Artificial blood vessel preparing device

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...

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

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