双层分叉机织人造血管的研制

Research on manufacture of double-layer bifurcated woven artificial blood vessel

针对目前人造血管在模拟人体自身血管形状和功能性方面存在不足,从纺织型人造血管的设计角度,提出双层分叉机织人造血管一次成型技术的研制思路。根据改造后的织造设备特点,对双层分叉人造血管的组织设计和上机方法进行研究。将双层分叉人造血管分成直管部分、过渡部分和分叉部分进行设计,确保了分叉部位的抗撕裂强度。为验证设计方法的有效性,结合实例设计样品,通过试织获得了符合设计目标的样品。分析样品的表面照片和纵、横向截面的电镜照片表明,设计方法和技术手段合理可行。

In view of the current artificial blood vessel has many deficiencies m simulating human blood vessel and functional aspects. A fast forming manufacture method of double-layer bifurcated woven artificial blood vessel was proposed from the viewpoint of textile design. The corresponding structure design and looming method were researched in light of the modified weaving machine. The design of double-layer bifurcated woven artificial blood vessel was divided into： straight section, transition section and bifurcated section. Thus, the tear strength of the bifurcated part was ensured. To verify the validity of specific example＇ s design, the samples which meet the design objectives were obtained through test weaving. Analysis of the surface, vertical and horizontal cross-sections of scanning electron micrographs of the sample shows that the applied design and technical methods are feasible.