CN210006333U

CN210006333U - Female die based on 3D printing and skin tumor excision operation teaching aid manufactured by using female die

Info

Publication number: CN210006333U
Application number: CN201920227872.XU
Authority: CN
Inventors: 陈惠勇; 杨文林; 尹嘉文
Original assignee: Second Affiliated Hospital of Guangzhou Medical University
Current assignee: Second Affiliated Hospital of Guangzhou Medical University
Priority date: 2019-02-21
Filing date: 2019-02-21
Publication date: 2020-01-31
Anticipated expiration: 2029-02-21

Abstract

The utility model discloses a skin swelling excision operation teaching aid based on 3D prints master model and uses its preparation relates to operation teaching aid technical field, and skin swelling excision operation teaching aid includes the teaching aid body, the teaching aid body includes epidermal layer, corium and fat layer, the epidermal layer corium and the fat layer is range upon range of in proper order, the epidermal layer corium and the fat layer is the silica gel component, this internal swelling simulation piece that is filled with of teaching aid. The utility model provides a epidermis layer, corium and fatty layer are the silica gel component, can simulate the hierarchy of skin more lifelikely, and can help the student to know the structure of skin more directly perceivedly, the solid sense is strong, can carry out model surgery operation repeatedly, the learning effect to improving dermatology medical student practice operation technique has very important meaning, and the swelling simulation piece can arrange according to patient's skin swelling's actual size and position, the individuation of simulation operation before the art has been realized.

Description

Female die based on 3D printing and skin tumor excision operation teaching aid manufactured by using female die

Technical Field

The utility model relates to a surgical teaching aid technical field, in particular to skin swelling thing excision surgical teaching aid.

Background

The skin is covered on the body surface and is composed of the epidermis, dermis and subcutaneous tissue, which form the largest organ of the human body. The thickness of the skin of the human body is obviously different among different individuals, different parts and even different ages. The epidermis is thickest at the palmoplantar, about 1.5 mm; while the eyelids are very thin, about 0.1 mm. On the dermis side, the thickest dorsal part can be more than 3mm, while the thinner eyelid dermis is about 0.6mm thick. The dermis is an irregular dense connective tissue in histology and is composed of fibers, a matrix and cellular components, with the fiber components being the major components. The skin has a large difference in texture due to the difference in the components of the dermal fibers, such as a part rich in collagen fibers, which has a strong tensile strength but lacks elasticity, and a part rich in elastic fibers, which has a strong elasticity. Because the skin layers have different structures and the thickness of the parts is different, the skin is difficult to simulate, and the application of the high-quality simulated skin teaching aid is particularly important for improving the practical operating skills of medical students. Clinically, common skin tumors, such as epidermal cyst and lipoma, are located in different tissues of dermis and hypodermis respectively. The skilled grasp of the clinical practice skills of skin biopsy and skin tumor excision by medical students is not only the basis for learning the diagnosis and treatment of skin diseases, but also the basic condition for ensuring that the postoperative aesthetic degree of patients is not influenced as much as possible. However, medical students lack perceptual knowledge of skin thickness at different parts and lack intuitive knowledge of skin tumors in different layers of the skin and the subcutaneous part, and medical errors are easily caused by unskilled and non-standardized operation during skin tumor excision operation, so that patients are distrusted, and disputes in the medical treatment process are easily caused. Therefore, the operation teaching model with higher simulation degree is researched and developed and applied to teaching, so that the operation capability of the practice skill of medical students is improved, and the operation teaching model has urgent practical significance in dermatology practice teaching.

The skin tumor excision operation teaching aid used in the market at present only comprises layers of rubber and sponge as basic material sheets , cannot comprehensively, intuitively and vividly present the hierarchical structure characteristics of skins at different positions due to rough materials and poor elasticity, cannot simulate the real state of the skins, is relatively stiff when used for cutting and sewing simulation, has definite limitation, is only positioned subcutaneously, is fixed in size, cannot reflect the difference of sizes, positions and textures of different tumors of different patients, and therefore limits the learning effect of student skill operation, causes the teaching effect to be visual, reduces the active learning emotion of students, has less knowledge acceptance and improves the space thinking ability slowly.

Disclosure of Invention

The utility model aims at providing kind of master models based on 3D prints, still provide skin swelling thing excision operation teaching aid, can simulate the hierarchy of skin more lifelikely.

The technical scheme adopted for solving the technical problems is as follows:

female dies based on 3D printing comprise a skin layer female die, a dermis layer female die and a fat layer female die, wherein the skin layer female die, the dermis layer female die and the fat layer female die are all formed by 3D printing, the skin layer female die is provided with a pouring cavity for pouring a skin layer, the dermis layer female die is provided with a second pouring cavity for pouring a dermis layer, and the fat layer female die is provided with a third pouring cavity for pouring a fat layer.

The utility model discloses still disclose skin swelling thing excision operation teaching aid, including the teaching aid body, the teaching aid body includes epidermal layer, corium layer and fat layer, the epidermal layer corium layer and the fat layer stacks gradually, the epidermal layer corium layer and the fat layer is the silica gel component, this internal swelling thing simulation piece that is filled with of teaching aid.

As a further improvement , the tumor simulating member is a photosensitive resin member.

As a further improvement , the tumor simulator is located between the epidermis layer and the dermis layer.

As a further improvement , the tumor simulator is located between the dermal layer and the adipose layer.

As a further improvement , the tumor simulator is spherical or oblate spheroid.

The utility model has the advantages that: the utility model discloses a epidermal layer master model is printed out respectively to the 3D printer, dermis layer master model and fat layer master model, and accessible epidermal layer master model, the epidermal layer is pour to dermis layer master model and fat layer master model, dermis layer and fat layer, the epidermal layer, dermis layer and fat layer are the silica gel component, can simulate the hierarchy of skin more lifelikely, and can help the student to know the structure of skin more directly perceivedly, the physical sensation is strong, in addition, this internal swelling simulation piece of packing into of teaching aid, be applicable to clinical simulation operation, can carry out model surgery operation repeatedly, the learning effect to improve dermatology medical student practice operation skill has very important meaning, and the swelling simulation piece can arrange according to patient's skin swelling's actual size and position, the individuation of simulation operation before the art has been realized.

Drawings

It is to be understood that the drawings described are only a portion of of the present invention, and not all of them, and that other designs and drawings may be devised by those skilled in the art without inventive faculty.

FIG. 1 is a schematic structural diagram of exemplary embodiments of the teaching aid for skin lump excision surgery;

FIG. 2 is a schematic structural diagram of a second embodiment of the skin lump excision surgical teaching aid of the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the skin lump excision surgical teaching aid of the present invention.

Detailed Description

It is to be understood that the embodiments described are merely some embodiments, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive work are within the scope of the present invention.

The utility model discloses an kind of master model based on 3D prints, including the epidermal layer master model, corium layer master model and fat layer master model, the epidermal layer master model, corium layer master model and fat layer master model are 3D and print and form, and the epidermal layer master model is equipped with the that is used for pouring the epidermal layer and pours the chamber, and the corium layer master model is equipped with the second that is used for pouring the corium layer and pours the chamber, and the fat layer master model is equipped with the third that is used for pouring the fat layer and pours the.

The utility model also discloses skin swelling excision operation teaching aids, refer to figure 1, show the utility model discloses the structure schematic diagram of kinds of embodiments of skin swelling excision operation teaching aids, skin swelling excision operation teaching aids, including the teaching aid body, the teaching aid body includes epidermal layer 1, corium layer 2 and adipose layer 3, and epidermal layer 1, corium layer 2 and adipose layer 3 are range upon range of in proper order, and epidermal layer 1, corium layer 2 and adipose layer 3 are the silica gel component, are filled with swelling simulation piece 4 in the teaching aid body.

The utility model discloses a based on 3D printing technology preparation, specifically speaking, at first, can be earlier according to the epidermis of human body, the data of corium and fat layer are modelled the corresponding master model respectively with 123D design software, and print out the epidermis master model respectively, corium master model and fat layer master model, photosensitive resin material printing is all preferred to each master model, then, pour the chamber to the of epidermis master model, liquid silica gel is poured respectively and is waited to solidify to the second of corium master model pours the chamber and the third of fat layer master model pours the chamber into, thereby produce epidermis 1, corium 2 and fat layer 3 of silica gel component, wherein, liquid silica gel chooses for use two ingredient addition type silica gel materials that shore A hardness is 0 degree, pour according to 1:1 proportional mixing after the stirring again.

In the embodiment, the epidermis layer 1 is made of pink skin two-component addition type silica gel, and the length, the width and the thickness of the epidermis layer 1 are respectively 180mm, 100mm and 2 mm; the dermis layer 2 is white two-component addition type silica gel, the length of the dermis layer 2 is 180mm, the width of the dermis layer is 100mm, and the thickness of the dermis layer is 4 mm; the fat layer 3 is yellow double-component addition type silica gel, the length of the fat layer 3 is 180mm, the width of the fat layer is 100mm, and the thickness of the fat layer is 9 mm. In addition, medical personnel can print out swelling thing simulation piece 4 according to patient's skin swelling thing size, and patient's skin swelling thing size accessible B ultrasonic scanning knows, and swelling thing simulation piece 4 adopts photosensitive resin material to print, and swelling thing simulation piece 4 is photosensitive resin structure promptly. In the present embodiment, the tumor simulator 4 has a spherical shape, and the tumor simulator 4 is specifically a sphere with a radius of 10 mm.

Finally, the epidermis layer 1, the dermis layer 2 and the fat layer 3 are sequentially bonded by using a silica gel adhesive, and the tumor simulation piece 4 is placed between the dermis layer 2 and the fat layer 3 to form a skin tumor excision surgery teaching aid, which is shown in figure 1 and used by students.

The utility model provides an epidermis 1, dermis 2 and fatty layer 3 are the silica gel component, the master model preparation based on 3D printing technique prints forms, the hierarchical structure of skin is simulated more vividly to the silica gel material, can greatly simulate characteristics such as elasticity and the ductility of skin in the performance, and fully show different positions, skin thickness between different individual and different ages, difference on structure and the texture, can help the student to know the structure of skin more directly perceivedly, the physical sensation is strong, can carry out the model surgery operation repeatedly, learning effect to improve dermatology medical student practice operation skill has very important meaning, and conventional skin swelling excision operation teaching aid is not pour through the master model, can't adopt the silica gel material, and can't insert swelling simulation piece 4, can't truly simulate skin swelling excision operation.

, the utility model discloses a mould injecting glue forming technique, but mass production, reduction in production cost, be applicable to clinical simulation operation is in addition, still can be according to patient skin swelling's actual size and position, stamp out the swelling analog based on 3D printing technique, and fill the teaching aid body with the swelling analog, the individuation of simulation operation before the art has been realized, practice through virtual operation before the art, can discover defect and imperfect that exist in the operation design, in time improve the operation scheme, know and master the problem that probably meets in the art, the solution of proposing in advance, so that the response leisurely in the art, in time handle, help reducing operation complication, save the operation time.

Based on the 3D printing technology, medical staff or medical teaching staff can directly print out a skin layer female die, a dermis layer female die and a fat layer female die, then the manufacturing of a skin tumor excision operation teaching aid can be completed quickly, the skin tumor excision operation teaching aid can assist medical students to know the skin hierarchical structure, the size, the position and the like of a tumor more intuitively, help the students to effectively learn the operation key points of skills, improve the technical level, facilitate the leisurely coping in the clinical work in the future, and enable the medical students to master the key points and the skills of the operation as soon as possible; the skin surgery training device has a very important promoting effect on skin surgery training, obviously shortens the training time of young doctors, and enhances the self-confidence of the young doctors in the surgery process.

Fig. 2 shows a schematic structural diagram of a second embodiment of the middle teaching aid body, which is different from the embodiments in the size and position of the tumor simulating piece 4, the tumor simulating piece 4 of this embodiment is oblate spheroid with a thickness of 8mm, the thickness of the tumor simulating piece 4 is only used as a reference, and is located between the epidermis layer 1 and the dermis layer 2, as shown in fig. 2.

Fig. 3 shows a schematic structural diagram of a third embodiment of the middle teaching aid body, which is different from the embodiments in the size and position of the tumor simulation part 4, the tumor simulation part 4 of this embodiment is oblate spheroid, the thickness is 2mm, and the tumor simulation part 4 is located outside the epidermis 1, and is similar to a mole, as shown in fig. 3.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

The utility model provides an skin swelling excision operation teaching aid, its characterized in that is including the teaching aid body, the teaching aid body includes epidermis (1), corium (2) and fat layer (3), epidermis (1), corium (2) and fat layer (3) stack gradually, epidermis (1), corium (2) and fat layer (3) are the silica gel component, this internal swelling simulation piece (4) of being filled with of teaching aid.
2. The skin lump excision surgery teaching aid of claim 1, characterized in that: the tumor simulation piece (4) is a photosensitive resin member.
3. The skin lump excision surgery teaching aid of claim 1 or 2, characterized in that: the tumor mimic (4) is located between the epidermis layer (1) and the dermis layer (2).
4. The skin lump excision surgery teaching aid of claim 1 or 2, characterized in that: the tumor mimic (4) is located between the dermal layer (2) and the adipose layer (3).
5. The skin lump excision surgery teaching aid of claim 2, characterized in that: the tumor simulation piece (4) is spherical or oblate spherical.
6 and female dies based on 3D printing are characterized by comprising a skin layer female die, a dermis layer female die and a fat layer female die, wherein the skin layer female die, the dermis layer female die and the fat layer female die are all formed by 3D printing, the skin layer female die is provided with a pouring cavity for pouring a skin layer, the dermis layer female die is provided with a second pouring cavity for pouring a dermis layer, and the fat layer female die is provided with a third pouring cavity for pouring a fat layer.