Artificial breast with skin structure imitating shape of human chest

Abstract

The utility model relates to the field of rehabilitation medicine manufacturing, and particularly discloses an artificial breast with a skin structure imitating the shape of a human chest. The light emitting diode comprises a skin structure and a lattice structure, the outer skin structure is a shell wrapping the crystal structure, and the lattice structure is constructed from the outer skin structure; the shape of the outer skin structure imitates the shape of the chest of a human body; and the lattice structure is constructed by modeling by using a Thiessen polygon 3D model. The skin structure and the lattice structure are obtained by printing through 3D printing equipment. By means of the 3D printing technology, in-vitro scanning is adopted, a patient breast model is constructed, and the artificial breast in the shape conforming to ergonomics is manufactured, so that the artificial breast is suitable for bras of different styles and functions.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation medicine manufacturing, specifically to a lightweight breast prosthesis with an outer skin structure that mimics the shape of a human chest and is suitable for various bras. Background Technology

[0002] Breast cancer is one of the most common cancers among women. To prevent the spread of the tumor, breast cancer patients usually undergo surgery to remove the entire breast or part of the breast tissue. To maintain spinal balance after surgery, ensure that both shoulders are at the same height, maintain a good figure, and improve physical appearance, breast cancer patients who have undergone mastectomy but have not had breast reconstruction often choose to wear breast prostheses to reconstruct the shape of their chest and restore their self-confidence.

[0003] However, traditional breast prostheses have some problems, such as being too heavy, uncomfortable, and prone to shifting, which can affect the user's physical and mental health. In addition, most existing breast prostheses are designed for a specific type of bra, requiring users to purchase different prostheses for different bras, increasing the cost and inconvenience of use.

[0004] In recent years, 3D printing technology has gradually become more widespread and applied in various industries, with successful applications in the field of rehabilitation medicine manufacturing, such as prosthetic sockets and orthotic insoles. However, there are many 3D printing materials and printing types, and choosing the right 3D printing technology to manufacture breast prostheses is a problem that needs to be solved. Furthermore, current breast prostheses manufactured using 3D printing technology, in pursuit of breathability and lightness, are generally designed with a hollow structure. This design can lead to uneven textures when the wearer wears tight clothing, making the prosthesis easily noticeable. Utility Model Content

[0005] To address this issue, this utility model discloses a lightweight breast prosthesis with an outer skin structure that mimics the shape of a human chest, suitable for various bras. It can improve the patient's experience, enhance the fit of the prosthesis, and make it easy to wear.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A breast prosthesis with an outer skin structure that mimics the shape of a human chest, comprising: an outer skin structure and a lattice structure;

[0008] The outer skin structure is a shell that encloses the crystal structure, and the crystal lattice structure is constructed from the outer skin structure;

[0009] The outer skin structure is shaped like a human chest.

[0010] The lattice structure was constructed using a Thiessen polygon 3D model.

[0011] Preferably, the outer skin structure has a thickness of about 0.5-2 mm; the thickness of each connecting line of the lattice structure is about 1-1.5 mm, and the center-to-center spacing of each lattice is about 10-30 mm.

[0012] Preferably, a C-shaped opening is provided on the side of the outer skin structure away from the center of the human body for setting a weight-compensating breast pad; the weight-compensating breast pad is an external breast pad.

[0013] Preferably, the weight-compensating breast pad is positioned at a distance of approximately 1 / 4 to 1 / 3 of the total thickness of the breast prosthesis between the weight-compensating breast pad and the outer skin structure.

[0014] Preferably, the outer skin structure and the lattice structure are obtained by printing using 3D printing equipment.

[0015] This utility model has the following beneficial effects:

[0016] This invention utilizes 3D printing technology and external scanning to construct a patient's chest model, producing a breast prosthesis with an ergonomic shape that naturally conforms to the patient's chest, is lightweight and comfortable, and does not cause any burden to the patient.

[0017] This new type of breast prosthesis features a unique design that allows it to be used with bras of different styles and functions, making it convenient for patients to choose according to their needs. From the outside, it is impossible to tell whether a breast prosthesis is being worn or not. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of an embodiment of the present invention.

[0019] Figure 2 This is a rear view structural diagram of an embodiment of the present invention.

[0020] Figure 3 This is a side view of an embodiment of the present invention. Detailed Implementation

[0021] The detailed description and technical content of this utility model are explained below with reference to the accompanying drawings. However, the drawings are provided for reference and illustration only and are not intended to limit this utility model.

[0022] This utility model discloses a method for manufacturing a breast prosthesis with an outer skin structure that mimics the shape of a human chest, which may include the following steps:

[0023] Step 1, 3D solid sampling of the patient's chest:

[0024] If the user is a patient who has undergone unilateral mastectomy or partial mastectomy, a 3D scanner is used to perform a partial physical scan of the patient's chest after surgery to obtain a 3D model of the patient's chest. Then, the patient is asked to wear a target bra, which is not limited in shape and material. A 3D scanner is used to perform a partial physical scan of the patient's chest while wearing the bra to obtain a 3D model of the patient's chest under the bra.

[0025] If the user is a patient who has undergone bilateral mastectomy, only a 3D scanner is used to perform a naked partial chest scan of the patient's postoperative chest to obtain a 3D model of the patient's naked chest.

[0026] In this process, positioning stickers are applied to the patient's chest to establish fixed points, and the coordinate systems of the two obtained 3D chest models can be aligned using the positions of the positioning stickers.

[0027] Step 2, construct the main model of the breast prosthesis:

[0028] The constructed breast prosthesis main model includes: an outer surface 3D model away from the chest cavity, an outer surface 3D model close to the chest cavity, and a lattice structure model constructed using the Thiessen polygon 3D model.

[0029] For patients undergoing unilateral mastectomy or partial mastectomy, the healthy side mirror image of the patient's naked chest 3D model is recessed 1-5mm towards the human body, leaving space for the thermal expansion of the prosthesis, resulting in a healthy side naked mirror image model. The healthy side naked mirror image model is then divided in two from the nipple. The healthy side naked mirror image model above the nipple is the 3D model of the outer surface of the prosthesis above the nipple, away from the chest cavity.

[0030] The healthy side mirror image of the patient's chest under the bra is recessed 1-5mm towards the human body to leave space for the thermal expansion of the prosthesis. The resulting healthy side mirror image under the bra is then divided into two parts from the nipple. The healthy side mirror image under the bra below the nipple is the 3D model of the outer surface of the prosthesis below the nipple, away from the chest cavity.

[0031] The 3D model of the patient's removed naked chest is recessed outward (i.e. away from the body) by 1-5mm to allow space for the thermal expansion of the prosthesis. The 3D model of the removed naked chest after the recess is the outer surface 3D model of the prosthesis near the chest cavity.

[0032] For patients who have undergone bilateral mastectomy, the shape of both breasts in the 3D model of the patient's naked chest is constructed as the outer surface 3D model of the prosthesis near the chest cavity.

[0033] The cup shape of the target bra is constructed as a 3D model of the outer surface of the prosthesis away from the chest cavity.

[0034] Step 3, Making breast prostheses:

[0035] The main model of the breast prosthesis is converted into an STL, 3mf, or obj document for output, and then printed using 3D printing equipment to obtain the breast prosthesis.

[0036] 3D printing equipment includes various devices that utilize 3D printing principles and technologies such as multi-jet melting (MJF), fused deposition modeling (FDM), stereolithography (SLA), laser sintering (SLS), digital photolithography (DLP), and 3D flatbed printing (LCD). After printing, the prosthesis undergoes steam fumigation treatment to improve the surface smoothness of the prosthesis.

[0037] The printing material can be one or more flexible materials, including but not limited to TPU, TPE, resin, silicone, etc.

[0038] Among them, breast prosthesis includes: outer skin structure and crystal structure. The outer skin structure is the shell that encloses the crystal structure, and the crystal structure is constructed from the outer skin structure.

[0039] The outer skin structure was obtained by printing a 3D model of the outer surface away from the thoracic cavity.

[0040] The lattice structure is printed based on the lattice structure model and the 3D model of the outer surface near the thoracic cavity, so that the 3D model of the outer surface near the thoracic cavity is the shape of the lattice structure near the thoracic cavity.

[0041] like Figure 1 , Figure 2 , Figure 3 The image shows an embodiment of a breast prosthesis with an outer skin structure that mimics the shape of a human chest, comprising: an outer skin structure and a lattice structure.

[0042] The outer skin structure is the shell that encloses the crystal structure, and the crystal lattice structure is constructed from the outer skin structure. The shape of the outer skin structure is the shape of the outer surface of the breast prosthesis away from the chest cavity, while the shape of the outer surface of the breast prosthesis close to the chest cavity should be the shape of the crystal lattice structure close to the chest cavity.

[0043] The outer skin structure is shaped like the human chest, and the lattice structure is constructed using a Thiessen polygon 3D model.

[0044] The outer skin structure and crystal lattice structure can be generated using the methods and steps described above.

[0045] The outer skin structure is obtained by printing a 3D model of the outer surface away from the chest cavity. The outer skin structure is the outer surface of the breast prosthesis away from the chest cavity, and its thickness is about 0.5-2mm.

[0046] The lattice structure was printed based on a lattice model and a 3D model of the outer surface near the chest cavity. The lattice model was constructed using a Thiessen polygon 3D model. A characteristic of Thiessen polygons is that points on the edge of the lattice are equidistant from discrete points within the lattice on either side. Using Thiessen polygons to form a lattice structure allows the prosthesis to withstand certain pressure, preventing overall structural deformation. The lattice structure is positioned on the side of the outer skin structure closest to the body. The thickness of each connecting line in the lattice structure is approximately 1-1.5 mm, and the center-to-center distance between each lattice is approximately 10-30 mm.

[0047] A C-shaped opening is located on the side of the outer skin structure furthest from the center of the body, allowing the user to easily remove the weight-compensating breast pad. The weight-compensating breast pad is an external pad, and its weight and volume are calculated based on the user's healthy breast or the cup size of the target bra. The weight-compensating breast pad is encased in a mesh structure.

[0048] The distance between the weight-compensating breast pad and the outer skin structure is set to be approximately 1 / 4 to 1 / 3 of the total thickness of the breast prosthesis.

[0049] The lattice structure is designed to create space for the weight-compensating breast pad, and the weight-compensating breast pad is wrapped on three sides.

[0050] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A breast prosthesis having a skin structure which imitates the outer shape of a human breast, characterized in that It includes: the skin Structure and lattice structure; The skin structure is a shell wrapped around the crystal structure, and the lattice structure is constructed from the skin structure; The shape of the skin structure is similar to the shape of the human chest; The lattice structure is modeled and constructed using a tessellation polygon 3D model.

2. The breast prosthesis with a skin structure imitating the appearance of a human breast according to claim 1, characterized in that The thickness of the skin structure is about 0.5-2mm; the thickness of each connecting line of the lattice structure is about 1-1.5mm, and the center point distance of each lattice is about 10-30mm.

3. The breast prosthesis having a skin structure imitating the appearance of a human breast according to claim 1, wherein The side of the skin structure away from the center of the human body is provided with a C-shaped opening for setting a weight compensation chest pad; the weight compensation chest pad is an external chest pad.

4. The breast prosthesis with a skin structure imitating the appearance of a human breast according to claim 3, characterized in that The position of the weight compensation chest pad is about 1 / 4-1 / 3 of the thickness of the entire breast prosthesis between the weight compensation chest pad and the skin structure.

5. The breast prosthesis having a skin structure imitating the appearance of a human breast according to claim 1, wherein The skin structure and the lattice structure are obtained by using a 3D printing device.

Images