A teaching model for skin suturing

CN224720530UActive Publication Date: 2026-09-04ZHUJIANG HOSPITAL OF SOUTHERN MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202521983106.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-09-04
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

[0003]传统缝线比较依赖外科医生的经验,在传统的教学方式是依靠教师在课堂上通过图片、视频或在模型上进行简单演示来教学皮肤缝合的步骤及操作要点;这种教学方式会让学生缺乏真实的操作体验,从而无法熟练的理解和掌握缝合的手感、操作力度及不同组织层次的缝合技巧;还会在实际操作时出现紧张、不熟练等影响缝合效果和患者的愈合情况

Benefits of technology

[0015]本实用新型通过教学工具盒和仿真皮肤层的作用,不仅可以让学生在仿真皮肤层的切口上进行皮肤缝合的实体操作,极大程度上模拟了实际操作的状态,可以让学生快速的练习操作及熟练掌握缝合技巧;还可以改变圆柱上方仿真皮肤层及切口处的皮肤表面弧度,以模拟人体手腕、手臂、大腿等位置的皮肤表面弧度;具有极高的仿真状态和便于学生在各个部位处皮肤表面弧度进行高效练习及适应对应皮肤表面弧度缝合技巧的功能。

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Abstract

The utility model discloses a kind of teaching models for skin suture, it is related to skin simulation suture technical field.The utility model includes teaching tool box and simulation skin layer;Teaching tool box includes box body and buckle frame body, box body is equipped with simulation skin layer with buckle frame body and is clamped, and is clamped;Incision for suture is set on simulation skin layer;Lifting chute is set on the upper surface of box body;Cylinder in transverse state is slidably fitted in lifting chute inner wall;Threaded blind hole is set in the bottom of cylinder;Miniature motor is installed in the inside of box body, and the output shaft of miniature motor is fixedly installed with threaded rod, and is equipped with threaded blind hole with thread cooperation;Miniature motor is electrically connected with battery and control switch.The utility model simulates the skin surface camber of each part of human body and the state of actual operation by the effect of teaching tool box and simulation skin layer, with very high simulation state and the function of student's skin surface camber in each part efficiently practice.
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Description

Technical Field

[0001] This invention belongs to the field of skin simulation suturing technology, and in particular relates to a teaching model for skin suturing. Background Technology

[0002] The skin consists of two layers: the epidermis and the dermis. The epidermis, located on the skin's surface, can be further divided into the stratum corneum and the germinal layer. The epidermis is a stratified squamous epithelium, while the dermis is dense connective tissue containing numerous elastic and collagen fibers, giving it elasticity and resilience. Skin suturing is a common medical procedure for closing wounds and promoting healing. The key lies in choosing the appropriate method based on the wound's location, depth, and the patient's needs. Common methods include traditional sutures, intradermal suturing, skin glue, or staples, each with its own suitable scenarios and advantages and disadvantages. Skin suturing is a fundamental skill that healthcare professionals must master in clinical practice, used to manage skin wounds, promote wound healing, reduce the risk of infection, and minimize scar formation.

[0003] Traditional suture techniques rely heavily on the surgeon's experience. Traditional teaching methods involve teachers demonstrating skin suturing steps and key points in class using pictures, videos, or models. This approach deprives students of real-world experience, hindering their understanding and mastery of suturing feel, pressure, and techniques for different tissue layers. It can also lead to nervousness and lack of proficiency during actual practice, affecting suturing results and patient healing.

[0004] To address the aforementioned problem that students lack real-world hands-on experience and thus struggle to master suturing techniques, this invention presents a teaching model for skin suturing. Utility Model Content

[0005] The purpose of this invention is to provide a teaching model for skin suturing. Through the teaching toolbox and the simulated skin layer, students can not only perform actual skin suturing operations on the incision of the simulated skin layer, simulating the state of actual operation, but also simulate the curvature of the skin surface in areas such as the wrist, arm, and thigh. It has a very high degree of simulation and facilitates efficient practice of the curvature of the skin surface in various parts of the body. It solves the problem mentioned above of the lack of real operation experience, which makes it difficult to master suturing skills.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a teaching model for skin suturing, including a teaching toolbox and a simulated skin layer; the teaching toolbox includes a box body and a snap-fit ​​frame, the box body and the snap-fit ​​frame are fitted together, and a simulated skin layer is snapped between them; the simulated skin layer has an incision for suturing; the upper surface of the box body has a lifting groove; a cylinder in a horizontal position is slidably fitted on the inner wall of the lifting groove; a threaded blind hole is formed at the bottom of the cylinder; a micro motor is installed inside the box body, and the output shaft of the micro motor is fixedly mounted with a threaded rod, which is threadedly engaged with the threaded blind hole; the micro motor... The device is electrically connected to a battery and a control switch. The housing provides a fixed support for the simulated skin layer, and the snap-fit ​​frame secures the simulated skin layer to the housing, ensuring its stability during operation. The incision simulates a skin wound requiring suturing. The rising and falling of the cylinder compresses the bottom of the simulated skin layer upwards, causing the incision and surrounding area to bulge upwards, simulating the curvature of the skin surface in areas such as the wrist, arm, and thigh. The higher the cylinder's rising and falling height, the greater the bulge and the greater the curvature of the skin surface; conversely, the lower the height, the smaller the curvature.

[0008] As a preferred embodiment of this utility model, a simulated fat layer is fixedly connected to the bottom surface of the simulated skin layer; the simulated fat layer is made of silicone rubber or foamed rubber.

[0009] As a preferred embodiment of this utility model, the simulated skin layer includes a simulated epidermis layer and a simulated dermis layer, and a simulated dermis layer is disposed on the lower surface of the simulated epidermis layer; the simulated skin layer is made of silicone or multilayer composite silicone.

[0010] As a preferred technical solution of this utility model, the upper surface of the box is evenly provided with a number of slots, the buckle frame is a rectangular frame structure, a number of hooks are evenly provided at the outer edge of the bottom surface of the buckle frame, and a pressing part is fixed at the inner edge of the bottom surface of the buckle frame; the hooks are engaged in the slots; the buckle frame fixes the perimeter of the simulated skin layer.

[0011] As a preferred technical solution of this utility model, the extrusion part adopts a pressure plate structure; the function of the pressure plate structure is to fix the periphery of the simulated skin layer.

[0012] As a preferred technical solution of this utility model, the extrusion part adopts a V-shaped clamping plate structure, and a protrusion is fixed on the upper surface of the box body directly below the V-shaped clamping plate structure; the V-shaped clamping plate structure and the protrusion clamp and fix the periphery of the simulated skin layer.

[0013] As a preferred technical solution of this utility model, a limiting ring plate is fixed on the upper surface of the box body at the bottom edge of the simulated skin layer; the function of the limiting ring plate is to limit the placement position of the simulated skin layer and ensure the stability after placement and fixation.

[0014] This utility model has the following beneficial effects:

[0015] This invention, through the use of a teaching toolbox and a simulated skin layer, not only allows students to perform actual skin suturing operations on the incision of the simulated skin layer, greatly simulating the state of actual operation, but also allows students to quickly practice operations and master suturing techniques. It can also change the curvature of the simulated skin layer above the cylinder and the skin surface at the incision to simulate the curvature of the skin surface in human wrists, arms, thighs, etc. It has a very high degree of simulation and facilitates students to efficiently practice the skin surface curvature of various parts and adapt to the corresponding skin surface curvature suturing techniques.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a teaching model for skin suturing according to the present invention;

[0019] Figure 2 This is an exploded structural diagram of a teaching model for skin suturing according to the present invention;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the box body of this utility model;

[0022] Figure 5 This is a schematic diagram of the buckle frame of the present invention in Embodiment 2;

[0023] Figure 6 This is a schematic diagram of the buckle frame of the present invention in Embodiment 3;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Teaching toolbox, 2-Simulated skin layer, 3-Simulated fat layer, 101-Box body, 102-Snap-on frame, 103-Lifting slide, 104-Cylinder, 105-Threaded blind hole, 106-Micro motor, 107-Control switch, 108-Slot, 109-Hook, 110-Extrusion part, 111-Pressure plate structure, 112-V-shaped clamping plate structure, 113-Protrusion, 114-Limiting ring plate, 201-Slit, 202-Simulated epidermis, 203-Simulated dermis. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0028] Example 1

[0029] Please see Figure 1-4As shown, this utility model is a teaching model for skin suturing, including a teaching tool box 1 and a simulated skin layer 2. The teaching tool box 1 includes a box body 101 and a snap-fit ​​frame 102. The box body 101 and the snap-fit ​​frame 102 are snapped together, and the simulated skin layer 2 is snapped between them. The simulated skin layer 2 has an incision 201 for suturing. The upper surface of the box body 101 has a lifting groove 103. A cylinder 104 in a horizontal position is slidably fitted on the inner wall of the lifting groove 103. A threaded blind hole 105 is opened at the bottom of the cylinder 104. A micro motor 106 is installed inside the box body 101. The output shaft of the micro motor 106 is fixedly installed with a threaded rod and is threadedly engaged with the threaded blind hole 105. The micro motor 106 is electrically connected to a battery and a control switch 107. The box body 101 provides a solid support for the simulated skin layer 2. The fixed support and snap-fit ​​frame 102 are used to fix the simulated skin layer 2 on the box 101 to ensure the stability of the simulated skin layer 2 during operation; the incision 201 is used to simulate the wound that needs to be sutured on the skin; the lifting height of the cylinder 104 will squeeze the bottom of the simulated skin layer 2 upward, so that the incision 201 and the surrounding area of ​​the simulated skin layer 2 bulge upward, thereby simulating the curvature of the skin surface of the human wrist, arm, thigh, etc.; the higher the lifting height of the cylinder 104, the greater the bulge and the greater the curvature of the skin surface; conversely, the lower the lifting height, the smaller the curvature of the skin surface; the micro motor 106 controls the lifting operation of the cylinder 104 by rotating forward and backward; the micro motor 106 adopts a stepper motor, so that the height of the cylinder 104 can be controlled relatively accurately and effectively, thereby realizing the function of adjusting the curvature of the skin surface.

[0030] Among them, such as Figure 3 As shown, a simulated fat layer 3 is fixedly connected to the bottom surface of the simulated skin layer 2; the simulated fat layer 3 is made of silicone rubber or foamed rubber; the simulated skin layer 2 includes a simulated epidermal layer 202 and a simulated dermal layer 203, with a simulated dermal layer 203 disposed on the lower surface of the simulated epidermal layer 202; the simulated skin layer 2 is made of silicone or multi-layer composite silicone; the silicone rubber or foamed rubber used in the simulated fat layer 3 and the silicone or multi-layer composite silicone used in the simulated skin layer 2 both have good elasticity, which can meet the functional requirements of stretching and rebounding when adjusting the surface curvature.

[0031] Among them, such as Figure 4 As shown, the upper surface of the box 101 is evenly provided with several slots 108, the buckle frame 102 is a rectangular frame structure, several hooks 109 are evenly provided at the outer edge of the bottom surface of the buckle frame 102, and a pressing part 110 is fixed at the inner edge of the bottom surface of the buckle frame 102; the hooks 109 are snapped into the slots 108; the buckle frame 102 fixes the perimeter of the simulated skin layer 2.

[0032] Example 2

[0033] A more preferred technical solution based on Embodiment 1 is as follows: Please refer to [link / reference]. Figure 5 As shown, the extrusion section 110 adopts a pressure plate structure 111; the function of the pressure plate structure 111 is to fix the periphery of the simulated skin layer 2.

[0034] Among them, such as Figure 4 As shown, a limiting ring plate 114 is fixed on the upper surface of the box 101 at the bottom edge of the simulated skin layer 2; the function of the limiting ring plate 114 is to limit the placement position of the simulated skin layer 2 and ensure the stability after placement and fixation.

[0035] Example 3

[0036] A more preferred technical solution based on Embodiment 1 is as follows: Please refer to [link / reference]. Figure 4 and Figure 6 As shown, the extrusion part 110 adopts a V-shaped clamping plate structure 112, and a protrusion 113 is fixed on the upper surface of the box body 101 directly below the V-shaped clamping plate structure 112; the V-shaped clamping plate structure 112 and the protrusion 113 clamp and fix the simulated skin layer 2 around its perimeter.

[0037] It is worth noting that in the above system embodiments, the various units are divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the protection scope of this utility model.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A teaching model for skin suturing, characterized in that: It includes a teaching toolbox (1) and a simulated skin layer (2); The teaching toolbox (1) includes a box body (101) and a snap-fit ​​frame (102). The box body (101) and the snap-fit ​​frame (102) are snapped together, and a simulated skin layer (2) is snapped between them. The simulated skin layer (2) has an incision (201) for suturing. The upper surface of the box (101) is provided with a lifting slide groove (103); a cylinder (104) in a horizontal position is slidably fitted on the inner wall of the lifting slide groove (103); a threaded blind hole (105) is provided at the bottom of the cylinder (104); a micro motor (106) is installed inside the box (101), and a threaded rod is fixedly installed on the output shaft of the micro motor (106), and it is threadedly fitted with the threaded blind hole (105); the micro motor (106) is electrically connected to a battery and a control switch (107).

2. The teaching model for skin suturing according to claim 1, characterized in that, The simulated skin layer (2) has a simulated fat layer (3) fixedly connected to its bottom surface; the simulated fat layer (3) is made of silicone rubber or foamed rubber.

3. The teaching model for skin suturing according to claim 1, characterized in that, The simulated skin layer (2) includes a simulated epidermis layer (202) and a simulated dermis layer (203), and a simulated dermis layer (203) is provided on the lower surface of the simulated epidermis layer (202); the simulated skin layer (2) is made of silicone or multilayer composite silicone.

4. The teaching model for skin suturing according to claim 1, characterized in that, The upper surface of the box body (101) is evenly provided with a number of slots (108), the buckle frame (102) is a rectangular frame structure, a number of hooks (109) are evenly provided at the outer edge of the bottom surface of the buckle frame (102), and a pressing part (110) is fixed at the inner edge of the bottom surface of the buckle frame (102); the hooks (109) are engaged in the slots (108).

5. A teaching model for skin suturing according to claim 4, characterized in that, The extrusion section (110) adopts a pressure plate structure (111).

6. The teaching model for skin suturing according to claim 4, characterized in that, The extrusion part (110) adopts a V-shaped clamping plate structure (112), and a protrusion (113) is fixed on the upper surface of the box body (101) directly below the V-shaped clamping plate structure (112).

7. The teaching model for skin suturing according to claim 1, characterized in that, A limiting ring plate (114) is fixed on the upper surface of the box (101) at the bottom edge of the simulated skin layer (2).