Biliary tract auxiliary fluid demonstration device for simulation teaching

Abstract

The invention relates to a biliary tract auxiliary fluid demonstration device for simulation teaching. The biliary tract auxiliary fluid demonstration device comprises a demonstration board, a threaded rod, a worm and gear device and a positioning extrusion device, the threaded rod is parallel to the demonstration board and is rotatably connected with the vertical extension parts at the two ends of the demonstration board, the demonstration board is provided with a sliding groove, the lifting block is embedded into the sliding groove, the threaded rod is located on one side of the demonstration board, the positioning block is located on the other side of the demonstration board, and the width of the positioning block is larger than that of the sliding groove; the turbine worm device comprises a turbine and a worm, the turbine and the threaded rod are coaxially fixed, and the worm is perpendicular to the threaded rod and is fixedly connected with a knob; the positioning extrusion device comprises a lifting block in threaded engagement with the threaded rod, the side of the lifting block is connected with a positioning block, an extrusion device part is arranged on the positioning block, and the extrusion part can extrude the elastic pipeline of the biliary tract model penetrating into the positioning block. The biliary tract auxiliary fluid demonstration device can simulate real bile duct wriggling extrusion to carry out science popularization explanation.

Description

Technical Field

[0001] The invention relates to a medical teaching demonstration device, in particular to a bile duct auxiliary fluid demonstration device for simulated teaching. Background Art

[0002] Globally, the morbidity and mortality of gallbladder and biliary diseases are high, especially in China, where most patients are diagnosed in the middle and late stages of the disease. The treatment of these diseases is very challenging because the gallbladder and bile duct have complex anatomical structures and small sizes, which increases the difficulty of surgery and treatment. In addition, people often neglect the prevention and screening of these diseases in their daily lives. Therefore, regular screening for gallbladder disease is particularly important, which helps with early detection and effective intervention, and reduces the serious consequences of the disease.

[0003] At present, the commonly used simulation equipment in bile duct simulation teaching is a Y-shaped tube made of highly transparent silicone rubber. However, in real cases, the bile duct has different positions and degrees of stenosis or stone blockage. The existing device is not enough to intuitively display the relevant disease phenomena, which will reduce people's mastery of bile duct knowledge. Therefore, an invention is needed to provide a simulation device that is closer to the real clinical situation. In order to improve the public's knowledge of gallbladder and biliary diseases and understand the pathogenesis, this device is designed to demonstrate teaching operations for hospital medical staff and patients in popular science activities. Summary of the invention

[0004] The present invention provides a bile duct auxiliary fluid demonstration device which can simulate different stenosis positions of the bile duct and can simulate the peristaltic extrusion of the real bile duct, so as to facilitate the demonstration and teaching operations of popular science activities for medical staff and patients in hospitals.

[0005] The present invention adopts the following technical solutions:

[0006] A bile duct auxiliary fluid demonstration device for simulated teaching, comprising a demonstration board 2, a threaded rod 8, a worm gear device, and a positioning and extrusion device; the threaded rod 8 is parallel to the demonstration board 2 and is rotatably connected to the vertical extensions at both ends of the demonstration board 2, the demonstration board 2 is provided with a slide groove 10, the lifting block 9 is embedded in the slide groove 10, and the threaded rod 8 is located on one side of the demonstration board 2, the positioning block 11 is located on the other side of the demonstration board 2, and the width of the positioning block 11 is greater than the width of the slide groove 10; the turbine worm gear device comprises a turbine 7 and a worm 5, the turbine 7 is coaxially fixed with the threaded rod 8, the worm 5 is perpendicular to the threaded rod 8 and fixedly connected to a knob 6; the positioning and extrusion device comprises a lifting block 9 threadedly engaged with the threaded rod 8, the lifting block is connected to a positioning block 11 on the side, and an extrusion device component is provided on the positioning block 11, and the extrusion component can extrude the elastic pipe of the bile duct model that penetrates into the positioning block 11.

[0007] Preferably, the positioning block 11 is open at the top and bottom and closed on all sides; one side of the positioning block 11 is threadedly connected to a bolt 14, and the bolt is connected to the extrusion block 17 through a spring 16; the other side of the positioning block 11 is fixedly connected to a fixing plate 12; the fixing plate 12 and the extrusion block 17 squeeze the elastic pipe of the bile duct model 4.

[0008] Preferably, it also includes a demonstration stand 1, and the demonstration board 2 is fixed on the demonstration stand 1.

[0009] Preferably, the demonstration board 2 is arranged upright, and the positioning block 11 and the worm 5 are arranged horizontally.

[0010] Furthermore, the demonstration stand 1 includes a base and a vertical support plate.

[0011] Preferably, the demonstration board 2 is provided with a slide groove 10 , and the lifting block 9 is embedded in the slide groove 10 , so that: the threaded rod 8 is located on one side of the demonstration board 2 , and the positioning block 11 is located on the other side of the demonstration board 2 .

[0012] Furthermore, the positioning block 11 is in a square shape that is open at the top and bottom and closed on all sides.

[0013] Preferably, the bile duct model 4 and the positioning block 11 are both transparent.

[0014] Furthermore, the height of the bile duct model 4 is flush with the height of the demonstration stent 1 .

[0015] Furthermore, the outer wall of the extrusion block 17 is in the shape of an arc surface.

[0016] Furthermore, it also includes a peristaltic pump and a container; the end and the head end of the elastic pipe of the bile duct model 4 are both extended into the container, and the peristaltic pump drives the colored water to circulate in the elastic pipe.

[0017] The beneficial effects of the present invention are:

[0018] 1) A bile duct auxiliary fluid demonstration device that can simulate real bile duct peristalsis and extrusion is used for scientific popularization.

[0019] 2) The different heights of bile duct peristalsis extrusion can be adjusted according to needs;

[0020] 3) When demonstrating the operation, you only need to adjust the knob and bolt in sequence, which is very convenient to operate;

[0021] 4) The bile duct model and the positioning block are designed to be made of transparent materials, making it easier for the audience to observe.

[0022] 5) The extrusion block is designed with a curved surface to improve the stability and uniformity of the extrusion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the bile duct auxiliary fluid demonstration device for simulation teaching of the present invention;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of the bile duct auxiliary fluid demonstration device for simulation teaching of the present invention in another direction;

[0025] Figure 3 It is a schematic diagram of the connection structure between the worm gear and the threaded rod;

[0026] Figure 4 Schematic diagram of the connection structure between bolts and extrusion blocks.

[0027] Figure 5 It is a schematic diagram of a bile duct auxiliary fluid demonstration device for simulated teaching of the present invention, a peristaltic pump and a beaker being connected to form a circulation flow path.

[0028] In the figure: 1. Demonstration bracket; 2. Demonstration board; 3. Placement block; 4. Biliary tract model; 5. Worm; 6. Knob; 7. Worm gear; 8. Threaded rod; 9. Lifting block; 10. Slide; 11. Positioning block; 12. Fixing plate; 13. Nut; 14. Bolt; 15. Clamping block; 16. Spring; 17. Extrusion block. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] A bile duct auxiliary fluid demonstration device for simulating teaching, such as Figure 1-2 As shown:

[0031] The demonstration bracket 1 includes a demonstration board 2 (such as Figure 3 ).

[0032] Combination Figure 2 A placement block 3 is fixedly connected to the bottom of the demonstration board 2, and a bile duct model 4 is placed inside the placement block 3.

[0033] See also Figure 1 and Figure 3The inner wall of the demonstration board 2 is rotatably connected with a worm 5, one end of the worm 5 is fixedly connected with a knob 6, the outer wall of the worm 5 is meshed with a worm wheel 7 rotatably connected with the inner wall of the demonstration board 2, the rotation center of the worm wheel 7 is fixedly connected with a threaded rod 8 rotatably connected with the inner wall of the demonstration board 2 through a rotating shaft, the outer wall of the threaded rod 8 is threadedly connected with a lifting block 9 slidably connected with the outer wall of the demonstration board 2, and a sliding groove 10 is provided at the connection portion between the demonstration board and the lifting block 9, the outer wall of the lifting block 9 is fixedly connected with a positioning block 11 sleeved on the outer wall of the bile duct model 4, the inner wall of the positioning block 11 is fixedly connected with a fixing plate 12 that fits the outer wall of the bile duct model 4, the side wall of the positioning block 11 is threadedly connected with a nut 13, the inner wall of the nut 13 is threadedly connected with a bolt 14, one end of the bolt 14 is rotatably connected with a clamping block 15, the outer wall of the clamping block 15 is fixedly connected with a spring 16 fixedly connected with the inner side wall of the positioning block 11, and an extrusion block 17 is fixedly connected to the spring 16.

[0034] The rotation center of the worm wheel 7 coincides with the rotation center of the threaded rod 8. The threaded rod 8 forms a rotating structure with the worm 5 and the worm wheel 7 and the demonstration board 2, so that the rotation of the worm 5 can drive the threaded rod 8 to rotate through the connection of the worm wheel 7. Since the positioning block 11 is located on the other side of the demonstration board 2 and its width is greater than the slide groove 10, the positioning block 11 can prevent the lifting block 9 from rotating with the threaded rod 8 after it abuts against the demonstration board 2, thereby forcing the lifting block 9 to perform lifting and lowering movements relative to the threaded rod 8.

[0035] Preferably, the positioning block 11 is open at the top and bottom and closed on all sides; one side of the positioning block 11 is threadedly connected to a bolt 14, and the bolt is connected to the extrusion block 17 through a spring 16; the other side of the positioning block 11 is fixedly connected to a fixing plate 12; the fixing plate 12 and the extrusion block 17 squeeze the elastic pipe of the bile duct model 4.

[0036] In this embodiment, the demonstration board 2 is arranged upright, and the positioning block 11 and the worm 5 are arranged horizontally.

[0037] In this embodiment, see Figure 1 The demonstration bracket 1 includes a base and a vertical support plate.

[0038] In this embodiment, see Figure 3 The demonstration board 2 is provided with a slide groove 10 , and the lifting block 9 is embedded in the slide groove 10 , so that: the threaded rod 8 is located on one side of the demonstration board 2 , and the positioning block 11 is located on the other side of the demonstration board 2 .

[0039] In this embodiment, see Figure 4 The positioning block 11 is in the shape of a square with upper and lower openings and closed all around.

[0040] The bile duct model 4 passes through the central hole of the positioning block 11, and both materials are transparent (for example, the positioning block 11 can be made of a highly transparent organic glass plate, and the bile duct model 4 is made of transparent food-grade silicone), which is convenient for viewers to observe the internal liquid. The height of the bile duct model 4 is flush with the height of the demonstration bracket 1, which is conducive to simulating bile entering the model from the left and right bile ducts, and is convenient for water injection to demonstrate the process of bile flow.

[0041] When in use, the bolt 14 is rotated to drive the squeezing block 17 to move inward, and the arc-shaped outer wall of the squeezing block 17 can squeeze the elastic tube of the bile duct model 4, thereby simulating the scene of bile retention.

[0042] Working principle of the present invention: When using the bile duct auxiliary fluid demonstration device capable of simulating teaching, when the flow in the bile duct is simulated and demonstrated by the demonstration device, see Figure 5 The end and the head of the elastic tube of the bile duct model 4 are both extended into a container (such as a beaker), and driven by a peristaltic pump, the colored water flows in the elastic tube. Since the bile duct model 4 and the positioning block 11 are both transparent, the support plate has a background color, which is conducive to clear observation. Figure 1 , 2 4. In order to improve the effect of the demonstration of flow regulation after blockage occurs at different positions in the bile duct, the knob 6 can be turned according to the needs of the demonstration position to drive the worm wheel 7 to rotate through the rotation of the worm 5. The rotation of the worm wheel 7 drives the lifting block 9 to slide along the inner wall of the slide groove 10 through the rotation of the threaded rod 8. At the same time, the bolt 14 can be rotated through the limiting effect of the nut 13 and the connection with the spring 16 to drive the squeezing block 17 to perform telescopic movement, and under the connection with the clamping block 15, the bile duct is squeezed to achieve the effect of simulating the degree of blockage regulation at different positions in the bile duct, thereby improving the quality of students' learning about the internal flow of the bile duct.

[0043] In summary, the present invention can simulate the bile duct auxiliary fluid demonstration device of real bile duct peristaltic extrusion for popular science explanation; different height positions of bile duct peristaltic extrusion can be adjusted according to needs; when demonstrating the operation, only the knob and the bolt need to be adjusted in sequence, which is very convenient to operate; the bile duct model and the positioning block are designed to be made of transparent material, so that it is more convenient for the audience to observe; the extrusion block is designed with an arc surface to improve the stability and uniformity of the extrusion effect.

[0044] The above are preferred embodiments of the present invention. Those skilled in the art may also make respective changes or improvements thereon. Without departing from the general concept of the present invention, these changes or improvements shall fall within the scope of protection claimed by the present invention.

Claims

1. A bile duct auxiliary fluid demonstration device for simulated teaching, characterized in that: It includes a demonstration board (2), a threaded rod (8), a worm gear device, and a positioning extrusion device; The threaded rod (8) is parallel to the demonstration board (2) and is rotatably connected to the vertical extensions at both ends of the demonstration board (2). The demonstration board (2) is provided with a slide groove (10), the lifting block (9) is embedded in the slide groove (10), and the threaded rod (8) is located on one side of the demonstration board (2), the positioning block (11) is located on the other side of the demonstration board (2), and the width of the positioning block (11) is greater than the width of the slide groove (10); The worm gear device comprises a worm gear (7) and a worm gear (5), wherein the worm gear (7) is coaxially fixed to a threaded rod (8), and the worm gear (5) is perpendicular to the threaded rod (8) and fixedly connected to a knob (6); The positioning and squeezing device comprises a lifting block (9) threadedly engaged with the threaded rod (8), the lifting block being connected to a positioning block (11) on its side, and a squeezing device component being provided on the positioning block (11), the squeezing component being capable of squeezing the elastic conduit of the bile duct model penetrating into the interior of the positioning block (11).

2. The bile duct auxiliary fluid demonstration device for simulated teaching according to claim 1, characterized in that: The positioning block (11) is open at the top and bottom and closed on all sides; One side of the positioning block (11) is threadedly connected to a bolt (14), and the bolt is connected to the extrusion block (17) through a spring (16). The other side of the positioning block (11) is fixedly connected to a fixing plate (12); the fixing plate (12) and the squeezing block (17) squeeze the elastic pipe of the bile duct model (4).

3. The bile duct auxiliary fluid demonstration device for simulated teaching according to claim 1, characterized in that: It also comprises a demonstration bracket (1), and the demonstration board (2) is fixed on the demonstration bracket (1).

4. The bile duct auxiliary fluid demonstration device for simulated teaching according to claim 1, characterized in that: The demonstration board (2) is arranged upright, and the positioning block (11) and the worm (5) are arranged horizontally.

5. The bile duct auxiliary fluid demonstration device for simulated teaching according to claim 3, characterized in that: The demonstration support (1) comprises a base and a vertical support plate.

6. The bile duct auxiliary fluid demonstration device for simulated teaching according to claim 2, characterized in that: The positioning block (11) is in the shape of a square with upper and lower openings open and surrounding parts closed.

7. The bile duct auxiliary fluid demonstration device for simulated teaching according to claim 5, characterized in that: The bile duct model (4) and the positioning block (11) are both transparent, and the support plate has a background color.

8. The bile duct auxiliary fluid demonstration device for simulated teaching as claimed in claim 3, characterized in that: The height of the bile duct model (4) is flush with the height of the demonstration stent (1).

9. The bile duct auxiliary fluid demonstration device for simulated teaching according to claim 2, characterized in that: The outer wall of the extrusion block (17) is in the shape of an arc surface.

10. The bile duct auxiliary fluid demonstration device for simulation teaching according to claim 7, characterized in that: Also included are peristaltic pumps and containers; The end and the head of the elastic tube of the bile duct model (4) are both extended into the container, and the peristaltic pump drives the colored water to circulate in the elastic tube.

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