23 Jul Small-caliber bionic blood vessel with three-layer structure
Abstract
The utility model discloses a small-caliber bionic blood vessel with a three-layer structure. The woven silk fibers are used as the inner layer of the bionic blood vessel to simulate the structure andthe performance of human body vascular collagen, and the electrostatic spinning polyurethane fibers are used as the outer layer to simulate the structure and the performance of vascular elastin. Besides, polyacrylamide hydrogel is adopted as a middle layer to further improve the elasticity of the bionic blood vessel, meanwhile, the bursting pressure of the bionic blood vessel is improved, and blood permeation in the using process is prevented. According to the utility model, a microscopic three-layer structure of a human blood vessel can be simulated, and special nonlinear mechanical properties of the human blood vessel can be simulated. In addition, the raw materials of the bionic blood vessel have good cell compatibility and are degradable, and the bionic blood vessel is suitable for blood vessel repair and regeneration in tissue engineering. Therefore, the small-caliber bionic blood vessel with the three-layer structure, prepared by the utility model, has a wide potential practicalvalue.
Year: 2020
Country: CN
Doc No: 210124875