Human body blood vessel puncture practice model

Abstract

The utility model belongs to the technical field of medical supplies, and particularly relates to a human body blood vessel puncture practice model, in the human body blood vessel puncture practice model, a liquid box is used for storing liquid for simulating blood, the liquid is generally red, so that visual teaching experience can be generated during teaching, and a liquid conveying pipeline is used for simulating human body blood vessels, so that the teaching experience is more visual. Simulated blood flows out from the output port of the liquid box, flows through the liquid conveying pipeline and finally flows back to the liquid box again from the input port, the human body blood circulation effect is simulated in the mode, puncture teaching is carried out at the puncture part, the puncture part is punctured to simulate the human body blood vessel puncture effect, and after multiple times of puncture teaching, the human body blood vessel puncture effect is simulated. When the infusion tube is used, only the puncture part needs to be locally replaced, the whole infusion tube does not need to be replaced, waste of resources is greatly reduced, other parts do not need to be reinstalled, and the replacement work difficulty is lowered.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical teaching, and particularly relates to a human blood vessel puncture practice model. Background Art

[0002] Blood collection from blood vessels is a basic operation in the nursing major of medical colleges. Although the procedure of this operation is not complicated, it is particularly difficult to reach a certain degree of proficiency, and a large number of practical operations are required to achieve it. Since this operation is one of the most important basic skills of nursing staff and has a great impact on the work quality after students graduate, great attention is paid to the training of nursing staff in this aspect of ability.

[0003] For the existing puncture teaching models, the pipelines simulating blood vessels are integrated. After multiple puncture practices, there will be needle holes remaining on the pipelines simulating blood vessels, and the simulated blood flowing in the pipelines will flow out through the needle holes, which will contaminate the test bench and affect puncture teaching. When this situation occurs, only the whole pipeline can be replaced, wasting resources. Content of the Utility Model

[0004] The purpose of the utility model is that: based on the inventor's own practice and combined with the actual use situation, aiming at the defects existing in the prior art, the inventor designs a human blood vessel puncture practice model to solve the technical problem that the existing puncture models need to replace the whole pipeline after long-term use, resulting in waste of resources.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A human blood vessel puncture practice model includes a liquid box and an infusion pipeline arranged around the liquid box. The liquid box has an output port and an input port. The infusion pipeline is respectively connected to the output port and the input port. The infusion pipeline has a puncture part, and the puncture part is movably connected to the infusion pipeline.

[0007] Further, the infusion pipeline includes a first pipeline. One end of the first pipeline is connected to the output port, and a driving pump is arranged at the other end of the first pipeline.

[0008] Further, the other side of the driving pump is connected to a second pipeline and a third pipeline. A peristaltic pump is arranged in the second pipeline. The second pipeline and the third pipeline are communicated with the first pipeline through the driving pump.

[0009] Further, the infusion pipeline further includes a fourth pipeline and a fifth pipeline. The fourth pipeline and the fifth pipeline are symmetrically arranged on both sides of the second pipeline and the third pipeline. The puncture part is arranged between the second pipeline and the fourth pipeline, and between the third pipeline and the fifth pipeline. One ends of the fourth pipeline and the fifth pipeline are respectively connected to the input port.

[0010] Further, the puncture part includes a first puncture tube, a second puncture tube, a third puncture tube, and a fourth puncture tube. The diameters of the first puncture tube, the second puncture tube, the third puncture tube, and the fourth puncture tube gradually increase.

[0011] Further, the first puncture tube and the second puncture tube are arranged between the second pipeline and the fourth pipeline. The third puncture tube and the fourth puncture tube are arranged between the third pipeline and the fifth pipeline. The second pipeline, the third pipeline, the fourth pipeline, and the fifth pipeline are also provided with a first connection part and a second connection part for connecting with the puncture part. The puncture part has a first opening and a second opening. The first opening is sleeved on the first connection part, and the second opening is sleeved on the second connection part.

[0012] Further, a flow cavity is provided inside the puncture part. The second pipeline, the third pipeline, the fourth pipeline, and the fifth pipeline are all communicated with the corresponding puncture part through the flow cavity.

[0013] Further, a flow cavity is provided inside the puncture part. The second pipeline, the third pipeline, the fourth pipeline, and the fifth pipeline are all communicated with the corresponding puncture part through the flow cavity.

[0014] Further, the first connection part and the second connection part are both provided with flow holes, and the flow holes penetrate through the first connection part and the second connection part.

[0015] Further, the cross-sectional diameters of the first connection part and the second connection part are both greater than or equal to the diameter of the flow cavity.

[0016] The beneficial effects of the present utility model are as follows. The human blood vessel puncture practice model provided by the present utility model includes a liquid tank and an infusion pipeline arranged around the liquid tank. The liquid tank is provided with an outlet and an inlet. The infusion pipeline is respectively connected to the outlet and the inlet. The infusion pipeline is provided with a puncture part, and the puncture part is movably connected to the infusion pipeline. In the present utility model, the liquid tank is used to store a liquid for simulating blood, usually this liquid is red, so that a more intuitive teaching experience will be generated during teaching. The infusion pipeline is used to simulate human blood vessels. Simulated blood flows out from the outlet of the liquid tank, flows through the infusion pipeline, and finally flows back into the liquid tank through the inlet, simulating the effect of human blood circulation in this way. During puncture teaching, it is carried out at the puncture part, and the effect of puncturing the human blood vessel is simulated by puncturing the puncture part. After multiple puncture teachings, only the puncture part needs to be locally replaced, and there is no need to replace the entire infusion pipeline, which greatly saves the waste of resources, and there is no need to reinstall some other components, simplifying the difficulty of replacement work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will describe the features, advantages and technical effects of the exemplary embodiments of the present utility model with reference to the attached Figures 1 to 2 drawings.

[0018] Figure 1 is the overall structural schematic diagram of the puncture practice model in the present utility model;

[0019] Figure 2 is Figure 1 the partial cross-sectional view of A in

[0020] In the figure: 1. Liquid tank; 2. Infusion pipeline; 3. Puncture part;

[0021] 11. Outlet; 12. Inlet;

[0022] 21. First pipeline; 22. Second pipeline; 23. Third pipeline; 24. Fourth pipeline; 25. Fifth pipeline; 26. Driving pump; 27. Peristaltic pump; 28a. First connection part; 28b. Second connection part; 29. Flow hole;

[0023] 31. First opening; 32. Second opening; 33. Flow cavity; 34. First puncture tube; 35. Second puncture tube; 36. Third puncture tube; 37. Fourth puncture tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description of the specification, claims and above drawings of this application are intended to cover non-exclusive inclusion.

[0025] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0026] Reference to "embodiment" herein means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0027] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and there are multiple situations where A exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0028] In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific situations.

[0029] The following will further elaborate on the present utility model in conjunction with the attached Figures 1 to 2 This is a further detailed description of the present utility model, but it does not limit the present utility model.

[0030] Human vascular puncture practice model, including a liquid tank 1 and an infusion pipeline 2 arranged around the liquid tank 1. The liquid tank 1 has an outlet 11 and an inlet 12. The infusion pipeline 2 is respectively connected to the outlet 11 and the inlet 12. The infusion pipeline 2 has a puncture part 3, and the puncture part 3 is movably connected to the infusion pipeline 2.

[0031] Specifically, the liquid tank 1 is used to store a liquid for simulating blood. Usually, this liquid is red, so that a more intuitive teaching experience will be generated during teaching. The infusion pipeline 2 is used to simulate human blood vessels. Simulated blood flows out from the outlet 11 of the liquid tank 1, flows through the infusion pipeline 2, and finally flows back into the liquid tank 1 at the inlet 12. In this way, the effect of human blood circulation is simulated. During puncture teaching, it is carried out at the puncture part 3. By puncturing the puncture part 3, the effect of puncturing human blood vessels is simulated. After multiple puncture teachings, only the puncture part 3 needs to be locally replaced, and there is no need to replace the entire infusion pipeline 2, which greatly saves the waste of resources, and there is no need to reinstall some other components, simplifying the difficulty of replacement work.

[0032] In this embodiment, the infusion pipeline 2 includes a first pipeline 21. One end of the first pipeline 21 is connected to the outlet 11, and a driving pump 26 is arranged at the other end of the first pipeline 21.

[0033] Specifically, the simulated blood in the liquid tank 1 flows out through the first pipeline 21. In order to simulate the effect of blood flowing in human blood vessels, a driving pump 26 is arranged in the infusion pipeline 2, and the driving pump 26 drives the simulated blood to circulate in the infusion pipeline 2.

[0034] In this embodiment, the other side of the driving pump 26 is connected to a second pipeline 22 and a third pipeline 23. A peristaltic pump 27 is arranged in the second pipeline 22. The second pipeline 22 and the third pipeline 23 are communicated with the first pipeline 21 through the driving pump 26.

[0035] Specifically, human blood vessels are divided into arteries and veins. The second pipeline 22 simulates the human artery, and the third pipeline 23 simulates the human vein. The blood flowing in the human artery is supplied by the heart, so the blood in the artery will transmit the amplitude of the heart beating. In order to more realistically simulate the human artery, a peristaltic pump 27 is arranged in the second pipeline 22 to simulate the beating of the human heart through the peristaltic pump 27; while the human vein transports the blood at the end of the human body to the heart, so the vein will not transmit the amplitude of the heart beating. Therefore, in this embodiment, the third pipeline 23 is not connected to the peristaltic pump 27.

[0036] In this embodiment, the infusion pipeline 2 further includes a fourth pipeline 24 and a fifth pipeline 25. The fourth pipeline 24 and the fifth pipeline 25 are symmetrically arranged on both sides of the second pipeline 22 and the third pipeline 23. The puncture part 3 is arranged between the second pipeline 22 and the fourth pipeline 24, and between the third pipeline 23 and the fifth pipeline 25. One ends of the fourth pipeline 24 and the fifth pipeline 25 are respectively connected to the input port 12.

[0037] Specifically, the fourth pipeline 24 and the fifth pipeline 25 are respectively communicated with the second pipeline 22 and the third pipeline 23 through the puncture part 3. The simulated blood flowing out of the liquid tank 1 first flows through the first pipeline 21, then through the second pipeline 22 and the third pipeline 23, and finally the simulated blood flows back to the liquid tank 1 through the fourth pipeline 24 and the fifth pipeline 25, thus forming a cycle. The puncture part 3 is used for the simulated blood to flow from the second pipeline 22 and the third pipeline 23 to the fourth pipeline 24 and the fifth pipeline 25.

[0038] In this embodiment, the puncture part 3 includes a first puncture tube 34, a second puncture tube 35, a third puncture tube 36 and a fourth puncture tube 37. The diameters of the first puncture tube 34, the second puncture tube 35, the third puncture tube 36 and the fourth puncture tube 37 gradually increase.

[0039] Specifically, since the human body has many arteries and veins, and the sizes of different arteries and veins are different, therefore, in this application, the first puncture tube 34, the second puncture tube 35, the third puncture tube 36 and the fourth puncture tube 37 are set to simulate the arteries and veins of different parts of the human body. In clinical manifestations, the most representative parts of the human body are the axillary artery, femoral artery, axillary vein and femoral vein. In this application, the first puncture tube 34 is used to simulate the axillary artery, the second puncture tube 35 is used to simulate the femoral artery, the third puncture tube 36 is used to simulate the axillary vein, and the fourth puncture tube 37 is used to simulate the femoral vein. In actual situations, the diameter of the vein is larger than that of the artery, the diameter of the femoral artery is larger than that of the axillary artery, and the femoral vein is larger than the axillary vein. In this application, the diameter of the fourth puncture tube 37 is larger than that of the third puncture tube 36, the diameter of the third puncture tube 36 is larger than that of the second puncture tube 35, and the diameter of the second puncture tube 35 is larger than that of the first puncture tube 34.

[0040] In this application, the first puncture tube 34 and the second puncture tube 35 are arranged between the second pipeline 22 and the fourth pipeline 24, the third puncture tube 36 and the fourth puncture tube 37 are arranged between the third pipeline 23 and the fifth pipeline 25. The second pipeline 22, the third pipeline 23, the fourth pipeline 24 and the fifth pipeline 25 are also provided with a first connection part 28a and a second connection part 28b for connecting with the puncture part 3. The puncture part 3 has a first opening 31 and a second opening 32. The first opening 31 is sleeved on the first connection part 28a, and the second opening 32 is sleeved on the second connection part 28b.

[0041] Specifically, due to the presence of a relatively large number of pipelines, to prevent the pipelines from getting entangled and making it inconvenient to perform puncture practice, multiple puncture parts 3 are provided and the multiple puncture parts 3 are arranged at equal distances, thereby separating the multiple pipelines. The second pipeline 22, the third pipeline 23, the fourth pipeline 24 and the fifth pipeline 25 are all provided with a first connection part 28a and a second connection part 28b for connecting the puncture part 3. The puncture part 3 is sleeved on the first connection part 28a and the second connection part 28b through the first opening 31 and the second opening 32. In this embodiment, the puncture part 3 is a rubber hose with self-healing function, which has elasticity. When the puncture part 3 is sleeved on the first connection part 28a and the second connection part 28b, the puncture part 3 elastically contracts to wrap the first connection part 28a and the second connection part 28b, thereby improving the connection stability. At the same time, using a rubber hose for the puncture part 3 can facilitate the puncture needle to penetrate well into the puncture part 3 during puncture teaching, so as to extract the simulated blood in the puncture part 3.

[0042] It should be noted that the first connection part 28a and the second connection part 28b are integrally provided with the corresponding pipelines. The integrally provided first connection part 28a and second connection part 28b can improve the connection stability with the puncture part 3 and prevent gaps from occurring at the connection between the puncture part 3 and the pipeline, resulting in leakage of the simulated blood.

[0043] After the puncture practice is completed, holes left by the puncture needle will remain on the rubber hose. When the number of puncture holes is small, the rubber hose can self-heal to cover the puncture holes, but it only achieves the effect of preventing the simulated blood from flowing out. If the puncture holes are relatively concentrated or the puncture holes are large, it is still necessary to replace the puncture part 3 in a timely manner to ensure the sealing performance of the puncture part 3.

[0044] Furthermore, a circulation cavity 33 is provided inside the puncture part 3. The second pipeline 22, the third pipeline 23, the fourth pipeline 24 and the fifth pipeline 25 are all communicated with the corresponding puncture part 3 through the circulation cavity 33.

[0045] Specifically, when performing puncture practice, it is necessary to insert the puncture needle into the puncture part 3 and then extract the simulated blood in the puncture part 3. The reason for setting the circulation cavity 33 in the puncture part 3 is to allow the circulation of the simulated blood. By inserting the puncture needle into the puncture part 3 to extract the simulated blood in the circulation cavity 33, the blood vessels of the human body can be simulated in this way.

[0046] Further, the first connecting part 28a and the second connecting part 28b are both provided with circulation holes 29, and the circulation holes 29 penetrate through the first connecting part 28a and the second connecting part 28b.

[0047] Specifically, the setting of the circulation holes 29 is to facilitate the circulation of the simulated blood from the infusion pipeline 2 into the circulation cavity 33. The first connecting part 28a and the second connecting part 28b are arranged on both sides of the puncture part 3, and the inner diameters of the circulation holes 29 in the first connecting part 28a and the second connecting part 28b are the same. The flow rate of the simulated blood flowing in through the circulation holes 29 is the same as that of the simulated blood flowing out through the circulation holes 29, making the flow rate of the simulated blood in the circulation cavity 33 relatively stable and improving the effect of puncture practice.

[0048] Further, the cross-sectional diameters of the first connecting part 28a and the second connecting part 28b are both greater than or equal to the diameter of the circulation cavity 33.

[0049] By setting the diameters of the first connecting part 28a and the second connecting part 28b to be greater than or equal to the diameter of the circulation cavity 33, the first connecting part 28a and the second connecting part 28b are in interference fit with the first opening 31 and the second opening 32, improving the connection stability of the puncture part 3.

[0050] Specifically, the cross-sectional diameters of the first connecting part 28a and the second connecting part 28b are both 1 millimeter greater than the diameter of the circulation cavity 33. When the first opening 31 and the second opening 32 are connected to the first connecting part 28a and the second connecting part 28b, the first opening 31 and the second opening 32 will produce a small deformation, making the connection between the puncture part 3 and the first connecting part 28a and the second connecting part 28b more firm.

[0051] The specific working principle of this application is as follows: Install or replace the puncture part 3 on the corresponding pipeline. Turn on the driving pump 26 to drive the simulated blood in the first pipeline 21 into the second pipeline 22 and the third pipeline 23. The simulated blood entering the third pipeline 23 is used to simulate the venous state. The simulated blood flows into the third puncture tube 36 and the fourth puncture tube 37, and the third puncture tube 36 and the fourth puncture tube 37 are used to simulate the axillary vein and femoral vein of the human body. Finally, the simulated blood flows out from the third puncture tube 36 and the fourth puncture tube 37 and returns to the liquid tank 1 through the fifth pipeline 25 to form a cycle. When the simulated blood entering the second pipeline 22 passes through the peristaltic pump 27, the peristaltic pump 27 makes the simulated blood simulate the amplitude when the heart beats. However, the simulated blood entering the first puncture tube and the second puncture tube 35 through the second pipeline 22 does not have the characteristic of heart beating. Subsequently, puncture teaching can be carried out on the first puncture tube 34 and the second puncture tube 35. Finally, the simulated blood flowing out from the first puncture tube 34 and the second puncture tube 35 returns to the liquid tank 1 through the fourth pipeline 24 to form a cycle in this way.

[0052] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0053] According to the disclosure and teaching of the above specification, those skilled in the art of the present utility model can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the above specific embodiments. Any obvious improvements, substitutions or variations made by those skilled in the art on the basis of the present utility model all belong to the protection scope of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. A human blood vessel puncture practice model, characterized in that: It includes a liquid tank and an infusion pipeline arranged around the liquid tank. The liquid tank has an outlet and an inlet, and the infusion pipeline is respectively connected to the outlet and the inlet. The infusion pipeline has a puncture part, and the puncture part is movably connected to the infusion pipeline.

2. The human blood vessel puncture practice model according to claim 1, wherein: The infusion pipeline includes a first pipeline. One end of the first pipeline is connected to the outlet, and a driving pump is arranged at the other end of the first pipeline.

3. The human blood vessel puncture practice model according to claim 2, wherein: A second pipeline and a third pipeline are connected to the other side of the driving pump. A peristaltic pump is arranged in the second pipeline, and the second pipeline and the third pipeline are communicated with the first pipeline through the driving pump.

4. The human blood vessel puncture practice model according to claim 3, characterized in that: The infusion pipeline further includes a fourth pipeline and a fifth pipeline. The fourth pipeline and the fifth pipeline are symmetrically arranged on both sides of the second pipeline and the third pipeline. The puncture part is arranged between the second pipeline and the fourth pipeline and between the third pipeline and the fifth pipeline. One ends of the fourth pipeline and the fifth pipeline are respectively connected to the inlet.

5. The human blood vessel puncture practice model according to claim 4, characterized in that: The puncture part is arranged on the side of the peristaltic pump away from the driving pump. The fourth pipeline is communicated with the second pipeline through the puncture part, and the fifth pipeline is communicated with the third pipeline through the puncture part.

6. The human blood vessel puncture practice model according to claim 5, characterized in that: The puncture part includes a first puncture tube, a second puncture tube, a third puncture tube and a fourth puncture tube. The diameters of the first puncture tube, the second puncture tube, the third puncture tube and the fourth puncture tube gradually increase.

7. The human blood vessel puncture practice model according to claim 6, characterized in that: The first puncture tube and the second puncture tube are arranged between the second pipeline and the fourth pipeline. The third puncture tube and the fourth puncture tube are arranged between the third pipeline and the fifth pipeline. The second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline are also provided with a first connection part and a second connection part for connecting with the puncture part. The puncture part has a first opening and a second opening. The first opening is sleeved on the first connection part, and the second opening is sleeved on the second connection part.

8. The human blood vessel puncture practice model according to claim 7, wherein: A circulation cavity is arranged in the puncture part. The second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline are all communicated with the corresponding puncture part through the circulation cavity.

9. The human blood vessel puncture practice model according to claim 8, wherein: Both the first connection part and the second connection part are provided with circulation holes, and the circulation holes penetrate through the first connection part and the second connection part.

10. The human blood vessel puncture practice model according to claim 9, characterized in that: The cross-sectional diameters of the first connection part and the second connection part are both greater than or equal to the diameter of the circulation cavity.

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