Peritoneal dialysis simulation training human anatomy model

Abstract

The utility model relates to skill training device technical field, concretely, it is human anatomy model of peritoneal dialysis simulation training, including human body torso model body, the front of human body torso model body is provided with transparent observation cylinder, the front of human body torso model body is provided with abdominal wall simulation layer, abdominal wall simulation layer is located at the inside center position department of transparent observation cylinder, the inside of human body torso model body is provided with abdominal cavity cavity, is provided with internal organ model in abdominal cavity cavity, still be provided with peritoneal membrane simulation layer in abdominal cavity cavity, the outside of human body torso model body is provided with dialysis pipe, the inner wall one side of transparent observation cylinder is fixed and is installed with internal transparent board, is provided with a plurality of needle guide cylinder of guiding puncture needle and carries out puncture on internal transparent board, the utility model discloses build up the abdominal cavity environment of fitting human real anatomical structure, convenient for simulation operation, reach the effect of helping trainee to adapt to clinical actual operation quickly, reduce real operation risk.

Description

Technical Field

[0001] This utility model relates to the field of skills training equipment technology, and more specifically, to a human anatomical model for peritoneal dialysis simulation training. Background Technology

[0002] Peritoneal dialysis is an important renal replacement therapy for end-stage renal disease. It involves infusing dialysate into the peritoneal cavity, using the peritoneum as a semipermeable membrane to facilitate the exchange of solutes and water between the blood and the dialysate, thereby removing metabolic waste and correcting electrolyte and acid-base imbalances. Because peritoneal dialysis involves procedures such as catheter placement, infusion, and drainage within the patient's abdominal cavity, the standardization of these procedures directly impacts treatment effectiveness and patient safety. Therefore, medical staff must undergo systematic simulation training before performing clinical procedures to master the operational procedures and emergency response skills.

[0003] Currently, peritoneal dialysis simulation training mainly relies on two methods: one is theoretical teaching combined with animal experiments, and the other is using simplified peritoneal models for operational practice. However, both methods have significant drawbacks: on the one hand, although animal experiments can simulate some physiological environments, the anatomical structure of the animal peritoneum differs greatly from that of the human body, and the experiments are costly and ethically controversial, failing to meet the needs of large-scale, repeated training; on the other hand, existing simplified peritoneal models are mostly single-cavity structures, only simulating the basic morphology of the peritoneum and lacking key anatomical structures related to peritoneal dialysis operations (such as the rectus abdominis muscle, preperitoneal fat, bladder, intestines, etc.). This results in medical staff being unable to perceive key parameters such as operational force and puncture depth during simulation training, making it difficult to quickly adapt to actual clinical operations after training, and increasing the risk of catheter placement errors, peritoneal damage, and dialysate leakage in real operations. Therefore, we propose a human anatomical model for peritoneal dialysis simulation training. Utility Model Content

[0004] The purpose of this invention is to provide a human anatomical model for peritoneal dialysis simulation training, so as to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A human anatomical model for peritoneal dialysis simulation training includes a human torso model body. A transparent observation tube is disposed on the front of the human torso model body, and an abdominal wall simulation layer is disposed on the front of the human torso model body. The abdominal wall simulation layer is located at the center of the inner side of the transparent observation tube. An abdominal cavity is disposed inside the human torso model body, and an internal organ model is disposed inside the abdominal cavity. A peritoneal simulation layer is also disposed inside the abdominal cavity. A dialysis tube is disposed outside the human torso model body, and an inner transparent plate is fixedly installed on the other side of the inner wall of the transparent observation tube. Multiple needle guide tubes for guiding puncture needles to perform punctures are disposed on the inner transparent plate.

[0006] Preferably, the inner transparent plate is a transparent plate structure, and an observation hole is provided between the inner transparent plate and the inner wall of the transparent observation tube; This setting facilitates observation operations.

[0007] Preferably, a transparent cover plate is hinged to the front of the transparent observation tube, and the transparent cover plate is a transparent plate structure; The transparent cover in this feature can be closed for dust protection when not in use.

[0008] Preferably, the abdominal wall simulation layer is composed of a skin simulation layer disposed on the surface, a subcutaneous fat simulation layer disposed at the bottom of the skin simulation layer, a rectus abdominis muscle simulation layer disposed at the bottom of the subcutaneous fat simulation layer, and a preperitoneal fat simulation layer disposed at the bottom of the rectus abdominis muscle simulation layer. This design utilizes silicone materials of varying hardness in each layer to simulate the feel and thickness of the real human abdominal wall.

[0009] Preferably, the abdominal cavity is formed by an abdominal wall covering layer and is filled with a transparent liquid that simulates peritoneal fluid. This setting can improve the realism of the simulation.

[0010] Preferably, a plurality of insertion rings are fixedly installed on the inner transparent plate, and the bottom of the needle guide cylinder is detachably connected to the insertion rings.

[0011] Preferably, a plug-in tube is fixedly installed at the bottom end of the needle guide tube, the plug-in tube and the plug-in ring are plugged into each other, and the plug-in tube and the plug-in ring are interference fit. The above two settings facilitate the proper loading and unloading of the needle guide cylinder.

[0012] Preferably, a transparent silicone ring is fixedly installed on the inner wall of the needle guide cylinder, and a snap-fit ​​gap is provided on the side of the needle guide cylinder along the height direction of the needle guide cylinder. This setup effectively secures the puncture needle and its handle using a transparent silicone ring and a snap-fit ​​gap.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This invention achieves a precise simulation of the feel and thickness of the real human abdominal wall by setting up an abdominal wall simulation layer composed of a skin simulation layer, a subcutaneous fat simulation layer, a rectus abdominis muscle simulation layer, and a preperitoneal fat simulation layer, with each layer using silicone materials of different hardness. At the same time, the abdominal cavity is filled with a transparent liquid simulating peritoneal fluid and internal organ models and a peritoneal simulation layer are set up to construct an abdominal cavity environment that conforms to the real human anatomy. This allows medical staff to clearly perceive the resistance changes of each layer of the abdominal wall during puncture during simulation training and accurately judge the puncture depth. It effectively solves the problem that traditional simple models lack key anatomical structures and cannot provide a realistic operational perception, thus helping trainees quickly adapt to actual clinical operations and reducing the risks of real operations.

[0014] 2. This utility model, by setting multiple needle insertion guide tubes on the inner transparent plate of the transparent observation tube, and by detachably connecting the needle insertion guide tubes to the insertion rings via plug-in tubes, achieves flexible adaptation to different puncture sites. Medical personnel can select the corresponding needle insertion guide tube for puncture practice according to training needs. At the same time, the transparent silicone ring on the inner wall of the needle insertion guide tube and the snap-fit ​​gap on the side can stably fix the puncture needle and the handle on the needle. This solves the problems of no guidance at the puncture site and easy deviation of the puncture angle in traditional training, and achieves the effect of helping trainees master the correct puncture posture and improving the standardization of operation.

[0015] 3. This invention utilizes a transparent observation tube with a transparent cover, where the inner transparent plate and the other side of the inner wall of the observation tube form an observation hole. This allows for clear observation of the puncture process and the internal condition of the abdominal cavity. Trainees and instructors can use the transparent observation tube to view in real time the depth of the puncture needle entering the abdominal wall, the placement of the dialysis tube, and the state of the simulated fluid in the abdominal cavity, allowing them to grasp the training details without disassembling the model. When not in use, the transparent cover also provides dust protection, extending the model's lifespan and improving the convenience of training observation while ensuring model cleanliness. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the simulated abdominal wall layer of this utility model; Figure 3 This is one of the partial structural schematic diagrams of this utility model; Figure 4 This is the second partial structural schematic diagram of the present utility model; The meanings of the labels in the diagram are as follows: 1. Human torso model body; 10. Transparent observation tube; 11. Inner transparent plate; 12. Observation hole; 13. Insertion ring; 14. Transparent cover plate; 2. Abdominal wall simulation layer; 20. Skin simulation layer; 21. Subcutaneous fat simulation layer; 22. Rectus abdominis muscle simulation layer; 23. Preperitoneal fat simulation layer; 3. Abdominal cavity; 30. Abdominal wall covering layer; 31. Internal organ model; 32. Peritoneal simulation layer; 4. Dialysis tubing; 5. Needle guide tube; 50. Insertion tube; 51. Snap-fit ​​gap; 52. Transparent silicone ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 This utility model provides a technical solution: a human anatomical model for peritoneal dialysis simulation training, including a human torso model body 1, a transparent observation tube 10 on the front of the human torso model body 1, an abdominal wall simulation layer 2 on the front of the human torso model body 1, the abdominal wall simulation layer 2 being located at the inner center of the transparent observation tube 10, an abdominal cavity 3 being provided inside the human torso model body 1, an internal organ model 31 being provided inside the abdominal cavity 3, and a peritoneal simulation layer 32 being provided inside the abdominal cavity 3, so that the model can restore the basic anatomical structure of the human abdominal cavity, providing medical staff with a training carrier that is close to reality, avoiding the problems of large differences in anatomical structure and many ethical controversies in traditional animal experiments, and making the training more in line with clinical practice.

[0019] like Figure 1 As shown, a dialysis tube 4 is provided on the outside of the human torso model body 1, and a puncture needle is connected to the dialysis tube 4. The dialysis tube 4 allows the operator to perform puncture operations during the dialysis process. An inner transparent plate 11 is fixedly installed on one side of the inner wall of the transparent observation tube 10. The inner transparent plate 11 is a transparent plate structure, which facilitates observation operations. Multiple needle guide tubes 5 are provided on the inner transparent plate 11 to guide the puncture needles to perform punctures, which can guide the needle insertion.

[0020] like Figure 3 As shown, an observation hole 12 is provided between the inner transparent plate 11 and the other side of the inner wall of the transparent observation tube 10 to facilitate observation.

[0021] like Figure 1 As shown, a transparent cover plate 14 is hinged to the front of the transparent observation tube 10. The transparent cover plate 14 is a transparent plate structure, which allows the transparent cover plate 14 to be closed on the transparent observation tube 10 when the model is not in use, thereby preventing dust from entering the transparent observation tube 10 and the abdominal cavity 3, protecting the internal components of the model and extending the service life of the model. At the same time, the transparent material does not affect the observation of the internal structure of the model when it is not in use.

[0022] Specifically, the abdominal wall simulation layer 2 consists of a skin simulation layer 20 on the surface, a subcutaneous fat simulation layer 21 at the bottom of the skin simulation layer 20, a rectus abdominis muscle simulation layer 22 at the bottom of the subcutaneous fat simulation layer 21, and a preperitoneal fat simulation layer 23 at the bottom of the rectus abdominis muscle simulation layer 22. Each layer uses silicone material with different hardness, so that medical staff can clearly perceive the tactile differences and resistance changes of different abdominal wall layers during puncture training, accurately judge the puncture depth, solve the defect of traditional simple models that cannot provide real operation perception, and help trainees develop the correct operation feel.

[0023] Furthermore, the peritoneal cavity 3 is formed by the peritoneal wall covering layer 30 and is filled with a transparent liquid that simulates peritoneal fluid, making the peritoneal environment closer to the physiological state of the human body. During training, medical staff can observe the flow of dialysate in the peritoneal cavity. At the same time, the simulated peritoneal fluid can help determine whether the puncture has penetrated the peritoneal simulation layer 32, thereby improving the realism and practicality of the training and reducing the risk of dialysate leakage in actual operation.

[0024] In addition, multiple insertion rings 13 are fixedly installed on the inner transparent plate 11, and the bottom of the needle guide tube 5 is detachably connected to the insertion rings 13; an insertion tube 50 is fixedly installed at the bottom end of the needle guide tube 5, and the insertion tube 50 and the insertion ring 13 are inserted and fitted together, and the insertion tube 50 and the insertion ring 13 are interference fit, so that medical staff can flexibly install, remove or replace the needle guide tube 5 in different positions according to training needs, adapt to the training needs of various puncture sites, and improve the flexibility of the model.

[0025] It is worth noting that a transparent silicone ring 52 is fixedly installed on the inner wall of the needle insertion guide cylinder 5, and a locking gap 51 is provided on the side of the needle insertion guide cylinder 5 along the height direction of the needle insertion guide cylinder 5. The transparent silicone ring 52 can be made of silicone material, which allows the puncture needle to be inserted normally and facilitates observation. In addition, the puncture needle is not easy to slip after being inserted into the transparent silicone ring 52 without external force, so that the transparent silicone ring 52 can clamp the puncture needle when it is inserted into the needle insertion guide cylinder 5. The locking gap 51 can limit and fix the handle part on the puncture needle, prevent the needle tip from deviating during puncture, help the trainee maintain the correct puncture angle, and improve the standardization of operation.

[0026] It is worth noting that the visceral organ model 31 includes a bladder model, an intestinal model, and a liver model, which are made of flexible silicone and fixed in the abdominal cavity according to the actual anatomical position of the human body; the peritoneal simulation layer 32 covers the inner wall of the abdominal cavity and the surface of the visceral organ model, and is made of ultra-thin elastic silicone to simulate the elasticity and permeability of the real peritoneum.

[0027] When using the human anatomical model for peritoneal dialysis simulation training of this utility model, open the transparent cover 14 hinged on the front of the transparent observation tube 10 to check whether the peritoneal cavity 3 is filled with transparent liquid simulating peritoneal fluid. After confirming that the internal organ model 31, peritoneal simulation layer 32 and abdominal wall simulation layer 2 are intact, install the needle guide tube 5 with the insertion ring 13 on the inner transparent plate 11 through the insertion tube 50 at the bottom end through an interference fit, and complete the preparation. During training, the operator holds the puncture needle on the dialysis tube 4, inserts it into the needle guide tube 5, clamps the puncture needle with the transparent silicone ring 52, and limits the needle handle with the gap 51. The needle is then inserted into the abdominal wall simulation layer 2 along the guide tube. During the process, the operator observes the penetration of the puncture needle into the skin simulation layer 20, subcutaneous fat simulation layer 21, and other layers through the transparent observation tube 10, the inner transparent plate 11, and the observation hole 12, and determines whether the needle has penetrated the peritoneal simulation layer 32. After training, remove the puncture needle and dialysis tube 4, remove the needle guide tube 5 for cleaning, and close the transparent cover 14 to prevent dust from entering. If the simulated peritoneal fluid in the peritoneal cavity 3 is insufficient, replenish it in time to ensure that the model can be used normally next time.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A human anatomical model for peritoneal dialysis simulation training, comprising a human torso model body (1), characterized in that: A transparent observation tube (10) is provided on the front of the human torso model body (1), and an abdominal wall simulation layer (2) is provided on the front of the human torso model body (1). The abdominal wall simulation layer (2) is located at the center of the inner side of the transparent observation tube (10). An abdominal cavity (3) is provided inside the human torso model body (1). An internal organ model (31) is provided inside the abdominal cavity (3). A peritoneum simulation layer (32) is also provided inside the abdominal cavity (3). A dialysis tube (4) is provided on the outside of the human torso model body (1). An inner transparent plate (11) is fixedly installed on one side of the inner wall of the transparent observation tube (10). Multiple needle guide tubes (5) for guiding puncture needles are provided on the inner transparent plate (11).

2. The human anatomical model for peritoneal dialysis simulation training according to claim 1, characterized in that: The inner transparent plate (11) is a transparent plate structure, and an observation hole (12) is provided between the inner transparent plate (11) and the other side of the inner wall of the transparent observation tube (10).

3. The human anatomical model for peritoneal dialysis simulation training according to claim 1, characterized in that: A transparent cover plate (14) is hinged to the front of the transparent observation tube (10), and the transparent cover plate (14) is a transparent plate structure.

4. The human anatomical model for peritoneal dialysis simulation training according to claim 1, characterized in that: The abdominal wall simulation layer (2) consists of a skin simulation layer (20) on the surface, a subcutaneous fat simulation layer (21) at the bottom of the skin simulation layer (20), a rectus abdominis muscle simulation layer (22) at the bottom of the subcutaneous fat simulation layer (21), and a preperitoneal fat simulation layer (23) at the bottom of the rectus abdominis muscle simulation layer (22).

5. The human anatomical model for peritoneal dialysis simulation training according to claim 1, characterized in that: The abdominal cavity (3) is formed by an abdominal wall covering layer (30) and is filled with a transparent liquid that simulates peritoneal fluid.

6. The human anatomical model for peritoneal dialysis simulation training according to claim 1, characterized in that: Multiple insertion rings (13) are fixedly installed on the inner transparent plate (11), and the bottom of the needle guide cylinder (5) is detachably connected to the insertion rings (13).

7. The human anatomical model for peritoneal dialysis simulation training according to claim 6, characterized in that: The bottom end of the needle guide tube (5) is fixedly installed with a plug tube (50), the plug tube (50) and the plug ring (13) are plugged in and fit together, and the plug tube (50) and the plug ring (13) are interference fit together.

8. The human anatomical model for peritoneal dialysis simulation training according to claim 7, characterized in that: A transparent silicone ring (52) is fixedly installed on the inner wall of the needle guide cylinder (5), and a snap-fit ​​gap (51) is provided on the side of the needle guide cylinder (5) along the height direction of the needle guide cylinder (5).

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