A simulated colonoscopy training phantom

Abstract

The utility model relates to enteroscope training model technical field, specifically for a kind of simulation enteroscope training simulation structure, including hollow outer frame, lower digestive tract model is provided with in outer frame by fixed structure;Lower digestive tract model includes successively connected large intestine model and small intestine model, the end of large intestine model is connected with outer frame by simulation anus;The lower digestive tract model of the utility model is made based on real human CT scanning data reconstruction model, and cooperate with the fixed structure of real human pelvic bone and ligament tissue composition, can highly simulate human lower digestive tract structure and enteroscope operating feeling;By being connected with external power supply, the utility model can realize the conductive function when endoscopic operating instrument, complete operation such as electrocision;The utility model can also set up training module inside lower digestive tract model, to simulate different diseases, greatly expand training range, can be applicable to the demand of different levels of physicians for different kinds of enteroscope training simulation.

Description

Technical Field

[0001] This utility model relates to the field of colonoscopy training model technology, specifically a simulated colonoscopy training structure. Background Technology

[0002] In traditional medical imaging education, medical students can only learn colonoscopy procedures through relevant imaging images, lacking practical training experience. To address this issue, existing technologies have developed various training models for colonoscopy procedures, providing a platform for medical students to conduct actual colonoscopy training.

[0003] However, the lower gastrointestinal tract models currently on the market are limited to demonstration and educational purposes. They suffer from insufficient simulation, missing key structures, and inaccurate anatomical locations, making it impossible to provide realistic tactile feedback and conduct realistic endoscopic simulation training. Furthermore, due to their relatively simplified structure, they cannot meet the training needs for complex lesion procedures and are difficult to train for targeted treatment of various lesions. Utility Model Content

[0004] The purpose of this invention is to provide a simulated colonoscopy training structure with higher simulation accuracy, which can realize targeted lesion training.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A simulated colonoscopy training structure includes an outer frame with a hollow interior. A fixing structure is located within the outer frame, and a lower digestive tract model is fixedly connected to this fixing structure. The lower digestive tract model includes a large intestine model and a small intestine model connected in sequence. The large intestine model includes a rectum model, a colon model, and a cecum model connected in sequence. An appendix model is mounted on the cecum model, which is connected to the small intestine model via an ileocecal junction model. A simulated anus is mounted on the outer frame and connected to the rectum model. The lower digestive tract model is made of conductive soft rubber material and is connected to an external power source via a power interface. The simulated ligament tissue has a mesh-like structure, with an outer layer made of flexible silicone and an embedded elastic skeleton. One end of the simulated ligament tissue is fixedly connected to the outer surface of the large intestine model via Velcro, and the other end is fixedly connected to the inner surface of the outer frame via a snap fastener.

[0007] Preferably, the fixation structure includes simulated ligament tissue, which is wrapped around the outside of the colon model.

[0008] Preferably, the fixing structure includes a pelvic model, which is fixedly installed within the external frame.

[0009] Preferably, the outer frame is a simulated human abdominal pelvic cavity structure, and the power interface is located on the outer frame.

[0010] Preferably, the lower digestive tract model has multiple training target points, and each training target point has a training module.

[0011] Preferably, the training module includes one or more combinations of a training target and training target paper.

[0012] The beneficial effects of this utility model are:

[0013] This invention employs a scenario training simulation structure based on real human anatomy. The external frame uses a highly realistic human abdominal and pelvic structure to reproduce the human morphology during colonoscopy. Internally, a three-dimensional model is reconstructed using real human lower digestive tract inflatable CT images, combined with 3D printing to create the lower digestive tract model. The lower digestive tract model includes complete small and large intestine models. Compared to traditional training devices, it can completely reproduce the lower digestive tract structure, enabling integrated training for endoscopic surgery treatments such as colonoscopy (rectal, colonic, cecal, and appendiceal lesions) and enteroscopy (small intestinal lesions), thus expanding the applicability of the training platform.

[0014] This invention uses conductive soft rubber material to make an internal lower digestive tract model, which can be powered by an external power source. It can simulate the inflation and aspiration of air during endoscopic operations while restoring the real tissue feel. Furthermore, it can be connected to instruments such as endoscopic electrosurgical units to complete complex operations such as electrocautery, further expanding the types of training applicable to this invention.

[0015] This invention sets multiple training target points within a lower gastrointestinal tract model. Training modules can be fixedly installed on these target points to simulate various training methods. The training modules can include training target paper or training targets of various shapes, which serve as lesion simulations during training. This allows for the simulation training of multiple lesions, meeting the training needs of physicians at different levels. It can significantly improve endoscopic operation skills, reduce medical risks, and has important clinical application value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the external frame and fixing structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the pelvic model structure of this utility model.

[0019] In the diagram: 1. External frame; 2. Simulated ligament tissue; 3. Pelvic model; 4. Simulated anus; 5. Rectal model; 6. Sigmoid colon model; 7. Descending colon model; 8. Transverse colon model; 9. Ascending colon model; 10. Cecum model; 11. Ileocecal junction model; 12. Appendix model; 13. Small intestine model; 14. Power interface; 15. External power supply; 16. Suction cup. Detailed Implementation

[0020] The following is a further explanation of the present invention in conjunction with specific embodiments, such as... Figure 1 As shown, this embodiment is a simulated colonoscopy training structure, including an outer frame 1; the outer frame 1 is a shell made based on the actual human abdominal pelvic cavity structure, and the interior is hollow for setting the lower digestive tract model; the outer frame 1 can provide stable support for the internal structure, and a simulated anus 4 is set at the corresponding position at its bottom end, which is used as the insertion and operation interface of the endoscope.

[0021] The simulated anus 4 is connected to the large intestine model, which includes the rectum model 5, sigmoid colon model 6, descending colon model 7, transverse colon model 8, ascending colon model 9, and cecum model 10 connected in sequence. The appendix model 12 is set on the cecum model 10, and the small intestine model 13 is connected to the cecum model 10. Both the large intestine model and the small intestine model 13 are made of conductive soft rubber structure. Specifically, the human lower digestive tract model is obtained by 3D model reconstruction based on real human inflatable CT images. Then, TPU perfusion technology is used to fill the soft rubber material into specific parts of the prefabricated model to simulate the rigidity and toughness of tissues such as the stomach wall and intestinal wall. At the same time, metallic conductive material is added to make the made lower digestive tract model conductive to further complete operations such as electrocautery. The various components of the lower digestive tract model are composed of a separable and detachable structure, which can be modularly disassembled and assembled, facilitating quick cleaning or module replacement.

[0022] like Figure 2As shown, a fixing structure is set inside the outer frame 1 to fix the lower digestive tract model within the outer frame 1, maintaining its realistic posture. The fixing structure includes simulated ligament tissue 2 and a pelvic model 3. The simulated ligament tissue 2 is a strip-shaped or mesh-like structure with a flexible silicone outer layer and an embedded elastic skeleton to enhance resilience. The simulated ligament tissue 2 is segmented and wrapped around key bending points of the large intestine model (such as the sigmoid colon, ileocecal junction, hepatic flexure, splenic flexure, etc.), and each segment is equipped with an independent fixing end to simulate the different ligaments. The suspension and constraint of the intestine; one end of each simulated ligament tissue 2 is connected to the outer surface of the large intestine model via Velcro, and the other end is connected to the inner side of the outer frame 1 via an embedded buckle, which facilitates disassembly, assembly, replacement and maintenance; micro elastic bands are also pre-embedded in the simulated ligament tissue 2, which can manually adjust the tension of the simulated ligament to change the elasticity of the simulated ligament tissue 2, simulate different training environments, and enhance the realism of operation; color differentiation or raised dot markings are set on each simulated ligament tissue 2 to distinguish different functional segments for easy maintenance and use.

[0023] like Figure 3 As shown, the pelvic model 3 is fixedly installed inside the corresponding position of the outer frame 1, providing a realistic support structure for the lower digestive tract model. It is made of high-strength ABS resin, which is convenient for 3D printing customization while providing sufficient structural strength. The pelvic model 3 is a support-like frame with anchor points on both sides and suction cups 16, which can be fixedly connected to the outer frame 1 and can also be quickly disassembled and replaced. A rubber buffer pad is set on the inner side of the pelvic model, which can improve the local support and cushioning effect of the model and prevent the model from being damaged by impact. The fixing structure is designed based on real human CT scan data and made by 3D printing technology. By simulating ligament tissue 2 and pelvic model 3, a highly realistic constraint effect of pelvis, muscles and ligaments can be provided for the lower digestive tract model, ensuring a realistic feel for endoscopic operation.

[0024] A power interface 14 is provided on the outer frame 1. The power interface 14 extends into the interior of the outer frame 1 and is in direct contact with the ascending colon model 9 in the large intestine model. The power interface 14 is connected to an external power source 15 through a power cord. The external power source 15 can supply power to the lower digestive tract model, which can realize the conductivity function when operating instruments in the endoscope.

[0025] In this embodiment, multiple training target points are also set within the lower digestive tract model, and training modules can be fixedly set on these target points. The training modules include training targets and training target paper, etc. The training targets include various structures such as hollow cylinders, which are made using 3D printing to simulate different diseases. During actual training, one or more combinations of training targets and training target paper can be selected according to specific needs to simulate various diseases and endoscopic operation scenarios, providing multiple training task extensions for colonoscopy training, such as gastroscopy, biopsy, polyp removal, etc.

[0026] The above description is merely a further explanation of the present utility model in conjunction with specific embodiments. All descriptions made do not imply any limitation on the protection scope of the present utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be determined by the protection scope of the claims.

Claims

1. A simulated colonoscopy training structure, comprising an external frame, characterized in that: The outer frame is hollow inside, and a fixing structure is set inside the outer frame. The fixing structure is fixedly connected to a lower digestive tract model. The lower digestive tract model includes a large intestine model and a small intestine model connected in sequence. The large intestine model includes a rectum model, a colon model, and a cecum model connected in sequence. An appendix model is set on the cecum model. The cecum model is connected to the small intestine model through an ileocecal junction model. A simulated anus is set on the outer frame. The simulated anus is connected to the rectum model. The lower digestive tract model is made of conductive soft rubber material and is connected to an external power source through a power interface. The fixing structure includes simulated ligament tissue, which covers the outside of the large intestine model. The simulated ligament tissue has a mesh-like structure. The outer layer of the simulated ligament tissue is made of flexible silicone, and an elastic skeleton is embedded inside. One end of the simulated ligament tissue is fixedly connected to the outer surface of the large intestine model by Velcro, and the other end is fixedly connected to the inner side of the outer frame by an insert buckle.

2. The simulated colonoscopy training structure according to claim 1, characterized in that: The fixed structure includes a pelvic model, which is fixedly installed within the external frame.

3. The simulated colonoscopy training structure according to claim 1, characterized in that: The external frame is a simulated human abdominal pelvic cavity structure, and the power interface is located on the external frame.

4. The simulated colonoscopy training structure according to claim 1, characterized in that: The lower digestive tract model is equipped with multiple training target points, and training modules are set on the training target points.

5. The simulated colonoscopy training structure according to claim 4, characterized in that: The training module includes one or more combinations of training targets and training target paper.

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