A sampling device for use in a gastroenterology laboratory

By designing a sampling device that includes an elastic slide bar, a magnetic slider, and a linkage support rod, the problem of difficult excrement sampling in gastroenterology laboratory tests has been solved, achieving automated sampling and improving the convenience and efficiency for patients.

CN120959802BActive Publication Date: 2026-07-07THE SIXTH MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE SIXTH MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL
Filing Date
2025-10-17
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to overcome patients' psychological barriers when collecting excrement samples for gastroenterology tests, leading to difficulties in the sampling process.

Method used

A sampling device for gastroenterology laboratory tests was designed. The device uses an elastic slide rod to open and close the flat-top cover, and a magnetic slider and linkage support rod to realize the automatic opening and closing of the sampling space. The device is controlled by a manual pull-out component.

Benefits of technology

It enables patients to collect excrement samples from a distance using simple operations, overcoming psychological barriers and improving sampling efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120959802B_ABST
    Figure CN120959802B_ABST
Patent Text Reader

Abstract

The application belongs to the medical sampling technical field, and particularly relates to a sampling device for digestion internal medicine test, which comprises an outer layer sealing assembly, an automatic closing assembly, an inner layer sealing assembly, an elastic driving assembly and a manual pulling assembly, the outer layer sealing assembly is arranged on the manual pulling assembly, the inner layer sealing assembly is arranged on the manual pulling assembly, the inner layer sealing assembly is located in the inner part of the outer layer sealing assembly, the automatic closing assembly is arranged in the outer layer sealing assembly, and the elastic driving assembly is located between the inner layer sealing assembly and the outer layer sealing assembly. The application can drive the flat head cover to open and close through the expansion and contraction sliding of the elastic sliding rod, so that the technical effect that the flat head cover is first unfolded before the automatic closing assembly is stretched out is realized; the two-section expansion and contraction magnetic sliding blocks can avoid the interference of the unfolded flat head cover to the inner layer sealing assembly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of medical sampling technology, specifically referring to a sampling device for gastroenterology laboratory tests. Background Technology

[0002] Gastroenterology tests require fecal samples, but collecting fecal samples has always been a challenging problem, mainly because ordinary patients find it difficult to overcome psychological barriers to complete the sampling. Therefore, it is necessary to design an auxiliary sampling device that allows ordinary patients to collect fecal samples from a distance with simple operating procedures. Summary of the Invention

[0003] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a sampling device for gastroenterology laboratory tests. Through the extension and retraction of an elastic sliding rod, the flat-top cover can be opened and closed, achieving the technical effect of unfolding the flat-top cover before the automatic closing component extends. Two telescopic magnetic sliders prevent the unfolded flat-top cover from interfering with the inner closing component. The magnetic sliders automatically extend when the flat-top cover closes, closing the space at the center of the cover, and automatically retract when the cover unfolds. Through the linkage of the support rod, the sliding ring automatically pushes the hemispherical cover to unfold and close, thus opening and closing the sampling space.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes a sampling device for gastroenterology laboratory tests, including an outer sealing component, an automatic closing component, an inner sealing component, an elastic driving component, and a manual pull-out component. The outer sealing component is disposed on the manual pull-out component, the inner sealing component is disposed on the manual pull-out component, the inner sealing component is located inside the outer sealing component, the automatic closing component is disposed in the outer sealing component, and the elastic driving component is located between the inner sealing component and the outer sealing component.

[0005] Furthermore, the outer sealing assembly includes an outer chamber and a flat cap. The bottom of the outer chamber is provided with hinge grooves evenly distributed in an annular pattern. The flat cap is rotatably disposed in the hinge grooves. The inner side of the flat cap is provided with an inner step, and the bottom of the flat cap is provided with a sliding groove.

[0006] Furthermore, the automatic closing assembly includes a telescopic sleeve and an elastic slide rod. The telescopic sleeve is disposed on the elastic drive assembly, and the elastic slide rod is engaged and slidably disposed in the telescopic sleeve. The elastic slide rod is made of elastic material, and the inside of the telescopic sleeve is a sealed chamber. The elastic slide rod tends to extend under the thrust of the gas inside the telescopic sleeve.

[0007] By extending and retracting the elastic slide bar, the flat-top cover can be opened and closed, thus achieving the technical effect of unfolding the flat-top cover before the automatic closing component extends.

[0008] Preferably, the automatic closing assembly further includes a magnetic slider and an elastic pull cord. The magnetic slider is slidably disposed in a sliding groove. The magnetic slider is made of magnetic material. When the magnetic sliders are close to each other, they attract each other. The elastic pull cord is disposed between the magnetic slider and the sliding groove.

[0009] The two telescopic magnetic sliders prevent the unfolded flat cap from interfering with the inner sealing components; the magnetic sliders can automatically extend when the flat cap is closed to close the space in the center of the flat cap, and can automatically retract when the flat cap is unfolded.

[0010] Furthermore, the inner sealing assembly includes an inner chamber and a hemispherical cover. Several groups of hemispherical covers are evenly distributed in a ring. The hemispherical covers are located at the end of the inner chamber and are provided with a hinge.

[0011] Preferably, the inner sealing assembly further includes a rotating base ring and a linkage strut. The rotating base ring is fixed to the outside of the inner chamber. Rotating base platforms are evenly distributed in a ring on the rotating base ring. The hinge portion is rotatably disposed in the rotating base platform. The end of the linkage strut is disposed at the hinge portion.

[0012] The linkage of the struts enables the sliding ring to automatically push the hemispherical cover to open and close as it slides, thus opening and closing the sampling space.

[0013] Furthermore, the elastic drive assembly includes a sliding ring and a preload spring. The sliding ring is engaged and slidably disposed outside the inner cavity, and the preload spring is disposed between the sliding ring and the outer cavity. The top ends of the telescopic sleeve and the linkage support rod are disposed on the sliding ring.

[0014] Furthermore, the manual pull-out assembly includes a pull-out sleeve and a pull-out rod, the outer chamber is fixedly connected to the pull-out sleeve, the inner chamber is fixedly connected to the pull-out rod, and the pull-out rod is engaged and slidably disposed in the pull-out sleeve.

[0015] The movement of this device can be controlled by the relative sliding of the pull sleeve and the pull rod.

[0016] The pull-out sleeve is provided with a handle part one, and the pull-out rod is provided with a handle part two.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows:

[0018] (1) By extending and sliding the elastic slide bar, the flat top cover can be opened and closed, thereby achieving the technical effect of unfolding the flat top cover before the automatic closing component extends.

[0019] (2) The two telescopic magnetic sliders can prevent the flat cover from interfering with the inner sealing components after it is unfolded; the magnetic sliders can automatically extend when the flat cover is closed to close the space in the center of the flat cover, and can automatically retract when the flat cover is unfolded.

[0020] (3) Through the linkage of the linkage strut, the sliding ring can automatically push the hemispherical cover to open and close when it slides, so as to open and close the sampling space.

[0021] (4) The action of this device can be controlled by the relative sliding of the pull sleeve and the pull rod. Attached Figure Description

[0022] Figure 1 This is a perspective view of a sampling device for gastroenterology laboratory testing proposed in this invention;

[0023] Figure 2 This is a front view of a sampling device for gastroenterology laboratory tests proposed in this invention;

[0024] Figure 3 for Figure 2 A cross-sectional view along the cutting line AA;

[0025] Figure 4 for Figure 2 A cross-sectional view along the cutting line BB;

[0026] Figure 5 This is an exploded structural diagram of a sampling device for gastroenterology laboratory testing proposed in this invention.

[0027] Figure 6 for Figure 3 A magnified view of a section at point I;

[0028] Figure 7 for Figure 5 A magnified view of section II in the middle.

[0029] Among them, 1. outer sealing component, 2. automatic closing component, 3. inner sealing component, 4. elastic drive component, 5. manual pull-out component, 11. outer chamber, 12. flat-head cover, 21. telescopic sleeve, 22. elastic slide bar, 23. magnetic slider, 24. elastic pull rope, 31. inner chamber, 32. hemispherical cover, 33. rotating base ring, 34. linkage support rod, 41. sliding ring, 42. pre-tightening spring, 51. pull-out sleeve, 52. pull-out rod, 111. hinge groove, 121. inner step, 122. sliding groove, 321. hinge part, 331. rotating base, 511. handle part one, 521. handle part two.

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0033] like Figures 1-7 As shown, the present invention proposes a sampling device for gastroenterology laboratory tests, including an outer sealing component 1, an automatic closing component 2, an inner sealing component 3, an elastic driving component 4, and a manual pull-out component 5. The outer sealing component 1 is disposed on the manual pull-out component 5, the inner sealing component 3 is disposed on the manual pull-out component 5, the inner sealing component 3 is located inside the outer sealing component 1, the automatic closing component 2 is disposed in the outer sealing component 1, and the elastic driving component 4 is located between the inner sealing component 3 and the outer sealing component 1.

[0034] The outer sealing component 1 includes an outer chamber 11 and a flat cap 12. The bottom of the outer chamber 11 is provided with hinge grooves 111 evenly distributed in an annular pattern. The flat cap 12 is rotatably disposed in the hinge grooves 111. The inner side of the flat cap 12 is provided with an inner step 121, and the bottom of the flat cap 12 is provided with a sliding groove 122.

[0035] The automatic closing component 2 includes a telescopic sleeve 21 and an elastic slide rod 22. The telescopic sleeve 21 is mounted on the elastic drive component 4, and the elastic slide rod 22 is engaged and slidably mounted in the telescopic sleeve 21. The elastic slide rod 22 is made of elastic material, and the inside of the telescopic sleeve 21 is a sealed chamber. The elastic slide rod 22 tends to extend under the thrust of the gas inside the telescopic sleeve 21.

[0036] By extending and retracting the elastic slide bar 22, the flat cover 12 can be opened and closed, thereby achieving the technical effect of unfolding the flat cover 12 before the automatic closing component 2 extends.

[0037] The automatic closing assembly 2 also includes a magnetic slider 23 and an elastic pull rope 24. The magnetic slider 23 is slidably disposed in the sliding groove 122. The magnetic slider 23 is made of magnetic material. When the magnetic sliders 23 are close to each other, they attract each other. The elastic pull rope 24 is disposed between the magnetic slider 23 and the sliding groove 122.

[0038] The two telescopic magnetic sliders 23 can prevent the flat cover 12 from interfering with the inner sealing component 3 after it is unfolded; the magnetic sliders 23 can automatically extend when the flat cover 12 is closed to close the space in the center of the flat cover 12, and can automatically retract when the flat cover 12 is unfolded.

[0039] The inner sealing component 3 includes an inner chamber 31 and a hemispherical cover 32. Several groups of hemispherical covers 32 are evenly distributed in a ring. The hemispherical cover 32 is located at the end of the inner chamber 31 and has a hinge part 321.

[0040] The inner sealing assembly 3 also includes a rotating base ring 33 and a linkage support rod 34. The rotating base ring 33 is fixed to the outside of the inner chamber 31. Rotating base platforms 331 are evenly distributed in a ring on the rotating base ring 33. The hinge part 321 is rotatably disposed in the rotating base platform 331. The end of the linkage support rod 34 is disposed at the hinge part 321.

[0041] The linkage of the linkage strut 34 enables the sliding ring 41 to automatically push the hemispherical cover 32 to open and close when it slides, thereby opening and closing the sampling space.

[0042] The elastic drive assembly 4 includes a sliding ring 41 and a preload spring 42. The sliding ring 41 is engaged and slidably disposed outside the inner cavity 31. The preload spring 42 is disposed between the sliding ring 41 and the outer cavity 11. The top ends of the telescopic sleeve 21 and the linkage support rod 34 are disposed on the sliding ring 41.

[0043] The manual pull-out assembly 5 includes a pull-out sleeve 51 and a pull-out rod 52. The outer chamber 11 is fixedly connected to the pull-out sleeve 51, and the inner chamber 31 is fixedly connected to the pull-out rod 52. The pull-out rod 52 is engaged and slidably disposed in the pull-out sleeve 51.

[0044] The operation of this device can be controlled by the relative sliding of the pull sleeve 51 and the pull rod 52.

[0045] The pull sleeve 51 is provided with a handle part 511, and the pull rod 52 is provided with a handle part 521.

[0046] In practical use, the user first needs to use the pull sleeve 51 as a base and push the pull rod 52 downward. Since the pre-tension spring 42 is in a compressed state in the initial state, the sliding ring 41 will slide along with the inner cavity 31 in the initial stage when the pull rod 52 pushes the inner cavity 31 to slide. During this stage, the elastic potential energy of the pre-tension spring 42 gradually decreases.

[0047] During the sliding process of the sliding ring 41, the flat cover 12 will be pushed open by the telescopic sleeve 21 when the elastic slide rod 22 is extended. After the flat cover 12 is opened, the magnetic slider 23 loses its magnetic attraction and will retract under the elastic force of the elastic pull rope 24.

[0048] Then, the hemispherical cover 32 is gradually unfolded by the linkage strut 34. During the unfolding stage of the hemispherical cover 32, since the flat cover 12 has been fully unfolded, the sliding ring 41 is allowed to continue sliding by the retraction of the elastic slide rod 22.

[0049] After the flat-top cover 12 is unfolded, the hemispherical cover 32 unfolds, and the inner chamber 31 also extends out of the outer chamber 11 as a whole. At this time, the target position can be sampled. The lowest point of the entire device is the lower end of the inner chamber 31, so sampling can be carried out conveniently.

[0050] During sampling, a rod can be placed at the center of the hemispherical cover 32. As long as a small amount of excrement can adhere to the rod, the sampling can be completed.

[0051] After sampling is completed, the pull rod 52 is pulled upwards based on the pull sleeve 51, and the device works in the reverse order; first, the inner chamber 31 will retract into the outer chamber 11, and at the same time the hemispherical cover 32 will close to seal the sample.

[0052] When the inner sealing component 3 is nearly fully retracted, the flat cover 12 also closes. After the flat cover 12 closes, the magnetic slider 23 extends under the action of magnetic attraction, achieving a complete seal on the bottom of the outer chamber 11.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sampling device for gastroenterology laboratory tests, characterized in that: It includes an outer sealing component (1), an automatic closing component (2), an inner sealing component (3), an elastic drive component (4), and a manual pull-out component (5). The outer sealing component (1) is disposed on the manual pull-out component (5), the inner sealing component (3) is disposed on the manual pull-out component (5), the inner sealing component (3) is located inside the outer sealing component (1), the automatic closing component (2) is disposed in the outer sealing component (1), and the elastic drive component (4) is located between the inner sealing component (3) and the outer sealing component (1). The automatic closing assembly (2) includes a telescopic sleeve (21) and an elastic slide bar (22). The outer sealing assembly (1) includes an outer chamber (11) and a flat cap (12). The bottom of the outer chamber (11) is provided with hinge grooves (111) evenly distributed in an annular pattern. The flat cap (12) is rotatably disposed in the hinge grooves (111). The inner side of the flat cap (12) is provided with an inner step (121). The bottom of the flat cap (12) is provided with a sliding groove (122). The automatic closing assembly (2) also includes a magnetic slider (23) and an elastic pull rope (24). The magnetic slider (23) is slidably disposed in the sliding groove (122). The magnetic slider (23) is made of magnetic material. When the magnetic sliders (23) are close to each other, they attract each other. The elastic pull rope (24) is disposed between the magnetic slider (23) and the sliding groove (122). The inner sealing component (3) includes an inner chamber (31) and a hemispherical cover (32). Several groups of hemispherical covers (32) are evenly distributed in a ring. The hemispherical covers (32) are located at the end of the inner chamber (31). The hemispherical covers (32) are provided with a hinge (321). The inner sealing assembly (3) further includes a rotating base ring (33) and a linkage support rod (34). The rotating base ring (33) is fixed to the outside of the inner chamber (31). Rotating base platforms (331) are evenly distributed in a ring on the rotating base ring (33). The hinge part (321) is rotatably disposed in the rotating base platform (331). The end of the linkage support rod (34) is disposed at the hinge part (321). The elastic drive assembly (4) includes a sliding ring (41) and a preload spring (42). The sliding ring (41) is engaged and slidably disposed outside the inner cavity (31). The preload spring (42) is disposed between the sliding ring (41) and the outer cavity (11). The top ends of the telescopic sleeve (21) and the linkage support rod (34) are disposed on the sliding ring (41).

2. The sampling device for gastroenterology laboratory tests according to claim 1, characterized in that: The telescopic sleeve (21) is mounted on the elastic drive assembly (4), and the elastic slide rod (22) is engaged and slidably mounted in the telescopic sleeve (21). The elastic slide rod (22) is made of elastic material, and the inside of the telescopic sleeve (21) is a sealed chamber. The elastic slide rod (22) tends to extend under the thrust of the gas inside the telescopic sleeve (21).

3. A sampling device for gastroenterology laboratory tests according to claim 2, characterized in that: The manual pull-out assembly (5) includes a pull-out sleeve (51) and a pull-out rod (52). The outer chamber (11) is fixed to the pull-out sleeve (51), and the inner chamber (31) is fixed to the pull-out rod (52). The pull-out rod (52) is engaged and slidably disposed in the pull-out sleeve (51).

4. A sampling device for gastroenterology laboratory testing according to claim 3, characterized in that: The pull sleeve (51) is provided with a handle part one (511), and the pull rod (52) is provided with a handle part two (521).