Spoon-like sample preparation cartridge
By designing a slit at the bottom of the spoon and incorporating a rotating part, the problem of poor stirring caused by fecal adhesion is solved, achieving efficient dispersion and enrichment of fecal samples, simplifying the preparation process, reducing the risk of contamination, and supporting fully automated detection.
Patent Information
- Application Number
- CN202521891057.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-03
AI Technical Summary
In existing technologies, during the preparation of fecal samples, feces adhere to the bottom of the spoon while it is rotating, which prevents effective stirring, increases sample contamination and process complexity, and makes it difficult to achieve fully automated detection.
Design a sample preparation box with a spoon. The bottom of the spoon has a slit with a width of less than 2.0 mm. Combined with the protrusion of the rotating part and the toothed part of the spoon, it is used to disperse the fecal sample during rotation. The enrichment and dispersion of the sample are achieved through the filter partition and cavity structure.
It effectively prevents feces from adhering to the bottom of the spoon, improves stirring efficiency, reduces the risk of sample contamination, simplifies the operation process, and realizes automated sample preparation and enrichment.
Smart Images
Figure CN224681901U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of detection technology, and specifically relates to an apparatus for preparing samples containing solid substances such as feces. Background Technology
[0002] Before biological samples can be analyzed, they need to be processed according to the specific testing requirements, and then the testing can be performed based on the corresponding principles. Different testing principles necessitate different pre-treatment requirements and procedures for samples. Raw samples typically require specialized operations such as dilution, staining, centrifugation, and concentration. These preparation operations usually need to be performed by testing personnel according to standardized procedures.
[0003] With technological advancements, the number of testing items is increasing, and the required accuracy is also rising. This places higher demands on testing personnel. However, human operational capabilities and precision are limited, and many intricate procedures are gradually exceeding human limits. This is particularly true in veterinary hospitals, where there are many different types of animals and an ever-growing number of testing items. However, due to cost constraints and a limited number of testing personnel, many testing procedures are difficult to conduct.
[0004] Therefore, both human and veterinary hospitals need to fully automate the testing process, minimizing the steps that require human intervention.
[0005] In existing technologies, the sampling and preparation of samples such as feces require separate spoons and boxes, which not only increases the complexity of the process but also increases the chance of sample contamination and interference during the process. In sample preparation, how to balance convenience of sampling and preparation processes, allowing sampling and sample preparation to share components as much as possible to reduce process complexity, while simultaneously reducing the probability of sample contamination and interference during transfer, is also a technical problem that needs to be solved.
[0006] In fecal testing, sample preparation is automated, leading to the development of sampling preparation kits that combine sample collection and mixing. However, these kits have several problems in practical use. For instance, during the rotation of the spoon, feces adhere to the bottom, hindering effective mixing. Summary of the Invention
[0007] In this application, in order to prevent feces from sticking to the bottom of the spoon during the stirring process and causing the stirring to be ineffective, the applicant proposes to open a gap of appropriate width at the bottom of the spoon so that the liquid can impact the bottom of the spoon during the stirring process, impacting the clump of feces from the inside and outside, so that the feces at the bottom of the spoon can be quickly broken up and enter the rotating crushing state.
[0008] The technical solution of this application to solve the above-mentioned technical problems is a sample preparation box with a spoon, including: a sampling spoon, a receiving part, and a cover; the sampling spoon includes a rotating part and a spoon part; the rotating part and the spoon part are fixedly connected; the cover includes a rotating connecting part; the rotating part and the rotating connecting part are connected; the receiving part includes cavity A and cavity B; a filter partition is provided between cavity A and cavity B; in the closed state, the cover covers the opening of cavity A, and the spoon part is in cavity A; the bottom of the spoon part includes a bottom opening.
[0009] Yes, the opening at the bottom of the spoon can be slit-shaped, with the slit width less than 2.0 mm.
[0010] It is possible that the bottom of cavity B includes a downward recess, which is used for sample aggregation and enrichment.
[0011] It is possible that the downward concave part at the bottom of cavity B is an inverted cone shape.
[0012] It can be that the rotating part has a protrusion near the spoon part, and the protrusion is used to drive the sample to rotate during the rotation; the protrusion includes protrusion A and protrusion B, which are distributed on both sides of the rotating part; the edge of the protrusion includes protruding teeth; the end of the rotating part includes a protruding ring.
[0013] It can be that the edge of the spoon includes the serrated edge; the serrated edge is on the lower edge of the spoon, or the serrated edge is on the left or right edge of the spoon.
[0014] It is possible that the bottom of cavity A includes an upward protrusion, which is used to prevent the sample from accumulating in the center of the bottom. The upward protrusion at the bottom of cavity A is hemispherical.
[0015] It is possible that the cover covers all or part of the upper part of cavity A, but does not cover cavity B.
[0016] It is possible that the cover also includes an inlet / outlet hole; in the closed state, the cover covers the openings of cavity A and cavity B, and the inlet / outlet hole corresponds to the opening of cavity B, for the entry and exit of substances in cavity B.
[0017] It is possible that the filter partition includes a filter screen with a mesh size greater than 150 mesh and less than 250 mesh; the cross-sectional area of cavity A is greater than the cross-sectional area of cavity B.
[0018] Yes, the filter plate may include narrow slits, the width of which is less than 0.3 mm, and there may be one or more slits.
[0019] One of the technical effects of the above-mentioned technical solution is that the bottom of the spoon, including the bottom opening, prevents some feces from being retained at the bottom due to centrifugal force during rotation; it allows the fecal sample to pass through the bottom, making the dispersion and flow of substances smoother.
[0020] One of the technical advantages of the above-mentioned solution is that the opening at the bottom of the spoon is slit-shaped, with a slit width of less than 2.0 mm. This allows fluids and sufficiently small-sized substances to pass through while preventing large-sized substances from passing through, which is beneficial for the crushing and dispersion of large particles during rotation. The smaller slit size also prevents excessive leakage of feces from the bottom during sampling, thus preserving the sampling function.
[0021] One of the technical advantages of the above-mentioned solution is that the bottom of cavity B includes a downward-curved section, which is used for sample aggregation and enrichment. Cavity B has a smaller cross-sectional area, allowing the target analyte to aggregate and deposit in the dispersed suspension within this space, facilitating subsequent sampling. Furthermore, the enrichment level increases closer to the bottom.
[0022] One of the technical effects of the above-mentioned technical solution is that the downward concave part at the bottom of cavity B is inverted cone-shaped, which helps the target detection material to accumulate in this space and facilitates the subsequent sample collection.
[0023] One of the technical effects of the above-mentioned solution is that the rotating part has a protrusion near the spoon, which drives the sample to rotate during the rotation process. This helps to disperse and pulverize the fecal sample.
[0024] One of the technical effects of the above-mentioned technical solution is that the A protrusion and the B protrusion are located on both sides of the rotating part, which is beneficial to crushing the fecal sample during the rotation of the rotating part.
[0025] One of the technical effects of the above-mentioned technical solution is that the edge of the protrusion includes protruding teeth, which further facilitates the crushing of fecal samples during the rotation of the rotating part.
[0026] One of the technical effects of the above-mentioned technical solution is that the edge of the spoon includes a toothed portion, which is used to improve the efficiency of crushing fecal samples. The sample can be crushed while the spoon is scooping it up.
[0027] One of the technical effects of the above-mentioned technical solution is that the bottom of cavity A includes an upward protrusion, which is used to prevent the sample from accumulating at the bottom center; normal fecal samples will concentrate and gather at the bottom after rotation, and this structure can prevent accumulation at the bottom center.
[0028] One of the technical effects of the above-mentioned technical solution is that the upward protrusion at the bottom of cavity A is hemispherical, which facilitates manufacturing and also better prevents accumulation at the bottom.
[0029] One of the technical effects of the above-mentioned technical solution is that the toothed part of the spoon is used to improve the efficiency of crushing fecal samples, while preventing some feces from being stuck at the bottom due to centrifugal force during the rotation of the spoon.
[0030] One of the technical effects of the above-mentioned technical solution is that the inlet and outlet holes correspond to the opening of cavity B, which is used for the entry and exit of substances in cavity B, facilitating the input and output of samples.
[0031] One of the technical effects of the above-mentioned technical solution is that the filter plate includes a filter screen, which facilitates the entry of target objects within a set size range into cavity B.
[0032] One of the technical effects of the above-mentioned technical solution is that the cross-sectional area of cavity A is larger than that of cavity B, which facilitates the enrichment of the target analyte in cavity B.
[0033] One of the technical advantages of the above-mentioned technical solution is that the cavity A and cavity B are integrally formed, which facilitates manufacturing.
[0034] One of the technical effects of the above-mentioned technical solution is that the overall cross-section of the receiving part is in the shape of a teardrop, which is smaller at one end and larger at the other, thus achieving enrichment while facilitating manufacturing and gripping. Attached Figure Description
[0035] Figure 1 This is a three-dimensional view of Embodiment 1; Figure 2 This is a schematic diagram of the exploded perspective view of Example 1; Figure 3 This is a schematic cross-sectional view of Embodiment 1; Figure 4 This is a magnified view of a portion of the sampling spoon; Figure 5 This is an exploded view of some components; Figure 6 This is a three-dimensional view of Embodiment 2; Figure 7 This is a schematic diagram of the centerline cross-sectional view of Embodiment 2; Figure 8 This is an exploded perspective view of Example 2. Detailed Implementation
[0036] The content of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that the following description is of preferred embodiments of this application and does not constitute any limitation on this application. The description of the preferred embodiments is merely an explanation of the general principles of this application. The use of terms such as "first," "second," and "A," "B" in this application is for ease of explanation only and does not represent a temporal or spatial order. The combinations of letters and numbers "S," "M," and "H" in this application are also for ease of explanation, and their specific meanings are determined by the specific content they refer to.
[0037] like Figure 1 A perspective view of an embodiment of a sample preparation box with a spoon, including: a sampling spoon, a receiving part 0110, and a cover part 0120.
[0038] like Figure 2An exploded perspective view of an embodiment of a sample preparation box with a spoon is shown. The sampling spoon 0210 includes a rotating part 0211 and a spoon part 0212, which are fixedly connected. The cover part 0120 includes a rotating connecting part 0270, which is connected to the rotating part 0211. The receiving part includes cavity A 0230 and cavity B 0220; a filter partition 0240 is provided between cavity A and cavity B.
[0039] like Figure 3 A schematic cross-sectional view of an embodiment of a sample preparation box with a spoon; in the closed state, the cover 0120 covers the opening of cavity A 0230, and the spoon is in cavity A; the bottom of the spoon includes a spoon bottom opening 0310.
[0040] like Figure 3 In the sectional view, the receiving part includes cavity A 0230 and cavity B 0220; a filter baffle 0240 is provided between cavity A and cavity B; the opening of the bottom of the spoon is slit-shaped, the width of the slit is less than 2.0 mm, preferably 0.5 mm, and greater than 0.2 mm.
[0041] like Figure 3 The bottom of cavity B includes a downward-curved section 0320, which is used for sample aggregation and enrichment. The downward-curved section at the bottom of cavity B is inverted conical in shape.
[0042] like Figure 4 The rotating part has a protrusion near the spoon part, which is used to drive the sample to rotate during the rotation process; in the magnified state, the bottom of the spoon part includes a spoon bottom opening 0310.
[0043] like Figure 4 A magnified schematic diagram of a portion of the sampling spoon; the protrusions include protrusion A 0411 and protrusion B 0412, which are located on both sides of the rotating part; the edges of the protrusions include protruding teeth.
[0044] like Figure 2 The end of the rotating part includes a protruding ring 0280.
[0045] like Figure 4 The edge of the spoon includes the spoon teeth 0420; the spoon teeth are located at the lower edge of the spoon. Alternatively, the spoon teeth may be located at the left and right edges of the spoon.
[0046] like Figure 3 The bottom of cavity A includes an upward protrusion 0330, which is used to prevent the sample from accumulating in the center of the bottom. The upward protrusion at the bottom of cavity A is hemispherical.
[0047] like Figure 3 The cover covers all or part of the upper part of cavity A, but does not cover cavity B.
[0048] like Figure 5 The exploded view of some components in the above embodiment shows that the filter partition 0240 includes a filter screen 0510 with a mesh size greater than 150 mesh and less than 250 mesh; the cross-sectional area of cavity A is greater than the cross-sectional area of cavity B.
[0049] like Figures 6 to 8 Example 2. Figure 6 This is a perspective view of Embodiment 2. The cover 0610 also includes an inlet / outlet hole 0620. like Figure 7 This is a centerline cross-sectional view of Embodiment 2, in the closed state. The cover covers the openings of cavity A 0730 and cavity B 0720, and the inlet / outlet hole 0620 corresponds to the opening of cavity B and is used for the entry and exit of substances in cavity B.
[0050] like Figure 8 This is an exploded perspective view of Embodiment 2. The inlet / outlet hole 0620 corresponds to the opening of cavity B 0720 and is used for the entry and exit of substances in cavity B.
[0051] Yes, the filter baffle may include narrow slits, less than 0.3 mm wide, and there may be one or more slits. The slit width can be around 0.2 mm, which can block undispersed feces while allowing the target object to pass through.
[0052] While this application has been described and illustrated with reference to preferred embodiments and several alternatives, it is not intended to be limited to the specific descriptions herein. Other alternatives or equivalent components may also be used to practice this application.
Claims
1. A sample preparation kit with a spoon, characterized in that, include: Sampling spoon, receiving part, lid; The sampling spoon includes a rotating part and a spoon part; the rotating part and the spoon part are fixedly connected. The cover includes a rotatable connecting part; the rotatable part is connected to the rotatable connecting part; The receiving part includes cavity A and cavity B; a filter partition is provided between cavity A and cavity B; In the closed state, the cover covers the opening of cavity A, and the spoon is inside cavity A; The bottom of the spoon includes an opening at the bottom.
2. The sample preparation kit with spoon according to claim 1, characterized in that, The opening at the bottom of the spoon is slit-shaped, and the width of the slit is less than 2.0 mm.
3. The sample preparation kit with spoon according to claim 1, characterized in that, The bottom of cavity B includes a downward recess, which is used for sample aggregation and enrichment.
4. The sample preparation kit with spoon according to claim 3, characterized in that, The downward concave portion at the bottom of cavity B is inverted conical in shape.
5. The sample preparation kit with spoon according to claim 1, characterized in that, The rotating part is provided with a protrusion near the spoon part, and the protrusion is used to drive the sample to rotate during the rotation process; The protrusions include protrusion A and protrusion B, which are distributed on both sides of the rotating part; the edges of the protrusions include protruding teeth. The end of the rotating part includes a protruding ring.
6. The sample preparation kit with spoon according to claim 1, characterized in that, The edge of the spoon includes a toothed portion; The serrated portion of the spoon is located at the lower edge of the spoon, or at the left or right edge of the spoon.
7. The sample preparation kit with spoon according to claim 1, characterized in that, The bottom of cavity A includes an upward protrusion, which is used to prevent the sample from accumulating at the center of the bottom. The upward protrusion at the bottom of cavity A is hemispherical.
8. The sample preparation kit with spoon according to claim 1, characterized in that, The cover covers all or part of the area above cavity A, but does not cover cavity B.
9. The sample preparation kit with spoon according to claim 1, characterized in that, The cover also includes an inlet / outlet hole; In the closed state, the cover covers the openings of cavity A and cavity B, and the inlet / outlet hole corresponds to the opening of cavity B, for the entry and exit of substances in cavity B.
10. The sample preparation kit with spoon according to claim 1, characterized in that, The filter baffle includes a filter screen with a mesh size greater than 60 mesh and less than 160 mesh; the cross-sectional area of cavity A is greater than the cross-sectional area of cavity B. Alternatively, the filter plate may include a narrow slit, the width of which is less than 0.3 mm.