JP2006126686A - Blood vessel model - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blood vessel model which helps visually and tactually grasp the states of a blood vessel. <P>SOLUTION: A first blood vessel model 10 has a tube (first blood vessel section 14) with its inner wall made almost smooth. The first blood vessel section 14 has first particle reservoirs 16, 16 on its both ends to store many particles 18. A second blood vessel model 12 has a tube (second blood vessel section 24) which has projections (atheromas 32). The second blood vessel section 24 has second particle reservoirs 26, 26 on its both ends to store many second particles 28. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a blood vessel model that represents a state of a blood vessel.

  It is useful to examine that the blood vessel function has decreased, such as arteriosclerosis, with changes in eating habits, lack of exercise, aging, and the like. Conventionally, PWV is known as an index for examining vascular function. PWV refers to the speed at which a pulse wave from the heart propagates to a predetermined site. In arteries with good extensibility, a pulse wave is absorbed by the blood vessel wall like a rubber tube, and PWV becomes slow. In an artery that has lost its extensibility due to arteriosclerosis, the shock buffering force is lost like an iron pipe, so the PWV becomes faster. It is widely known that such a PWV is used as an index (for example, Patent Document 1).

JP 2003-250769 A

  However, conventionally, there is no easy representation of such a blood vessel state, and it has been difficult to easily explain arteriosclerosis.

  It is an object of the present invention to provide a blood vessel model that solves the above-mentioned conventional problems and can visually and tactilely understand the state of a blood vessel.

  A first feature of the present invention is a blood vessel model having a tube, a granular material storage unit connected to the tube, and a granular material stored in the granular material storage unit and flowing through the tube by gravity. is there.

  Preferably, the tube is made of an elastic body.

  Preferably, the granular material container is translucent.

  Also preferably, the tube is translucent.

  The second feature of the present invention is that the first tube, the first granular material storage unit connected to the first tube, and the first granular material storage unit are accommodated by gravity. A first blood vessel model having a first granular material flowing through the first tube, a second tube, a second granular material container connected to the second tube, and the second A second blood vessel model that is accommodated in the granular material accommodating portion and has a second granular material that flows through the second tube by gravity, and the first tube has an inner wall formed substantially smoothly, The second tube is in a combination of blood vessel models in which the inner wall is formed to be uneven.

  Preferably, each of the first tube and the second tube is made of an elastic body, and the second tube is a combination of blood vessel models according to claim 5, which is harder than the first tube.

  According to the present invention, the state of blood vessels can be understood visually and tactilely.

  Next, embodiments of the present invention will be described with reference to the drawings.

  In FIG. 1, the combination of the blood vessel model which combined the 1st blood vessel model 10 and the 2nd blood vessel model 12 which concern on implementation of this invention is shown.

  First, the first blood vessel model 10 will be described in detail with reference to FIG. 2A is a longitudinal sectional view of the first blood vessel model 10, and FIG. 2B is a sectional view taken along line AA of FIG. 2A.

  The first blood vessel model 10 has a tube (first blood vessel portion 14), and first granular material accommodating portions 16 and 16 are provided at both ends of the first blood vessel portion 14. A large number of first granular materials 18 are accommodated inside the first blood vessel portion 14 and the first granular material accommodating portions 16, 16, and the first granular material 18 is composed of the first blood vessel portion 12 and the first granular material 18. It is configured to be able to freely move inside the one granular material accommodating portion 14, 14. In addition, first holding members 20 and 20 are provided in the first granular material accommodating portions 16 and 16 so that the first blood vessel model 10 can stand on its own.

  The first blood vessel portion 14 is formed in a hollow cylindrical shape, and has the same thickness and the same length as the blood vessel portion of the second blood vessel model 12 described later. The first blood vessel portion 14 is, for example, a model of a young and elastic human blood vessel, and is made of an elastic body that is softer than the blood vessel portion of the second blood vessel model 12 described later. Further, the first blood vessel portion 14 is configured by a member having translucency so that the state inside the first blood vessel portion 14 can be observed from the outside. That is, the first blood vessel portion 14 is made of a member having both elastic and translucent properties, and is made of an elastic / translucent resin such as polyvinyl chloride resin (PVC), polybutadiene (PBD), ionomer (IO). ), Low density polyethylene (LD-PE) and the like. Further, the inner wall of the first blood vessel portion 14 is formed substantially smoothly.

  The first granular material accommodating portions 16, 16 are formed, for example, in a substantially spherical shape, and are provided at both ends of the first blood vessel portion 14. Moreover, the 1st granular material accommodating part 16 and 16 is comprised by the member which has translucency so that the state inside this 1st granular material accommodating part 16 and 16 can be observed from the outside. The first granular material accommodating portions 16, 16 include a first particle having the same size as the diameter of the first blood vessel portion 14 at the joint portion between the first granular material accommodating portions 16, 16 and the first blood vessel portion 14. One through hole 22 is formed. By forming the first through hole 22, the first blood vessel portion 14 and the first granular material accommodating portions 16, 16 communicate with each other.

  The first granular material 18 is formed in, for example, a spherical shape, and is arranged in a large number inside the first blood vessel portion 14 and inside the first granular material accommodating portions 16 and 16. The first granular material 18 is formed to have the same particle size as, for example, the second granular material of the second blood vessel model 12 described later, and is arranged in the same number as the second granular material described later, for example. Further, the first granular material 18 passes through the inside of the first blood vessel portion 14 from the one first granular material accommodating portion 16 disposed above by standing the first blood vessel model 10 vertically. Then, it moves (flows) by gravity to the other first granular material accommodating portion 16 disposed below. The first granular material 18 imitates human blood, and the state of blood flow can be visually understood by the movement (movement) of the first granular material 18.

  The first holding members 20 and 20 are provided one by one at the vertical ends of the first granular material accommodating portions 16 and 16 so that the first blood vessel model 10 can stand on its own. By placing the first holding member 20 on one side in a substantially horizontal position, the first blood vessel model 10 can stand vertically, and the other first holding member 20 is placed on the lower side. It is possible to make the first blood vessel model 10 stand upright. In other words, the first holding member 20, 20 can stand the first blood vessel model 10 even if it is rotated 180 °.

  Next, the second blood vessel model 12 will be described in detail with reference to FIG. 3A is a longitudinal sectional view of the second blood vessel model 12, and FIG. 3B is a sectional view taken along line BB of FIG. 3A.

  The second blood vessel model 12 includes a tube (second blood vessel portion 24), and second granular material accommodating portions 26 and 26 are provided at both ends of the second blood vessel portion 24. In addition, a large number of second granular materials 28 are accommodated in the second blood vessel portion 24 and the second granular material accommodating portions 26, 26, and the second granular material 28 includes the second blood vessel portion 24 and the second granular material 28. It is comprised so that the inside of the two granular material accommodating parts 26 and 26 can move freely. In addition, second holding members 30 and 30 are provided in the second granular material containing portions 26 and 26 so that the second blood vessel model 12 can stand on its own.

  The second blood vessel portion 24 is formed in a hollow cylindrical shape, and has the same thickness and the same length as the first blood vessel portion 14 of the first blood vessel model 10 described above. The second blood vessel portion 24 imitates, for example, a hard blood vessel in the human body, and is made of an elastic body that is harder than the blood vessel portion 14 of the first blood vessel model 10 described above. In addition, the second blood vessel portion 24 is configured by a member having translucency so that the internal state of the second blood vessel portion 24 can be observed from the outside. That is, the second blood vessel portion 24 is made of a member having both elastic and translucent properties, and is made of an elastic / translucent resin such as polyvinyl chloride resin (PVC), polybutadiene (PBD), ionomer (IO). ), Low density polyethylene (LD-PE) and the like.

Further, the entire inner wall of the second blood vessel portion 24 is provided with an uneven portion (ather portion 32). The atheroma portion 32 simulates atherosclerosis (atherosclerosis) in which a rod-like substance (atheroma) made of fat such as cholesterol accumulates and hardens in the inner lining of a blood vessel of a human body. A large number of irregularities are formed in the atheroma portion 32 in the same manner as the atheroma found in the blood vessels of the human body. Moreover, the atheroma part 32 is comprised by the member which has translucency so that an internal state can be observed from the outside similarly to the 2nd blood vessel part 24 mentioned above, and also is harder than the 1st blood vessel part 14 mentioned above. Consists of members. Therefore, since the inside of the second blood vessel portion 24 can be observed, a blood vessel clogged (thinned) by atheroma can be visually understood, and arteriosclerosis due to atherosclerosis can be understood from the touch. (The state where the blood vessel becomes hard) can be understood tactilely. Furthermore, by comparing the first blood vessel portion 14 of the first blood vessel model 10 and the second blood vessel portion 24 of the second blood vessel model 12 described above, the state in the blood vessel due to arteriosclerosis can be clearly seen. Can be understood tactilely.
The atheroma part 32 may be formed integrally with the second blood vessel part 24.

  The second granular material accommodating portions 26, 26 are formed in, for example, a substantially spherical shape, and are provided at both ends of the second blood vessel portion 24. Moreover, the 2nd granular material accommodating part 26 and 26 is comprised by the member which has translucency so that the state inside this 2nd granular material accommodating part 26 and 26 can be observed from the outside. The second granular material accommodating portions 26, 26 include a first particle having the same size as the diameter of the second blood vessel portion 24 at the junction between the second granular material accommodating portions 26, 26 and the second blood vessel portion 24. Two through holes 34 are formed. By forming the second through hole 34, the second blood vessel portion 24 and the second granular material accommodating portions 26 and 26 communicate with each other.

  The second granular material 28 is formed, for example, in a spherical shape, and is arranged in a large number inside the second blood vessel portion 24 and inside the second granular material accommodating portions 26, 26. The second granular material 28 is formed to have the same particle size as the first granular material 18 of the first blood vessel model 10 described above, for example, and is arranged in the same number as the first granular material 18 described above, for example. Further, the second granular material 28 passes through the inside of the second blood vessel portion 24 from the one second granular material accommodating portion 26 disposed above by standing the second blood vessel model 12 vertically. Then, it moves by gravity to the other second granular material accommodating portion 26 disposed below. The second granular material 28 is similar to the blood of the human body, and the state of blood flow can be visually understood by the movement (movement) of the second granular material 28.

  The second holding members 30 and 30 are provided one by one at the vertical ends of the second granular material storage portions 26 and 26 so that the second blood vessel model 12 can stand on its own. By placing this one second holding member 30 downward and placing it in a substantially horizontal place, the second blood vessel model 12 can stand vertically, and the other second holding member 30 is placed downward. It is possible to make the second blood vessel model 12 stand upright. That is, the second holding members 30 and 30 can stand the second blood vessel model 12 even if it is rotated 180 °.

  Next, the operation of the above embodiment will be described.

  The first blood vessel model 10 is made to stand vertically at a substantially horizontal place, and all the first particulate matter 18 is accommodated in the first particulate matter accommodating portion 16 below by gravity. Similarly, the second blood vessel model 12 stands vertically at a substantially horizontal place, and all the second particulate matter 28 is accommodated in the lower second particulate matter accommodating portion 26 by gravity.

  Next, as if an hourglass, the first blood vessel model 10 and the second blood vessel model are rotated 180 degrees to bring them both up.

  In the first blood vessel model 10, when the first blood vessel model 10 is rotated by 180 °, the first particulate matter 18 accommodated in the upper first particulate matter accommodating portion 16 is sequentially brought into the first by gravity. The inside of the blood vessel part 14 is moved. At this time, since the inside of the first blood vessel portion 14 is formed to be substantially smooth, many first granular materials 18 smoothly move downward in a substantially linear manner inside the blood vessel portion 12.

  In the second blood vessel model 12, when the second blood vessel model 12 is rotated by 180 °, the second particulate matter 28 accommodated in the upper second particulate matter accommodating portion 26 is sequentially second due to gravity. The inside of the blood vessel 24 is moved. At this time, since the atheroma part 32 having a large number of irregularities is formed inside the second blood vessel part 24, many particulates 16 collide with the atheroma part 32 and move while changing the direction. Thereby, it is possible to understand a state where the blood flow is turbulent due to arteriosclerosis due to atherosclerosis.

  As shown in FIG. 1, in the first granular material storage unit 16 above the first blood vessel part 14 in the first blood vessel model 10, many first granular materials 18 are smoothly lowered (first blood vessels). And move so as to flow into the part 14). On the other hand, in the second granular material storage unit 26 above the second blood vessel part 24 in the second blood vessel model 12, many second granular materials 28 will move downward (in the second blood vessel part 24). However, since the diameter of the second blood vessel portion 24 is smaller (thinner) than the atheroma portion 32, the second particulate matter 28 cannot flow (move) smoothly. Thus, by comparing the flow state of the first granular material 18 and the second granular material 28, the state where the blood flow is difficult to flow due to arteriosclerosis due to atherosclerosis can be more clearly and visually observed. I can understand.

  In addition, the time during which all the first particulate matter 18 passes (flows) through the first blood vessel portion 14 of the first blood vessel model 10 and the second blood vessel portion 24 of the second blood vessel model 12 includes all the second blood vessels 24. It is possible to understand the difficulty of blood flow due to arteriosclerosis by the passage time of the first granular material 18 and the second granular material 28 by comparing the passage time of the granular material 28 with the passage time. .

  After all the first particulate matter 18 is accommodated in the lower first particulate matter accommodating portion 16, the first particulate matter 18 is rotated again and again by rotating the first blood vessel model 10 by 180 °. Can flow through the first blood vessel portion 14. Similarly, after all the second particulate matter 28 is accommodated in the lower second particulate matter accommodating portion 26, the second blood vessel model 12 is rotated 180 ° again, so that the second The particulate matter 28 can flow through the second blood vessel portion 24. Thus, by using the principle of the hourglass, the state of blood flow can be reproduced repeatedly.

  In addition, the operation of flowing the first granular material 18 through the first blood vessel portion 14 only rotates the first blood vessel model 10 by 180 °, and therefore can be easily operated by anyone. Similarly, in the operation of flowing the second particulate matter 28 through the second blood vessel portion 24, since the second blood vessel model 12 is merely rotated by 180 °, anyone can easily operate it.

1 shows an overall longitudinal sectional view of a combination of blood vessel models according to an embodiment of the present invention. FIG. The 1st blood vessel model which concerns on embodiment of this invention is represented, (a) is a longitudinal cross-sectional view, (b) shows the AA sectional view taken on the line of (a). The 2nd blood vessel model which concerns on embodiment of this invention is represented, (a) is a longitudinal cross-sectional view, (b) shows the BB sectional drawing of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 1st blood vessel model 12 2nd blood vessel model 14 1st blood vessel part 16 1st granular material accommodating part 18 1st granular material 24 2nd blood vessel part 26 2nd granular material accommodating part 28 2nd Granules 32 Atherome

Claims (6)

  A blood vessel model having a tube, a granular material storage unit connected to the tube, and a granular material stored in the granular material storage unit and flowing through the tube by gravity.   The blood vessel model according to claim 1, wherein the tube is made of an elastic body.   The blood vessel model according to claim 1, wherein the granular material container is translucent.   The blood vessel model according to any one of claims 1 to 3, wherein the tube is translucent. A first tube, and a first granular material container connected to the first tube;
A first blood vessel model having a first granular material housed in the first granular material housing portion and flowing through the first tube by gravity;
A second pipe, and a second granular material container connected to the second pipe,
A second blood vessel model having a second granular material housed in the second granular material housing portion and flowing through the second tube by gravity,
The first tube is a combination of blood vessel models in which the inner wall is formed to be substantially smooth, and the second tube is formed to have an uneven inner wall.   The combination of blood vessel models according to claim 5, wherein each of the first tube and the second tube is made of an elastic body, and the second tube is harder than the first tube.

Images