Modular bionic femoral artery puncture teaching aid

Abstract

The utility model provides a kind of modularization bionic femoral artery puncture teaching aid, including model, simulation blood vessel, circulation pipeline and fixed component, the simulation blood vessel is worn the model, and the both ends of simulation blood vessel are respectively through fixed component and the circulation pipeline detachable connection;The fixed component includes inner tube, fixed pipe, two clamps and two adjusting parts, and the both ends of fixed pipe are respectively with the inner tube and circulation pipeline connection;Two described clamps are around the outer side of the inner tube;The adjusting part is movably arranged on the fixed pipe, and each adjusting part is connected with one clamp;After the end of the simulation blood vessel is inserted with the inner tube, the end of the simulation blood vessel is clamped or loosened by the adjusting part driving the clamp, to realize reliable connection between simulation blood vessel and circulation pipeline.

Description

Technical Field

[0001] This utility model relates to the field of puncture teaching aids, and in particular to a modular bionic femoral artery puncture teaching aid. Background Technology

[0002] Vascular puncture, especially femoral artery puncture, is a crucial fundamental skill in clinical interventional surgery, demanding extremely high accuracy and proficiency. To reduce clinical training risks and improve teaching efficiency, medical simulation teaching aids have been widely used. Existing femoral artery puncture training models typically include a local anatomical model of the human body, an internal simulated blood vessel, and a tubing system simulating blood circulation.

[0003] During use, repeated punctures of the simulated blood vessel with the puncture needle leave multiple needle holes in the vessel wall, causing simulated blood leakage. This makes it impossible to realistically simulate intravascular pressure and affects the observation results. Therefore, the simulated blood vessel is a consumable item and needs to be replaced frequently to ensure that each training session is conducted under realistic conditions.

[0004] Currently, most training aids use straps or simple plugs to secure the simulated blood vessels and circulatory tubing. However, these simple plugs are prone to detachment under the pressure of the circulatory system's pump, leading to fluid leakage, contamination of the aid, and interruption of training. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a modular bionic femoral artery puncture teaching tool that enables a reliable connection between simulated blood vessels and circulatory tubing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A modular biomimetic femoral artery puncture teaching aid includes a model, a simulated blood vessel, a circulatory system, and a fixation component. The simulated blood vessel is inserted through the model, and both ends of the simulated blood vessel are detachably connected to the circulatory system via the fixation component. The fixation component includes: Inner tube; A fixed pipe, the two ends of which are respectively connected to the inner pipe and the circulation pipe; Two clamping plates, the two clamping plates surrounding the outside of the inner tube; Two adjusting members are movably mounted on the fixed tube, and each adjusting member is connected to one of the clamping plates. After the end of the simulated blood vessel is inserted into the inner tube, the clamp is tightened or loosened by the adjusting member.

[0007] In a preferred embodiment, the adjusting member includes: A threaded rod, which is rotatably mounted on the fixed tube; A sliding plate, wherein the sliding plate is threadedly connected to the threaded rod, and the sliding plate is connected to the clamping plate; The fixed tube has a limiting groove, and the slide plate is limited in the limiting groove. When the threaded rod rotates, the slide plate moves along the axial direction of the threaded rod.

[0008] In a preferred embodiment, the outer wall of the sliding plate is fitted with the inner wall of the limiting groove.

[0009] In a preferred embodiment, the fixing tube includes: The inner side plate forms a fixed channel connecting the inner tube and the circulation pipeline; An outer side plate, the outer side plate being located outside the inner side plate, and a limiting groove being formed between the outer side plate and the inner side plate; The inner side plate and the outer side plate are respectively provided with connection holes for threaded connection with the threaded rod. The connection holes on the inner side plate do not penetrate into the fixed channel.

[0010] In a preferred embodiment, the adjusting member further includes: A grip, located on the outside of the fixed tube, is connected to the threaded rod.

[0011] In a preferred embodiment, the inner surface of the clamp is provided with a rubber pad.

[0012] In a preferred embodiment, the circulation pipeline includes: Storage box; Water pump; A water inlet pipe, the two ends of which are connected to the storage tank and the water pump, respectively; A connecting pipe, one end of which is connected to the water pump, and the other end of which is connected to the inlet of the simulated blood vessel via the fixing assembly; The water outlet pipe has one end connected to the outlet end of the simulated blood vessel via the fixing component, and the other end connected to the storage tank.

[0013] In a preferred embodiment, the circulation pipeline further includes: The control tube is equipped with a pressure sensor and a flow regulating valve, and its two ends are respectively connected to the connecting tube and the fixing tube of the fixing assembly.

[0014] In a preferred embodiment, a replenishment pipe is connected to the top of the storage box, and a pipe cap is provided on the top of the replenishment pipe.

[0015] In a preferred embodiment, the simulated blood vessel includes a femoral artery and a femoral vein arranged side by side.

[0016] As a preferred embodiment, it also includes: The base, on which the model and circulation pipeline are fixed, is provided with a control panel and / or indicator lights.

[0017] Compared with existing technologies, this technical solution has the following advantages: During the simulated blood vessel installation phase, the end of the simulated blood vessel is fitted onto the outside of the inner tube, utilizing the elasticity of the simulated blood vessel to achieve an initial fit. Then, the adjusting mechanism drives the clamp to tighten the end of the simulated blood vessel, improving the stability of the connection. During the simulated blood vessel removal phase, the adjusting mechanism drives the clamp to loosen the end of the simulated blood vessel, and then the end of the simulated blood vessel is pulled out of the inner tube, facilitating replacement of the simulated blood vessel while ensuring the stability of the connection between the simulated blood vessel and the circulation pipeline, preventing detachment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the modular bionic femoral artery puncture teaching device described in this utility model; Figure 2 This is a schematic diagram of the structure of the fixing component described in this utility model; Figure 3 This is a schematic diagram of the structure of the model described in this utility model; Figure 4 This is a schematic diagram of the structure of the control tube described in this utility model.

[0019] In the diagram: 100 Model, 200 Simulated Blood Vessel, 210 Arterial Tube, 220 Vein Tube, 300 Circulation Pipeline, 310 Storage Box, 311 Replenishment Tube, 312 Tube Cap, 320 Water Pump, 330 Inlet Pipe, 340 Connecting Pipe, 350 Outlet Pipe, 360 Control Pipe, 361 Pressure Sensor, 362 Flow Control Valve, 400 Fixing Component, 410 Inner Tube, 420 Fixing Tube, 420a Limiting Groove, 420b Fixing Channel, 420c Connecting Hole, 421 Inner Side Plate, 422 Outer Side Plate, 430 Clamping Plate, 431 Rubber Pad, 440 Adjusting Component, 441 Threaded Rod, 442 Slide Plate, 443 Grip, 500 Base, 510 Control Panel, 520 Indicator Light. Detailed Implementation

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0021] Please refer to Figure 1 and Figure 2 This utility model provides a modular bionic femoral artery puncture teaching aid, including a model 100, a simulated blood vessel 200, a circulatory tube 300, and a fixing component 400. The simulated blood vessel 200 passes through the model 100, and both ends of the simulated blood vessel 200 are detachably connected to the circulatory tube 300 via the fixing component 400. The fixing component 400 includes: Inner tube 410; A fixed tube 420, the two ends of which are respectively connected to the inner tube 410 and the circulation pipe 300; Two clamping plates 430 surround the outer side of the inner tube 410; Two adjusting members 440 are movably mounted on the fixed tube 420, and each adjusting member 440 is connected to one of the clamping plates 430. After the end of the simulated blood vessel 200 is inserted into the inner tube 410, the clamping plate 430 is driven by the adjusting member 440 to clamp or loosen the end of the simulated blood vessel 200.

[0022] During the installation phase of the simulated blood vessel 200, the end of the simulated blood vessel 200 is fitted onto the outside of the inner tube 410, utilizing the elasticity of the simulated blood vessel 200 to achieve initial adhesion. Then, the adjusting member 440 drives the clamping plate 430 to clamp the end of the simulated blood vessel 200, improving the stability of the connection. During the disassembly phase of the simulated blood vessel 200, the adjusting member 440 drives the clamping plate 430 to loosen the end of the simulated blood vessel 200, and then the end of the simulated blood vessel 200 is pulled out from the inner tube 410, facilitating the replacement of the simulated blood vessel 200 while ensuring the stability of the connection between the simulated blood vessel 200 and the circulation pipeline 300, preventing detachment.

[0023] like Figure 1 and Figure 3 As shown, the simulated blood vessel 200 is disposed through the interior of the model 100, simulating the anatomical location of human blood vessels. The model 100 is provided with simulated skin and simulated subcutaneous tissue, which can be removed to facilitate the replacement of the simulated blood vessel 200 on the model 100.

[0024] refer to Figure 3 The simulated blood vessel 200 has an inlet and an outlet at its two ends, which extend to the outside of the model 100 for connecting to the fixing component 400.

[0025] like Figure 1 and Figure 2 As shown, the fixing assembly 400 includes an inner tube 410, a fixing tube 420, two clamps 430, and two adjusting members 440. The two ends of the fixing tube 420 are respectively connected to the circulation pipeline 300 and the inner tube 410. Both the inner tube 410 and the fixing tube 420 are hollow structures, and their interiors are connected. After the inner tube 410 is connected to the simulated blood vessel 200, the simulated blood vessel 200 is connected to the circulation pipeline 300.

[0026] refer to Figure 2 The inner tube 410 is annular, and the simulated blood vessel 200 is sleeved on the outside of the inner tube 410 to achieve insertion between the two. The inner tube 410 has a higher hardness than the simulated blood vessel 200. This higher hardness allows the inner tube 410 to cooperate with the clamping plate 430, simultaneously clamping the end of the simulated blood vessel 200 and ensuring a stable connection between the end of the simulated blood vessel 200 and the inner tube 410.

[0027] The clamping plate 430 is arc-shaped to accommodate and hold the end of the simulated blood vessel 200, which has an annular cross-section. Two clamping plates 430 surround the outside of the simulated blood vessel 200, and under the action of the adjusting member 440, the two clamping plates 430 clamp or release the end of the simulated blood vessel 200.

[0028] Each of the clamps 430 has a rubber pad 431 on its inner surface.

[0029] like Figure 2 As shown, the adjusting member 440 is movably mounted on the fixed tube 420, and each adjusting member 440 is connected to a clamping plate 430; after the end of the simulated blood vessel 200 is inserted into the inner tube 410, the adjusting member 440 drives the clamping plate 430 to clamp or loosen the end of the simulated blood vessel 200.

[0030] The adjusting member 440 includes: A threaded rod 441 is rotatably mounted on the fixed tube 420; Slide plate 442 is threadedly connected to threaded rod 441 and is also connected to clamping plate 430; The fixed tube 420 has a limiting groove 420a, and the slide plate 442 is limited in the limiting groove 420a. When the threaded rod 441 rotates, the slide plate 442 moves along the axial direction of the threaded rod 441.

[0031] The two ends of the threaded rod 441 are fixed relative to each other, while the sliding plate 442 is restricted and installed in the limiting groove 420a. Therefore, after the threaded rod 441 is rotated, the sliding plate 442 moves along the axial direction of the threaded rod 441, thereby driving the clamping plate 430 to move circumferentially along the threaded rod 441.

[0032] The two threaded rods 441 are coaxially arranged, meaning that when the two clamping plates 430 move inward along the axial direction of the threaded rods 441, they can clamp the end of the simulated blood vessel 200. When the two clamping plates 430 move outward along the axial direction of the threaded rods 441, they can release the end of the simulated blood vessel 200.

[0033] The limiting groove 420a is adapted to the shape of the sliding plate 442. For example, the cross-section of the limiting groove 420a is oriented in a certain direction, and the shape of the sliding plate 422 is oriented in a certain direction. At the same time, the outer wall of the sliding plate 442 fits against the inner wall of the limiting groove 420a to ensure that the sliding plate 442 moves along the axial direction of the threaded rod 441 without rotating.

[0034] refer to Figure 2 The fixing tube 420 includes: The inner side plate 421 forms a fixed channel 420b that connects the inner tube 410 and the circulation pipeline 300.

[0035] An outer side plate 422 is located outside the inner side plate 421, and a limiting groove 420a is formed between the outer side plate 422 and the inner side plate 421. The inner side plate 421 and the outer side plate 422 are respectively provided with connection holes 420c that are threaded to the threaded rod 441. The connection hole 420c on the inner side plate 421 does not penetrate into the fixed channel 420b.

[0036] The inner end of the threaded rod 441 is inserted into the connecting hole 420c of the inner side plate 421, and the connecting hole 420c on the inner side plate 421 does not penetrate into the fixed channel 420b to prevent leakage. The outer end of the threaded rod 441 is inserted into the connecting hole 420c of the outer side plate 422 to achieve a rotatable connection between the threaded rod 441 and the fixed tube 420. It should be noted that the threaded rod 441 and the connecting hole 420c are rotatably connected, rather than threaded, to prevent the threaded rod 441 from moving up and down on the fixed tube 420. In this embodiment, the threaded rod 441 rotates in both directions relative to the fixed tube 420 to allow the slide plate 442, which is constrained by the limiting groove 420a, to move up and down along the axial direction of the threaded rod 441.

[0037] The adjusting member 440 further includes: A grip 443 is located on the outside of the fixed tube 420 and is connected to the threaded rod 441.

[0038] The outer end of the threaded rod 441 extends to the outside of the fixed tube 420 and is connected to the handle 443 so that the threaded rod 441 can be rotated by rotating the handle 443.

[0039] like Figure 1 As shown, the circulation pipeline 300 includes: Storage box 310; Water pump 320; Water inlet pipe 330, the two ends of which are respectively connected to the storage tank 310 and the water pump 320; A connecting pipe 340, one end of which is connected to the water pump 320, and the other end of which is connected to the inlet end of the simulated blood vessel 200 through the fixing assembly 400; The water outlet pipe 350 has one end connected to the outlet end of the simulated blood vessel 200 via the fixing component 400, and the other end connected to the storage box 310.

[0040] The storage tank 310 contains red simulated blood. The water pump 320 draws simulated blood from the storage tank 310 through the inlet pipe 330, and delivers it to the fixing pipe 420 of the fixing component 400 via the connecting pipe 340. After the end of the simulated blood vessel 200 is connected to the inner pipe 410 of the fixing component 400, the simulated blood enters the simulated blood vessel 200 through the inner pipe 410. The simulated blood in the simulated blood vessel 200 then flows through the fixing component 400 connected to its outlet port to the outlet pipe 350, which returns the simulated blood to the storage tank 310, forming a closed loop.

[0041] The top of the storage tank 310 is connected to a replenishment tube 311, and the top of the replenishment tube 311 is provided with a tube cap 312. After removing the tube cap 312, simulated blood is replenished to the storage tank 310 through the replenishment tube 311.

[0042] like Figure 1 and Figure 4 As shown, the circulation pipeline 300 further includes: The control tube 360 ​​is equipped with a pressure sensor 361 and a flow regulating valve 362. The two ends of the control tube 360 ​​are respectively connected to the connecting tube 340 and the fixing tube 420 of the fixing assembly 400.

[0043] The control tube 360 ​​integrates a pressure sensor 361 on its inner wall and a flow regulating valve 362 on its outer wall, which can monitor the system pressure in real time and accurately adjust the blood flow rate and pulsation amplitude.

[0044] The simulated blood vessel 200 is divided into a femoral artery tube 210 and a femoral vein tube 220 arranged side by side.

[0045] like Figure 1 As shown, the modular bionic femoral artery puncture teaching aid also includes: The base 500, the model 100 and the circulation pipeline 300 are fixed on the base 500, and the base 500 is provided with a control panel 510 and / or an indicator light 520.

[0046] The storage tank 310 and water pump 320 of the circulation pipeline 300 are fixed on the base 500. The control panel 510 is used to adjust parameters such as the frequency of the water pump 320 and the opening degree of the flow regulating valve 362. The indicator light 520 includes a red light and a blue light, which correspond to the successful puncture indication of the femoral artery tube 210 and the femoral vein tube 220, respectively.

[0047] When in use, the operator starts the water pump 320 to simulate blood entering the inlet pipe 330, and then entering the femoral artery pipe 210 and femoral vein pipe 220 through the connecting pipe 340, providing adjustable pulsating pressure to simulate different heart rate and blood pressure states. The flow regulating valve 362 is used to precisely control the blood flow speed and pulsation, and the pressure sensor 361 is used to monitor the system pressure in real time to ensure stable output.

[0048] During the puncture, the staff uses a standard puncture needle to insert into the model 100 at a 45° angle. If simulated blood flows out, the puncture is successful. At this time, the pressure sensor 361 alarms. If the puncture is inserted into the femoral artery tube 210, the indicator light 520 will light up red. If the puncture is inserted into the femoral vein tube 220, the indicator light 520 will light up blue, and the training is complete.

[0049] During replacement, the staff removes the simulated skin and simulated subcutaneous tissue from the model 100, and then rotates the handle 443 in the forward direction to drive the threaded rod 441 to rotate, so that the clamp 430 moves away from and loosens the end of the simulated blood vessel 200. At this time, the staff can remove the simulated blood vessel 200 from the inner tube 410 to replace it with a new simulated blood vessel 200.

[0050] During installation, the end of the new simulated blood vessel 200 is fitted onto the inner tube 410. Then, the operator rotates the handle 443 in the opposite direction, causing the clamp 430 to approach and hold the end of the simulated blood vessel 200. Finally, the operator reattaches the simulated skin and simulated subcutaneous tissue.

[0051] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The scope of patent application of this utility model should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in this utility model still fall within the patent scope of this utility model.

Claims

1. A modular bionic femoral artery puncture teaching aid, characterized in that, The system includes a model (100), a simulated blood vessel (200), a circulatory system (300), and a fixing component (400). The simulated blood vessel (200) passes through the model (100), and both ends of the simulated blood vessel (200) are detachably connected to the circulatory system (300) via the fixing component (400). The fixing component (400) includes: Inner tube (410); A fixed tube (420) is provided, with its two ends connected to the inner tube (410) and the circulation pipe (300) respectively. Two clamping plates (430) surround the outside of the inner tube (410); Two adjusting members (440) are movably mounted on the fixed tube (420), and each adjusting member (440) is connected to one of the clamping plates (430); After the end of the simulated blood vessel (200) is inserted into the inner tube (410), the clamp (430) is driven by the adjusting member (440) to clamp or loosen the end of the simulated blood vessel (200).

2. The modular bionic femoral artery puncture teaching aid as described in claim 1, characterized in that, The adjusting member (440) includes: A threaded rod (441) is rotatably mounted on the fixed tube (420); A sliding plate (442) is threadedly connected to the threaded rod (441) and the sliding plate (442) is connected to the clamping plate (430); The fixed tube (420) has a limiting groove (420a), and the sliding plate (442) is limited in the limiting groove (420a). When the threaded rod (441) rotates, the sliding plate (442) moves along the axial direction of the threaded rod (441).

3. The modular bionic femoral artery puncture teaching device as described in claim 2, characterized in that, The fixed tube (420) includes: The inner side plate (421) forms a fixed channel (420b) that connects the inner tube (410) and the circulation pipeline (300). An outer side plate (422) is located outside the inner side plate (421), and a limiting groove (420a) is formed between the outer side plate (422) and the inner side plate (421). The inner side plate (421) and the outer side plate (422) are respectively provided with connection holes (420c) that are threaded to the threaded rod (441). The connection holes (420c) on the inner side plate (421) do not penetrate into the fixed channel (420b).

4. The modular bionic femoral artery puncture teaching aid as described in claim 2, characterized in that, The adjusting member (440) further includes: A grip (443) is located on the outside of the fixed tube (420) and is connected to the threaded rod (441).

5. The modular bionic femoral artery puncture teaching device as described in claim 1, characterized in that, The inner surface of the clamp (430) is provided with a rubber pad (431).

6. The modular bionic femoral artery puncture teaching device as described in claim 1, characterized in that, The circulation pipeline (300) includes: Storage box (310); Water pump (320); A water inlet pipe (330) is provided, with its two ends connected to the storage tank (310) and the water pump (320) respectively. A connecting pipe (340) is provided, one end of which is connected to the water pump (320), and the other end of which is connected to the inlet end of the simulated blood vessel (200) through the fixing assembly (400). The water outlet pipe (350) has one end connected to the outlet end of the simulated blood vessel (200) via the fixing component (400), and the other end connected to the storage tank (310).

7. The modular bionic femoral artery puncture teaching aid as described in claim 6, characterized in that, The circulation pipeline (300) also includes: The control tube (360) is equipped with a pressure sensor (361) and a flow regulating valve (362). The two ends of the control tube (360) are respectively connected to the connecting tube (340) and the fixing tube (420) of the fixing assembly (400).

8. The modular bionic femoral artery puncture teaching device as described in claim 6, characterized in that, The top of the storage box (310) is connected to a replenishment tube (311), and the top of the replenishment tube (311) is provided with a tube cap (312).

9. The modular bionic femoral artery puncture teaching device as described in claim 1, characterized in that, The simulated blood vessel (200) is divided into a femoral artery (210) and a femoral vein (220) arranged side by side.

10. The modular bionic femoral artery puncture teaching device as described in claim 1, characterized in that, Also includes: The base (500), the model (100) and the circulation pipeline (300) are fixed on the base (500), and the base (500) is provided with a control panel (510) and / or indicator lights (520).

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