Subcutaneous injection simulation education equipment

Abstract

The utility model relates to a hypodermic injection simulation education device which comprises a muscle simulation layer used for simulating human muscle texture and a plurality of replaceable injection layers arranged above the muscle simulation layer, and first connecting pieces are arranged at the two symmetrical ends of the muscle simulation layer; any injection layer comprises a corium layer and a fat layer arranged below the corium layer, second connecting pieces are arranged at the two symmetrical ends of the fat layer, and the first connecting pieces and the second connecting pieces are detachably connected in a matched mode; the muscle simulation layer is provided with a fixing assembly. According to the insulin injection simulation device, the actual injection action and state of a patient can be simulated, insulin injection simulation of patients at multiple positions or with different fat thicknesses can be realized by matching with different needle lengths, and the injection needle can be in contact with and penetrate through skin structure layers made of different materials during simulation injection; furthermore, a taught person is helped to learn selection of injection needles and injection techniques under different fat layer thicknesses, and simulation of skin pinching actions in actual injection can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a subcutaneous injection simulation education device. Background Art

[0002] Patients with mild diabetes are treated by controlling their diet or taking oral insulin, while patients with severe diabetes often need to inject their own insulin into the subcutaneous fat layer. Depending on the patient's condition, the doctor will specify a variety of plans, such as once a week injection, once a day injection, and injection before meals.

[0003] When patients inject insulin themselves, they can choose four sites for injection: the abdomen, outer thigh, outer upper arm, and outer upper buttocks.

[0004] At present, there are the following difficulties in the education of subcutaneous injection: First, it is not suitable to conduct real-life simulation in the early stage of teaching, because it is easy to cause damage to the injection site and generate fear; second, the simulation injection tool is quite different from the actual subcutaneous injection, there are multiple layers of tissue at the injection site, and it will change with the change of the injection site, and the traditional teaching aids lack relevant designs; third, it is difficult to simulate the actual injection process. Limited by the material and structure of traditional teaching aids, it is not easy to simulate the routine injection actions such as pinching the skin during injection, and it is not easy to use real insulin for injection simulation; fourth, it is difficult to achieve the reuse of teaching aids and equipment to meet long-term education needs; fifth, the insulin injection technique is related to factors such as the thickness of the fat layer and the length of the needle, and the current simulation teaching aids do not include this part of the education content. Therefore, solving the above difficulties is the design goal of this device.

[0005] It can be seen that in the diagnosis and treatment education process of diabetic patients, it is extremely important to design a subcutaneous injection simulation education device. Utility Model Content

[0006] In order to solve the technical problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a subcutaneous injection simulation education device, by setting an injection layer above the muscle simulation layer, and configuring multiple replaceable injection layers in the same set of subcutaneous injection simulation education equipment, with different needle lengths, to achieve insulin injection simulation for patients in multiple positions or with different fat thicknesses. By simulating the injection, the feeling of the injection needle contacting and penetrating the skin structure layers of different materials can be helped to learn the selection of injection needles and injection techniques under different fat layer thicknesses, and can meet the simulation of the skin pinching action in actual injection.

[0007] To achieve the above-mentioned utility model object, the technical solution of the utility model is: a subcutaneous injection simulation education device, comprising a muscle simulation layer for simulating the texture of human muscles and a plurality of replaceable injection layers arranged above the muscle simulation layer, wherein the muscle simulation layer is symmetrically provided with first connecting pieces at both ends;

[0008] Any of the injection layers includes a dermis layer and a fat layer disposed below the dermis layer, and second connecting pieces are disposed at two symmetrical ends of the fat layer, and the first connecting piece and the second connecting piece are detachably adapted to be connected;

[0009] The muscle simulation layer is configured with a fixing component.

[0010] According to a technical solution of the utility model, the fixing assembly is a fixing strap, and the two ends of the fixing strap are respectively connected to the two first connecting members;

[0011] The fixing strap is an elastic strap.

[0012] According to a technical solution of the utility model, the dermis layer, the fat layer and the muscle simulation layer are all rectangular structures.

[0013] According to a technical solution of the utility model, based on the thickness of the fat layer, the injection layer includes at least three specifications of 5mm, 12mm, and 20mm;

[0014] The dermis layer and the fat layer are arranged in close contact.

[0015] According to a technical solution of the present utility model, any of the first connecting members includes a strip slide, and the strip slide is located on the upper surface of the main body of the first connecting member;

[0016] A strip-shaped connecting hole is arranged on the side surface of the main body of the first connecting member.

[0017] According to a technical solution of the utility model, any of the second connecting members includes a connecting protrusion for connecting with the injection layer, a strip slide groove and an avoidance groove for adapting and assembling with the strip slide.

[0018] According to a technical solution of the utility model, the fixing strap is connected to the first connecting member via a buckle, and the buckle includes a male buckle and a female buckle.

[0019] According to a technical solution of the utility model, the male buckle or female buckle is connected to the strip-shaped connecting hole through a connecting ring;

[0020] The connecting ring is flat as a whole and has a racetrack-shaped cross section.

[0021] According to a technical solution of the utility model, the length dimension of the dermis layer, the fat layer and the muscle simulation layer is 100-500 mm, and the width dimension is 100-250 mm.

[0022] According to a technical solution of the utility model, the fat layer is made of soft foam polyurethane;

[0023] The muscle simulation layer is made of an elastic material with a high density and a thickness of 1.5-4 mm;

[0024] The dermis layer is made of an elastic material with a relatively low density and a thickness of 1 to 2.5 mm.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The muscle simulation layer is used to simulate the texture of human muscles, the fat layer is used to simulate the texture of human fat, and the dermis layer is used to simulate the texture and thickness of human skin. The subcutaneous injection simulation education equipment is fixed to the human abdomen, thigh or upper arm and other conventional insulin injection areas using a fixing component to simulate the patient's actual injection action and state. By setting an injection layer above the muscle simulation layer and configuring multiple replaceable injection layers in the same set of subcutaneous injection simulation education equipment, with different needle lengths, insulin injection simulation for patients in multiple positions or with different fat thicknesses can be achieved. By simulating the feeling of the injection needle contacting and penetrating skin structure layers of different materials during injection, the learners can further learn the selection of injection needles and injection techniques under different fat layer thicknesses, and can meet the simulation of skin pinching actions in actual injections.

[0027] The subcutaneous injection simulation education device of the utility model is detachably connected by the first connecting piece and the second connecting piece, so that the muscle simulation layer and the injection layer are detachably connected, which is easy to clean and replace, and is conducive to the reuse of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the drawings required for the implementation are briefly introduced below. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 An exploded view schematically showing a subcutaneous injection simulation educational device in an embodiment of the utility model;

[0030] Figure 2 A three-dimensional diagram schematically showing a complete set of subcutaneous injection simulation education equipment in an embodiment of the utility model;

[0031] Figure 3 A schematic diagram schematically shows the assembly structure of the muscle simulation layer and the first connecting member in an embodiment of the utility model;

[0032] Figure 4 Schematic representation Figure 3 A magnified view of a part in the view;

[0033] Figure 5 A schematic diagram schematically shows the assembly structure of the injection layer and the second connecting member in one embodiment of the utility model;

[0034] Figure 6 A schematic diagram schematically shows the assembly structure of the injection layer and the second connecting member in another embodiment of the utility model;

[0035] Figure 7 A three-dimensional diagram schematically showing a plurality of second connecting members in an embodiment of the present utility model.

[0036] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0037] 1. Muscle simulation layer; 2. First connecting piece; 3. Dermis layer; 4. Fat layer; 5. Second connecting piece; 6. Fixing strap; 7. Connecting ring; 8. Buckle; 21. Strip slide; 22. Strip connecting hole; 51. Connecting protrusion; 52. Strip slide groove; 53. Avoidance groove. DETAILED DESCRIPTION

[0038] The description of the embodiments of this specification should be combined with the corresponding drawings, which should be considered as part of the complete specification. In the drawings, the shape or thickness of the embodiments may be enlarged and indicated for simplification or convenience. Furthermore, the parts of each structure in the drawings will be described separately. It is worth noting that the elements not shown in the drawings or not described in words are in a form known to ordinary technicians in the relevant technical field.

[0039] The description of the embodiments herein and any reference to directions and orientations are only for the convenience of description and are not to be construed as any limitation on the scope of protection of the present invention. The following description of the preferred embodiments may involve combinations of features, which may exist independently or in combination, and the present invention is not particularly limited to the preferred embodiments. The scope of the present invention is defined by the claims.

[0040] like Figures 1 to 7 As shown, the utility model proposes a subcutaneous injection simulation education device, comprising a muscle simulation layer 1 for simulating the texture of human muscles and a plurality of replaceable injection layers arranged above the muscle simulation layer 1, and first connecting members 2 are arranged at both symmetrical ends of the muscle simulation layer 1;

[0041] Any injection layer includes a dermis layer 3 and a fat layer 4 disposed below the dermis layer 3, and second connecting members 5 are disposed at both symmetrical ends of the fat layer 4, and the first connecting member 2 and the second connecting member 5 are detachably adapted to be connected;

[0042] The muscle simulation layer 1 is provided with a fixing component.

[0043] The muscle simulation layer 1 is used to simulate the texture of human muscles, the fat layer 4 is used to simulate the texture of human fat, and the dermis layer 3 is used to simulate the texture and thickness of human skin. The subcutaneous injection simulation education device is fixed to the conventional insulin injection areas such as the abdomen, thigh or upper arm of the human body by using a fixing component to simulate the patient's actual injection action and state. By setting an injection layer above the muscle simulation layer 1 and configuring multiple replaceable injection layers in the same set of subcutaneous injection simulation education equipment, with different needle lengths, insulin injection simulation of patients in multiple positions or with different fat thicknesses can be achieved. By simulating the feeling of the injection needle contacting and penetrating skin structure layers of different materials during injection, the learners can further learn the selection of injection needles and injection techniques under different fat layer 4 thicknesses, and can meet the simulation of skin pinching actions in actual injections.

[0044] At the same time, the first connecting member 2 and the second connecting member 5 are detachably adapted to each other, so that the muscle simulation layer 1 and the injection layer are detachably connected, which is convenient for cleaning and replacement, and is conducive to the reuse of the product.

[0045] In addition, in order to fully simulate the injection process, it can be used with existing 4mm, 5mm, 6mm and 8mm injection needles for simulation operations.

[0046] In some embodiments of the present invention, the fixing assembly is a fixing strap 6, and the two ends of the fixing strap 6 are respectively connected to the two first connecting members 2;

[0047] The fixing strap 6 is an elastic strap made of fabric material such as nylon to adapt to different dimensions of the human body.

[0048] By connecting the fixed strap 6 to the abdomen, thigh or upper arm of the human body, and adjusting the length of the same strap, the product corresponding to the present application has stronger adaptability and higher comfort. At the same time, the cost of the fixed strap 6 is lower, which is conducive to reducing the production cost of the product, thereby reducing the cost of patients using the product corresponding to the present application and reducing the cost of diagnosis and treatment.

[0049] It is understandable that the subcutaneous injection simulation education device can also be fixed to various parts of the human body by bonding.

[0050] In some embodiments of the present invention, the dermis layer 3, the fat layer 4 and the muscle simulation layer 1 are all rectangular structures. By setting each layer as a rectangular structure, it has the advantage of being easy to produce.

[0051] In some embodiments of the present invention, based on the thickness of the fat layer 4, the injection layer includes at least three specifications of 5 mm, 12 mm, and 20 mm;

[0052] The dermis layer 3 and the fat layer 4 are arranged in close contact with each other.

[0053] In order to meet the fat thickness requirements of different body fat groups and different injection sites, at least three specifications of injection layers are designed: 5mm, 12mm and 20mm. Among them, 5mm, 12mm and 20mm refer to the thickness of the fat layer 4 in the injection layer, for example: the fat layer 4 is an injection layer with a thickness of 5mm.

[0054] In some embodiments of the present utility model, any first connecting member 2 includes a strip slide 21, and the strip slide 21 is located on the upper surface of the main body of the first connecting member 2;

[0055] A strip-shaped connecting hole 22 is provided on the side surface of the main body of the first connecting member 2 .

[0056] like Figures 3 to 7 As shown, in some embodiments of the utility model, any second connecting member 5 includes a connecting protrusion 51 for connecting to the injection layer, a strip slide groove 52 for adapting and assembling with the strip slide 21, and an avoidance groove 53, and the avoidance groove 53 can avoid interference with straps or other components when the product is folded or connected.

[0057] The first connecting member 2 is provided with a strip slide 21, and the corresponding second connecting member 5 is provided with a strip slide groove 52. The strip slide 21 and the strip slide groove 52 are adaptable for installation. Preferably, the cross-section of the strip slide 21 and the strip slide groove 52 is an inverted trapezoid, which can realize the detachable installation of the first connecting member 2 and the second connecting member, and at the same time can improve the stability during connection.

[0058] The second connecting member 5 is provided with a connecting protrusion 51 which is usually connected to the fat layer 4 , and a corresponding connecting position on the fat layer 4 is provided with a notch.

[0059] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the fixing strap 6 is connected to the first connecting member 2 via a buckle 8. The buckle 8 includes a male buckle and a female buckle, which is convenient for removing the fixing strap 6 for cleaning.

[0060] In some embodiments of the present utility model, the male buckle or the female buckle is connected to the strip-shaped connecting hole 22 via a connecting collar 7;

[0061] The connecting ring 7 is flat as a whole, and its cross section is in the shape of a racetrack.

[0062] In some embodiments of the present invention, the length dimension of the dermis layer 3, the fat layer 4 and the muscle simulation layer 1 is 100-500 mm, and the width dimension is 100-250 mm.

[0063] For example, when simulating the abdominal injection area, the length and width are 400*205mm; when simulating the thigh injection area, the length and width are 235*185mm; when simulating the upper arm injection area, the length and width are 158*122mm.

[0064] In some embodiments of the present invention, the fat layer 4 is made of soft foam polyurethane;

[0065] The muscle simulation layer 1 is made of a high-density elastic material with a thickness of 1.5~4mm;

[0066] The dermis layer 3 is made of an elastic material with a relatively low density and a thickness of 1 to 2.5 mm.

[0067] The epidermis and fat layer 4 are relatively soft and elastic, can be deformed by force and recover automatically after the external force disappears, and can meet the needs of the skin pinching operation (pinching the skin and fat at the injection site) during the simulation of insulin injection, thereby realizing the injection action simulation.

[0068] The muscle simulation layer 1 is harder than the fat layer 4 and the dermis layer 3. During the simulated injection, the trainee can feel the difference in texture during the insertion process, so as to learn the injection process more deeply.

[0069] The specific use process of the subcutaneous injection simulation educational device of the utility model is as follows:

[0070] 1) Install the required injection layer

[0071] Determine and install the replaceable injection layer, the specific steps are: select the thickness of the fat layer 4 required for simulation; align the two second connecting parts 5 on the fat layer 4 with the two first connecting parts 2 on the muscle simulation layer 1, that is, align the strip slide 21 of the first connecting part 2 with the strip slide groove 52 of the second connecting part 5; push the injection layer including the dermis layer 3 and the fat layer 4 to align and match the muscle simulation layer 1.

[0072] 2) Wear or place

[0073] Before conducting injection education, the product can be worn on the injection site of the model (in different educational scenarios, the model can be a dummy model, an auxiliary model or the diabetic patient being taught). The specific steps are: fit the device to the injection site of the model, open the buckle 8, wrap the fixing strap 6 around the model to fix it, buckle the buckle 8, and pull the strap to make it close to the model's body.

[0074] In addition to wearing it on the body, the device can also be placed on a table for use. Laying the device flat on the table will achieve a flat laying effect.

[0075] 3) Injection simulation and injection evaluation

[0076] The simulated injection consists of two parts: the first part is to identify the standard injection diagram on the epidermis and clarify the sequence of injection; the second part is to practice the injection action repeatedly to get familiar with the injection feeling and build up injection experience. When injecting, you can use real insulin or simulated injection liquid to complete the simulated injection.

[0077] The specific method of injection evaluation is as follows:

[0078] Correct injection:

[0079] For 5mm thick fat layer 4: When using a 4mm injection needle, there is no need to pinch the skin and inject vertically at 90°; when using a 5mm or 6mm needle, the skin needs to be pinched and injected vertically at 90°; when using an 8mm needle, the skin needs to be pinched and injected at 45°.

[0080] For 12mm thick fat layer 4: When using 4mm, 5mm, and 6mm injection needles, there is no need to pinch the skin and inject vertically at 90°; when using an 8mm needle, there is a need to pinch the skin and inject vertically at 90° or there is no need to pinch the skin and inject at 45°.

[0081] For 20mm thick fat layer 4: When using 4mm, 5mm, and 6mm injection needles, there is no need to pinch the skin and inject vertically at 90°; when using an 8mm needle, there is a need to pinch the skin and inject vertically at 90° or there is no need to pinch the skin and inject at 45°.

[0082] Wrong injection:

[0083] The needle piercing the muscle layer during injection is an injection error. Judging by the hand feeling during injection, the muscle layer component 2 is harder, and the needle pierces the muscle layer to feel a sense of obstruction, and when the needle pierces the muscle layer, it is an injection too deep.

[0084] This injection evaluation standard is not only applicable to abdominal insulin injections, but can also be applied to other injection areas such as the upper arms and thighs.

[0085] Injection simulation and injection judgment exercises can effectively improve the injection success rate and reduce the harm caused by incorrect injections.

[0086] 4) Cleaning

[0087] After simulating the injection with real insulin or simulated injection liquid, the replaceable skin layer component 1 needs to be pushed in the reverse direction to be removed, and cleaned and aired to achieve the effect of repeated use.

[0088] The above is an explanation of the implementation mode of the present application by specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of introducing the application in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present application. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details are omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0089] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "outside", "inside", "circumferential", "radial", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0090] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "fitting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0091] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A subcutaneous injection simulation educational device, characterized in that: It comprises a muscle simulation layer (1) for simulating the texture of human muscles and a plurality of replaceable injection layers arranged above the muscle simulation layer (1), wherein first connecting members (2) are arranged at both symmetrical ends of the muscle simulation layer (1); Any of the injection layers comprises a dermis layer (3) and a fat layer (4) disposed below the dermis layer (3), second connecting members (5) are disposed at two symmetrical ends of the fat layer (4), and the first connecting member (2) and the second connecting member (5) are detachably adapted to be connected; The muscle simulation layer (1) is provided with a fixing component.

2. The subcutaneous injection simulation educational device according to claim 1, characterized in that: The fixing component is a fixing strap (6), and the two ends of the fixing strap (6) are respectively connected to the two first connecting members (2); The fixing strap (6) is an elastic strap.

3. The subcutaneous injection simulation educational device according to claim 1, characterized in that: The dermis layer (3), the fat layer (4) and the muscle simulation layer (1) all have a rectangular structure.

4. The subcutaneous injection simulation educational device according to claim 1, characterized in that: Based on the thickness of the fat layer (4), the injection layer includes at least three specifications: 5 mm, 12 mm, and 20 mm; The dermis layer (3) and the fat layer (4) are arranged in close contact with each other.

5. The subcutaneous injection simulation educational device according to claim 2, characterized in that: Any one of the first connecting members (2) comprises a strip-shaped slide (21), wherein the strip-shaped slide (21) is located on the upper surface of the main body of the first connecting member (2); A strip-shaped connection hole (22) is provided on the side surface of the main body of the first connection member (2).

6. The subcutaneous injection simulation educational device according to claim 5, characterized in that: Any of the second connecting members (5) comprises a connecting protrusion (51) for connecting to the injection layer, a strip sliding groove (52) for matching and assembling with the strip sliding platform (21), and an avoidance groove (53).

7. The subcutaneous injection simulation educational device according to claim 6, characterized in that: The fixing strap (6) is connected to the first connecting member (2) via a buckle (8), and the buckle (8) comprises a male buckle and a female buckle.

8. The subcutaneous injection simulation educational device according to claim 7, characterized in that: The male buckle or female buckle is connected to the strip-shaped connecting hole (22) via a connecting ring (7); The connecting collar (7) is flat as a whole and has a racetrack-shaped cross section.

9. The subcutaneous injection simulation educational device according to claim 3, characterized in that: The dermis layer (3), the fat layer (4) and the muscle simulation layer (1) have a length dimension of 100 to 500 mm and a width dimension of 100 to 250 mm.

10. The subcutaneous injection simulation educational device according to any one of claims 1 to 9, characterized in that: The fat layer (4) is made of soft foam polyurethane; The muscle simulation layer (1) is made of an elastic material with a high density and a thickness of 1.5-4 mm; The dermis layer (3) is made of an elastic material with a relatively low density and a thickness of 1 to 2.5 mm.

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