Pressure-adjustable internal arteriovenous fistula simulation device

Abstract

The utility model relates to the technical field of internal arteriovenous fistula simulation, and discloses a pressure-adjustable internal arteriovenous fistula simulation device which comprises a pressure adjusting device, a control panel is installed at the top end of the pressure adjusting device, an adjusting column is fixedly connected to one side of the pressure adjusting device, a rotating column is rotatably connected to the interior of the adjusting column, and a pressure sensor is installed on the rotating column. And a connecting column is arranged in the rotating column, and an internal venous fistula simulation device body is installed on one side of the connecting column. According to the pressure-adjustable internal arteriovenous fistula simulation device, a worker rotates a rotating column, so that the rotating column drives an adjusting block and an inserting rod to move, the top of the adjusting block is in contact with the thicker end of an arc block, meanwhile, the adjusting block moves towards one side of a connecting column, the inserting rod is driven to be inserted into an inserting hole to be fixed, and the position of the connecting column is limited; and a worker can conveniently connect and fasten the connecting column, so that the worker can conveniently replace the intravenous fistula simulation device body according to a simulation environment.

Description

Technical Field

[0001] This utility model relates to the field of arteriovenous fistula simulation technology, and in particular to an adjustable pressure arteriovenous fistula simulation device. Background Technology

[0002] In the field of medical device technology, arteriovenous fistula (AVF) simulators are crucial for training healthcare professionals. However, existing AVF simulators have some limitations in design and function, particularly in pressure regulation.

[0003] Most arteriovenous fistula (AVF) simulation devices currently on the market can only provide a fixed simulation environment and cannot precisely adjust the pressure according to actual needs. These devices usually do not have an adjustable pressure system, or their pressure adjustment device is fixedly connected to the simulation device itself, making it impossible to achieve convenient connection and replacement. This design deficiency limits the application of simulation devices in various scenarios, especially when it is necessary to simulate AVF under different pressure environments. Utility Model Content

[0004] The technical problem to be solved by this invention is that the existing technology has the disadvantage of not being able to quickly connect the pressure regulating device and the simulation device. To address this, we propose an adjustable pressure arteriovenous fistula simulation device.

[0005] To achieve the above objectives, this application adopts the following technical solution: an adjustable pressure arteriovenous fistula simulation device, comprising a pressure regulating device, a control panel mounted on the top of the pressure regulating device, an adjusting column fixedly connected to one side of the pressure regulating device, a rotating column rotatably connected inside the adjusting column, a connecting column provided inside the rotating column, a body of the arteriovenous fistula simulation device mounted on one side of the connecting column, adjusting grooves provided at both ends of the rotating column, adjusting blocks slidably connected inside the adjusting grooves, a plug rod fixedly connected to the side of the adjusting block near the inside of the adjusting groove, arc blocks fixedly connected to both ends of the inner wall of the adjusting column, a through hole provided inside the adjusting groove on the side away from the arc blocks, and insertion holes provided at both ends of the connecting column.

[0006] Preferably, a sealing gasket is installed inside the adjusting column on the side near the rotating column.

[0007] Preferably, both ends of the adjustment groove are provided with sliding grooves, and both ends of the adjustment block are fixedly connected with sliders, the surface of the sliders being slidably connected to the inside of the sliding grooves.

[0008] Preferably, the size of the insertion rod is adapted to the size of the insertion hole, and the surface of the insertion rod is inserted into the interior of the insertion hole.

[0009] Preferably, both ends of the rotating column are provided with threaded grooves, and both ends of the adjusting column are provided with threaded rods.

[0010] Preferably, a storage spring is fixedly connected to the side of the adjusting block near the insertion rod, and the side of the storage spring away from the adjusting block is fixedly connected to the inside of the adjusting groove.

[0011] Preferably, the inner wall of the adjusting column is provided with two annular grooves, and two annular blocks are fixedly connected to the surface of the rotating column, with the surface of the annular blocks slidingly connected to the interior of the annular grooves.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, the operator rotates the rotating column, causing the adjusting block and the insertion rod to move. The top of the adjusting block contacts the thicker end of the arc block, while the adjusting block moves to one side of the connecting column, causing the insertion rod to be inserted into the insertion hole for fixation. This also limits the position of the connecting column. Through the above settings, the operator can connect and tighten the connecting column, allowing the operator to replace the main body of the venous fistula simulation device according to the simulated environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the partially exploded structure of the adjusting column of this utility model;

[0016] Figure 3 This is a schematic diagram of a partial explosion structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the internal structure of the adjusting column of this utility model;

[0018] Figure 5 This is a schematic diagram of the connecting column structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the rotating column structure of this utility model.

[0020] Legend: 1. Pressure regulating device; 2. Control panel; 3. Adjusting column; 4. Rotating column; 5. Connecting column; 6. Main body of the venous fistula simulation device; 7. Adjusting groove; 8. Adjusting block; 9. Insertion rod; 10. Arc block; 11. Through hole; 12. Insertion hole; 13. Sealing gasket; 14. Slide groove; 15. Sliding block; 16. Threaded groove; 17. Threaded rod; 18. Storage spring; 19. Ring groove; 20. Ring block. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Reference Figure 1 - Figure 6 As shown, this utility model provides a technical solution: an adjustable pressure arteriovenous fistula simulation device, including a pressure regulating device 1, a control panel 2 installed at the top of the pressure regulating device 1, an adjusting column 3 fixedly connected to one side of the pressure regulating device 1, a rotating column 4 rotatably connected inside the adjusting column 3, a connecting column 5 provided inside the rotating column 4, an arteriovenous fistula simulation device body 6 installed on one side of the connecting column 5, adjusting grooves 7 opened at both ends of the rotating column 4, adjusting blocks 8 slidably connected inside the adjusting grooves 7, and an insertion rod 9 fixedly connected to the side of the adjusting block 8 near the inside of the adjusting groove 7. Both ends of the inner wall of the adjusting column 3 are fixedly connected to... An arc block 10 is connected to the connecting post 5. A through hole 11 is provided on the side of the adjusting groove 7 away from the arc block 10. Insertion holes 12 are provided at both ends of the connecting post 5. When the operator rotates the rotating post 4, the rotating post 4 moves the adjusting block 8 and the insertion rod 9, and the top of the adjusting block 8 contacts the thicker end of the arc block 10. At the same time, the adjusting block 8 moves to one side of the connecting post 5, and the insertion rod 9 is inserted into the insertion hole 12 for fixation, and the position of the connecting post 5 is limited. Through the above settings, the operator can connect and tighten the connecting post 5, so that the operator can replace the main body 6 of the venous fistula simulation device according to the simulated environment.

[0023] Reference Figure 3 As shown in this embodiment: a sealing gasket 13 is installed inside the adjusting column 3 on the side near the rotating column 4. By installing the sealing gasket 13 inside the adjusting column 3 on the side near the rotating column 4, a sealing gasket 13 is added to the inner side of the adjusting column 3 near the rotating column 4. This structure ensures the sealing of the gas, enhances the overall sealing effect of the device, effectively prevents gas leakage, and improves the safety of equipment operation.

[0024] Reference Figure 3 and Figure 6 As shown in this embodiment: both ends of the adjusting groove 7 are provided with sliding grooves 14, and both ends of the adjusting block 8 are fixedly connected with sliders 15. The surface of the sliders 15 is slidably connected to the inside of the sliding grooves 14. When the operator moves the adjusting block 8, the adjusting block 8 drives the sliders 15 to slide inside the sliding grooves 14. Through the above settings, precise control of the rotating column 4 is achieved. In addition, the sliding connection design between the sliders 15 and the sliding grooves 14 not only ensures the flexibility of operation, but also reduces wear caused by friction, extends the service life of the equipment, and ensures the stability and guidance of the adjusting block 8 in the adjusting groove 7, thereby improving the operating accuracy and reliability of the entire device.

[0025] Reference Figure 3 - Figure 6 As shown, in this embodiment, the size of the insertion rod 9 is adapted to the size of the insertion hole 12, and the surface of the insertion rod 9 is inserted into the interior of the insertion hole 12. By adapting the size of the insertion rod 9 to the size of the insertion hole 12, the insertion rod 9 can be tightly inserted into the interior of the insertion hole 12, thereby forming a stable connection. This design not only improves the bonding strength between components, but also ensures that the components will not loosen during operation, thus guaranteeing the stability and reliability of the device.

[0026] Reference Figure 3 and Figure 4 As shown in this embodiment: threaded grooves 16 are provided at both ends of the rotating column 4, and threaded rods 17 are provided at both ends of the adjusting column 3. In order to make the contact between the arc block 10 and the adjusting block 8 more stable, the operator inserts the threaded rod 17 into the energy storage spring 18 to fix the position of the rotating column 4 and prevent the adjusting block 8 from moving and causing unstable contact between it and the arc block 10.

[0027] Reference Figure 3 As shown in this embodiment: a storage spring 18 is fixedly connected to the side of the adjusting block 8 near the insertion rod 9, and the side of the storage spring 18 away from the adjusting block 8 is fixedly connected to the inside of the adjusting groove 7. When the top of the adjusting block 8 contacts the thicker end of the arc block 10, the adjusting block 8 compresses the storage spring 18 to store force, and causes the insertion rod 9 to be inserted into the insertion hole 12 for fixation. When the operator releases the contact between the arc block 10 and the adjusting block 8, the storage spring 18 quickly rebounds and drives the insertion rod 9 to release the limit between it and the insertion hole 12, so that the operator can install and disassemble the connecting column 5.

[0028] Reference Figure 3 and Figure 4 As shown in this embodiment: the inner wall of the adjusting column 3 is provided with two annular grooves 19, and two annular blocks 20 are fixedly connected to the surface of the rotating column 4. The surface of the annular blocks 20 is slidably connected to the inside of the annular grooves 19. When the operator rotates the rotating column 4, the rotating column 4 drives the annular blocks 20 to slide inside the annular grooves 19. Through the above setting, in addition, the implementation of the sliding connection helps to stabilize the rotation of the rotating column 4, ensuring that the movement of the annular blocks 20 in the annular grooves 19 is smoother and more precise. This structure not only optimizes the operating efficiency of the device, but also improves the operational safety. The precise fit reduces vibration and noise, and also means reduced component wear and extended maintenance cycle.

[0029] Working principle: The operator rotates the rotating column 4, causing the adjusting block 8 and the insertion rod 9 to move. The top of the adjusting block 8 contacts the thicker end of the arc block 10, while the adjusting block 8 moves towards the connecting column 5, causing the insertion rod 9 to be inserted into the insertion hole 12 for fixation. This also limits the position of the connecting column 5. This setup allows the operator to secure the connecting column 5, enabling the replacement of the venous fistula simulation device body 6 according to the simulated environment. The adjusting column 3 has a sealing gasket 13 installed inside near the rotating column 4, ensuring gas tightness. The sealing enhances the overall sealing effect of the device, effectively preventing gas leakage and improving the safety of equipment operation. When the operator moves the adjusting block 8, the adjusting block 8 drives the slider 15 to slide inside the slide groove 14. Through the above settings, precise control of the rotating column 4 is achieved. In addition, the sliding connection design between the slider 15 and the slide groove 14 not only ensures the flexibility of operation but also reduces wear caused by friction, extending the service life of the equipment. It ensures the stability and guidance of the adjusting block 8 in the adjusting groove 7, thereby improving the operating accuracy and reliability of the entire device. By matching the size of the insertion rod 9 with the size of the insertion hole 12, the insertion rod... 9 can be tightly inserted into the socket 12, thus forming a stable connection. This design not only improves the bonding strength between components but also ensures that the components will not loosen during operation, guaranteeing the stability and reliability of the device. To make the contact between the arc block 10 and the adjusting block 8 more stable, the operator inserts the threaded rod 17 into the storage spring 18 to fix the position of the rotating column 4, preventing the adjusting block 8 from moving and causing unstable contact with the arc block 10. When the top of the adjusting block 8 contacts the thicker end of the arc block 10, the adjusting block 8 compresses the storage spring 18 to store force, causing the rod 9 to be inserted into the socket 12 for fixation. When the operator releases the contact between the arc block 10 and the adjusting block 8, the storage spring 18 quickly rebounds and drives the insertion rod 9 to release the limit between it and the insertion hole 12, so that the operator can install and remove the connecting column 5. When the operator rotates the rotating column 4, the rotating column 4 drives the ring block 20 to slide inside the ring groove 19. Through the above settings, the implementation of the sliding connection helps to stabilize the rotation of the rotating column 4 and ensures that the movement of the ring block 20 in the ring groove 19 is smoother and more precise. This structure not only optimizes the operating efficiency of the device, but also improves the operational safety. The precise fit reduces vibration and noise, and also means reduced component wear and extended maintenance cycle.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable pressure arteriovenous fistula simulation device, comprising a pressure regulating device (1), characterized in that: The pressure regulating device (1) is equipped with a control panel (2) at its top. An adjusting column (3) is fixedly connected to one side of the pressure regulating device (1). A rotating column (4) is rotatably connected inside the adjusting column (3). A connecting column (5) is provided inside the rotating column (4). A venous fistula simulation device body (6) is installed on one side of the connecting column (5). Adjusting grooves (7) are provided at both ends of the rotating column (4). An adjusting block (8) is slidably connected inside the adjusting groove (7). An insert rod (9) is fixedly connected to the side of the adjusting block (8) near the inside of the adjusting groove (7). Arc blocks (10) are fixedly connected to both ends of the inner wall of the adjusting column (3). A through hole (11) is provided on the side of the adjusting groove (7) away from the arc block (10). Insert holes (12) are provided at both ends of the connecting column (5).

2. The adjustable pressure arteriovenous fistula simulation device according to claim 1, characterized in that: A sealing gasket (13) is installed inside the adjusting column (3) on the side near the rotating column (4).

3. The adjustable pressure arteriovenous fistula simulation device according to claim 1, characterized in that: The adjustment groove (7) has sliding grooves (14) at both ends, and the adjustment block (8) has sliders (15) fixedly connected to both ends. The surface of the slider (15) is slidably connected to the inside of the sliding groove (14).

4. The adjustable pressure arteriovenous fistula simulation device according to claim 1, characterized in that: The size of the insertion rod (9) is adapted to the size of the insertion hole (12), and the surface of the insertion rod (9) is inserted into the interior of the insertion hole (12).

5. The adjustable pressure arteriovenous fistula simulation device according to claim 1, characterized in that: Both ends of the rotating column (4) are provided with threaded grooves (16), and both ends of the adjusting column (3) are provided with threaded rods (17).

6. The adjustable pressure arteriovenous fistula simulation device according to claim 1, characterized in that: A storage spring (18) is fixedly connected to the side of the adjusting block (8) near the insert rod (9), and the side of the storage spring (18) away from the adjusting block (8) is fixedly connected to the inside of the adjusting groove (7).

7. The adjustable pressure arteriovenous fistula simulation device according to claim 1, characterized in that: The inner wall of the adjusting column (3) is provided with two annular grooves (19), and two annular blocks (20) are fixedly connected to the surface of the rotating column (4). The surface of the annular blocks (20) is slidably connected to the inside of the annular grooves (19).

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