A breast minimally invasive rotary cutting training simulation device
The breast minimally invasive excision training simulation device provides a versatile training platform under direct vision and ultrasound guidance, solving the problems of high skill requirements and high costs associated with breast minimally invasive excision surgery, enabling rapid skill mastery and reducing the risk of complications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AFFILIATED ZHONGSHAN HOSPITAL OF DALIAN UNIV
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-12
AI Technical Summary
Minimally invasive breast excision surgery requires high skill levels from clinicians, has a long learning curve, and carries high labor costs and the risk of complications. Existing training equipment is insufficient to effectively shorten the learning curve and reduce costs.
A minimally invasive breast biopsy training simulation device was designed, including a transparent main body box and a fixation box, with built-in simulated glands and needle insertion tunnels to simulate tumors. It supports training under direct vision and ultrasound guidance and provides a versatile operating platform.
Through repeated practice, doctors can quickly master the positional relationship between the tumor and surrounding tissues under ultrasound guidance, shorten the learning curve, and reduce the risk of surgical complications and labor costs.
Smart Images

Figure CN224354913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical simulation training technology, and in particular to a minimally invasive breast biopsy training simulation device. Background Technology
[0002] In clinical practice, minimally invasive breast excision is a commonly used method for removing benign breast tumors less than 3 cm in diameter. This surgery must be performed percutaneously under ultrasound guidance throughout. Clinicians must rely on ultrasound to determine key operational points such as tumor location, needle depth, excision angle, residual tumor, and postoperative hemostasis, thereby avoiding complications such as skin damage, bleeding, pneumothorax, and residual tumor. However, mastering this type of minimally invasive surgery demands extremely high skill levels from clinicians. On one hand, doctors must be proficient in controlling the structure and positional relationship between the tumor and surrounding tissues under ultrasound guidance, as well as the positional relationship between the excision device and the tumor and surrounding tissues. This requires a long learning curve and repeated practice to master the relevant procedures. On the other hand, the size, hardness, location, and shape of tumors are highly variable, further increasing the demands on the doctor's ultrasound-guided surgical skills and the use of the excision device.
[0003] Inexperienced operation not only increases the risk of complications such as tissue damage, residual tumor, and postoperative bleeding, but also prolongs the operation time. At the same time, in order to ensure the smooth progress of the operation, a large number of surgical team members are often required, which directly leads to high labor costs.
[0004] Therefore, there is an urgent need for surgical demonstrations and clinical skills training in minimally invasive breast excision surgery to help doctors shorten the learning curve, reduce surgery time and team staffing, thereby reducing labor costs. Utility Model Content
[0005] In view of this, the present invention provides a breast minimally invasive excision training simulation device.
[0006] Therefore, the present invention provides the following technical solution:
[0007] A minimally invasive breast biopsy training simulation device includes a transparent main body box, a first fixation box, a second fixation box, a third fixation box, and a fourth fixation box. The first to fourth fixation boxes are all transparent cuboid structures without a top and with an opening on one short side. The first to fourth fixation boxes are all installed on the upper side of the main body box. The first fixation box and the second fixation box are fixed together by adhering to their adjacent long sides, and the short side of the first fixation box is adhering to the short side of the third fixation box, and the short side of the second fixation box is adhering to the short side of the fourth fixation box. Transparent simulated glands are fixed inside the first to fourth fixation boxes.
[0008] Furthermore, the simulated gland is provided with a transparent needle insertion tunnel and a transparent tumor-bearing area. The needle insertion tunnel is connected to the tumor-bearing area, and the tumor-bearing area is filled with a simulated tumor.
[0009] Furthermore, the outer surface of the simulated gland is made of transparent and colorless silicone rubber, and the interior is made of transparent and colorless silicone gel; the inner walls of the needle insertion tunnel and the tumor-bearing area are both made of transparent and colorless silicone rubber; the simulated tumor is made of pinkish-red silicone rubber.
[0010] Furthermore, the main body box and the first to fourth fixing boxes are all made of acrylic material.
[0011] Furthermore, the main body box contains an acrylic material plate with the same thickness as the main body box, and the plate is distributed in a grid pattern.
[0012] Furthermore, the length of the needle insertion tunnel is 70-72mm or 100mm-102mm, the width is 10mm-12mm, and the angle with the upper surface of the simulated gland is 45° or 25°.
[0013] Furthermore, the simulated tumor is round or oval in shape.
[0014] Furthermore, the diameter of the circular simulated tumor is 11mm-13mm or 21mm-23mm, and the minor axis of the elliptical simulated tumor is 11mm-13mm, and the major axis is 21mm-23mm.
[0015] Furthermore, the width spacing between adjacent grids of the acrylic material plate is 30mm-32mm, and the length spacing is 50mm-52mm.
[0016] Advantages and positive effects of this utility model:
[0017] This device, simulating the structure of the human breast, provides clinicians with a simulated platform for repeated practice. The main body and four mounting boxes are reusable. Each of the four mounting boxes, along with the simulated glands within them, represents one of the four quadrants of a human breast, allowing clinicians to utilize a variety of simulated operating methods by changing the simulated glands. The device can be used under direct visualization or ultrasound guidance. Clinicians can first receive training in using the excision simulator under direct visualization, and then combine this with ultrasound guidance for further training. Repeated practice of the simulated excision technique under both direct visualization and ultrasound guidance effectively shortens the learning curve. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This utility model provides an assembly diagram of the main body box and fixing box structure of a minimally invasive breast biopsy training simulation device.
[0020] Figure 2 The structural diagram of the first fixing box of the breast minimally invasive excision training simulation device provided by this utility model.
[0021] Figure 3 The structural diagram of the third fixing box of the breast minimally invasive rotary cutting training simulation device provided by this utility model.
[0022] Figure 4 This invention provides a structural diagram of a simulated glandular tissue for a minimally invasive breast excision training simulation device.
[0023] Figure 5 This invention provides a simulated gland and its internal structure diagram for a minimally invasive breast excision training simulation device.
[0024] Figure 6 This invention provides a structural diagram of a simulated gland and its internal simulated mass in a minimally invasive breast biopsy training simulation device.
[0025] In the diagram: 1. First fixation box; 2. Second fixation box; 3. Third fixation box; 4. Fourth fixation box; 5. Main body box; 6. Simulated gland; 7. Needle insertion tunnel; 8. Tumor bearing area; 9. Simulated tumor. Detailed Implementation
[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0027] This invention provides a minimally invasive breast biopsy training simulation device, such as... Figure 1-3As shown, the main structure of the device includes a transparent main body box 5, a first fixing box 1, a second fixing box 2, a third fixing box 3, and a fourth fixing box 4. The main body box 5 and the first to fourth fixing boxes 4 are all made of acrylic material. Acrylic material has good transparency and stability, clearly showing the internal structure, and is easy to clean and reuse. The first to fourth fixing boxes 4 are all transparent cuboid structures without a top and open on one short side, and they are all installed on the upper side of the main body box 5. The specific installation position relationship is as follows: the first fixing box 1 and the second fixing box 2 are fixed by adhering to their adjacent long surfaces; the short surface of the first fixing box 1 is adhering to the short surface of the third fixing box 3; and the short surface of the second fixing box 2 is adhering to the short surface of the fourth fixing box 4. This layout design allows the four fixing boxes to correspond to the four quadrants simulating human breast glands, providing doctors with a training scenario close to clinical practice.
[0028] Inside the main body box 5, there is an acrylic material plate with the same thickness as the main body box 5. The plate is arranged in a grid pattern, with the width spacing between adjacent grids being 30mm-32mm and the length spacing being 50mm-52mm. The grid structure can improve the stability of the main body box 5, while preventing the overall structure of the device from becoming too heavy.
[0029] like Figure 4 As shown, transparent simulated glands 6 are fixed inside the first to fourth fixation boxes 4. The simulated glands 6 are made of transparent colorless silicone rubber, and their texture and feel are similar to human breast tissue, which can provide doctors with a realistic operating experience.
[0030] like Figure 5-6 As shown, the simulated gland 6 contains both a transparent needle insertion tunnel 7 and a transparent tumor-bearing area 8. The needle insertion tunnel 7 is connected to the tumor-bearing area 8, and the tumor-bearing area 8 is filled with a simulated tumor 9. The outer surface of the simulated gland 6 is made of transparent, colorless silicone rubber, and the interior is made of transparent, colorless silicone gel. The inner walls of the needle insertion tunnel 7 and the tumor-bearing area 8 are both made of transparent, colorless silicone rubber. The simulated tumor 9 is made of pinkish-red silicone rubber. Silicone rubber has good elasticity and sealing properties, which can simulate real tissue channels and the environment in which the tumor is located.
[0031] The needle insertion tunnel 7 comes in various sizes, with a length of 70mm-72mm or 100mm-102mm and a width of 10mm-12mm. The angle between the tunnel and the upper surface of the simulated gland 6 is 45° or 25° to simulate needle insertion scenarios at different depths and angles, meeting diverse training needs.
[0032] The simulated tumor 9 can be round or oval. The round simulated tumor 9 has a diameter of 11mm-13mm or 21mm-23mm; the oval simulated tumor 9 has a minor axis of 11mm-13mm and a major axis of 21mm-23mm. This simulates benign breast tumors of different sizes and shapes, improving doctors' ability to handle various tumor situations.
[0033] This simulation device allows for training under either direct visualization or ultrasound guidance. Doctors can first train using the rotary cutting simulator under direct visualization to master the technique, and then combine it with ultrasound guidance for further training. Through repeated practice of simulated rotary cutting techniques under both direct visualization and ultrasound guidance, doctors can quickly master the positional relationship between the tumor and surrounding tissues, as well as between the rotary cutting device and the tumor and surrounding tissues under ultrasound guidance. This effectively shortens the learning curve, reduces the risk of surgical complications, and lowers surgical time and labor costs.
[0034] In addition, the four fixation boxes are reusable, and by replacing the simulated gland 6, doctors can be provided with an operating platform to simulate various tumor conditions, further improving the comprehensiveness and effectiveness of training.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A minimally invasive breast biopsy training simulation device, characterized in that, The system includes a transparent main body box (5), a first fixing box (1), a second fixing box (2), a third fixing box (3), and a fourth fixing box (4). The first to fourth fixing boxes (4) are all transparent cuboid structures without a top and with a short side opening on one side. The first to fourth fixing boxes (4) are all installed on the upper side of the main body box (5). The first fixing box (1) and the second fixing box (2) are fixed by fitting adjacent long sides together. The short side of the first fixing box (1) is fitted with the short side of the third fixing box (3), and the short side of the second fixing box (2) is fitted with the short side of the fourth fixing box (4). Transparent simulated glands (6) are fixed inside the first to fourth fixing boxes (4).
2. The breast minimally invasive excision training simulation device according to claim 1, characterized in that, The simulated gland (6) is provided with a transparent needle insertion tunnel (7) and a transparent tumor-bearing area (8). The needle insertion tunnel (7) is connected to the tumor-bearing area (8), and the tumor-bearing area (8) is filled with a simulated tumor (9).
3. The breast minimally invasive excision training simulation device according to claim 2, characterized in that, The outer surface of the simulated gland (6) is made of transparent and colorless silicone rubber, and the inside is made of transparent and colorless silicone gel. The inner walls of the needle insertion tunnel (7) and the tumor bearing area (8) are made of transparent and colorless silicone rubber. The simulated tumor (9) is made of pinkish-red silicone rubber.
4. The breast minimally invasive excision training simulation device according to claim 1, characterized in that, The main body box (5) and the first to fourth fixing boxes (4) are all made of acrylic.
5. The breast minimally invasive excision training simulation device according to claim 4, characterized in that, The main body box (5) contains an acrylic material plate with the same thickness as the main body box (5), and the plate is distributed in a grid pattern.
6. The breast minimally invasive excision training simulation device according to claim 2, characterized in that, The needle insertion tunnel (7) is 70-72mm long or 100mm-102mm wide and has an angle of 45° or 25° with the upper surface of the simulated gland (6).
7. The breast minimally invasive excision training simulation device according to claim 2, characterized in that, The simulated tumor (9) is round or oval in shape.
8. The breast minimally invasive excision training simulation device according to claim 7, characterized in that, The diameter of the circular simulated tumor (9) is 11mm-13mm or 21mm-23mm, and the minor axis of the elliptical simulated tumor (9) is 11mm-13mm and the major axis is 21mm-23mm.
9. The breast minimally invasive excision training simulation device according to claim 5, characterized in that, The spacing between adjacent grids in the acrylic material plate is 30mm-32mm in the width direction and 50mm-52mm in the length direction.