Intracerebral endoscopic training device

Abstract

To provide a cerebral model and associated training device, which can be used for training in endoscopic surgery for brain disease treatment.SOLUTION: An intracerebral endoscopic training device is provided, comprising a cerebral model unit made of a synthetic resin, and a head model unit designed to removably accommodate the cerebral model unit, where a simulated lesion is provided inside the cerebral model unit.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a cerebral model and a training device that can be used for training in endoscopic surgical procedures for treating brain diseases. The present invention is particularly useful for training in treatments such as biopsy and resection of intracerebral tumors. [Background technology]

[0002] Until now, endoscopic surgery training has not involved the use of medical models to treat diseases within the brain. From 2022, brain biopsies and disease removal surgery using endoscopes will be covered by insurance in Japan, enabling a more practical approach and it is expected that safer and more accurate surgery will be realized.

[0003] For brain diseases, tumor removal surgery in particular has traditionally involved physically moving brain tissue through craniotomy to access and remove the tumor, placing a heavy physical burden on the patient. Also, biopsies for brain diseases have only involved the removal of a small amount of tissue from the target area using a needle-like surgical instrument, which carries a certain degree of risk of bleeding.

[0004] In endoscopic surgery, the location of the tumor is identified using a navigation system, a cylindrical instrument is inserted through the skull to the tumor location, and an endoscope is inserted using this as a guide to perform a biopsy or resection surgery, etc. In particular, in surgery to remove a tumor, it is necessary to separate normal tissue and remove abnormal tissue.

[0005] This has created a need for more realistic models for practicing surgery. Conventional models have limitations when simulating complex surgeries. Therefore, more sophisticated and realistic models are needed to practice removing tumors. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2019-53264 A [Non-patent literature]

[0007] [Non-Patent Document 1] https: / / madewithunity.jp / info / clip-sim / Summary of the Invention [Problem to be solved by the invention]

[0008] While medical technology using intracranial endoscopes is expected to become more widespread in the future, suitable training models for endoscopic biopsy of intracranial disease and resection of diseased areas have not yet been devised. In addition, although there are VR devices that use computer graphics and VR technology and are used in cerebral aneurysm surgery, they are not able to faithfully reproduce the movement and feel of actual surgical instruments. [Means for solving the problem]

[0009] As a result of thorough investigation into the above-mentioned problems, the inventors have been able to provide an endoscopic training device that reproduces a diseased area inside a cerebral model, based on knowledge gained from the manufacture of the medical model described in Patent Document 1.

[0010] Thus, the present invention provides the following.

[0011] One embodiment of the present invention is an intracerebral endoscopic training device comprising: [1] a cerebral model portion made of synthetic resin; and a head model portion that houses the cerebral model portion in a detachable manner, and a simulated disease area is provided inside the cerebral model portion.

[0012] Another embodiment of the present invention is the intracerebral endoscopic training device described in [1], wherein [2] the cerebral model portion includes areas corresponding to the frontal lobe, the occipital lobe, the temporal lobe and the occipital lobe, and the inside of the cerebral model portion has a space corresponding to the ventricular system.

[0013] Another embodiment of the present invention is the intracerebral endoscopy training device described in [1], wherein the cerebral model portion is horizontally divided into two equal parts, upper and lower.

[0014] In another embodiment of the present invention, [4] the cerebral model portion further comprises a groove corresponding to either or both of the lateral sulcus or the central sulcus, [2] is a brain endoscopy training device.

[0015] In another embodiment of the present invention, [5] the simulated disease area is provided by arranging a disease model in a predetermined space of the cerebral model part. [1] This is the brain endoscopy training device described in [1].

[0016] In another embodiment of the present invention, [6] the simulated disease area is a container containing a simulated normal portion and a simulated disease portion, and the shape of the container corresponds to at least a part of the missing portion of the frontal lobe, parietal lobe, temporal lobe and occipital lobe in the cerebral model portion. [2] is a brain endoscopy training device.

[0017] Another embodiment of the present invention is the intracerebral endoscopic training device described in [1], wherein the head model portion is provided with an opening for inserting an endoscope.

[0018] Another embodiment of the present invention includes the steps of: [8] collecting cerebral shape information including disease information in the cerebrum of a patient; acquiring three-dimensional image data generated from the cerebral shape information; identifying disease areas in the three-dimensional image data; A step of creating a mold of a cerebral model portion in which the identified diseased area is deleted as a missing portion; The method includes a step of placing a simulated diseased area in the missing portion of the cerebral model portion. A method for creating an intracerebral endoscopy training device. Effect of the Invention

[0019] The medical model of the present invention can specifically reproduce diseased areas of the cerebrum. This allows doctors to train in endoscopic operation using a more realistic brain model. Furthermore, this method of manufacturing the cerebrum model and the brain endoscopy training device manufactured using it will contribute to the planning of surgical strategies according to the disease of each patient and the provision of sufficient information to patients (informed consent). [Brief description of the drawings]

[0020] [Figure 1] 1 is a schematic diagram of a training device as described herein. [Diagram 2] FIG. 2 is a view of the training device in FIG. 1 as seen from the left side of the head. [Diagram 3] FIG. 2 is a perspective view of the training device of FIG. 1. [Figure 4] This is a diagram of the training device in Figure 1 with the cerebral model installed. [Diagram 5] FIG. 2 is a schematic diagram of a portion of the brain phantom described herein. [Figure 6] FIG. 2 is a schematic internal view of a portion of the brain phantom described herein. [Figure 7] FIG. 2 shows the ventricular system of the brain phantom portion described herein. [Figure 8] FIG. 2 shows a diseased area of ​​a brain model portion described in the present specification. [Figure 9] FIG. 13 shows another aspect of the diseased area of ​​the cerebral model portion described in this specification. [Figure 10] FIG. 13 shows another aspect of the diseased area of ​​the cerebral model portion described in this specification. [Figure 11] FIG. 13 shows another aspect of the diseased area of ​​the cerebral model portion described in this specification. [Figure 12] FIG. [Figure 13] 1A to 1C are diagrams showing the manufacturing process of the cerebral model part in the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] In the present disclosure, the cerebral model part is used for training in endoscopic surgery in the brain, and can reproduce a state close to an actual surgery. The synthetic resin is preferably a material that can reproduce the texture of cerebral tissue and is easy to mold. Specifically, polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyurethane (PU), silicone (Si), ethylene propylene diene monomer (EPDM), etc., or combinations of these or those with appropriate addition of processing aids, are preferred. Silicone is preferred from the viewpoint of processability and texture.

[0022] The head model in this disclosure means a model of the head that houses the cerebral model. Since intracranial endoscopic surgery is performed by penetrating the skull, a head model is necessary to simulate an actual surgery. The head model is designed to be able to house the cerebral model in a detachable manner. Materials used for the head model are preferably acrylic (polymethyl methacrylate / PMMA), polycarbonate (PC), polyacetal (POM), polyethylene terephthalate (PET), acrylonitrile butadiene styrene (ABS), or any combination thereof. These materials are hard and easy to process, so that precise shapes can be created. In this disclosure, the head model can be created using CNC processing, a 3D printer, or the like.

[0023] The intracerebral endoscopy training device of the present disclosure has a simulated diseased area inside the cerebrum model. This is done by providing a portion simulating a disease (e.g., a tumor or abnormal tissue) in a specific area of ​​the cerebrum in order to simulate an actual surgical situation. In surgical training, a doctor or trainee can use an endoscope to perform surgery on this simulated diseased area, enabling practical training.

[0024] In the present disclosure, the cerebral model includes areas corresponding to the frontal lobe, the temporal lobe, and the occipital lobe, which are major parts of the brain. These areas control important functions of the brain, and in surgical training, it is possible to train operations that take into account access to these areas.

[0025] In the present disclosure, a space corresponding to the ventricular system is provided inside the cerebral model. The ventricular system is located inside the brain, and is a space filled with cerebrospinal fluid, which is responsible for the production, circulation, and absorption of cerebrospinal fluid. The ventricular system is an important anatomical structure in endoscopic brain surgery, and is also an area that is likely to be accessed when an operator accesses an important area in the brain. By using the training device of the present invention, it is possible to train this complex structural area, which contributes to improving the safety and efficiency of surgery.

[0026] In the present disclosure, since the cerebral model is divided into two halves, top and bottom, the trainee can access the simulated diseased area to perform a surgical procedure, and then separate the cerebral model to check the internal condition. Evaluating the internal changes and effects when a procedure is performed using surgical tools is useful for improving the effectiveness and technique of surgery. In addition, this confirmation process allows the trainee to strengthen his or her own surgical technique and identify areas for improvement.

[0027] In the present disclosure, the cerebral model is divided into two halves, upper and lower, so that the simulated diseased part can be easily replaced. The simulated diseased part is a representation of a lesion or abnormality in the brain, and is an important training target part when a trainee performs surgery. By making the simulated diseased part interchangeable, training can be performed on various lesions, and a wide range of surgical scenarios can be accommodated. Furthermore, by utilizing the interchangeable simulated diseased part, training can be performed effectively and efficiently for a large number of trainees.

[0028] In the present disclosure, the simulated diseased area of ​​the intracerebral endoscopy training device is configured to place a diseased model part in a predetermined space part of a cerebral model part. This diseased model mimics an actual pathological condition in intracerebral endoscopic surgery. A trainee can perform surgery on this simulated diseased area using an endoscope, and can perform surgery training in a situation close to reality.

[0029] In the present disclosure, the simulated disease area of ​​the brain endoscope training device may be configured as a container containing both a simulated normal portion and a simulated disease portion. This container means that a portion simulating a disease and a normal portion are arranged together in a specific area in the brain. That is, in this embodiment, the simulated disease area is provided as a cartridge. This allows a trainee to perform surgery training on both the normal portion and the disease portion in the simulated disease area. In the present disclosure, the simulated disease area can be configured to correspond to at least a part of the missing portion of the area corresponding to the frontal lobe, parietal lobe, temporal lobe, and occipital lobe in the cerebral model part.

[0030] The present disclosure also provides a method for creating an intracerebral endoscopy training device. This method includes a step of first collecting cerebral shape information including disease information in the cerebrum of a patient. This step is a step of acquiring information such as the shape of the patient's brain, the location of the disease, and the enlargement and reduction of the brain. Usually, images such as MRI (magnetic resonance imaging) and CT (computed tomography) are acquired using medical imaging technology, and the shape of the brain and disease information are analyzed.

[0031] Next, a step of generating 3D image data is performed based on the collected cerebral shape information. In this step, the 3D shape of the patient's cerebral cortex and disease information are acquired as digital data. Next, a step of identifying and specifying a specific diseased area from the acquired 3D image data is performed. This step obtains data including the location and extent of the disease in the patient's brain. Furthermore, a step of creating a mold of the cerebral model in which the identified diseased area is deleted as a missing part is performed. This makes it possible to manufacture a mold of the cerebral model that does not include the diseased area in the brain as a missing part.

[0032] Next, a process is performed in which a simulated diseased area that mimics a pathological condition similar to the identified diseased area is placed in the missing part of the manufactured cerebral model. This completes a cerebral model that is close to a real diseased state and can be used for surgical training. The above process makes it possible to provide an intracerebral endoscopic training device in which a simulated diseased area is placed based on the patient's cerebral shape information. Trainees can use this device to perform surgical training, improving their intracerebral endoscopic surgery skills and providing safer treatment to patients.

[0033] Hereinafter, an embodiment of an intracerebral endoscopy training device configured according to the present invention will be described with reference to the drawings.

[0034] Referring to FIG. 1, an embodiment of the brain endoscope training device according to the present invention is shown. FIG. 1 is a schematic diagram of the brain endoscope training device 1. This device is composed of two main parts, a hard head model part 3 and an inner cerebral model part 2. The head model part 3 is preferably made of a material that is durable and suitable for maintaining its shape. In this embodiment, it is preferable to use a resin that can be manufactured by a 3D printer. Specifically, plastics such as acrylonitrile butadiene styrene (ABS) and polycarbonate are often used. These materials have high strength and impact resistance, and can be precisely shaped. In this embodiment, the head model part 3 is created using polyamide resin by powder sintering layered manufacturing based on three-dimensional image data of a human head. In this embodiment, it is preferable that the head model part 3 has a hole near the top of the head. The trainee inserts a surgical tool into this hole to perform endoscopic training. In the present disclosure, such an opening in the head model part is not necessarily required. If there is no opening, it is desirable to provide an area where a hole can be made. When such an opening is provided, a material that is particularly easy to process among plastics, such as polyethylene or polypropylene, is suitable. These materials are easily molded and processed by heat, allowing their flexibility and shape to resemble a real head, and users can even drill holes in them as needed for actual training.

[0035] Next, the external appearance of the intracerebral endoscope training device of the present invention will be described with reference to Fig. 2. The head model part 3 in the intracerebral endoscope training device 1 of the present invention has a shape in which the skull part is cut in the axial transverse plane, and can be used by fixing the front surface 31 and the rear surface 32 with fasteners 5. By configuring it in this way, it becomes possible to insert and remove the cerebrum model part 2 into and from the head model part 3. In this embodiment, a base 4 is provided on the rear surface 32 side. The installation location of this base 4 is one example, and the base 4 can be changed as appropriate depending on the purpose of the surgery.

[0036] Next, an outline of the intracerebral endoscope training device of the present invention will be described with reference to Figs. 3 and 4. The head model part 3 of the present invention is provided with a hole 6 for surgical training in advance. The position and size of the hole 6 in Fig. 4 are illustrative in this embodiment and can be changed as appropriate for the purpose of surgery for each individual patient. According to the manufacturing method of the intracerebral endoscope training device of the present invention, it is also possible to provide an intracerebral endoscope training device customized based on information about the inside of the brain of each individual patient. In this embodiment, the head model part 3 is divided into a front part and a rear part, and by separating these parts, the cerebrum model part 2 can be inserted and removed.

[0037] Next, referring to FIG. 5, an outline of the cerebral model 2 of the brain endoscope training device of the present invention will be described. Although not shown individually, the cerebral model includes areas corresponding to the frontal lobe, occipital lobe, temporal lobe, and occipital lobe. These areas may be color-coded according to the purpose. The inside of the cerebral model 2 has a space corresponding to the ventricular system. Furthermore, preferably, the cerebral model may be horizontally divided into upper and lower halves (21 and 22). The position of the bisection can be arbitrarily determined depending on the target disease that is the training purpose or the state of the brain of the patient who is the surgical target. In this embodiment, the cerebral model is horizontally divided into upper and lower halves at the position of the posterior horn of the lateral ventricle of the ventricular system. Optionally, a structure such as the pituitary stalk 23 may be added.

[0038] Such a cerebrum model portion 2 can be manufactured, for example, by the following method. First, the human head is photographed by MRI, CT, or the like, and then a mold for the cerebrum model portion 2 is manufactured by powder sintering layered manufacturing based on three-dimensional image data generated from tomographic information of the human head. Then, a suitable elastomer material is poured into the mold for the manufactured cerebrum model portion 2, thereby manufacturing the cerebrum model portion 2. As a material for manufacturing the cerebrum model portion 2, an elastomer material is preferable, and examples of the material include thermoplastic elastomers such as ester-based, styrene-based, olefin-based, vinyl chloride-based, urethane-based, polyamide-based, fluororesin-based, and conjugated diene-based elastomers, and further rubber-like elastic bodies such as silicone rubber.

[0039] Next, the inside of the cerebral model part 2 will be described with reference to FIG. 6. In the present disclosure, the cerebral model divided in two in this way is referred to as the upper hemisphere 21 and the lower hemisphere 22. In the embodiment of the present disclosure, the cerebral model 2 is divided horizontally into upper and lower halves at the position of the posterior horn of the ventricle in the human ventricular system. In FIG. 6, the upper hemisphere 21 is composed of upper parts 25 and 24 of the right ventricle and upper parts 27 and 26 of the left ventricle. By configuring in this way, it is possible to easily replace the model of the diseased area as described later while confirming the area to be operated on in three dimensions.

[0040] In Fig. 6, a cerebral model can be created by the method of the present invention so as to mimic the inside of the ventricle of an actual patient. Specifically, the choroid plexus 28, the third ventricle facing the back of the choroid plexus, and a tumor location 29 as a simulated diseased area can be provided in a realistic form.

[0041] Next, the simulated disease area in the cerebral model section 22 will be described with reference to FIG. 7. As described above, the cerebral model section in the present invention can be manufactured by creating a mold in which a diseased part is provided as a simulated diseased area at a desired position using a 3D printer based on image data from the patient's brain, and pouring molten resin into this mold. In FIG. 7, 29a and 29b are examples of the simulated diseased area in the present invention. A model having physical characteristics of the diseased part is incorporated into such a part, combined as shown in FIG. 5, incorporated into the skull model as shown in FIG. 4, the fixing tool is locked as shown in FIG. 3 or FIG. 2, and a surgical tool is inserted as shown in FIG. 12, so that surgical training can be performed.

[0042] Next, referring to FIG. 8, a model used for the diseased part of the cerebral model in the present invention will be described. In the embodiment in FIG. 8, a cherry tomato is incorporated as the simulated diseased part 29c. Cherry tomatoes are suitable as a model for brain tumors because of their ease of availability and resistance and hardness to surgical tools. In addition, their internal structure is similar to that of necrotic tissue, making them suitable as a model for brain tumor removal surgery training. In the present invention, a model corresponding to the diseased area can be appropriately selected in addition to the above. For example, in the case of tumor-related diseases, roughly spherical fruits (grapes, cherries, strawberries, blueberries, and other berries, etc.) may be used depending on the size of the tumor. Silicone, elastomer, cellulose, clay, and any food may be mixed, and a focus may be placed on a tare made of a thin resin film. Furthermore, it may be artificially created using synthetic resin.

[0043] Next, referring to FIG. 9 and FIG. 10, another embodiment of the diseased area of ​​the cerebral model part in the present invention will be described. In this embodiment, the cerebral model of the present invention is created by deleting the peripheral part of the diseased area. FIG. 9 shows an embodiment configured to replace a certain section of the periphery of the actual diseased area. Specifically, a base material simulating normal brain tissue and a diseased part simulating the tissue of the diseased part are filled in a roughly rectangular container made of plastic or the like, and the container is configured to be fitted into a part of the cerebral model of the present invention. By configuring in this way, multiple trainees can train the same diseased area by replacing the cartridge 29d. In addition, by changing the pattern of the diseased model in the cartridge 29d, it is possible to perform surgical training of different disease patterns using the same cerebral model. In FIG. 10, a diseased part simulating the tissue of the diseased part is formed at the bottom of the cartridge 29d, and a base material simulating normal brain tissue is layered on top of it. In FIG. 10, the cartridge of the diseased area in the cerebral model of the present invention is inserted from above the ear of the right head. The size of the cartridge 29d and the insertion site of the cerebral model can be changed as appropriate.

[0044] Next, referring to FIG. 11, a cartridge simulating a diseased area used in the cerebral model of the present invention will be described in detail. The cartridge described in FIG. 11 is a roughly rectangular parallelepiped with a hollow interior formed in a shape corresponding to the missing part. The material of such a cartridge is not particularly important, but it is preferable to form it from a transparent resin or the like, since the diseased area and normal brain tissue are placed inside the cartridge as a base material. The size can be manufactured according to the area and size of the target disease to be trained, but it is preferable to secure a sufficient space for inserting the endoscope and sheath and for the trainee to operate the endoscope to treat the diseased area such as a tumor.

[0045] The cerebral substrate filled in the cartridge is preferably a material having a color and flexibility similar to that of cerebral tissue. Specifically, a substrate having a color and hardness similar to that of cerebral tissue can be prepared by appropriately mixing clay, tofu, jelly, agar, dietary fiber, cellulose, starch, etc. It is also possible to prepare a brain substrate by blending any thickener or pigment with a synthetic resin such as silicone. In one embodiment of the present invention, a paste obtained by mixing and kneading about 5 g of cornstarch per 100 g of heated potato paste can be used. In the present invention, the hardness and viscoelasticity of the brain substrate are not particularly important, and it is sufficient that the substrate can easily pass surgical instruments such as a sheath and does not dissolve in water. In another embodiment of the present invention, a blood vessel model may be appropriately placed in the cerebral tissue substrate or cartridge.

[0046] Furthermore, in the cartridge, there are a cerebral tissue portion which is a simulated normal portion and a simulated disease portion to be treated using an endoscopic surgical tool. In the case of a brain tumor, as described above, such a simulated disease portion can be arranged so that a cherry tomato is embedded in potato paste. In the present invention, a model corresponding to a diseased area can be appropriately selected other than the above. For example, in the case of a brain tumor, a roughly spherical fruit (grape, cherry, strawberry, blueberry, other berries, etc.) can be used depending on the size of the tumor. Silicone, elastomer, cellulose, clay, or any food can be mixed, and a weight tare made of a thin resin film can be used. Furthermore, it can be artificially created using a synthetic resin.

[0047] Next, a usage mode of the present invention will be described with reference to Fig. 12. A sheath, which serves as a guide for inserting an endoscope, is inserted through a hole in the skull model shown in Fig. 12, and after the sheath reaches the diseased area, the endoscope is inserted into the tubular shape of the sheath. In addition, when a surgical tool is to be actually operable, a cord-shaped counter electrode may be embedded in the cerebral model to allow the use of, for example, an electric scalpel in a simulated manner.

[0048] In endoscopic brain surgery (e.g., brain tumor resection), the sheath serves to create a path for specific surgical instruments to enter the brain. Usually, surgeons use imaging techniques such as MRI or CT scans to plan the surgery and identify the location and size of the area to be operated on. Through navigation, they insert a sheath into the brain, then introduce surgical instruments such as endoscopes and catheters into the brain to create a path to treat the diseased area.

[0049] Sheaths used in brain surgery come in different shapes and sizes depending on the application. They generally have a long, tubular structure, are elongated and may have a tapered tip, and are designed to access tight spaces in the brain. Some sheaths are smooth on the inside to allow certain surgical instruments to pass through easily. Some sheaths are flexible and designed to pass through tortuous pathways in the brain. By using the cartridge of the present invention, the suitability of surgical instruments can be confirmed in advance in three dimensions.

[0050] Next, referring to FIG. 13, an embodiment of the creation of an intracerebral endoscope training device according to the present invention will be described. The intracerebral endoscope training device according to the present invention can be used not only as a general-purpose medical model, but also as a simulation or training device before surgery for patients who actually need surgery. Specifically, before a patient's surgery, information in the brain is collected using image processing technology to create a surgery plan. Representative means for checking tumors, bleeding, vascular disorders, etc. in the brain include MRI (magnetic resonance imaging) and CT (computed tomography), but the present invention is not intended to be limited to information obtained from these. In the present invention, three-dimensional data of the cerebrum is created using information collected for such purposes. These image data are preferably two-dimensional tomographic images of a specific part of the patient's body.

[0051] Next, the collected images are pre-processed, such as removing noise, enhancing contrast, and scaling the images. Then, the diseased area or the area containing the diseased area is separated and extracted. 3D volume data is generated from the cross-sections of each separated image. In general, the images are aligned in one direction, and a 3D model is created using the spatial relationship between each adjacent 2D image. This process often uses 3D drawing software. The created 3D model is mesh-optimized to make the model smooth and holes are corrected as necessary. Then, such data is converted into CAD data in a common CAD format (e.g., STEP, IGES, STL, etc.). This data can later be opened in CAD software, and used to create a mold of the cerebral model by 3D printing. In the mold of the cerebral model, since the diseased area is identified as described above, the mold of the cerebral model is created so that a part of the cerebrum is missing. In another embodiment of the present invention, the diseased area may be configured to be deleted separately after the cerebral model is created.

[0052] Specifically, a cerebral model with a hollow ventricular system may be created from image data of a patient, and then divided into equal parts at predetermined locations, and the tumor site may be hollowed out inside. Alternatively, the cartridge may be created by excising a peripheral area of ​​the disease from the cerebral model, which corresponds to the cartridge.

[0053] Next, synthetic resin is poured into the mold of the cerebral model created by a 3D printer, and the cerebral model is produced until it is ready for manufacturing.

[0054] With this configuration, it is possible to create an endoscopic training device for individual patients using the method of the present invention. Furthermore, by providing such a training device that mimics the disease area of ​​an individual patient, it becomes easier to practice surgical strategies and procedures, which contributes to improving doctors' medical skills and reducing surgical risks. [Explanation of symbols]

[0055] 1: Brain endoscopy training device 2: Brain model section 3: Head model part 31: The entire surface of the brain model 32: Rear of the model 4: Base 5: Fastener 6: Head model opening 21: Upper hemisphere of the cerebral model 22: Lower hemisphere of the cerebral model 23: Pituitary gland hei 24: Lower right ventricle 25: Upper right ventricle 26:Lower left ventricle 27: Upper left ventricle 28: Choroid plexus 29 (29a and 29b): Simulated disease areas 29c: Simulated disease site 29d:Disease Area Cartridge 291: Simulated normal tissue part 292: Simulated disease part

Claims

1. A synthetic resin brain model, a head model part that detachably houses the cerebral model part, A simulated disease area is provided inside the cerebral model part. Brain endoscopy training device.

2. the cerebral model portion includes areas corresponding to the frontal lobe, the occipital lobe, the temporal lobe, and the occipital lobe; The inside of the cerebral model part has a space corresponding to the ventricular system. The brain endoscopy training device according to claim 1.

3. 2. The brain endoscopy training device according to claim 1, wherein the cerebral model portion is divided into upper and lower halves in the horizontal direction.

4. The cerebral model portion further includes a groove corresponding to either or both of the lateral sulcus and the central sulcus. The brain endoscopy training device according to claim 2.

5. The simulated disease area is formed by placing a disease model in a predetermined space of the cerebral model part. The brain endoscopy training device according to claim 1.

6. The simulated disease area is a container including a simulated normal portion and a simulated disease portion, and the shape of the container corresponds to at least a part of a missing portion of a region corresponding to a frontal lobe, a parietal lobe, a temporal lobe, and an occipital lobe in the cerebral model portion. The brain endoscopy training device according to claim 2.

7. The brain endoscopy training device according to claim 1 , wherein the head model portion is provided with an opening for inserting an endoscope.

8. Collecting cerebral shape information including disease information of the patient's cerebrum; acquiring three-dimensional image data generated from the cerebral shape information; identifying a diseased area in the three-dimensional image data; A step of creating a mold of a cerebral model portion in which the identified diseased area is deleted as a missing portion; The method includes a step of placing a simulated diseased area in the missing portion of the cerebral model portion. How to create a brain endoscopy training device.

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