Wrapping type breast prosthesis fixing structure and implantable breast prosthesis

Abstract

The utility model relates to a wrapping type breast prosthesis fixing structure and an implantable breast prosthesis, the fixing structure comprises a bearing part, a foldable protruding part and a drainage hole group, and the bearing part is configured to be of a circular structure; the protruding part comprises a connecting base constructed to be an isosceles triangle and connecting pieces connected to the edges of the connecting base respectively, the connecting pieces comprise first connecting pieces connected to the two isosceles sides of the connecting base respectively and second connecting pieces connected to the bottom side of the connecting base, and the second connecting pieces are connected to the bearing part. An angle is formed between every two adjacent connecting pieces; the liquid drainage hole set is arranged on the bearing part and comprises a plurality of liquid drainage hole bodies. According to the wrapping type breast prosthesis fixing structure, the breast prosthesis can be supported, a doctor is prevented from cutting and forming on site during an operation, meanwhile, the wrapping type breast prosthesis fixing structure can wrap and fix the breast prosthesis in a full-covering mode, complications such as capsule contracture caused by not-in-place covering are prevented, and meanwhile sewing and fixing of pectoral muscle anterior reconstruction are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic surgery, in particular to a wrapped breast prosthesis fixing structure and an implantable breast prosthesis. Background Art

[0002] Breast cancer is the most common malignant tumor in women in China, and over 70% of breast cancer patients undergo mastectomy. Breast loss can be psychologically traumatic for patients and severely impact their quality of life. Breast reconstruction for eligible breast cancer patients has gained widespread acceptance both domestically and internationally. Prosthetic reconstruction has become the most commonly used breast reconstruction method due to its advantages, including shorter surgical time, rapid postoperative recovery, no donor site damage, and safety and reliability. Adequate tissue coverage is paramount in prosthetic breast reconstruction. To address this issue, biomaterials and synthetic materials are increasingly being used in one- or two-step implant procedures. One-step reconstruction, in particular, uses or does not incorporate muscle tissue to cover the implant, creating a better inframammary fold and reducing the incidence of capsular contracture after implantation, offering patients improved aesthetics and psychological comfort. Furthermore, biomaterials and synthetic materials are also in demand in breast augmentation and cosmetic breast surgery to reduce postoperative complications.

[0003] In recent years, biological tissue materials derived from animal or human tissue have been increasingly used in various surgical procedures, including breast augmentation, breast reconstruction, and plastic and corrective breast surgery. Because these tissue materials are typically flat membranes, surgeons must cut and shape them on-site during breast reconstruction, tailoring them to the desired area. These materials vary in size and shape, often failing to perfectly match the selected breast implant and the patient's surgical area. For example, wrinkling and folding are difficult to avoid, controlling the breast shape, and achieving an upright, reconstructed breast. Furthermore, these materials are very expensive, and surgeons rely on visual inspection during on-site cutting, which can lead to errors. This wastes material and increases surgical costs. Utility Model Content

[0004] The purpose of the present utility model is to provide a wrapped breast prosthesis fixing structure and an implantable breast prosthesis, which can solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wrapped breast prosthesis fixing structure, comprising a supporting portion, a foldable protrusion, and a drainage hole group, wherein the supporting portion is configured as a circular structure; the protrusion includes a connecting seat configured as an isosceles triangle and connecting pieces respectively connected to each edge of the connecting seat, the connecting pieces including a first connecting piece respectively connected to two isosceles sides of the connecting seat, and a second connecting piece connected to the bottom side of the connecting seat, the second connecting piece being connected to the supporting portion, and adjacent connecting pieces being arranged at an angle; the drainage hole group is provided at least on the supporting portion and includes a plurality of drainage hole bodies.

[0006] In one embodiment, the angle α between adjacent connecting pieces is set between 20-30 degrees. This angle enables the adjacent connecting pieces to be sutured together to form a convex point structure that matches the convexity of the breast prosthesis.

[0007] In one embodiment, the supporting portion and the protruding portion are connected in an integral manner. This integral structure is easy to form and the connection between them is more stable and reliable.

[0008] In one embodiment, the first connecting piece includes a first side, a second side, and a third side, wherein the first side and the second side are straight line segments, and the third side is connected between the first side and the second side, and the third side is an arc segment or a partial arc segment to adapt to the structural curve of the breast prosthesis.

[0009] In one embodiment, the third side includes an arcuate end connected to the first side and a straight end connected to the second side. The straight end and the arcuate end are connected, and the straight end is inclined toward the connecting seat. This straight end structure can cause the two ends of the protrusion to converge toward the center, thereby improving the fixation and support of the breast prosthesis.

[0010] In one embodiment, the second connecting piece is symmetrically distributed relative to the center line of the bottom edge of the connecting seat, including a fourth side and a fifth side arranged on a single side, the fourth side is used to connect with the second side, and the fifth side is connected to the side of the fourth side away from the connecting seat and extends toward the supporting portion.

[0011] In one embodiment, the angle γ between the fifth side and the fourth side is no greater than 90°, so as to form a good folding effect.

[0012] In one embodiment, the drainage holes are linearly arranged, staggered vertically on the support surface. This vertical arrangement of the drainage holes allows for adequate drainage of surgical fluid accumulation while preventing deformation of the fixed structure due to gravitational pull on the breast implant.

[0013] In one embodiment, the height of the drainage hole is set at 1±0.2 cm. Providing drainage holes with appropriate height on the supporting part can ensure that its supporting effect is not affected.

[0014] On the other hand, the present invention also provides a technical solution for an implantable breast prosthesis, comprising the wrapped breast prosthesis fixing structure and a breast prosthesis as described in any of the above solutions, wherein adjacent connecting pieces and the connecting pieces are sutured together with the supporting portion so that the wrapped breast prosthesis fixing structure is constructed into a wrapped structure that is adapted to the shape of the breast prosthesis, and the breast prosthesis is disposed within the wrapped structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The encapsulated breast prosthesis fixation structure provided by the present invention is a biodevice design based on tissue acellular matrix materials, which can provide support for breast prostheses. During various surgical procedures such as breast reconstruction, plastic surgery, and correction, the breast prosthesis is pre-sutured and wrapped with the fixed covering structure to form an implantable breast prosthesis. This avoids the need for on-site cutting and shaping by the doctor during surgery, shortens the operation time, and also allows for a better fit with the breast prosthesis.

[0017] 2. The wrapped breast prosthesis fixation structure can fully cover and fix the breast prosthesis, preventing complications such as capsular contracture due to inadequate coverage, and facilitating suture fixation of anterior pectoral muscle reconstruction.

[0018] 3. The wrapped breast prosthesis fixing structure provided by the present invention can prevent the breast prosthesis from sagging and shifting. After implantation, the biological tissue matrix material can be integrated with the breast tissue surrounding the recipient and transformed into new human tissue without any foreign matter remaining, thereby achieving a good cosmetic and plastic surgery effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic plan view of a wrap-around breast prosthesis fixing structure according to an embodiment of the present invention;

[0020] Figure 2 This is a partial structural diagram of a wrapped breast prosthesis fixing structure in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of a simulated folded state of the wrapped breast prosthesis fixing structure in an embodiment of the present invention;

[0022] The meaning of each number in the figure is:

[0023] 1. Supporting portion; 2. Protruding portion; 21. Connecting seat; 22. First connecting piece; 221. First side; 222. Second side; 223. Third side; 2231. Arc end; 2232. Straight end; 23. Second connecting piece; 231. Fourth side; 232. Fifth side; 3. Drainage hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to 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 invention.

[0026] The wrapped breast prosthesis fixing structure provided by the utility model is a planar structure formed by cutting a membrane material. When used, an adapted breast prosthesis is placed on the planar breast prosthesis fixing structure, and then the corresponding adjacent structures are sutured and connected.

[0027] The membrane material in this utility model is preferably an acellular tissue matrix material. This material is made from human skin tissue, intestinal membranes, diaphragms, tendons, and bladders donated after death, through a series of steps including decellularization, viral inactivation, and sterilization. Alternatively, the membrane material can be made from porcine, bovine, equine, or any other non-human mammalian skin tissue, through a series of steps including decellularization, immunogenicity reduction, viral inactivation, and sterilization. The membrane material is preferably 0.2-0.8 mm thick to ensure adequate support.

[0028] In other embodiments not shown, the membrane material may also be made of other thin sheet materials such as titanium mesh material.

[0029] References below Figure 1 、 Figure 2 The wrapped breast prosthesis fixing structure provided by the embodiment of the present utility model is described in detail.

[0030] like Figure 1 As shown, the wrapped breast prosthesis fixing structure provided in this embodiment includes a supporting portion 1, a protruding portion 2, and a drainage hole group provided on the supporting portion 1. The supporting portion 1 and the protruding portion 2 are formed by cutting and forming a whole piece of membrane material as an integral molding structure. This structure is easy to mold and the connection between them is more stable and reliable.

[0031] Specifically, the supporting portion 1 is configured as an integrated circular structure. In the application in conjunction with the breast prosthesis, it corresponds to and covers the back plane of the breast prosthesis and is used to support the back structure of the breast prosthesis. The radius of the supporting portion 1 is usually set to 5-8 cm, so as to be able to cover the back of the breast prosthesis. The specific size can be set according to the area of ​​the back plane of the breast prosthesis. In this embodiment, setting the supporting portion 1 as an integrated circular structure can reduce the suturing time and make it more convenient to use. At the same time, setting the supporting portion 1 as a circle matches the planar features of the breast prosthesis, aiming to form a full coverage package for the back of the breast prosthesis, preventing complications such as capsular contracture due to inadequate coverage, and facilitating the suturing and fixation of the anterior pectoral muscle reconstruction. On the other hand, because the shape of the supporting portion 1 is highly compatible with the breast prosthesis to be implanted, it is more convenient to implant.

[0032] The protrusion 2 includes a connecting seat 21 with a planar triangular structure, and three groups of connecting pieces that are integrally formed and connected to the three edges of the connecting seat 21. In this embodiment, the connecting seat 21 is an isosceles triangle, preferably an equilateral triangle with a side length of 2-3 cm. The connecting piece further includes a first connecting piece 22 respectively connected to the two isosceles sides of the connecting seat 21, and a second connecting piece 23 connected to the bottom side of the connecting seat 21, wherein the second connecting piece 23 is integrally formed and connected to the supporting portion 1.

[0033] When used in conjunction with a breast prosthesis, adjacent connecting pieces are sutured together to form a convex covering surface that matches the convex surface of the breast prosthesis. The matched breast prosthesis is placed on the supporting portion 1, and the second connecting piece 23 is folded over at the connection position with the supporting portion 1, so that the formed convex covering surface is folded over and covers the convex surface of the breast prosthesis. The edge of the first connecting piece 22 is sutured to the supporting portion 1, thereby forming a fully wrapped fixation for the breast prosthesis.

[0034] More specifically, in the protruding portion 2, adjacent connecting pieces are arranged at an angle so that a convex point can be formed after being sutured together. The angle α is positively correlated with the convexity of the breast prosthesis and is usually set between 20-30 degrees.

[0035] In this embodiment, the protrusions 2 are symmetrically distributed relative to the bottom midline of the triangular connecting seat 21, so that the formed wrapped breast prosthesis fixing structure can be more regular and easier to cut and sew.

[0036] like Figure 2 As shown, the first connecting piece 22 further includes a first side 221, a second side 222, and a third side 223. The first side 221 is a straight line segment and is the connecting side of the two first connecting pieces 22. The second side 222 is a straight line segment and is the connecting side with the second connecting piece 23. The third side 223 is provided on the opposite side of the connecting seat 21 and is connected between the first side 221 and the second side 222 for suturing with the supporting portion 1. The third side 223 is generally an arc segment that matches the structural curve of the breast prosthesis, and may also be a combination of multiple segments of local arc segments.

[0037] In a preferred implementation, the third side 223 further includes an arc end 2231 and a straight end 2232. The arc end 2231 is connected to the first side 221, and its arc design is adapted to the structural curve of the breast prosthesis; the straight end 2232 is connected to the arc end 2231 and connected to the second side 222, and the straight end 2232 is inclined toward the connecting seat 21. The angle β formed between the straight end 2232 and the second side 222 is no greater than 90°, and is preferably set to between 80-90°. The structural arrangement of the straight end 2232 can make the two side ends of the protrusion 2 form an effect of converging toward the center, thereby better fixing and supporting the breast prosthesis. In this embodiment, the length L1 of the first side 221 is greater than the length L3 of the second side 222. Specifically, the length L1 of the first side 221 is set to 8-10 cm, and the length L3 of the second side 222 is set to 6-8 cm, specifically according to the length and width specifications of the teardrop-shaped breast prosthesis. The length L2 of the straight end 2232 of the third side 223 is set to 5-7 cm, specifically according to the circumference of the teardrop-shaped breast prosthesis.

[0038] Furthermore, the second connecting piece 23 is symmetrically distributed relative to the midline of the bottom edge of the triangular connecting seat 21, including a fourth side 231 and a fifth side 232 arranged on a single side, wherein the fourth side 231 is the connecting side with the second side 222, and the length L4 of the fourth side 231 is equal to the length L3 of the second side 222; the fifth side 232 is connected to the fourth side 231 on the side away from the connecting seat 21, and is set at an angle to the fourth side 231, and the angle γ is not greater than 90°, and is preferably set to between 80-90°. The other end of the fifth side 232 extends toward the direction close to the supporting portion 1, and converges on the circumference of the supporting portion 1 to form two intersection points A and B respectively. The distance between AB roughly corresponds to the radius of the supporting portion 1, and the length L5 of the fifth side 232 is set at 2.5-3.5cm.

[0039] See also Figure 1The drainage hole group includes multiple groups of drainage holes 3. In this embodiment, the drainage holes 3 are constructed as a linear structure, each drainage hole 3 being staggered vertically on the plane of the support portion 1. The height of the drainage holes 3 is set to 1±0.2 cm, the spacing between each row of drainage holes 3 is set to 1±0.2 cm, and the vertical spacing between each drainage hole 3 is no greater than 1 cm. This vertical structure of the drainage hole group can fully drain surgical fluid while also preventing deformation of the fixed structure caused by the weight of the breast implant. Preferably, the drainage holes 3 can also be distributed on the foldable second connecting piece 23 to further enhance the drainage effect of the accumulated fluid.

[0040] Another embodiment of the present invention provides a technical solution for an implantable breast prosthesis, specifically in combination with Figure 3 The implantable breast prosthesis includes the aforementioned wrapped breast prosthesis fixing structure and a breast prosthesis. Adjacent connecting pieces and the connecting pieces are sutured together with the supporting portion 1, so that the wrapped breast prosthesis fixing structure is configured to conform to the shape of the breast prosthesis to be fixed. The breast prosthesis to be fixed is disposed within the wrapped structure. The suture connection can utilize either permanent or degradable surgical sutures, and can employ either single-needle or continuous suturing methods, depending on actual needs.

[0041] Specifically, during various surgical operations such as breast reconstruction, plastic surgery, and correction, the breast prosthesis is pre-sutured and wrapped using the wrapped breast prosthesis fixing structure provided by the above embodiment to form an implantable breast prosthesis, which is then implanted into the body and fixed by suture.

[0042] The implantable breast prosthesis provided in this embodiment, through its wrap-around breast prosthesis fixation structure, fully covers and secures the breast prosthesis, preventing complications such as capsular contracture caused by inadequate coverage and facilitating suture fixation during anterior pectoral muscle reconstruction. Furthermore, after implantation, the acellular tissue matrix material integrates with the surrounding breast tissue, transforming into new tissue without any foreign matter remaining.

[0043] On the other hand, in some breast reconstruction and plastic surgery, complications such as dislocation, deformity, poor coverage, and wrinkles are prone to occur. The wrapped breast prosthesis fixation structure provided in this embodiment can also be used to prevent related complications. For example, this structure can be used to control the position of the breast prosthesis, just like an implanted bra, to better support and maintain the position of the breast prosthesis, thereby reducing the relaxation caused by pressure and tension on the patient's own tissues.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A wrapped breast prosthesis fixing structure, characterized in that: include: The supporting portion (1) is configured as a circular structure; The foldable protrusion (2) comprises a connecting seat (21) constructed as an isosceles triangle and connecting pieces respectively connected to the edges of the connecting seat (21), wherein the connecting pieces comprise a first connecting piece (22) respectively connected to two isosceles sides of the connecting seat (21) and a second connecting piece (23) connected to the bottom side of the connecting seat (21), wherein the second connecting piece (23) is connected to the supporting portion (1), and adjacent connecting pieces are arranged at an angle; The drainage hole group is at least arranged on the supporting portion (1) and includes a plurality of drainage hole bodies (3).

2. The wrapped breast prosthesis fixing structure according to claim 1, characterized in that: The angle α between adjacent connecting pieces is set between 20-30°.

3. The wrapped breast prosthesis fixing structure according to claim 1, characterized in that: The supporting portion (1) and the protruding portion (2) are integrally connected.

4. The wrapped breast prosthesis fixing structure according to claim 1, characterized in that: The first connecting piece (22) comprises a first side (221), a second side (222) and a third side (223), wherein the third side (223) is connected between the first side (221) and the second side (222), and the third side (223) is an arc segment or a partial arc segment.

5. The wrapped breast prosthesis fixing structure according to claim 4, characterized in that: The third side (223) includes an arc end (2231) connected to the first side (221) and a straight end (2232) connected to the second side (222); the straight end (2232) and the arc end (2231) are connected, and the straight end (2232) is inclined in a direction close to the connecting seat (21).

6. The wrapped breast prosthesis fixing structure according to claim 1, characterized in that: The second connecting piece (23) is symmetrically distributed relative to the center line of the bottom edge of the connecting seat (21), and includes a fourth edge (231) and a fifth edge (232) arranged on one side, wherein the fourth edge (231) is used to connect with the second edge (222), and the fifth edge (232) is connected to the side of the fourth edge (231) away from the connecting seat (21) and extends in a direction close to the supporting portion (1).

7. The wrapped breast prosthesis fixing structure according to claim 6, characterized in that: The angle γ between the fifth side (232) and the fourth side (231) is not greater than 90°.

8. The wrapped breast prosthesis fixing structure according to claim 1, characterized in that: The drainage holes (3) are constructed as a linear structure, and the drainage holes (3) are staggeredly arranged on the plane of the supporting portion (1) in a vertical direction.

9. The wrapped breast prosthesis fixing structure according to claim 1, characterized in that: The height of the drainage hole (3) is set at 1±0.2 cm.

10. An implantable breast prosthesis, characterized in that: The invention comprises the wrapped breast prosthesis fixing structure and a breast prosthesis according to any one of claims 1 to 9, wherein adjacent connecting pieces and the connecting pieces are sutured and connected to the supporting portion (1) so that the wrapped breast prosthesis fixing structure is constructed as a wrapped structure adapted to the shape of the breast prosthesis, and the breast prosthesis is arranged within the wrapped structure.

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