Excretion substance collecting device for human body substance balance experiment

By designing a fecal and urine collection container and driving mechanism, the problem of urine and feces mixing was solved, and the individual and lossless collection of samples was achieved, which is suitable for human body material balance experiments.

CN224235446UActive Publication Date: 2026-05-15INST OF RADIATION MEDICINE CHINESE ACADEMY OF MEDICAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INST OF RADIATION MEDICINE CHINESE ACADEMY OF MEDICAL SCI
Filing Date
2025-04-02
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In human body mass balance experiments, urine and feces are easily mixed when excreted simultaneously, which makes subsequent biological sample processing difficult and affects test results.

Method used

An excrement collection device was designed, comprising a fecal collection container and a urine collection container, which are respectively set on a container rack. It is equipped with a fecal bag and a urine collection component. Urine is collected separately using a catheter and a tapered guide tube. The seat height is adjusted by a drive mechanism to accommodate different people.

Benefits of technology

It enables the separate collection of feces and urine, avoiding mixing, ensuring sample integrity and accuracy, and meeting the needs of different populations.

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Abstract

The utility model discloses an excreted substance collecting device for a human body substance balance experiment. The excreted substance collecting device comprises a container frame; the excrement collecting container is arranged on the container frame and is used for independently collecting excrement; and the urine collection container is arranged on the container rack, is positioned at the front part of the excrement collection container, and is used for independently collecting urine. According to the excrement and urine collection device, excrement or urine can be independently collected, excrement and urine can be simultaneously collected, excrement and urine samples can be respectively collected, the effects of no mixing and no loss of complete collection can be achieved, the integrity and accuracy of the samples are ensured, and therefore the excrement and urine collection device can be better applied to a human body material balance experiment. The seat plate can be lifted, so that the height of the device can be adjusted, and different people can use the device conveniently.
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Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an excretory substance collection device for human body material balance experiments. Background Technology

[0002] Human body material balance research, as an important part of clinical pharmacology research for innovative drugs, is mainly used to quantitatively and comprehensively describe the absorption, distribution, metabolism and excretion characteristics of drugs in the human body, clarify the elimination pathways and contributions of drugs in the human body, support the design of confirmatory clinical studies, and provide important evidence for the safety and efficacy evaluation of innovative drugs in clinical use.

[0003] In this experiment, the collection of biological samples is a crucial part of the entire experimental process. Since urine and feces are often excreted simultaneously during human excretion, small amounts of urine are frequently found mixed in with feces in routine testing experiments. This poses difficulties for subsequent biological sample processing and can affect the results of biological sample testing.

[0004] Therefore, it is necessary to provide a solution that allows for the separate collection of feces and urine. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an excretory substance collection device for human body material balance experiments, which addresses the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an excretory substance collection device for human body material balance experiments, comprising:

[0007] Container rack;

[0008] A feces collection container, which is mounted on the container rack, is used to collect feces individually;

[0009] And a urine collection container, which is disposed on the container rack and located in front of the feces collection container, for collecting urine separately.

[0010] Preferably, the volume of the fecal collection container is not less than 2000 mL.

[0011] Preferably, the fecal collection container is conical.

[0012] Preferably, the excrement collection device for human body material balance experiments further includes a feces bag for collecting feces in conjunction with the feces collection container and a urine collection component for collecting urine in the urine collection container.

[0013] The urine collection assembly includes a urine bag body disposed within the urine collection container, a catheter connected to the urine bag body, a tapered guide tube segment detachably connected to the urine tube, and a urine collection cover connected to the upper end of the tapered guide tube segment.

[0014] Alternatively, the urine collection assembly includes a catheter, a tapered guide tube detachably connected to the urine tube, a urine collection hood connected to the upper end of the tapered guide tube, and a urine container. The bottom of the urine collection container has an interface through which the catheter passes to connect to the urine container. When the urine sample is held in the urine container, the interface allows urine to be easily introduced directly into the container via the catheter.

[0015] Preferably, the urine collection hood has a collection hole in the middle, and the upper end of the tapered guide tube section is connected to the collection hole;

[0016] The bottom end of the tapered drainage tube section is provided with an insertion section, and the upper end of the urinary catheter is provided with an insertion port for the insertion section to be inserted.

[0017] Preferably, the container rack includes a base frame, an intermediate support fixedly connected to the base frame, a seat plate that can be lifted and lowered on the base frame, and a drive mechanism for driving the seat plate to lift and lower.

[0018] Preferably, the seat has a collection port in the middle, and the feces collection container and urine collection container are both located at the bottom of the seat and connected to the area below the collection port.

[0019] Preferably, armrests are provided on both sides of the collection port on the seat, and a backrest is provided at the rear end of the armrests.

[0020] Preferably, the drive mechanism includes a motor mounted on the intermediate support, a rotating shaft driven by the motor, a lead screw shaft segment fixedly connected to the upper end of the rotating shaft, a lead screw sleeve fitted onto the lead screw shaft segment, and a drive plate connected to the seat plate. The drive plate has a mounting hole, the lead screw sleeve is fitted into the mounting hole and fixedly connected to the drive plate, and the drive plate is also provided with a protective cover for accommodating the lead screw shaft segment.

[0021] Preferably, the bottom sides of the seat are provided with lifting guide plates, the middle support is provided with a guide support plate, the guide support plate is provided with a guide slide rail along the vertical direction, the guide slide rail is provided with a guide slider, and the lifting guide plate is fixedly connected to the guide slider.

[0022] The beneficial effects of this utility model are:

[0023] This invention provides an excretory substance collection device for human body material balance experiments. It can collect feces or urine separately, or collect feces and urine simultaneously and collect feces and urine samples separately, achieving the effect of no mixing and complete collection without loss, ensuring the integrity and accuracy of the samples, and thus being better applied to human body material balance experiments.

[0024] This invention enables the seat to be raised and lowered, thereby adjusting the height of the device and making it suitable for different users. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the excrement collection device used in the human body material balance experiment of Example 1.

[0026] Figure 2 This is a side view of the excretory substance collection device used in the human body material balance experiment of Example 1;

[0027] Figure 3 This is a top view of the excretory substance collection device used in the human body material balance experiment of Example 1;

[0028] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0029] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0030] Figure 6 This is a schematic diagram of the structure of the fecal bag in Example 1;

[0031] Figure 7 This is a schematic diagram of the urine collection assembly in Example 1 (the cannula segment and the cannula port are connected).

[0032] Figure 8 This is a schematic diagram of the urine collection assembly in Example 1 (with the catheter segment removed from the catheter port).

[0033] Figure 9 and Figure 10 Schematic diagrams of two other shapes of urine collection covers;

[0034] Figure 11 This is a schematic diagram of the urine collection assembly in Example 2;

[0035] Figure 12 This is a side view of the excretory substance collection device used in the human body material balance experiment of Example 2.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1—Container rack; 11—Base frame; 12—Intermediate support; 13—Seat plate; 14—Drive mechanism; 121—Guide support plate; 122—Guide slide rail; 123—Guide slider; 131—Collection port; 132—Armrest; 133—Backrest; 134—Lifting guide plate; 135—Fixing groove; 136—Fixing pressure ring; 141—Motor; 142—Rotating shaft; 143—Lead screw shaft section; 144—Lead screw sleeve; 145—Drive plate; 146—Mounting hole; 147—Protective cover;

[0038] 2—Feces collection container;

[0039] 3—Urine collection container;

[0040] 4—feces bag; 41—lock;

[0041] 5—Urine collection assembly; 51—Urine bag body; 52—Urine catheter; 53—Conical drainage tube section; 54—Urine collection cover; 55—Insertion tube section; 56—Urine bucket; 521—Insertion tube port; 541—Collection hole. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the embodiments, so that those skilled in the art can implement it based on the description.

[0043] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0044] Example 1

[0045] An excretory substance collection device for human body material balance experiments, comprising:

[0046] Container rack 1;

[0047] Fecal collection container 2, which is set on container rack 1, is used to collect feces separately;

[0048] The urine collection container 3 is set on the container rack 1 and located in front of the feces collection container 2, and is used to collect urine separately;

[0049] A feces bag 4 is used to collect feces in a feces collection container 2 and a urine collection component 5 is used to collect urine in a urine collection container 3.

[0050] The volume of the fecal collection container 2 is selected based on the range of normal subjects' stool volume. In this embodiment, the volume of the fecal collection container 2 is not less than 2000mL.

[0051] In this embodiment, the fecal collection container 2 is conical, which facilitates the fitting of the fecal collection bag into the container and ensures that the feces are easily collected to the bottom of the collection bag. The container is made of a material with a certain degree of rigidity to support the collection bag. The material can be plastic, ceramic, metal, etc., and there are no specific limitations in this invention.

[0052] In use, the feces bag 4 is fitted snugly inside the feces collection container 2. After feces collection is complete, the feces bag 4 is removed. In this embodiment, the feces bag 4 has a locking clasp 41 at its upper edge. After the subject finishes defecating, the feces collection is removed, and the locking clasp 41 is locked to prevent leakage. The locking clasp 41 adopts a conventional form, such as a zipper, buckle, or Velcro, as long as it can lock the opening of the feces bag 4. This utility model does not specifically limit its structural form.

[0053] In some optional embodiments, the fecal bag 4 is made of transparent material, allowing observation of the shape and quantity of the subject's feces. Its shape is designed according to the shape of the fecal collection container 2, so that it can fit the inner wall of the fecal collection container 2. The material of the fecal bag 4 meets the requirements and has a smooth inner surface, with a certain degree of flexibility and plasticity. Conventional plastic materials can meet the above functions.

[0054] Furthermore, to facilitate the installation of the feces bag 4, in some optional embodiments, refer to Figure 5 The feces collection container 2 has an annular fixing groove 135 on the outer periphery of its upper opening, and a fixing ring 136 is fitted inside the fixing groove 135. In use, first remove the fixing ring 136, put the feces bag 4 into the feces collection container 2, then turn the opening of the feces bag 4 outward to cover the fixing groove 135, and then press the fixing ring 136 into the fixing groove 135, so that the opening of the feces bag 4 is fixed between the fixing ring 136 and the fixing groove 135. After the feces collection is completed, remove the fixing ring 136 and the feces bag 4 in sequence.

[0055] In this embodiment, the urine collection assembly 5 includes a urine bag body 51 disposed within the urine collection container 3, a catheter 52 connected to the urine bag body 51, a tapered guide tube section 53 detachably connected to the urine tube, and a urine collection cover 54 connected to the upper end of the tapered guide tube section 53. The urine collection cover 54 has a collection hole 541 in the middle, and the upper end of the tapered guide tube section 53 communicates with the collection hole 541; the bottom end of the tapered guide tube section 53 is provided with an insertion tube section 55, and the upper end of the catheter 52 has an insertion port 521 for the insertion tube section 55 to be inserted.

[0056] Based on human physiological conditions and body position requirements, the urine collection container 3 is located at the front of the feces collection container 2. During use, the insertion tube segment 55 is inserted into the insertion port 521, connecting the urinary catheter 52 to the conical drainage tube segment 53. Then, the urine bag body 51 is placed inside the urine collection container 3. The subject places the urine collection cover 54 against their urethral opening for urine collection. The collected urine flows through the conical drainage tube segment 53 and the urinary catheter 52 into the urine bag body 51. After collection, the urine bag body 51 is removed from the urine collection container 3. Subsequently, the insertion tube segment 55 is pulled out of the insertion port 521, and the insertion port 521 is sealed using a cap, piston, or other conventional method for subsequent experiments. The removed urine collection cover 54 and conical drainage tube segment 53 can be discarded or reused after cleaning and disinfection. In some optional embodiments, the urine collection cover 54 is made of medical-grade soft silicone and can be available in various sizes according to gender and age to meet the needs of different groups. The urine collection cover 54 is made of soft material and its shape allows it to fit snugly against the urethra, ensuring a good seal and preventing urine leakage. Its shape can be entirely arc-shaped, such as... Figure 7 and Figure 8 As shown; in some alternative embodiments, it can also be other shapes, for example Figure 9 (Side view) and Figure 10 (Front view)

[0057] In this embodiment, a collection port 131 is provided in the middle of the seat plate 13, and the feces collection container 2 and the urine collection container 3 are both located at the bottom of the seat plate 13 and connected to the area below the collection port 131.

[0058] In this embodiment, feces or urine can be collected separately or simultaneously. During simultaneous collection, the subject sits above the collection port 131, the feces bag 4 and urine collection component 5 are installed, and the subject wears the urine collection cover 54. The subject then defecates and urinates, thus simultaneously collecting feces and urine. The collected feces and urine samples are collected separately, achieving the effect of no mixing and complete collection without loss.

[0059] In this embodiment, the container rack 1 includes a base frame 11, an intermediate support 12 fixedly connected to the base frame 11, a seat plate 13 that can be raised and lowered on the base frame 11, and a drive mechanism 14 for driving the seat plate 13 to rise and fall.

[0060] In this embodiment, armrests 132 are provided on both sides of the collection port 131 on the seat 13, and a backrest 133 is provided at the rear end of the armrests 132.

[0061] In this embodiment, the drive mechanism 14 includes a motor 141 mounted on the intermediate support 12, a rotating shaft 142 driven by the motor 141, a lead screw shaft section 143 fixedly connected to the upper end of the rotating shaft 142, a lead screw sleeve 144 fitted onto the lead screw shaft section 143, and a drive plate 145 connected to the seat plate 13. The drive plate 145 has a mounting hole 146, and the lead screw sleeve 144 is fitted into the mounting hole 146 and fixedly connected to the drive plate 145. The drive plate 145 is also provided with a protective cover 147 for accommodating the lead screw shaft section 143.

[0062] In this embodiment, lifting guide plates 134 are provided on both sides of the bottom of the seat plate 13, and a guide support plate 121 is provided on the middle support 12. A guide slide rail 122 is provided on the guide support plate 121 along the vertical direction, and a guide slider 123 is provided on the guide slide rail 122. The lifting guide plate 134 and the guide slider 123 are fixedly connected.

[0063] In this embodiment, the seat 13 can be raised and lowered to adjust its height, making it suitable for different users. The lifting and adjusting principle is as follows: the motor 141 drives the rotating shaft 142 to rotate, which in turn drives the lead screw shaft section 143 to rotate. The vertical displacement of the lead screw shaft is restricted, causing the lead screw sleeve 144, which is connected to the lead screw shaft, to rotate while maintaining a vertical alignment. This allows the drive plate 145, which is fixed to the lead screw sleeve 144, to move up and down, ultimately achieving the raising and lowering of the seat 13. During the lifting and lowering process, the guide slider 123 slides on the guide rail 122, providing vertical guidance.

[0064] Example 2

[0065] Unlike Example 1, referring to Figure 11 and Figure 12 In this embodiment, the urine collection assembly 5 does not include the urine bag body 51, but instead uses a urine bucket 56; the urine collection container 3 is provided with an opening, through which the catheter 52 passes to guide the collected urine into the external urine bucket 56.

[0066] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details.

Claims

1. A device for collecting excrement in human body material balance experiments, characterized in that, include: Container rack; A feces collection container, which is mounted on the container rack, is used to collect feces individually; And a urine collection container, which is disposed on the container rack and located in front of the feces collection container, for collecting urine separately.

2. The excrement collection device for human body material balance experiments according to claim 1, characterized in that, The volume of the fecal collection container shall not be less than 2000 mL.

3. The excrement collection device for human body material balance experiments according to claim 2, characterized in that, The feces collection container is conical.

4. The excrement collection device for human body material balance experiments according to claim 3, characterized in that, It also includes a feces bag for use in conjunction with the feces collection container to collect feces, and a urine collection assembly for use in the urine collection container to collect urine; The urine collection assembly includes a urine bag body disposed within the urine collection container, a catheter connected to the urine bag body, a tapered guide tube segment detachably connected to the urine tube, and a urine collection cover connected to the upper end of the tapered guide tube segment. Alternatively, the urine collection assembly includes a catheter, a tapered guide tube detachably connected to the urine tube, a urine collection cover connected to the upper end of the tapered guide tube, and a urine bucket, wherein the bottom end of the urine collection container has an interface through which the catheter passes to connect to the urine bucket.

5. The excrement collection device for human body material balance experiments according to claim 4, characterized in that, The urine collection hood has a collection hole in the middle, and the upper end of the tapered guide tube section is connected to the collection hole; The bottom end of the tapered drainage tube section is provided with an insertion section, and the upper end of the urinary catheter is provided with an insertion port for the insertion section to be inserted.

6. The excrement collection device for human body material balance experiments according to claim 1, characterized in that, The container rack includes a base frame, an intermediate support fixedly connected to the base frame, a seat plate that can be raised and lowered on the base frame, and a drive mechanism for driving the seat plate to rise and fall.

7. The excrement collection device for human body material balance experiments according to claim 6, characterized in that, The seat has a collection port in the middle, and the feces collection container and urine collection container are both located at the bottom of the seat and connected to the area below the collection port.

8. The excrement collection device for human body material balance experiments according to claim 7, characterized in that, The seat is provided with armrests on both sides of the collection port, and a backrest is provided at the rear end of the armrests.

9. The excrement collection device for human body material balance experiments according to claim 6, characterized in that, The drive mechanism includes a motor mounted on the intermediate support, a rotating shaft driven by the motor, a lead screw shaft segment fixedly connected to the upper end of the rotating shaft, a lead screw sleeve fitted onto the lead screw shaft segment, and a drive plate connected to the seat plate. The drive plate has a mounting hole, and the lead screw sleeve is fitted into the mounting hole and fixedly connected to the drive plate. The drive plate is also provided with a protective cover for accommodating the lead screw shaft segment.

10. The excretory substance collection device for human body material balance experiments according to claim 9, characterized in that, The bottom two sides of the seat are provided with lifting guide plates, the middle bracket is provided with a guide support plate, the guide support plate is provided with a guide slide rail along the vertical direction, the guide slide rail is provided with a guide slider, and the lifting guide plate is fixedly connected to the guide slider.