Intestinal stoma teaching model
By adjusting the shape of the rubber layer and the number of extension blocks, and combining various teaching models, the problem of fixing the shape of the enterostomy was solved, and the simulation of various stoma shapes was realized, thus improving teaching efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING DRUM TOWER HOSPITAL
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-17
AI Technical Summary
Existing stoma teaching models have fixed stoma shapes and cannot simulate various stoma shapes, resulting in a need for more teaching models.
By adjusting the shape of the rubber layer through airbag inflation or deflation, and by adjusting the number of extension blocks on the inner end face of the stoma body, various stoma shapes can be simulated. Suture, pressure injury, and incontinence models can be integrated to reduce the number of teaching models.
It enables the simulation of various stoma morphologies, improves teaching and demonstration efficiency, and reduces the number of teaching models used.
Smart Images

Figure CN224137829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, specifically to an enterostomy teaching model. Background Technology
[0002] Enterostomy is a surgical procedure in which one end of the large intestine is pulled out at an appropriate location in the abdomen, turned over, and sutured to the abdominal wall to create an opening. It is widely used in patients who have had a segment of their intestine removed due to tumors. Proper care of enterostomies is a fundamental skill that medical professionals must master. Medical teaching models can simulate the actual condition, facilitating understanding and mastery of related skills, and play a crucial role in the teaching process. However, existing teaching models are usually fixed three-dimensional shapes or two-dimensional images, which are relatively ineffective for teaching demonstrations and cannot simulate various types of enterostomies. Therefore, more teaching models are often needed during teaching demonstrations. Utility Model Content
[0003] The technical problem this invention aims to solve is that existing teaching models have fixed enterostomy shapes, which cannot simulate various stoma shapes, leading to a need for more teaching models. To address this problem, an enterostomy teaching model is proposed, comprising: a model body, a stoma teaching model, an intestinal model, a suture model, a pressure injury model, and an incontinence model. The outer surface of the model body is covered with a rubber layer, and an openable baffle is located on the front side of the model body. The stoma teaching model is positioned between the baffle and the rubber layer, and the shape and extension length of the stoma teaching model are adjustable. The intestinal model is positioned inside the model body, and the suture model, pressure injury model, and incontinence model are located on the rear side of the model body.
[0004] The technical solution of this embodiment simulates skin morphology by inflating or deflating the airbag to adjust the shape of the rubber layer. By adjusting the number of extension blocks on the inner end face of the stoma body, the length of the stoma body extending out of the pre-embedded part can be adjusted. The two work together to simulate various stoma shapes, which is easy to understand. By setting up suture models, pressure injury models, and incontinence models, and integrating multiple teaching and demonstration models, the number of teaching and demonstration models can be reduced and the efficiency of teaching and demonstration can be improved.
[0005] In a preferred embodiment of the present invention, the baffle plate is bonded to the rubber layer, and the rubber layer in this part is movable, which facilitates adjustment and fit to simulate various forms of enterostomy.
[0006] In a preferred embodiment of the present invention, the stoma teaching model includes an embedded part, a threaded block, a connector, an airbag ring, a stoma body, and an extension block. The embedded part is hollow in the middle, one end of the embedded part is connected to the outer surface of the rubber layer, and the other end of the embedded part is rotatably connected to the threaded block and extends between the baffle plate and the rubber layer. The surface of the baffle plate is provided with a connector that matches the threaded block. The airbag ring is set on the inner surface of the rubber layer. The stoma body is set in the hollow part of the embedded part, and the inner end of the stoma body is detachably connected to the extension block. The embedded part is connected or separated from the connector through the threaded block. With the airbag ring being inflated and deflated, it can simulate three shapes of skin: flat, concave, or convex. The stoma body can be adjusted in length by adjusting the number of extension blocks, thereby achieving the purpose of adjustable stoma teaching model shape.
[0007] In a preferred embodiment of the present invention, the threaded block has a positioning hole on the end face near the embedded part. The positioning hole is square, which facilitates connection with the extension block. At the same time, the square positioning hole can transmit torque, making it easy for the threaded block to rotate.
[0008] In a preferred embodiment of the present invention, one end face of the extension block is provided with a positioning insert that matches the positioning hole, and the other end face of the extension block is provided with a slot for easy interconnection. The extension blocks are connected by the slots, and the slots are consistent with the positioning holes. The inner end face of the stoma body is also provided with a positioning insert that connects to the slots.
[0009] In a preferred embodiment of the present invention, the outer surface of the connector is concave, and the concave portion is provided with a thread, and the connector is threadedly connected to the threaded block.
[0010] In a preferred embodiment of the present invention, the airbag ring is circular, and the embedded part passes through the middle gap of the airbag ring. By inflating or deflating the airbag ring, the shape of the stoma teaching model can be adjusted.
[0011] In a preferred embodiment of the present invention, the diameter of the extension block is the same as the maximum diameter of the stoma body, and the diameter of the extension block is slightly smaller than the inner diameter of the embedded part. The stoma body can be inserted into the interior of the embedded part to simulate the length of the stoma protruding.
[0012] In a preferred embodiment of the present invention, the intestinal model is provided with multiple detachable joints, the two ends of which are connected by means of adhesive bonding or other methods. After disconnection, it is also convenient to conduct detailed teaching and demonstration of each part.
[0013] The advantages of this utility model compared with the prior art are:
[0014] The technical solution of this utility model simulates skin morphology by inflating or deflating the airbag to adjust the shape of the rubber layer. By adjusting the number of extension blocks on the inner end face of the stoma body, the length of the stoma body extending out of the pre-embedded part can be adjusted. The two work together to simulate various stoma shapes, which is easy to understand. By setting up suture models, pressure injury models, and incontinence models, and integrating multiple teaching and demonstration models, the number of teaching and demonstration models can be reduced and the efficiency of teaching and demonstration can be improved. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the present invention;
[0016] Figure 2 This is a front view schematic diagram after sectional cutting of this utility model;
[0017] Figure 3 This is a rear view schematic diagram of the present invention;
[0018] Figure 4 This is an exploded view of the ostomy teaching model structure in this utility model;
[0019] Figure 5 This is a partial cross-sectional schematic diagram of the present invention;
[0020] The components are: 1-model body, 11-shielding plate, 12-rubber layer, 2-stoma teaching model, 21-embedded part, 22-threaded block, 23-positioning hole, 24-connector, 25-airbag ring, 26-stoma body, 27-extension block, 28-positioning insert, 29-slot, 3-intestinal model, 31-break, 4-suture model, 5-pressure injury model, 6-incontinence model. Detailed Implementation
[0021] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model will be described in detail below. Example 1
[0022] like Figure 1-5 As shown, this utility model is an enterostomy teaching model, including: model body 1, stoma teaching model 2, intestinal model 3, suture model 4, pressure injury model 5, and incontinence model 6.
[0023] like Figure 1 Figure 2 Figure 3 As shown, the model body 1 is made of hard plastic and has the same shape as a part of the human body. The interior of the model body 1 is hollow, and there is an openable cover plate 11 on the front side of the model body 1. The cover plate 11 is part of the outer shell of the model body 1 and is hinged. By opening the cover plate 11, the interior of the model body 1 can be observed.
[0024] In this embodiment, a rubber layer 12 is bonded to the surface of the model body 1, and the rubber layer 12 is used to simulate human skin.
[0025] like Figure 5 As shown, the rubber layer 12 on the outer surface of the shield 11 has the same shape as the shield 11. This part of the rubber layer 12 is bonded and fixed to the shield 11 by the edge, and this part of the rubber layer 12 only fits against most areas of the shield 11. Therefore, the distance and space between these parts can be adjusted to achieve the simulation of skin shape.
[0026] like Figure 2 As shown, the intestinal model 3 is located inside the main body 1. The intestinal model 3 is made of silicone and is supported by a bracket and a support plate. The intestinal model 3 is coiled inside the main body 1 to simulate the human intestine.
[0027] In this embodiment, the intestinal model is provided with multiple breaks 31, which divide the intestinal model 3 into multiple segments for differentiation. The breaks 31 are connected by adhesive bonding.
[0028] like Figure 3 As shown, the rear side of the model body 1 is equipped with a suture model 4, a pressure injury model 5, and an incontinence model 6, integrating multiple wound models onto the model body 1, making teaching and demonstration more convenient.
[0029] In this embodiment, the suture model 4, the pressure injury model 5, and the incontinence model 6 are all simulated on the rubber layer 12 on the outer surface of the model body 1. The shapes of the above-mentioned wound models are known technologies. The rubber layer 12 is similar to human skin, and it is easy to obtain the corresponding models by processing the rubber layer 12, so as to facilitate related teaching demonstrations.
[0030] like Figure 4 As shown, the stoma teaching model 2 includes an embedded part 21, a threaded block 22, a connector 24, an airbag ring 25, a stoma body 26, and an extension block 27.
[0031] In this embodiment, the embedded part 21 is a cylindrical tube. The outer end of the embedded part 21 protrudes outward to form a bonding surface. The bonding surface is fixed to the rubber layer 12 by adhesive bonding. The other end of the embedded part 21 is rotatably connected to the threaded block 22. The threaded block is located between the rubber layer 12 and the baffle plate 11.
[0032] In this embodiment, a connector 24 is fixedly installed on the surface of the shield plate 11 by screws. The outer surface of the connector 24 is concave, and the concave part is provided with a thread that matches the threaded block 22. The threaded block 22 can be threadedly connected to the connector 24.
[0033] In this embodiment, the threaded block 22 is fitted with a positioning hole 23 on the end face of the embedded part 21. The positioning hole 23 is not circular, but preferably square. The square positioning hole 23 can transmit torque. When other structures are inserted into the positioning hole 23, the threaded block 22 can be rotated together, thereby realizing the connection between the threaded block 22 and the connector 24.
[0034] In this embodiment, the airbag ring 25 is connected to the inner surface of the rubber layer 12 by adhesive or rope binding and is located between the baffle plate 11 and the rubber layer 12. The airbag ring 25 is circular and the middle part of the airbag ring 25 is empty. The embedded part 21 is located in the empty area in the middle of the airbag ring 25. The airbag ring 25 is the prior art. The airbag ring 25 is inflated by an inflation tube that extends beyond the rubber layer 12.
[0035] like Figure 5 As shown, the process of simulating skin morphology is as follows: When the airbag ring 25 is not inflated, it is flat. At this time, the sum of the lengths of the threaded block 22 and the embedded part 21 is much greater than the thickness of the airbag ring 25, which will push the rubber layer 12 of this part outward, simulating the outward convex shape of the skin at the stoma. When the airbag ring 25 is inflated, the airbag ring 25 gradually expands outward, driving most of the rubber layer 12 in the stoma area outward. At this time, this part of the area is relatively flat, simulating the flat shape of the skin at the stoma. The threaded block 22 is threadedly connected to the connector 24, and then the airbag ring 25 is inflated. At this time, the airbag ring 25 will drive the rubber layer 12 outward. However, since the embedded part 21 in the middle of the airbag ring 25 is fixed, the rubber layer 12 near the embedded part 21 remains stationary, thus simulating the concave shape of the skin at the stoma.
[0036] In this embodiment, the stoma body 26 is inserted into the embedded part 21. By adjusting its own length, the stoma body 26 can adjust the length extending out of the embedded part 21, thereby creating different stoma heights to facilitate better teaching and demonstration.
[0037] In this embodiment, the outer end of the stoma body 26 has the same shape as the enterostomy, and the inner end of the stoma body 26 is detachably connected with an extension block 27. The number of extension blocks 27 can be increased as needed.
[0038] In this embodiment, the extension block 27 is cylindrical. One end face of the extension block 27 protrudes outward to form a positioning insert 28, and the other end face of the extension block 27 is concave to form a slot 29. The extension blocks 27 are connected to each other by the positioning insert 28 and the slot 29 to achieve a detachable connection.
[0039] In this embodiment, the end face of the stoma body 26 is also provided with a positioning plug 28. The positioning plug 28 is inserted into the extension block 27, and the positioning plug 28 matches the positioning hole 23. After the stoma body 26 is connected to the extension block 27, the positioning plug 28 on the extension block 27 can be inserted into the positioning hole 23 to fix the stoma body 26.
[0040] In this embodiment, the diameter of the extension block 27 is the same as the maximum diameter of the stoma body 26. The diameter of the extension block 27 is slightly smaller than the inner diameter of the embedded part 21. Therefore, the extension block 27 can be smoothly inserted into the embedded part 21 and is not easily affected by friction.
[0041] In this embodiment, the positioning insert 28 and the slot 29 are interference fits, and the positioning insert 28 and the positioning hole 23 are clearance fits. Both fits are existing technologies. The difference is that the friction of the interference fit is greater than that of the clearance fit. Therefore, when the stoma body 26 is inserted or removed, it is easier to pull it out completely, and it is less likely that part of the extension block 27 will remain inside the embedded part 21.
[0042] In this embodiment, the process of simulating the height of the enterostomy is as follows: depending on the needs, different numbers of extension blocks 27 are installed on the stoma body 26, and then the whole body is inserted into the pre-embedded part 21, so that the positioning block 28 is inserted into the positioning hole 23. At this time, the stoma body 26 has three forms: extending out of the pre-embedded part 21, flush with the pre-embedded part 21, and located inside the pre-embedded part 21, respectively simulating the three forms of the enterostomy height being higher than the skin, flush with the stoma, and retracted stoma.
[0043] In this embodiment, the simulated skin morphology and simulated stoma height can be combined to simulate enterostomy in various states, so as to better carry out related teaching and demonstration processes.
[0044] In this embodiment, the method of connecting the threaded block 22 and the connector 24 is as follows: the stoma body 26 is connected to multiple extension blocks 27, which then extend into the embedded part 21. The last extension block 27 is connected to the positioning hole 23 through the positioning insert 28. Rotating the stoma body 26 can drive the threaded block 22 to rotate and achieve threaded connection with the connector 24.
[0045] The method of using the enterostomy teaching model in this embodiment is as follows:
[0046] Opening the cover plate 11 reveals the intestinal model 3, which can be disconnected through the cut 31 for easier removal and better teaching demonstration. The suture model 4, pressure injury model 5, and incontinence model 6 on the rear side of the model body 1 can visually demonstrate the relevant wound morphology.
[0047] For the stoma teaching model 2, various shapes can be simulated through adjustments. Specifically: when the airbag ring 25 is not inflated, the threaded block 22 is connected to the connector 24. At this time, the sum of the lengths of the embedded part 21, the threaded block 22, and the connector 24 is greater than the thickness of the airbag ring 25, which will push the rubber layer 12 of this part outward, simulating the convex shape of the skin at the stoma. When the airbag ring 25 is inflated, it gradually expands outward, causing the corresponding rubber layer 12 of the stoma area to move outward. At this time, this part of the area is relatively flat, which can simulate the flat shape of the skin at the stoma. After the threaded block 22 is threadedly connected to the connector 24, it inflates the airbag ring 25. At this time, the airbag ring 25 will bring... The moving rubber layer 12 faces outward, but because the embedded part 21 in the middle of the airbag ring 25 remains stationary and is connected to the baffle plate 11, the rubber layer 12 near the embedded part 21 remains stationary, thus simulating the concave shape of the skin at the stoma. Then, depending on the needs, different numbers of extension blocks 27 are installed on the stoma body 26, and then the whole body is inserted into the embedded part 21, so that the positioning block 28 is inserted into the positioning hole 23. At this time, the stoma body 26 has three forms: extending out of the embedded part 21, flush with the embedded part 21, and located inside the embedded part 21, respectively simulating the three forms of the stoma: the stoma height is higher than the skin, the stoma is flush with the skin, and the stoma retracts.
[0048] Skin morphology and enterostomy height morphology can be combined to simulate enterostomies in various states, so as to facilitate comprehensive teaching and demonstration for medical professionals.
[0049] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.
Claims
1. An ostomy teaching model, characterized in that include: The model body (1), stoma teaching model (2), intestinal model (3), suture model (4), pressure injury model (5) and incontinence model (6) are provided. The outer surface of the model body (1) is provided with a rubber layer (12). The front side of the model body (1) is provided with an openable baffle (11). The stoma teaching model (2) is set between the baffle (11) and the rubber layer (12). The shape and extension length of the stoma teaching model (2) are adjustable. The intestinal model (3) is set inside the model body (1). The rear side of the model body (1) is provided with a suture model (4), a pressure injury model (5) and an incontinence model (6).
2. An ostomy teaching model according to claim 1, characterised in that: The shield (11) is bonded to the rubber layer (12).
3. An ostomy teaching model according to claim 1, wherein: The stoma teaching model (2) includes an embedded part (21), a threaded block (22), a connector (24), an airbag ring (25), a stoma body (26), and an extension block (27). The middle part of the embedded part (21) is hollow. One end of the embedded part (21) is connected to the outer surface of the rubber layer (12). The other end of the embedded part (21) is rotatably connected to the threaded block (22) and extends between the baffle plate (11) and the rubber layer (12). The surface of the baffle plate (11) is provided with a connector (24) that matches the threaded block (22). The airbag ring (25) is set on the inner surface of the rubber layer (12). The stoma body (26) is set in the hollow part of the embedded part (21). The inner end of the stoma body (26) is detachably connected to the extension block (27).
4. An ostomy teaching model according to claim 3, wherein: The threaded block (22) has a positioning hole (23) on its end face near the embedded part (21), and the positioning hole (23) is square.
5. An ostomy teaching model according to claim 4, wherein: The extension block (27) has a positioning insert (28) on one side end face that matches the positioning hole (23), and a slot (29) on the other side end face that facilitates mutual connection.
6. An ostomy teaching model according to claim 3, wherein: The outer surface of the connector (24) is concave, and the concave part is provided with threads.
7. An ostomy teaching model according to claim 3, wherein: The airbag ring (25) is circular, and the embedded part (21) passes through the middle gap of the airbag ring (25).
8. An ostomy teaching model according to claim 3, wherein: The diameter of the extension block (27) is the same as the maximum diameter of the stoma body (26), and the diameter of the extension block (27) is slightly smaller than the inner diameter of the embedded part (21).
9. The ostomy teaching model of claim 1, wherein: The intestinal model (3) has multiple disconnectable breaks (31).