Dynamic phantom device

Abstract

A dynamic prosthetic device includes: a fixed base, a movable base, an actuation unit, a diaphragm prosthesis, a rib prosthesis, and an visceral prosthesis. The movable base has a first receiving space, and the diaphragm prosthesis extends along a bottom surface and four sides to define a second receiving space within the first receiving space. By injecting a fluid into the second receiving space, the visceral prosthesis is brought into contact with the fluid at least at a height below, allowing for surgical practice of the visceral prosthesis combined with endoscopic ultrasound. The reciprocating movement of the movable base allows the visceral prosthesis carried by the movable base to simulate the respiratory rhythm of human organs during surgery. The visceral prosthesis is further covered by an outer membrane prosthesis, and water can be injected between the visceral prosthesis and the outer membrane prosthesis to form an isolation zone for heat source blocking during thermal ablation surgery practice. The dynamic prosthesis device of the present invention can provide a surgical practice device that simulates organ surgery combined with endoscopic ultrasound scanning, and also simulates respiratory rhythm and practices blocking the heat source of thermal ablation.

Description

Dynamic prosthesis device This invention relates to a prosthetic device for surgical training, and more particularly to a realistic dynamic prosthetic device that can simulate the breathing state of a real human body, allow water to be injected inside to perform endoscopic ultrasound scanning on internal organ prostheses, and also practice blocking the heat source of thermal ablation. Important surgeries performed on intra-abdominal organs, such as percutaneous transhepatic cholangio drainage (PTCD), are crucial procedures for draining bile when the bile duct is obstructed. To assist physicians or medical students in mastering PTCD techniques, many medical prostheses are currently available for practice. A dynamic PTCD training model provided by Chinese Patent Publication No. CN213183266U not only allows physicians or medical students to practice PTCD techniques, but also takes into account the linkage between the thoracic cavity and the abdominal cavity during natural breathing in the configuration of the prosthesis. The aforementioned dynamic PTCD training model includes a body shell, a diaphragm module, a rib module, a liver module, an intrahepatic bile duct module, a drive component, and multiple tumor modules. The intrahepatic bile duct module and the drive component are located within the simulated thoracic cavity, the liver module within the simulated abdominal cavity, the intrahepatic bile duct module within the liver module, and multiple tumor modules distributed within the liver module. The drive component drives the diaphragm module to reciprocate and vibrate between the simulated thoracic cavity and the simulated abdominal cavity at a preset frequency and amplitude, thereby simulating the linkage between the thoracic cavity and the abdominal cavity during natural breathing, restoring the real scene of PTCD surgery, and improving the learning effect. However, due to interference from intestinal gas, soft tissues, ribs, etc., many important surgeries performed on intra-abdominal organs require the assistance of endoscopic ultrasound (EUS) technology. Although the aforementioned Chinese patent publication number CN213183266U discloses the technology of a water injection tube and a water injection valve, the water injection tube and water injection valve are only used to inject colored liquid into the intrahepatic bile ducts. Since the body shell of this case has a transparent viewing window, it is mainly for the surgical trainee to observe visually. The function of the above-mentioned liquid injection operation is only to facilitate observation. This design involves injecting water through a valve, but the water only flows within the injection tube and is not injected into the simulated abdominal cavity. Therefore, the liver module cannot be presented as if it were submerged in water. If trainees wish to practice using endoscopic ultrasound to penetrate the abdominal cavity from the outside and perform underwater ultrasound scans of abdominal organs for related surgeries, the aforementioned dynamic PTCD training model cannot provide this functionality. In particular, when the endoscopic ultrasound needs to penetrate the simulated abdominal cavity from the supine body shell and then rotate to scan the liver module, it will be obstructed by the inflatable cushion. Since this design does not provide a solution for injecting water into the simulated abdominal cavity, it is impossible to practice scanning the liver module with endoscopic ultrasound without contact with it. Furthermore, the diaphragm in this case does not completely separate the simulated thoracic cavity from the simulated abdominal cavity. If water is injected into the simulated abdominal cavity, it is easy for water to flow into the simulated thoracic cavity or even out of the body shell. This makes it difficult for the aforementioned dynamic PTCD training model to maintain a certain water volume in the simulated abdominal cavity for endoscopic ultrasound practice. In addition, for organs in the abdominal cavity, if thermal ablation surgery, such as tumor surgery, is to be practiced, and during the practice of thermal ablation surgery, it is necessary to simultaneously practice isolating the heat source during the thermal ablation procedure to avoid damage to other organs and nerves near the surgical site. The aforementioned case does not provide a solution for isolating the heat source during thermal ablation surgery. Therefore, the inventors propose a dynamic prosthetic device, comprising: a fixed base defining a height direction; a movable base disposed on the fixed base, the movable base having a bottom surface and four side surfaces, the side surfaces being sequentially connected and all connected to the bottom surface above the height direction, and each side surface having a height in the height direction, forming a five-sided enclosed first accommodating space together with the bottom surface; an actuation unit connected to the movable base, the actuation unit driving the movable base to move on the fixed base along a horizontal direction perpendicular to the height direction; and a diaphragm prosthesis disposed on the fixed base. The movable seat is located in the first accommodating space, and the diaphragm prosthesis extends along the bottom surface and the side surface to define a second accommodating space that is at least closed on five sides in the first accommodating space; a rib prosthesis is disposed in the fixed seat and is located above the movable seat in the height direction; and an visceral prosthesis is disposed in the diaphragm prosthesis and located in the second accommodating space; a surgical practice is performed on the visceral prosthesis by injecting a fluid into the second accommodating space so that the visceral prosthesis is in contact with the fluid at least below in the height direction. Furthermore, a muscle prosthesis is positioned above the fixation base and the rib prosthesis in the height direction. The fixation base has a fixing block above the fixation base in the height direction, and the muscle prosthesis has a notch corresponding to the rib prosthesis and a fixing opening corresponding to the fixing block below the fixation base in the height direction. The muscle prosthesis comprises, by weight, 344 to 456 parts of polyvinyl alcohol hydrogel, 361.2 to 438.8 parts of sodium polyacrylate hydrogel, 193.8 to 206.2 parts of polyacrylamide hydrogel, 57.536 to 70.464 parts of crosslinking agent, 133.052 to 162.948 parts of initiator, 57.536 to 70.464 parts of reactant, and 89.9 to 110.1 parts of additives. Furthermore, an outer membrane prosthesis corresponds to and covers the internal organ prosthesis, the outer membrane prosthesis comprising between 1600 and 1900 parts by weight of deionized water, between 100 and 400 parts by weight of polyvinyl alcohol, and between 100 and 400 parts by weight of glycerol. Furthermore, a control unit is connected to the actuating unit. By operating the control unit, the actuating unit can drive the movable seat to move horizontally on the fixed seat, or change the frequency or amplitude of movement of the movable seat driven by the actuating unit. Furthermore, a movable plate is disposed on the fixed base and connected to the actuating unit. The movable plate has a first engaging portion, and the movable base has a second engaging portion. The movable plate and the movable base are joined together by the engagement of the first engaging portion and the second engaging portion. The movable base is joined to the fixed base via the movable plate. The actuating unit drives the movable base to move along the horizontal direction on the fixed base via the movable plate. The diaphragm prosthesis contains 1600 to 1900 parts by weight of deionized water, 100 to 400 parts by weight of polyvinyl alcohol, and 100 to 400 parts by weight of glycerol. The movable seat has a first groove that connects to the first accommodating space, the diaphragm prosthesis has a second groove that connects to the second accommodating space and corresponds to the first groove, the visceral prosthesis is located in the second groove, and there is a gap between the bottom of the visceral prosthesis and the bottom of the second groove in the height direction. The diaphragm prosthesis is either closed or has an opening at the top in the height direction. The actuation unit is one of a cam mechanism, a linkage mechanism, a cylinder mechanism, and an airbag mechanism, and the fixed base has a slide rail extending in the horizontal direction. The movable seat is guided by the slide rail to move in the horizontal direction on the fixed base. Based on the above technical features, the following effects can be preferably achieved: 1. The movable seat forms a first enclosed space on five sides, and the leak-proof diaphragm prosthesis further forms a second enclosed space on at least five sides. After fluid is injected into the second space, the movable seat and the diaphragm prosthesis provide a double leak-proof effect for the fluid, allowing the dynamic prosthesis device of the present invention to be injected with fluid. This allows the user to practice ultrasound scanning of the visceral prosthesis in the fluid without the endoscopic ultrasound touching the visceral prosthesis, so as to practice other related surgeries using ultrasound images. 2. The visceral prosthesis is covered by an outer membrane prosthesis. Through the combination of deionized water, polyvinyl alcohol and glycerol, the outer membrane prosthesis can prevent the rapid leakage of fluids such as saline, better assist the user in practicing hydrolysis, block the heat source during thermal ablation surgery, and avoid damage to other organs, tissues and nerves near the surgical site. 3. With the assistance of the notch, fixation block and second groove, muscle prostheses and visceral prostheses can be positioned more accurately, thereby helping the user to grasp the location of the visceral prostheses and avoid damage to the visceral prostheses during surgical practice. 4. The actuating unit is connected to the moving plate, which avoids the possibility of leakage caused by directly driving the connecting parts into the moving base. 1,1a: Fixture 11: Fixed block 12: Slide rail 2,2a: Moving board 21: First Card Section 3,3a: Mobile seat 31: Bottom 32: Side view 33: Second Card Combination Part 34: First groove 4,4a: Actuation unit 5: Diaphragm prosthesis 51: Second groove 52: Opening 6: Rib prosthesis 7,7b: Visceral prostheses 71b: Tumor prosthesis 8: Muscle prosthesis 81: Gap 82: Fixed port 9: Control Unit 10b: Outer membrane prosthesis A: Fluid B: Endoscopic ultrasound C: Surgical instruments D1: Height Direction D2: Horizontal direction E: physiological saline S1: First accommodating space S2: Second accommodating space [Figure 1] is a perspective view of the first embodiment of the present invention. [Figure 2] is a two-dimensional view of the first embodiment of the present invention, showing the appearance after omitting the muscle prosthesis. [Figure 3] is a top view of the first embodiment of the present invention, showing the top view after omitting the muscle prosthesis. [Figure 4] is an exploded view of the first embodiment of the present invention. [Figure 5] is a perspective view of the fixed base and movable plate portion of the first embodiment of the present invention. [Figure 6] is an animation diagram of the fixed base and movable plate portion of the first embodiment of the present invention. [Figure 7] is an animation diagram of the first embodiment of the present invention, illustrating the animation after omitting the muscle prosthesis. [Figure 8] is a cross-sectional view of the first embodiment of the present invention in an implemented state, illustrating the injection of fluid. [Figure 9] is a cross-sectional view of the first embodiment of the present invention in an implemented state, illustrating the observation of the visceral prosthesis from bottom to top using endoscopic ultrasound after fluid injection. [Figure 10] is a schematic diagram of the first embodiment of the present invention, illustrating surgical practice using surgical instruments. [Figure 11] is a perspective view of the second embodiment of the present invention. Figure 12 is an animation of the second embodiment of the present invention. [Figure 13] is a top view of a portion of the visceral prosthesis according to the third embodiment of the present invention. [Figure 14] is a top view of a portion of the visceral prosthesis of the third embodiment of the present invention in an implemented state. Based on the above technical features, the main functions of the dynamic prosthesis device of the present invention will be clearly demonstrated in the following embodiments. Please refer to Figures 1 to 4, which disclose a first embodiment of the dynamic prosthetic device of the present invention, comprising: a fixing base 1, defining a height direction D1 and a horizontal direction D2 perpendicular to the height direction D1. In a real human body, the height direction D1 corresponds to the direction from the back to the front abdomen, and the horizontal direction D2 corresponds to the direction from the abdominal cavity to the thoracic cavity. The fixing base 1 has a plurality of fixing blocks 11 above the height direction D1 and a slide rail 12 extending along the horizontal direction D2. In this embodiment, the fixing base 1 has two shells that can be joined together; however, they are not distinguished in the figures, and both shells are labeled as the fixing base 1. A movable plate 2 is disposed on the fixed base 1, and the movable plate 2 has a first engaging part 21. A movable seat 3 is mounted on the fixed seat 1 via the movable plate 2. The movable seat 3 has a bottom surface 31 and four side surfaces 32. The side surfaces 32 are connected sequentially and are all connected to the bottom surface 31 above the height direction D1. The side surfaces 32 have a height in the height direction D1 and together with the bottom surface 31 form a five-sided closed first accommodating space S1. The movable seat 3 also has a second engaging part 33. The movable plate 2 and the movable seat 3 are joined together by the engaging of the first engaging part 21 and the second engaging part 33. An actuation unit 4 is connected to the movable seat 3 via the movable plate 2 and is coupled to the slide rail 12. The actuation unit 4 drives the movable seat 3 to move along the horizontal direction D2 on the fixed seat 1 via the movable plate 2. The actuation unit 4 can be a cam mechanism, linkage mechanism, cylinder mechanism, or airbag mechanism, etc., and can be appropriately matched with a power source such as a motor. The present invention is not limited to this. This embodiment adopts a linkage mechanism, as shown in Figure 5. A diaphragm prosthesis 5 is disposed on the movable seat 3 and located in the first accommodating space S1. The diaphragm prosthesis 5 extends along the bottom surface 31 and the side surface 32 to define a second accommodating space S2 that is closed on at least five sides in the first accommodating space S1, as shown in Figure 8. A rib prosthesis 6 is disposed on the fixed base 1, and the rib prosthesis 6 is located above the movable base 3 in the height direction D1. An internal organ prosthesis 7 is disposed within the diaphragm prosthesis 5 and located in the second accommodating space S2. A muscle prosthesis 8 is disposed above the fixation base 1 and the rib prosthesis 6 in the height direction D1, and the muscle prosthesis 8 has a plurality of notches 81 corresponding to the rib prosthesis 6 and a plurality of fixation openings 82 corresponding to the fixation block 11 respectively below the height direction D1. A control unit 9 is connected to the actuation unit 4. The muscle prosthesis 8 comprises, by weight, 344 to 456 parts of polyvinyl alcohol hydrogel, 361.2 to 438.8 parts of sodium polyacrylate hydrogel, 193.8 to 206.2 parts of polyacrylamide hydrogel, 57.536 to 70.464 parts of crosslinking agent, 133.052 to 162.948 parts of initiator, 57.536 to 70.464 parts of reactant, and 89.9 to 110.1 parts of additives. The diaphragm prosthesis 5 comprises between 1600 and 1900 parts by weight of deionized water, between 100 and 400 parts by weight of polyvinyl alcohol, and between 100 and 400 parts by weight of glycerol. Alternatively, the diaphragm prosthesis 5 can also be made of other impermeable materials, such as plastic film. The manufacturing method for the muscle prosthesis 8, the diaphragm prosthesis 5, etc., is to mix the components in batches or all at once, heat them to, for example, between 80 and 90 degrees Celsius, and then place them in a suitable mold and freeze and thaw them several times in turn to shape them. In a preferred embodiment of the present invention, the visceral prosthesis 7 is illustrated only with prostheses of major viscera such as the liver, stomach, and gallbladder. In actual implementation, prostheses of other viscera such as the lower esophagus, small intestine, large intestine, and spleen can be added to simulate a more realistic human body, depending on different training needs. In the height direction D1, the diaphragm prosthesis 5 has an opening 52 at the top to facilitate the removal or insertion of the visceral prosthesis 7. In actual implementation, the diaphragm prosthesis 5 can be a completely closed shape, so that all six sides of the second accommodating space S2 are closed. Alternatively, the diaphragm prosthesis 5 can have openings 52 of different shapes at the top to allow the passage of the endoscopic ultrasound B in Figure 9 or the surgical instrument C in Figure 10. The shape of the diaphragm prosthesis 5 does not necessarily have to be the same as that of the movable seat 3; it can also be a sphere, a cylinder, etc., as long as the internal second accommodating space S2 can accommodate the visceral prosthesis 7 and the injected fluid A in Figure 8. All of these are feasible embodiments of the present invention. Please refer to Figures 2, 5, 6 and 7. The control unit 9 may be, for example, a linkage mechanism or a motor connected to the actuation unit 4 by a signal, and may be equipped with knobs, switches, etc. After operating the control unit 9, the actuation unit 4 can be controlled to move the actuation unit 4 along the horizontal direction D2 on the fixed base 1 via the moving plate 2 and guided by the slide rail 12, or the frequency or amplitude of the movement of the actuation unit 4 driving the actuation unit 3 can be changed, thereby simulating the breathing of real human beings of different ages and health conditions. Please refer to Figures 8 to 10, and in conjunction with Figure 4. The movable seat 3 has a first groove 34 that connects to the first accommodating space S1. The diaphragm prosthesis 5 has a second groove 51 that connects to the second accommodating space S2 and corresponds to the first groove 34. The visceral prosthesis 7 is located in the second groove 51. In the height direction D1, there is a gap between the bottom of the visceral prosthesis 7 and the bottom of the second groove 51. In actual implementation, a plurality of support columns may be provided in the second groove 51, or the shape of the second groove 51 may be appropriately adjusted according to the type of the visceral prosthesis 7 to ensure that the gap is maintained between the bottom of the visceral prosthesis 7 and the bottom of the second groove 51, while allowing the endoscopic ultrasound B to extend into the gap. However, in the drawings of this invention, the visceral prosthesis 7 is simply shown to be located in the second groove 51. With the assistance of the notch 81, the fixing port 82, the fixing block 11 and the second groove 51, the muscle prosthesis 8 and the visceral prosthesis 7 can be positioned more accurately, thereby helping doctors or medical students to grasp the location of the visceral prosthesis 7 and avoid damaging the visceral prosthesis 7 during surgical practice. When the user wants to practice the surgery, fluid A (in this embodiment, fluid A is water) can be injected into the second accommodating space S2, so that the visceral prosthesis 7 is in contact with fluid A at least below the height direction D1. Next, the user can insert an endoscopic ultrasound B (or ultrasound endoscope) into the second accommodating space S2, with the tip of the endoscopic ultrasound B inserted into fluid A, and then rotate the tip of the endoscopic ultrasound B to point at the visceral prosthesis 7. Using fluid A as the scanning medium, the endoscopic ultrasound B can scan the visceral prosthesis 7 from bottom to top in fluid A even without contact with it, to obtain ultrasound images, thereby assisting in other related surgeries, such as liver tumor surgery, gallbladder surgery, pancreatic surgery, etc. The illustration of the surgical instrument C used in other assistive surgeries is omitted in Figure 8. The process of injecting fluid A can also help the user to control the appropriate amount of fluid A, so as to avoid too little fluid affecting the image of the endoscopic ultrasound B, and also to avoid too much fluid causing excessive pressure in the second accommodating space S2, increasing the risk of infection of other visceral prostheses 7, etc. After the fluid A is injected, the user can select the appropriate surgical instrument C to perform the surgical exercise on the visceral prosthesis 7 according to the type of surgical exercise. For example, after the endoscopic ultrasound B determines the location of the lesion, a drainage tube is used to drain the visceral prosthesis 7, an electrocautery knife is used to remove part of the visceral prosthesis 7, a biopsy forceps is used to obtain part of the visceral prosthesis 7, and so on. Since the movable seat 3 and the diaphragm prosthesis 5 can form a double leak-proof effect on the fluid A, and the actuation unit 4 is connected to the movable plate 2, the possibility of leakage caused by directly inserting the connector into the movable seat 3 can be avoided. This allows the dynamic prosthesis device to allow the user to perform a variety of surgical practices while the fluid A is injected. Please refer to Figures 11 and 12, which disclose the second embodiment of the dynamic prosthesis device of the present invention. The only difference between this embodiment and the first embodiment is that: in the first embodiment [please refer to Figure 5 for the first embodiment], the actuation unit 4 adopts a linkage mechanism; in this embodiment, the actuation unit 4a adopts a cylinder mechanism, and the actuation unit 4a also drives the moving seat 3a to move along the horizontal direction D2 on the fixed seat 1a via the moving plate 2a. The remaining structures of the dynamic prosthesis device in the second embodiment are the same as or correspond to those in the first embodiment, and will not be repeated here. In addition to the cylinder mechanism, it is also a feasible embodiment to use an airbag that can be repeatedly inflated and deflated to drive the movable seat 3a, for example, by using an air pump connected to the airbag to simulate the expansion and contraction of the lungs. Please refer to Figures 13 and 14, which disclose the third embodiment of the dynamic prosthesis device of the present invention. In this embodiment, an outer membrane prosthesis 10b corresponds to and covers the visceral prosthesis 7b outside the visceral prosthesis 7b. The outer membrane prosthesis 10b contains deionized water with a weight range of 1600 to 1900 parts, polyvinyl alcohol with a weight range of 100 to 400 parts, and glycerol with a weight range of 100 to 400 parts. The manufacturing method of the outer membrane prosthesis 10b can also be the same as the manufacturing method of the muscle prosthesis 8 and the diaphragm prosthesis 5 in the first embodiment of Figure 4. The remaining structures of the dynamic prosthesis device in the third embodiment are the same as or correspond to those in the first embodiment, and will not be repeated here. The dynamic prosthesis device of the third embodiment is more suitable for surgical practice such as thermal ablation. Similarly, as shown in Figure 9, the fluid A is injected first, and the visceral prosthesis 7b is observed through the endoscopic ultrasound B. The imaging effect of the outer membrane prosthesis 10b under ultrasound imaging is the same as that of real human tissue, and no artifacts are produced. After determining the location of a tumor prosthesis 71b within the visceral prosthesis 7b, depending on whether there are other important internal organs, nerves, blood vessels, etc. near the location of the tumor prosthesis 71b, a saline solution E can be appropriately injected between the outer membrane prosthesis 10b and the visceral prosthesis 7b to simulate the hydrolysis technique performed in a real human body to separate different internal organs, nerves, and blood vessels, thus blocking the heat source of thermal ablation and preventing the heat source from damaging nearby internal organs, nerves, blood vessels, etc. Then, as in Figure 10, the user can use the thermal ablation device as surgical instrument C to practice thermal ablation of the tumor prosthesis 71b within the visceral prosthesis 7b. Based on the above description of the embodiments, one can fully understand the operation, use and effects of the present invention. However, the above embodiments are only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Simple equivalent changes and modifications made in accordance with the scope of the patent application and the description of the invention are all within the scope of the present invention. 1: Fixed base 11: Fixed block 2: Mobile board 3: Portable seat 6: Rib prosthesis 8: Muscle prosthesis 81: Gap 82: Fixed port 9: Control Unit D1: Height Direction D2: Horizontal direction

Claims

1. A dynamic prosthetic device includes: a fixed base defining a height direction; a movable base disposed on the fixed base, the movable base having a bottom surface and four side surfaces, the side surfaces being sequentially connected and all connected to the bottom surface above the height direction, and each side surface having a height in the height direction, forming a five-sided enclosed first receiving space together with the bottom surface; an actuation unit connected to the movable base, the actuation unit driving the movable base to move on the fixed base in a horizontal direction perpendicular to the height direction; a diaphragm prosthesis disposed on the movable base and located in the first receiving space, the diaphragm prosthesis extending along the bottom surface and the side surfaces to define a second receiving space in the first receiving space that is also enclosed on at least five sides; a rib prosthesis disposed on the fixed base and located above the movable base in the height direction; and an internal organ prosthesis disposed within the diaphragm prosthesis and located in the second receiving space; A surgical practice is performed on the visceral prosthesis by injecting a fluid into the second accommodating space so that the visceral prosthesis is in contact with the fluid at least below in the height direction. As described in claim 1, the dynamic prosthesis device further includes a muscle prosthesis positioned above the fixation base and the rib prosthesis in the height direction, a fixation block above the fixation base in the height direction, and a notch corresponding to the rib prosthesis and a fixation opening corresponding to the fixation block below the muscle prosthesis in the height direction. The dynamic prosthetic device as described in claim 2, wherein, The muscle prosthesis comprises, by weight, 344 to 456 parts of polyvinyl alcohol hydrogel, 361.2 to 438.8 parts of sodium polyacrylate hydrogel, 193.8 to 206.2 parts of polyacrylamide hydrogel, 57.536 to 70.464 parts of crosslinking agent, 133.052 to 162.948 parts of initiator, 57.536 to 70.464 parts of reactant, and 89.9 to 110.1 parts of additives. As described in claim 1, the dynamic prosthesis device further includes an outer membrane prosthesis corresponding to and covering the visceral prosthesis, the outer membrane prosthesis comprising between 1600 and 1900 parts by weight of deionized water, between 100 and 400 parts by weight of polyvinyl alcohol, and between 100 and 400 parts by weight of glycerol. As described in claim 1, the dynamic prosthesis device further includes a control unit connected to the actuation unit. By operating the control unit, the actuation unit can drive the movable seat to move horizontally on the fixed seat, or change the frequency or amplitude of movement of the movable seat driven by the actuation unit. As described in claim 1, the dynamic prosthesis device further includes a movable plate disposed on the fixed base and connected to the actuation unit. The movable plate has a first engaging portion, and the movable base has a second engaging portion. The movable plate and the movable base are engaged with each other by the engagement of the first engaging portion and the second engaging portion. The movable base is engaged with the fixed base via the movable plate, and the actuation unit drives the movable base to move along the horizontal direction on the fixed base via the movable plate. The dynamic prosthetic device as described in claim 1, wherein, The diaphragm prosthesis is composed of 1600 to 1900 parts by weight of deionized water, 100 to 400 parts by weight of polyvinyl alcohol, and 100 to 400 parts by weight of glycerol. The dynamic prosthetic device as described in claim 1, wherein, The movable seat has a first groove connecting to the first accommodating space, the diaphragm prosthesis has a second groove connecting to the second accommodating space and corresponding to the first groove, the visceral prosthesis is located in the second groove, and in the height direction, there is a gap between the bottom of the visceral prosthesis and the bottom of the second groove. The dynamic prosthetic device as described in claim 1, wherein, The diaphragm prosthesis is a closed shape, or, in the height direction, the diaphragm prosthesis has an opening at the top. The dynamic prosthetic device as described in claim 1, wherein, The actuating unit is one of a cam mechanism, a linkage mechanism, a cylinder mechanism, and an airbag mechanism, and the fixed base has a slide rail extending in the horizontal direction. The movable seat is guided by the slide rail to move in the horizontal direction on the fixed base.

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