Variable supporting platform for choledochoscope simulation operation

Abstract

The utility model relates to the technical field of choledochoscope training, in particular to a variable supporting platform for choledochoscope simulation operation. Comprising a display device, the display device comprises a tray, and a positioning block and a plurality of supporting frames are fixedly arranged on the bottom face in the tray. According to the utility model, after the pipe joint is sleeved on the outer side of the extension pipe, a student twists the worm to enable the plurality of racks to drive the corresponding arc-shaped clamping plates to approach the extension pipe synchronously until the plurality of arc-shaped clamping plates clamp and fix the pipe joint on the extension pipe, and meanwhile, one rack drives the piston rod to move synchronously; and air in the air pumping cavity is pressed into the sealing cavity through the flow channel, so that the rubber ring expands in the direction away from the axis of the extension pipe until the rubber ring is in close contact with the circumferential inner wall of the pipe joint, the sealing performance between the pipe joint and the extension pipe is further enhanced, water flow in the model body is prevented from splashing to the outside of the tray, and the service life of the model body is prolonged. And the cleanness of a choledochoscope surgery operation simulation environment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of cholangioscopy training technology, and more specifically, to a variable support platform for cholangioscopy simulation operation. Background Technology

[0002] Cholangioscopic lithotripsy, a minimally invasive surgical procedure specifically designed to treat gallstones, can be performed using either a cholangioscope or an endoscope. Minimally invasive surgery often places extremely high demands on the surgeon's skill level, as the surgeon needs to rely on superb skills to perform precise operations in the delicate and complex bile duct area of ​​the human body. Therefore, extensive and sufficient practice is necessary to effectively improve one's skills.

[0003] Currently, there are very few professional training models for biliary surgery. In view of this situation, we have carefully designed and developed a biliary model body 2 for cholangioscopy simulation training. The end of the model body 2 is fixed with a pipe connector 21 for connecting to the display stand, and includes extrahepatic bile ducts and intrahepatic bile ducts. The model body 2 is made using advanced 3D additive manufacturing technology to ensure that the anatomical structure of each component is highly realistic and can accurately reproduce the spatial structure and physiological characteristics of the human biliary system.

[0004] However, when trainees use the model body 2 to simulate cholangioscopy, the various components of the model body 2 are difficult to keep stable in fixed positions to simulate their actual state inside the human body. This makes the model body 2 less practical and targeted for training. At the same time, when using the model body 2 to simulate surgery, water needs to be continuously injected into the model body 2 to simulate the fluid flow during cholangioscopy. However, in the current technology, it is difficult to centrally treat the simulated water flowing out of the model body 2. There is a problem that the water flow spreads around the model body 2, affecting the cleanliness and clarity of the cholangioscopy simulation environment, which causes inconvenience to cholangioscopy simulation training. Utility Model Content

[0005] The purpose of this invention is to provide a variable support platform for cholangioscopy simulation operations, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, one of the objectives of this utility model is to provide a variable support platform for cholangioscopy simulation operations, including a display device. The display device includes a tray, on which a positioning block and several support frames are fixedly installed on the bottom surface. The model body is placed on the upper side of the support frames and is positioned on one side of the positioning block. An extension tube is fixedly connected to the side of the positioning block near the model body, and a pipe connector is sleeved on the outside of the extension tube. A drainage channel communicating with the extension tube is opened inside the positioning block. A drainage groove is opened on one side of the tray near the bottom, and a clamping mechanism is provided on the outside of the extension tube. The clamping mechanism is used to clamp and fix the pipe connector on the extension tube. An annular groove is coaxially opened on the extension tube. A rubber ring is fixed inside the annular groove away from the axis of the extension tube. The rubber ring is located inside the clamping mechanism. A sealing cavity is formed between the side of the rubber ring near the axis of the extension tube and the inner wall of the annular groove. An air pumping mechanism is provided on the lower side of the clamping mechanism. When the clamping mechanism clamps and fixes the position of the pipe connector, the air pumping mechanism pumps air into the sealed cavity.

[0007] As a further improvement to this technical solution, the clamping mechanism includes an internal gear coaxially disposed on the outside of the extension tube. Several guide frames are slidably disposed on the circumferential sidewall of the internal gear. One end of the guide frame is fixedly disposed on the sidewall of the positioning block. Several first gears are meshed in a circular array inside the internal gear. The first gear is rotatably disposed on one side of the positioning block. A second gear is coaxially fixedly connected to the side of the first gear away from the positioning block. A rack is meshed to one side of the second gear. An arc-shaped clamping plate is fixedly connected to the end of the rack near the extension tube.

[0008] As a further improvement to this technical solution, a guide groove is coaxially provided on the rack, and a T-shaped block is slidably arranged inside the guide groove. One end of the T-shaped block is fixedly set on the side wall of the positioning block. When several racks approach the extension pipe along the corresponding guide groove axis, several arc-shaped clamps approach each other and form a circular structure, and the inner arc surface of the arc-shaped clamps contacts the circumferential side of the pipe joint.

[0009] As a further improvement to this technical solution, a semi-worm gear is coaxially fixedly connected to the circumferential side wall of the internal gear, and a worm is meshed with the upper side of the semi-worm gear, with the worm rotatably positioned on one side of the positioning block.

[0010] As a further improvement to this technical solution, the positioning block has a pumping chamber and an inverted L-shaped flow channel inside. The pumping chamber is located on the lower side of the extension pipe. The two ends of the flow channel are connected to the pumping chamber and the sealing chamber, respectively. A through groove is provided on one side of the pumping chamber near the bottom.

[0011] As a further improvement to this technical solution, the pumping mechanism includes a piston rod slidably disposed inside the pumping chamber. An L-shaped second connecting rod is fixedly disposed at the bottom of the piston rod. The horizontal section of the second connecting rod extends through the through groove to the outside of the pumping chamber. A first connecting rod is fixedly connected to one end of the horizontal section of the second connecting rod located outside the pumping chamber. The upper end of the first connecting rod is fixedly disposed on one of the racks.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This variable support platform for cholangioscopy simulation allows the trainee to rotate a worm gear after the tube connector is fitted onto the outside of the extension tube. This causes several racks to move corresponding arc-shaped clamps towards the extension tube, until the clamps secure the tube connector to the extension tube, reducing the gap between the tube connector and the extension tube. Simultaneously, one rack moves a piston rod, forcing air from the pump chamber into the sealed cavity through a flow channel. This causes the rubber ring to expand away from the extension tube axis until it makes tight contact with the inner circumference of the tube connector. This further enhances the seal between the tube connector and the extension tube, preventing water from splashing from inside the model onto the outside of the tray and ensuring a clean simulation environment for cholangioscopy.

[0014] 2. The variable support platform used for cholangioscopy simulation can keep all components of the model body stable in a fixed position after the model body is placed on several support frames and the tube connector is sleeved on the outside of the extension tube. This simulates the actual state of the model body in the human body and ensures that the model body is consistent with the bile duct structure in the actual human body during the simulation operation, thereby improving the realism of the cholangioscopy operation simulation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention and the main model body after assembly;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the main structure of the model of this utility model;

[0019] Figure 5 This is a partial structural diagram of the present invention and the main model body after assembly;

[0020] Figure 6 This is a partial structural cross-sectional view of the present invention and the main model body after assembly;

[0021] Figure 7 This is one of the partial structural schematic diagrams of this utility model;

[0022] Figure 8 This is the second partial structural schematic diagram of the present utility model;

[0023] Figure 9 This is a cross-sectional view of part of the structure of this utility model.

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Display equipment; 11. Tray; 12. Positioning block; 121. Drainage channel; 122. Extension pipe; 1221. Annular groove; 123. Flow channel; 124. Pump chamber; 13. Support frame; 14. Drainage trough;

[0026] 2. Main body of the model; 21. Pipe fittings;

[0027] 3. Clamping mechanism; 31. Arc-shaped clamping plate; 32. Rack; 33. T-block; 34. Internal gear; 35. Guide frame; 36. First gear; 37. Second gear; 38. Half worm gear; 39. Worm;

[0028] 4. Rubber ring;

[0029] 5. Pumping mechanism; 51. First connecting rod; 52. Second connecting rod; 53. Piston rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Please see Figure 4As shown, a gallbladder model body 2 for simulating real cholangioscopic surgery consists of an extrahepatic bile duct model, a gallbladder model, a common bile duct model, a common hepatic duct model, a left hepatic duct model, a right hepatic duct model, and an intrahepatic bile duct model. One end of the common bile duct model has a simulated common bile duct incision, allowing trainees to enter the bile duct lumen through the simulated incision using a cholangioscope for surgical procedures. Model body 2 is manufactured using 3D printing technology and accurately constructs a complex biliary system model, including the common bile duct, common hepatic duct, cystic duct, and their branches, based on real human biliary anatomical data. This highly realistic model accurately reflects the spatial structure and physiological characteristics of the biliary system, enabling trainees to fully understand the anatomical structure and pathological characteristics of the biliary system before actual surgery, thus facilitating further... This simulation system enhances the realism of the environment and provides doctors with an extremely realistic operating environment. Whether it's choledochoscopy for stone removal or other complex biliary surgeries, doctors can use this simulation training system to practice repeatedly, thereby continuously improving their skills in biliary surgery and better serving patients. The main body of the model 2 uses special biocompatible materials that not only simulate the softness and elasticity of real biliary tissue but also have good light transmittance and corrosion resistance. Trainees can master the basic operating skills of choledochoscopy through simulation training without involving real patients, and develop corresponding surgical strategies based on different lesions, effectively improving the safety and success rate of surgery and reducing intraoperative complications and operational errors.

[0033] Please see Figure 1-3 and Figure 5-9As shown, the purpose of this embodiment is to provide a variable support platform for cholangioscopy simulation operations, including a display device 1. The display device 1 includes a tray 11, on which several support frames 13 are fixedly mounted. Each support frame 13 consists of a vertical rod fixed to the tray 11 and an arc-shaped support plate slidably inserted into the upper end of the vertical rod. The position of the arc-shaped support plate is adjusted according to the placement position of the corresponding gallbladder model, while the vertical rod fixes the position of the arc-shaped support plate. This allows the several support frames 13 to be positioned according to the placement position of the gallbladder model, thereby enabling the device to stably support gallbladder models at different placement angles. The model body 2 is placed on the upper side of the several support frames 13 and contacts the inner arc surface of the arc-shaped support plate. The several support frames 13 provide support for the extrahepatic bile duct model, gallbladder model, common bile duct model, common hepatic duct model, left hepatic duct model, right hepatic duct model, and intrahepatic bile duct model, respectively, thereby limiting the lateral movement of the model body 2 and improving stability. To ensure the stability of the gallbladder model, a positioning block 12 is fixedly installed on the bottom surface inside the tray 11. The model body 2 is positioned on one side of the positioning block 12, and an extension tube 122 is fixedly connected to the side of the positioning block 12 near the model body 2. At the same time, a rigid pipe connector 21 is fixedly installed at the end of the common bile duct model near the simulated common bile duct incision. The pipe connector 21 is sleeved on the outside of the extension tube 122. The pipe connector 21 and the extension tube 122 work together to support one end of the common bile duct model, so that all components of the model body 2 can remain stable in a fixed position, simulating its actual state in the human body. This ensures that the model body 2 is consistent with the bile duct structure in the actual human body during the simulation operation. At the same time, a drainage channel 121 connected to the extension tube 122 is opened inside the positioning block 12. Trainees enter the bile duct cavity through the drainage channel 121 and the simulated common bile duct incision to perform surgical operations, thereby enhancing the realism of the choledochoscopy operation simulation.

[0034] After fixing the various components of the model body 2 through the display device 1, the location, size, and shape of stones and strictures in the bile duct inside the model body 2 can be adjusted according to actual needs, greatly enriching the types of lesions and the diversity of simulations. At the same time, trainees can not only become familiar with the diagnosis and treatment of common bile duct lesions during training, but also cope with the operational challenges of different complex lesions. The model body 2 supports seamless docking with real cholangioscope equipment. Trainees can intuitively feel the operational difficulty and skill requirements under different lesion conditions through actual operation of the cholangioscope. Through repeated practice, trainees can improve their precise operation ability of the cholangioscope and better cope with unexpected situations and technical challenges in actual surgery, ensuring a more skillful performance in surgery.

[0035] During the simulated surgery, water needs to be continuously injected into the interior of the model body 2 to simulate the fluid flow during cholangioscopy. For this purpose, a drainage trough 14 is provided on one side of the tray 11 near the bottom. The drainage trough 14 is connected to an external wastewater pipe. At the same time, the bottom surface inside the tray 11 is set as an inclined surface, and the drainage trough 14 is located at the lowest point of the inclined surface. After the trainee connects several external tap water pipes to the open end of the model body 2 except for the simulated common bile duct incision, water is injected into the interior of the model body 2 through the tap water pipes. The water flows along the interior of the model body 2 until it flows into the extension tube 122 through the simulated common bile duct incision. Then the water flows into the interior of the tray 11 through the drainage channel 121 and is discharged into the wastewater pipe through the drainage trough 14, thereby preventing water from overflowing the tray 11 and ensuring the cleanliness and clarity of the operating area of ​​the tray 11.

[0036] To enhance the sealing between the pipe joint 21 and the extension pipe 122 and prevent water inside the model body 2 from splashing onto the outside of the tray 11 through the gap between the pipe joint 21 and the extension pipe 122, a clamping mechanism 3 is provided on the outside of the extension pipe 122. The clamping mechanism 3 is used to clamp and fix the pipe joint 21 onto the extension pipe 122. The structure of the clamping mechanism 3 is detailed below, referring to... Figure 7 The clamping mechanism 3 includes an internal gear 34 coaxially disposed on the outside of the extension tube 122. Several guide frames 35 are slidably disposed on the circumferential sidewall of the internal gear 34. One end of each guide frame 35 is fixedly disposed on the sidewall of the positioning block 12. The guide frames 35 restrict the internal gear 34 to rotate only around its axis, improving the stability of the internal gear 34's rotation. Simultaneously, several first gears 36 are meshed in a circular array inside the internal gear 34. The first gears 36 are rotatably disposed on one side of the positioning block 12. A second gear 37 is coaxially fixedly connected to the side of the first gear 36 away from the positioning block 12. A rack 32 is meshed to one side of the second gear 37. The end of the rack 32 closest to the extension tube 122 is fixedly connected to... There is an arc-shaped clamping plate 31, and a guide groove is coaxially opened on the rack 32. A T-shaped block 33 is slidably arranged inside the guide groove. One end of the T-shaped block 33 is fixedly set on the side wall of the positioning block 12. The T-shaped block 33 and the guide groove cooperate to restrict the movement path of the rack 32, so that the rack 32 can only move along the axis of the guide groove. When several racks 32 approach the extension tube 122 along the corresponding axis of the guide groove, several arc-shaped clamping plates 31 approach each other and form a circular structure. When several arc-shaped clamping plates 31 are combined into a circular structure, its inner arc surface contacts the circumferential side of the pipe joint 21. At this time, several arc-shaped clamping plates 31 clamp and fix the outer wall of the joint 21.

[0037] Meanwhile, a semi-worm gear 38 is coaxially fixedly connected to the circumferential side wall of the internal gear 34. A worm 39 is meshed with the upper side of the semi-worm gear 38. The worm 39 is rotatably set on one side of the positioning block 12. When the trainee fully fits the pipe joint 21 onto the outside of the extension tube 122, several arc-shaped clamps 31 are distributed in a ring on the outside of the pipe joint 21. The trainee holds the knob fixed on the worm 39 and turns the worm 39. Through the meshing transmission between the worm 39 and the semi-worm gear 38, the semi-worm gear 38 drives the internal gear 34 to rotate around its axis. Through the internal gear 34 and the first gear 36, The meshing transmission causes several first gears 36 to drive corresponding second gears 37 to rotate synchronously. Through the meshing transmission of the second gears 37 and racks 32, several racks 32 drive corresponding arc-shaped clamps 31 to synchronously approach the axis of the extension pipe 122 until several arc-shaped clamps 31 are in close contact with the circumferential sidewall of the pipe joint 21, clamping and fixing the pipe joint 21 onto the extension pipe 122. This reduces the gap between the pipe joint 21 and the extension pipe 122, reducing the possibility of water splashing to the outside of the tray 11 through the gap between the pipe joint 21 and the extension pipe 122.

[0038] Meanwhile, an annular groove 1221 is coaxially formed on the extension tube 122. A rubber ring 4 is fixed inside the annular groove 1221 at a position away from the axis of the extension tube 122. The rubber ring 4 is set inside the clamping mechanism 3. A sealing cavity is formed between the side of the rubber ring 4 near the axis of the extension tube 122 and the inner wall of the annular groove 1221. A pumping mechanism 5 is set on the lower side of the clamping mechanism 3. When the clamping mechanism 3 clamps the fixed pipe joint 21, the pumping mechanism 5 pumps air into the sealing cavity. A pumping chamber 124 and an inverted L-shaped flow channel 123 are formed inside the positioning block 12. The pumping chamber 124 is set on the lower side of the extension tube 122. The two ends of the flow channel 123 are connected to the pumping chamber 124 and the sealing cavity, respectively. A through groove is formed on one side of the pumping chamber 124 near the bottom. The structure of the clamping mechanism 3 is detailed below, refer to Figure 6 , Figure 8 and Figure 9The pumping mechanism 5 includes a piston rod 53 slidably disposed inside the pumping chamber 124. An L-shaped second connecting rod 52 is fixedly disposed at the bottom of the piston rod 53. The horizontal section of the second connecting rod 52 extends through a through groove to the outside of the pumping chamber 124. A first connecting rod 51 is fixedly connected to one end of the horizontal section of the second connecting rod 52 located outside the pumping chamber 124. The first connecting rod 51 and the second connecting rod 52 form a U-shaped structure. The upper end of the first connecting rod 51 is fixedly disposed on one of the racks 32. When several racks 32 drive the corresponding arc-shaped clamps 31 to simultaneously approach the axis of the extension tube 122, the several arc-shaped clamps 31 clamp and fix the pipe joint 21. At this time, one of the racks 32 drives the first connecting rod 51 to move along the axis of the through groove. The moving first connecting rod 51 drives the piston rod 53 to approach the flow channel 123 through the second connecting rod 52. This forces the air inside the pump chamber 124 into the interior of the sealing chamber through the flow channel 123. This causes the rubber ring 4 to expand away from the axis of the extension tube 122 until the rubber ring 4 is in close contact with the inner circumference of the pipe joint 21. This seals the gap between the pipe joint 21 and the extension tube 122, thereby further enhancing the sealing between the pipe joint 21 and the extension tube 122 and ensuring that no water splashes onto the outside of the tray 11, thus ensuring the cleanliness of the simulated environment.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A variable support platform for the simulated operation of a choledochoscope, comprising a demonstration device (1), characterized in that: The display device (1) includes a tray (11), a positioning block (12) and a plurality of support frames (13) are fixedly arranged on the bottom surface inside the tray (11), a model body (2) is placed on the upper side of the plurality of support frames (13), the model body (2) is arranged on one side of the positioning block (12), an extension pipe (122) is fixedly connected to the side of the positioning block (12) close to the model body (2), a pipe joint (21) is sleeved on the outer side of the extension pipe (122), a drainage channel (121) is formed in the positioning block (12) and communicates with the extension pipe (122), a drainage groove (14) is formed in the tray (11) at a position close to the bottom end, a clamping mechanism (3) is arranged on the outer side of the extension pipe (122), the clamping mechanism (3) is used for clamping and fixing the pipe joint (21) on the extension pipe (122), an annular groove (1221) is coaxially formed in the extension pipe (122), a rubber ring (4) is fixedly arranged in the annular groove (1221) at a position away from the axis of the extension pipe (122), the rubber ring (4) is arranged in the clamping mechanism (3), a sealed cavity is formed between the side of the rubber ring (4) close to the axis of the extension pipe (122) and the inner wall of the annular groove (1221), a pump air mechanism (5) is arranged on the lower side of the clamping mechanism (3), when the clamping mechanism (3) clamps and fixes the pipe joint (21), the pump air mechanism (5) pumps air into the sealed cavity.

2. The variable support platform for cholangioscopy simulation according to claim 1, wherein: The clamping mechanism (3) includes an internal gear (34) coaxially arranged on the outer side of the extension pipe (122), a plurality of guide frames (35) are slidably arranged on the circumferential side wall of the internal gear (34), one end of the guide frame (35) is fixedly arranged on the side wall of the positioning block (12), a plurality of first gears (36) are annularly arranged and meshed in the internal gear (34), the first gear (36) is rotatably arranged on one side of the positioning block (12), a second gear (37) is coaxially and fixedly connected to the side of the first gear (36) away from the positioning block (12), a rack (32) is meshedly connected to one side of the second gear (37), and an arc-shaped clamping plate (31) is fixedly connected to one end of the rack (32) close to the extension pipe (122).

3. The variable support platform for cholangioscopy simulation according to claim 2, wherein: A guide groove is coaxially formed in the rack (32), and a T-shaped block (33) is slidably arranged in the guide groove, one end of the T-shaped block (33) is fixedly arranged on the side wall of the positioning block (12), when the plurality of racks (32) are close to the extension pipe (122) along the axis direction of the corresponding guide groove, the plurality of arc-shaped clamping plates (31) are close to each other and form a circular structure, and the inner arc surface of the arc-shaped clamping plate (31) is in contact with the circumferential side surface of the pipe joint (21).

4. The variable support platform for cholangioscopy simulation according to claim 2, wherein: A half worm wheel (38) is coaxially and fixedly connected to the circumferential side wall of the internal gear (34), a worm (39) is meshedly connected to the upper side of the half worm wheel (38), and the worm (39) is rotatably arranged on one side of the positioning block (12).

5. The variable support platform for simulated operation of a choledochoscope according to claim 2, wherein: The inside of the positioning block (12) is provided with a pumping cavity (124) and a reverse L-shaped flow channel (123), the pumping cavity (124) is arranged at the lower side of the extension pipe (122), the two ends of the flow channel (123) are respectively connected with the pumping cavity (124) and the sealing cavity, and a through groove is formed in the position close to the bottom end of one side of the pumping cavity (124).

6. The variable support platform for simulated operation of a choledochoscope according to claim 5, wherein: The pumping mechanism (5) comprises a piston rod (53) slidingly arranged in the pumping cavity (124), the bottom of the piston rod (53) is fixedly provided with an L-shaped second connecting rod (52), the horizontal section of the second connecting rod (52) extends to the outside of the pumping cavity (124) through the through groove, one end of the horizontal section of the second connecting rod (52) located outside the pumping cavity (124) is fixedly connected with a first connecting rod (51), and the upper end of the first connecting rod (51) is fixedly arranged on one of the racks (32).

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