ESD operation in-vitro reproduction device
By designing an in vitro ESD surgery simulation device with a fluid supply mechanism and fixtures, and using real digestive tract tissue to simulate flowing fluid, the problem of high cost and difficulty in reusing existing devices is solved, and low-cost, high-fidelity ESD surgery training is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI RAYKEEN LASER TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-15
AI Technical Summary
Existing ESD surgical replication devices are expensive and difficult to reuse, which makes ESD surgical technology research and operation training difficult.
An in vitro reproducibility device for ESD surgery, comprising a fluid supply mechanism and an organ model, was designed. It utilizes real digestive tract tissue and simulates flowing fluid through fluid supply. Combined with fixation components, the digestive tract tissue is fixed to the organ model, enabling low-cost reusability of ESD surgery.
It improves the realism and simulation of ESD surgical training, reduces reproduction costs, simplifies the operation process, and enables the reuse of digestive tract tissues.
Smart Images
Figure CN224248204U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surgical simulation technology, and in particular to an in vitro reproduction device for ESD surgery. Background Technology
[0002] Endoscopic submucosal dissection (ESD) is a core minimally invasive technique for the treatment of early gastrointestinal tumors and precancerous lesions. It achieves en bloc resection of lesions by precisely peeling away the submucosal layer, significantly improving the 5-year survival rate of patients while preserving organ function.
[0003] ESD surgery requires the creation of a fluid-filled barrier in the submucosal layer, followed by microsurgical dissection using a high-frequency electrosurgical unit. Improper technique can easily damage the muscle layer and blood vessels, even leading to perforation. Therefore, surgeons need to master highly complex techniques such as endoscopic ultrasound localization and hemostatic clipping. Consequently, clinicians require continuous skills training and technical improvement through simulation experiments. However, most existing ESD replay devices are costly and difficult to reuse, posing challenges to ESD surgical technique research and operational training.
[0004] Based on the above, there is an urgent need for an in vitro reproduction device for ESD surgery to solve the aforementioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide an extracorporeal reproducibility device for ESD surgery, which can enable ESD surgery training at a lower cost and has high reusability.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] ESD surgery external reproduction device, including:
[0008] Fluid supply mechanism;
[0009] An organ model has a hollow inner cavity and is provided with a first opening and a second opening. A fluid supply mechanism can input fluid into the hollow inner cavity through the first opening and the fluid can flow out of the hollow inner cavity through the second opening. The organ model is also provided with a through hole communicating with the hollow inner cavity.
[0010] Preferably, the ESD surgical in vitro reproduction device further includes a fixation member for fixing the digestive tract tissue to the outside of the organ model and covering the through hole.
[0011] Preferably, the fastener includes a binding wire.
[0012] Preferably, the organ model is provided with a binding wire fixing structure on the outside.
[0013] Preferably, the fixing member includes a magnetic suction member, and the organ model is provided with a magnetic suction part, the magnetic suction member being able to press the digestive tract tissue tightly onto the organ model.
[0014] Preferably, at least three magnetic suction portions are provided on the outer periphery of the through hole.
[0015] Preferably, the organ model is provided with a plurality of through holes.
[0016] Preferably, the ESD surgical in vitro replication device further includes a first pipe, one end of which is connected to the first opening, and the other end of which is detachably connected to the fluid supply mechanism.
[0017] Preferably, the organ model includes a stomach model, and the diameter of the first tube is not less than 1 cm and not more than 2 cm.
[0018] Preferably, the organ model includes at least one of the following: stomach model, esophagus model, colorectal model, and duodenum model.
[0019] The beneficial effects of this novel in vitro ESD surgical reenactment device are as follows: Compared to animal experiments, this device can use real digestive tract tissue, improving realism, and can also simulate flowing fluid within an organ model, further enhancing simulation accuracy. Furthermore, this device does not rely on complete digestive tract tissue; as long as a portion of the digestive tract tissue can be fixed and cover the orifice, the ESD surgical procedure can be performed. This allows for the reuse of digestive tract tissue, greatly simplifying the reenactment process and reducing reenactment costs. Attached Figure Description
[0020] Figure 1 This is a first perspective view of the ESD surgical in vitro reproduction device provided by this utility model;
[0021] Figure 2 This is a first three-dimensional view of the ESD surgical in vitro reproduction device provided by this utility model when digestive tract tissue is provided;
[0022] Figure 3 This is a front view of the ESD surgical in vitro reproduction device provided by this utility model;
[0023] Figure 4 This is a second perspective view of the ESD surgical in vitro reproduction device provided by this utility model.
[0024] In the picture:
[0025] 1. Organ model; 11. Through-hole; 2. First channel; 3. Second channel; 4. Digestive tract tissue. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0030] The following is based on the appendix Figure 1 To be continued Figure 4 This invention introduces the ESD surgical reproduction device provided in this utility model.
[0031] Reference Figure 1 , Figure 2As shown, in this embodiment, the ESD surgical in vitro replication device mainly includes a fluid supply mechanism and an organ model 1. The organ model 1 has a hollow cavity and is provided with a first opening and a second opening. The fluid supply mechanism can input fluid into the hollow cavity through the first opening, and the fluid can flow out of the hollow cavity through the second opening, thereby simulating the flow of fluid inside the organ. Furthermore, the organ model 1 is provided with a through hole 11 communicating with the hollow cavity.
[0032] Specifically, during the replication process, the digestive tract tissue 4 can be fixed to the outside of the organ model 1 and covered by the through hole 11. Then, surgical instruments such as endoscopes are inserted into the organ model 1 through the first opening, allowing surgical operations to be performed on the digestive tract tissue 4 through the first opening, thereby realizing the in vitro replication of ESD surgery.
[0033] Compared to animal experiments, this in vitro ESD surgery replication device can use real digestive tract tissue 4, improving realism, and can also simulate flowing fluid within the organ model 1, further enhancing simulation accuracy. Furthermore, this device does not rely on complete digestive tract tissue 4; as long as a portion of the digestive tract tissue 4 can be fixed and cover the through-hole 11, the ESD surgery procedure can be performed. This allows the digestive tract tissue 4 to be reused, greatly simplifying the replication process and reducing replication costs.
[0034] Continue to refer to Figure 1 , Figure 2 As shown, in this embodiment, the organ model 1 is specifically a stomach model, which has a shape and size basically the same as the stomach. In use, the digestive tract tissue 4 corresponds to an isolated pig stomach or a portion of an isolated pig stomach. In principle, as long as putrefaction or inactivation does not occur, the isolated pig stomach can be reused, avoiding high model costs and thus improving economic efficiency. Before the reproduction process, the isolated pig stomach or a portion of an isolated pig stomach can be fixed to the outside of the stomach model with sutures, ensuring that the through-hole 11 is partially covered by the isolated pig stomach. Fluid is then introduced into the hollow cavity through a fluid supply mechanism. Finally, instruments such as endoscopes and injection needles are inserted through the first opening to perform different operations, such as ablation and perfusion, simulating the actual operation of ESD surgery. It should be noted that by introducing different fluids, the flow process of food, gas, and liquid in the digestive tract can be specifically simulated, thereby simulating the clinical operation experience, significantly improving the simulation accuracy, and further enhancing the training effect for doctors.
[0035] Optionally, the ESD surgical in vitro replication device also includes a fixation element for fixing the digestive tract tissue 4 to the outside of the organ model 1 and covering the through hole 11. The fixation element can be the aforementioned binding suture or surgical suture. Since the isolated pig stomach is mostly transported and preserved in slices after being cut, the isolated pig stomach can be placed on the stomach model, and then the slices can be sutured together with surgical sutures to fix the isolated pig stomach completely on the stomach model.
[0036] Of course, in some embodiments, a portion of the detached pig stomach can be placed over the outside of the stomach model, covering the through-hole 11, to meet the basic requirements for reproduction. In this case, the detached pig stomach can be fixed by means of binding wires or other methods.
[0037] Preferably, the outer side of the organ model 1 is provided with a detachable suture fixing structure, such as a suture fixing post. Exemplarily, the outer side of the organ model 1 is provided with a threaded hole, and the end of the suture fixing post is provided with an external thread, so that the suture fixing post can be threadedly connected to the organ model 1. Of course, in some embodiments, suture grooves, suture holes, or other structures can be provided on the outer side of the organ model 1; as long as they can serve the purpose of fixing or assisting in fixing the suture, they all fall within the scope of protection of this utility model. Compared to sutures and surgical sutures, the organ model 1 has higher durability and can be used multiple times. Therefore, only periodic replacement of the sutures or surgical sutures is needed for long-term experimental research.
[0038] Optionally, in some other embodiments, the fixing component also includes a magnetic suction component. Specifically, the organ model 1 is provided with a magnetic suction part, which is made of a magnetic metal material. The magnetic suction component is preferably a magnetic suction strip with a certain deformation capability. At least three magnetic suction parts are arranged around the outer periphery of the through hole 11. The magnetic strip can attract the magnetic suction parts, thereby fixing the digestive tract tissue 4 in an unfolded state to the outside of the through hole 11 and covering the through hole 11, thereby preventing the fluid in the hollow cavity from flowing out through the through hole 11, which would reduce the simulation level and also avoid the increase in cleaning costs.
[0039] Furthermore, in this embodiment, as Figure 3 As shown, the ESD surgical in vitro replication device also includes a first conduit 2, one end of which is connected to a first opening, and the other end of which is detachably connected to a fluid supply mechanism. The fluid supply mechanism includes an infusion pump, which can introduce fluid into the organ model 1 through the first conduit 2, thereby facilitating fluid input. Optionally, as... Figure 4 As shown, the ESD surgical in vitro reproduction device also includes a second pipe 3. One end of the second pipe 3 is connected to a second opening, and the other end of the second pipe 3 is connected to a water storage component. The water storage component is connected to the fluid supply mechanism to achieve the effect of circulating fluid and further reduce the economic cost of reproduction.
[0040] Preferably, when the organ model 1 is a stomach model, the diameter of the first pipe 2 is not less than 1 cm and not more than 2 cm. In this way, the first pipe 2 can also simulate the esophagus, thereby further improving the simulation effect.
[0041] Of course, in some embodiments, the organ model 1 can also be an esophageal model, a colorectal model, or a duodenal model. As long as it is a model of the digestive tract tissue 4, it falls within the scope of protection of this utility model.
[0042] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An extracorporeal device for reproducing ESD surgery, characterized in that, include: Fluid supply mechanism; An organ model (1) has a hollow inner cavity and is provided with a first opening and a second opening. The fluid supply mechanism can input fluid into the hollow inner cavity from the first opening and the fluid can flow out of the hollow inner cavity through the second opening. The organ model (1) is provided with a through hole (11) communicating with the hollow inner cavity.
2. The ESD surgical reproduction device according to claim 1, characterized in that, The ESD surgical in vitro replication device also includes a fixation member for fixing the digestive tract tissue (4) to the outside of the organ model (1) and covering the through hole (11).
3. The ESD surgical reenactment device according to claim 2, characterized in that, The fastener includes a binding wire.
4. The ESD surgical reenactment device according to claim 3, characterized in that, The organ model (1) is provided with a binding wire fixing structure on the outside.
5. The ESD surgical reproduction device according to claim 2, characterized in that, The fixing component includes a magnetic suction component, and the organ model (1) is provided with a magnetic suction part. The magnetic suction component can press the digestive tract tissue (4) tightly onto the organ model (1).
6. The ESD surgical reenactment device according to claim 5, characterized in that, At least three magnetic suction parts are provided on the outer periphery of the through hole (11).
7. The ESD surgical reenactment device according to claim 1, characterized in that, The organ model (1) is provided with a plurality of through holes (11).
8. The ESD surgical reproduction device according to claim 1, characterized in that, The ESD surgical in vitro reproduction device also includes a first pipe (2), one end of which is connected to the first opening, and the other end of which is detachably connected to the fluid supply mechanism.
9. The ESD surgical reproduction device according to claim 8, characterized in that, The organ model (1) includes a stomach model, and the diameter of the first tube (2) is not less than 1 cm and not more than 2 cm.
10. The ESD surgical reenactment device according to claim 1, characterized in that, The organ model (1) includes at least one of the following: stomach model, esophagus model, colorectal model, and duodenum model.