A urinary system stone course explanation model

By designing a model for explaining the movement of urinary system stones that combines a support plate and a sliding column, the problem of existing devices being unable to dynamically display the movement path of stones is solved. This model enables continuous movement of stones within the urinary system and tactile interaction, thereby improving learners' understanding and teaching effectiveness.

CN224328463UActive Publication Date: 2026-06-05THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
Filing Date
2025-07-15
Publication Date
2026-06-05

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Abstract

A urinary system calculus journey explanation model effectively solves the problem of inconvenient use of existing urinary system calculus journey explanation devices; including a support plate, the left and right sides of the front end of the support plate are respectively provided with a renal pelvis model, the front end of the support plate is provided with a bladder model located below the two renal pelvis models, the left and right sides of the front end of the support plate are respectively provided with ureter models located between the renal pelvis models and the bladder model, the upper end of the ureter model is communicated with the corresponding side of the renal pelvis model and the lower end is communicated with the bladder model, the lower end of the bladder model is communicated with a urethra model, a Y-shaped moving groove is opened on the support plate, the renal pelvis model, the ureter model, the bladder model and the urethra model are provided with a communication groove communicated with the moving groove, the left and right sides of the moving groove are respectively provided with front and rear axial sliding columns, and the front end of the sliding column is detachably connected with a calculus model; this structure is simple, novel in design, convenient to use and high in practicality.
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Description

Technical Field

[0001] This utility model relates to the field of popular science teaching technology, and in particular to a model for explaining the path of urinary system stones. Background Technology

[0002] Urinary tract stones (including kidney stones, ureteral stones, bladder stones, and urethral stones) are common and frequently occurring clinical diseases. Understanding the formation, movement, impaction, and expulsion of stones within the urinary system is crucial for medical student teaching, healthcare worker training, and patient health education. Currently, the explanation and demonstration of stone progression mainly rely on the following methods: 1. Static anatomical models, using isolated models of the kidney, ureter, bladder, and urethra. 2. Two-dimensional images and animations: utilizing wall charts, textbook illustrations, or computer animations (PPT, videos).

[0003] However, the above two demonstration and explanation methods have the following problems in actual operation: 1. Although static anatomical models can show the anatomical structure of various organs, they cannot dynamically and continuously demonstrate the complete movement path and process of a stone from the renal pelvis, down the ureter, into the bladder, and finally out through the urethra. The position of the stone is fixed, lacking the dynamic representation of the "journey". 2. Although two-dimensional images and animations can show the concept of stone movement, they lack spatial three-dimensionality and are difficult to realistically present the movement trajectory of the stone in complex three-dimensional tubes and the narrow parts it may encounter. At the same time, they lack tactile interaction, and learners are passive observers who cannot personally operate and feel the "resistance" or "impact" of the stone moving in the tube. For learners with weak spatial imagination or ordinary patients, understanding the dynamic process is difficult. Utility Model Content

[0004] In view of the above situation and in order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a model for explaining the path of urinary system stones, which effectively solves the problem of inconvenience in using existing devices for explaining the path of urinary system stones.

[0005] The technical solution is as follows: This utility model includes a support plate, with renal pelvis models on the left and right sides of the front end of the support plate, a bladder model located below the two renal pelvis models at the front end of the support plate, and ureter models located between the renal pelvis models and the bladder model on the left and right sides of the front end of the support plate. The upper end of the ureter model is connected to the corresponding renal pelvis model and the lower end is connected to the bladder model. The lower end of the bladder model is connected to the urethra model. A Y-shaped moving groove is opened on the support plate. A connecting groove is opened on the renal pelvis model, ureter model, bladder model and urethra model to communicate with the moving groove. A sliding column with a front-to-back axial direction is provided on the left and right sides of the moving groove. A stone model is detachably connected to the front end of the sliding column.

[0006] Preferably, the rear end of the stone is provided with a stud that is threadedly connected to the sliding column.

[0007] Preferably, the rear end of the slide column is coaxially provided with a handle.

[0008] Preferably, baffles are provided on both the front and rear sides of the sliding column.

[0009] Preferably, a limiting plate located behind the support plate is slidably connected to the sliding column, and limiting posts that can contact the support plate are respectively provided on the left and right sides of the front end of the limiting plate, and a spring is provided between the limiting plate and the handle.

[0010] Preferably, the ureter model is made of rubber.

[0011] Preferably, the lower end of the support plate is provided with a base plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: it allows the instructor or learner to manipulate the stone model to continuously demonstrate the complete movement path and process of the stone from top to bottom along the entire urinary system, starting from the renal pelvis, descending through the ureter, entering the bladder, and finally being expelled through the urethra. At the same time, it has a strong sense of spatial three-dimensionality, allows learners to operate it themselves, has a strong tactile interaction, deepens the learner's understanding, and achieves better teaching objectives. Attached Figure Description

[0013] Figure 1 This is the main view axonometric drawing of this utility model.

[0014] Figure 2 This is a full-section top-view axonometric drawing of this utility model.

[0015] Figure 3 This is a full-section top-view axonometric drawing of this utility model.

[0016] Figure 4 This is the rear-view axonometric drawing of this utility model.

[0017] Figure 5 This is a utility model Figure 2 A magnified view of A in the middle.

[0018] Figure 6 This is a utility model Figure 4 A magnified view of B in the middle.

[0019] Figure label:

[0020] 1. Support plate; 2. Renal pelvis model; 3. Bladder model; 4. Ureteral model; 5. Urethral model; 6. Moving groove; 7. Connecting groove; 8. Sliding column; 9. Stone model; 10. Stud; 11. Handle; 12. Baffle; 13. Limiting plate; 14. Limiting post; 15. Spring; 16. Base plate. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the implementations of the base model disclosed below.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Depend on Figures 1 to 6 The device includes a support plate 1, with renal pelvis models 2 on the left and right sides of the front end of the support plate 1, a bladder model 3 located below the two renal pelvis models 2 at the front end of the support plate 1, and ureter models 4 located between the renal pelvis models 2 and the bladder model 3 on the left and right sides of the front end of the support plate 1, respectively. The upper end of the ureter model 4 is connected to the corresponding renal pelvis model 2 and the lower end is connected to the bladder model 3. The lower end of the bladder model 3 is connected to the urethra model 5. A Y-shaped moving groove 6 is opened on the support plate 1. A connecting groove 7 is opened on the renal pelvis model 2, ureter model 4, bladder model 3 and urethra model 5, which is connected to the moving groove 6. A sliding column 8 with a front-to-back axial direction is provided on the left and right sides of the moving groove 6, and a stone model 9 is detachably connected to the front end of the sliding column 8.

[0025] In order to detach and connect the stone model 9 to the sliding column 8, the rear end of the stone is provided with a stud 10 that is threadedly connected to the sliding column 8.

[0026] To facilitate movement by the demonstrator, a handle 11 is coaxially provided at the rear end of the sliding column 8.

[0027] To prevent the sliding column 8 from moving back and forth, baffles 12 are provided on the front and rear sides of the sliding column 8.

[0028] To facilitate the fixation and positioning of the stone model 9, a limiting plate 13 located behind the support plate 1 is slidably connected to the sliding column 8. Limiting posts 14 that can contact the support plate 1 are respectively provided on the left and right sides of the front end of the limiting plate 13. A spring 15 is provided between the limiting plate 13 and the handle 11.

[0029] For ease of demonstration purposes, the ureter model 4 is made of rubber.

[0030] For ease of support, the support plate 1 is provided with a base plate 16 at its lower end.

[0031] When using this utility model, first move the support plate 1 to a suitable explanation position. When it is necessary to explain the stone's journey, you can choose to explain the left or right side. Then, the explainer holds the handle 11 and pulls the limiting plate 13 backward. The limiting plate 13 drives the limiting column 14 to move backward and squeezes the spring 15. After the limiting column 14 moves backward a certain distance, the front end disengages from the rear end of the support plate 1. At this time, the fixed limiting of the sliding column 8 is released. Then, the sliding column 8 can be moved downward along the trajectory of the moving groove 6, thereby driving the stone model 9 downward. The learner can clearly observe the stone's journey from the front. After the stone model 9 moves downward a certain distance from the renal pelvis model 2, it reaches the ureter model 4.

[0032] When it is necessary to explain the knowledge of a certain part in detail, release the handle 11. Due to the restoring force of the spring 15, the limiting plate 13 and the limiting post 14 move forward. After the limiting post 14 moves forward a certain distance, it contacts the rear end of the support plate 1 and achieves pressing and friction fixation on the support plate 1, thereby achieving the fixation and limitation of the stone model 9. At this time, the knowledge in the ureter can be explained in detail. During the movement, the baffle 12 can prevent the sliding column 8 from moving back and forth. When it is necessary to continue the movement, pull the limiting plate 13 backward again to release the fixation and limit, and continue to move along the trajectory of the moving groove 6, moving down from the ureter model 4 to the bladder model 3, and then down to the urethra model 5, realizing the demonstration and explanation of the stone's journey in the entire urinary system.

[0033] Compared with the prior art, the beneficial effects of this utility model are as follows: The included renal pelvis model, ureter model, bladder model, and stone model allow the instructor or learner to manipulate the stone model to continuously demonstrate the complete movement path and process of the stone from top to bottom along the entire urinary system, starting from the renal pelvis, descending through the ureter, entering the bladder, and finally being expelled through the urethra. At the same time, it has a strong sense of spatial three-dimensionality, allowing learners to operate it themselves, providing a strong tactile interaction, deepening learners' understanding, and achieving better teaching objectives. This structure is simple, novel in design, convenient to use, and highly practical.

[0034] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model.

[0035] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A model for explaining the path of urinary system stones, comprising a support plate (1), characterized in that, The front end of the support plate (1) is provided with a renal pelvis model (2) on the left and right sides respectively. The front end of the support plate (1) is provided with a bladder model (3) located below the two renal pelvis models (2). The front end of the support plate (1) is provided with a ureter model (4) located between the renal pelvis model (2) and the bladder model (3) respectively. The upper end of the ureter model (4) is connected to the corresponding renal pelvis model (2) and the lower end is connected to the bladder model (3). The lower end of the bladder model (3) is connected to the urethra model (5). A Y-shaped moving groove (6) is opened on the support plate (1). A connecting groove (7) is opened on the renal pelvis model (2), the ureter model (4), the bladder model (3) and the urethra model (5) connected to the moving groove (6). The left and right sides of the moving groove (6) are provided with a sliding column (8) with a front and rear axis respectively. The front end of the sliding column (8) is detachably connected to a stone model (9).

2. The urinary system stone pathology explanation model according to claim 1, characterized in that, The stone model (9) has a stud (10) at the rear end that is threadedly connected to the sliding column (8).

3. The urinary system stone pathology explanation model according to claim 2, characterized in that, The rear end of the slide column (8) is coaxially provided with a handle (11).

4. The urinary system stone pathology explanation model according to claim 1, characterized in that, The sliding column (8) is provided with baffles (12) on the front and rear sides respectively.

5. The urinary system stone pathology explanation model according to claim 1, characterized in that, The sliding column (8) is slidably connected to a limiting plate (13) located behind the support plate (1). The left and right sides of the front end of the limiting plate (13) are respectively provided with limiting posts (14) that can contact the support plate (1). A spring (15) is provided between the limiting plate (13) and the handle (11).

6. The urinary system stone pathology explanation model according to claim 1, characterized in that, The ureter model (4) is made of rubber.

7. The urinary system stone pathology explanation model according to claim 1, characterized in that, The support plate (1) has a base plate (16) at its lower end.