A breast endoscope simulation training device
By designing a breast endoscopy simulation training device, the thoracic cavity is constructed using an anterior chest shell and a posterior back liner, and tissue interfaces are simulated using Velcro. This solves the problem of inaccurate anatomical structures in existing training devices, providing a realistic operating experience and a low-cost, highly simulated training solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF XIAMEN UNIV
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-24
AI Technical Summary
Existing breast endoscopic surgery training devices suffer from inaccurate anatomical structures, difficulty in simulating real surgical procedures, high costs, and significant ethical risks. There is a lack of highly realistic, low-cost, and reusable simulation training devices.
A breast endoscopy simulation training device is designed, which uses an anterior chest shell and a posterior back liner to construct the thoracic cavity. Velcro is installed on the inner wall to simulate different tissue interfaces. Tissue separation is simulated by the adhesive areas of hook and textured layers. Combined with electrocautery cutting, it provides a realistic sense of operation and visual feedback.
It enables highly realistic training in laparoscopic breast surgery, providing a true sense of space and operation, avoiding the risks associated with biological materials, and is low-cost and reusable, thus reducing training costs and risks.
Smart Images

Figure CN224553905U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of surgical simulation training devices, specifically to a breast endoscopy simulation training device. Background Technology
[0002] Currently, laparoscopic breast surgery is increasingly widely used in the treatment of benign and malignant breast diseases due to its minimally invasive and aesthetically pleasing advantages. However, this surgical technique is technically challenging, with a steep learning curve, demanding extremely high levels of spatial awareness and instrument handling skills from the surgeon (especially forceps separation and precise electrosurgical cutting). Currently, training for new surgeons primarily relies on watching surgical videos, animal experiments (high cost and ethical restrictions), and performing real surgical procedures under the guidance of experienced physicians (high risk). Existing human body simulation models (such as silicone models) suffer from inaccurate anatomical structures, difficulty in simulating real surgical approaches, and an inability to effectively simulate the sensation of tissue dissection, making it difficult to provide a realistic laparoscopic surgical experience. There is a lack on the market of a highly realistic, low-cost, and reusable simulation training device specifically designed for the characteristics of laparoscopic breast surgery (such as specific approaches and layered dissection of the pectoralis major muscle space). Utility Model Content
[0003] To address the aforementioned problems, this invention provides a breast endoscopy simulation training device.
[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:
[0005] A breast endoscopy simulation training device includes an anterior chest shell and a back liner, the back liner being installed inside the anterior chest shell to form a thoracic cavity between the anterior chest shell and the back liner; the anterior chest shell is provided with a surgical channel communicating with the thoracic cavity; Velcro is detachably installed on the inner wall of the thoracic cavity, the Velcro including a textured surface layer and a hook surface layer, the hook surface layer being disposed on the cavity wall of the thoracic cavity near the anterior chest shell, the textured surface layer being adhered to the hook surface layer.
[0006] Optionally, a filler is detachably provided on the inner wall of the anterior chest shell. The filler includes a first sidewall and a second sidewall facing away from each other. The first sidewall is attached to the inner wall of the anterior chest shell, and the second sidewall serves as one side wall of the thoracic cavity. The hook-shaped layer is disposed on the second sidewall.
[0007] Optionally, the filler includes a silicone pad.
[0008] Optionally, the filling material includes an inflatable cushion that can be inflated or deflated to change its volume and thus alter the volume of the thoracic cavity.
[0009] Optionally, the surgical channels are respectively located in the armpit positions on both sides of the anterior chest shell.
[0010] Optionally, the surgical channel is equipped with a protective cover.
[0011] Optionally, the front chest shell and the back liner are detachably connected.
[0012] Optionally, the front chest shell and the back liner are detachably connected by snaps.
[0013] Optionally, the front chest shell and the back liner are interlocked by an interference fit, and the edge of the back liner is provided with a groove for a person to apply force to the groove to disengage the back liner from the front chest shell.
[0014] The technical solution provided by this utility model has the following beneficial effects:
[0015] 1. The hook side of the Velcro is used to simulate the glandular surface or a relatively loosely adhered interface, while the textured side is used to simulate the pectoral fascia surface or a tightly adhered interface. The hook and textured sides adhere together to form an adhesive area, simulating the separation surface of the retromammary space. The trainee uses forceps or separators to insert into the chest cavity and attempts to separate the textured and hook sides of the Velcro by grasping and tearing, simulating the sensation of separating loose tissue with forceps in real surgery. The trainee uses an electrocautery knife or a hook to insert into the chest cavity and uses the electrocautery knife to cut the adhesion points or perform electro-dissection along the separation surface, simulating the delicate sensation of peeling tissue with an electrocautery knife. The sensory and visual feedback of the hook and textured structure being cut / separated when the electrocautery knife contacts the Velcro can simulate the effect of tissue dissection.
[0016] 2. It accurately simulates the shape of the breast, the curvature of the chest and back, and the key axillary surgical approach, providing a realistic sense of operating space; it uses Velcro to simulate tissue, avoiding the use of biological or expensive synthetic materials, eliminating biosafety risks, and allowing the use of non-sterile training instruments; the separated Velcro layers can be restored to the training state simply by re-adheding them, with no or very low loss.
[0017] 3. The overall structure is relatively simple, the manufacturing cost is low, the size and weight are moderate, and it is easy to carry and store. Attached Figure Description
[0018] Figure 1 This is a schematic cross-sectional view of the entire embodiment;
[0019] Figure 2 This is an overall schematic diagram of this embodiment;
[0020] Figure 3 This is an overall exploded view of this embodiment;
[0021] Figure 4 This is an exploded view from another perspective in this embodiment.
[0022] Explanation of reference numerals in the attached drawings: 1. Front chest shell; 11. Surgical channel; 12. Protective sleeve; 2. Back lining; 21. Groove; 3. Chest cavity; 4. Velcro; 41. Hook and loop layer; 42. Textured layer; 5. Filler; 51. First sidewall; 52. Second sidewall. Detailed Implementation
[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0025] Reference Figure 1-4 This embodiment provides a breast endoscopy simulation training device, including an anterior chest shell 1 and a back liner 2. The back liner 2 is detachably embedded in the anterior chest shell 1, so that a thoracic cavity 3 is formed between the anterior chest shell 1 and the back liner 2. The anterior chest shell 1 is provided with a surgical channel 11 communicating with the thoracic cavity 3. A Velcro 4 is detachably installed on the inner wall of the thoracic cavity 3. The Velcro 4 includes a textured surface layer 42 and a hook surface layer 41. The hook surface layer 41 is disposed on the cavity wall of the thoracic cavity 3 near the anterior chest shell 1, and the textured surface layer 42 is adhered to the hook surface layer 41.
[0026] The hook layer 41 of the Velcro 4 simulates the glandular surface or a relatively loosely adhered interface, while the textured layer 42 simulates the pectoral fascia surface or a tightly adhered interface. The hook layer 41 and textured layer 42 adhere together to form an adhesive area, simulating the tissue separation surface of the retromammary space. The trainee uses forceps or dissecting forceps to insert into the thoracic cavity 3 and, under endoscopic monitoring, attempts to separate the textured layer 42 and hook layer 41 of the Velcro 4 by grasping and tearing motions, simulating the sensation of separating loose tissue with forceps in real surgery, such as the initial freeing of the retromammary space. Velcro 4 with different adhesive strengths can be used to simulate different adhesion states. The trainee uses an electrocautery scalpel or a hook to insert into the thoracic cavity 3 and, under endoscopic monitoring, uses the electrocautery scalpel to cut the contact adhesion points or perform electro-dissection along the separation surface, simulating the delicate sensation of dissecting tissue with an electrocautery scalpel. The sensory and visual feedback of the hook and textured structure being cut / separated when the electrocautery scalpel contacts the Velcro 4 simulates the tissue dissection effect.
[0027] The front chest shell 1 is typically made of rigid or semi-rigid materials (such as plastic, resin, or 3D printed materials) to ensure structural stability. The back lining 2 can be made of materials with a certain degree of rigidity that can provide suitable support (such as rigid foam or engineering plastics). Together, the front chest shell 1 and the back lining 2 construct a three-dimensional spatial structure that simulates the chest, giving the trainee a realistic sense of space when simulating the perspective of laparoscopic surgery outside the device.
[0028] Furthermore, a filler 5 is detachably attached to the inner wall of the anterior chest shell 1. The filler 5 includes a first sidewall 51 and a second sidewall 52 facing away from each other. The first sidewall 51 is attached to the inner wall of the anterior chest shell 1, and the second sidewall 52 serves as one side wall of the thoracic cavity 3. A hook-and-loop layer 41 is disposed on the second sidewall 52. Specifically, the filler 5 can be a latex pad. By attaching a latex pad to the inner wall of the anterior chest shell 1 and changing the size of the latex pad, the volume of the thoracic cavity 3 can be changed to simulate the body structure of different patients. In other embodiments, the filler 5 can also be an inflatable pad. The inflatable pad is attached to the inner wall of the anterior chest shell 1, and the volume of the inflatable pad is changed by inflating and deflating, thereby changing the volume of the thoracic cavity 3 to simulate the body structure of different patients.
[0029] Furthermore, surgical channels 11 are respectively located on both sides of the front chest shell 1 at the axillary positions. Having surgical channels 11 on both sides allows for simulated procedures to be performed from different locations. The surgical channels 11 are equipped with protective covers 12 to more realistically simulate the surgical environment.
[0030] Furthermore, the back liner 2 and the front shell 1 are detachably connected by snap-fit fasteners. This snap-fit connection maintains assembly stability and simplifies assembly and disassembly. Grooves 21 are provided at both the top and bottom of the back liner 2 for attaching the snap-fit fasteners. In other embodiments, the back liner 2 and the front shell 1 can be detachably connected using an interference fit. Similarly, grooves 21 can be provided along the edge of the back liner 2 to allow manual application of force to detach the back liner 2 from the front shell 1, making the operation more convenient.
[0031] During simulated surgical training:
[0032] 1. Securely place the breast endoscope simulation training device, which can be fixed with a bracket or a fixing strap; connect the endoscope to the screen.
[0033] 2. The operator inserts the teaching endoscope through surgical channel 11.
[0034] 3. The operator inserts the training forceps and electrosurgical unit through the same surgical channel 11.
[0035] 4. Under the guidance of the endoscopic image, the operator uses forceps to operate on the Velcro 4 adhesive area in the thoracic cavity 3: try to grasp and tear to separate the mutually adhesive rough surface layer 42 and hook surface layer 41, and feel the force and rigidity of "tissue separation".
[0036] 5. Under the guidance of laparoscopic images, the operator uses an electrocautery knife to cut and separate the Velcro 4 adhesive area. The separation process and state of the hook and loop structure under the action of the electrocautery knife are observed, simulating the visual effect and operational feedback of precise tissue removal.
[0037] 6. After training, the separated hook layer 41 and textured layer 42 can be re-bonded and rejoined for reuse.
[0038] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.
Claims
1. A breast endoscopy simulation training device, characterized in that: The device includes a front chest shell and a back liner, the back liner being installed inside the front chest shell to form a thoracic cavity between the front chest shell and the back liner; the front chest shell is provided with a surgical channel communicating with the thoracic cavity; and Velcro is detachably installed on the inner wall of the thoracic cavity, the Velcro including a textured surface layer and a hook surface layer, the hook surface layer being disposed on the cavity wall of the thoracic cavity near the front chest shell, the textured surface layer being adhered to the hook surface layer.
2. The breast endoscopy simulation training device according to claim 1, characterized in that: A filler is detachably provided on the inner wall of the anterior chest shell. The filler includes a first sidewall and a second sidewall facing away from each other. The first sidewall is attached to the inner wall of the anterior chest shell, and the second sidewall serves as one side wall of the thoracic cavity. The hook-shaped layer is disposed on the second sidewall.
3. The breast endoscopy simulation training device according to claim 2, characterized in that: The filler includes a silicone pad.
4. The breast endoscopy simulation training device according to claim 2, characterized in that: The filling material includes an inflatable cushion that can be inflated or deflated to change its volume and thus change the volume of the thoracic cavity.
5. The breast endoscopy simulation training device according to claim 1, characterized in that: The surgical channels are respectively located in the armpit positions on both sides of the anterior chest shell.
6. The breast endoscopy simulation training device according to claim 5, characterized in that: The surgical channel is equipped with a protective cover.
7. The breast endoscopy simulation training device according to claim 1, characterized in that: The front chest shell and the back lining are detachably connected.
8. The breast endoscopy simulation training device according to claim 7, characterized in that: The front chest shell and the back lining are detachably connected by snaps.
9. A breast endoscopy simulation training device according to claim 7, characterized in that: The front chest shell and the back lining are interlocked by an interference fit. The edge of the back lining is provided with a groove for a person to apply force to the groove to disengage the back lining from the front chest shell.