Excrement sample collection and detection device

Abstract

The utility model discloses an excrement sample collecting and detecting device and relates to the technical field of medical instruments. The device comprises a sampling rod and a tube body, a sampling groove for quantitatively collecting an excrement sample is formed in the sampling end of the sampling rod; the tube body comprises a dilution cavity, a scraping part, a liquid storage cavity, a release valve and a release nozzle. The scraping part is used for automatically scraping redundant samples outside the groove when the sampling rod is inserted, so that the quantitative accuracy is ensured; the liquid storage cavity is used for pre-storing a diluent, and the release valve is used for controlling release so as to dilute the excrement. The sampling, quantifying, diluting, uniformly mixing and exporting functions are integrated into a single device, so that the risks of sample exposure, cross contamination and the like as well as operation errors of multiple transfer can be effectively reduced, the operation is simple and convenient, professional training is not needed, and the device is particularly suitable for non-professional personnel to complete various rapid detection items in scenes such as homes, communities and the like; the detection efficiency and the user compliance can be improved, and the method has relatively high popularization and application potential and practical value.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a fecal sample collection and testing device. Background Technology

[0002] Stool testing is a routine clinical examination. Currently, the common procedure in hospitals is as follows: the examinee obtains a stool sampling cup from the laboratory, collects stool from the restroom, transports it to the laboratory, where laboratory personnel collect the stool, mix it with a diluent, discard any excess stool, open the reagent package, remove the reagent, and use a pipette to add the mixed sample to the reagent sample pad before interpreting the results. This process is time-consuming, and patients do not always feel the urge to defecate, leading to low compliance and a high abandonment rate.

[0003] It is worth noting that rapid tests such as occult blood tests do not require complex instruments such as centrifugation and smear preparation, making them suitable for self-testing by non-professionals (such as patients at home or community healthcare workers), thus providing a basis for simplifying the testing process. Several easy-to-use stool sampling and testing devices are already available on the market. Stool is sampled and diluted by the device, then added to a detector (such as an immunoassay strip) for result interpretation. Current sampling devices, such as the integrated stool collector from Merrick, generally include a sampling head and a dilution chamber. The sampling head picks up the stool, which is then diluted with a diluent in the dilution chamber before being added to the detector from the dilution chamber port for result interpretation, thus simplifying the sampling and dilution steps to a certain extent.

[0004] However, while such devices can collect and dilute samples, they cannot automatically quantify feces. When diluting feces, the amount of feces collected by the sampling device often depends on the user's control. Non-professional patients may be unwilling to look directly at or touch the feces, making it difficult to achieve standardized operation when controlling the amount of feces diluted, which can easily lead to deviations in the dilution ratio and affect the accuracy of the test. Therefore, it is necessary to provide a fecal sample collection and testing device that can facilitate sample quantification and operation. Summary of the Invention

[0005] The purpose of this invention is to provide a fecal sample collection and testing device that can overcome the shortcomings of existing technologies.

[0006] To achieve these objectives, this application provides the following technical solution: A fecal sample collection and testing device includes a fecal sample collection device, which includes a sampling rod and a tube; the sampling end of the sampling rod is provided with a sampling groove for intercepting and / or retaining fecal samples; the tube includes: a dilution chamber, the wall of which can deform under external force; a scraper, disposed on the inner wall of the tube, located at the entrance or upstream of the dilution chamber; a liquid storage chamber for storing diluent, forming a communication channel with the dilution chamber; a release valve, disposed in the communication channel; a release nozzle, connected to the dilution chamber, and fitted with an end cap; the sampling rod is movably fitted with the tube and can be selectively inserted into the dilution chamber; when the sampling rod is inserted into the dilution chamber, the scraper is used to scrape off the fecal sample outside the sampling groove on the sampling rod; by squeezing the dilution chamber, the diluted sample in the dilution chamber is discharged through the release nozzle for testing.

[0007] In a preferred embodiment, the liquid storage chamber is provided with a piston and an elastic element. The piston and the liquid storage chamber are slidably sealed together, and the elastic element abuts against the piston and the liquid storage chamber. When the release valve is opened, the elastic element and the piston automatically drive the diluent into the dilution chamber.

[0008] As a preferred embodiment, the scraping member includes a tubular or plate-like structure with a through hole, the inner diameter of which matches the outer diameter of the end of the sampling rod; and / or, the scraping member includes a membrane that can be passed through by the end of the sampling rod.

[0009] In a preferred embodiment, the sampling rod has a hollow cavity formed at the end near the sampling groove, and a hole connected to the hollow cavity is formed on the sampling rod, with the hole located on the side near the sampling end.

[0010] In a preferred embodiment, the tube body includes a first tube body and a second tube body, with a dilution chamber disposed in the second tube body and a liquid storage chamber disposed in the first tube body.

[0011] In a preferred embodiment, the sampling rod includes a gripping part; the gripping part is connected to the inlet end of the tube body through a releasable connection structure; when the sampling rod is inserted into the tube body, the gripping part engages with the tube body through the connection structure to achieve a seal at the inlet end of the tube body.

[0012] In a preferred embodiment, the sampling rod is connected to or integrally formed with the first tube body, the second tube body is connected to a connecting sleeve, and the scraper is disposed inside the connecting sleeve; the first tube body and the connecting sleeve are releasably engaged, and when the sampling rod is inserted into the second tube body, the second tube body achieves a seal at the inlet of the dilution chamber through the engagement of the connecting sleeve with the first tube body.

[0013] In a preferred embodiment, the connecting channel is formed within the first tube, with its two ends directly connected to the liquid storage chamber and the dilution chamber.

[0014] In a preferred embodiment, the sampling rod has an internal channel arranged along its axial direction; when the sampling rod is connected to the first tube, the connecting channel is connected to the internal channel; the end of the sampling rod used for insertion into the dilution chamber has a hole that is connected to the internal channel.

[0015] As a preferred embodiment, the fecal sample detection device further includes a detector, which can be an immunochromatographic test strip or other types of rapid diagnostic detection elements, suitable for rapid detection items such as fecal occult blood and enteric pathogen (rotavirus, adenovirus) antigen detection, so as to facilitate integrated storage and carrying. It is housed in the same main container as the fecal sample collection device for easy storage and carrying.

[0016] The advantages of this application compared to existing technologies are:

[0017] Firstly, this utility model device, by setting a sampling groove on the sampling rod and cooperating with the scraping component inside the tube, can automatically scrape off excess fecal sample outside the sampling groove during insertion, ensuring a stable amount of fecal sample entering the dilution chamber. Combined with a storage chamber pre-stored with diluent and a release valve, it can reduce errors caused by sampling deviation and improper dilution ratio in traditional operations, thus ensuring the accuracy of subsequent test results. In addition, users can independently control the timing of adding diluent, thereby achieving flexible control over the dilution reaction time of fecal samples.

[0018] Secondly, this utility model integrates sampling, quantification, dilution, mixing, and sample export functions into a single sealed tube, eliminating the need for multiple sample transfers or the use of additional tools (such as pipettes or stirring rods). This helps reduce the risk of fecal sample exposure and cross-contamination, making it particularly suitable for non-professionals to operate in home or community settings. For users, this design allows for immediate collection upon the urge to defecate, avoiding the hassle of sample transportation and storage. Furthermore, the absence of prolonged direct viewing or contact with feces during operation effectively reduces user discomfort and operational barriers, improving patient compliance.

[0019] Thirdly, this invention's device is adaptable to various fecal sample characteristics and improves mixing efficiency. In some embodiments of this invention, for liquid or semi-liquid fecal samples (such as diarrhea samples), a sampling end design with a hollow chamber and sidewall through-holes is provided, allowing for immersion sampling. Simultaneously, by utilizing the piston and elastic element within the liquid storage chamber, the diluent can flush the fecal sample in the sampling groove or hollow chamber after triggering the release valve, thereby achieving rapid premixing and efficient dispersion, shortening the time required for manual shaking and mixing, making it particularly suitable for scenarios requiring rapid detection. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of one embodiment of the fecal sample collection device provided in Embodiment 1 of this application;

[0022] Figure 2 The following are schematic diagrams of different implementations of the sampling groove provided in Embodiment 1 of this application, wherein (a) corresponds to an annular groove, (b) corresponds to a spiral groove, and (c) corresponds to a through groove;

[0023] Figure 3 This is a schematic diagram of the communication channel and release valve structure provided in Embodiment 1 of this application;

[0024] Figure 4 This is a schematic diagram showing the state in which the sampling rod is separated from the tube body when the fecal sample collection device provided in Embodiment 1 of this application is in use;

[0025] Figure 5 The following are front structural diagrams of different embodiments of the dilution chamber provided in Embodiment 1 of this application, wherein (a) corresponds to a flexible cavity wall structure and (b) corresponds to a foldable cavity wall structure with indentations.

[0026] Figure 6 This is a schematic diagram of one embodiment of the fecal sample collection device provided in Embodiment 2 of this application;

[0027] Figure 7 The following are partial structural diagrams of different embodiments of the sampling rod provided in Embodiment 2 of this application, wherein (a) corresponds to an annular groove and (b) corresponds to a through groove;

[0028] Figure 8 This is a schematic diagram of one embodiment of the fecal sample collection device provided in Embodiment 3 of this application;

[0029] Figure 9 This is a schematic diagram of one embodiment of the fecal sample collection device provided in Embodiment 4 of this application;

[0030] The markings in the diagram are: 100-Sampling rod, 101-Sampling groove, 102-Holding part, 103-Internal channel, 104-Hole, 105-Hollow chamber, 200-Tube body, 201-Liquid storage chamber, 202-Scraper, 203-Dilution chamber, 204-Release nozzle, 205-End cap, 206-Connecting channel, 207-Release valve, 2071-Knob, 2072-Valve body, 208-Piston, 209-Elastic element, 210-Filter membrane, 211-Indentation, 300-First tube body, 400-Second tube body, 500-Connecting sleeve. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Example 1, please refer to Figures 1 to 5This embodiment provides a fecal sample collection device for collecting and diluting fecal samples, including a sampling rod 100 and a tube 200. The sampling rod 100 is movably disposed within the tube 200. The sampling rod 100 is configured with a sampling end and a gripping part 102 along its axial direction. The sampling end is provided with multiple sampling grooves 101 for collecting fecal samples. The gripping part 102 has a larger outer diameter than the sampling end to facilitate gripping and operation. The gripping part 102 can have any shape that is easy to grip, such as cylindrical or prismatic, and its surface can be provided with anti-slip textures, pits, or protrusions as needed to increase operational stability. This application does not impose any particular limitation on the specific shape of the gripping part 102.

[0036] Please see Figure 2 The sampling groove 101 can be configured in various ways: such as Figure 2 As shown in (a), in order to facilitate cleaning and reduce fecal sample residue, the sampling groove 101 can be configured as an annular groove circumferentially arranged around the sampling rod 100; as Figure 2 As shown in (b), to facilitate entanglement sampling of viscous samples, the sampling groove 101 can also be configured as a spirally distributed continuous thread; as Figure 2 As shown in (c), in order to accelerate the dissolution of fecal samples, the sampling groove 101 can also be configured as a through groove that runs through the inner and outer sides of the sampling rod 100; and in order to optimize sampling, the cross-sectional shape of the groove can also be configured as any one of V-shape, square, trapezoid or other geometric shapes as required, and this application does not make any special limitation on this.

[0037] Please see Figure 1 and Figure 4 As shown in the figure, an opening is formed at the end of the tube 200, through which the sampling rod 100 can be inserted into the tube 200. The grip 102 engages with the opening of the tube 200 via a releasable connection structure to achieve a reliable seal at the inlet end of the tube 200, preventing liquid leakage from the tube 200; for example, as... Figure 1 As shown, an external thread is provided on the outside of the gripping part 102, and a matching internal thread is provided on the inside of the opening of the tube body 200. The connection and sealing are achieved by tightening the threads; or, in some embodiments of this application, the gripping part 102 and the opening of the tube body 200 can be fixed in a releasable manner by means of a snap-fit ​​connection; and to achieve reliable liquid tightness, a sealing ring can also be provided for cooperation (not shown in the figure), which is not particularly limited in this application.

[0038] Please see Figure 1 , Figure 4 and Figure 5(a) A liquid storage chamber 201 is formed on the side of the opening of the tube body 200. The liquid storage chamber 201 is generally tubular and is used to seal and store diluents such as physiological saline and phosphate buffer solution. A scraper 202 is provided below the opening of the tube body 200. The scraper 202 is a tubular component with a through hole. The inner diameter of the through hole is tightly fitted with the outer diameter of the sampling end of the sampling rod 100. It is used to scrape off excess sample from the outer peripheral wall of the sampling rod 100, except for the feces remaining in the sampling groove 101, when the sampling rod 100 is inserted into the tube body 200, ensuring that a quantitative fecal sample can enter the dilution chamber 203 below. The lower part of the scraper 202 and the inner wall of the tube body 200 together define the dilution chamber 203, which is used to contain the scraped fecal sample and mix and dilute it with the diluent. The wall of the dilution chamber 203 is a flexible silicone wall or PE wall, which can deform under external pressure, making it easier to extract the diluted sample by subsequent squeezing. Or, as Figure 5 As shown in (b), as an optional embodiment, the wall of the dilution chamber 203 is configured as a foldable structure, with indentations 211 arranged in a mesh or linear pattern on its outer wall. These indentations 211 form directionally bendable folding surfaces, allowing the chamber wall to fold along the preset indentations 211 under manual pressure, thereby reducing the volume of the dilution chamber 203. A release nozzle 204 is provided at the bottom of the dilution chamber 203. The release nozzle 204 is conical, and an end cap 205 is fitted at the release nozzle 204. The end cap 205 is used to seal the release nozzle 204 during sample dilution, preventing leakage of the diluent or diluted fecal sample and ensuring the sealing of the dilution process. Optionally, a filter membrane 210 may also be provided at the release nozzle 204 to filter out undissolved particles when discharging the diluted fecal sample.

[0039] Please see Figure 1 and Figure 3 A connecting channel 206 is formed between the liquid storage chamber 201 and the dilution chamber 203. Both ends of the connecting channel 206 are connected to the liquid storage chamber 201 and the dilution chamber 203, respectively. A release valve 207 is provided in the connecting channel 206 to control the release of the diluent. For example, the release valve 207 may include a knob 2071 and a valve body 2072. Rotating the knob 2071 controls the alignment of the hole on the valve body 2072 with the connecting channel 206 to achieve conduction or blockage. Alternatively, in this application… In some embodiments, the release valve 207 can also be a puncturable diaphragm, which allows the liquid storage chamber 201 and the dilution chamber 203 to be permanently connected by puncturing the diaphragm, thereby controlling the release of the diluent. In comparison, a release valve 207 that uses a knob 2071 and a valve body 2072 in combination can achieve more precise flow control and support multiple opening and closing operations, making it more flexible and reliable in use. Diaphragm-type release valves are low-cost, disposable solutions. This application does not impose any particular limitation on the specific implementation of the release valve 207.

[0040] Please see Figure 4 It demonstrates one method of using this application, which the operator can do as follows: Figure 4 As shown, the sampling rod 100 can be removed from the tube body 200 by rotating the grip 102; the sampling groove 101 at the end of the sampling rod 100 is used to collect a fecal sample; the sampling rod 100 with the sample is inserted into the tube body 200, and when the sampling rod 100 passes through the through hole of the scraper 202, the scraper 202 will scrape off all excess fecal sample attached to the outside of the sampling groove 101, ensuring that only a quantitative sample in the sampling groove 101 enters the dilution chamber 203; the release valve 207 is operated to connect the storage chamber 201 and the dilution chamber 203; the diluent in the storage chamber 201 flows into the dilution chamber 203 under the action of gravity or external driving force and mixes with the fecal sample; the tube body 200 is shaken to fully mix the sample and the diluent to form a uniform diluted sample; the end cap 205 at the release nozzle 204 is opened, and the flexible cavity wall of the dilution chamber 203 is squeezed to discharge the diluted sample from the release nozzle 204 and drop it onto the detector for detection.

[0041] Please see Figure 1 and Figure 3 The liquid storage chamber 201 is further provided with a piston 208 and an elastic element 209. The piston 208 is slidably sealed to the inner wall of the liquid storage chamber 201. The elastic element 209 is a compression spring or an elastic rubber sleeve, housed in the liquid storage chamber 201, with one end abutting against the piston 208 and the other end abutting against the end of the liquid storage chamber 201 away from the release valve 207. The elastic element 209 is in a pre-compressed state in the initial state. When the release valve 207 is triggered and opened by the user, the restoring force of the elastic element 209 drives the piston 208 to move axially along the liquid storage chamber 201, quickly pushing the diluted liquid stored in the liquid storage chamber 201 into the dilution chamber 203 through the connecting channel 206, thereby realizing an automatic liquid addition process. To ensure the smooth operation of the driving process, a vent is preferably provided on the wall of the chamber where the elastic element 209 is located to balance the back pressure when the piston 208 moves, ensuring that the diluent can be completely pushed out. Similarly, to ensure that the diluent can smoothly and completely enter the dilution chamber 203, a vent covered by a breathable membrane can optionally be provided on the top or side wall of the dilution chamber 203 to allow air to escape when the diluent is injected, while effectively preventing liquid leakage. It is understood that the piston 208 will move to the bottom of the storage chamber 201 under the drive, thereby pushing the diluent in the chamber almost completely into the dilution chamber 203, ensuring the accuracy of the dilution ratio. At the same time, the diluent is rapidly injected into the dilution chamber 203 under pressure, which impacts the fecal sample in the chamber, helps to initially disperse and wet the sample, so that the subsequent shaking and mixing can reach a uniform state in a shorter time, improving the operating efficiency.

[0042] Example 2, please refer to Figure 6 This embodiment provides a fecal sample collection device, which includes a sampling rod 100 and a tube 200. The difference from Embodiment 1 is that the tube 200 adopts a split design, mainly including a first tube 300 and a second tube 400. The first tube 300 has a liquid storage chamber 201, the structure of which is similar to that described in Embodiment 1. The sampling rod 100 is integrally formed with or fixedly disposed on the first tube 300. The second tube 400 has a dilution chamber 203, with a release nozzle 204 formed at its bottom, and an end cap 205 sealed at the release nozzle 204. The bottom of the first tube 300 and the top of the second tube 400 are detachably sealed together via a connecting sleeve 500. Specifically, the connecting sleeve 500 is fixedly connected to the second tube 400. The bottom outer wall of the tube body 300 and the upper inner wall of the connecting sleeve 500 are sealed together by threads; the scraper 202 is disposed inside the connecting sleeve 500, and the scraper 202 includes a silicone membrane or a rubber membrane, on which a through hole can be formed. The inner diameter of the through hole is tightly fitted with the outer diameter of the end of the sampling rod 100 with the sampling groove 101; or, the silicone membrane or rubber membrane may also be a non-porous structure that can be passed through by the end of the sampling rod 100. The scraper 202 is used to scrape off excess fecal sample outside the sampling groove 101 on the surface of the sampling rod 100 when it passes through.

[0043] Please see Figure 7 (a) To achieve directional flow of the diluent, an internal channel 103 is provided axially within the sampling rod 100. When the first tube 300 is fixedly engaged with the sampling rod 100, the connecting channel 206 at the bottom of the storage chamber 201 is connected to the upper inlet of the internal channel 103. The lower end of the internal channel 103 extends to the sampling end of the sampling rod 100, and at least one hole 104 communicating with the internal channel 103 is provided on the side wall of this end. Thus, when the release valve 207 is opened, the diluent in the storage chamber 201 can sequentially pass through the connecting channel 206 and the internal channel 103, and finally be discharged from the hole 104 into the dilution chamber. Please refer to [link to previous section]. Figure 7 (b) As a preferred embodiment, when this method is adopted, the sampling groove 101 can be constructed as a through groove, the sampling groove 101 connecting the dilution chamber 203 and the internal channel 103, so that the diluent in the storage chamber 201 can directly flush the fecal sample retained in the sampling groove 101 at the end of the sampling rod 100 and enter the dilution chamber, thereby effectively improving the flushing efficiency and mixing effect of the diluent on the fecal sample.

[0044] Please see Figure 6 and Figure 7By rotating the grip 102 or the first tube 300, the first tube 300 and the second tube 400 can be separated. The sampling groove 101 at the end of the sampling rod 100 is used to collect a fecal sample. The first tube 300 and the second tube 400 with the collected sample are connected and assembled through the connecting sleeve 500. During the assembly process, when the sampling rod 100 passes through the membrane of the scraper 202 in the connecting sleeve 500, all excess fecal sample attached to the sampling groove 101 is scraped off, ensuring that only a fixed amount of fecal sample in the sampling groove 101 enters the dilution chamber 203 of the second tube 400. The release valve 207 (specific implementation of which is described in Example 1) on the first tube 300 is operated to connect the storage chamber 201 and the dilution chamber 203, allowing the diluent to flow into the dilution chamber 203 and mix with the fecal sample. The device is then shaken to ensure that the sample and the diluent are fully mixed.

[0045] Example 3, please refer to Figure 8 This embodiment provides a fecal sample collection device, which includes a sampling rod 100 and a tube 200. The arrangement of the sampling rod 100 and the tube 200 is the same as in Embodiment 1. The difference is that the end of the sampling rod 100 inserted into the dilution chamber 203 forms a hollow chamber 105, and at least one hole is provided on the side wall of the hollow chamber 105. This structure is suitable for collecting liquid or semi-liquid fecal samples, such as diarrheal feces, watery feces, etc. During sampling, the hollow chamber 105 is immersed below the surface of the liquid feces. The liquid feces can flow into and remain inside the hollow chamber 105 through the hole, thereby achieving quantitative sampling. When the sampling rod 100 is inserted into the tube 200, the diluent can also flow into the hollow chamber 105 through these holes and mix with the remaining quantitative liquid feces.

[0046] Example 4, please refer to Figure 9 This embodiment provides a fecal sample collection device, which includes a sampling rod 100 and a tube 200. The matching method between the sampling rod 100 and the tube 200 can be referred to in Embodiment 2. The difference is that the end of the sampling rod 100 inserted into the dilution chamber 203 is configured to form a hollow chamber 105. The hollow chamber 105 is connected to the lower end of the internal channel 103 axially arranged inside the sampling rod 100, and at least one hole 104 is formed on the side wall of the hollow chamber 105. During sampling, the hollow chamber 105 is immersed in liquid feces. The liquid feces can flow into and remain inside the hollow chamber 105 through the hole 104. When the first tube 300 and the second tube 400 are assembled and the release valve 207 is opened, the diluent flows through the internal channel 103 under pressure and flows out at high speed from the collection hole of the hollow chamber 105, thereby forming a positive flush on the liquid feces sample remaining in the hollow chamber 105, achieving faster and more efficient mixing and shortening the time required for subsequent shaking and mixing.

[0047] Example 5 provides a fecal sample collection and testing device, including a detector and the fecal sample collection device described in any one of Examples 1 to 4 above. The detector can be an immunochromatographic test strip or other type of rapid diagnostic detection element; this application does not impose any particular limitation on the specific type of detector. The detector can be located on the outside of the fecal sample collection device and housed together with the collection device in the same main container for easy storage and portability. After the operator uses the fecal sample collection device to complete sampling, quantification, and dilution, the prepared diluted sample can be directly added from the release nozzle to the sample application area of ​​the detector. After waiting for a certain reaction time, the test result can be interpreted, realizing the operation from sampling to result interpretation. Since the fecal sample detection device of this embodiment adopts all the technical solutions of Examples 1 to 4 above, the fecal sample detection device of this embodiment has all the technical effects brought about by the technical solutions of the above embodiments; therefore, the beneficial effects of the fecal sample detection device of this embodiment will not be elaborated further.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fecal sample collection and testing device, comprising a fecal sample collection device, characterized in that, The fecal sample collection device includes a sampling rod and a tube. The sampling end of the sampling rod is provided with a sampling groove for intercepting and / or retaining fecal samples; The tube body includes: The dilution chamber's walls can deform under external forces. A scraper is disposed on the inner wall of the tube, located at the inlet or upstream of the dilution chamber; The liquid storage chamber is used to store the diluent and forms a communication channel with the dilution chamber. A release valve is provided in the connecting channel; The release nozzle is connected to the dilution chamber and is fitted with an end cap. The sampling rod is movable and can be selectively inserted into the dilution chamber; When the sampling rod is inserted into the dilution chamber, the scraper is used to scrape off the fecal sample outside the sampling groove on the sampling rod; By squeezing the dilution chamber, the diluted sample in the dilution chamber is discharged through the release nozzle for testing.

2. The fecal sample collection and detection device according to claim 1, characterized in that, The liquid storage chamber is equipped with a piston and an elastic element. The piston and the liquid storage chamber are slidably sealed together, and the elastic element abuts against the piston and the liquid storage chamber; When the release valve opens, the elastic element and piston automatically drive the diluent into the dilution chamber.

3. The fecal sample collection and testing device according to claim 1, characterized in that, The scraping component includes a tubular or plate-like structure with a through hole, the inner diameter of which matches the outer diameter of the end of the sampling rod. And / or, the scraper includes a membrane that can be passed through the end of the sampling rod.

4. The fecal sample collection and testing device according to claim 1, characterized in that, The sampling rod has a hollow cavity formed at the end near the sampling groove, and a hole is formed on the sampling rod that communicates with the hollow cavity. The hole is located on the side near the sampling end.

5. The fecal sample collection and detection device according to claim 1, characterized in that, The pipe body includes a first pipe body and a second pipe body, The dilution chamber is located in the second tube, and the liquid storage chamber is located in the first tube.

6. The fecal sample collection and testing device according to claim 5, characterized in that, The sampling rod includes a grip portion; The gripping part is connected to the inlet end of the tube body via a releasable connection structure; When the sampling rod is inserted into the tube, the gripping part engages with the tube through the connecting structure to achieve a seal at the tube inlet.

7. The fecal sample collection and detection device according to claim 5, characterized in that, The sampling rod is connected to or integrally formed with the first tube. The second tube body is connected to a connecting sleeve, and the scraper is disposed inside the connecting sleeve; The first tube body and the connecting sleeve can be releasably engaged. When the sampling rod is inserted into the second tube, the second tube is connected to the first tube through the connecting sleeve, thus sealing the entrance of the dilution chamber.

8. The fecal sample collection and detection device according to claim 5, characterized in that, The connecting channel is formed in the first tube, and its two ends are directly connected to the liquid storage chamber and the dilution chamber.

9. The fecal sample collection and detection device according to claim 5, characterized in that, The sampling rod has an internal channel arranged along its axial direction. When the sampling rod is connected to the first tube, the connecting channel is connected to the internal channel. The sampling rod is inserted into the dilution chamber at one end, forming a hole that connects to the internal channel.

10. The fecal sample collection and testing device according to any one of claims 1-9, characterized in that, It also includes a detector, which is located outside the fecal sample collection device and housed in the same main container as the fecal sample collection device.

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