Model teaching aid for simulating intracranial aneurysm

Abstract

The utility model discloses a model teaching aid for simulating intracranial aneurysm, which comprises a Willis ring, a traffic artery body, two side cerebral anterior artery initial segments, two side internal carotid artery tail segments, two side posterior traffic artery bodies and two side cerebral posterior artery initial segments, a subarachnoid cavity is arranged on the outer side of a brain tissue body, and the subarachnoid cavity is communicated with the subarachnoid cavity. A brain shell is arranged on the outer side of the subarachnoid cavity, a second demonstration lamp bead is arranged at the subarachnoid cavity, a set of arc supports are arranged at the Willis ring, each arc support is provided with a set of third demonstration lamp beads, a pair of outlet supports are arranged on the outermost arc support, and a pair of third demonstration lamp beads are arranged on the outlet supports. The outer ends of the two outlet supports and between the two outlet supports are connected with a group of connecting supports which are guided to the lower cavity of the arachnoid, and the two outlet supports and the connecting supports are respectively provided with a group of fourth demonstration lamp beads. The device can provide a detailed simulation process from intracranial aneurysm formation to rupture to subarachnoid hemorrhage, and is worthy of popularization and application.

Description

Technical Field

[0001] The utility model relates to a teaching aid, in particular to a model teaching aid for simulating intracranial aneurysms. Background Art

[0002] An aneurysm is a manifestation of local or diffuse dilation or bulging of the arterial wall due to lesions or injuries of the arterial wall. It is mainly manifested as a pulsating mass and can occur in any part of the arterial system, with the main arteries of the limbs, aorta, and carotid arteries being more common. Intracranial aneurysms have attracted great attention from medical workers because they are not easily observable in the brain. Due to the high mortality rate of intracranial aneurysms, it has always been a difficulty that medical workers urgently need to overcome. However, the traditional explanation of intracranial aneurysms is very abstract. Especially after the rupture of an intracranial aneurysm, the blood flows into the subarachnoid cavity, causing subarachnoid hemorrhage, which has always been a difficult point in the explanation. Due to the complex brain structure in the skull, traditional medical teaching aids have been unable to clearly and vividly explain it intuitively, and there is no corresponding teaching aid that can clarify it. Based on this, the applicant has developed a teaching aid for the detailed simulation process of the formation, rupture, and subarachnoid hemorrhage of intracranial aneurysms. Summary of the Utility Model

[0003] The utility model aims to solve the above-mentioned disadvantages of the prior art and provides a model teaching aid for simulating intracranial aneurysms, which is a teaching aid for the detailed simulation process of the formation, rupture, and subarachnoid hemorrhage of intracranial aneurysms, meeting the needs of medical workers to understand in detail the formation, rupture, and subarachnoid hemorrhage of intracranial aneurysms.

[0004] The technical solution adopted by the present utility model to solve its technical problems: This model teaching aid for simulating intracranial aneurysms includes the Willis circle, which is formed by anastomosing the anterior communicating artery body, the initial segments of the bilateral anterior cerebral arteries, the terminal segments of the bilateral internal carotid arteries, the bilateral posterior communicating artery bodies, and the initial segments of the bilateral posterior cerebral arteries. A group of first demonstration lamp beads are installed on each of the communicating artery body, the initial segments of the bilateral anterior cerebral arteries, the terminal segments of the bilateral internal carotid arteries, the bilateral posterior communicating artery bodies, and the initial segments of the bilateral posterior cerebral arteries. The Willis circle is filled with a cerebral tissue body, and an arachnoid subarachnoid cavity is provided on the outer side of the cerebral tissue body. A group of second demonstration lamp beads are installed at the arachnoid subarachnoid cavity. A group of arc brackets that gradually diverge outward are provided at the Willis circle, and a group of third demonstration lamp beads evenly distributed along the arc direction are installed on each arc bracket. A pair of outlet brackets arranged with the outer side larger and the inner side smaller are provided on the outermost arc bracket. A group of connecting brackets leading to the arachnoid subarachnoid cavity are connected between the outer ends of the two outlet brackets and between the two outlet brackets. A group of fourth demonstration lamp beads are installed on each of the two outlet brackets and each connecting bracket. Here, the Willis circle, also known as the cerebral arterial circle, is a ring-shaped structure located below the base of the brain and above the sella turcica, which is formed by anastomosing the anterior communicating artery, the initial segments of the bilateral anterior cerebral arteries, the terminal segments of the bilateral internal carotid arteries, the bilateral posterior communicating arteries, and the initial segments of the bilateral posterior cerebral arteries. Under normal circumstances, the blood on both sides does not mix in this ring-shaped structure. However, when a certain blood supply artery is stenosed or occluded, the blood can be redistributed and compensated through the cerebral arterial circle to maintain the blood supply to the brain. The Willis circle not only serves as a potential device for compensation under normal circumstances but also provides an alternative perfusion pathway under pathological conditions to maintain the nutrition and functional activities of the brain. In addition, the Willis circle anastomoses the internal carotid artery and the vertebrobasilar artery, is an important structure for establishing collateral circulation in the brain, and also connects the left and right cerebral hemispheres. The function of each of the first demonstration lamp beads here is to simulate and demonstrate the blood flow direction within the Willis circle. The function of a group of arc brackets that gradually diverge outward here is to simulate an aneurysm. The function of the third demonstration lamp beads here is to simulate the demonstration process of the gradual formation of an aneurysm. The functions of the outlet brackets, the connecting brackets, and the fourth demonstration lamp beads here are to simulate the demonstration process of the rupture after the aneurysm develops to a certain extent and to demonstrate the process of blood flowing into the arachnoid subarachnoid cavity after the rupture. The function of the second demonstration lamp beads here is to demonstrate the process when the arachnoid subarachnoid cavity bleeds.

[0005] For further improvement, a pier is provided below the brain shell, and a support column is installed between the brain shell and the pier. The functions of the pier and the support column here are to enable the demonstration area to be placed flat on the table without the need to place the model teaching aid on a specific support tool.

[0006] For further improvement, rubber pads are installed at the four corners of the bottom of the pier. The function of the rubber pads here is to make the pier more stable.

[0007] For further improvement, different color LED light-emitting bodies are respectively used between each first demonstration lamp bead, each second demonstration lamp bead, each third demonstration lamp bead, and each fourth demonstration lamp bead. The function of setting different color LED light-emitting bodies between each first demonstration lamp bead, each second demonstration lamp bead, each third demonstration lamp bead, and each fourth demonstration lamp bead here is to be able to more intuitively demonstrate the relationship between each step, and observe more directly and understand more easily.

[0008] For further improvement, a start switch, an end switch, and a screen for explaining each step are installed at the top of the pier, and a single-chip microcomputer controller is installed inside the pier. The single-chip microcomputer controller is connected by wires to the start switch, the end switch, the screen, each first demonstration lamp bead, each second demonstration lamp bead, each third demonstration lamp bead, and each fourth demonstration lamp bead. Here, the single-chip microcomputer controller can control the screen to display corresponding content according to the steps, start the model teaching aid through the start switch, and close the model teaching aid through the end switch; here, the single-chip microcomputer controller is a commercially available product, and products of companies such as Freescale, Renesas Electronics, Infineon, and Toshiba can be selected.

[0009] The beneficial effects of the present utility model are:

[0010] 1). Each first demonstration lamp bead can be used to simulate and demonstrate the blood flow direction in the Willis circle;

[0011] 2). A set of gradually outwardly diverging arc brackets can be used to simulate an aneurysm;

[0012] 3). The third demonstration lamp bead can be used to simulate the demonstration process of the gradual formation of an aneurysm;

[0013] 4). The outlet bracket, the connection bracket, and the fourth demonstration lamp bead can be used to simulate the demonstration process of the rupture after the aneurysm develops to a certain extent, and demonstrate the process of blood flowing into the subarachnoid cavity after rupture;

[0014] 5). The second demonstration lamp bead can be used to demonstrate the process when there is bleeding in the subarachnoid cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present utility model Figure 1 ;

[0016] Figure 2 is a structural schematic diagram of the present utility model Figure 2 ;

[0017] Figure 3This is a schematic structural diagram of the arc bracket area in the present utility model.

[0018] Explanation of reference numerals: The Willis circle 1, the anterior communicating artery body 1-1, the initial segments of the bilateral anterior cerebral arteries body 1-2, the terminal segments of the bilateral internal carotid arteries body 1-3, the bilateral posterior communicating artery bodies 1-4, the initial segments of the bilateral posterior cerebral arteries body 1-5, the first demonstration lamp beads 2, the brain tissue body 3, the subarachnoid cavity 4, the skull body 5, the second demonstration lamp beads 6, the arc bracket 7, the third demonstration lamp beads 8, the outlet bracket 9, the connecting bracket 10, the fourth demonstration lamp beads 11, the pier 13, the rubber cushion block 13-1, the pillar 14, the start switch 15, the end switch 16, the screen 17, the single-chip microcomputer controller 18. Specific implementation mode

[0019] The present utility model will be further described below with reference to the accompanying drawings:

[0020] Referring to the accompanying drawings: This model teaching aid for simulating intracranial aneurysms includes the Willis circle 1, which is formed by anastomosing the anterior communicating artery body 1-1, the initial segments of the bilateral anterior cerebral arteries body 1-2, the terminal segments of the bilateral internal carotid arteries body 1-3, the bilateral posterior communicating artery bodies 1-4, and the initial segments of the bilateral posterior cerebral arteries body 1-5. A group of first demonstration lamp beads 2 are installed on the anterior communicating artery body 1-1, the initial segments of the bilateral anterior cerebral arteries body 1-2, the terminal segments of the bilateral internal carotid arteries body 1-3, the bilateral posterior communicating artery bodies 1-4, and the initial segments of the bilateral posterior cerebral arteries body 1-5. The brain tissue body 3 is filled around the Willis circle 1. The subarachnoid cavity 4 is arranged outside the brain tissue body 3. The skull body 5 is arranged outside the subarachnoid cavity 4. A group of second demonstration lamp beads 6 are installed at the subarachnoid cavity 4. A group of arc brackets 7 that gradually diverge outward are arranged at the Willis circle 1. A group of third demonstration lamp beads 8 evenly distributed along the arc direction are installed on each arc bracket 7. A pair of outlet brackets 9 arranged with the outer part larger and the inner part smaller are provided on the outermost arc bracket 7. A group of connecting brackets 10 leading to the subarachnoid cavity 4 are connected between the outer ends of the two outlet brackets 9 and between the two outlet brackets 9. A group of fourth demonstration lamp beads 11 are installed on the two outlet brackets 9 and each connecting bracket 10.

[0021] A pier 13 is arranged below the skull body 5, and a pillar 14 is installed between the skull body 5 and the pier 13.

[0022] Rubber cushion blocks 13-1 are installed at the four corners of the bottom of the pier 13.

[0023] Different color LED light-emitting bodies are respectively adopted between each first demonstration lamp bead 2, each second demonstration lamp bead 6, each third demonstration lamp bead 8, and each fourth demonstration lamp bead 11.

[0024] A start switch 15, an end switch 16 and a screen 17 for explaining each step are installed on the top of the pier 13. A single-chip microcomputer controller 18 is installed inside the pier 13. The single-chip microcomputer controller 18 is connected to the start switch 15, the end switch 16, the screen 17, the first demonstration lamp beads 2, the second demonstration lamp beads 6, the third demonstration lamp beads 8, and the fourth demonstration lamp beads 11.

[0025] The working principle of the present invention is as follows: when a demonstration is needed, only the start switch 15 needs to be pressed, so that the single chip controller 18 will light up the first demonstration lamp beads 2 and demonstrate the flow state of blood in the Willis circle. Subsequently, the third demonstration lamp beads 8 are controlled to light up gradually on the arc brackets 7, thereby simulating the process of aneurysm formation and then gradually growing. Then, the fourth demonstration lamp beads 11 on the two outlet brackets 9 are controlled to light up, thereby simulating the situation where the aneurysm develops to a certain extent and ruptures. Then, the fourth demonstration lamp beads 11 on the connecting bracket 10 are controlled to light up, thereby simulating the dynamic After the aneurysm ruptures, the blood quickly flows to the simulated process of the subarachnoid space 4. Finally, the second demonstration lamp beads 6 at the subarachnoid space 4 light up, thereby simulating subarachnoid hemorrhage, thereby completing the detailed simulation process of the entire intracranial aneurysm formation to rupture and then to subarachnoid hemorrhage, making the teaching more vivid and intuitive, and worthy of promotion and application; in the process of each demonstration lamp bead gradually lighting up, the screen will also display the corresponding content according to the steps, so that the demonstration content information is clearer and the demonstration lamp beads of different luminous colors can be used to more clearly distinguish the teaching process of each area, which is more intuitive.

[0026] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A model teaching aid for simulating intracranial aneurysms, including the Willis circle (1), which is formed by anastomosing the anterior communicating artery body (1-1), the initial segments of the bilateral anterior cerebral arteries (1-2), the terminal segments of the bilateral internal carotid arteries (1-3), the bilateral posterior communicating artery bodies (1-4), and the initial segments of the bilateral posterior cerebral arteries (1-5). Its characteristics are as follows: A set of first demonstration lamp beads (2) are installed on each of the traffic artery body (1-1), the initial segment bodies of the bilateral anterior cerebral arteries (1-2), the terminal segment bodies of the bilateral internal carotid arteries (1-3), the bilateral posterior communicating artery bodies (1-4), and the initial segment bodies of the bilateral posterior cerebral arteries (1-5). The cerebral tissue body (3) is filled around the Willis circle (1). The subarachnoid cavity (4) is provided outside the cerebral tissue body (3). The cerebral shell (5) is provided outside the subarachnoid cavity (4). A set of second demonstration lamp beads (6) are installed at the subarachnoid cavity (4). A set of arc brackets (7) that gradually diverge outward are arranged at the Willis circle (1). A set of third demonstration lamp beads (8) evenly distributed along the arc direction are installed on each of the arc brackets (7). A pair of outlet brackets (9) arranged with the outer part being large and the inner part being small are provided on the outermost arc bracket (7). A set of connecting brackets (10) that guide to the subarachnoid cavity (4) are connected between the outer ends of the two outlet brackets (9) and between the two outlet brackets (9). A set of fourth demonstration lamp beads (11) are installed on each of the two outlet brackets (9) and each of the connecting brackets (10).

2. The model teaching aid for simulating an intracranial aneurysm according to claim 1, wherein: A pier (13) is provided below the cerebral shell (5). A pillar (14) is installed between the cerebral shell (5) and the pier (13).

3. The model teaching aid for simulating an intracranial aneurysm according to claim 2, characterized in that: Rubber pads (13-1) are installed at the four corners of the bottom of the pier (13).

4. The teaching model for simulating an intracranial aneurysm according to claim 3, characterized in that: Different color LED light-emitting bodies are respectively adopted between each of the first demonstration lamp beads (2), each of the second demonstration lamp beads (6), each of the third demonstration lamp beads (8), and each of the fourth demonstration lamp beads (11).

5. The model teaching aid for simulating an intracranial aneurysm according to claim 4, characterized in that: A start switch (15), an end switch (16), and a screen (17) for explaining each step are installed at the top of the pier (13).

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