Method for making polyp replacement block and training model for endobronchial treatment surgery

Abstract

The present application relates to the field of medical equipment technology, and specifically to a method for making a polyp replacement block and an intrabronchial treatment surgery training model, the training model comprising a model bracket, a bracket cover plate detachably connected to the model bracket, a bronchial model cooperatedly installed between the bracket cover plate and the model bracket, a plurality of through holes are provided on the side wall of the bronchial model close to the bracket cover plate, a mounting seat is fixedly connected to the bracket cover plate, a mounting hole connected to the through hole is provided on the mounting seat, a polyp replacement block is installed inside the mounting hole, the polyp replacement block is passed through the through hole, and the inner end of the polyp replacement block is located inside the bronchial model. The polyp replacement block made using the method for making the training model of the present application has a conductivity and hardness close to that of human tissue, and is installed inside the bronchial model in a replaceable manner, which can realize repeated and multiple uses of the intrabronchial treatment surgery training model, and is conducive to ensuring the hygiene and safety of the training environment.

Description

Technical Field

[0001] The present application relates to the field of medical equipment technology, and in particular to a method for manufacturing a polyp replacement block and an intrabronchial treatment surgery training model. Background Art

[0002] Endobronchial surgery is a surgical technique widely used in the field of medical treatment. It is mainly used to treat diseases such as polyps, foreign body obstruction, and suffocation in the bronchial cavity. It can relieve tracheal obstruction in a short time and buy time for patients to recover and save their lives. In order to enable medical personnel to have proficient surgical skills in endobronchial treatment during medical treatment, training and practice are required through the endobronchial treatment surgery training model.

[0003] At present, the skill training of similar instruments is usually carried out by using pig lungs or plastic models with pork strips inside. The pork strips are used to simulate polyps or foreign bodies inside the bronchial cavity. The pig lungs are isolated pig lungs, which are placed in a special plastic box after cleaning. A notch is set at the bronchial branch for placing the pork strips, and then the pork strips are placed inside the notch for training and practice. The plastic model is combined with pork strips by using the plastic model as the basic base and simulating the shape of the human bronchial tree. At the same time, a notch is set at the bronchial branch for placing the pork strips, and then the pork strips are placed inside the notch for training and practice.

[0004] In the related art, animal lungs and meat strips are used as training models. However, since animal lungs and meat strips are easy to deteriorate and rot or breed bacteria, it is not conducive to the repeatability of training and practice, nor is it conducive to the sanitation and safety of the training environment.

[0005] Therefore, how to achieve repeated use of the endobronchial treatment surgery training model and ensure the hygiene and safety of the training environment are issues that technical personnel in this field urgently need to solve. Summary of the invention

[0006] In order to enable the endobronchial treatment surgery training model to be used repeatedly and to ensure the hygiene and safety of the training environment, the present application provides a method for making a polyp replacement block and an endobronchial treatment surgery training model.

[0007] The present application provides a method for making a polyp replacement block and an intrabronchial treatment surgery training model using the following technical solutions:

[0008] In a first aspect, a method for making a polyp replacement block comprises the following steps:

[0009] S1. Pour konjac flour and gelatin sponge into deionized water and heat to boiling;

[0010] S2, add sodium bicarbonate and stir until completely dissolved;

[0011] S3, add gelatin sponge again and continue stirring until completely dissolved;

[0012] S4. Use a vacuum pump to evacuate the air and take it out after the foam is completely eliminated;

[0013] S5. Add isopropyl acrylamide and acrylamide in sequence and stir until completely dissolved;

[0014] S6. Add a reaction accelerator and stir until completely dissolved;

[0015] S7, pouring into a mold, cooling and forming, and making a polyp replacement block.

[0016] By adopting the above technical scheme, a colloid with conductive properties can be formed using konjac flour, gelatin sponge and deionized water, wherein the konjac flour plays a role of gelling, and the gelatin sponge is a hydrophilic colloid mainly including gelatin protein and sponge skeleton protein. Gelatin protein has good biocompatibility and biodegradability, so the gelatin sponge can be used as a stabilizer, and the sponge skeleton protein has a certain deformation ability and conductivity, so the gelatin sponge can also ensure the overall conductivity of the polyp replacement block.

[0017] Optionally, the amounts of konjac flour, gelatin sponge and deionized water in S1 are: 10 g konjac flour, 2 g gelatin sponge and 100 g deionized water; the amount of sodium bicarbonate in S2 is 0.5 g; the amount of gelatin sponge in S3 is 0.5 g; the amount of isopropyl acrylamide in S5 is 6 g, and the amount of acrylamide is 5 g.

[0018] By adopting the above technical solution and preparing it according to the above proportion, the polyp replacement block can have a physical texture and conductivity close to that of human tissue after being formed.

[0019] Optionally, the reaction accelerator is N,N,N',N'-tetramethylethylenediamine, and the amount of the N,N,N',N'-tetramethylethylenediamine is 0.2 g.

[0020] By adopting the above technical solution and using N,N,N',N'-tetramethylethylenediamine as a reaction accelerator, the reaction and molding of the gel can be accelerated, thereby achieving the purpose of improving the efficiency of making polyp replacement blocks.

[0021] Second,

[0022] A training model for endobronchial treatment surgery, comprising a model bracket, to which a bracket cover is detachably connected, a bronchial model being cooperatively installed between the bracket cover and the model bracket, a plurality of through holes being provided on the side wall of the bronchial model close to the bracket cover, a mounting seat being fixedly connected to the bracket cover, a mounting hole communicating with the through hole being provided on the mounting seat, and also comprising the polyp replacement block described in the first aspect, the polyp replacement block being installed inside the mounting hole, the polyp replacement block being passed through the through hole, the inner end portion of the polyp replacement block being located inside the bronchial model, a fixing component being provided on the mounting seat, and the fixing component being used to detachably install the polyp replacement block inside the mounting hole.

[0023] By adopting the above technical scheme, the polyp replacement block can be detachably installed inside the installation hole. The polyp replacement block can be used to simulate polyps and derivatives in the human bronchial cavity. Then, energy instruments such as electric knife and electrocoagulation used under respiratory bronchoscope can be used to enter the bronchial model to simulate endobronchial treatment surgery. The endobronchial treatment surgery training model can be used repeatedly by replacing the polyp replacement block. The use of the polyp replacement block can avoid the problem of animal lungs and meat strips being easily spoiled and rotten or breeding bacteria, which is conducive to ensuring the hygiene and safety of the training environment.

[0024] Optionally, the polyp replacement block includes a polyp head, a connecting rod, and a limiting boss which are connected in sequence, and the polyp head, the connecting rod, and the limiting boss are made of conductive material as one piece, the polyp head is located inside the bronchial model, the connecting rod is passed through the through hole and the mounting hole, a step hole is provided at the outer end of the mounting hole, the end face of the limiting boss close to the connecting rod abuts against the step surface of the step hole, and an electrode sheet is provided between the limiting boss and the fixing component.

[0025] By adopting the above technical solution, the mutual abutment and cooperation between the step hole and the limiting boss can ensure the stability of the polyp replacement block installed inside the installation hole, which is conducive to ensuring that the position of the polyp head inside the bronchial model is reliable, thereby ensuring the effect of surgical training. At the same time, the use of electrode sheets can more stably and reliably energize the polyp replacement block, so that energy devices such as electric knives and electrocoagulation used under respiratory bronchoscopes can form a stable and reliable electrical connection with the polyp replacement block, ensuring that energy devices such as electric knives and electrocoagulation can be powered on normally.

[0026] Optionally, the fixing assembly includes a fixing plate, the inner side wall of the mounting hole is symmetrically provided with a slot extending along the circumferential direction of the mounting seat, the end of the slot is provided with a slot entrance penetrating to the outer end of the mounting seat, and the fixing plate is provided with symmetrically arranged ear plates, the ear plates correspond to the slots, the ear plates are cooperatively installed inside the slots, and the inner end surface of the fixing plate abuts against the outer end surface of the electrode sheet.

[0027] By adopting the above technical solution, the fixing plate is placed inside the mounting hole and the ear plate is located correspondingly inside the slot. After the fixing plate is moved axially along the mounting seat to the end of the slot, the fixing plate is rotated circumferentially along the slot to press the electrode sheet against the limiting boss, thereby ensuring the stability of the installation of the polyp replacement block and the reliability of the electrical conduction between the polyp replacement block and the electrode sheet.

[0028] Optionally, a wire is fixedly connected to the outer side of the electrode sheet, one end of the wire is electrically connected to the electrode sheet, a side wall of the mounting seat is provided with an avoidance groove, the other end of the wire is passed through the avoidance groove and is electrically connected to an electrode plug.

[0029] By adopting the above technical solution, the electrode plug can be used to conveniently form a stable and reliable electrical connection between the energy devices such as the electrosurgical unit and electrocoagulation used under the respiratory medicine bronchoscope and the polyp replacement block, and the avoidance groove can prevent the side wall of the mounting seat from interfering with the wire when installing the fixing plate, thereby causing the wire to detach from the electrode sheet. Therefore, this design further ensures the stable and reliable electrical connection between the energy devices such as the electrosurgical unit and electrocoagulation and the polyp replacement block.

[0030] Optionally, a rotating portion is provided on the outer end surface of the fixing plate.

[0031] By adopting the above technical solution and arranging a rotating part on the outer end surface of the fixing plate, the fixing plate can be driven to move and rotate more conveniently, which is beneficial to improving the working efficiency of replacing the polyp replacement block.

[0032] Optionally, the number of the through holes is set to three, and the three through holes are respectively opened in the middle sections of the main bronchus, the left main bronchus, and the right main bronchus of the bronchial model.

[0033] By adopting the above-mentioned technical solution, opening the through holes and installing the polyp replacement blocks at the positions corresponding to the main trachea, left main bronchus and right main bronchus on the bronchial model is conducive to more realistic simulation of endobronchial treatment surgery, thereby improving the effect of endobronchial treatment surgery training.

[0034] Optionally, the shape of the polyp head is divided into multi-bud branch shape, mushroom-shaped protrusion shape, and cauliflower-shaped protrusion shape.

[0035] By adopting the above technical solution, the shape of the polyp head is set to the multi-bud branching, mushroom-shaped protrusion, and cauliflower-shaped lump shape commonly seen in clinical cases, which is conducive to medical personnel to be closer to the experience of clinical cases during the training of endobronchial treatment surgery, and further improves the authenticity of the simulated endobronchial treatment surgery.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. The polyp replacement block of the present application can be used to simulate polyps and derivatives in the bronchial cavity of the human body, and then the energy instruments such as the electric knife and electrocoagulation used under the respiratory bronchoscope can be inserted into the bronchial model to simulate the intrabronchial treatment surgery. By replacing the polyp replacement block, the intrabronchial treatment surgery training model can be used repeatedly;

[0038] 2. The present application sets the shape of the polyp head to be a multi-bud branch shape, a mushroom-shaped protrusion shape, or a cauliflower-shaped protrusion shape commonly seen in clinical cases, which is conducive to medical personnel getting closer to the experience of clinical cases during the training of endobronchial treatment surgery, and further improves the authenticity of the simulated endobronchial treatment surgery;

[0039] 3. The method for making a polyp replacement block provided in the present application utilizes konjac flour and gelatin sponge in combination with isopropyl acrylamide, acrylamide and other raw materials to make the polyp replacement block have a physical texture close to that of human tissue and conductivity. The use of the polyp replacement block can also avoid the problem of decay or bacterial growth, which is conducive to ensuring the hygiene and safety of the training environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the assembly state structure of the endobronchial treatment surgery training model of Example 2 of the present application.

[0041] Figure 2 It is a schematic diagram of the exploded structure of the intrabronchial treatment surgery training model of Example 2 of the present application.

[0042] Figure 3 This is a schematic diagram of the internal structure installation of the endobronchial treatment surgery training model of Example 2 of the present application.

[0043] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure of the first part.

[0044] Figure 5 It is a schematic diagram of the structure of the fixing component in Example 2 of the present application.

[0045] Explanation of the reference numerals: 100, model bracket; 101, bracket cover; 102, mounting seat; 103, mounting hole; 105, step hole; 106, avoidance groove; 200, bronchial model; 201, through hole; 300, polyp replacement block; 301, polyp head; 302, connecting rod; 303, limiting boss; 304, electrode sheet; 305, wire; 306, electrode plug; 400, fixing assembly; 401, fixing plate; 402, slot; 403, ear plate; 404, rotating part; 500, box body; 501, box cover; 502, operating hole; 503, buckle hand part. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-5 This application is described in further detail.

[0047] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] The embodiments of the present application disclose a method for making a polyp replacement block and an intrabronchial treatment surgery training model.

[0050] Example 1

[0051] In one embodiment of the present application, a method for making a polyp replacement block comprises the following steps:

[0052] S1. Make molds. Use nylon powder to make different types of molds through 3D printing equipment. The shapes of the molds have common shapes in clinical cases, such as multi-bud branches, mushroom-shaped protrusions, and cauliflower-shaped lumps.

[0053] S2. Pour 10g of konjac flour and 2g of gelatin sponge into 100g of deionized water and heat to boiling. Konjac flour, gelatin sponge and deionized water can form a colloid with conductive properties, wherein the konjac flour plays a role of gelling, and the gelatin sponge is a hydrophilic colloid mainly including gelatin protein and sponge skeleton protein. Gelatin protein has good biocompatibility and biodegradability, so the gelatin sponge can be used as a stabilizer, and the sponge skeleton protein has a certain deformation ability and conductivity, so the gelatin sponge can also ensure the overall conductivity of the polyp replacement block 300.

[0054] S3. Immediately after boiling, add 0.5 g of sodium bicarbonate and stir quickly until completely dissolved; sodium bicarbonate acts as a leavening agent, making the gel soft and fluffy, so that the polyp replacement block 300 can have a hardness closer to that of human tissue, which is beneficial to improving the authenticity of the model during use.

[0055] S4. Add 0.5 g of gelatin sponge again and continue stirring until it is completely dissolved; adding a small amount of gelatin sponge here is to utilize the thickening effect of gelatin to increase the viscosity of the solution, which is beneficial to ensure the molding effect of the polyp replacement block 300.

[0056] S5. Use a vacuum pump to draw a vacuum while hot. The bubbles generated during the stirring process can be eliminated by vacuum extraction, and the block can be taken out after the bubbles are completely eliminated. This can ensure the stability and product quality of the polyp replacement block 300 after molding.

[0057] S6, add 6g of isopropyl acrylamide and 5g of acrylamide in sequence, and stir until completely dissolved. Since the isopropyl acrylamide molecule contains hydrophilic amide groups and hydrophobic isopropyl groups, its homopolymer has good properties such as a low critical solution temperature, which allows the material to be fully dissolved. Acrylamide is mainly used to make water-soluble polymers, and it plays the role of a binder here.

[0058] S7. Add 0.2 g of N,N,N',N'-tetramethylethylenediamine as a reaction accelerator and stir until completely dissolved; using N,N,N',N'-tetramethylethylenediamine as a reaction accelerator can accelerate the reaction and molding of the gel, thereby achieving the purpose of improving the efficiency of making polyp replacement blocks.

[0059] S8, pouring into a mold to cool and shape, and taking out after shaping, thus completing the production of the polyp replacement block 300.

[0060] Example 2

[0061] Please refer to Figure 1 and Figure 2In one embodiment of the present application, a training model for endobronchial treatment surgery includes a box body 500, a detachable box cover 501 is provided on the box body 500, a model bracket 100 is fixedly connected inside the box body 500, a bracket cover 101 is detachably connected to the model bracket 100, a bronchial model 200 is installed between the bracket cover 101 and the model bracket 100, an operation hole 502 is provided on the side wall of the box body 500, the bracket cover 101, the model bracket 100 and the bronchial model 200 all pass through the side wall of the box body 500 through the operation hole 502, and the side wall of the box body 500 is symmetrically provided with buckles 503, so that the setting of the box body 500 is convenient for fixing and storing the model during use, and is also convenient for transportation and carrying.

[0062] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, three through holes 201 are provided on the side wall of the bronchial model 200 near the support cover 101, and the three through holes 201 are respectively provided at the middle sections of the main trachea, the left main bronchus, and the right main bronchus of the bronchial model 200. A mounting seat 102 is fixedly connected to the support cover 101, and a mounting hole 103 communicating with the through hole 201 is provided on the mounting seat 102, and the polyp replacement block 300 described in Example 1 is installed inside the mounting hole 103. Providing through holes 201 and installing polyp replacement blocks 300 at positions corresponding to the main trachea, the left main bronchus, and the right main bronchus on the bronchial model 200 is conducive to more realistic simulation of endobronchial treatment surgery, thereby improving the effect of endobronchial treatment surgery training.

[0063] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, the polyp replacement block 300 is passed through the through hole 201, and the inner end of the polyp replacement block 300 is located inside the bronchial model 200. The polyp replacement block 300 can be used to simulate polyps and derivatives in the human bronchial cavity, and then energy devices such as electric knife and electrocoagulation used under respiratory bronchoscope enter the bronchial model 200 to simulate intrabronchial treatment surgery.

[0064] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, a fixing assembly 400 is provided on the mounting seat 102 for detachably mounting the polyp replacement block 300 inside the mounting hole 103. By detachably mounting the polyp replacement block 300 inside the mounting hole 103, the intrabronchial treatment surgery training model can be repeatedly used by replacing the polyp replacement block 300. In addition, the use of the polyp replacement block 300 can avoid the problem of animal lungs and meat strips being easily spoiled and rotten or breeding bacteria, which is conducive to ensuring the hygiene and safety of the training environment.

[0065] Please refer to Figure 3 and Figure 4 In one embodiment of the present application, the polyp replacement block 300 includes a polyp head 301, a connecting rod 302, and a limiting boss 303. The polyp head 301 is arranged at the inner end of the polyp replacement block 300 and is located inside the bronchial model 200. The connecting rod 302 is penetrated through the through hole 201 and the mounting hole 103. The outer end of the mounting hole 103 is provided with a step hole 105. The end face of the limiting boss 303 close to the connecting rod 302 abuts against the step surface of the step hole 105. The mutual abutment between the step hole 105 and the limiting boss 303 can ensure the stability of the polyp replacement block 300 installed inside the mounting hole 103, which is conducive to ensuring that the position of the polyp head 301 placed inside the bronchial model 200 is reliable, thereby ensuring the effect of surgical training.

[0066] Please refer to Figure 3 and Figure 4 In one embodiment of the present application, the end face of the limiting boss 303 away from the connecting rod 302 is electrically connected to an electrode sheet 304. The electrode sheet 304 can be used to more stably and reliably energize the polyp replacement block 300, so that energy devices such as the electric knife and electrocoagulation used under the respiratory bronchoscope can form a stable and reliable electrical connection with the polyp replacement block 300, ensuring that the electric knife, electrocoagulation and other energy devices can be powered on and used normally.

[0067] Please refer to Figure 3 In one embodiment of the present application, the shape of the polyp head 301 is set to a shape commonly seen in clinical cases, such as a multi-bud branch shape, a mushroom-shaped protrusion shape, a cauliflower-shaped protrusion shape, etc. Setting the shape of the polyp head 301 to a shape commonly seen in clinical cases helps medical personnel to get closer to the experience of clinical cases during the training of endobronchial treatment surgery, and further improves the authenticity and training effect of the simulated endobronchial treatment surgery.

[0068] Please refer to Figure 4 In a specific embodiment of the present application, the polyp head 301, the connecting rod 302, and the limiting boss 303 are made of conductive material in one piece, which is conducive to ensuring that the materials of the polyp head 301, the connecting rod 302, and the limiting boss 303 have consistent conductivity.

[0069] It is understandable that in other embodiments of the present application, the polyp head 301, the connecting rod 302, and the limiting boss 303 can also be separately molded and manufactured using conductive materials, and fixedly connected together by conductive connection. This can reduce the manufacturing cost of the polyp replacement block 300, because the separate manufacturing method only requires replacing the polyp head 301 for reuse, thereby reducing the raw materials required for manufacturing the connecting rod 302 and the limiting boss 303.

[0070] Please refer to Figure 3 and Figure 5 In one embodiment of the present application, the fixing assembly 400 includes a fixing plate 401, the inner side wall of the mounting hole 103 is symmetrically provided with a slot 402 extending along the circumferential direction of the mounting seat 102, the end of the slot 402 is provided with a slot entrance penetrating to the outer end of the mounting seat 102, and the fixing plate 401 is provided with a symmetrically arranged ear plate 403, the fixing plate 401 is mounted inside the slot 402 through the ear plate 403, and the inner end surface of the fixing plate 401 abuts against the outer end of the electrode sheet 304 After that, the fixing plate 401 is axially moved along the entrance of the card slot on the mounting seat 102 to the end of the card slot 402, and then the fixing plate 401 is circumferentially rotated along the card slot 402 to press the electrode sheet 304 against the limiting boss 303, thereby ensuring the stability of the installation of the polyp replacement block 300 and the reliability of the electrical conduction between the polyp replacement block 300 and the electrode sheet 304.

[0071] Please refer to Figure 2 and Figure 5 In one embodiment of the present application, the outer side of the electrode sheet 304 is fixedly connected with a wire 305, one end of the wire 305 is electrically connected to the electrode sheet 304, and the side wall of the mounting seat 102 is provided with an avoidance groove 106. The avoidance groove 106 can prevent the side wall of the mounting seat 102 from interfering with the wire 305 when the fixing plate 401 is installed, thereby causing the wire 305 to detach from the electrode sheet 304. Therefore, this design further ensures the stability and reliability of the electrical connection between energy devices such as electric knife and electric coagulation and the polyp replacement block 300. The other end of the wire 305 is passed through the avoidance groove 106 and is electrically connected to the electrode plug 306, which is fixedly installed on the side wall of the box 500. The electrode plug 306 can be used to conveniently form a stable and reliable electrical connection between energy devices such as electric knife and electric coagulation used under the respiratory internal medicine bronchoscope and the polyp replacement block 300.

[0072] Please refer to Figure 4 and Figure 5In one embodiment of the present application, a rotating portion 404 is provided on the outer end surface of the fixing plate 401, and the rotating portion 404 is configured as a plate-like protrusion fixedly connected to the outer end surface of the fixing plate 401, and the end of the plate-like protrusion is configured as an arc, so that the operator can directly contact the rotating portion 404 more comfortably during the operation. By holding the rotating portion 404, the fixing plate 401 can be driven to move and rotate more conveniently, which is beneficial to improving the work efficiency of replacing the polyp replacement block 300.

[0073] It is understandable that in other embodiments of the present application, the rotating portion 404 may also be configured as a linear groove or a cross-shaped groove that can cooperate with a standard screwdriver to facilitate operation by the user using a screwdriver.

[0074] The implementation principle of the endobronchial treatment surgery training model in the embodiment of the present application is:

[0075] First, the box 500 is fixedly placed on the operating table, and then the energy device such as the electric knife or electrocoagulation used under the respiratory medicine bronchoscope is electrically connected to the electrode plug 306, and then the energy device such as the electric knife or electrocoagulation used under the respiratory medicine bronchoscope enters the bronchial model 200. When the energy device such as the electric knife or electrocoagulation contacts the polyp head 301 at the end of the polyp replacement block 300 under the bronchoscope, the polyp head 301 is sintered and carbonized by electric current, and then the polyp head 301 can be removed, thereby completing the training of intrabronchial treatment surgery.

[0076] After completing one surgical training, the box cover 501 is opened again, the fixing plate 401 is rotated, and the fixing plate 401 and the electrode sheet 304 are taken out, and then the polyp replacement block 300 with the polyp head 301 removed is taken out and a new polyp replacement block 300 is installed, and the training and practice of the endobronchial treatment surgery can be carried out again. In this way, the endobronchial treatment surgery training model can be used repeatedly, and the polyp replacement block 300 will not deteriorate, rot or breed bacteria even if it is stored for a long time, which is conducive to ensuring the sanitation and safety of the training environment.

[0077] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for making a polyp replacement block, the steps are as follows: S1, pour konjac flour and gelatin sponge into a container containing deionized water, and heat to boiling; S2, add sodium bicarbonate and stir until completely dissolved; S3, add gelatin sponge again and continue stirring until completely dissolved; S4. Use a vacuum pump to evacuate the inside of the container and take it out after it is completely defoamed; S5. Add isopropyl acrylamide and acrylamide in sequence and stir until completely dissolved; S6. Add a reaction accelerator and stir until completely dissolved; S7, pouring into a mold, cooling and shaping, and making a polyp replacement block (300).

2. The method for making a polyp replacement block according to claim 1, characterized in that: The konjac powder described in S1 is 10g, the gelatin sponge is 2g, and the deionized water is 100g. The sodium bicarbonate described in S2 is 0.5g, and the gelatin sponge described in S3 is 0.5g. The isopropyl acrylamide described in S5 is 6g, and the acrylamide is 5g.

3. The method for making a polyp replacement block according to claim 2, characterized in that: The reaction accelerator is N,N,N',N'-tetramethylethylenediamine, and the N,N,N',N'-tetramethylethylenediamine is 0.2 g.

4. A training model for endobronchial treatment surgery, characterized in that: The invention comprises a model support (100), a support cover plate (101) being detachably connected to the model support (100), a bronchial model (200) being cooperatively mounted between the support cover plate (101) and the model support (100), a plurality of through holes (201) being provided on a side wall of the bronchial model (200) close to the support cover plate (101), a mounting seat (102) being fixedly connected to the support cover plate (101), and a mounting hole (103) being provided on the mounting seat (102) and being in communication with the through hole (201). , further comprising the polyp replacement block (300) according to any one of claims 1 to 3, wherein the polyp replacement block (300) is installed inside the mounting hole (103), the polyp replacement block (300) is passed through the through hole (201), the inner end of the polyp replacement block (300) is located inside the bronchial model (200), and a fixing component (400) is provided on the mounting seat (102), and the fixing component (400) is used to detachably mount the polyp replacement block (300) inside the mounting hole (103).

5. The endobronchial treatment surgery training model according to claim 4, characterized in that: The polyp replacement block (300) comprises a polyp head (301), a connecting rod (302), and a limiting boss (303) which are connected in sequence. The polyp head (301), the connecting rod (302), and the limiting boss (303) are made of conductive material and are integrally formed. The polyp head (301) is located inside the bronchial model (200). The connecting rod (302) is inserted into the through hole (201) and the mounting hole (103). A step hole (105) is provided at the outer end of the mounting hole (103). The end face of the limiting boss (303) close to the connecting rod (302) abuts against the step surface of the step hole (105). An electrode sheet (304) is provided between the limiting boss (303) and the fixing assembly (400).

6. The endobronchial treatment surgery training model according to claim 5, characterized in that: The fixing assembly (400) comprises a fixing plate (401); the inner side wall of the mounting hole (103) is symmetrically provided with a slot (402) extending in the circumferential direction of the mounting seat (102); the end of the slot (402) is provided with a slot entrance penetrating to the outer end of the mounting seat (102); the fixing plate (401) is symmetrically provided with an ear plate (403); the ear plate (403) corresponds to the slot (402); the ear plate (403) is cooperatively installed inside the slot (402); and the inner end surface of the fixing plate (401) abuts against the outer end surface of the electrode sheet (304).

7. The endobronchial treatment surgery training model according to claim 5, characterized in that: A wire (305) is fixedly connected to the outer side surface of the electrode sheet (304), one end of the wire (305) is electrically connected to the electrode sheet (304), a side wall of the mounting seat (102) is provided with an avoidance groove (106), and the other end of the wire (305) is passed through the avoidance groove (106) and is electrically connected to the electrode plug (306).

8. The endobronchial treatment surgery training model according to claim 6, characterized in that: The outer end surface of the fixed plate (401) is provided with a rotating portion (404).

9. The endobronchial treatment surgery training model according to claim 4, characterized in that: The number of the through holes (201) is set to three, and the three through holes (201) are respectively opened in the middle sections of the main bronchus, the left main bronchus, and the right main bronchus of the bronchial model (200).

10. The endobronchial treatment surgery training model according to claim 5, characterized in that: The shapes of the polyp head (301) include multi-bud branch shape, mushroom-shaped protrusion shape, and cauliflower-shaped protrusion shape.

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