the first chamber (11) and the second chamber (12) are both in communication with the intercepting channel (41), the buffer solution is located in the second chamber (12), when the sampling rod (2) is inserted into the container (1), the sampling rod (2) passes through the intercepting channel (41), the outer diameter of the part of the sampling rod (2) passing through the intercepting channel (41) is the same, the peripheral surface of the sampling rod (2) is in contact with the inner wall of the intercepting channel (41); the sampling rod (2) is provided with a flow guide channel (22) on the side close to the cover (3), the peripheral surface of the sampling rod (2) is provided with a drainage port (23) in communication with the flow guide channel (22), the cover (3) is provided with a liquid outlet channel (31) in communication with the flow guide channel (22), when the sampling rod (2) is inserted into the container (1), the drainage port (23) is located in the second chamber (12).
2. The specimen sampler of claim 1, wherein, the cover (3) is provided with an inner plug column (32) at the outlet of the liquid outlet channel (31).
3. The specimen sampler of claim 2, wherein, the cover (3) is detachably connected with a cap (33), the cap (33) is integrated with the inner plug column (32).
4. The specimen sampler of claim 1, wherein, the cover (3) includes a sealing section (34) and a liquid drop section (35) formed integrally, the liquid outlet channel (31) penetrates through the liquid drop section (35), the sealing section (34) is provided with a connecting hole (36) in communication with the liquid outlet channel (31), the sealing section (34) is sleeved on the open end (13) through the connecting hole (36), and the inner wall of the connecting hole (36) is sealingly connected with the container (1).
5. The specimen sampler of claim 4, wherein, a plurality of limiting ribs (5) are fixedly installed on the side of the sampling rod (2) close to the cover (3), the limiting ribs (5) are distributed circumferentially along the surface of the sampling rod (2), when the sampling rod (2) is connected with the cover (3), the end of the sampling rod (2) abuts against the inner wall of the connecting hole (36), the end of the flow guide channel (22) covers the end of the liquid outlet channel (31), and the limiting ribs (5) abut against the inner wall of the connecting hole (36).
6. The specimen sampler of claim 1, wherein, the container (1) is made of soft material.
7. The specimen sampler of claim 1, wherein, the side of the intercepting channel (41) close to the open end (13) is a flared opening.
8. The specimen sampler of claim 1, wherein, the container (1) and the cover (3) are screw-connected or snap-connected.
9. The specimen sampler of claim 1, wherein, the container (1) is a bottle.