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Physical model for study on determination of flow field of inferior vena branch

A physical model and bifurcation technology, applied in the field of medical devices, can solve the problems of difficult and difficult research on hemodynamics, and achieve the effect of reasonable and simple model structure and similar shape.

Inactive Publication Date: 2014-03-26
张喜成 +1
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Problems solved by technology

[0004] In the clinical study of peripheral vascular disease, iliac vein stenosis is an important topic in the study of peripheral vascular disease. Due to the anatomical characteristics of this part, local fluid dynamics abnormalities lead to related lower extremity venous diseases, but its hemodynamics in the human body Scientific research is difficult to conduct accurate research with existing instruments

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  • Physical model for study on determination of flow field of inferior vena branch

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with examples and experimental examples, but they are not limitations of the present invention.

[0016] Such as figure 1 As shown, the physical model used to study the flow field measurement of the inferior vena cava bifurcation includes a Y-shaped inferior vena cava bifurcation model 1, a water tank 6, two flowmeters and speed control devices 4, two circulation power pump 5. The circulation power pump 5 is installed in the water tank 6, and the circulation power pump 5 is powered through the power socket 7. The Y-shaped inferior vena cava bifurcation model 1 was used for flow field measurement.

[0017] The inferior vena cava bifurcation model 1 includes a vertically arranged port and two obliquely arranged ports, and the two obliquely arranged ports are liquid inlets. The vertically arranged ports are liquid outlets.

[0018] The obliquely arranged port extends into the water tank 6 th...

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Abstract

The invention discloses a physical model for the study on determination of flow field of an inferior vena branch. The model comprises an inverted-Y-shaped inferior vena branch model, a water tank, two flow meters, two speed regulators, and two circulating power pumps. The circulating power pumps are disposed inside the water tank. The inverted-Y-shaped inferior vena branch model comprises a vertical port and two diagonal ports. The diagonal ports are liquid inlets. The vertical port is a liquid outlet. The diagonal ports extend into the water tank through transparent hoses and are connected with the circulating power pumps inside the water tank. The flow meters and the speed regulators are disposed on the transparent hoses between the diagonal ports and the circulating power pumps. The vertical port extends to the water tank through another transparent hose. The physical model is reasonable and simple in structure and is similar to the human inferior vena branch in shape. The physical model meets the needs of PIV study, is applicable to PIV technical measurement, and can assist in studying hemodynamics of the human inferior vena branch.

Description

technical field [0001] The invention relates to a detection system technology for the geometric shape and flow field characteristics of blood vessels in the human vascular system, in particular to a fluid mechanics physical model for studying the lower segment of the inferior vena cava, and belongs to the technical field of medical devices. Background technique [0002] In medical research, how to detect the fluid dynamics of the cardiovascular system in the body has always been a difficult problem for researchers. Due to the complex flow field of blood flow in blood vessels, some current clinical diagnostic and scientific instruments, such as color Doppler, Magnetic resonance, etc., although parameters such as blood flow velocity can be obtained, but simple, direct and accurate data measurement of the complex flow of the cardiovascular system cannot be performed. [0003] In the past 10 years, great progress has been made in the construction of in vitro blood vessel models ...

Claims

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Application Information

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IPC IPC(8): G01M10/00
Inventor 张喜成李晓强潘广锐
Owner 张喜成
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