Drawing rope type closing-up net bag set for breast reconstruction operation

Abstract

The utility model provides a drawstring type close-up net bag set for breast reconstruction surgery, which comprises prosthesis beads, a bag body, a bag mouth and a drawstring embedded in the bag mouth, and the bag body is latticed. According to the utility model, the silica gel prosthesis bead is stored through the draw-cord type closing-up net bag, so that the edge of the prosthesis is smooth and stable, the size of the prosthesis can be dynamically adjusted in an operation, and the device has the advantages of simplicity and convenience in operation, short operation time and few complications.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a drawstring type closing net bag suit used for breast reconstruction surgery. Background Art

[0002] Partial mastectomy is mainly used for breast-conserving surgery for breast cancer and excisional biopsy of benign breast lesions. After partial mastectomy, a "tumor cavity" will be formed due to the loss of glandular tissue and fat tissue, resulting in an unsightly breast shape. The size, shape, depth and range of the "tumor cavity" vary. If the breast tumor is small and less breast tissue is removed (such as removing no more than 20% of the breast volume and no more than 20-40g of breast tissue), the cavity can be basically filled by simple tissue apposition and volume shifting methods. This operation is relatively simple and does not require skin excision or major adjustment of the nipple position. However, if the tumor is relatively large or more glandular tissue is removed, the appearance outcome is usually not good. Once the amount of breast tissue removed reaches 20% or more, the traditional method of eliminating the post-excision cavity may cause significant long-term appearance deformities, including skin depression, breast deformation, and nipple-areola complex (NAC) displacement or deviation. In this case, some plastic surgery techniques are needed to eliminate the post-resection cavity and reshape the breast by freeing and pushing the adjacent breast tissue to avoid causing significant breast contour deformity. Commonly used breast tumor plastic surgery includes lateral segment resection, batwing mastopexy, central breast-conserving surgery, reduction mammoplasty, vertical mastopexy and double ring incision mastopexy. The specific choice needs to take into account multiple factors including the location of the tumor in the breast, the anatomical ptosis of the breast, the patient's expectations, the patient's overall health, and the skill level of the surgeon or surgical team.

[0003] The above methods have the following pain points and difficulties:

[0004] (1) The method of implantation is only applicable to patients who have undergone total mastectomy; it is not applicable to patients who have undergone partial mastectomy. Of course, the implant can be made smaller and placed in the "tumor cavity" of partial mastectomy, but the size, shape, depth, and range of the "tumor cavity" formed by surgery in different patients vary greatly, and it is impossible to use a small implant of the same specification. In recent years, some scholars have proposed using 3D printing to make implants of precise size, but this is only a "conceptual" idea and is difficult to put into practice for four reasons: the cost is too high; the shape and size of the "tumor cavity" during surgery are difficult to accurately predict before surgery, and may even be more unpredictable due to temporary expansion during surgery; even if the shape and size of the "tumor cavity" are determined during surgery, it takes too long to take a photo of the tumor cavity shape and send it for temporary printing of the implant, and it is impossible to wait with an open incision during surgery; the material for 3D printing is far from mature, because the implant requires internal silicone gel and external silicone rubber.

[0005] (2) Although there are many breast tumor reconstruction techniques, they are still to a certain extent compensation and "relief" for "breast shape collapse" and cannot completely solve the problem of postoperative appearance deformation. After all, a considerable amount of tissue is lost, which is an objective fact. When the mass of the resection is larger, even these plastic surgery techniques will not help. In addition, these plastic surgery techniques sometimes require a large range of freeing or mobilization, which is objectively a trauma to the patient and also increases the risk of complications such as bleeding, infection, scar contracture, nerve damage, lymphatic vessel damage, and blood circulation. At the same time, the incision design is complex, the difficulty of the operation is increased, and the operation time is also prolonged to a considerable extent (such as double ring incision or tennis racket-shaped incision, which requires nearly twice the operation time of simple breast-conserving surgery).

[0006] At the same time, prosthetic breast reconstruction generally adopts the post-pectoralis major prosthesis implantation method, that is, after the pectoralis major muscle is freed, a space is created between the pectoralis major muscle and the sternum to accommodate the prosthesis. In order to "lengthen" the pectoralis major muscle and reduce tension, the "double-plane method" is often selected clinically, and a patch is used to cover and fix the prosthesis during the operation. The purpose of the patch is to "lengthen" the pectoralis major muscle, reduce tension, and play a role in covering and fixing the prosthesis. At the same time, it provides support for cell adhesion, growth and proliferation, and induces muscle and other tissue repair.

[0007] However, the current patch has obvious operational disadvantages during breast reconstruction surgery:

[0008] (1) The size of the patch is relatively uniform, but the size and shape of the exposed part of the prosthesis that needs to be covered or fixed by the prosthesis in the biplane in different reconstruction surgeries are different. Therefore, in clinical practice, it is often encountered that the patch is too small and not enough, or the patch is too large and needs to be trimmed during surgery (extending the operation time and may not be trimmed properly). Some surgeons will fold the excess patch under the prosthesis.

[0009] (2) The shape of the patch is a flat rectangle, while the prosthesis is a curved surface. Therefore, the patch often does not fit tightly and partially folds, resulting in a poor hand feel and even more severe fibrous scarring after surgery.

[0010] (3) The surgical experience of suturing the patch to the muscle or fascia soft tissue is not good, especially when the fixation is deep and the field of vision is poor. In the process of fixing the patch, the surgeon hopes to continuously adjust its relative position with the chest wall and the prosthesis (because it is difficult to ensure that the initial placement of the patch is just right). However, once a certain edge or corner is fixed, it is not easy to adjust. Therefore, it is common in clinical practice to sew and remove the patch multiple times. Utility Model Content

[0011] In order to solve the above technical problems, the utility model provides a drawstring-type closing net bag set for breast reconstruction surgery, which is a drawstring-type automatic closing net bag, making the surgical operation simpler, the surgeon's experience better, the operation time shorter, and the complications less.

[0012] The utility model discloses a drawstring type closing net bag set for breast reconstruction surgery, comprising silicone prosthesis beads and a drawstring type closing net bag, wherein:

[0013] The silicone prosthetic beads are used to fill the tumor cavity or the drawstring-type closing net bag;

[0014] The drawstring-type closing net bag comprises a bag body, a bag opening and a drawstring embedded in the bag opening, and the bag body is in a grid shape.

[0015] Furthermore, the bag body is made of silicone rubber or titanium-treated polypropylene.

[0016] Furthermore, the bag body is in a balloon shape.

[0017] Furthermore, the diameter of the bag body is 10cm to 15cm.

[0018] Furthermore, the mesh size is 0.5 mm to 1.5 mm.

[0019] Furthermore, the pocket opening and the pocket body are integrally formed.

[0020] Furthermore, the uppermost edge of the pocket opening is double-layered, and the drawstring is embedded in the interlayer formed by the double layers.

[0021] Furthermore, in the open state, the pocket opening is in the shape of a ring with a diameter of 5 to 10 cm, and the pocket body is in the shape of an oblate spheroid.

[0022] Furthermore, the drawstring is selected from surgical sutures or the same material as the bag body.

[0023] Furthermore, the silicone prosthetic beads have at least two sizes, and the small silicone prosthetic beads are used to fill the gaps between the large silicone prosthetic beads, so that the edge of the drawstring-type closing net bag is full.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] (1) Silicone prosthetic beads can be used alone. For general breast-conserving surgery, opening 1 to 3 boxes on the operating table can basically meet the surgeon's reconstruction needs. Basically, no plastic surgery techniques are required, and no complex incisions need to be designed (each time, the simplest straight or curved incision on the breast skin surface closest to the tumor is used). There is no need to worry about affecting blood circulation due to excessive free range. The operation is simple, fast, and minimally invasive.

[0026] (2) The use of this "silicone prosthetic bead" for breast reconstruction after partial mastectomy is better than any other plastic surgery technique because it can completely fill the removed space (equivalent to zero loss of glandular volume) and the cosmetic effect is better due to the simple incision and minimal trauma.

[0027] (3) When used as a set, no matter what shape or size the tumor cavity is, the utility model can accurately fit and fill it. For breast-conserving surgery for breast cancer, the space occupied by the prosthetic beads is the same as the tumor cavity, and the pocket can objectively serve as a marker for increasing the amount of radiotherapy on the tumor bed after breast-conserving surgery. This has at least three major advantages: a. It eliminates the need to place a metal titanium clip during surgery, saving surgical time; b. It avoids artifacts caused by traditional metal titanium clips on CT or MRI (interfering with imaging effects); c. It avoids tissue scarring, fibrosis and inflammatory reactions caused by the placement of traditional metal titanium clips (affecting cosmetic effects); d. It avoids deformation of the tumor cavity and inaccurate target area delineation caused by glandular tissue rearrangement during breast-conserving surgery (affecting radiotherapy effects). BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of a silicone prosthetic bead according to an embodiment of the utility model;

[0029] Figure 2 It is a schematic structural diagram of a large silicone prosthetic bead filled with a small silicone prosthetic bead according to an embodiment of the utility model;

[0030] Figure 3 This is a structural schematic diagram of a drawstring-type closing net bag according to an embodiment of the utility model;

[0031] Figure 4 It is a structural schematic diagram of a drawstring-type closing net bag according to another embodiment of the utility model.

[0032] As shown in the figure, in order to clearly implement the structure or method of the embodiment of the present invention, specific marking symbols are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to this specific device and environment. According to specific needs, ordinary technicians in this field can adjust and modify these elements, labels, and environments, and the adjustments and modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0033] The following is a detailed description of the drawstring type closing net bag set of the utility model in combination with the specific embodiments with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is exemplary and the utility model is not limited to the specific embodiments.

[0034] like Figure 1 As shown, the silicone prosthetic bead is a spherical object composed of an outer silicone rubber 41 and an inner silicone gel 42. The surface can be designed to be smooth or rough. It can be used alone or placed inside a drawstring net bag. It can be designed to have at least two different specifications, such as a large silicone prosthetic bead with a diameter of 1.5 cm and a small silicone prosthetic bead with a diameter of 0.25 cm, so that the small silicone prosthetic bead can fill the gap between the large silicone prosthetic beads (such as Figure 2 As shown in the figure, the purpose is to make the overall shape of the breast smooth and stable. Silicone prosthetic beads retain the traditional prosthesis's concept of "filling breast vacancies with external objects" and the inherent advantages of the prosthesis itself, such as stability, safety, and texture, while also avoiding its disadvantage of "only being suitable for total mastectomy due to shape and size". During surgery, the tumor cavity formed after the removal of the tumor or lesion can be filled with a number of such "silicone prosthetic beads" of a certain size. No matter what shape or how big the tumor cavity is, it can fit accurately. Basically, there is no need to use plastic surgery techniques, no need to design complex incisions (each time, the simplest straight line or arc incision on the surface of the breast skin closest to the tumor is used), and there is no need to worry about affecting blood circulation due to excessive free range. Therefore, the use of prosthetic beads can completely make up for the removed space (equivalent to zero loss of glandular volume), and the cosmetic effect is better due to the simple incision and minimal trauma.

[0035] For relatively small tumor cavities, several "silicone prosthetic beads" can be directly placed and then sutured. For larger tumor cavities, in order to avoid too many small "silicone prosthetic beads" being "dispersed" in the tumor cavity, all the prosthetic beads can be placed in a drawstring net bag. Figure 3 As shown, it comprises: a pocket body 1, a pocket opening 2 with a drawstring closing, and a drawstring 3 embedded in the pocket opening 2, and the pocket body 1 is in a grid shape.

[0036] The mesh 11 of the bag body 1 has a size of 0.5 to 1 mm. Preferably, the bag body 1 is spherical, and the diameter of the spherical bag body 1 is 10 to 15 cm, preferably 10 cm or 15 cm. The bag body 1 is made of titaniumized polypropylene (composed of polypropylene monofilaments and titanium coatings), which has the characteristics of being light, thin and soft. It can be used in breast reconstruction to obtain a better support effect. In one embodiment, the bag body 1 can also be made of silicone rubber, that is, the same material as the outer layer of the silicone prosthetic bead.

[0037] The pocket 2 is in an open state (not pulled or tightened, such as Figure 3 The pocket opening 1 and the pocket body 2 are preferably formed in one piece. The material of the pocket opening 2 can be selected from the same material as the pocket body 1. The uppermost edge 21 of the pocket opening 2 is double-layered, and the drawstring 3 is embedded in the interlayer formed by the double-layer 21.

[0038] Figure 4 FIG. 2 also shows a schematic structural diagram of another embodiment in which the pocket opening 2 is in a closed state.

[0039] The drawstring 3 can be made of the same material, or surgical sutures can be used. Surgical sutures refer to special threads used for ligation and hemostasis, suture and tissue suture during surgical operations or trauma treatment. Since the drawstring 3 is relatively thin (0.2-0.3 mm), no pimples will form after the pocket 2 is tightened. In addition, when filling the tumor cavity, the surgeon places the pocket 2 downward (that is, the entire net bag is facing away from the skin), so that even if there are "pimples", they cannot be felt. After closing the mouth, the part of the drawstring exposed outside the pocket is used for suturing during the operation, or the excess part is cut off after tying a knot.

[0040] During use, according to the volume of the tumor cavity, prosthetic beads of appropriate quantity and specifications are placed in the bag body 1, and the net bag containing a certain amount of prosthetic beads is placed in the tumor cavity (the prosthetic beads are increased, decreased and adjusted according to the actual volume to make them basically fit the volume and shape of the tumor cavity, thereby achieving the purpose of dynamic size adjustment); pull the drawstring 3 embedded in the pocket opening 2, tighten the pocket opening 2, and tie a knot to fix the pocket opening 2; if necessary, sutures can be used to further fix the entire net bag + prosthetic beads to the tumor cavity wall as appropriate.

[0041] The suit provided by the utility model can also accommodate breast prostheses currently used clinically, and can adjust the size and shape so that the prosthesis can better fit the cavity after the operation. The drawstring net bag automatically closes, which is firstly convenient for placing the prosthesis; secondly, the volume of the net bag can be adjusted by pulling and closing the opening to adapt to the sizes of different prostheses. During the operation, the prosthesis is first placed in the bag, and then the opening is closed to an appropriate degree (the net opening is placed at the prosthesis chassis), and it is placed in a suitable position behind the pectoralis major muscle (or in front of the pectoralis muscle), and finally sutured and fixed. This method can very effectively avoid the three major disadvantages mentioned in the background technology, and it is extremely simple to operate, has a good operator experience, a short operation time, and few complications.

[0042] The above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify or improve the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or replace some of the technical features by equivalents; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A drawstring net bag set for breast reconstruction surgery, characterized in that: Includes silicone prosthetic beads and a drawstring net bag, The silicone prosthetic beads are used to fill the tumor cavity or the drawstring-type closing net bag; The drawstring-type closing net bag comprises a bag body, a bag opening and a drawstring embedded in the bag opening, and the bag body is in a grid shape.

2. The set according to claim 1, characterized in that: The material of the bag body is silicone rubber or titanium-treated polypropylene.

3. The set according to claim 1, characterized in that: The bag body is in the shape of a balloon.

4. The set according to claim 3, characterized in that: The diameter of the bag body is 10cm to 15cm.

5. The set according to claim 1, characterized in that: The mesh size is 0.5 mm to 1.5 mm.

6. The set according to claim 1, characterized in that: The pocket opening and the pocket body are integrally formed.

7. The set according to claim 1, characterized in that: The uppermost edge of the pocket opening is double-layered, and the drawstring is embedded in the interlayer formed by the double layers.

8. The set according to claim 1, characterized in that: In the open state, the pocket opening is a circular ring with a diameter of 5 to 10 cm, and the pocket body is an oblate spherical shape.

9. The set according to claim 1, characterized in that: The drawstring is selected from surgical sutures or the same material as the bag body.

10. The set according to claim 1, characterized in that: The silicone prosthetic beads are of at least two sizes, and the small silicone prosthetic beads are used to fill the gaps between the large silicone prosthetic beads, so that the edge of the drawstring-type closing net bag is full.

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