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An artificial blood vessel preparation device

A technology for preparing a device and an artificial blood vessel, which is applied in the field of biomedical engineering and can solve problems such as affecting the long-term patency rate of blood vessels, fluctuations in mechanical properties of blood vessels, and affecting the uniformity of blood vessel walls.

Inactive Publication Date: 2015-08-05
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the preparation process, since the polyurethane solution is a fluid liquid, it is difficult to control its flow direction, and the prepared artificial blood vessel wall is required to be thinner, and a slight accumulation of liquid on the surface or a liquid defect will affect the blood vessel wall. Uniformity of
When the vascular wall is uneven, the mechanical properties of the blood vessel will fluctuate greatly, which will affect the long-term patency of the blood vessel.
At present, there is no special device to prepare polyurethane small-diameter artificial blood vessels with uniform vessel walls

Method used

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  • An artificial blood vessel preparation device

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and working principle of preparation device the present invention is described in further detail, see figure 1 .

[0013] An artificial blood vessel preparation device, the preparation device is composed of a combined upper cover 4, an outer mold tube 6, an inner mold tube 7, and a combined lower cover 11, and the preparation material can be glass, stainless steel or polytetrafluoroethylene. The inner mold tube 7 and the outer mold tube 6 are circular and hollow, and the inner wall of the top of the combined loam cake 4 is provided with an upper inner mold tube interface 3, and the upper inner mold tube interface 3 is hollow. The lower end of the combined upper cover 4 is provided with an upper outer mold tube interface 5, and the upper inner mold tube interface 3 and the upper outer mold tube interface 5 of the combined upper cover 4 are on the same center line. A symmetrical feed port 2 is arranged above the combined upp...

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Abstract

The invention relates to an artificial blood vessel preparing device and belongs to the biomedical engineering field. The preparing device is formed by connecting a combined upper cover, an outer mold tube, an inner mold tube, and a combined lower cover in a combined mode. The inner wall of the top of the combined upper cover is provided with an upper inner mold tube connector. An upper outer mold tube connector is arranged at the lower end of the combined upper cover. The inner wall of the bottom of the combined lower cover is provided with a lower inner mold tube connector. A lower outer mold tube connector is arranged at the upper end of the combined lower cover. The side wall of the combined lower cover is provided with an air pumping hole. The upper outer mold tube connector and the upper inner mold tube connector in the combined upper cover are respectively connected with one end of the outer mold tube and one end of the inner mold tube, and the lower outer mold tube connector and the lower inner mold tube connector in the combined lower cover are respectively connected with the other end of the outer mold tube and the other end of the inner mold tube. The artificial blood vessel preparing device changes the current situations that a large number of complicated devices are needed to prepare artificial blood vessels at present, and vessel walls of the artificial blood vessels are uneven, and has the advantages of being reasonable in structure, convenient to install, and simple to operate and use.

Description

technical field [0001] The invention relates to an artificial blood vessel preparation device, which belongs to the field of biomedical engineering. Background technique [0002] During the treatment of vascular diseases, it is necessary to use artificial blood vessels to replace or bypass blood vessels to maintain the integrity of the blood circulation system, ensure the delivery of nutrients and oxygen to various organs of the human body, and extend the life of the human body. Artificial blood vessels currently used in clinical practice are divided into two categories, one is biological blood vessels, which include autologous blood vessels, allogeneic blood vessels and xenograft blood vessels, and the other is synthetic blood vessels, mainly made of polyester and expanded polytetrafluoroethylene. Large diameter tubing. Biological blood vessels have a good long-term patency rate during use, but the technical requirements and trauma to the human body are relatively high whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/06
Inventor 杨红军徐卫林向艳丽叶青
Owner WUHAN TEXTILE UNIV
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